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check_domain_expiration.sh
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check_domain_expiration.sh
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#!/bin/bash
#############################################
#
# This plugin checks domain expiration date
#
# Author: Emil Wypych
#
# Contact: wypychemil at gmail.com
#
# GitHub: https://github.com/ewypych/icinga-domain-expiration-plugin
#
#############################################
# default days for warning (can change with -w cmd)
WARNING=30
# default days for critical (can change with -c cmd)
ALARM=10
# binaries path
WHOIS="/usr/bin/whois"
AWK="/usr/bin/awk"
# Main check function
check_domain()
{
# Set domain
DOMAIN=$1
# check root domain
DTYPE=$( echo $DOMAIN | awk -F "." '{print $NF}' )
if [ "$DTYPE" == "com" ]
then
# "=${1}" because of many possibilities - check out google.com with "whois google.com"
EXDATE_TMP=$(${WHOIS} -h whois.internic.com "=${1}" | ${AWK} '/Registry Expiry Date:/ { print $4 }' | cut -c 1-16)
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "se" ] || [ "$DTYPE" == "nu" ]
then
EXDATE_TMP=$(${WHOIS} "${1}" | ${AWK} '/expires:/ { print $2 }')
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "ua" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.ua "${1}" | ${AWK} '/expires:/ { print $2 }')
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "asia" ]
then
EXDATE_TMP=$(${WHOIS} "${1}" | ${AWK} '/Registry Expiry Date:/ { print $4 }' | cut -c 1-16)
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "org" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.pir.org "${1}" | ${AWK} '/Expiry Date:/ { print $4 }' | cut -c 1-16)
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "info" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.afilias.info "${1}" | ${AWK} '/Expiry Date:/ { print $4 }' | cut -c 1-16)
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "net" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.verisign-grs.com "${1}" | ${AWK} '/Registry Expiry Date:/ { print $4 }' | cut -c 1-16)
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "center" ]
then
EXDATE_TMP=$(${WHOIS} "${1}" | ${AWK} '/Registry Expiry Date:/ { print $4 }' | cut -c 1-16)
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "pro" ]
then
EXDATE_TMP=$(${WHOIS} "${1}" | ${AWK} '/Registry Expiry Date:/ { print $4 }' | cut -c 1-16)
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "me" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.nic.me "${1}" | ${AWK} '/Registry Expiry Date:/ { print $4 }' | cut -c 1-16)
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "su" ]
then
EXDATE=$(${WHOIS} "${1}" | ${AWK} '/paid-till:/ { print $2 }' | cut -d 'T' -f1)
if [ -z "$EXDATE" ]
then
EXP_DAYS=NULL
else
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "xn--p1ai" ]
then
EXDATE=$(${WHOIS} "${1}" | ${AWK} '/paid-till:/ { print $2 }' | cut -d 'T' -f1)
if [ -z "$EXDATE" ]
then
EXP_DAYS=NULL
else
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "ru" ]
then
EXDATE=$(${WHOIS} "${1}" | ${AWK} '/paid-till:/ { print $2 }' | cut -d 'T' -f1)
if [ -z "$EXDATE" ]
then
EXP_DAYS=NULL
else
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "moscow" ]
then
EXDATE_TMP=$(${WHOIS} "${1}" | ${AWK} '/Registry Expiry Date:/ { print $4 }' | cut -c 1-16)
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "art" ]
then
EXDATE=$(${WHOIS} -h whois.nic.art "${1}" | ${AWK} '/Registry Expiry Date:/ { gsub("[:.]","-"); print $4 }' | cut -d 'T' -f1)
if [ -z "$EXDATE" ]
then
EXP_DAYS=NULL
else
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "pl" ]
then
EXDATE=$(${WHOIS} "${1}" | ${AWK} '/renewal date:/ { gsub("[:.]","-"); print $3 }')
if [ -z "$EXDATE" ]
then
EXDATE=$(${WHOIS} -h whois.dns.pl "${1}" | ${AWK} '/expiration date:/ { gsub("[:.]","-"); print $3 }')
if [ -z "$EXDATE" ]
then
EXP_DAYS=NULL
else
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
else
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "cz" ]
then
EXDATE=$(${WHOIS} -h whois.nic.cz "${1}" | ${AWK} '/expire:/ { gsub("[.]","/",$2); print $2 }')
if [ -z "$EXDATE" ]
then
EXP_DAYS=NULL
else
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "fr" -o "$DTYPE" == "re" -o "$DTYPE" == "yt" -o "$DTYPE" == "tf" -o "$DTYPE" == "wf" -o "$DTYPE" == "pm" ]
then
EXDATE=$(${WHOIS} -h whois.afnic.fr "${1}" | ${AWK} '/Expiry Date:/ { gsub("[:.]","-"); print $3 }' | cut -d 'T' -f1)
if [ -z "$EXDATE" ]
then
EXP_DAYS=NULL
else
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "shop" ]
then
EXDATE=$(${WHOIS} -h whois.nic.shop "${1}" | ${AWK} '/Registry Expiry Date:/ { gsub("[:.]","-"); print $4 }' | cut -d 'T' -f1)
if [ -z "$EXDATE" ]
then
EXP_DAYS=NULL
else
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "tv" ]
then
EXDATE=$(${WHOIS} -h tvwhois.verisign-grs.com "${1}" | ${AWK} '/Registry Expiry Date:/ { gsub("[:.]","-"); print $4 }' | cut -d 'T' -f1)
if [ -z "$EXDATE" ]
then
EXP_DAYS=NULL
else
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "im" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.nic.im "${1}" | ${AWK} '/Expiry Date:/ { gsub("[:.]","-"); print $3 }' | cut -d 'T' -f1 | awk -F[/] '{print $2"/"$1"/"$3}')
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "uk" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.nic.uk "${1}" | grep 'Expiry date' | ${AWK} '{ print $3 }' )
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "tech" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.nic.tech "${1}" | grep -i 'Expiry Date' | ${AWK} '{ print $4 }' )
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "co" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.nic.co "${1}" | grep -i 'Expiry Date' | ${AWK} '{ print $4 }' )
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "digital" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.nic.digital "${1}" | grep -i 'Expiry Date' | ${AWK} '{ print $4 }' )
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "br" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.registro.br "${1}" | grep -i 'expires' | ${AWK} '{ print $2 }' )
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$DTYPE" == "do" ]
then
EXDATE_TMP=$(${WHOIS} -h whois.nic.do "${1}" | ${AWK} '/Registrar Registration Expiration Date:/ { print $5 }')
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
else
echo "UNKNOWN - "$DTYPE" unsupported"
exit 3
fi
}
# Check function for a specific whois
check_domain_by_whois()
{
# Set domain
DOMAIN=$1
SERVER=$2
if [ "$SERVER" == "whois.crazydomains.com" ]
then
EXDATE_TMP=$(${WHOIS} -h ${SERVER} "${DOMAIN}" | grep -i 'Expiration Date' | ${AWK} '{ print $5 }' )
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
elif [ "$SERVER" == "whois.cloudflare.com" ]
then
EXDATE_TMP=$(${WHOIS} -h ${SERVER} "${DOMAIN}" | grep -i 'Expiration Date' | ${AWK} '{ print $5 }' )
if [ -z "$EXDATE_TMP" ]
then
EXP_DAYS=NULL
else
EXDATE=`date -d"$EXDATE_TMP" +%Y-%m-%d`
EXP_DAYS=$(( ( $(date -ud ${EXDATE} +'%s') - $(date -ud `date +%Y-%m-%d` +'%s') )/60/60/24 ))
fi
else
echo "UNKNOWN - "$SERVER" unsupported"
exit 3
fi
}
# Help function
help()
{
echo "Usage: $0 [ -d domain_name ] [ -s whois_server ] [ -w ex_days ] [ -c ex_days ] [ -h ]"
echo
echo " -d domain : Domain to check"
echo " -s whois server : Whois server to query by"
echo " -h : Show help"
echo " -w days : Domain expiration days (warning)"
echo " -c days : Domain expiration days (critical)"
echo
}
while getopts :hd:s:w:c: option
do
case "${option}"
in
d) DOMAIN=$( echo ${OPTARG} );;
s) SERVER=$OPTARG;;
w) WARNING=$OPTARG;;
c) ALARM=$OPTARG;;
h | *) help
exit 3;;
esac
done
# check whether ALARM is greater or equal WARNING
if [ $ALARM -ge $WARNING ]
then
echo "UNKNOWN - CRITICAL threshold cannot be bigger than WARNING"
exit 3
fi
if [ "${SERVER:=auto}" == auto ]
then
check_domain "${DOMAIN}"
else
check_domain_by_whois "${DOMAIN}" "${SERVER}"
fi
# exit codes based on the check_domain result
if ! [[ "$EXP_DAYS" =~ ^-?[0-9]+$ ]]
then
echo "UNKNOWN - expiration date has not been provided by WHOIS server"
exit 3
else
if [ $EXP_DAYS -gt $WARNING ]
then
echo "OK - $EXP_DAYS days until domain expires"
exit 0
elif [ $EXP_DAYS -le $WARNING -a $EXP_DAYS -gt $ALARM ]
then
echo "WARNING - $EXP_DAYS days until domain expires"
exit 1
elif [ $EXP_DAYS -le $ALARM -a $EXP_DAYS -gt 0 ]
then
echo "CRITICAL - $EXP_DAYS days until domain expires"
exit 2
elif [ $EXP_DAYS -lt 0 ]
then
echo "CRITICAL - domain has expired!"
exit 2
else
echo "UNKNOW - $EXP_DAYS"
exit 3
fi
fi