#!/bin/bash
#
# Source: http://www.cyberciti.biz/files/scripts/domain-check-2.txt
# Program: Domain Expiration Check <domain-check>
#
# Author: Matty < matty91 at gmail dot com >
#
# Current Version: 1.96
#
# Revision History:
# Version 1.96
# Rename variables so system variables aren't potentially changed. -- Eric Renfro <psi-jack@linux-help.org>
# Code optimization and per-whois delay capability is possible. -- Eric Renfro <psi-jack@linux-help.org>
# Output table is now fully string size padded for results. -- Eric Renfro <psi-jack@linux-help.org>
# Version 1.95
# Added support for .ie and .us domain names
# Cleaned up some areas where awk and cut were being called
# directly rather than from the variables they were asigned to. -- Chris Jones <chris@sysadminchris.com>
# Version 1.9
# Bug fix and enhancement for .uk and .co.uk -- Vivek Gite <vivek@nixcraft.com>
#
# Version 1.8
# Bug fix added $MAIL -- Vivek Gite <vivek@nixcraft.com>
#
# Version 1.7
# Added support for .jp domain names -- Vivek Gite <vivek@nixcraft.com>
#
# Version 1.6
# Added support for .uk domain names; fixed a bug detecting tldtype -- Vivek Gite <vivek@nixcraft.com>
#
# Version 1.5
# Added support for .org, .in, .biz and .info domain names -- Vivek Gite <vivek@nixcraft.com>
#
# Version 1.4
# Updated the documentation.
#
# Version 1.3
# Gracefully Handle the case where the expiration data is unavailable
#
# Version 1.2
# Added "-s" option to allow arbitrary registrars
#
# Version 1.1
# Fixed issue with 'e' getopt string -- Pedro Alves
#
# Version 1.0
# Initial Release
#
# Last Updated: 07-Aug-2012
#
# Purpose:
# domain-check checks to see if a domain has expired. domain-check
# can be run in interactive and batch mode, and provides faciltities
# to alarm if a domain is about to expire.
#
# License:
# 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.
#
# Notes:
# Since each registrar provides expiration data in a unique format (if
# they provide it at all), domain-check is currently only able to
# processess expiration information for a subset of the available
# registrars.
#
# Requirements:
# Requires whois
#
# Installation:
# Copy the shell script to a suitable location
#
# Tested platforms:
# -- Solaris 9 using /bin/bash
# -- Solaris 10 using /bin/bash
# -- OS X 10.4.2 using /bin/sh
# -- OpenBSD using /bin/sh
# -- FreeBSD using /bin/sh
# -- Redhat advanced server 3.0MU3 using /bin/sh
#
# Usage:
# Refer to the usage() sub-routine, or invoke domain-check
# with the "-h" option.
#
# Example:
#
# The first example will print the expiration date and registrar for prefetch.net:
#
# $ domain-check.sh -d prefetch.net
#
# Domain Registrar Status Expires Days Left
# ----------------------------------- ----------------- -------- ----------- ---------
# prefetch.net INTERCOSMOS MEDIA Valid 13-feb-2006 64
#
# The second example prints the expiration date and registrar for the domains
# listed in the file "domains":
#
# $ domain-check.sh -f domains
#
# Domain Registrar Status Expires Days Left
# ----------------------------------- ----------------- -------- ----------- ---------
# sun.com NETWORK SOLUTIONS Valid 20-mar-2010 1560
# google.com EMARKMONITOR INC. Valid 14-sep-2011 2103
# ack.com NETWORK SOLUTIONS Valid 09-may-2008 880
# prefetch.net INTERCOSMOS MEDIA Valid 13-feb-2006 64
# spotch.com GANDI Valid 03-dec-2006 357
#
# The third example will e-mail the address admin@prefetch.net with the domains that
# will expire in 60-days or less:
#
# $ domain-check -a -f domains -q -x 60 -e admin@prefetch.net
#
PATH=/bin:/usr/bin:/usr/local/bin:/usr/local/ssl/bin:/usr/sfw/bin ; export PATH
# Who to page when an expired domain is detected (cmdline: -e)
admin="sysadmin@mydomain.com"
# Hostname to report to Zabbix Servers (cmdline: -i)
hostname="-"
# Number of days in the warning threshhold (cmdline: -x)
warnDays=30
# If quiet is set to TRUE, don't print anything on the console (cmdline: -q)
quiet=false
# Human readable output default to off for Zabbix server processing (cmdline: -r)
human=false
# Don't send emails by default (cmdline: -a)
alarm=false
# JSON Discovery mode off by default (cmdline: -j)
json=false
# Whois server to use (cmdline: -s)
whoisServer="whois.internic.org"
# Location of system binaries
awk="/usr/bin/awk"
whois="/usr/bin/whois"
date="/bin/date"
cut="/usr/bin/cut"
mailContact="/bin/mail"
# Track tld types for query limiting:
declare -A domainPoll
#############################################################################
# Purpose: Convert a date from MONTH-DAY-YEAR to Julian format
# Acknowledgements: Code was adapted from examples in the book
# "Shell Scripting Recipes: A Problem-Solution Approach"
# ( ISBN 1590594711 )
# Arguments:
# $1 -> Month (e.g., 06)
# $2 -> Day (e.g., 08)
# $3 -> Year (e.g., 2006)
#############################################################################
date2julian()
{
if [[ "${1} != "" && "${2} != "" && "${3}" != "" ]]
then
## Since leap years add aday at the end of February,
## calculations are done from 1 March 0000 (a fictional year)
d2j_tmpmonth=$((12 * ${3} + ${1} - 3))
## If it is not yet March, the year is changed to the previous year
d2j_tmpyear=$(( ${d2j_tmpmonth} / 12))
## The number of days from 1 March 0000 is calculated
## and the number of days from 1 Jan. 4713BC is added
echo $(( (734 * ${d2j_tmpmonth} + 15) / 24 - 2 * ${d2j_tmpyear} + ${d2j_tmpyear}/4
- ${d2j_tmpyear}/100 + ${d2j_tmpyear}/400 + $2 + 1721119 ))
else
echo 0
fi
}
#############################################################################
# Purpose: Convert a string month into an integer representation
# Arguments:
# $1 -> Month name (e.g., Sep)
#############################################################################
getmonth()
{
case ${1,,} in
jan) echo 1 ;;
feb) echo 2 ;;
mar) echo 3 ;;
apr) echo 4 ;;
may) echo 5 ;;
jun) echo 6 ;;
jul) echo 7 ;;
aug) echo 8 ;;
sep) echo 9 ;;
oct) echo 10 ;;
nov) echo 11 ;;
dec) echo 12 ;;
*) echo 0 ;;
esac
}
#############################################################################
# Purpose: Calculate the number of seconds between two dates
# Arguments:
# $1 -> Date #1
# $2 -> Date #2
#############################################################################
date_diff()
{
if [[ "${1}" != "" && "${2}" != "" ]]
then
echo $(expr ${2} - ${1})
else
echo 0
fi
}
##################################################################
# Purpose: Access whois data to grab the registrar and expiration date
# Arguments:
# $1 -> Domain to check
##################################################################
check_domain_status()
{
local registrar=""
# Avoid whois LIMIT EXCEEDED - slowdown our whois client by adding 3 sec
#sleep 3
# Save the domain since set will trip up the ordering
domain=${1}
tldType="$(echo ${domain} | ${cut} -d '.' -f3 | tr '[A-Z]' '[a-z]')"
if [[ "${tldType}" = "" ]];
then
tldType="$(echo ${domain} | ${cut} -d '.' -f2 | tr '[A-Z]' '[a-z]')"
fi
# Invoke whois to find the domain registrar and expiration date
#whoisVal=$(${whois} -h ${whoisServer} "=${1}")
# Let whois select server
# The whois Expiration data should resemble the following: "Expiration Date: 09-may-2008"
case $tldType in
"org") [[ -n ${domainPoll[$tldType]} ]] && sleep 15
whoisVal=$(${whois} -h "whois.pir.org" "${1}")
registrar=$(echo "$whoisVal" | grep "Sponsoring Registrar:" | cut -d':' -f2)
domainDate=$(echo "${whoisVal}" | ${awk} '/Expiration Date:/ { print $2 }' | ${cut} -d':' -f2)
;;
"in") whoisVal=$(${whois} -h "whois.registry.in" "${1}")
registrar=$(echo "$whoisVal" | grep "Sponsoring Registrar:" | cut -d':' -f2)
domainDate=$(echo "${whoisVal}" | ${awk} '/Expiration Date:/ { print $2 }' | ${cut} -d':' -f2)
;;
"uk") whoisVal=$(${whois} -h "whois.nic.uk" "${1}")
registrar=$(echo "$whoisVal" | grep "Sponsoring Registrar:" | cut -d':' -f2)
domainDate=$(echo "${whoisVal}" | ${awk} '/Renewal date:/ || /Expiry date:/ { print $3 }')
;;
"biz") whoisVal=$(${whois} -h "whois.neulevel.biz" "${1}")
registrar=$(echo "$whoisVal" | grep "Sponsoring Registrar:" | cut -d':' -f2)
domainDate=$(echo "${whoisVal}" | ${awk} '/Domain Expiration Date:/ { print $6"-"$5"-"$9 }')
;;
"info") whoisVal=$(${whois} -h "whois.afilias.info" "${1}")
registrar=$(echo "$whoisVal" | grep "Sponsoring Registrar:" | cut -d':' -f2)
domainDate=$(echo "${whoisVal}" | ${awk} '/Expiration Date:/ { print $2 }' | ${cut} -d':' -f2)
;;
"us") whoisVal=$(${whois} -h "whois.nic.us" "${1}")
registrar=$(echo "$whoisVal" | grep "Sponsoring Registrar:" | cut -d':' -f2)
domainDate=$(echo "${whoisVal}" | ${awk} '/Domain Expiration Date:/ { print $6"-"$5"-"$9 }')
;;
"com" | "net" | "edu")
whoisVal=$(${whois} -h "whois.internic.org" "${1}")
registrar=$(echo "$whoisVal" | grep "Registrar:" | sed -e 's/^[ \t]*//g' -e 's/[ \t]*$//g' | cut -d':' -f2 | sed -e 's/^[ \t]*//g')
domainDate=$(echo "${whoisVal}" | ${awk} '/Expiration/ { print $NF }')
#echo "Registrar = $registrar"
#exit 0
;;
"ie") whoisVal=$(${whois} -h "whois.domainregistry.ie" "${1}")
registrar=$(echo "$whoisVal" | grep "Sponsoring Registrar:" | cut -d':' -f2)
tdomdate=$(echo "${whoisVal}" | ${awk} '/renewal/ { print $2 }')
tyear=$(echo ${tdomdate} | ${cut} -d'-' -f3)
tmon=$(echo ${tdomdate} | ${cut} -d'-' -f2)
case ${tmon} in
"January") tmonth=jan ;;
"February") tmonth=feb ;;
"March") tmonth=mar ;;
"April") tmonth=apr ;;
"May") tmonth=may ;;
"June") tmonth=jun ;;
"July") tmonth=jul ;;
"August") tmonth=aug ;;
"September") tmonth=sep ;;
"October") tmonth=oct ;;
"November") tmonth=nov ;;
"December") tmonth=dec ;;
*) tmonth=0 ;;
esac
tday=$(echo ${tdomdate} | ${cut} -d'-' -f1)
domainDate=$(echo $tday-$tmonth-$tyear)
;;
"jp") whoisVal=$(${whois} -h "whois.jprs.jp" "${1}")
registrar=$(echo "$whoisVal" | grep "Sponsoring Registrar:" | cut -d':' -f2)
tdomdate=$(echo "${whoisVal}" | ${awk} '/Expires on/ { print $3 }')
tyear=$(echo ${tdomdate} | ${cut} -d'/' -f1)
tmon=$(echo ${tdomdate} | ${cut} -d'/' -f2)
case ${tmon} in
1|01) tmonth=jan ;;
2|02) tmonth=feb ;;
3|03) tmonth=mar ;;
4|04) tmonth=apr ;;
5|05) tmonth=may ;;
6|06) tmonth=jun ;;
7|07) tmonth=jul ;;
8|08) tmonth=aug ;;
9|09) tmonth=sep ;;
10) tmonth=oct ;;
11) tmonth=nov ;;
12) tmonth=dec ;;
*) tmonth=0 ;;
esac
tday=$(echo ${tdomdate} | ${cut} -d'/' -f3)
domainDate=$(echo $tday-$tmonth-$tyear)
;;
"cz") [[ -n ${domainPoll[$tldType]} ]] && sleep 20
whoisVal=$(${whois} -h "whois.nic.cz" "${1}")
registrar=$(echo "$whoisVal" | grep "registrar:" | head -1 | cut -d':' -f2 | sed -e 's/^ *//' -e 's/ *$//')
tdomdate=$(echo "${whoisVal}" | awk '/expire:/ { print $2 }')
tyear=$(echo ${tdomdate} | cut -d'.' -f3)
tmon=$(echo ${tdomdate} | cut -d'.' -f2)
tday=$(echo ${tdomdate} | cut -d'.' -f1)
case ${tmon} in
1|01) tmonth=jan ;;
2|02) tmonth=feb ;;
3|03) tmonth=mar ;;
4|04) tmonth=apr ;;
5|05) tmonth=may ;;
6|06) tmonth=jun ;;
7|07) tmonth=jul ;;
8|08) tmonth=aug ;;
9|09) tmonth=sep ;;
10) tmonth=oct ;;
11) tmonth=nov ;;
12) tmonth=dec ;;
*) tmonth=0 ;;
esac
domainDate=$(echo $tday-$tmonth-$tyear)
;;
*) whoisVal=$(${whois} -h "${whoisServer}" "${1}")
registrar=$(echo "$whoisVal" | grep "Sponsoring Registrar:" | cut -d':' -f2)
domainDate=$(echo "${whoisVal}" | ${awk} '/Expiration/ { print $NF }')
;;
esac
if [[ -z ${domainPoll[$tldType]} ]]; then
domainPoll[$tldType]=1
else
let domainPoll[$tldType]++
fi
# If the Registrar is NULL, then we didn't get any data
#if [[ "${registrar}" = "" ]]
#then
# prints "$domain" "Unknown" "Unknown" "Unknown" "Unknown"
# return
#fi
#echo $domainDate # debug
# Whois data should be in the following format: "13-feb-2006"
IFS="-"
set -- ${domainDate}
month=$(getmonth ${2})
IFS=""
# Convert the date to seconds, and get the diff between NOW and the expiration date
domainJulian=$(date2julian ${month} ${1#0} ${3})
domainDiff=$(date_diff ${nowJulian} ${domainJulian})
if ! $human
then
echo "$hostname domain.daysleft[${domain}] ${domainDiff}"
fi
if [[ ${domainDiff} -lt 0 ]]
then
if $alarm
then
echo "The domain ${domain} has expired!" \
| ${mailContact} -s "Domain ${domain} has expired!" ${admin}
fi
prints ${domain} "Expired" "${domainDate}" "${domainDiff}" ${registrar}
elif [[ ${domainDiff} -lt ${warnDays} ]]
then
if $alarm
then
echo "The domain ${domain} will expire on ${domainDate}" \
| ${mailContact} -s "Domain ${domain} will expire in ${warnDays}-days or less" ${admin}
fi
prints ${domain} "Expiring" "${domainDate}" "${registrar}"
else
prints ${domain} "Valid" "${domainDate}" "${domainDiff}" "${registrar}"
fi
}
####################################################
# Purpose: Print a heading with the relevant columns
# Arguments:
# None
####################################################
print_heading()
{
if $human
then
if ! $quiet
then
printf "\n%-35s %-17s %-8s %-11s %-5s\n" "Domain" "Registrar" "Status" "Expires" "Days Left"
echo "----------------------------------- ----------------- -------- ----------- ---------"
fi
fi
}
#####################################################################
# Purpose: Print a line with the expiraton interval
# Arguments:
# $1 -> Domain
# $2 -> Status of domain (e.g., expired or valid)
# $3 -> Date when domain will expire
# $4 -> Days left until the domain will expire
# $5 -> Domain registrar
#####################################################################
prints()
{
if $human
then
if ! $quiet
then
minDate=$(echo $3 | ${awk} '{ print $1, $2, $4 }')
printf "%-35s %-17s %-8s %-11s %-5s\n" "${1:0:35}" "${5:0:17}" "${2:0:8}" "${minDate:0:11}" "${4:0:5}"
fi
fi
}
##########################################
# Purpose: Describe how the script works
# Arguments:
# None
##########################################
usage()
{
#app="$(basename $0)"
echo "Usage:" >&2
echo "Zabbix Agent Mode:" >&2
echo " [-s whois_host] [-i hostname] <-d domain | -f file>" >&2
echo "Human Readable Mode:" >&2
echo " -r [-q][-a] [-e email] [-x days] [-s host] <-d domain|-f file>" >&2
echo "JSON Mode:" >&2
echo " -j -f domainfile" >&2
echo "" >&2
echo " -a : Send a warning message through email " >&2
echo " -d domain : Domain to analyze (interactive mode)" >&2
echo " -e email address : Email address to send expiration notices" >&2
echo " -f domain file : File with a list of domains" >&2
echo " -h : Print this screen" >&2
echo " -i hostname : Hostname for Zabbix Server" >&2
echo " -j : Discovery JSON Object for Zabbix auto-discovery, (needs -f)" >&2
echo " -r : Human Readable" >&2
echo " -s whois server : Whois sever to query for information" >&2
echo " -q : Don't print anything on the console" >&2
echo " -x days : Domain expiration interval (eg. if domain_ date < days)" >&2
echo "" >&2
}
### Evaluate the options passed on the command line
while getopts ae:f:i:jrhd:s:qx: option
do
case "${option}"
in
a) alarm=true;;
e) admin=${OPTARG};;
d) domain=${OPTARG};;
f) serverFile=$OPTARG;;
i) hostname=$OPTARG;;
j) json=true;;
r) human=true;;
s) whoisServer=$OPTARG;;
q) quiet=true;;
x) warnDays=$OPTARG;;
\?) usage
exit 1;;
esac
done
### Check to see if the whois binary exists
if [[ ! -f ${whois} ]]
then
echo "ERROR: The whois binary does not exist in ${whois}." >&2
echo " FIX: Please modify the \$whois variable in the program header." >&2
exit 1
fi
### Check to make sure a date utility is available
if [[ ! -f ${date} ]]
then
echo "ERROR: The date binary does not exist in ${date}." >&2
echo " FIX: Please modify the \$date variable in the program header." >&2
exit 1
fi
### Baseline the dates so we have something to compare to
month=$(${date} "+%m")
DAY=$(${date} "+%d")
YEAR=$(${date} "+%Y")
nowJulian=$(date2julian ${month#0} ${DAY#0} ${YEAR})
### If a HOST and PORT were passed on the cmdline, use those values
if $json
then
if [[ -f "${serverFile}" ]]
then
echo "{"
echo " \"data\":["
echo
while read domain
do
echo " { \"{#DOMAIN}\":\"${domain}\" },"
done < ${serverFile}
echo
echo " ]"
echo "}"
else
usage
exit 1
fi
else
if [[ "${domain}" != "" ]]
then
print_heading
check_domain_status "${domain}"
### If a file and a "-a" are passed on the command line, check all
### of the domains in the file to see if they are about to expire
elif [[ -f "${serverFile}" ]]
then
print_heading
while read domain
do
#sleep 30
check_domain_status "${domain}"
done < ${serverFile}
### There was an error, so print a detailed usage message and exit
else
usage
exit 1
fi
# Add an extra newline
if $human
then
echo
fi
fi
### Exit with a success indicator
exit 0
# vim: et ts=4 sw=4