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@mrrcollins mrrcollins/domain-check
Created Jan 29, 2016

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Check expiration on domains.
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domain-check
#!/bin/bash
#
# Program: Domain Expiration Check <domain-check>
#
# Author: Matty < matty91 at gmail dot com >
#
# Current Version: 2.1
#
# Revision History:
# Version 2.1
# Bug fix for .com, .net, .us, .org -- Ryan Collins
# Version 2.0
# Bug fix for .org, .biz, info, and .ca -- Cameron and Jim
#
# 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: 28-Feb-2014
#
# 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"
# 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"
# Don't send emails by default (cmdline: -a)
ALARM="FALSE"
# Whois server to use (cmdline: -s)
WHOIS_SERVER="whois.internic.org"
# Location of system binaries
AWK="/usr/bin/awk"
WHOIS="/usr/bin/whois"
DATE="/bin/date"
CUT="/usr/bin/cut"
MAIL="/bin/mail"
# Place to stash temporary files
WHOIS_TMP="/var/tmp/whois.$$"
#############################################################################
# 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()
{
LOWER=`tolower $1`
case ${LOWER} 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: Converts a string to lower case
# Arguments:
# $1 -> String to convert to lower case
##################################################################
tolower()
{
LOWER=`echo ${1} | tr [A-Z] [a-z]`
echo $LOWER
}
##################################################################
# 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 ${DOMAIN} | cut -d '.' -f2 | tr '[A-Z]' '[a-z]'`"
fi
# Invoke whois to find the domain registrar and expiration date
#${WHOIS} -h ${WHOIS_SERVER} "=${1}" > ${WHOIS_TMP}
# Let whois select server
if [ "${TLDTYPE}" == "org" ];
then
${WHOIS} -h "whois.pir.org" "${1}" > ${WHOIS_TMP}
elif [ "${TLDTYPE}" == "in" ]; # India
then
${WHOIS} -h "whois.registry.in" "${1}" > ${WHOIS_TMP}
elif [ "${TLDTYPE}" == "uk" ]; # United Kingdom
then
${WHOIS} -h "whois.nic.uk" "${1}" > ${WHOIS_TMP}
elif [ "${TLDTYPE}" == "biz" ];
then
${WHOIS} -h "whois.neulevel.biz" "${1}" > ${WHOIS_TMP}
elif [ "${TLDTYPE}" == "info" ];
then
${WHOIS} -h "whois.afilias.info" "${1}" > ${WHOIS_TMP}
elif [ "${TLDTYPE}" == "jp" ]; # Japan
then
${WHOIS} -h "whois.jprs.jp" "${1}" > ${WHOIS_TMP}
elif [ "${TLDTYPE}" == "ca" ]; # Canada
then
${WHOIS} -h "whois.cira.ca" "${1}" > ${WHOIS_TMP}
elif [ "${TLDTYPE}" == "com" -o "${TLDTYPE}" == "net" -o "${TLDTYPE}" == "edu" ];
then
${WHOIS} -h ${WHOIS_SERVER} "=${1}" > ${WHOIS_TMP}
else
${WHOIS} "${1}" > ${WHOIS_TMP}
fi
# Parse out the expiration date and registrar -- uses the last registrar it finds
REGISTRAR=`cat ${WHOIS_TMP} | ${AWK} -F: '/Registrar:/ && $2 != "" { REGISTRAR=substr($2,2,17) } END { print REGISTRAR }'`
if [ "${TLDTYPE}" == "uk" ]; # for .uk domain
then
REGISTRAR=`cat ${WHOIS_TMP} | ${AWK} -F: '/Registrar:/ && $0 != "" { getline; REGISTRAR=substr($0,2,17) } END { print REGISTRAR }'`
elif [ "${TLDTYPE}" == "jp" ];
then
REGISTRAR=`cat ${WHOIS_TMP} | ${AWK} '/Registrant/ && $2 != "" { REGISTRAR=substr($2,1,17) } END { print REGISTRAR }'`
elif [ "${TLDTYPE}" == "org" ];
then
REGISTRAR=`cat ${WHOIS_TMP} | ${AWK} -F: '/Sponsoring Registrar:/ && $2 != "" { REGISTRAR=substr($2,2,17) } END { print REGISTRAR }'`
elif [ "${TLDTYPE}" == "info" ];
then
REGISTRAR=`cat ${WHOIS_TMP} | ${AWK} '/Registrar:/ && $2 != "" { REGISTRAR=substr($2,11,17) } END { print REGISTRAR }'`
elif [ "${TLDTYPE}" == "biz" ];
then
REGISTRAR=`cat ${WHOIS_TMP} | ${AWK} -F: '/Registrar:/ && $2 != "" { REGISTRAR=substr($2,20,17) } END { print REGISTRAR }'`
elif [ "${TLDTYPE}" == "ca" ];
then
REGISTRAR=`cat ${WHOIS_TMP} | ${AWK} -F: '/Registrar:/ && $0 != "" { getline; REGISTRAR=substr($0,24,17) } END { print REGISTRAR }'`
elif [ "${TLDTYPE}" == "us" ];
then
REGISTRAR=`cat ${WHOIS_TMP} | ${AWK} -F: '/Sponsoring Registrar:/ && $2 != "" { REGISTRAR=substr($2,25,17) } END { print REGISTRAR }'`
fi
# If the Registrar is NULL, then we didn't get any data
if [ "${REGISTRAR}" = "" ]
then
prints "$DOMAIN" "Unknown" "Unknown" "Unknown" "Unknown"
return
fi
# The whois Expiration data should resemble the following: "Expiration Date: 09-may-2008"
# for .in, .info, .org domains
if [ "${TLDTYPE}" == "in" -o "${TLDTYPE}" == "info" -o "${TLDTYPE}" == "org" ];
then
tdomdate=`cat ${WHOIS_TMP} | ${AWK} '/Expiry Date:/ { print $4 }'`
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 |cut -d'T' -f1`
DOMAINDATE=`echo $tday-$tmonth-$tyear`
elif [ "${TLDTYPE}" == "biz" ]; # for .biz domain
then
DOMAINDATE=`cat ${WHOIS_TMP} | awk '/Domain Expiration Date:/ { print $6"-"$5"-"$9 }'`
elif [ "${TLDTYPE}" == "us" ]; # for .us domain
then
DOMAINDATE=`cat ${WHOIS_TMP} | awk '/Domain Expiration Date:/ { print $6"-"$5"-"$9 }'`
elif [ "${TLDTYPE}" == "me" ]; # for .me domain
then
DOMAINDATE=`cat ${WHOIS_TMP} | awk '/Domain Expiration Date:/ { print $3 }' | cut -d ":" -f 2`
elif [ "${TLDTYPE}" == "uk" ]; # for .uk domain
then
DOMAINDATE=`cat ${WHOIS_TMP} | awk '/Renewal date:/ || /Expiry date:/ { print $3 }'`
elif [ "${TLDTYPE}" == "jp" ]; # for .jp 2010/04/30
then
tdomdate=`cat ${WHOIS_TMP} | 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-$tyear`
elif [ "${TLDTYPE}" == "ca" ]; # for .ca 2010/04/30
then
tdomdate=`cat ${WHOIS_TMP} | awk '/Expiry date/ { 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`
else # .com, .edu, .net and may work with others
DOMAINDATE=`cat ${WHOIS_TMP} | ${AWK} '/Expiration/ { print $NF }'`
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 [ ${DOMAINDIFF} -lt 0 ]
then
if [ "${ALARM}" = "TRUE" ]
then
echo "The domain ${DOMAIN} has expired!" \
| ${MAIL} -s "Domain ${DOMAIN} has expired!" ${ADMIN}
fi
prints ${DOMAIN} "Expired" "${DOMAINDATE}" "${DOMAINDIFF}" ${REGISTRAR}
elif [ ${DOMAINDIFF} -lt ${WARNDAYS} ]
then
if [ "${ALARM}" = "TRUE" ]
then
echo "The domain ${DOMAIN} will expire on ${DOMAINDATE}" \
| ${MAIL} -s "Domain ${DOMAIN} will expire in ${WARNDAYS}-days or less" ${ADMIN}
fi
prints ${DOMAIN} "Expiring" "${DOMAINDATE}" "${DOMAINDIFF}" "${REGISTRAR}"
else
prints ${DOMAIN} "Valid" "${DOMAINDATE}" "${DOMAINDIFF}" "${REGISTRAR}"
fi
}
####################################################
# Purpose: Print a heading with the relevant columns
# Arguments:
# None
####################################################
print_heading()
{
if [ "${QUIET}" != "TRUE" ]
then
printf "\n%-35s %-17s %-8s %-11s %-5s\n" "Domain" "Registrar" "Status" "Expires" "Days Left"
echo "----------------------------------- ----------------- -------- ----------- ---------"
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
# $5 -> Domain registrar
#####################################################################
prints()
{
if [ "${QUIET}" != "TRUE" ]
then
MIN_DATE=$(echo $3 | ${AWK} '{ print $1, $2, $4 }')
printf "%-35s %-17s %-8s %-11s %-5s\n" "$1" "$5" "$2" "$MIN_DATE" "$4"
fi
}
##########################################
# Purpose: Describe how the script works
# Arguments:
# None
##########################################
usage()
{
echo "Usage: $0 [ -e email ] [ -x expir_days ] [ -q ] [ -a ] [ -h ]"
echo " {[ -d domain_namee ]} || { -f domainfile}"
echo ""
echo " -a : Send a warning message through email "
echo " -d domain : Domain to analyze (interactive mode)"
echo " -e email address : Email address to send expiration notices"
echo " -f domain file : File with a list of domains"
echo " -h : Print this screen"
echo " -s whois server : Whois sever to query for information"
echo " -q : Don't print anything on the console"
echo " -x days : Domain expiration interval (eg. if domain_date < days)"
echo ""
}
### Evaluate the options passed on the command line
while getopts ae:f:hd:s:qx: option
do
case "${option}"
in
a) ALARM="TRUE";;
e) ADMIN=${OPTARG};;
d) DOMAIN=${OPTARG};;
f) SERVERFILE=$OPTARG;;
s) WHOIS_SERVER=$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} ."
echo " FIX: Please modify the \$WHOIS variable in the program header."
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 ${DATE} ."
echo " FIX: Please modify the \$DATE variable in the program header."
exit 1
fi
### Baseline the dates so we have something to compare to
MONTH=$(${DATE} "+%m")
DAY=$(${DATE} "+%d")
YEAR=$(${DATE} "+%Y")
NOWJULIAN=$(date2julian ${MONTH#0} ${DAY#0} ${YEAR})
### Touch the files prior to using them
touch ${WHOIS_TMP}
### If a HOST and PORT were passed on the cmdline, use those values
if [ "${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
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
echo
### Remove the temporary files
rm -f ${WHOIS_TMP}
### Exit with a success indicator
exit 0
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