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BASH GeoIP Lookup script for use with new Maxmind MMDB database files
#!/bin/bash
#
# By: Brady Shea - 10FEB2020
#
# Usage (ip4 only):
# geoip2lookup IP_ADDRESS
#
# ** Install GeoIP Tool and Updater **
#
# sudo add-apt-repository ppa:maxmind/ppa
# sudo apt install libmaxminddb0 libmaxminddb-dev mmdb-bin geoipupdate
#
# * Review: https://dev.maxmind.com/geoip/geoip2/geolite2/ and
# sign up for a free license.
# * Edit your "/etc/GeoIP.conf":
# * Make sure you have the proper downloads location set:
# "EditionIDs GeoLite2-Country GeoLite2-City GeoLite2-ASN"
# * Make sure you have added the 'AccountID' and 'LicenseKey'
#
# Then finally execute:
#
# sudo geoipupdate
#
# Make sure you see new files in "/usr/share/GeoIP". If not, check
# the 'DatabaseDirectory' directive in your config/.conf above.
# A cron job will also be created to periodocally run the updater.
#
# Notes:
# * The valid_ip() function is taken from:
# https://www.linuxjournal.com/content/validating-ip-address-bash-script
# * Updated Legacy files can be found here: https://www.miyuru.lk/geoiplegacy
# - this script uses mmdb (only), though.
# * The country file is not currently used in this script. It can be removed
# from your downloads in the .conf file above if needed.
#
#####################################################################
# Functions
#####################################################################
function process_quoted () {
# Process all given tokens with spaces as one func argument= $*
grab_quoted=`sed -E 's/.*"(.*)".*/\1/' <<< "$*"`
}
function process_unquoted () {
grab_first_word=${1% *}
}
function valid_ip()
{
local ip=$1
local stat=1
if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
OIFS=$IFS
IFS='.'
ip=($ip)
IFS=$OIFS
[[ ${ip[0]} -le 255 && ${ip[1]} -le 255 && ${ip[2]} -le 255 && ${ip[3]} -le 255 ]]
stat=$?
fi
return $stat
}
#####################################################################
# Validate
#####################################################################
# No argument given?
if [ -z "$1" ]; then
printf "\nUsage:\n\n geoip2lookup IP4_ADDRESS\n\n"
exit 1
fi
# Check ip validity.
if ! valid_ip "$1"; then
printf "\nThis is not a valid IP address. Exiting.\n\n"
exit 1
fi
#####################################################################
# Execute
#####################################################################
printf "\nLooking up IP in the installed GeoIP database..\n"
#file_country="/usr/share/GeoIP/GeoLite2-Country.mmdb"
file_city="/usr/share/GeoIP/GeoLite2-City.mmdb"
file_asn="/usr/share/GeoIP/GeoLite2-ASN.mmdb"
city_string=`mmdblookup --file ${file_city} --ip "$1" city names en 2>/dev/null`
subdivision_string=`mmdblookup --file ${file_city} --ip "$1" subdivisions 0 names en 2>/dev/null`
country_string=`mmdblookup --file ${file_city} --ip "$1" country names en 2>/dev/null`
continent_string=`mmdblookup --file ${file_city} --ip "$1" continent names en 2>/dev/null`
location_lat_string=`mmdblookup --file ${file_city} --ip "$1" location latitude 2>/dev/null`
location_lon_string=`mmdblookup --file ${file_city} --ip "$1" location longitude 2>/dev/null`
location_metrocode_string=`mmdblookup --file ${file_city} --ip "$1" location metro_code 2>/dev/null`
location_timezone_string=`mmdblookup --file ${file_city} --ip "$1" location time_zone 2>/dev/null`
postal_string=`mmdblookup --file ${file_city} --ip "$1" postal code 2>/dev/null`
asn_number_string=`mmdblookup --file ${file_asn} --ip "$1" autonomous_system_number 2>/dev/null`
asn_name_string=`mmdblookup --file ${file_asn} --ip "$1" autonomous_system_organization 2>/dev/null`
process_quoted $city_string && city=${grab_quoted}
process_quoted $subdivision_string && subdivisions=${grab_quoted}
process_quoted $country_string && country=${grab_quoted}
process_quoted $continent_string && continent=${grab_quoted}
process_unquoted $location_lat_string && location_lat=${grab_first_word}
process_unquoted $location_lon_string && location_lon=${grab_first_word}
process_unquoted $location_metrocode_string && location_code=${grab_first_word}
process_quoted $location_timezone_string && location_tz=${grab_quoted}
process_quoted $postal_string && postal=${grab_quoted}
process_unquoted $asn_number_string && asn_number=${grab_first_word}
process_quoted $asn_name_string && asn_name=${grab_quoted}
printf "
City: ${city}
Territory: ${subdivisions}
Country: ${country}
Continent: ${continent}
Location (approx): ${location_lat},${location_lon}
Metro Code: ${location_code}
Timezone: ${location_tz}
Postal Code: ${postal}
ASN Number: ${asn_number}
ASN Organization: ${asn_name}
\n"
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