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moo, 2007-07-07 15:29


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#!rst ==============================
ip based geographic lookups... ==============================

-----------------
Module: mod_geoip
-----------------

.. contents:: Table of Contents

Requirements ============

:Packages: GeoIP C API & Library (http://www.maxmind.com/download/geoip/api/c/)

Overview ============

mod_geoip is a module for fast ip/location lookups. It uses MaxMind GeoIP / GeoCity databases.
If the ip was found in the database the module sets the appropriate environments variables to the request, thus making other modules/fcgi be informed.

.. note::

Currently only country/city databases are supported because they have a free version that i can test.

Installation ============

1) Download mod_geoip.c (http://trac.lighttpd.net/trac/attachment/wiki/Docs/ModGeoip/mod_geoip.c)
2) Copy mod_geoip.c into lighttpd src directory.
3) Edit your src/Makefile.am and add this after the last module:

::

lib_LTLIBRARIES += mod_geoip.la
mod_geoip_la_SOURCES = mod_geoip.c
mod_geoip_la_LDFLAGS = -module -export-dynamic -avoid-version -no-undefined
mod_geoip_la_LIBADD = $(common_libadd) -lGeoIP

4) Go back to lighttpd root directory and first do: aclocal && automake && autoconf, after that do: make clean; ./configure --enable-maintainer-mode; make; make install
Note: the command of 'make clean' gives error on Fedora 4 and may not be necessary to compile properly. [j lightstone//GlobalAdSales.company]

5) Make sure /usr/local/lib is in your ld.so.conf file and rebuld the ld database (using: ldconfig).

6) Add to the config file server.modules = ("mod_geoip") [j lightstone//GlobalAdSales.company]

Configuration Options ========================

mod_geoip uses two configuration options.

1) geoip.db-filename = <path to the geoip or geocity database>
2) geoip.memory-cache = <enable|disable> : default disabled

if enabled, mod_geoip will load the database binary file to
memory for very fast lookups. the only penalty is memory usage.

.. note::

mod_geoip will determine the database type automatically so if you enter GeoCity databse path it will load GeoCity Env.

Environment ===========

Every database sets it's own ENV:

GeoIP (Country):
----------------

::

GEOIP_COUNTRY_CODE
GEOIP_COUNTRY_CODE3
GEOIP_COUNTRY_NAME

GeoCity:
--------

::

GEOIP_COUNTRY_CODE
GEOIP_COUNTRY_CODE3
GEOIP_COUNTRY_NAME
GEOIP_CITY_NAME
GEOIP_CITY_POSTAL_CODE
GEOIP_CITY_LATITUDE
GEOIP_CITY_LONG_LATITUDE
GEOIP_CITY_DMA_CODE
GEOIP_CITY_AREA_CODE

Examples ========

mod_geoip + php
---------------

when using fastcgi (not only php) you can access mod_geoip env and do as you please. this example just prints all mod_geoip envs to the client, html.

Config-file ::

geoip.db-filename = "/your-geoip-db-path/GeoCityLite.dat" 
geoip.memory-cache = "enable"

index.php ::

<?php
$country_code = $_SERVER['GEOIP_COUNTRY_CODE'];
$country_code3 = $_SERVER['GEOIP_COUNTRY_CODE3'];
$country_name = $_SERVER['GEOIP_COUNTRY_NAME'];
$city_region = $_SERVER['GEOIP_CITY_REGION'];
$city_name = $_SERVER['GEOIP_CITY_NAME'];
$city_postal_code = $_SERVER['GEOIP_CITY_POSTAL_CODE'];
$city_latitude = $_SERVER['GEOIP_CITY_LATITUDE'];
$city_long_latitude = $_SERVER['GEOIP_CITY_LONG_LATITUDE'];
$city_dma_code = $_SERVER['GEOIP_CITY_DMA_CODE'];
$city_area_code = $_SERVER['GEOIP_CITY_AREA_CODE'];
echo "&lt;html&gt;\n&lt;body&gt;\n\t&lt;br&gt;\n";
echo 'Country Code: ' . $country_code . '&lt;br&gt;';
echo 'Country Code 3: ' . $country_code3 . '&lt;br&gt;';
echo 'Country Name: ' . $country_name . '&lt;br&gt;';
echo '&lt;br&gt;';
echo 'City Region: ' . $city_region . '&lt;br&gt;';
echo 'City Name: ' . $city_name . '&lt;br&gt;';
echo 'City Postal Code: ' . $city_postal_code . '&lt;br&gt;';
echo 'City Latitude: ' . $city_latitude . '&lt;br&gt;';
echo 'City Long Latitude: ' . $city_long_latitude . '&lt;br&gt;';
echo 'City DMA Code: ' . $city_dma_code . '&lt;br&gt;';
echo 'City Area Code: ' . $city_area_code . '&lt;br&gt;';
echo "&lt;/body&gt;\n&lt;/html&gt;";
?>

country based redirect
----------------------

Config-file ::

$HTTP["host"] =~ "www.domain.com" {
url.rewrite = ( "" => "/redirect.php")
}

redirect.php ::

<?php
$country_code = $_SERVER['GEOIP_COUNTRY_CODE'];
header ('Location: http://&#39; . $country_code . '.domain.com/');
?>

.. note::

Currently it is not possible to redirect based on mod_geoip directly in lighttpd config file. But i believe with the     relase of lighttpd mod_magnet it would be. (mod_magnet will be available in lighttpd 1.4.12+)

Downloads =========
mod_geoip.c (http://trac.lighttpd.net/trac/attachment/wiki/Docs/ModGeoip/mod_geoip.c)
}}}

Updated by moo about 12 years ago · 14 revisions