About

Rack::GeoIPCountry uses the geoip gem and the GeoIP database to lookup the country of a request by its IP address.

The country data is then passed to the application as custom X_GEOIP_* headers. You can use the included Mapping class to trigger lookup only for certain requests (matching the given prefix).

Usage

The database can be downloaded from:
http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz

Usage:
use Rack::GeoIPCountry, :db => “path/to/GeoIP.dat”

By default all requests are looked up and the X_GEOIP_* headers are added to the request
The headers can then be read in the application
The country name is added to the request header as X_GEOIP_COUNTRY, eg:
X_GEOIP_COUNTRY: United Kingdom

The full set of GEOIP request headers is below:
X_GEOIP_COUNTRY_ID – The GeoIP country-ID as an integer, if not found set to 0
X_GEOIP_COUNTRY_CODE – The ISO3166-1 two-character country code, if not found set to “—”
X_GEOIP_COUNTRY_CODE3 – The ISO3166-2 three-character country code, if not found set to “—”
X_GEOIP_COUNTRY – The ISO3166 English-language name of the country, if not found set to N/A
X_GEOIP_CONTINENT – The two-character continent code, if not found set to “—”

You can use the included Mapping class to trigger lookup only for certain requests by specifying matching path prefix in options, eg:
use Rack::GeoIPCountry::Mapping, :prefix => ‘/video_tracking’
The above will lookup IP addresses only for requests matching /video_tracking etc.

MIT License – Karol Hosiawa (hosiawak at gmail.com)