From: Phillip Gawlowski <cmdjackryan@...>
Date: 2007-04-19T22:48:28+09:00
Subject: Re: [src/oneliner] Getting the IP from an external rescource in ruby

James Edward Gray II wrote:
> On Apr 19, 2007, at 8:10 AM, mrpink wrote:
> 
>> just for fun I wanna share this oneliner which prints you the external 
>> IP on the screen :)
>>
>> require 'net/http'
>>
>> Net::HTTP.get_response(URI.parse('http://www.wieistmeineip.de')).body.scan(/^Ihre 
>> IP-Adresse ist.+/) { |ipadresse| puts 
>> ipadresse.sub(/^.+">/,'').sub(/<.+$/,'') }
> 
> Interesting.  I expected my code to be equivalent, but it gives a 
> different answer:
> 
> $ ruby -r resolv -e 'p Resolv.getaddress("http://www.wieistmeineip.de")'
> "212.19.62.76"
> 
> James Edward Gray II


If I may translate: the German parts into English:


Net::HTTP.get_response(URI.parse('http://www.whatismyip.com')).body.scan(/^Your 
WAN IP is.+/) { |ipadresse| puts ipadresse.sub(/^.+">/,'').sub(/<.+$/,'') }


The one liner resolves your external IP with the help of an external 
service.

A hint for mrpink: German is not widely spoken beyond Germany, Austria 
and Swiss, so it's a good idea to translate your output. ;)

-- 
Phillip "CynicalRyan" Gawlowski
http://cynicalryan.110mb.com/
http://clothred.rubyforge.org

Rule of Open-Source Programming #37:

Duplicate effort is inevitable. Live with it.