From: "Peña, Botp" <botp@...>
Date: 2008-09-11T17:01:26+09:00
Subject: Re: How to check if a webpage exists

From: Davide Benini [mailto:nutsmuggler@hotmail.com] 
# ...
# None of this works.
# Which is the proper syntax?

compare,

> require 'open-uri'
=> false
> begin
*   open "http://www.google.com", :proxy=>true
>   p "i'm ok"   #<-- ok codes here
> rescue
>   p "sorry can't do"  #<-- not ok codes here
> end
"i'm ok"
=> nil

> begin
*   open "http://this.does.not.exist.com", :proxy=>true
>   p "i'm ok"
> rescue => e
>   p "sorry can't do"
>   p "error is: #{e}"
> end
"sorry can't do"
"error is: 503 Service Unavailable"
=> nil