Rails - Mar 2006 - Check whether externam URL is valid?

Hey,

I have users entering URLs into my app, is there anyway in which I can 
check to see if the URLs actually point to something before saving the 
user input? Maybe a kind of ''ping''-action that returns true on
success?

(btw: does anyone of a tentative release date for Rails1.1? I''ve been 
slobbering all over my RailsRecipes book and I can''t wait! Also, Scott 
Raymond''s compiled a list of awesome stuff that''ll be
incorporated into
the next release. . . link on LoudThinking.Com)


Lots of Thanks,
Gustav
gustav@hamburgerrobot.com

-- 
Posted via http://www.ruby-forum.com/.

mmm...Externam should read External :) ''suppose you noticed.

Thanks,
Gustav

-- 
Posted via http://www.ruby-forum.com/.

Net::HTTP looks like your best shot.

require ''net/http''
Net::HTTP.start(''www.something.com'') do |http|
   response = http.get(''/index.html'')
   p response.code
end

Check acceptable response codes here: http://www.w3.org/Protocols/ 
rfc2616/rfc2616-sec10.html

-John

--
John Smilanick
Computing Staff - Webmaster
Kavli Institute for Theoretical Physics
University of California, Santa Barbara
jsmilani@kitp.ucsb.edu
(805) 893-6307


On Mar 14, 2006, at 2:32 PM, Gustav wrote:
> Hey,
>
> I have users entering URLs into my app, is there anyway in which I can
> check to see if the URLs actually point to something before saving the
> user input? Maybe a kind of ''ping''-action that returns
true on
> success?
>
> (btw: does anyone of a tentative release date for Rails1.1? I''ve
been
> slobbering all over my RailsRecipes book and I can''t wait! Also,
Scott
> Raymond''s compiled a list of awesome stuff that''ll be
incorporated
> into
> the next release. . . link on LoudThinking.Com)
>
>
> Lots of Thanks,
> Gustav
> gustav@hamburgerrobot.com
>
> -- 
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
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Hey John,

That only works for valid URL''s. It doesn''t alert you if the
URL isn''t
there. I''m not sure how to check that?

I''ve tried your code with a check on the response.

unless response == ''200''
  p ''Site is down''
else
  p ''Found it!''
end

I get a "SocketError: getaddrinfo: No address associated with
nodename", which isn''t checkable to my knowledge.

Any ideas?
Thanks,
Clint

On 3/14/06, John Smilanick <jsmilani@kitp.ucsb.edu>
wrote:
> Net::HTTP looks like your best shot.
>
> require ''net/http''
> Net::HTTP.start(''www.something.com'') do |http|
>   response = http.get(''/index.html'')
>   p response.code
> end
>