Rails - Jun 2006 - Absolutize URLs in a string

I wonder - do we have some helper/processor/gem to automatically  
convert all URLs in a passed string to their canonical equivalent -  
i.e. with the protocol, host and such prepended based on the Rails  
environment. Super-duper infty for RSS feeds (I hate their  
requirement for canonical URLs everywhere).
--
Julian ''Julik'' Tarkhanov
please send all personal mail to
me at julik.nl

Julian ''Julik'' Tarkhanov wrote:
> I wonder - do we have some helper/processor/gem to automatically
> convert all URLs in a passed string to their canonical equivalent -
> i.e. with the protocol, host and such prepended based on the Rails
> environment. Super-duper infty for RSS feeds (I hate their
> requirement for canonical URLs everywhere).
> --
> Julian ''Julik'' Tarkhanov
> please send all personal mail to
> me at julik.nl
I''m not sure about strings, but the url_helpers have an :only_path 
parameter that should do what you want.  The following line will give a 
url with host protocol and port.

  url_for :action => ''foo'', :only_path => false

You can even set up your own defaults for the url helpers.  Add the 
default_url_options method to your application_controller

  def default_url_options(options)
    {:only_path => false}
  end

All urls in your entire app will now be absolute, unless you pass in 
:only_path=>true when creating the url

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On 4-jun-2006, at 20:17, Alex Wayne wrote:
>
> I''m not sure about strings, but the url_helpers have an :only_path
> parameter that should do what you want.  The following line will  
> give a
> url with host protocol and port.
I am talking about URLs typed in by users, and relating to the site  
root - as in a Markdown-formatted entry:

    We are proud to announce our new [bodily parts enlargment  
contraption](/products/magic-device).

After being processed with Markdown I would like to process all href=  
and src= attributes so that they include the host, port and protocol.

--
Julian ''Julik'' Tarkhanov
please send all personal mail to
me at julik.nl

On 4-jun-2006, at 21:14, Julian ''Julik'' Tarkhanov
wrote:
>
> I am talking about URLs typed in by users, and relating to the site  
> root - as in a Markdown-formatted entry:
Ok, thanks to some ruby-foo of Mauricio Fernandez :-P I don''t have to  
write this myself, all rejoice

http://eigenclass.org/hiki.rb?Turning+Hiki+into+a+simple+CMS

require ''cgi''
require ''uri''

def rss_make_content_relative_to(htmlcontent, root)
  
htmlcontent.gsub(/(<(img|a)\b[^>]*(src|href)=)(["''])(.*?)\4/)
do
     md = $~

     url = URI.parse CGI.unescapeHTML(md[5])

     if url.relative? && url.path !~ /^\//
       md[1] + md[4] + root + "/" + md[5] + md[4]
     else
       md.to_s
     end
   end
end



--
Julian ''Julik'' Tarkhanov
please send all personal mail to
me at julik.nl