Rails - Jan 2008 - dynamically loaded SWFs - dimensions?

Anyone know a way to get the dimensions of a SWF using ruby on rails.
Similar php''s getImageSize() function that can read swf files.

i know about this for images; jpg, gif, png:
http://snippets.dzone.com/posts/show/805 from
http://www.ruby-forum.com/topic/64679

I need a solution for dynamically loaded SWF flash files that my users
will be uploading; without making them enter the dimensions for every
swf file. any sort of solution, such as a javascript one would be
great....

Anyone? help!!!!!!!!
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http://code.google.com/p/ruby-imagespec/source/checkout

a coworker of mine made this. its the only straightforward solution for 
reading swfs issue that i''ve found.
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