The UrlSigner class was designed to create tamper-proof URLs, that can only be generated and validated by parties that know the shared secret.
>> signer = UrlSigner.new('secret') => #<UrlSigner:0x1b0506c> >> signed_url = signer.sign("http://localhost/testfile.jpg") => "http://localhost/testfile_cd45e1a2.jpg" >> signer.valid?(signed_url) => true
gem sources -a gems.github.com
sudo gem install pkwde-url_signer
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