title: OAuth signature check only by url w/o anything else?
body: <p>Is it possible that I just verify oauth_signature only via a url?</p>
  
  <p>I have OAuth consumer secret, but i <strong>don't</strong> have token secret, I'm in a position like man-in-middle, but i don't want to change anything, but just verify whether this oauth request is valid or not. All what i get is a simple url containing standard things like:</p>
  
  <ul>
  <li>oauth_consumer_key</li>
  <li>oauth_token</li>
  <li>oauth_signature_method (always HMAC-SHA1)</li>
  <li>oauth_timestamp</li>
  <li>oauth_nonce</li>
  <li>oauth_signature.</li>
  </ul>
  
  <p>Can i use these thing to verify?</p>