OAuth/src/GaryJones/OAuth/SignatureMethod.php

42 lines
1.1 KiB
PHP

<?php
namespace GaryJones\OAuth;
/**
* A class for implementing a Signature Method
* See section 9 ("Signing Requests") in the spec
*/
abstract class SignatureMethod
{
/**
* Needs to return the name of the Signature Method (ie HMAC-SHA1)
* @return string
*/
abstract public function getName();
/**
* Build up the signature
* NOTE: The output of this function MUST NOT be urlencoded.
* the encoding is handled in OAuthRequest when the final
* request is serialized
* @param OAuthRequest $request
* @param OAuthConsumer $consumer
* @param OAuthToken $token
* @return string
*/
abstract public function buildSignature($request, $consumer, $token);
/**
* Verifies that a given signature is correct
* @param OAuthRequest $request
* @param OAuthConsumer $consumer
* @param OAuthToken $token
* @param string $signature
* @return bool
*/
public function checkSignature($request, $consumer, $token, $signature)
{
$built = $this->buildSignature($request, $consumer, $token);
return $built == $signature;
}
}