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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\authclient\signature;
use yii\base\BaseObject;
/**
* BaseMethod is a base class for the OAuth signature methods.
*
* @author Paul Klimov <klimov.paul@gmail.com>
* @since 2.0
*/
abstract class BaseMethod extends BaseObject
{
/**
* Return the canonical name of the Signature Method.
* @return string method name.
*/
abstract public function getName();
/**
* Generates OAuth request signature.
* @param string $baseString signature base string.
* @param string $key signature key.
* @return string signature string.
*/
abstract public function generateSignature($baseString, $key);
/**
* Verifies given OAuth request.
* @param string $signature signature to be verified.
* @param string $baseString signature base string.
* @param string $key signature key.
* @return bool success.
*/
public function verify($signature, $baseString, $key)
{
$expectedSignature = $this->generateSignature($baseString, $key);
if (empty($signature) || empty($expectedSignature)) {
return false;
}
return (strcmp($expectedSignature, $signature) === 0);
}
}