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 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Service_ShortUrl
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id: $
  */
 
 /**
  * @see Zend_Service_ShortUrl_AbstractShortener
  */
 // require_once 'Zend/Service/ShortUrl/AbstractShortener.php';
 
 /**
  * TinyUrl.com API implementation
  *
  * @category   Zend
  * @package    Zend_Service_ShortUrl
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Service_ShortUrl_TinyUrlCom extends Zend_Service_ShortUrl_AbstractShortener
 {
     /**
      * Base URI of the service
      *
      * @var string
      */
     protected $_baseUri = 'http://tinyurl.com';
 
     /**
      * This function shortens long url
      *
      * @param string $url URL to Shorten
      * @throws Zend_Service_ShortUrl_Exception When URL is not valid
      * @return string New URL
      */
     public function shorten($url)
     {
         $this->_validateUri($url);
 
         $serviceUri = 'http://tinyurl.com/api-create.php';
 
         $this->getHttpClient()->setUri($serviceUri);
         $this->getHttpClient()->setParameterGet('url', $url);
 
         $response = $this->getHttpClient()->request();
 
         return $response->getBody();
     }
 
     /**
      * Reveals target for short URL
      *
      * @param string $shortenedUrl URL to reveal target of
      * @throws Zend_Service_ShortUrl_Exception When URL is not valid or is not shortened by this service
      * @return string
      */
     public function unshorten($shortenedUrl)
     {
         $this->_validateUri($shortenedUrl);
 
         $this->_verifyBaseUri($shortenedUrl);
 
         //TinyUrl.com does not have an API for that, but we can use preview feature
         //we need new Zend_Http_Client
         $this->setHttpClient(new Zend_Http_Client());
 
         $this->getHttpClient()
              ->setCookie('preview', 1)
              ->setUri($shortenedUrl);
 
         //get response
         $response = $this->getHttpClient()->request();
 
         // require_once 'Zend/Dom/Query.php';
         $dom = new Zend_Dom_Query($response->getBody());
 
         //find the redirect url link
         $results = $dom->query('a#redirecturl');
 
         //get href
         $originalUrl = $results->current()->getAttribute('href');
 
         return $originalUrl;
     }
 }