1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_InfoCard

    17  * @subpackage Zend_InfoCard_Xml_Security

    18  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    19  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    20  * @version    $Id: EnvelopedSignature.php 20096 2010-01-06 02:05:09Z bkarwin $

    21  */

    22 

    23 /**

    24  * Zend_InfoCard_Xml_Security_Transform_Interface

    25  */

    26 require_once 'Zend/InfoCard/Xml/Security/Transform/Interface.php';

    27 

    28 /**

    29  * A object implementing the EnvelopedSignature XML Transform

    30  *

    31  * @category   Zend

    32  * @package    Zend_InfoCard

    33  * @subpackage Zend_InfoCard_Xml_Security

    34  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    35  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    36  */

    37 class Zend_InfoCard_Xml_Security_Transform_EnvelopedSignature

    38     implements Zend_InfoCard_Xml_Security_Transform_Interface

    39 {

    40     /**

    41      * Transforms the XML Document according to the EnvelopedSignature Transform

    42      *

    43      * @throws Zend_InfoCard_Xml_Security_Transform_Exception

    44      * @param string $strXMLData The input XML data

    45      * @return string the transformed XML data

    46      */

    47     public function transform($strXMLData)

    48     {

    49         $sxe = simplexml_load_string($strXMLData);

    50 

    51         if(!$sxe->Signature) {

    52             require_once 'Zend/InfoCard/Xml/Security/Transform/Exception.php';

    53             throw new Zend_InfoCard_Xml_Security_Transform_Exception("Unable to locate Signature Block for EnvelopedSignature Transform");

    54         }

    55 

    56         unset($sxe->Signature);

    57 

    58         return $sxe->asXML();

    59     }

    60 }