<?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_InfoCard * @subpackage Zend_InfoCard_Xml_Security * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com) * @license    http://framework.zend.com/license/new-bsd     New BSD License * @version    $Id: Transform.php 8064 2008-02-16 10:58:39Z thomas $ * @author     John Coggeshall <john@zend.com> *//** * Zend_Loader */require_once 'Zend/Loader.php';/** * A class to create a transform rule set based on XML URIs and then apply those rules * in the correct order to a given XML input * * @category   Zend * @package    Zend_InfoCard * @subpackage Zend_InfoCard_Xml_Security * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com) * @license    http://framework.zend.com/license/new-bsd     New BSD License * @author     John Coggeshall <john@zend.com> */class Zend_InfoCard_Xml_Security_Transform{    /**     * A list of transforms to apply     *     * @var array     */    protected $_transformList = array();    /**     * Returns the name of the transform class based on a given URI     *     * @throws Zend_InfoCard_Xml_Security_Exception     * @param string $uri The transform URI     * @return string The transform implementation class name     */    protected function _findClassbyURI($uri)    {        switch($uri) {            case 'http://www.w3.org/2000/09/xmldsig#enveloped-signature':                return 'Zend_InfoCard_Xml_Security_Transform_EnvelopedSignature';            case 'http://www.w3.org/2001/10/xml-exc-c14n#':                return 'Zend_InfoCard_Xml_Security_Transform_XmlExcC14N';            default:                throw new Zend_InfoCard_Xml_Security_Exception("Unknown or Unsupported Transformation Requested");        }    }    /**     * Add a Transform URI to the list of transforms to perform     *     * @param string $uri The Transform URI     * @return Zend_InfoCard_Xml_Security_Transform     */    public function addTransform($uri)    {        $class = $this->_findClassbyURI($uri);        $this->_transformList[] = array('uri' => $uri,                                        'class' => $class);        return $this;    }    /**     * Return the list of transforms to perform     *     * @return array The list of transforms     */    public function getTransformList()    {        return $this->_transformList;    }    /**     * Apply the transforms in the transform list to the input XML document     *     * @param string $strXmlDocument The input XML     * @return string The XML after the transformations have been applied     */    public function applyTransforms($strXmlDocument)    {        foreach($this->_transformList as $transform) {            Zend_Loader::loadClass($transform['class']);            $transformer = new $transform['class'];            // We can't really test this check because it would require logic changes in the component itself            // @codeCoverageIgnoreStart            if(!($transformer instanceof Zend_InfoCard_Xml_Security_Transform_Interface)) {                throw new Zend_InfoCard_Xml_Security_Exception("Transforms must implement the Transform Interface");            }            // @codeCoverageIgnoreEnd            $strXmlDocument = $transformer->transform($strXmlDocument);        }        return $strXmlDocument;    }}