117 lines
3.7 KiB
PHP
117 lines
3.7 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_InfoCard
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* @subpackage Zend_InfoCard_Xml_Security
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Transform.php 9094 2008-03-30 18:36:55Z thomas $
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*/
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/**
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* Zend_Loader
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*/
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require_once 'Zend/Loader.php';
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/**
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* A class to create a transform rule set based on XML URIs and then apply those rules
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* in the correct order to a given XML input
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*
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* @category Zend
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* @package Zend_InfoCard
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* @subpackage Zend_InfoCard_Xml_Security
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_InfoCard_Xml_Security_Transform
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{
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/**
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* A list of transforms to apply
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*
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* @var array
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*/
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protected $_transformList = array();
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/**
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* Returns the name of the transform class based on a given URI
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*
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* @throws Zend_InfoCard_Xml_Security_Exception
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* @param string $uri The transform URI
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* @return string The transform implementation class name
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*/
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protected function _findClassbyURI($uri)
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{
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switch($uri) {
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case 'http://www.w3.org/2000/09/xmldsig#enveloped-signature':
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return 'Zend_InfoCard_Xml_Security_Transform_EnvelopedSignature';
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case 'http://www.w3.org/2001/10/xml-exc-c14n#':
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return 'Zend_InfoCard_Xml_Security_Transform_XmlExcC14N';
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default:
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throw new Zend_InfoCard_Xml_Security_Exception("Unknown or Unsupported Transformation Requested");
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}
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}
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/**
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* Add a Transform URI to the list of transforms to perform
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*
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* @param string $uri The Transform URI
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* @return Zend_InfoCard_Xml_Security_Transform
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*/
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public function addTransform($uri)
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{
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$class = $this->_findClassbyURI($uri);
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$this->_transformList[] = array('uri' => $uri,
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'class' => $class);
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return $this;
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}
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/**
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* Return the list of transforms to perform
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*
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* @return array The list of transforms
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*/
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public function getTransformList()
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{
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return $this->_transformList;
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}
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/**
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* Apply the transforms in the transform list to the input XML document
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*
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* @param string $strXmlDocument The input XML
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* @return string The XML after the transformations have been applied
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*/
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public function applyTransforms($strXmlDocument)
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{
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foreach($this->_transformList as $transform) {
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Zend_Loader::loadClass($transform['class']);
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$transformer = new $transform['class'];
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// We can't really test this check because it would require logic changes in the component itself
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// @codeCoverageIgnoreStart
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if(!($transformer instanceof Zend_InfoCard_Xml_Security_Transform_Interface)) {
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throw new Zend_InfoCard_Xml_Security_Exception("Transforms must implement the Transform Interface");
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}
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// @codeCoverageIgnoreEnd
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$strXmlDocument = $transformer->transform($strXmlDocument);
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}
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return $strXmlDocument;
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}
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}
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