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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_Controller
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 
 /**
  * Zend_XmlRpc_Value
  */
 // require_once 'Zend/XmlRpc/Value.php';
 
 /**
  * Zend_XmlRpc_Fault
  */
 // require_once 'Zend/XmlRpc/Fault.php';
 
 /** @see Zend_Xml_Security */
 // require_once 'Zend/Xml/Security.php';
 
 /** @see Zend_Xml_Exception */
 // require_once 'Zend/Xml/Exception.php';
 
 /**
  * XmlRpc Response
  *
  * Container for accessing an XMLRPC return value and creating the XML response.
  *
  * @category Zend
  * @package  Zend_XmlRpc
  * @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 $Id$
  */
 class Zend_XmlRpc_Response
 {
     /**
      * Return value
      * @var mixed
      */
     protected $_return;
 
     /**
      * Return type
      * @var string
      */
     protected $_type;
 
     /**
      * Response character encoding
      * @var string
      */
     protected $_encoding = 'UTF-8';
 
     /**
      * Fault, if response is a fault response
      * @var null|Zend_XmlRpc_Fault
      */
     protected $_fault = null;
 
     /**
      * Constructor
      *
      * Can optionally pass in the return value and type hinting; otherwise, the
      * return value can be set via {@link setReturnValue()}.
      *
      * @param mixed $return
      * @param string $type
      * @return void
      */
     public function __construct($return = null, $type = null)
     {
         $this->setReturnValue($return, $type);
     }
 
     /**
      * Set encoding to use in response
      *
      * @param string $encoding
      * @return Zend_XmlRpc_Response
      */
     public function setEncoding($encoding)
     {
         $this->_encoding = $encoding;
         Zend_XmlRpc_Value::setEncoding($encoding);
         return $this;
     }
 
     /**
      * Retrieve current response encoding
      *
      * @return string
      */
     public function getEncoding()
     {
         return $this->_encoding;
     }
 
     /**
      * Set the return value
      *
      * Sets the return value, with optional type hinting if provided.
      *
      * @param mixed $value
      * @param string $type
      * @return void
      */
     public function setReturnValue($value, $type = null)
     {
         $this->_return = $value;
         $this->_type = (string) $type;
     }
 
     /**
      * Retrieve the return value
      *
      * @return mixed
      */
     public function getReturnValue()
     {
         return $this->_return;
     }
 
     /**
      * Retrieve the XMLRPC value for the return value
      *
      * @return Zend_XmlRpc_Value
      */
     protected function _getXmlRpcReturn()
     {
         return Zend_XmlRpc_Value::getXmlRpcValue($this->_return);
     }
 
     /**
      * Is the response a fault response?
      *
      * @return boolean
      */
     public function isFault()
     {
         return $this->_fault instanceof Zend_XmlRpc_Fault;
     }
 
     /**
      * Returns the fault, if any.
      *
      * @return null|Zend_XmlRpc_Fault
      */
     public function getFault()
     {
         return $this->_fault;
     }
 
     /**
      * Load a response from an XML response
      *
      * Attempts to load a response from an XMLRPC response, autodetecting if it
      * is a fault response.
      *
      * @param string $response
      * @return boolean True if a valid XMLRPC response, false if a fault
      * response or invalid input
      */
     public function loadXml($response)
     {
         if (!is_string($response)) {
             $this->_fault = new Zend_XmlRpc_Fault(650);
             $this->_fault->setEncoding($this->getEncoding());
             return false;
         }
 
         try {
             $xml = Zend_Xml_Security::scan($response);
         } catch (Zend_Xml_Exception $e) {    
             // Not valid XML
             $this->_fault = new Zend_XmlRpc_Fault(651);
             $this->_fault->setEncoding($this->getEncoding());
             return false;
         }
 
         if (!empty($xml->fault)) {
             // fault response
             $this->_fault = new Zend_XmlRpc_Fault();
             $this->_fault->setEncoding($this->getEncoding());
             $this->_fault->loadXml($response);
             return false;
         }
 
         if (empty($xml->params)) {
             // Invalid response
             $this->_fault = new Zend_XmlRpc_Fault(652);
             $this->_fault->setEncoding($this->getEncoding());
             return false;
         }
 
         try {
             if (!isset($xml->params) || !isset($xml->params->param) || !isset($xml->params->param->value)) {
                 // require_once 'Zend/XmlRpc/Value/Exception.php';
                 throw new Zend_XmlRpc_Value_Exception('Missing XML-RPC value in XML');
             }
             $valueXml = $xml->params->param->value->asXML();
             $value = Zend_XmlRpc_Value::getXmlRpcValue($valueXml, Zend_XmlRpc_Value::XML_STRING);
         } catch (Zend_XmlRpc_Value_Exception $e) {
             $this->_fault = new Zend_XmlRpc_Fault(653);
             $this->_fault->setEncoding($this->getEncoding());
             return false;
         }
 
         $this->setReturnValue($value->getValue());
         return true;
     }
 
     /**
      * Return response as XML
      *
      * @return string
      */
     public function saveXml()
     {
         $value = $this->_getXmlRpcReturn();
         $generator = Zend_XmlRpc_Value::getGenerator();
         $generator->openElement('methodResponse')
                   ->openElement('params')
                   ->openElement('param');
         $value->generateXml();
         $generator->closeElement('param')
                   ->closeElement('params')
                   ->closeElement('methodResponse');
 
         return $generator->flush();
     }
 
     /**
      * Return XML response
      *
      * @return string
      */
     public function __toString()
     {
         return $this->saveXML();
     }
 }