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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_Amf
  * @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_Amf_Constants */
 // require_once 'Zend/Amf/Constants.php';
 
 /** @see Zend_Amf_Parse_OutputStream */
 // require_once 'Zend/Amf/Parse/OutputStream.php';
 
 /** @see Zend_Amf_Parse_Amf0_Serializer */
 // require_once 'Zend/Amf/Parse/Amf0/Serializer.php';
 
 /**
  * Handles converting the PHP object ready for response back into AMF
  *
  * @package    Zend_Amf
  * @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_Amf_Response
 {
     /**
      * @var int Object encoding for response
      */
     protected $_objectEncoding = 0;
 
     /**
      * Array of Zend_Amf_Value_MessageBody objects
      * @var array
      */
     protected $_bodies = array();
 
     /**
      * Array of Zend_Amf_Value_MessageHeader objects
      * @var array
      */
     protected $_headers = array();
 
     /**
      * @var Zend_Amf_Parse_OutputStream
      */
     protected $_outputStream;
 
     /**
      * Instantiate new output stream and start serialization
      *
      * @return Zend_Amf_Response
      */
     public function finalize()
     {
         $this->_outputStream = new Zend_Amf_Parse_OutputStream();
         $this->writeMessage($this->_outputStream);
         return $this;
     }
 
     /**
      * Serialize the PHP data types back into Actionscript and
      * create and AMF stream.
      *
      * @param  Zend_Amf_Parse_OutputStream $stream
      * @return Zend_Amf_Response
      */
     public function writeMessage(Zend_Amf_Parse_OutputStream $stream)
     {
         $objectEncoding = $this->_objectEncoding;
 
         //Write encoding to start of stream. Preamble byte is written of two byte Unsigned Short
         $stream->writeByte(0x00);
         $stream->writeByte($objectEncoding);
 
         // Loop through the AMF Headers that need to be returned.
         $headerCount = count($this->_headers);
         $stream->writeInt($headerCount);
         foreach ($this->getAmfHeaders() as $header) {
             $serializer = new Zend_Amf_Parse_Amf0_Serializer($stream);
             $stream->writeUTF($header->name);
             $stream->writeByte($header->mustRead);
             $stream->writeLong(Zend_Amf_Constants::UNKNOWN_CONTENT_LENGTH);
             if (is_object($header->data)) {
                 // Workaround for PHP5 with E_STRICT enabled complaining about
                 // "Only variables should be passed by reference"
                 $placeholder = null;
                 $serializer->writeTypeMarker($placeholder, null, $header->data);
             } else {
                 $serializer->writeTypeMarker($header->data);
             }
         }
 
         // loop through the AMF bodies that need to be returned.
         $bodyCount = count($this->_bodies);
         $stream->writeInt($bodyCount);
         foreach ($this->_bodies as $body) {
             $serializer = new Zend_Amf_Parse_Amf0_Serializer($stream);
             $stream->writeUTF($body->getTargetURI());
             $stream->writeUTF($body->getResponseURI());
             $stream->writeLong(Zend_Amf_Constants::UNKNOWN_CONTENT_LENGTH);
             $bodyData = $body->getData();
             $markerType = ($this->_objectEncoding == Zend_Amf_Constants::AMF0_OBJECT_ENCODING) ? null : Zend_Amf_Constants::AMF0_AMF3;
             if (is_object($bodyData)) {
                 // Workaround for PHP5 with E_STRICT enabled complaining about
                 // "Only variables should be passed by reference"
                 $placeholder = null;
                 $serializer->writeTypeMarker($placeholder, $markerType, $bodyData);
             } else {
                 $serializer->writeTypeMarker($bodyData, $markerType);
             }
         }
 
         return $this;
     }
 
     /**
      * Return the output stream content
      *
      * @return string The contents of the output stream
      */
     public function getResponse()
     {
         return $this->_outputStream->getStream();
     }
 
     /**
      * Return the output stream content
      *
      * @return string
      */
     public function __toString()
     {
         return $this->getResponse();
     }
 
     /**
      * Add an AMF body to be sent to the Flash Player
      *
      * @param  Zend_Amf_Value_MessageBody $body
      * @return Zend_Amf_Response
      */
     public function addAmfBody(Zend_Amf_Value_MessageBody $body)
     {
         $this->_bodies[] = $body;
         return $this;
     }
 
     /**
      * Return an array of AMF bodies to be serialized
      *
      * @return array
      */
     public function getAmfBodies()
     {
         return $this->_bodies;
     }
 
     /**
      * Add an AMF Header to be sent back to the flash player
      *
      * @param  Zend_Amf_Value_MessageHeader $header
      * @return Zend_Amf_Response
      */
     public function addAmfHeader(Zend_Amf_Value_MessageHeader $header)
     {
         $this->_headers[] = $header;
         return $this;
     }
 
     /**
      * Retrieve attached AMF message headers
      *
      * @return array Array of Zend_Amf_Value_MessageHeader objects
      */
     public function getAmfHeaders()
     {
         return $this->_headers;
     }
 
     /**
      * Set the AMF encoding that will be used for serialization
      *
      * @param  int $encoding
      * @return Zend_Amf_Response
      */
     public function setObjectEncoding($encoding)
     {
         $this->_objectEncoding = $encoding;
         return $this;
     }
 }