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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) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Request.php 16971 2009-07-22 18:05:45Z mikaelkael $
*/
/** Zend_Amf_Parse_InputStream */
require_once 'Zend/Amf/Parse/InputStream.php';
/** Zend_Amf_Parse_Amf0_Deserializer */
require_once 'Zend/Amf/Parse/Amf0/Deserializer.php';
/** Zend_Amf_Constants */
require_once 'Zend/Amf/Constants.php';
/** Zend_Amf_Value_MessageHeader */
require_once 'Zend/Amf/Value/MessageHeader.php';
/** Zend_Amf_Value_MessageBody */
require_once 'Zend/Amf/Value/MessageBody.php';
/**
* Handle the incoming AMF request by deserializing the data to php object
* types and storing the data for Zend_Amf_Server to handle for processing.
*
* @todo Currently not checking if the object needs to be Type Mapped to a server object.
* @package Zend_Amf
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Amf_Request
{
/**
* @var int AMF client type (AMF0, AMF3)
*/
protected $_clientType = 0; // default AMF0
/**
* @var array Message bodies
*/
protected $_bodies = array();
/**
* @var array Message headers
*/
protected $_headers = array();
/**
* @var int Message encoding to use for objects in response
*/
protected $_objectEncoding = 0;
/**
* @var Zend_Amf_Parse_InputStream
*/
protected $_inputStream;
/**
* @var Zend_Amf_Parse_AMF0_Deserializer
*/
protected $_deserializer;
/**
* Time of the request
* @var mixed
*/
protected $_time;
/**
* Prepare the AMF InputStream for parsing.
*
* @param string $request
* @return Zend_Amf_Request
*/
public function initialize($request)
{
$this->_inputStream = new Zend_Amf_Parse_InputStream($request);
$this->_deserializer = new Zend_Amf_Parse_Amf0_Deserializer($this->_inputStream);
$this->readMessage($this->_inputStream);
return $this;
}
/**
* Takes the raw AMF input stream and converts it into valid PHP objects
*
* @param Zend_Amf_Parse_InputStream
* @return Zend_Amf_Request
*/
public function readMessage(Zend_Amf_Parse_InputStream $stream)
{
$clientVersion = $stream->readUnsignedShort();
if (($clientVersion != Zend_Amf_Constants::AMF0_OBJECT_ENCODING)
&& ($clientVersion != Zend_Amf_Constants::AMF3_OBJECT_ENCODING)
&& ($clientVersion != Zend_Amf_Constants::FMS_OBJECT_ENCODING)
) {
require_once 'Zend/Amf/Exception.php';
throw new Zend_Amf_Exception('Unknown Player Version ' . $clientVersion);
}
$this->_bodies = array();
$this->_headers = array();
$headerCount = $stream->readInt();
// Iterate through the AMF envelope header
while ($headerCount--) {
$this->_headers[] = $this->readHeader();
}
// Iterate through the AMF envelope body
$bodyCount = $stream->readInt();
while ($bodyCount--) {
$this->_bodies[] = $this->readBody();
}
return $this;
}
/**
* Deserialize a message header from the input stream.
*
* A message header is structured as:
* - NAME String
* - MUST UNDERSTAND Boolean
* - LENGTH Int
* - DATA Object
*
* @return Zend_Amf_Value_MessageHeader
*/
public function readHeader()
{
$name = $this->_inputStream->readUTF();
$mustRead = (bool)$this->_inputStream->readByte();
$length = $this->_inputStream->readLong();
try {
$data = $this->_deserializer->readTypeMarker();
} catch (Exception $e) {
require_once 'Zend/Amf/Exception.php';
throw new Zend_Amf_Exception('Unable to parse ' . $name . ' header data: ' . $e->getMessage() . ' '. $e->getLine());
}
$header = new Zend_Amf_Value_MessageHeader($name, $mustRead, $data, $length);
return $header;
}
/**
* Deserialize a message body from the input stream
*
* @return Zend_Amf_Value_MessageBody
*/
public function readBody()
{
$targetURI = $this->_inputStream->readUTF();
$responseURI = $this->_inputStream->readUTF();
$length = $this->_inputStream->readLong();
try {
$data = $this->_deserializer->readTypeMarker();
} catch (Exception $e) {
require_once 'Zend/Amf/Exception.php';
throw new Zend_Amf_Exception('Unable to parse ' . $targetURI . ' body data ' . $e->getMessage());
}
// Check for AMF3 objectEncoding
if ($this->_deserializer->getObjectEncoding() == Zend_Amf_Constants::AMF3_OBJECT_ENCODING) {
/*
* When and AMF3 message is sent to the server it is nested inside
* an AMF0 array called Content. The following code gets the object
* out of the content array and sets it as the message data.
*/
if(is_array($data) && $data[0] instanceof Zend_Amf_Value_Messaging_AbstractMessage){
$data = $data[0];
}
// set the encoding so we return our message in AMF3
$this->_objectEncoding = Zend_Amf_Constants::AMF3_OBJECT_ENCODING;
}
$body = new Zend_Amf_Value_MessageBody($targetURI, $responseURI, $data);
return $body;
}
/**
* Return an array of the body objects that were found in the amf request.
*
* @return array {target, response, length, content}
*/
public function getAmfBodies()
{
return $this->_bodies;
}
/**
* Accessor to private array of message bodies.
*
* @param Zend_Amf_Value_MessageBody $message
* @return Zend_Amf_Request
*/
public function addAmfBody(Zend_Amf_Value_MessageBody $message)
{
$this->_bodies[] = $message;
return $this;
}
/**
* Return an array of headers that were found in the amf request.
*
* @return array {operation, mustUnderstand, length, param}
*/
public function getAmfHeaders()
{
return $this->_headers;
}
/**
* Return the either 0 or 3 for respect AMF version
*
* @return int
*/
public function getObjectEncoding()
{
return $this->_objectEncoding;
}
/**
* Set the object response encoding
*
* @param mixed $int
* @return Zend_Amf_Request
*/
public function setObjectEncoding($int)
{
$this->_objectEncoding = $int;
return $this;
}
}
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