File indexing completed on 2024-06-23 05:55:01

 <?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
  * @subpackage Parse_Amf0
  * @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    $Id$
  */
 
 /** Zend_Amf_Constants */
 // require_once 'Zend/Amf/Constants.php';
 
 /** Zend_Xml_Security */
 // require_once 'Zend/Xml/Security.php';
 
 /** @see Zend_Amf_Parse_Deserializer */
 // require_once 'Zend/Amf/Parse/Deserializer.php';
 
 /**
  * Read an AMF0 input stream and convert it into PHP data types
  *
  * @todo       Implement Typed Object Class Mapping
  * @todo       Class could be implemented as Factory Class with each data type it's own class
  * @package    Zend_Amf
  * @subpackage Parse_Amf0
  * @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_Parse_Amf0_Deserializer extends Zend_Amf_Parse_Deserializer
 {
     /**
      * An array of objects used for recursively deserializing an object.
      * @var array
      */
     protected $_reference = array();
 
     /**
      * If AMF3 serialization occurs, update to AMF0 0x03
      *
      * @var int
      */
     protected $_objectEncoding = Zend_Amf_Constants::AMF0_OBJECT_ENCODING;
 
     /**
      * Read AMF markers and dispatch for deserialization
      *
      * Checks for AMF marker types and calls the appropriate methods
      * for deserializing those marker types. Markers are the data type of
      * the following value.
      *
      * @param  integer $typeMarker
      * @return mixed whatever the data type is of the marker in php
      * @throws Zend_Amf_Exception for invalid type
      */
     public function readTypeMarker($typeMarker = null)
     {
         if ($typeMarker === null) {
             $typeMarker = $this->_stream->readByte();
         }
 
         switch($typeMarker) {
             // number
             case Zend_Amf_Constants::AMF0_NUMBER:
                 return $this->_stream->readDouble();
 
             // boolean
             case Zend_Amf_Constants::AMF0_BOOLEAN:
                 return (boolean) $this->_stream->readByte();
 
             // string
             case Zend_Amf_Constants::AMF0_STRING:
                 return $this->_stream->readUTF();
 
             // object
             case Zend_Amf_Constants::AMF0_OBJECT:
                 return $this->readObject();
 
             // null
             case Zend_Amf_Constants::AMF0_NULL:
                 return null;
 
             // undefined
             case Zend_Amf_Constants::AMF0_UNDEFINED:
                 return null;
 
             // Circular references are returned here
             case Zend_Amf_Constants::AMF0_REFERENCE:
                 return $this->readReference();
 
             // mixed array with numeric and string keys
             case Zend_Amf_Constants::AMF0_MIXEDARRAY:
                 return $this->readMixedArray();
 
             // array
             case Zend_Amf_Constants::AMF0_ARRAY:
                 return $this->readArray();
 
             // date
             case Zend_Amf_Constants::AMF0_DATE:
                 return $this->readDate();
 
             // longString  strlen(string) > 2^16
             case Zend_Amf_Constants::AMF0_LONGSTRING:
                 return $this->_stream->readLongUTF();
 
             //internal AS object,  not supported
             case Zend_Amf_Constants::AMF0_UNSUPPORTED:
                 return null;
 
             // XML
             case Zend_Amf_Constants::AMF0_XML:
                 return $this->readXmlString();
 
             // typed object ie Custom Class
             case Zend_Amf_Constants::AMF0_TYPEDOBJECT:
                 return $this->readTypedObject();
 
             //AMF3-specific
             case Zend_Amf_Constants::AMF0_AMF3:
                 return $this->readAmf3TypeMarker();
 
             default:
                 // require_once 'Zend/Amf/Exception.php';
                 throw new Zend_Amf_Exception('Unsupported marker type: ' . $typeMarker);
         }
     }
 
     /**
      * Read AMF objects and convert to PHP objects
      *
      * Read the name value pair objects form the php message and convert them to
      * a php object class.
      *
      * Called when the marker type is 3.
      *
      * @param  array|null $object
      * @return object
      */
     public function readObject($object = null)
     {
         if ($object === null) {
             $object = array();
         }
 
         while (true) {
             $key        = $this->_stream->readUTF();
             $typeMarker = $this->_stream->readByte();
             if ($typeMarker != Zend_Amf_Constants::AMF0_OBJECTTERM ){
                 //Recursivly call readTypeMarker to get the types of properties in the object
                 $object[$key] = $this->readTypeMarker($typeMarker);
             } else {
                 //encountered AMF object terminator
                 break;
             }
         }
         $this->_reference[] = $object;
         return (object) $object;
     }
 
     /**
      * Read reference objects
      *
      * Used to gain access to the private array of reference objects.
      * Called when marker type is 7.
      *
      * @return object
      * @throws Zend_Amf_Exception for invalid reference keys
      */
     public function readReference()
     {
         $key = $this->_stream->readInt();
         if (!array_key_exists($key, $this->_reference)) {
             // require_once 'Zend/Amf/Exception.php';
             throw new Zend_Amf_Exception('Invalid reference key: '. $key);
         }
         return $this->_reference[$key];
     }
 
     /**
      * Reads an array with numeric and string indexes.
      *
      * Called when marker type is 8
      *
      * @todo   As of Flash Player 9 there is not support for mixed typed arrays
      *         so we handle this as an object. With the introduction of vectors
      *         in Flash Player 10 this may need to be reconsidered.
      * @return array
      */
     public function readMixedArray()
     {
         $length = $this->_stream->readLong();
         return $this->readObject();
     }
 
     /**
      * Converts numerically indexed actiosncript arrays into php arrays.
      *
      * Called when marker type is 10
      *
      * @return array
      */
     public function readArray()
     {
         $length = $this->_stream->readLong();
         $array = array();
         while ($length--) {
             $array[] = $this->readTypeMarker();
         }
         return $array;
     }
 
     /**
      * Convert AS Date to Zend_Date
      *
      * @return Zend_Date
      */
     public function readDate()
     {
         // get the unix time stamp. Not sure why ActionScript does not use
         // milliseconds
         $timestamp = floor($this->_stream->readDouble() / 1000);
 
         // The timezone offset is never returned to the server; it is always 0,
         // so read and ignore.
         $offset = $this->_stream->readInt();
 
         // require_once 'Zend/Date.php';
         $date   = new Zend_Date($timestamp);
         return $date;
     }
 
     /**
      * Convert XML to SimpleXml
      * If user wants DomDocument they can use dom_import_simplexml
      *
      * @return SimpleXml Object
      */
     public function readXmlString()
     {
         $string = $this->_stream->readLongUTF();
         return Zend_Xml_Security::scan($string); //simplexml_load_string($string);
     }
 
     /**
      * Read Class that is to be mapped to a server class.
      *
      * Commonly used for Value Objects on the server
      *
      * @todo   implement Typed Class mapping
      * @return object|array
      * @throws Zend_Amf_Exception if unable to load type
      */
     public function readTypedObject()
     {
          // require_once 'Zend/Amf/Parse/TypeLoader.php';
         // get the remote class name
         $className = $this->_stream->readUTF();
         $loader = Zend_Amf_Parse_TypeLoader::loadType($className);
         $returnObject = new $loader();
         $properties = get_object_vars($this->readObject());
         foreach($properties as $key=>$value) {
             if($key) {
                 $returnObject->$key = $value;
             }
         }
         if($returnObject instanceof Zend_Amf_Value_Messaging_ArrayCollection) {
             $returnObject = get_object_vars($returnObject);
         }
         return $returnObject;
     }
 
     /**
      * AMF3 data type encountered load AMF3 Deserializer to handle
      * type markers.
      *
      * @return string
      */
     public function readAmf3TypeMarker()
     {
         // require_once 'Zend/Amf/Parse/Amf3/Deserializer.php';
         $deserializer = new Zend_Amf_Parse_Amf3_Deserializer($this->_stream);
         $this->_objectEncoding = Zend_Amf_Constants::AMF3_OBJECT_ENCODING;
         return $deserializer->readTypeMarker();
     }
 
     /**
      * Return the object encoding to check if an AMF3 object
      * is going to be return.
      *
      * @return int
      */
     public function getObjectEncoding()
     {
         return $this->_objectEncoding;
     }
 }