318 lines
11 KiB
PHP
318 lines
11 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_Amf
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* @subpackage Parse_Amf3
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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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/** Zend_Amf_Parse_Serializer */
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require_once 'Zend/Amf/Parse/Serializer.php';
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/** Zend_Amf_Parse_TypeLoader */
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require_once 'Zend/Amf/Parse/TypeLoader.php';
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/**
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* Detect PHP object type and convert it to a corresponding AMF3 object type
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*
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* @package Zend_Amf
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* @subpackage Parse_Amf3
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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_Amf_Parse_Amf3_Serializer extends Zend_Amf_Parse_Serializer
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{
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/**
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* Serialize PHP types to AMF3 and write to stream
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*
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* Checks to see if the type was declared and then either
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* auto negotiates the type or use the user defined markerType to
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* serialize the data from php back to AMF3
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*
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* @param mixed $content
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* @param int $markerType
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* @return void
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*/
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public function writeTypeMarker($data, $markerType=null)
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{
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if (null !== $markerType) {
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// Write the Type Marker to denote the following action script data type
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$this->_stream->writeByte($markerType);
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switch ($markerType) {
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case Zend_Amf_Constants::AMF3_NULL:
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break;
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case Zend_Amf_Constants::AMF3_BOOLEAN_FALSE:
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break;
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case Zend_Amf_Constants::AMF3_BOOLEAN_TRUE:
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break;
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case Zend_Amf_Constants::AMF3_INTEGER:
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$this->writeInteger($data);
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break;
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case Zend_Amf_Constants::AMF3_NUMBER:
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$this->_stream->writeDouble($data);
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break;
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case Zend_Amf_Constants::AMF3_STRING:
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$this->writeString($data);
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break;
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case Zend_Amf_Constants::AMF3_DATE:
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$this->writeDate($data);
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break;
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case Zend_Amf_Constants::AMF3_ARRAY:
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$this->writeArray($data);
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break;
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case Zend_Amf_Constants::AMF3_OBJECT:
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$this->writeObject($data);
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break;
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case Zend_Amf_Constants::AMF3_BYTEARRAY:
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$this->writeString($data);
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break;
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default:
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require_once 'Zend/Amf/Exception.php';
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throw new Zend_Amf_Exception('Unknown Type Marker: ' . $markerType);
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}
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} else {
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// Detect Type Marker
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switch (true) {
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case (null === $data):
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$markerType = Zend_Amf_Constants::AMF3_NULL;
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break;
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case (is_bool($data)):
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if ($data){
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$markerType = Zend_Amf_Constants::AMF3_BOOLEAN_TRUE;
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} else {
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$markerType = Zend_Amf_Constants::AMF3_BOOLEAN_FALSE;
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}
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break;
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case (is_int($data)):
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if (($data > 0xFFFFFFF) || ($data < -268435456)) {
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$markerType = Zend_Amf_Constants::AMF3_NUMBER;
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} else {
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$markerType = Zend_Amf_Constants::AMF3_INTEGER;
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}
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break;
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case (is_float($data)):
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$markerType = Zend_Amf_Constants::AMF3_NUMBER;
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break;
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case (is_string($data)):
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$markerType = Zend_Amf_Constants::AMF3_STRING;
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break;
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case (is_array($data)):
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$markerType = Zend_Amf_Constants::AMF3_ARRAY;
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break;
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case (is_object($data)):
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// Handle object types.
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if (($data instanceof DateTime) || ($data instanceof Zend_Date)) {
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$markerType = Zend_Amf_Constants::AMF3_DATE;
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} else if ($data instanceof Zend_Amf_Value_ByteArray) {
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$markerType = Zend_Amf_Constants::AMF3_BYTEARRAY;
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} else {
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$markerType = Zend_Amf_Constants::AMF3_OBJECT;
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}
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break;
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default:
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require_once 'Zend/Amf/Exception.php';
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throw new Zend_Amf_Exception('Unsupported data type: ' . gettype($data));
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}
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$this->writeTypeMarker($data, $markerType);
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}
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}
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/**
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* Write an AMF3 integer
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*
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* @param int|float $data
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* @return Zend_Amf_Parse_Amf3_Serializer
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*/
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public function writeInteger($int)
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{
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if (($int & 0xffffff80) == 0) {
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$this->_stream->writeByte($int & 0x7f);
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return $this;
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}
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if (($int & 0xffffc000) == 0 ) {
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$this->_stream->writeByte(($int >> 7 ) | 0x80);
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$this->_stream->writeByte($int & 0x7f);
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return $this;
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}
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if (($int & 0xffe00000) == 0) {
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$this->_stream->writeByte(($int >> 14 ) | 0x80);
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$this->_stream->writeByte(($int >> 7 ) | 0x80);
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$this->_stream->writeByte($int & 0x7f);
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return $this;
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}
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$this->_stream->writeByte(($int >> 22 ) | 0x80);
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$this->_stream->writeByte(($int >> 15 ) | 0x80);
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$this->_stream->writeByte(($int >> 8 ) | 0x80);
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$this->_stream->writeByte($int & 0xff);
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return $this;
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}
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/**
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* Send string to output stream
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*
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* @param string $string
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* @return Zend_Amf_Parse_Amf3_Serializer
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*/
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public function writeString($string)
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{
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$ref = strlen($string) << 1 | 0x01;
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$this->writeInteger($ref);
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$this->_stream->writeBytes($string);
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return $this;
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}
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/**
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* Convert DateTime/Zend_Date to AMF date
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*
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* @param DateTime|Zend_Date $date
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* @return Zend_Amf_Parse_Amf3_Serializer
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*/
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public function writeDate($date)
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{
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if ($date instanceof DateTime) {
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$dateString = $date->format('U') * 1000;
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} elseif ($date instanceof Zend_Date) {
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$dateString = $date->toString('U') * 1000;
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} else {
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require_once 'Zend/Amf/Exception.php';
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throw new Zend_Amf_Exception('Invalid date specified; must be a string DateTime or Zend_Date object');
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}
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$this->writeInteger(0x01);
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// write time to stream minus milliseconds
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$this->_stream->writeDouble($dateString);
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return $this;
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}
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/**
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* Write a PHP array back to the amf output stream
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*
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* @param array $array
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* @return Zend_Amf_Parse_Amf3_Serializer
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*/
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public function writeArray(array $array)
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{
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// have to seperate mixed from numberic keys.
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$numeric = array();
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$string = array();
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foreach ($array as $key => $value) {
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if (is_int($key)) {
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$numeric[] = $value;
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} else {
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$string[$key] = $value;
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}
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}
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// write the preamble id of the array
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$length = count($numeric);
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$id = ($length << 1) | 0x01;
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$this->writeInteger($id);
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//Write the mixed type array to the output stream
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foreach($string as $key => $value) {
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$this->writeString($key)
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->writeTypeMarker($value);
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}
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$this->writeString('');
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// Write the numeric array to ouput stream
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foreach($numeric as $value) {
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$this->writeTypeMarker($value);
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}
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return $this;
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}
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/**
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* Write object to ouput stream
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*
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* @param mixed $data
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* @return Zend_Amf_Parse_Amf3_Serializer
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*/
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public function writeObject($object)
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{
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$encoding = Zend_Amf_Constants::ET_PROPLIST;
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$className = '';
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//Check to see if the object is a typed object and we need to change
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switch (true) {
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// the return class mapped name back to actionscript class name.
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case ($className = Zend_Amf_Parse_TypeLoader::getMappedClassName(get_class($object))):
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break;
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// Check to see if the user has defined an explicit Action Script type.
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case isset($object->_explicitType):
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$className = $object->_explicitType;
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unset($object->_explicitType);
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break;
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// Check if user has defined a method for accessing the Action Script type
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case method_exists($object, 'getASClassName'):
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$className = $object->getASClassName();
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break;
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// No return class name is set make it a generic object
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default:
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break;
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}
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$traitsInfo = Zend_Amf_Constants::AMF3_OBJECT_ENCODING;
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$traitsInfo |= $encoding << 2;
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try {
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switch($encoding) {
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case Zend_Amf_Constants::ET_PROPLIST:
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$count = 0;
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foreach($object as $key => $value) {
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$count++;
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}
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$traitsInfo |= ($count << 4);
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// Write the object ID
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$this->writeInteger($traitsInfo);
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// Write the classname
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$this->writeString($className);
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// Write the object Key's to the output stream
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foreach ($object as $key => $value) {
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$this->writeString($key);
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}
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//Write the object values to the output stream.
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foreach ($object as $key => $value) {
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$this->writeTypeMarker($value);
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}
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break;
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case Zend_Amf_Constants::ET_EXTERNAL:
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require_once 'Zend/Amf/Exception.php';
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throw new Zend_Amf_Exception('External Object Encoding not implemented');
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break;
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default:
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require_once 'Zend/Amf/Exception.php';
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throw new Zend_Amf_Exception('Unknown Object Encoding type: ' . $encoding);
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}
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} catch (Exception $e) {
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require_once 'Zend/Amf/Exception.php';
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throw new Zend_Amf_Exception('Unable to writeObject output: ' . $e->getMessage());
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}
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return $this;
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}
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}
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