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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: Introspector.php 18951 2009-11-12 16:26:19Z alexander $
*/
/** Zend_Amf_Parse_TypeLoader */
require_once 'Zend/Amf/Parse/TypeLoader.php';
/** Zend_Reflection_Class */
require_once 'Zend/Reflection/Class.php';
/** Zend_Server_Reflection */
require_once 'Zend/Server/Reflection.php';
/**
* This class implements a service for generating AMF service descriptions as XML.
*
* @package Zend_Amf
* @subpackage Adobe
* @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_Adobe_Introspector
{
/**
* Options used:
* - server: instance of Zend_Amf_Server to use
* - directories: directories where class files may be looked up
*
* @var array Introspector options
*/
protected $_options;
/**
* @var DOMElement DOM element to store types
*/
protected $_types;
/**
* @var array Map of the known types
*/
protected $_typesMap = array();
/**
* @var DOMDocument XML document to store data
*/
protected $_xml;
/**
* Constructor
*
* @return void
*/
public function __construct()
{
$this->_xml = new DOMDocument('1.0', 'utf-8');
}
/**
* Create XML definition on an AMF service class
*
* @param string $serviceClass Service class name
* @param array $options invocation options
* @return string XML with service class introspection
*/
public function introspect($serviceClass, $options = array())
{
$this->_options = $options;
if (strpbrk($serviceClass, '\\/<>')) {
return $this->_returnError('Invalid service name');
}
// Transform com.foo.Bar into com_foo_Bar
$serviceClass = str_replace('.' , '_', $serviceClass);
// Introspect!
if (!class_exists($serviceClass)) {
require_once 'Zend/Loader.php';
Zend_Loader::loadClass($serviceClass, $this->_getServicePath());
}
$serv = $this->_xml->createElement('service-description');
$serv->setAttribute('xmlns', 'http://ns.adobe.com/flex/service-description/2008');
$this->_types = $this->_xml->createElement('types');
$this->_ops = $this->_xml->createElement('operations');
$r = Zend_Server_Reflection::reflectClass($serviceClass);
$this->_addService($r, $this->_ops);
$serv->appendChild($this->_types);
$serv->appendChild($this->_ops);
$this->_xml->appendChild($serv);
return $this->_xml->saveXML();
}
/**
* Authentication handler
*
* @param Zend_Acl $acl
* @return unknown_type
*/
public function initAcl(Zend_Acl $acl)
{
return false; // we do not need auth for this class
}
/**
* Generate map of public class attributes
*
* @param string $typename type name
* @param DOMElement $typexml target XML element
* @return void
*/
protected function _addClassAttributes($typename, DOMElement $typexml)
{
// Do not try to autoload here because _phpTypeToAS should
// have already attempted to load this class
if (!class_exists($typename, false)) {
return;
}
$rc = new Zend_Reflection_Class($typename);
foreach ($rc->getProperties() as $prop) {
if (!$prop->isPublic()) {
continue;
}
$propxml = $this->_xml->createElement('property');
$propxml->setAttribute('name', $prop->getName());
$type = $this->_registerType($this->_getPropertyType($prop));
$propxml->setAttribute('type', $type);
$typexml->appendChild($propxml);
}
}
/**
* Build XML service description from reflection class
*
* @param Zend_Server_Reflection_Class $refclass
* @param DOMElement $target target XML element
* @return void
*/
protected function _addService(Zend_Server_Reflection_Class $refclass, DOMElement $target)
{
foreach ($refclass->getMethods() as $method) {
if (!$method->isPublic()
|| $method->isConstructor()
|| ('__' == substr($method->name, 0, 2))
) {
continue;
}
foreach ($method->getPrototypes() as $proto) {
$op = $this->_xml->createElement('operation');
$op->setAttribute('name', $method->getName());
$rettype = $this->_registerType($proto->getReturnType());
$op->setAttribute('returnType', $rettype);
foreach ($proto->getParameters() as $param) {
$arg = $this->_xml->createElement('argument');
$arg->setAttribute('name', $param->getName());
$type = $param->getType();
if ($type == 'mixed' && ($pclass = $param->getClass())) {
$type = $pclass->getName();
}
$ptype = $this->_registerType($type);
$arg->setAttribute('type', $ptype);
$op->appendChild($arg);
}
$target->appendChild($op);
}
}
}
/**
* Extract type of the property from DocBlock
*
* @param Zend_Reflection_Property $prop reflection property object
* @return string Property type
*/
protected function _getPropertyType(Zend_Reflection_Property $prop)
{
$docBlock = $prop->getDocComment();
if (!$docBlock) {
return 'Unknown';
}
if (!$docBlock->hasTag('var')) {
return 'Unknown';
}
$tag = $docBlock->getTag('var');
return trim($tag->getDescription());
}
/**
* Get the array of service directories
*
* @return array Service class directories
*/
protected function _getServicePath()
{
if (isset($this->_options['server'])) {
return $this->_options['server']->getDirectory();
}
if (isset($this->_options['directories'])) {
return $this->_options['directories'];
}
return array();
}
/**
* Map from PHP type name to AS type name
*
* @param string $typename PHP type name
* @return string AS type name
*/
protected function _phpTypeToAS($typename)
{
if (class_exists($typename)) {
$vars = get_class_vars($typename);
if (isset($vars['_explicitType'])) {
return $vars['_explicitType'];
}
}
if (false !== ($asname = Zend_Amf_Parse_TypeLoader::getMappedClassName($typename))) {
return $asname;
}
return $typename;
}
/**
* Register new type on the system
*
* @param string $typename type name
* @return string New type name
*/
protected function _registerType($typename)
{
// Known type - return its AS name
if (isset($this->_typesMap[$typename])) {
return $this->_typesMap[$typename];
}
// Standard types
if (in_array($typename, array('void', 'null', 'mixed', 'unknown_type'))) {
return 'Unknown';
}
if (in_array($typename, array('int', 'integer', 'bool', 'boolean', 'float', 'string', 'object', 'Unknown', 'stdClass', 'array'))) {
return $typename;
}
// Resolve and store AS name
$asTypeName = $this->_phpTypeToAS($typename);
$this->_typesMap[$typename] = $asTypeName;
// Create element for the name
$typeEl = $this->_xml->createElement('type');
$typeEl->setAttribute('name', $asTypeName);
$this->_addClassAttributes($typename, $typeEl);
$this->_types->appendChild($typeEl);
return $asTypeName;
}
/**
* Return error with error message
*
* @param string $msg Error message
* @return string
*/
protected function _returnError($msg)
{
return 'ERROR: $msg';
}
}
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