web/lib/Zend/Amf/Adobe/Introspector.php
changeset 64 162c1de6545a
parent 19 1c2f13fd785c
child 68 ecaf28ffe26e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Amf/Adobe/Introspector.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,318 @@
+<?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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Introspector.php 23316 2010-11-10 16:37:40Z matthew $
+ */
+
+/** @see Zend_Amf_Parse_TypeLoader */
+require_once 'Zend/Amf/Parse/TypeLoader.php';
+
+/** @see Zend_Reflection_Class */
+require_once 'Zend/Reflection/Class.php';
+
+/** @see 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) 2005-2010 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', $ptype);
+
+                    if($param->isDefaultValueAvailable()) {
+                        $arg->setAttribute('defaultvalue', $param->getDefaultValue());
+                    }
+
+                    $op->appendChild($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';
+        }
+
+        // Arrays
+        if ('array' == $typename) {
+            return 'Unknown[]';
+        }
+
+        if (in_array($typename, array('int', 'integer', 'bool', 'boolean', 'float', 'string', 'object', 'Unknown', 'stdClass'))) {
+            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';
+    }
+}