import v1.0.0-RC4 | 2009-05-20
This commit is contained in:
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libs/Zend/XmlRpc/Value.php
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401
libs/Zend/XmlRpc/Value.php
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<?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_XmlRpc
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* @subpackage Value
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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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* @version $Id: Value.php 9095 2008-03-30 18:52:31Z thomas $
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*/
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/** Zend_XmlRpc_Value_Exception */
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require_once 'Zend/XmlRpc/Value/Exception.php';
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/** Zend_XmlRpc_Value_Scalar */
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require_once 'Zend/XmlRpc/Value/Scalar.php';
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/** Zend_XmlRpc_Value_Base64 */
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require_once 'Zend/XmlRpc/Value/Base64.php';
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/** Zend_XmlRpc_Value_Boolean */
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require_once 'Zend/XmlRpc/Value/Boolean.php';
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/** Zend_XmlRpc_Value_DateTime */
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require_once 'Zend/XmlRpc/Value/DateTime.php';
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/** Zend_XmlRpc_Value_Double */
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require_once 'Zend/XmlRpc/Value/Double.php';
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/** Zend_XmlRpc_Value_Integer */
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require_once 'Zend/XmlRpc/Value/Integer.php';
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/** Zend_XmlRpc_Value_String */
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require_once 'Zend/XmlRpc/Value/String.php';
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/** Zend_XmlRpc_Value_Nil */
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require_once 'Zend/XmlRpc/Value/Nil.php';
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/** Zend_XmlRpc_Value_Collection */
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require_once 'Zend/XmlRpc/Value/Collection.php';
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/** Zend_XmlRpc_Value_Array */
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require_once 'Zend/XmlRpc/Value/Array.php';
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/** Zend_XmlRpc_Value_Struct */
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require_once 'Zend/XmlRpc/Value/Struct.php';
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/**
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* Represent a native XML-RPC value entity, used as parameters for the methods
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* called by the Zend_XmlRpc_Client object and as the return value for those calls.
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*
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* This object as a very important static function Zend_XmlRpc_Value::getXmlRpcValue, this
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* function acts likes a factory for the Zend_XmlRpc_Value objects
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*
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* Using this function, users/Zend_XmlRpc_Client object can create the Zend_XmlRpc_Value objects
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* from PHP variables, XML string or by specifing the exact XML-RPC natvie type
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*
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* @package Zend_XmlRpc
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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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abstract class Zend_XmlRpc_Value
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{
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/**
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* The native XML-RPC representation of this object's value
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*
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* If the native type of this object is array or struct, this will be an array
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* of Zend_XmlRpc_Value objects
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*/
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protected $_value;
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/**
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* The native XML-RPC type of this object
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* One of the XMLRPC_TYPE_* constants
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*/
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protected $_type;
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/**
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* XML code representation of this object (will be calculated only once)
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*/
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protected $_as_xml;
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/**
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* DOMElement representation of object (will be calculated only once)
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*/
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protected $_as_dom;
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/**
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* Specify that the XML-RPC native type will be auto detected from a PHP variable type
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*/
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const AUTO_DETECT_TYPE = 'auto_detect';
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/**
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* Specify that the XML-RPC value will be parsed out from a given XML code
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*/
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const XML_STRING = 'xml';
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/**
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* All the XML-RPC native types
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*/
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const XMLRPC_TYPE_I4 = 'i4';
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const XMLRPC_TYPE_INTEGER = 'int';
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const XMLRPC_TYPE_DOUBLE = 'double';
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const XMLRPC_TYPE_BOOLEAN = 'boolean';
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const XMLRPC_TYPE_STRING = 'string';
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const XMLRPC_TYPE_DATETIME = 'dateTime.iso8601';
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const XMLRPC_TYPE_BASE64 = 'base64';
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const XMLRPC_TYPE_ARRAY = 'array';
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const XMLRPC_TYPE_STRUCT = 'struct';
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const XMLRPC_TYPE_NIL = 'nil';
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/**
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* Get the native XML-RPC type (the type is one of the Zend_XmlRpc_Value::XMLRPC_TYPE_* constants)
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*
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* @return string
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*/
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public function getType()
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{
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return $this->_type;
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}
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/**
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* Return the value of this object, convert the XML-RPC native value into a PHP variable
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*
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* @return mixed
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*/
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abstract public function getValue();
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/**
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* Return the XML code that represent a native MXL-RPC value
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*
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* @return string
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*/
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abstract public function saveXML();
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/**
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* Return DOMElement representation of object
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*
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* @return DOMElement
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*/
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public function getAsDOM()
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{
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if (!$this->_as_dom) {
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$doc = new DOMDocument('1.0');
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$doc->loadXML($this->saveXML());
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$this->_as_dom = $doc->documentElement;
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}
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return $this->_as_dom;
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}
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protected function _stripXmlDeclaration(DOMDocument $dom)
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{
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return preg_replace('/<\?xml version="1.0"( encoding="[^\"]*")?\?>\n/u', '', $dom->saveXML());
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}
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/**
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* Creates a Zend_XmlRpc_Value* object, representing a native XML-RPC value
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* A XmlRpcValue object can be created in 3 ways:
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* 1. Autodetecting the native type out of a PHP variable
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* (if $type is not set or equal to Zend_XmlRpc_Value::AUTO_DETECT_TYPE)
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* 2. By specifing the native type ($type is one of the Zend_XmlRpc_Value::XMLRPC_TYPE_* constants)
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* 3. From a XML string ($type is set to Zend_XmlRpc_Value::XML_STRING)
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*
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* By default the value type is autodetected according to it's PHP type
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*
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* @param mixed $value
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* @param Zend_XmlRpc_Value::constant $type
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*
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* @return Zend_XmlRpc_Value
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* @static
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*/
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public static function getXmlRpcValue($value, $type = self::AUTO_DETECT_TYPE)
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{
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switch ($type) {
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case self::AUTO_DETECT_TYPE:
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// Auto detect the XML-RPC native type from the PHP type of $value
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return self::_phpVarToNativeXmlRpc($value);
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case self::XML_STRING:
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// Parse the XML string given in $value and get the XML-RPC value in it
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return self::_xmlStringToNativeXmlRpc($value);
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case self::XMLRPC_TYPE_I4:
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// fall through to the next case
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case self::XMLRPC_TYPE_INTEGER:
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return new Zend_XmlRpc_Value_Integer($value);
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case self::XMLRPC_TYPE_DOUBLE:
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return new Zend_XmlRpc_Value_Double($value);
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case self::XMLRPC_TYPE_BOOLEAN:
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return new Zend_XmlRpc_Value_Boolean($value);
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case self::XMLRPC_TYPE_STRING:
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return new Zend_XmlRpc_Value_String($value);
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case self::XMLRPC_TYPE_BASE64:
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return new Zend_XmlRpc_Value_Base64($value);
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case self::XMLRPC_TYPE_NIL:
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return new Zend_XmlRpc_Value_Nil();
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case self::XMLRPC_TYPE_DATETIME:
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return new Zend_XmlRpc_Value_DateTime($value);
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case self::XMLRPC_TYPE_ARRAY:
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return new Zend_XmlRpc_Value_Array($value);
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case self::XMLRPC_TYPE_STRUCT:
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return new Zend_XmlRpc_Value_Struct($value);
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default:
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throw new Zend_XmlRpc_Value_Exception('Given type is not a '. __CLASS__ .' constant');
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}
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}
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/**
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* Transform a PHP native variable into a XML-RPC native value
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*
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* @param mixed $value The PHP variable for convertion
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*
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* @return Zend_XmlRpc_Value
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* @static
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*/
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private static function _phpVarToNativeXmlRpc($value)
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{
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switch (gettype($value)) {
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case 'object':
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// Check to see if it's an XmlRpc value
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if ($value instanceof Zend_XmlRpc_Value) {
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return $value;
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}
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// Otherwise, we convert the object into a struct
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$value = get_object_vars($value);
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// Break intentionally omitted
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case 'array':
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// Default native type for a PHP array (a simple numeric array) is 'array'
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$obj = 'Zend_XmlRpc_Value_Array';
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// Determine if this is an associative array
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if (!empty($value) && is_array($value) && (array_keys($value) !== range(0, count($value) - 1))) {
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$obj = 'Zend_XmlRpc_Value_Struct';
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}
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return new $obj($value);
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case 'integer':
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return new Zend_XmlRpc_Value_Integer($value);
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case 'double':
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return new Zend_XmlRpc_Value_Double($value);
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case 'boolean':
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return new Zend_XmlRpc_Value_Boolean($value);
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case 'NULL':
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case 'null':
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return new Zend_XmlRpc_Value_Nil();
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case 'string':
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// Fall through to the next case
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default:
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// If type isn't identified (or identified as string), it treated as string
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return new Zend_XmlRpc_Value_String($value);
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}
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}
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/**
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* Transform an XML string into a XML-RPC native value
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*
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* @param string|SimpleXMLElement $simple_xml A SimpleXMLElement object represent the XML string
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* It can be also a valid XML string for convertion
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*
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* @return Zend_XmlRpc_Value
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* @static
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*/
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private static function _xmlStringToNativeXmlRpc($simple_xml)
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{
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if (!$simple_xml instanceof SimpleXMLElement) {
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try {
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$simple_xml = @new SimpleXMLElement($simple_xml);
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} catch (Exception $e) {
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// The given string is not a valid XML
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throw new Zend_XmlRpc_Value_Exception('Failed to create XML-RPC value from XML string: '.$e->getMessage(),$e->getCode());
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}
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}
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// Get the key (tag name) and value from the simple xml object and convert the value to an XML-RPC native value
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list($type, $value) = each($simple_xml);
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if (!$type) { // If no type was specified, the default is string
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$type = self::XMLRPC_TYPE_STRING;
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}
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switch ($type) {
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// All valid and known XML-RPC native values
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case self::XMLRPC_TYPE_I4:
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// Fall through to the next case
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case self::XMLRPC_TYPE_INTEGER:
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$xmlrpc_val = new Zend_XmlRpc_Value_Integer($value);
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break;
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case self::XMLRPC_TYPE_DOUBLE:
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$xmlrpc_val = new Zend_XmlRpc_Value_Double($value);
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break;
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case self::XMLRPC_TYPE_BOOLEAN:
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$xmlrpc_val = new Zend_XmlRpc_Value_Boolean($value);
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break;
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case self::XMLRPC_TYPE_STRING:
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$xmlrpc_val = new Zend_XmlRpc_Value_String($value);
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break;
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case self::XMLRPC_TYPE_DATETIME: // The value should already be in a iso8601 format
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$xmlrpc_val = new Zend_XmlRpc_Value_DateTime($value);
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break;
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case self::XMLRPC_TYPE_BASE64: // The value should already be base64 encoded
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$xmlrpc_val = new Zend_XmlRpc_Value_Base64($value ,true);
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break;
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case self::XMLRPC_TYPE_NIL: // The value should always be NULL
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$xmlrpc_val = new Zend_XmlRpc_Value_Nil();
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break;
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case self::XMLRPC_TYPE_ARRAY:
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// If the XML is valid, $value must be an SimpleXML element and contain the <data> tag
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if (!$value instanceof SimpleXMLElement) {
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throw new Zend_XmlRpc_Value_Exception('XML string is invalid for XML-RPC native '. self::XMLRPC_TYPE_ARRAY .' type');
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}
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// PHP 5.2.4 introduced a regression in how empty($xml->value)
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// returns; need to look for the item specifically
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$data = null;
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foreach ($value->children() as $key => $value) {
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if ('data' == $key) {
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$data = $value;
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break;
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}
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}
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if (null === $data) {
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throw new Zend_XmlRpc_Value_Exception('Invalid XML for XML-RPC native '. self::XMLRPC_TYPE_ARRAY .' type: ARRAY tag must contain DATA tag');
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}
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$values = array();
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// Parse all the elements of the array from the XML string
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// (simple xml element) to Zend_XmlRpc_Value objects
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foreach ($data->value as $element) {
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$values[] = self::_xmlStringToNativeXmlRpc($element);
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}
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$xmlrpc_val = new Zend_XmlRpc_Value_Array($values);
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break;
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case self::XMLRPC_TYPE_STRUCT:
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// If the XML is valid, $value must be an SimpleXML
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if ((!$value instanceof SimpleXMLElement)) {
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throw new Zend_XmlRpc_Value_Exception('XML string is invalid for XML-RPC native '. self::XMLRPC_TYPE_STRUCT .' type');
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}
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$values = array();
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// Parse all the memebers of the struct from the XML string
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// (simple xml element) to Zend_XmlRpc_Value objects
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foreach ($value->member as $member) {
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// @todo? If a member doesn't have a <value> tag, we don't add it to the struct
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// Maybe we want to throw an exception here ?
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if ((!$member->value instanceof SimpleXMLElement) || empty($member->value)) {
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continue;
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//throw new Zend_XmlRpc_Value_Exception('Member of the '. self::XMLRPC_TYPE_STRUCT .' XML-RPC native type must contain a VALUE tag');
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}
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$values[(string)$member->name] = self::_xmlStringToNativeXmlRpc($member->value);
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}
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$xmlrpc_val = new Zend_XmlRpc_Value_Struct($values);
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break;
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default:
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throw new Zend_XmlRpc_Value_Exception('Value type \''. $type .'\' parsed from the XML string is not a known XML-RPC native type');
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break;
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}
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$xmlrpc_val->_setXML($simple_xml->asXML());
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return $xmlrpc_val;
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}
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private function _setXML($xml)
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{
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$this->_as_xml = $xml;
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}
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}
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