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C:/xampp/php5/PEAR/XML/RPC2/Backend/Php/Value/_[ Writable ]

File:C:/xampp/php5/PEAR/XML/RPC2/Backend/Php/Value/Base64.php

<?php

/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */

// LICENSE AGREEMENT. If folded, press za here to unfold and read license {{{ 

/**
* +-----------------------------------------------------------------------------+
* | Copyright (c) 2004-2006 Sergio Goncalves Carvalho                                |
* +-----------------------------------------------------------------------------+
* | This file is part of XML_RPC2.                                              |
* |                                                                             |
* | XML_RPC2 is free software; you can redistribute it and/or modify            |
* | it under the terms of the GNU Lesser General Public License as published by |
* | the Free Software Foundation; either version 2.1 of the License, or         |
* | (at your option) any later version.                                         |
* |                                                                             |
* | XML_RPC2 is distributed in the hope that it will be useful,                 |
* | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
* | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
* | GNU Lesser General Public License for more details.                         |
* |                                                                             |
* | You should have received a copy of the GNU Lesser General Public License    |
* | along with XML_RPC2; if not, write to the Free Software                     |
* | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA                    |
* | 02111-1307 USA                                                              |
* +-----------------------------------------------------------------------------+
* | Author: Sergio Carvalho <sergio.carvalho@portugalmail.com>                  |
* +-----------------------------------------------------------------------------+
*
* @category   XML
* @package    XML_RPC2
* @author     Sergio Carvalho <sergio.carvalho@portugalmail.com>  
* @copyright  2004-2006 Sergio Carvalho
* @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
* @version    CVS: $Id: Base64.php,v 1.4 2006/01/22 01:57:00 fab Exp $
* @link       http://pear.php.net/package/XML_RPC2
*/

// }}}

// dependencies {{{
require_once 'XML/RPC2/Exception.php';
require_once 'XML/RPC2/Backend/Php/Value/Scalar.php';
// }}}

/**
 * XML_RPC base64 value class. Instances of this class represent base64-encoded string scalars in XML_RPC
 * 
 * To work on a compatible way with the xmlrpcext backend, we introduce a particular "nativeValue" which is
 * a standard class (stdclass) with two public properties :
 * scalar => the string (non encoded)
 * xmlrpc_type => 'base64'
 * 
 * The constructor can be called with a "classic" string or with a such object 
 * 
 * @category   XML
 * @package    XML_RPC2
 * @author     Sergio Carvalho <sergio.carvalho@portugalmail.com>  
 * @copyright  2004-2006 Sergio Carvalho
 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
 * @link       http://pear.php.net/package/XML_RPC2
 */
class XML_RPC2_Backend_Php_Value_Base64 extends XML_RPC2_Backend_Php_Value
{
    
    // {{{ constructor

    /**
     * Constructor. Will build a new XML_RPC2_Backend_Php_Value_Base64 with the given value
     *
     * This class handles encoding-decoding internally. Do not provide the
     * native string base64-encoded
     * 
     * @param mixed String $nativeValue to be transmited base64-encoded or "stdclass native value"  
     */
    public function __construct($nativeValue) 
    {
        if ((is_object($nativeValue)) &&(strtolower(get_class($nativeValue)) == 'stdclass') && (isset($nativeValue->xmlrpc_type))) {
            $scalar = $nativeValue->scalar;
        } else {
            if (!is_string($nativeValue)) {
                throw new XML_RPC2_InvalidTypeException(sprintf('Cannot create XML_RPC2_Backend_Php_Value_Base64 from type \'%s\'.', gettype($nativeValue)));
           }
            $scalar = $nativeValue;
        }
        $tmp              = new stdclass();
        $tmp->scalar      = $scalar;
        $tmp->xmlrpc_type = 'base64';
        $this->setNativeValue($tmp);
    }
    
    // }}}
    // {{{ encode()
    
    /**
     * Encode the instance into XML, for transport
     * 
     * @return string The encoded XML-RPC value,
     */
    public function encode() 
    {
        $native = $this->getNativeValue();
        return '<base64>' . base64_encode($native->scalar) . '</base64>';
    }
    
    // }}}
    // {{{ decode()
    
    /**
     * Decode transport XML and set the instance value accordingly
     *
     * @param mixed $xml The encoded XML-RPC value,
     */
    public static function decode($xml) 
    {
        // TODO Remove reparsing of XML fragment, when SimpleXML proves more solid. Currently it segfaults when
        // xpath is used both in an element and in one of its children
        $xml = simplexml_load_string($xml->asXML());
        $value = $xml->xpath('/value/base64/text()');
        if (!array_key_exists(0, $value)) {
            $value = $xml->xpath('/value/text()');
        }
        // Emulate xmlrpcext results (to be able to switch from a backend to another)
        $result = new stdclass();
        $result->scalar = base64_decode($value[0]);
        $result->xmlrpc_type = 'base64';
        return $result;
    }
    
    // }}}
    
}

?>

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