<?php

/* -----------------------------------------------------------------------------
class name : GPCAjax
class version : 3.1.0
plugin version : 3.5.2
date : 2012-06-19
------------------------------------------------------------------------------
author: grum at piwigo.org
<< May the Little SpaceFrog be with you >>
------------------------------------------------------------------------------

:: HISTORY

| release | date |
| 3.0.0 | 2010/03/30 | * Update class & function names
| | |
| 3.1.0 | 2012/06/19 | * Check token request
| | |
| | |
| | |
| | |
| | |
| | |
| | |

------------------------------------------------------------------------------
no constructor, only static function are provided
- static function return_result($str)
---------------------------------------------------------------------- */

define('GPC_AJAX', 'ajaxfct');

class GPCAjax
{
static public function returnResult($str)
{
//$chars=get_html_translation_table(HTML_ENTITIES, ENT_NOQUOTES);
$chars['<']='<';
$chars['>']='>';
$chars['&']='&';
exit(strtr($str, $chars));
}

/**
* check if there's a valid token in $_REQUEST
* if no, the GPC_AJAX call is set to empty value
*
* @param String $fct: the ajax function field (GPC_AJAX by default)
* @param String $token: the token field ('token' by default) to check
* @return Boolean: true if ok, otherwise false
*/
static public function checkToken($fct=GPC_AJAX, $token='token')
{
if(!isset($_REQUEST[$token])) $_REQUEST[$token]='';
if($fct!='' && !isset($_REQUEST[$fct])) $_REQUEST[$fct]='';

if($_REQUEST[$token]==get_pwg_token()) return(true);

if($fct!='') $_REQUEST[$fct]='';
return(false);
}
} //class

?>