typo3/ajax.php

   1 <?php
   2 /***************************************************************
   3 *  Copyright notice
   4 *
   5 *  (c) 2007-2009 Benjamin Mack
   6 *  All rights reserved
   7 *
   8 *  This script is part of the TYPO3 project. The TYPO3 project is
   9 *  free software; you can redistribute it and/or modify
  10 *  it under the terms of the GNU General Public License as published by
  11 *  the Free Software Foundation; either version 2 of the License, or
  12 *  (at your option) any later version.
  13 *
  14 *  The GNU General Public License can be found at
  15 *  http://www.gnu.org/copyleft/gpl.html.
  16 *  A copy is found in the textfile GPL.txt and important notices to the license
  17 *  from the author is found in LICENSE.txt distributed with these scripts.
  18 *
  19 *
  20 *  This script is distributed in the hope that it will be useful,
  21 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 *  GNU General Public License for more details.
  24 *
  25 *  This copyright notice MUST APPEAR in all copies of the script!
  26 ***************************************************************/
  27 /**
  28  * AJAX dispatcher
  29  * @author      Benjamin Mack <mack@xnos.org>
  30  * @package     TYPO3
  31  */
  32
  33 $TYPO3_AJAX = true;
  34
  35 // include t3lib_div at this time to get the GET/POST methods it provides
  36 require_once('../t3lib/class.t3lib_div.php');
  37
  38 // first get the ajaxID
  39 $ajaxID = (string)t3lib_div::_GP('ajaxID');
  40
  41 // this is a list of requests that don't necessarily need a valid BE user
  42 $noUserAjaxIDs = array(
  43         'BackendLogin::login',
  44         'BackendLogin::logout',
  45         'BackendLogin::refreshLogin',
  46         'BackendLogin::isTimedOut',
  47         'BackendLogin::getChallenge',
  48 );
  49
  50 // if we're trying to do an ajax login, don't require a user.
  51 if(in_array($ajaxID, $noUserAjaxIDs)) {
  52         define('TYPO3_PROCEED_IF_NO_USER', 2);
  53 }
  54
  55 require('init.php');
  56 require('classes/class.typo3ajax.php');
  57
  58         // finding the script path from the variable
  59 $ajaxScript = $TYPO3_CONF_VARS['BE']['AJAX'][$ajaxID];
  60
  61
  62         // instantiating the AJAX object
  63 $ajaxObj    = t3lib_div::makeInstance('TYPO3AJAX', $ajaxID);
  64 $ajaxParams = array();
  65
  66
  67         // evaluating the arguments and calling the AJAX method/function
  68 if (empty($ajaxID)) {
  69         $ajaxObj->setError('No valid ajaxID parameter given.');
  70 } else if (empty($ajaxScript)) {
  71         $ajaxObj->setError('No backend function registered for ajaxID "'.$ajaxID.'".');
  72 } else {
  73         $ret = t3lib_div::callUserFunction($ajaxScript, $ajaxParams, $ajaxObj, false, true);
  74         if ($ret === false) {
  75                 $ajaxObj->setError('Registered backend function for ajaxID "'.$ajaxID.'" was not found.');
  76         }
  77 }
  78
  79         // outputting the content (and setting the X-JSON-Header)
  80 $ajaxObj->render();
  81
  82 ?>