(feature) Added #7096: Consistent interface for AJAX calls in the TYPO3 Backend
[Packages/TYPO3.CMS.git] / typo3 / ajax.php
1 <?php
2 /***************************************************************
3 * Copyright notice
4 *
5 * (c) 2007-2008 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 require('init.php');
36 require('classes/class.typo3ajax.php');
37
38
39 // finding the script path from the variable
40 $ajaxID = (string) t3lib_div::_GP('ajaxID');
41 $ajaxScript = $TYPO3_CONF_VARS['BE']['AJAX'][$ajaxID];
42
43
44 // instantiating the AJAX object
45 $ajaxObj =& t3lib_div::makeInstance('TYPO3AJAX');
46 $ajaxObj->init($ajaxID);
47 $ajaxParams = array();
48
49
50 // evaluating the arguments and calling the AJAX method/function
51 if (empty($ajaxID)) {
52 $ajaxObj->setError('No valid ajaxID parameter given.');
53 } else if (empty($ajaxScript)) {
54 $ajaxObj->setError('Registered backend function for ajaxID "'.$ajaxID.'" was not found.');
55 } else {
56 $ret = t3lib_div::callUserFunction($ajaxScript, $ajaxParams, $ajaxObj, false, true);
57 if ($ret === false) {
58 $ajaxObj->setError('Registered backend function for ajaxID "'.$ajaxID.'" was not found.');
59 }
60 }
61
62 // outputting the content (and setting the X-JSON-Header)
63 $ajaxObj->render();
64
65 ?>