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<?php
/**
* Copyright (c) STMicroelectronics, 2007. All Rights Reserved.
*
* Originally written by Mohamed CHAARI, 2007.
*
* This file is a part of codendi.
*
* codendi is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* codendi 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
define('CODENDI_PURIFIER_FORUMML', 20);
class ForumML_HTMLPurifier extends Codendi_HTMLPurifier {
/**
* Hold an instance of the class
*/
private static $ForumML_HTMLPurifier_instance;
/**
* Constructor
*/
protected function __construct() {
}
/**
* Singleton access.
* Override parent method
* @access: static
*/
public static function instance() {
//static $purifier;
if (!isset(self::$ForumML_HTMLPurifier_instance)) {
$c = __CLASS__;
self::$ForumML_HTMLPurifier_instance = new $c;
}
return self::$ForumML_HTMLPurifier_instance;
}
/**
* No basic HTML markups, no forms, no javascript
* Allow urls, auto-magic links, <blockquote> and CSS styles
*/
function getForumMLConfig() {
$config = $this->getCodendiConfig();
// allow <blockquote> html tag, used to display ForumML messages replies
$config->set('HTML.AllowedElements', 'blockquote');
// support CSS
$config->set('CSS.DefinitionRev', 1);
return $config;
}
/**
* HTML Purifier configuration factory
*/
function getHPConfig($level) {
$config = null;
switch($level) {
case CODENDI_PURIFIER_FORUMML:
$config = $this->getForumMLConfig();
break;
default:
$config = parent::getHPConfig($level);
}
return $config;
}
/**
* Perform HTML purification depending of level purification required and create links.
*/
function purify($html, $level=0, $groupId=0) {
$clean = '';
switch($level) {
case CODENDI_PURIFIER_FORUMML:
require_once($GLOBALS['htmlpurifier_dir'].'HTMLPurifier.auto.php');
$hp = HTMLPurifier::getInstance();
$config = $this->getHPConfig($level);
$clean = util_make_links($hp->purify($html, $config), $groupId);
break;
default:
$clean = parent::purify($html,$level,$groupId);
}
return $clean;
}
}
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