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<?php
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/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Sanitize.php
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*
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* @category Security
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* @package Security_Sanitize
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* @subpackage Name of the subpackage if needed
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* @copyright Manuela v.d.Decken <manuela@isteam.de>
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* @author Manuela v.d.Decken <manuela@isteam.de>
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* @license http://www.gnu.org/licenses/gpl.html GPL License
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* @version 0.0.1
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* @revision $Revision: 2 $
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* @link $HeadURL: svn://isteam.dynxs.de/wb/2.10.x/branches/main/framework/Sanitize.php $
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* @lastmodified $Date: 2017-07-02 17:14:29 +0200 (Sun, 02 Jul 2017) $
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* @since File available since 10.03.2016
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* @description this class provides several methods for sanitizing.
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*/
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class Sanitize {
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/* constants for StripFromText */
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const REMOVE_PHP = 1; // BIT #0 - remove all PHP-Code
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const REMOVE_DROPLET = 2; // BIT #1 - remove Droplet tags
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const REMOVE_COMMENT = 4; // BIT #2 - remove HTML Comments
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const REMOVE_SCRIPT = 8; // BIT #3 - remove external and internal Javascript (no inline events)
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const REMOVE_STYLES = 16; // BIT #4 - remove external and internal style sheets (no inline)
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const REMOVE_DEFAULT = 26; // a combination of BITS #1 + #3 + #4
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/** constructor */
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protected function __construct() {
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;
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}
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/**
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* remove complex elements from strings
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* @param mixed $mText string or array of strings
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* @param integer $iFlags all flags of needed functions
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* @return mixed
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*/
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public static function StripFromText($mText, $iFlags = self::REMOVE_PHP)
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{
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if (is_string($mText) || is_array($mText)) {
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$aPatterns = array(
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self::REMOVE_PHP => '/<\?php\s+.*\?>/si',
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self::REMOVE_DROPLET => '/\[\[.*?\]\]/si',
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self::REMOVE_COMMENT => '/<!--\s+.*?-->/si',
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self::REMOVE_SCRIPT => '/<script[^>]*?\/>|<script[^>]*?>.*?<\/script>/si',
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self::REMOVE_STYLES =>
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'/<style[^>]*?\/>|<style[^>]*?>.*?<\/style>|'.
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'<link[^>]*?(\"text\/css\")?(\"stylesheet\")?[^>]*?\/?>|<link[^>]*?(\"text\/css\")?(\"stylesheet\")?[^>]*?>.*?<\/style>/si',
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);
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$iFlags = intval($iFlags);
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$aSearches = array();
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for ($i = 0; $i < sizeof($aPatterns); $i++) {
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if ((pow(2, $i) & $iFlags) != 0) {
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$aSearches[] = $aPatterns[pow(2, $i)];
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}
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}
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$mText = preg_replace($aSearches, '', $mText);
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}
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return $mText;
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}
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}
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// end of class Sanitize
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