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- <?php
- // $Id: textsanitizer.php 669 2006-08-25 22:14:09Z skalpa $
- // ------------------------------------------------------------------------ //
- // XOOPS - PHP Content Management System //
- // Copyright (c) 2000 XOOPS.org //
- // <http://www.xoops.org/> //
- // ------------------------------------------------------------------------ //
- // This program 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. //
- // //
- // You may not change or alter any portion of this comment or credits //
- // of supporting developers from this source code or any supporting //
- // source code which is considered copyrighted (c) material of the //
- // original comment or credit authors. //
- // //
- // This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA //
- // ------------------------------------------------------------------------ //
- // Author: Kazumi Ono (http://www.myweb.ne.jp/, http://jp.xoops.org/) //
- // Goghs Cheng (http://www.eqiao.com, http://www.devbeez.com/) //
- // Project: The XOOPS Project (http://www.xoops.org/) //
- // ------------------------------------------------------------------------- //
- // This is subset and modified version of module.textsanitizer.php
- set_magic_quotes_runtime(0);
-
- class TextSanitizer
- {
-
- /*
- * Constructor of this class
- * Gets allowed html tags from admin config settings
- * <br> should not be allowed since nl2br will be used
- * when storing data
- */
- function TextSanitizer()
- {
-
- }
-
- function &getInstance()
- {
- static $instance;
- if (!isset($instance)) {
- $instance = new TextSanitizer();
- }
- return $instance;
- }
-
- function &makeClickable(&$text)
- {
- $patterns = array("/([^]_a-z0-9-=\"'\/])([a-z]+?):\/\/([^, \r\n\"\(\)'<>]+)/i", "/([^]_a-z0-9-=\"'\/])www\.([a-z0-9\-]+)\.([^, \r\n\"\(\)'<>]+)/i", "/([^]_a-z0-9-=\"'\/])([a-z0-9\-_.]+?)@([^, \r\n\"\(\)'<>]+)/i");
- $replacements = array("\\1<a href=\"\\2://\\3\" target=\"_blank\">\\2://\\3</a>", "\\1<a href=\"http://www.\\2.\\3\" target=\"_blank\">www.\\2.\\3</a>", "\\1<a href=\"mailto:\\2@\\3\">\\2@\\3</a>");
- return preg_replace($patterns, $replacements, $text);
- }
-
- function &nl2Br($text)
- {
- return preg_replace("/(\015\012)|(\015)|(\012)/","<br />",$text);
- }
-
- function &addSlashes($text, $force=false)
- {
- if ($force) {
- return addslashes($text);
- }
- if (!get_magic_quotes_gpc()) {
- $text = addslashes($text);
- }
- return $text;
- }
-
- /*
- * if magic_quotes_gpc is on, stirip back slashes
- */
- function &stripSlashesGPC($text)
- {
- if (get_magic_quotes_gpc()) {
- $text = stripslashes($text);
- }
- return $text;
- }
-
- /*
- * for displaying data in html textbox forms
- */
- function htmlSpecialChars($text)
- {
- return preg_replace("/&/i", '&', htmlspecialchars($text, ENT_QUOTES));
- }
-
- function undoHtmlSpecialChars(&$text)
- {
- return preg_replace(array("/>/i", "/</i", "/"/i", "/'/i"), array(">", "<", "\"", "'"), $text);
- }
-
- /*
- * Filters textarea form data in DB for display
- */
- function &displayText($text, $html=false)
- {
- if (! $html) {
- // html not allowed
- $text =& $this->htmlSpecialChars($text);
- }
- $text =& $this->makeClickable($text);
- $text =& $this->nl2Br($text);
- return $text;
- }
-
- /*
- * Filters textarea form data submitted for preview
- */
- function &previewText($text, $html=false)
- {
- $text =& $this->stripSlashesGPC($text);
- return $this->displayText($text, $html);
- }
-
- ##################### Deprecated Methods ######################
-
- function sanitizeForDisplay($text, $allowhtml = 0, $smiley = 1, $bbcode = 1)
- {
- if ( $allowhtml == 0 ) {
- $text = $this->htmlSpecialChars($text);
- } else {
- //$config =& $GLOBALS['xoopsConfig'];
- //$allowed = $config['allowed_html'];
- //$text = strip_tags($text, $allowed);
- $text = $this->makeClickable($text);
- }
- if ( $smiley == 1 ) {
- $text = $this->smiley($text);
- }
- if ( $bbcode == 1 ) {
- $text = $this->xoopsCodeDecode($text);
- }
- $text = $this->nl2Br($text);
- return $text;
- }
-
- function sanitizeForPreview($text, $allowhtml = 0, $smiley = 1, $bbcode = 1)
- {
- $text = $this->oopsStripSlashesGPC($text);
- if ( $allowhtml == 0 ) {
- $text = $this->htmlSpecialChars($text);
- } else {
- //$config =& $GLOBALS['xoopsConfig'];
- //$allowed = $config['allowed_html'];
- //$text = strip_tags($text, $allowed);
- $text = $this->makeClickable($text);
- }
- if ( $smiley == 1 ) {
- $text = $this->smiley($text);
- }
- if ( $bbcode == 1 ) {
- $text = $this->xoopsCodeDecode($text);
- }
- $text = $this->nl2Br($text);
- return $text;
- }
-
- function makeTboxData4Save($text)
- {
- //$text = $this->undoHtmlSpecialChars($text);
- return $this->addSlashes($text);
- }
-
- function makeTboxData4Show($text, $smiley=0)
- {
- $text = $this->htmlSpecialChars($text);
- return $text;
- }
-
- function makeTboxData4Edit($text)
- {
- return $this->htmlSpecialChars($text);
- }
-
- function makeTboxData4Preview($text, $smiley=0)
- {
- $text = $this->stripSlashesGPC($text);
- $text = $this->htmlSpecialChars($text);
- return $text;
- }
-
- function makeTboxData4PreviewInForm($text)
- {
- $text = $this->stripSlashesGPC($text);
- return $this->htmlSpecialChars($text);
- }
-
- function makeTareaData4Save($text)
- {
- return $this->addSlashes($text);
- }
-
- function &makeTareaData4Show(&$text, $html=1, $smiley=1, $xcode=1)
- {
- return $this->displayTarea($text, $html, $smiley, $xcode);
- }
-
- function makeTareaData4Edit($text)
- {
- return htmlSpecialChars($text, ENT_QUOTES);
- }
-
- function &makeTareaData4Preview(&$text, $html=1, $smiley=1, $xcode=1)
- {
- return $this->previewTarea($text, $html, $smiley, $xcode);
- }
-
- function makeTareaData4PreviewInForm($text)
- {
- //if magic_quotes_gpc is on, do stipslashes
- $text = $this->stripSlashesGPC($text);
- return htmlSpecialChars($text, ENT_QUOTES);
- }
-
- function makeTareaData4InsideQuotes($text)
- {
- return $this->htmlSpecialChars($text);
- }
-
- function &oopsStripSlashesGPC($text)
- {
- return $this->stripSlashesGPC($text);
- }
-
- function &oopsStripSlashesRT($text)
- {
- if (get_magic_quotes_runtime()) {
- $text =& stripslashes($text);
- }
- return $text;
- }
-
- function &oopsAddSlashes($text)
- {
- return $this->addSlashes($text);
- }
-
- function &oopsHtmlSpecialChars($text)
- {
- return $this->htmlSpecialChars($text);
- }
-
- function &oopsNl2Br($text)
- {
- return $this->nl2br($text);
- }
- }
- ?>