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| <?php
///////////////////////////////////////////////////////////////////////////////
// module.textsanitizer.php for xpWiki renderer mode. by nao-pon (hypweb.net)
///////////////////////////////////////////////////////////////////////////////
// $Id: module.textsanitizer.php,v 1.8 2006/07/27 00:17:17 onokazu Exp $
// ------------------------------------------------------------------------ //
// 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/) //
// ------------------------------------------------------------------------- //
/**
* Class to "clean up" text for various uses
*
* <b>Singleton</b>
*
* @package kernel
* @subpackage core
*
* @author Kazumi Ono <onokazu@xoops.org>
* @author Goghs Cheng
* @copyright (c) 2000-2003 The Xoops Project - www.xoops.org
*/
class MyTextSanitizer
{
/**
* @var array
*/
var $smileys = array();
/**
*
*/
var $censorConf;
/*
* 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.
*
* @access private
*
* @todo Sofar, this does nuttin' ;-)
*/
function MyTextSanitizer()
{
}
/**
* Access the only instance of this class
*
* @return object
*
* @static
* @staticvar object
*/
function &getInstance()
{
static $instance;
if (!isset($instance)) {
$instance = new MyTextSanitizer();
}
return $instance;
}
/**
* Get the smileys
*
* @return array
*/
function getSmileys()
{
return $this->smileys;
}
/**
* Replace emoticons in the message with smiley images
*
* @param string $message
*
* @return string
*/
function &smiley($message)
{
$db =& Database::getInstance();
if (count($this->smileys) == 0) {
if ($getsmiles = $db->query("SELECT * FROM ".$db->prefix("smiles"))){
while ($smiles = $db->fetchArray($getsmiles)) {
$message = str_replace($smiles['code'], '<img src="'.XOOPS_UPLOAD_URL.'/'.htmlspecialchars($smiles['smile_url']).'" alt="" />', $message);
array_push($this->smileys, $smiles);
}
}
}
elseif (is_array($this->smileys)) {
foreach ($this->smileys as $smile) {
$message = str_replace($smile['code'], '<img src="'.XOOPS_UPLOAD_URL.'/'.htmlspecialchars($smile['smile_url']).'" alt="" />', $message);
}
}
return $message;
}
/**
* Make links in the text clickable
*
* @param string $text
* @return string
**/
function &makeClickable(&$text)
{
$patterns = array("/(^|[^]_a-z0-9-=\"'\/])([a-z]+?):\/\/([^, \r\n\"\(\)'<>]+)/i", "/(^|[^]_a-z0-9-=\"'\/])www\.([a-z0-9\-]+)\.([^, \r\n\"\(\)'<>]+)/i", "/(^|[^]_a-z0-9-=\"'\/])ftp\.([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=\"ftp://ftp.\\2.\\3\" target=\"_blank\">ftp.\\2.\\3</a>", "\\1<a href=\"mailto:\\2@\\3\">\\2@\\3</a>");
$ret = preg_replace($patterns, $replacements, $text);
return $ret;
}
/**
* Replace XoopsCodes with their equivalent HTML formatting
*
* @param string $text
* @param bool $allowimage Allow images in the text?
* On FALSE, uses links to images.
* @return string
**/
function &xoopsCodeDecode(&$text, $allowimage = 1)
{
$imgCallbackPattern = "/\[img( align=\w+)]([^\"\(\)\?\&'<>]*)\[\/img\]/sU";
$text = preg_replace_callback($imgCallbackPattern, array($this, '_filterImgUrl'), $text);
$patterns = array();
$replacements = array();
// RMV: added new markup for intrasite url (allows easier site moves)
// TODO: automatically convert other URLs to this format if XOOPS_URL matches??
$patterns[] = "/\[siteurl=(['\"]?)([^\"'<>]*)\\1](.*)\[\/siteurl\]/sU";
$replacements[] = '<a href="'.XOOPS_URL.'/\\2" target="_blank">\\3</a>';
$patterns[] = "/\[url=(['\"]?)(http[s]?:\/\/[^\"'<>]*)\\1](.*)\[\/url\]/sU";
$replacements[] = '<a href="\\2" target="_blank">\\3</a>';
$patterns[] = "/\[url=(['\"]?)(ftp?:\/\/[^\"'<>]*)\\1](.*)\[\/url\]/sU";
$replacements[] = '<a href="\\2" target="_blank">\\3</a>';
$patterns[] = "/\[url=(['\"]?)([^\"'<>]*)\\1](.*)\[\/url\]/sU";
$replacements[] = '<a href="http://\\2" target="_blank">\\3</a>';
$patterns[] = "/\[c(?:olor)?=(['\"]?)([a-zA-Z0-9]*)\\1](.*)\[\/c(?:olor)?\]/sU";
$replacements[] = '<span style="color: #\\2;">\\3</span>';
$patterns[] = "/\[size=(['\"]?)([a-z0-9-]*)\\1](.*)\[\/size\]/sU";
$replacements[] = '<span style="font-size: \\2;">\\3</span>';
$patterns[] = "/\[font=(['\"]?)([^;<>\*\(\)\"']*)\\1](.*)\[\/font\]/sU";
$replacements[] = '<span style="font-family: \\2;">\\3</span>';
$patterns[] = "/\[email]([^;<>\*\(\)\"']*)\[\/email\]/sU";
$replacements[] = '<a href="mailto:\\1">\\1</a>';
$patterns[] = "/\[b](.*)\[\/b\]/sU";
$replacements[] = '<b>\\1</b>';
$patterns[] = "/\[i](.*)\[\/i\]/sU";
$replacements[] = '<i>\\1</i>';
$patterns[] = "/\[u](.*)\[\/u\]/sU";
$replacements[] = '<u>\\1</u>';
$patterns[] = "/\[d](.*)\[\/d\]/sU";
$replacements[] = '<del>\\1</del>';
//$patterns[] = "/\[li](.*)\[\/li\]/sU";
//$replacements[] = '<li>\\1</li>';
$patterns[] = "/\[img align=(['\"]?)(left|center|right)\\1]([^\"\(\)\?\&'<>]*)\[\/img\]/sU";
$patterns[] = "/\[img]([^\"\(\)\?\&'<>]*)\[\/img\]/sU";
$patterns[] = "/\[img align=(['\"]?)(left|center|right)\\1 id=(['\"]?)([0-9]*)\\3]([^\"\(\)\?\&'<>]*)\[\/img\]/sU";
$patterns[] = "/\[img id=(['\"]?)([0-9]*)\\1]([^\"\(\)\?\&'<>]*)\[\/img\]/sU";
if ($allowimage != 1) {
$replacements[] = '<a href="\\3" target="_blank">\\3</a>';
$replacements[] = '<a href="\\1" target="_blank">\\1</a>';
$replacements[] = '<a href="'.XOOPS_URL.'/image.php?id=\\4" target="_blank">\\5</a>';
$replacements[] = '<a href="'.XOOPS_URL.'/image.php?id=\\2" target="_blank">\\3</a>';
} else {
$replacements[] = '<img src="\\3" align="\\2" alt="" />';
$replacements[] = '<img src="\\1" alt="" />';
$replacements[] = '<img src="'.XOOPS_URL.'/image.php?id=\\4" align="\\2" alt="\\5" />';
$replacements[] = '<img src="'.XOOPS_URL.'/image.php?id=\\2" alt="\\3" />';
}
$patterns[] = "/\[quote]/sU";
$replacements[] = _QUOTEC.'<div class="xoopsQuote"><blockquote>';
$patterns[] = "/\[\/quote]/sU";
$replacements[] = '</blockquote></div>';
$patterns[] = "/javascript:/si";
$replacements[] = "java script:";
$patterns[] = "/about:/si";
$replacements[] = "about :";
$ret = preg_replace($patterns, $replacements, $text);
return $ret;
}
/**
* Filters out invalid strings included in URL, if any
*
* @param array $matches
* @return string
*/
function _filterImgUrl($matches)
{
if ($this->checkUrlString($matches[2])) {
return $matches[0];
} else {
return "";
}
}
/**
* Checks if invalid strings are included in URL
*
* @param string $text
* @return bool
*/
function checkUrlString($text)
{
// Check control code
if (preg_match("/[\\0-\\31]/", $text)) {
return false;
}
// check black pattern(deprecated)
return !preg_match("/^(javascript|vbscript|about):/i", $text);
}
/**
* Convert linebreaks to <br /> tags
*
* @param string $text
*
* @return string
*/
function &nl2Br($text)
{
$ret = preg_replace("/(\015\012)|(\015)|(\012)/","<br />",$text);
return $ret;
}
/**
* Add slashes to the text if magic_quotes_gpc is turned off.
*
* @param string $text
* @return string
**/
function &addSlashes($text)
{
if (!get_magic_quotes_gpc()) {
$text = addslashes($text);
}
return $text;
}
/*
* if magic_quotes_gpc is on, stirip back slashes
*
* @param string $text
*
* @return string
*/
function &stripSlashesGPC($text)
{
if (get_magic_quotes_gpc()) {
$text = stripslashes($text);
}
return $text;
}
/*
* for displaying data in html textbox forms
*
* @param string $text
*
* @return string
*/
function &htmlSpecialChars($text)
{
//return preg_replace("/&/i", '&', htmlspecialchars($text, ENT_QUOTES));
$ret = preg_replace(array("/&/i", "/ /i"), array('&', '&nbsp;'), htmlspecialchars($text, ENT_QUOTES));
return $ret;
}
/**
* Reverses {@link htmlSpecialChars()}
*
* @param string $text
* @return string
**/
function &undoHtmlSpecialChars(&$text)
{
return preg_replace(array("/>/i", "/</i", "/"/i", "/'/i"), array(">", "<", "\"", "'"), $text);
}
// Original function
function renderWiki_getEscTags () {
return array('quote', 'color', 'font', 'size', 'b', 'c', 'd', 'i', 'u');
}
// Original function
function renderWiki_getBypassTags () {
return array('siteimg', 'fig', 'img');
}
// Original function
function &renderWikistyle($text, $html = 0, $smiley = 1, $xcode = 1, $image = 1, $br = 1, $use_cache = 0, $wikidir = 'xpwiki')
{
static $pat = array();
static $rep = array();
$className = get_class();
$br = ($br)? 1 : 0;
$use_cache = ($use_cache)? 1 : 0;
$smiley = ($smiley)? 1 : 0;
$image = ($image)? 1 : 0;
// xpWiki
if (! class_exists('XpWiki')) {
include XOOPS_TRUST_PATH . '/modules/xpwiki/include.php';
}
$render = XpWiki::getSingleton($wikidir);
// pukiwiki.ini.php setting
$render->setIniRoot('line_break', $br);
$render->setIniRoot('render_use_cache', $use_cache);
$render->setIniRoot('use_extra_facemark', 1);
$render->setIniRoot('usefacemark', $smiley);
$render->setIniRoot('render_cache_min', 1440); // 1day
$render->setIniRoot('link_target', '_blank');
$render->setIniRoot('nowikiname', 1);
$render->setIniRoot('show_passage', 0);
$render->setIniRoot('no_slashes_commentout', 1);
if ($xcode) {
if (! isset($pat[$className][$image])) {
// BB Code code
$pat[$className][$image][] = '/(?:\r\n|\r|\n)?\[code](?:\r\n|\r|\n)?(.*)(?:\r\n|\r|\n)?\[\/code\](?:\r\n|\r|\n)?/sUS';
$rep[$className][$image][] = "\n".'#code(){{{'."\n".'$1'."\n".'}}}'."\n";
// BB Code email
$pat[$className][$image][] = '/\[email](.+?)\[\/email]/iS';
$rep[$className][$image][] = '$1';
// BB Code url
$pat[$className][$image][] = '/\[url=([\'"]?)((?:ht|f)tp[s]?:\/\/[!~*\'();\/?:\@&=+\$,%#\w.-]+)\\1\](.+)\[\/url\]/esUS';
$rep[$className][$image][] = '\'[[\'.MyTextSanitizer::renderWiki_ret2br(\'$3\').\':$2]]\'';
$pat[$className][$image][] = '/\[url=([\'"]?)([!~*\'();\/?:\@&=+\$,%#\w.-]+)\\1\](.+)\[\/url\]/esUS';
$rep[$className][$image][] = '\'[[\'.MyTextSanitizer::renderWiki_ret2br(\'$3\').\':http://$2]]\'';
$pat[$className][$image][] = '/\[siteurl=([\'"]?)([!~*\'();\/?:\@&=+\$,%#\w.-]+)\\1\](.+)\[\/siteurl\]/esUS';
$rep[$className][$image][] = '\'[[\'.MyTextSanitizer::renderWiki_ret2br(\'$3\').\':http:///$2]]\'';
if ($image) {
// BB Code image with align
$pat[$className][$image][] = '/\[img\s+align=([\'"]?)(left|center|right)\\1]([!~*\'();\/?:\@&=+\$,%#\w.-]+)\[\/img\]/US';
$rep[$className][$image][] = '&ref($3,$2);';
// BB Code image normal
$pat[$className][$image][] = '/\[img]([!~*\'();\/?:\@&=+\$,%#\w.-]+)\[\/img\]/US';
$rep[$className][$image][] = '&ref($1);';
}
// Some BB Code Tags, Contents allows xpWiki rendering.
if ($_reg = join('|', $this->renderWiki_getEscTags())) {
$pat[$className][$image][] = '/\[\/?(?:' . $_reg . ')(?:(?: |=)[^\]]+)?\]/eS';
$rep[$className][$image][] = '\'[ b 6 4 ]\' . base64_encode(\'$0\') . \'[ / b 6 4 ]\'';
}
// Other or Unknown BB Code Tags, All part escapes.
if ($_reg = join('|', $this->renderWiki_getBypassTags())) {
$pat[$className][$image][] = '/\[(' . $_reg . ')(?:\s[^\]]+)?].+\[\/\\1\]/esUS';
$rep[$className][$image][] = '\'[ b 6 4 ]\' . base64_encode(\'$0\') . \'[ / b 6 4 ]\'';
}
}
$text = preg_replace($pat[$className][$image], $rep[$className][$image], $text);
}
if ($text = $render->transform($text, $wikidir)) {
if (isset($pat[$className])) {
// BB Code decode
$text = preg_replace(
'/\[ b 6 4 ](.+?)\[ \/ b 6 4 ]/eS',
'MyTextSanitizer::renderWiki_base64decode(\'$1\',\''.$render->root->word_breaker.'\')',
$text);
}
// XOOPS Quote style
$text = str_replace(
array('<blockquote>','</blockquote>'),
array(_QUOTEC.'<div class="xoopsQuote"><blockquote>','</blockquote></div>'),$text
);
}
return $text;
}
// Original function
function renderWiki_ret2br($text)
{
$text = str_replace('\\"', '"', $text);
return str_replace(array("\r\n", "\r", "\n"), '&br;', $text);
}
// Original function
function renderWiki_base64decode($text, $word_breaker) {
return str_replace(array('<','>','\\"'),array('<','>','"'),base64_decode(strip_tags(str_replace($word_breaker, '', $text))));
}
/**
* Filters textarea data for display
* (This method makes overhead but needed for compatibility)
*
* @param string $text
* @param bool $html allow html?
* @param bool $smiley allow smileys?
* @param bool $xcode allow xoopscode?
* @param bool $image allow inline images?
* @param bool $br convert linebreaks?
* @return string
**/
function _ToShowTarea($text, $html = 0, $smiley = 1, $xcode = 1, $image = 1, $br = 1, $use_cache = 0) {
if ($html != 1) {
$text = $this->renderWikistyle($text, $html, $smiley, $xcode, $image, $br, $use_cache);
} else {
$text = $this->codePreConv($text, $xcode);
$text = $this->makeClickable($text);
if ($smiley != 0) $text = $this->smiley($text);
}
if ($xcode != 0) $text = $this->xoopsCodeDecode($text, $image);
if ($html && $br != 0) $text = $this->nl2Br($text);
if ($html) $text = $this->codeConv($text, $xcode, $image);
return $text;
}
/**
* Filters textarea form data in DB for display
*
* @param string $text
* @param bool $html allow html?
* @param bool $smiley allow smileys?
* @param bool $xcode allow xoopscode?
* @param bool $image allow inline images?
* @param bool $br convert linebreaks?
* @return string
**/
function &displayTarea(&$text, $html = 0, $smiley = 1, $xcode = 1, $image = 1, $br = 1)
{
$text = $this->_ToShowTarea($text, $html, $smiley, $xcode, $image, $br, 1);
return $text;
}
/**
* Filters textarea form data submitted for preview
*
* @param string $text
* @param bool $html allow html?
* @param bool $smiley allow smileys?
* @param bool $xcode allow xoopscode?
* @param bool $image allow inline images?
* @param bool $br convert linebreaks?
* @return string
**/
function &previewTarea(&$text, $html = 0, $smiley = 1, $xcode = 1, $image = 1, $br = 1)
{
$text =& $this->stripSlashesGPC($text);
$text = $this->_ToShowTarea($text, $html, $smiley, $xcode, $image, $br, 0);
return $text;
}
/**
* Replaces banned words in a string with their replacements
*
* @param string $text
* @return string
*
* @deprecated
**/
function &censorString(&$text)
{
if (!isset($this->censorConf)) {
$config_handler =& xoops_gethandler('config');
$this->censorConf =& $config_handler->getConfigsByCat(XOOPS_CONF_CENSOR);
}
if ($this->censorConf['censor_enable'] == 1) {
$replacement = $this->censorConf['censor_replace'];
foreach ($this->censorConf['censor_words'] as $bad) {
if ( !empty($bad) ) {
$bad = quotemeta($bad);
$patterns[] = "/(\s)".$bad."/siU";
$replacements[] = "\\1".$replacement;
$patterns[] = "/^".$bad."/siU";
$replacements[] = $replacement;
$patterns[] = "/(\n)".$bad."/siU";
$replacements[] = "\\1".$replacement;
$patterns[] = "/]".$bad."/siU";
$replacements[] = "]".$replacement;
$text = preg_replace($patterns, $replacements, $text);
}
}
}
return $text;
}
/**#@+
* Sanitizing of [code] tag
*/
function codePreConv($text, $xcode = 1) {
if($xcode != 0){
$patterns = "/\[code](.*)\[\/code\]/esU";
$replacements = "'[code]'.base64_encode('$1').'[/code]'";
$text = preg_replace($patterns, $replacements, $text);
}
return $text;
}
function codeConv($text, $xcode = 1, $image = 1){
if($xcode != 0){
$patterns = "/\[code](.*)\[\/code\]/esU";
if ($image != 0) {
// image allowed
$replacements = "'<div class=\"xoopsCode\"><pre><code>'.MyTextSanitizer::codeSanitizer('$1').'</code></pre></div>'";
//$text =& $this->xoopsCodeDecode($text);
} else {
// image not allowed
$replacements = "'<div class=\"xoopsCode\"><pre><code>'.MyTextSanitizer::codeSanitizer('$1', 0).'</code></pre></div>'";
//$text =& $this->xoopsCodeDecode($text, 0);
}
$text = preg_replace($patterns, $replacements, $text);
}
return $text;
}
function codeSanitizer($str, $image = 1){
if($image != 0){
$str = $this->xoopsCodeDecode(
$this->htmlSpecialChars(str_replace('\"', '"', base64_decode($str)))
);
}else{
$str = $this->xoopsCodeDecode(
$this->htmlSpecialChars(str_replace('\"', '"', base64_decode($str))),0
);
}
return $str;
}
/**#@-*/
##################### Deprecated Methods ######################
/**#@+
* @deprecated
*/
function sanitizeForDisplay($text, $allowhtml = 0, $smiley = 1, $bbcode = 1)
{
$text =& displayTarea($text, $allowhtml, $smiley, $bbcode, 1, 1);
return $text;
}
function sanitizeForPreview($text, $allowhtml = 0, $smiley = 1, $bbcode = 1)
{
$text =& previewTarea($text, $allowhtml, $smiley, $bbcode, 1, 1);
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)
{
$ret = $this->displayTarea($text, $html, $smiley, $xcode);
return $ret;
}
function makeTareaData4Edit($text)
{
return $this->htmlSpecialChars($text);
}
function &makeTareaData4Preview(&$text, $html=1, $smiley=1, $xcode=1)
{
$ret = $this->previewTarea($text, $html, $smiley, $xcode);
return $ret;
}
function makeTareaData4PreviewInForm($text)
{
//if magic_quotes_gpc is on, do stipslashes
$text = $this->stripSlashesGPC($text);
return $this->htmlSpecialChars($text);
}
function makeTareaData4InsideQuotes($text)
{
return $this->htmlSpecialChars($text);
}
function &oopsStripSlashesGPC($text)
{
$ret = $this->stripSlashesGPC($text);
return $ret;
}
function &oopsStripSlashesRT($text)
{
if (get_magic_quotes_runtime()) {
$text =& stripslashes($text);
}
return $text;
}
function &oopsAddSlashes($text)
{
$ret = $this->addSlashes($text);
return $ret;
}
function &oopsHtmlSpecialChars($text)
{
$ret = $this->htmlSpecialChars($text);
return $ret;
}
function &oopsNl2Br($text)
{
$ret = $this->nl2br($text);
return $ret;
}
/**#@-*/
}
?>
|
XOOPS_ROOT_PATH/class/module.textsanitizer.php
module.textsanitizer.php