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<?php
/**
* JComments - Joomla Comment System
*
* @version 3.0
* @package JComments
* @author Sergey M. Litvinov (smart@joomlatune.ru)
* @copyright (C) 2006-2013 by Sergey M. Litvinov (http://www.joomlatune.ru)
* @license GNU/GPL: http://www.gnu.org/copyleft/gpl.html
*/
defined('_JEXEC') or die;
/**
* JComments common text functions
*/
class JCommentsText
{
public static function formatDate($date = 'now', $format = null, $offset = null)
{
if ($format == 'DATETIME_FORMAT') {
$format = null;
}
if (empty($format)) {
$format = JText::_('DATE_FORMAT_LC1');
}
return JHTML::_('date', $date, $format);
}
/**
* Replaces newlines with HTML line breaks
*
* @param $text string The input string.
*
* @return string Returns the altered string.
*/
public static function nl2br($text)
{
$text = preg_replace(array('/\r/u', '/^\n+/u', '/\n+$/u'), '', $text);
$text = str_replace("\n", '<br />', $text);
return $text;
}
/**
* Replaces HTML line breaks with newlines
*
* @param $text string The input string.
*
* @return string Returns the altered string.
*/
public static function br2nl($text)
{
return str_replace('<br />', "\n", $text);
}
/**
* Escapes input string with slashes to use it in JavaScript
*
* @param $text string The input string.
*
* @return string Returns the altered string.
*/
public static function jsEscape($text)
{
return addcslashes($text, "\\\\&\"\n\r<>'");
}
/**
* @param string $str The input string.
* @param int $width The column width.
* @param string $break The line is broken using the optional break parameter.
* @param bool $cut If the cut is set to TRUE, the string is always wrapped at the specified width. So if you have a word that is larger than the given width, it is broken apart.
*
* @return string
*/
public static function wordwrap($str, $width, $break, $cut = false)
{
if (!$cut) {
$regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){' . $width . ',}\b#U';
} else {
$regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){' . $width . '}#';
}
$i = 1;
$j = ceil(JCommentsText::strlen($str) / $width);
$return = '';
while ($i < $j) {
preg_match($regexp, $str, $matches);
$return .= $matches[0] . $break;
$str = JString::substr($str, JCommentsText::strlen($matches[0]));
$i++;
}
return $return . $str;
}
/**
* Inserts a separator in a very long continuous sequences of characters
*
* @param string $text The input string.
* @param int $maxLength The maximum length of sequence.
* @param string $customBreaker The custom string to be used as breaker.
*
* @return string Returns the altered string.
*/
public static function fixLongWords($text, $maxLength, $customBreaker = '')
{
$maxLength = (int)min(65535, $maxLength);
if ($maxLength > 5) {
ob_start();
if ($customBreaker == '') {
if (!empty($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'Opera') !== false) {
$breaker = '<span style="margin: 0 -0.65ex 0 -1px;padding:0;"> </span>';
} else {
$breaker = '<span style="font-size:0;padding:0;margin:0;"> </span>';
}
} else {
$breaker = $customBreaker;
}
$plainText = $text;
$plainText = preg_replace(_JC_REGEXP_EMAIL, '', $plainText);
$plainText = preg_replace('#<br\s?/?>#isu', '', $plainText);
$plainText = preg_replace('#<img[^\>]+/>#isu', '', $plainText);
$plainText = preg_replace('#<a.*?>(.*?)</a>#isu', '', $plainText);
$plainText = preg_replace('#<span class="quote">(.*?)</span>#isu', '', $plainText);
$plainText = preg_replace('#<span[^\>]*?>(.*?)</span>#isu', '\\1', $plainText);
$plainText = preg_replace('#<pre.*?>(.*?)</pre>#isUu', '', $plainText);
$plainText = preg_replace('#<blockquote.*?>(.*?)</blockquote>#isUu', '\\1 ', $plainText);
$plainText = preg_replace('#<code.*?>(.*?)</code>#isUu', '', $plainText);
$plainText = preg_replace('#<embed.*?>(.*?)</embed>#isu', '', $plainText);
$plainText = preg_replace('#<object.*?>(.*?)</object>#isu', '', $plainText);
$plainText = preg_replace('#<iframe.*?>(.*?)</iframe>#isu', '', $plainText);
$plainText = preg_replace('#(^|\s|\>|\()((http://|https://|news://|ftp://|www.)\w+[^\s\[\]\<\>\"\'\)]+)#iu', '\\1', $plainText);
$plainText = preg_replace('#<(b|strong|i|em|u|s|del|sup|sub|li)>(.*?)</(b|strong|i|em|u|s|del|sup|sub|li)>#isu', '\\2 ', $plainText);
$words = explode(' ', $plainText);
foreach ($words as $word) {
if (JCommentsText::strlen($word) > $maxLength) {
$text = str_replace($word, JCommentsText::wordwrap($word, $maxLength, $breaker, true), $text);
}
}
ob_end_clean();
}
return $text;
}
public static function url($s)
{
if (isset($s) && preg_match('/^((http|https|ftp):\/\/)?[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,6}((:[0-9]{1,5})?\/.*)?$/i',
$s)
) {
$url = preg_replace('|[^a-z0-9-~+_.?#=&;,/:]|i', '', $s);
$url = str_replace(';//', '://', $url);
if ($url != '') {
$url = (!strstr($url, '://')) ? 'http://' . $url : $url;
$url = preg_replace('/&([^#])(?![a-z]{2,8};)/', '&$1', $url);
return $url;
}
}
return '';
}
public static function censor($text)
{
if (!empty($text)) {
ob_start();
$config = JCommentsFactory::getConfig();
$words = $config->get('badwords');
$replaceWord = $config->get('censor_replace_word', '***');
if (!empty($words)) {
$words = preg_replace("#,+#", ',', preg_replace("#[\n|\r]+#", ',', $words));
$words = explode(",", $words);
if (is_array($words)) {
for ($i = 0, $n = count($words); $i < $n; $i++) {
$word = trim($words[$i]);
if ($word != '') {
$word = str_replace('#', '\#', str_replace('\#', '#', $word));
$txt = trim(preg_replace('#' . $word . '#ismu', $replaceWord, $text));
// make safe from dummy bad words list
if ($txt != '') {
$text = $txt;
}
}
}
}
}
ob_end_clean();
}
return $text;
}
/**
* Cleans text of all formatting and scripting code
*
* @param $text string The input string.
*
* @return string Returns the altered string.
*/
public static function cleanText($text)
{
$text = JCommentsFactory::getBBCode()->filter($text, true);
if (JCommentsFactory::getConfig()->getInt('enable_custom_bbcode')) {
$text = JCommentsFactory::getCustomBBCode()->filter($text, true);
}
$text = str_replace('<br />', ' ', $text);
$text = preg_replace('#(\s){2,}#ismu', '\\1', $text);
$text = preg_replace('#<script[^>]*>.*?</script>#ismu', '', $text);
$text = preg_replace('#<a\s+.*?href="([^"]+)"[^>]*>([^<]+)<\/a>#ismu', '\2 (\1)', $text);
$text = preg_replace('#<!--.+?-->#ismu', '', $text);
$text = preg_replace('# #ismu', ' ', $text);
$text = preg_replace('#&#ismu', ' ', $text);
$text = preg_replace('#"#ismu', ' ', $text);
$text = strip_tags($text);
$text = htmlspecialchars($text);
$text = html_entity_decode($text);
return $text;
}
public static function strlen($str)
{
return strlen(utf8_decode($str));
}
public static function substr($text, $length = 0)
{
return JString::substr($text, 0, $length);
}
}