Skip to content
Fetching contributors…
Cannot retrieve contributors at this time
217 lines (190 sloc) 5.54 KB
<?php
/**
* @package Joomla.Platform
* @subpackage Filter
*
* @copyright Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
/**
* JFilterOutput
*
* @package Joomla.Platform
* @subpackage Filter
* @since 11.1
*/
class JFilterOutput
{
/**
* Makes an object safe to display in forms
*
* Object parameters that are non-string, array, object or start with underscore
* will be converted
*
* @param object &$mixed An object to be parsed
* @param integer $quote_style The optional quote style for the htmlspecialchars function
* @param mixed $exclude_keys An optional string single field name or array of field names not
* to be parsed (eg, for a textarea)
*
* @return void
*
* @since 11.1
*/
public static function objectHTMLSafe(&$mixed, $quote_style = ENT_QUOTES, $exclude_keys = '')
{
if (is_object($mixed))
{
foreach (get_object_vars($mixed) as $k => $v)
{
if (is_array($v) || is_object($v) || $v == null || substr($k, 1, 1) == '_')
{
continue;
}
if (is_string($exclude_keys) && $k == $exclude_keys)
{
continue;
}
elseif (is_array($exclude_keys) && in_array($k, $exclude_keys))
{
continue;
}
$mixed->$k = htmlspecialchars($v, $quote_style, 'UTF-8');
}
}
}
/**
* This method processes a string and replaces all instances of & with &amp; in links only.
*
* @param string $input String to process
*
* @return string Processed string
*
* @since 11.1
*/
public static function linkXHTMLSafe($input)
{
$regex = 'href="([^"]*(&(amp;){0})[^"]*)*?"';
return preg_replace_callback("#$regex#i", array('JFilterOutput', '_ampReplaceCallback'), $input);
}
/**
* This method processes a string and replaces all accented UTF-8 characters by unaccented
* ASCII-7 "equivalents", whitespaces are replaced by hyphens and the string is lowercase.
*
* @param string $string String to process
*
* @return string Processed string
*
* @since 11.1
*/
public static function stringURLSafe($string)
{
// Remove any '-' from the string since they will be used as concatenaters
$str = str_replace('-', ' ', $string);
$lang = JFactory::getLanguage();
$str = $lang->transliterate($str);
// Trim white spaces at beginning and end of alias and make lowercase
$str = trim(JString::strtolower($str));
// Remove any duplicate whitespace, and ensure all characters are alphanumeric
$str = preg_replace('/(\s|[^A-Za-z0-9\-])+/', '-', $str);
// Trim dashes at beginning and end of alias
$str = trim($str, '-');
return $str;
}
/**
* This method implements unicode slugs instead of transliteration.
*
* @param string $string String to process
*
* @return string Processed string
*
* @since 11.1
*/
public static function stringURLUnicodeSlug($string)
{
// Replace double byte whitespaces by single byte (East Asian languages)
$str = preg_replace('/\xE3\x80\x80/', ' ', $string);
// Remove any '-' from the string as they will be used as concatenator.
// Would be great to let the spaces in but only Firefox is friendly with this
$str = str_replace('-', ' ', $str);
// Replace forbidden characters by whitespaces
$str = preg_replace('#[:\#\*"@+=;!><&\.%()\]\/\'\\\\|\[]#', "\x20", $str);
// Delete all '?'
$str = str_replace('?', '', $str);
// Trim white spaces at beginning and end of alias and make lowercase
$str = trim(JString::strtolower($str));
// Remove any duplicate whitespace and replace whitespaces by hyphens
$str = preg_replace('#\x20+#', '-', $str);
return $str;
}
/**
* Replaces &amp; with & for XHTML compliance
*
* @param string $text Text to process
*
* @return string Processed string.
*
* @since 11.1
*
* @todo There must be a better way???
*/
public static function ampReplace($text)
{
$text = str_replace('&&', '*--*', $text);
$text = str_replace('&#', '*-*', $text);
$text = str_replace('&amp;', '&', $text);
$text = preg_replace('|&(?![\w]+;)|', '&amp;', $text);
$text = str_replace('*-*', '&#', $text);
$text = str_replace('*--*', '&&', $text);
return $text;
}
/**
* Callback method for replacing & with &amp; in a string
*
* @param string $m String to process
*
* @return string Replaced string
*
* @since 11.1
*/
public static function _ampReplaceCallback($m)
{
$rx = '&(?!amp;)';
return preg_replace('#' . $rx . '#', '&amp;', $m[0]);
}
/**
* Cleans text of all formatting and scripting code
*
* @param string &$text Text to clean
*
* @return string Cleaned text.
*
* @since 11.1
*/
public static function cleanText(&$text)
{
$text = preg_replace("'<script[^>]*>.*?</script>'si", '', $text);
$text = preg_replace('/<a\s+.*?href="([^"]+)"[^>]*>([^<]+)<\/a>/is', '\2 (\1)', $text);
$text = preg_replace('/<!--.+?-->/', '', $text);
$text = preg_replace('/{.+?}/', '', $text);
$text = preg_replace('/&nbsp;/', ' ', $text);
$text = preg_replace('/&amp;/', ' ', $text);
$text = preg_replace('/&quot;/', ' ', $text);
$text = strip_tags($text);
$text = htmlspecialchars($text, ENT_COMPAT, 'UTF-8');
return $text;
}
/**
* Strip img-tags from string
*
* @param string $string Sting to be cleaned.
*
* @return string Cleaned string
*
* @since 11.1
*/
public static function stripImages($string)
{
return preg_replace('#(<[/]?img.*>)#U', '', $string);
}
}
Something went wrong with that request. Please try again.