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<?php
/**
* @package JCE
* @copyright Copyright (c) 2009-2014 Ryan Demmer. All rights reserved.
* @license GNU/GPL 2 or later - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* JCE is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
*/
defined('_JEXEC') or die('RESTRICTED');
abstract class WFUtility {
public static function getExtension($path) {
$dot = strrpos($path, '.') + 1;
return substr($path, $dot);
}
public static function stripExtension($path) {
$dot = strrpos($path, '.');
return substr($path, 0, $dot);
}
public static function cleanPath($path, $ds = DIRECTORY_SEPARATOR, $prefix = '') {
$path = trim(urldecode($path));
// check for UNC path on IIS and set prefix
if ($ds == '\\' && $path[0] == '\\' && $path[1] == '\\') {
$prefix = "\\";
}
// clean path, removing double slashes, replacing back/forward slashes with DIRECTORY_SEPARATOR
$path = preg_replace('#[/\\\\]+#', $ds, $path);
// return path with prefix if any
return $prefix . $path;
}
/**
* Append a DIRECTORY_SEPARATOR to the path if required.
* @param string $path the path
* @param string $ds optional directory seperator
* @return string path with trailing DIRECTORY_SEPARATOR
*/
public static function fixPath($path, $ds = DIRECTORY_SEPARATOR) {
return self::cleanPath($path . $ds);
}
private static function checkCharValue($string) {
if (preg_match('#([^\w\.\-~\/\\\\\s ])#i', $string, $matches)) {
foreach ($matches as $match) {
// not a safe UTF-8 character
if (ord($match) < 127) {
return false;
}
}
}
return true;
}
public static function checkPath($path) {
$path = urldecode($path);
if (self::checkCharValue($path) === false || strpos($path, '..') !== false) {
JError::raiseError(403, 'INVALID PATH'); // don't translate
exit();
}
}
/**
* Concat two paths together. Basically $a + $b
* @param string $a path one
* @param string $b path two
* @param string $ds optional directory seperator
* @return string $a DIRECTORY_SEPARATOR $b
*/
public static function makePath($a, $b, $ds = DIRECTORY_SEPARATOR) {
return self::cleanPath($a . $ds . $b, $ds);
}
private static function utf8_latin_to_ascii($subject) {
static $CHARS = NULL;
if (is_null($CHARS)) {
$CHARS = array(
'À' => 'A', 'Á' => 'A', 'Â' => 'A', 'Ã' => 'A', 'Ä' => 'A', 'Å' => 'A', 'Æ' => 'AE',
'Ç' => 'C', 'È' => 'E', 'É' => 'E', 'Ê' => 'E', 'Ë' => 'E', 'Ì' => 'I', 'Í' => 'I', 'Î' => 'I', 'Ï' => 'I',
'Ð' => 'D', 'Ñ' => 'N', 'Ò' => 'O', 'Ó' => 'O', 'Ô' => 'O', 'Õ' => 'O', 'Ö' => 'O', 'Ø' => 'O',
'Ù' => 'U', 'Ú' => 'U', 'Û' => 'U', 'Ü' => 'U', 'Ý' => 'Y', 'ß' => 's',
'à' => 'a', 'á' => 'a', 'â' => 'a', 'ã' => 'a', 'ä' => 'a', 'å' => 'a', 'æ' => 'ae',
'ç' => 'c', 'è' => 'e', 'é' => 'e', 'ê' => 'e', 'ë' => 'e', 'ì' => 'i', 'í' => 'i', 'î' => 'i', 'ï' => 'i',
'ñ' => 'n', 'ò' => 'o', 'ó' => 'o', 'ô' => 'o', 'õ' => 'o', 'ö' => 'o', 'ø' => 'o', 'ù' => 'u', 'ú' => 'u', 'û' => 'u', 'ü' => 'u',
'ý' => 'y', 'ÿ' => 'y', 'Ā' => 'A', 'ā' => 'a', 'Ă' => 'A', 'ă' => 'a', 'Ą' => 'A', 'ą' => 'a',
'Ć' => 'C', 'ć' => 'c', 'Ĉ' => 'C', 'ĉ' => 'c', 'Ċ' => 'C', 'ċ' => 'c', 'Č' => 'C', 'č' => 'c', 'Ď' => 'D', 'ď' => 'd', 'Đ' => 'D', 'đ' => 'd',
'Ē' => 'E', 'ē' => 'e', 'Ĕ' => 'E', 'ĕ' => 'e', 'Ė' => 'E', 'ė' => 'e', 'Ę' => 'E', 'ę' => 'e', 'Ě' => 'E', 'ě' => 'e',
'Ĝ' => 'G', 'ĝ' => 'g', 'Ğ' => 'G', 'ğ' => 'g', 'Ġ' => 'G', 'ġ' => 'g', 'Ģ' => 'G', 'ģ' => 'g', 'Ĥ' => 'H', 'ĥ' => 'h', 'Ħ' => 'H', 'ħ' => 'h',
'Ĩ' => 'I', 'ĩ' => 'i', 'Ī' => 'I', 'ī' => 'i', 'Ĭ' => 'I', 'ĭ' => 'i', 'Į' => 'I', 'į' => 'i', 'İ' => 'I', 'ı' => 'i',
'IJ' => 'IJ', 'ij' => 'ij', 'Ĵ' => 'J', 'ĵ' => 'j', 'Ķ' => 'K', 'ķ' => 'k', 'Ĺ' => 'L', 'ĺ' => 'l', 'Ļ' => 'L', 'ļ' => 'l', 'Ľ' => 'L', 'ľ' => 'l', 'Ŀ' => 'L', 'ŀ' => 'l', 'Ł' => 'l', 'ł' => 'l',
'Ń' => 'N', 'ń' => 'n', 'Ņ' => 'N', 'ņ' => 'n', 'Ň' => 'N', 'ň' => 'n', 'ʼn' => 'n', 'Ō' => 'O', 'ō' => 'o', 'Ŏ' => 'O', 'ŏ' => 'o', 'Ő' => 'O', 'ő' => 'o', 'Œ' => 'OE', 'œ' => 'oe',
'Ŕ' => 'R', 'ŕ' => 'r', 'Ŗ' => 'R', 'ŗ' => 'r', 'Ř' => 'R', 'ř' => 'r', 'Ś' => 'S', 'ś' => 's', 'Ŝ' => 'S', 'ŝ' => 's', 'Ş' => 'S', 'ş' => 's', 'Š' => 'S', 'š' => 's',
'Ţ' => 'T', 'ţ' => 't', 'Ť' => 'T', 'ť' => 't', 'Ŧ' => 'T', 'ŧ' => 't', 'Ũ' => 'U', 'ũ' => 'u', 'Ū' => 'U', 'ū' => 'u', 'Ŭ' => 'U', 'ŭ' => 'u', 'Ů' => 'U', 'ů' => 'u', 'Ű' => 'U', 'ű' => 'u', 'Ų' => 'U', 'ų' => 'u',
'Ŵ' => 'W', 'ŵ' => 'w', 'Ŷ' => 'Y', 'ŷ' => 'y', 'Ÿ' => 'Y', 'Ź' => 'Z', 'ź' => 'z', 'Ż' => 'Z', 'ż' => 'z', 'Ž' => 'Z', 'ž' => 'z', 'ſ' => 's', 'ƒ' => 'f', 'Ơ' => 'O', 'ơ' => 'o', 'Ư' => 'U', 'ư' => 'u',
'Ǎ' => 'A', 'ǎ' => 'a', 'Ǐ' => 'I', 'ǐ' => 'i', 'Ǒ' => 'O', 'ǒ' => 'o', 'Ǔ' => 'U', 'ǔ' => 'u', 'Ǖ' => 'U', 'ǖ' => 'u', 'Ǘ' => 'U', 'ǘ' => 'u', 'Ǚ' => 'U', 'ǚ' => 'u', 'Ǜ' => 'U', 'ǜ' => 'u',
'Ǻ' => 'A', 'ǻ' => 'a', 'Ǽ' => 'AE', 'ǽ' => 'ae', 'Ǿ' => 'O', 'ǿ' => 'o'
);
}
return str_replace(array_keys($CHARS), array_values($CHARS), $subject);
}
protected static function changeCase($string, $case) {
if (!function_exists('mb_strtolower') || !function_exists('mb_strtoupper')) {
return $string;
}
if (is_array($string)) {
foreach ($string as $value) {
$value = self::changeCase($value, $case);
}
} else {
switch ($case) {
case 'lowercase':
$string = mb_strtolower($string);
break;
case 'uppercase':
$string = mb_strtoupper($string);
break;
}
}
return $string;
}
/**
* Makes file name safe to use
* @param mixed The name of the file (not full path)
* @return mixed The sanitised string or array
*/
public static function makeSafe($subject, $mode = 'utf-8', $allowspaces = false, $case = '') {
$search = array();
// replace spaces with underscore
if (!$allowspaces) {
$subject = preg_replace('#[\s ]#', '_', $subject);
}
switch ($mode) {
default:
case 'utf-8':
$search[] = '#[^a-zA-Z0-9_\.\-~\p{L}\p{N}\s ]#u';
$mode = 'utf-8';
break;
case 'ascii':
$subject = self::utf8_latin_to_ascii($subject);
$search[] = '#[^a-zA-Z0-9_\.\-~\s ]#';
break;
}
// remove multiple . characters
$search[] = '#(\.){2,}#';
// strip leading period
$search[] = '#^\.#';
// strip trailing period
$search[] = '#\.$#';
// strip whitespace
$search[] = '#^\s*|\s*$#';
// only for utf-8 to avoid PCRE errors - PCRE must be at least version 5
if ($mode == 'utf-8') {
try {
$result = preg_replace($search, '', $subject);
} catch (Exception $e) {
// try ascii
return self::makeSafe($subject, 'ascii');
}
// try ascii
if (is_null($result) || $result === false) {
return self::makeSafe($subject, 'ascii');
}
if ($case) {
// change case
$result = self::changeCase($result, $case);
}
return $result;
}
$result = preg_replace($search, '', $subject);
if ($case) {
// change case
$result = self::changeCase($result, $case);
}
return $result;
}
/**
* Format the file size, limits to Mb.
* @param int $size the raw filesize
* @return string formated file size.
*/
public static function formatSize($size) {
if ($size < 1024) {
return $size . ' ' . WFText::_('WF_LABEL_BYTES');
} else if ($size >= 1024 && $size < 1024 * 1024) {
return sprintf('%01.2f', $size / 1024.0) . ' ' . WFText::_('WF_LABEL_KB');
} else {
return sprintf('%01.2f', $size / (1024.0 * 1024)) . ' ' . WFText::_('WF_LABEL_MB');
}
}
/**
* Format the date.
* @param int $date the unix datestamp
* @return string formated date.
*/
public static function formatDate($date, $format = "%d/%m/%Y, %H:%M") {
return strftime($format, $date);
}
/**
* Get the modified date of a file
*
* @return Formatted modified date
* @param string $file Absolute path to file
*/
public static function getDate($file) {
return self::formatDate(@filemtime($file));
}
/**
* Get the size of a file
*
* @return Formatted filesize value
* @param string $file Absolute path to file
*/
public static function getSize($file) {
return self::formatSize(@filesize($file));
}
public static function isUtf8($string) {
if (!function_exists('mb_detect_encoding')) {
// From http://w3.org/International/questions/qa-forms-utf-8.html
return preg_match('%^(?:
[\x09\x0A\x0D\x20-\x7E] # ASCII
| [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte
| \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates
| \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3
| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
)*$%xs', $string);
}
return mb_detect_encoding($string, 'UTF-8', true);
}
/**
* Convert size value to bytes
*/
public static function convertSize($value) {
// Convert to bytes
switch (strtolower($value{strlen($value) - 1})) {
case 'g':
$value = intval($value) * 1073741824;
break;
case 'm':
$value = intval($value) * 1048576;
break;
case 'k':
$value = intval($value) * 1024;
break;
}
return $value;
}
}
?>