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<?php
/**
* @package info.ajaxplorer
*
* Copyright 2007-2009 Charles du Jeu, Cyril Russo
* This file is part of AjaXplorer.
* The latest code can be found at http://www.ajaxplorer.info/
*
* This program is published under the LGPL Gnu Lesser General Public License.
* You should have received a copy of the license along with AjaXplorer.
*
* The main conditions are as follow :
* You must conspicuously and appropriately publish on each copy distributed
* an appropriate copyright notice and disclaimer of warranty and keep intact
* all the notices that refer to this License and to the absence of any warranty;
* and give any other recipients of the Program a copy of the GNU Lesser General
* Public License along with the Program.
*
* If you modify your copy or copies of the library or any portion of it, you may
* distribute the resulting library provided you do so under the GNU Lesser
* General Public License. However, programs that link to the library may be
* licensed under terms of your choice, so long as the library itself can be changed.
* Any translation of the GNU Lesser General Public License must be accompanied by the
* GNU Lesser General Public License.
*
* If you copy or distribute the program, you must accompany it with the complete
* corresponding machine-readable source code or with a written offer, valid for at
* least three years, to furnish the complete corresponding machine-readable source code.
*
* Any of the above conditions can be waived if you get permission from the copyright holder.
* AjaXplorer 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.
*
* Description : static methods for handling charset conversions.
*/
class SystemTextEncoding
{
function changeCharset($inputCharset, $outputCharset, $text)
{
if ($inputCharset == $outputCharset) return $text;
// Due to iconv bug when dealing with text with non ASCII encoding for last char, we use this workaround http://fr.php.net/manual/fr/function.iconv.php#81494
if(function_exists("iconv"))
{
return iconv($inputCharset, $outputCharset, $text);
}else
{
$content = @htmlentities($text, ENT_QUOTES, $inputCharset);
return @html_entity_decode($content, ENT_QUOTES , $outputCharset);
}
}
function parseCharset($locale)
{
$encoding = substr(strrchr($locale, "."), 1);
if (is_numeric($encoding))
{
if (substr($encoding, 0, 2) == "12") // CP12xx are changed to Windows-12xx to allow PHP4 conversion
$encoding = "windows-".$encoding;
else $encoding = "CP".$encoding; // In other cases, PHP4 won't work anyway, so use CPxxxx encoding (that iconv supports)
} else if ($locale == "C")
{ // Locale not set correctly, most probable error cause is /etc/init.d/apache having "LANG=C" defined
// In any case, "C" is ASCII-7 bit so it's safe to use the extra bit as if it was UTF-8
$encoding = "UTF-8";
}
if (!strlen($encoding)) $encoding = "UTF-8";
return $encoding;
}
function getEncoding(){
global $_SESSION;
// Check if the session get an assigned charset encoding (it's the case for remote SSH for example)
if (isset($_SESSION["AJXP_CHARSET"]) && strlen($_SESSION["AJXP_CHARSET"])) return $_SESSION["AJXP_CHARSET"];
// Get the current locale (expecting the filesystem is in the same locale, as the standard says)
return SystemTextEncoding::parseCharset(setlocale(LC_CTYPE, 0));
}
function fromUTF8($filesystemElement){
$enc = SystemTextEncoding::getEncoding();
return SystemTextEncoding::changeCharset("UTF-8", $enc, $filesystemElement);
}
/** This function is used when the server's PHP configuration is using magic quote */
function magicDequote($text)
{
// If the PHP server enables magic quotes, remove them
if (get_magic_quotes_gpc())
return stripslashes($text);
return $text;
}
function fromPostedFileName($filesystemElement)
{
return SystemTextEncoding::fromUTF8(SystemTextEncoding::magicDequote($filesystemElement));
}
function toUTF8($filesystemElement){
$enc = SystemTextEncoding::getEncoding();
return SystemTextEncoding::changeCharset($enc, "UTF-8", $filesystemElement);
}
}
?>
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