<?php
/**
 * language reading
 * read the language wich is passed as a parameter in the url and if
 * it is not available read the default language
 *
 * PHP version 5
 *
 * @category  PHP
 * @package   PSI_Language
 * @author    Michael Cramer <BigMichi1@users.sourceforge.net>
 * @copyright 2009 phpSysInfo
 * @license   http://opensource.org/licenses/gpl-2.0.php GNU General Public License version 2, or (at your option) any later version
 * @version   SVN: $Id: language.php 661 2012-08-27 11:26:39Z namiltd $
 * @link      http://phpsysinfo.sourceforge.net
 */

// Set the correct content-type header.
header('Content-Type: text/xml');

/**
 * default language
 *
 * @var String
 */
$lang = 'en';

/**
 * default pluginname
 *
 * @var String
 */
$plugin = '';

/**
 * application root path
 *
 * @var string
 */
define('PSI_APP_ROOT', realpath(dirname((__FILE__)).'/../'));

include_once PSI_APP_ROOT.'/read_config.php';

if (defined('PSI_DEFAULT_LANG')) {
    $lang = PSI_DEFAULT_LANG;
}

if (isset($_GET['lang']) && (trim($_GET['lang'])!=="")
   && !preg_match('/[^A-Za-z\-]/', $_GET['lang'])
   && file_exists(PSI_APP_ROOT.'/language/'.$_GET['lang'].'.xml')) {
    $lang = strtolower($_GET['lang']);
}

if (isset($_GET['plugin'])) {
   if ((trim($_GET['plugin'])!=="") && !preg_match('/[^A-Za-z]/', $_GET['plugin'])) {
       $plugin = strtolower($_GET['plugin']);
        if (file_exists(PSI_APP_ROOT.'/plugins/'.$plugin.'/lang/'.$lang.'.xml')) {
            echo file_get_contents(PSI_APP_ROOT.'/plugins/'.$plugin.'/lang/'.$lang.'.xml');
        } elseif (file_exists(PSI_APP_ROOT.'/plugins/'.$plugin.'/lang/en.xml')) {
            echo file_get_contents(PSI_APP_ROOT.'/plugins/'.$plugin.'/lang/en.xml');
        }
   }
} else {
    if (file_exists(PSI_APP_ROOT.'/language/'.$lang.'.xml')) {
        echo file_get_contents(PSI_APP_ROOT.'/language/'.$lang.'.xml');
    } else {
        echo file_get_contents(PSI_APP_ROOT.'/language/en.xml');
    }
}