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version 2.4.5
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orynider
168
classes/Language.php
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168
classes/Language.php
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<?php
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/**
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* @package AutoIndex
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*
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* @copyright Copyright (C) 2002-2006 Justin Hagstrom
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* @license http://www.gnu.org/licenses/gpl.html GNU General Public License (GPL)
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*
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* @link http://autoindex.sourceforge.net
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*/
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/*
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AutoIndex PHP Script is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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AutoIndex PHP Script is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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if (!defined('IN_AUTOINDEX') || !IN_AUTOINDEX)
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{
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die();
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}
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/**
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* Represents a language file.
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*
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* @author Justin Hagstrom <JustinHagstrom@yahoo.com>
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* @version 1.0.0 (January 01, 2006)
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* @package AutoIndex
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*/
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class Language
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{
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/**
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* @var ConfigData Contains the translation data from the language file
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*/
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private $translation_data;
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/**
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* Returns a list of all files in $path that match the filename format
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* of language files.
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*
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* There are two valid formats for the filename of a language file. The
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* standard way is the language code then the .txt extension. You can
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* also use the language code followed by an underscore then the
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* country code. The second format would be used for dialects of
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* languages. For example pt.txt would be Portuguese, and pt_BR.txt
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* would be Brazilian Portuguese. The filenames are case insensitive.
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*
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* @param string $path The directory to read from
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* @return array The list of valid language files (based on filename)
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*/
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public static function get_all_langs($path)
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{
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if (($hndl = @opendir($path)) === false)
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{
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return false;
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}
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$list = array();
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while (($file = readdir($hndl)) !== false)
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{
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if (@is_file($path . $file) && preg_match('/^[a-z]{2}(_[a-z]{2})?'
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. preg_quote(LANGUAGE_FILE_EXT, '/') . '$/i', $file))
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{
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$list[] = $file;
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}
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}
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closedir($hndl);
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for ($i = 0; $i < count($list); $i++)
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{
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//remove the file extention from each language code
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$list[$i] = substr($list[$i], 0, -strlen(LANGUAGE_FILE_EXT));
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}
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return $list;
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}
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/**
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* @return string The code for the language to load
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*
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* First tries to use the default of the user's browser, and then tries
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* the default in the config file.
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*/
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private function get_current_lang()
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{
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//try to detect the default language of the user's browser
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if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE']))
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//e.g. "en-us,en;q=0.5"
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{
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$available_langs = self::get_all_langs(PATH_TO_LANGUAGES);
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if ($available_langs !== false)
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{
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$pref = array(); //user's preferred languages
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foreach (explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']) as $lang)
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{
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$lang_array = explode(';q=', trim($lang));
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$q = (isset($lang_array[1]) ? trim($lang_array[1]) : 1); //preference value
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$pref[trim($lang_array[0])] = (float) $q;
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}
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arsort($pref);
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//find the first match that is available:
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foreach ($pref as $lang => $q)
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{
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if (in_array($lang, $available_langs))
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{
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return $lang;
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}
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elseif (file_exists(@realpath(PATH_TO_LANGUAGES . $lang . LANGUAGE_FILE_EXT)))
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{
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return $lang;
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}
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}
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}
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}
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//the browser has no preferences set, so use the config's default
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global $config;
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return $config -> __get('language');
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}
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/**
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* Creates a new language object. First tries to use the default of
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* the user's browser, and then tries the default in the config file.
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*/
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public function __construct()
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{
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$lang_file = PATH_TO_LANGUAGES . $this -> get_current_lang()
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. LANGUAGE_FILE_EXT;
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if (!@is_readable($lang_file))
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{
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throw new ExceptionFatal('Cannot read from language file: <em>'
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. Url::html_output($lang_file) . '</em>');
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}
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//load the file as a tab-separated object
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$this -> translation_data = new ConfigData($lang_file);
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}
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/**
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* @param string $name The word to look for
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* @return bool True if $name is set in the translation file
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*/
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public function is_set($name)
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{
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return $translation_data -> is_set($name);
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}
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/**
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* @param string $var The key to look for (the keyword)
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* @return string The value $name points to (its translation)
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*/
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public function __get($var)
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{
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if ($this -> translation_data -> is_set($var))
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{
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return $this -> translation_data -> __get($var);
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}
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throw new ExceptionDisplay('Variable <em>' . Url::html_output($var)
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. '</em> not set in Language file.');
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}
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}
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?>
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