<?php
/* $Id: select_lang.lib.php,v 1.84 2002/08/22 13:30:08 rabus Exp $ */


/**
 * phpMyAdmin Language Loading File
 */



if (!defined('PMA_SELECT_LANG_LIB_INCLUDED')) {
    define('PMA_SELECT_LANG_LIB_INCLUDED', 1);

    /**
     * Define the path to the translations directory and get some variables
     * from system arrays if 'register_globals' is set to 'off'
     */
    $lang_path = 'lang/';


    /**
     * All the supported languages have to be listed in the array below.
     * 1. The key must be the "official" ISO 639 language code and, if required,
     *    the dialect code. It can also contain some informations about the
     *    charset (see the Russian case).
     * 2. The first of the values associated to the key is used in a regular
     *    expression to find some keywords corresponding to the language inside two
     *    environment variables.
     *    These values contains:
     *    - the "official" ISO language code and, if required, the dialect code
     *      also ('bu' for Bulgarian, 'fr([-_][[:alpha:]]{2})?' for all French
     *      dialects, 'zh[-_]tw' for Chinese traditional...);
     *    - the '|' character (it means 'OR');
     *    - the full language name.
     * 3. The second values associated to the key is the name of the file to load
     *    without the 'inc.php' extension.
     * 4. The last values associated to the key is the language code as defined by
     *    the RFC1766.
     *
     * Beware that the sorting order (first values associated to keys by
     * alphabetical reverse order in the array) is important: 'zh-tw' (chinese
     * traditional) must be detected before 'zh' (chinese simplified) for
     * example.
     *
     * When there are more than one charset for a language, we put the -utf-8
     * first.
     */
    $available_languages = array(
        'af-utf-8'     => array('af|afrikaans', 'afrikaans-utf-8', 'af'),
        'af-iso-8859-1'=> array('af|afrikaans', 'afrikaans-iso-8859-1', 'af'),
        'ar-utf-8'     => array('ar([-_][[:alpha:]]{2})?|arabic', 'arabic-utf-8', 'ar'),
        'ar-win1256'   => array('ar([-_][[:alpha:]]{2})?|arabic', 'arabic-windows-1256', 'ar'),
        'bg-utf-8'     => array('bg|bulgarian', 'bulgarian-utf-8', 'bg'),
        'bg-win1251'   => array('bg|bulgarian', 'bulgarian-windows-1251', 'bg'),
        'bg-koi8-r'    => array('bg|bulgarian', 'bulgarian-koi8-r', 'bg'),
        'ca-utf-8'     => array('ca|catalan', 'catalan-utf-8', 'ca'),
        'ca-iso-8859-1'=> array('ca|catalan', 'catalan-iso-8859-1', 'ca'),
        'cs-utf-8'     => array('cs|czech', 'czech-utf-8', 'cs'),
        'cs-iso-8859-2'=> array('cs|czech', 'czech-iso-8859-2', 'cs'),
        'cs-win1250'   => array('cs|czech', 'czech-windows-1250', 'cs'),
        'da-utf-8'     => array('da|danish', 'danish-utf-8', 'da'),
        'da-iso-8859-1'=> array('da|danish', 'danish-iso-8859-1', 'da'),
        'de-utf-8'     => array('de([-_][[:alpha:]]{2})?|german', 'german-utf-8', 'de'),
        'de-iso-8859-1'=> array('de([-_][[:alpha:]]{2})?|german', 'german-iso-8859-1', 'de'),
        'el-utf-8'     => array('el|greek',  'greek-utf-8', 'el'),
        'el-iso-8859-7'=> array('el|greek',  'greek-iso-8859-7', 'el'),
        'en-utf-8'     => array('en([-_][[:alpha:]]{2})?|english',  'english-utf-8', 'en'),
        'en-iso-8859-1'=> array('en([-_][[:alpha:]]{2})?|english',  'english-iso-8859-1', 'en'),
        'es-utf-8'     => array('es([-_][[:alpha:]]{2})?|spanish', 'spanish-utf-8', 'es'),
        'es-iso-8859-1'=> array('es([-_][[:alpha:]]{2})?|spanish', 'spanish-iso-8859-1', 'es'),
        'et-utf-8'     => array('et|estonian', 'estonian-utf-8', 'et'),
        'et-iso-8859-1'=> array('et|estonian', 'estonian-iso-8859-1', 'et'),
        'fi-utf-8'     => array('fi|finnish', 'finnish-utf-8', 'fi'),
        'fi-iso-8859-1'=> array('fi|finnish', 'finnish-iso-8859-1', 'fi'),
        'fr-utf-8'     => array('fr([-_][[:alpha:]]{2})?|french', 'french-utf-8', 'fr'),
        'fr-iso-8859-1'=> array('fr([-_][[:alpha:]]{2})?|french', 'french-iso-8859-1', 'fr'),
        'gl-utf-8'     => array('gl|galician', 'galician-utf-8', 'gl'),
        'gl-iso-8859-1'=> array('gl|galician', 'galician-iso-8859-1', 'gl'),
        'he-iso-8859-8-i'=> array('he|hebrew', 'hebrew-iso-8859-8-i', 'he'),
        'hi-utf-8'     => array('hi|hindi', 'hindi-utf-8', 'hi'),
        'hr-utf-8'     => array('hr|croatian', 'croatian-utf-8', 'hr'),
        'hr-win1250'   => array('hr|croatian', 'croatian-windows-1250', 'hr'),
        'hr-iso-8859-2'=> array('hr|croatian', 'croatian-iso-8859-2', 'hr'),
        'hu-utf-8'     => array('hu|hungarian', 'hungarian-utf-8', 'hu'),
        'hu-iso-8859-2'=> array('hu|hungarian', 'hungarian-iso-8859-2', 'hu'),
        'id-utf-8'     => array('id|indonesian', 'indonesian-utf-8', 'id'),
        'id-iso-8859-1'=> array('id|indonesian', 'indonesian-iso-8859-1', 'id'),
        'it-utf-8'     => array('it|italian', 'italian-utf-8', 'it'),
        'it-iso-8859-1'=> array('it|italian', 'italian-iso-8859-1', 'it'),
        'ja-utf-8'     => array('ja|japanese', 'japanese-utf-8', 'ja'),
        'ja-euc'       => array('ja|japanese', 'japanese-euc', 'ja'),
        'ja-sjis'      => array('ja|japanese', 'japanese-sjis', 'ja'),
        'ko-ks_c_5601-1987'=> array('ko|korean', 'korean-ks_c_5601-1987', 'ko'),
        'ka-utf-8'     => array('ka|georgian', 'georgian-utf-8', 'ka'),
        'lt-utf-8'     => array('lt|lithuanian', 'lithuanian-utf-8', 'lt'),
        'lt-win1257'   => array('lt|lithuanian', 'lithuanian-windows-1257', 'lt'),
        'lv-utf-8'     => array('lv|latvian', 'latvian-utf-8', 'lv'),
        'lv-win1257'   => array('lv|latvian', 'latvian-windows-1257', 'lv'),
        'ms-utf-8'     => array('ms|malay', 'malay-utf-8', 'ms'),
        'ms-iso-8859-1'=> array('ms|malay', 'malay-iso-8859-1', 'ms'),
        'nl-utf-8'     => array('nl([-_][[:alpha:]]{2})?|dutch', 'dutch-utf-8', 'nl'),
        'nl-iso-8859-1'=> array('nl([-_][[:alpha:]]{2})?|dutch', 'dutch-iso-8859-1', 'nl'),
        'no-utf-8'     => array('no|norwegian', 'norwegian-utf-8', 'no'),
        'no-iso-8859-1'=> array('no|norwegian', 'norwegian-iso-8859-1', 'no'),
        'pl-utf-8'     => array('pl|polish', 'polish-utf-8', 'pl'),
        'pl-iso-8859-2'=> array('pl|polish', 'polish-iso-8859-2', 'pl'),
        'pt-br-utf-8'  => array('pt[-_]br|brazilian portuguese', 'brazilian_portuguese-utf-8', 'pt-BR'),
        'pt-br-iso-8859-1' => array('pt[-_]br|brazilian portuguese', 'brazilian_portuguese-iso-8859-1', 'pt-BR'),
        'pt-utf-8'     => array('pt([-_][[:alpha:]]{2})?|portuguese', 'portuguese-utf-8', 'pt'),
        'pt-iso-8859-1'=> array('pt([-_][[:alpha:]]{2})?|portuguese', 'portuguese-iso-8859-1', 'pt'),
        'ro-utf-8'     => array('ro|romanian', 'romanian-utf-8', 'ro'),
        'ro-iso-8859-1'=> array('ro|romanian', 'romanian-iso-8859-1', 'ro'),
        'ru-utf-8'     => array('ru|russian', 'russian-utf-8', 'ru'),
        'ru-koi8-r'    => array('ru|russian', 'russian-koi8-r', 'ru'),
        'ru-win1251'   => array('ru|russian', 'russian-windows-1251', 'ru'),
        'sk-utf-8'     => array('sk|slovak', 'slovak-utf-8', 'sk'),
        'sk-iso-8859-2'=> array('sk|slovak', 'slovak-iso-8859-2', 'sk'),
        'sk-win1250'   => array('sk|slovak', 'slovak-windows-1250', 'sk'),
        'sl-utf-8'     => array('sl|slovenian', 'slovenian-utf-8', 'sl'),
        'sl-iso-8859-2'=> array('sl|slovenian', 'slovenian-iso-8859-2', 'sl'),
        'sl-win1250'   => array('sl|slovenian', 'slovenian-windows-1250', 'sl'),
        'sq-utf-8'     => array('sq|albanian', 'albanian-utf-8', 'sq'),
        'sq-iso-8859-1'=> array('sq|albanian', 'albanian-iso-8859-1', 'sq'),
        'sr-utf-8'     => array('sr|serbian', 'serbian-utf-8', 'sr'),
        'sr-win1250'   => array('sr|serbian', 'serbian-windows-1250', 'sr'),
        'sv-utf-8'     => array('sv|swedish', 'swedish-utf-8', 'sv'),
        'sv-iso-8859-1'=> array('sv|swedish', 'swedish-iso-8859-1', 'sv'),
        'th-utf-8'     => array('th|thai', 'thai-utf-8', 'th'),
        'th-tis-620'   => array('th|thai', 'thai-tis-620', 'th'),
        'tr-utf-8'     => array('tr|turkish', 'turkish-utf-8', 'tr'),
        'tr-iso-8859-9'=> array('tr|turkish', 'turkish-iso-8859-9', 'tr'),
        'uk-utf-8'     => array('uk|ukrainian', 'ukrainian-utf-8', 'uk'),
        'uk-win1251'   => array('uk|ukrainian', 'ukrainian-windows-1251', 'uk'),
        'zh-tw-utf-8'  => array('zh[-_]tw|chinese traditional', 'chinese_big5-utf-8', 'zh-TW'),
        'zh-tw'        => array('zh[-_]tw|chinese traditional', 'chinese_big5', 'zh-TW'),
        'zh-utf-8'     => array('zh|chinese simplified', 'chinese_gb-utf-8', 'zh'),
        'zh'           => array('zh|chinese simplified', 'chinese_gb', 'zh')
    );


    if (!defined('PMA_IS_LANG_DETECT_FUNCTION')) {
        define('PMA_IS_LANG_DETECT_FUNCTION', 1);

        /**
         * Analyzes some PHP environment variables to find the most probable language
         * that should be used
         *
         * @param   string   string to analyze
         * @param   integer  type of the PHP environment variable which value is $str
         *
         * @global  array    the list of available translations
         * @global  string   the retained translation keyword
         *
         * @access  private
         */
        function PMA_langDetect($str = '', $envType = '')
        {
            global $available_languages;
            global $lang;

            reset($available_languages);
            while (list($key, $value) = each($available_languages)) {
                // $envType =  1 for the 'HTTP_ACCEPT_LANGUAGE' environment variable,
                //             2 for the 'HTTP_USER_AGENT' one
                if (($envType == 1 && eregi('^(' . $value[0] . ')(;q=[0-9]\\.[0-9])?$', $str))
                    || ($envType == 2 && eregi('(\(|\[|;[[:space:]])(' . $value[0] . ')(;|\]|\))', $str))) {
                    $lang     = $key;
                    break;
                }
            }
        } // end of the 'PMA_langDetect()' function

    } // end if


    /**
     * Get some global variables if 'register_globals' is set to 'off'
     * loic1 - 2001/25/11: use the new globals arrays defined with php 4.1+
     */
    if (!empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
        $HTTP_ACCEPT_LANGUAGE = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
    }
    else if (!empty($HTTP_SERVER_VARS['HTTP_ACCEPT_LANGUAGE'])) {
        $HTTP_ACCEPT_LANGUAGE = $HTTP_SERVER_VARS['HTTP_ACCEPT_LANGUAGE'];
    }

    if (!empty($_SERVER['HTTP_USER_AGENT'])) {
        $HTTP_USER_AGENT = $_SERVER['HTTP_USER_AGENT'];
    }
    else if (!empty($HTTP_SERVER_VARS['HTTP_USER_AGENT'])) {
        $HTTP_USER_AGENT = $HTTP_SERVER_VARS['HTTP_USER_AGENT'];
    }

    if (!isset($lang)) {
        if (isset($_GET) && !empty($_GET['lang'])) {
            $lang = $_GET['lang'];
        }
        else if (isset($HTTP_GET_VARS) && !empty($HTTP_GET_VARS['lang'])) {
            $lang = $HTTP_GET_VARS['lang'];
        }
        else if (isset($_POST) && !empty($_POST['lang'])) {
            $lang = $_POST['lang'];
        }
        else if (isset($HTTP_POST_VARS) && !empty($HTTP_POST_VARS['lang'])) {
            $lang = $HTTP_POST_VARS['lang'];
        }
        else if (isset($_COOKIE) && !empty($_COOKIE['lang'])) {
            $lang = $_COOKIE['lang'];
        }
        else if (isset($HTTP_COOKIE_VARS) && !empty($HTTP_COOKIE_VARS['lang'])) {
            $lang = $HTTP_COOKIE_VARS['lang'];
        }
    }


    /**
     * Do the work!
     */

    // compatibility with config.inc.php <= v1.80
    if (!isset($cfg['Lang']) && isset($cfgLang)) {
        $cfg['Lang']        = $cfgLang;
        unset($cfgLang);
    }
    if (!isset($cfg['DefaultLang']) && isset($cfgDefaultLang)) {
        $cfg['DefaultLang'] = $cfgDefaultLang;
        unset($cfgLang);
    }

    // Disable UTF-8 if $cfg['AllowAnywhereRecoding'] has been set to FALSE.
    if (!isset($cfg['AllowAnywhereRecoding']) || !$cfg['AllowAnywhereRecoding']) {
        $available_language_files               = $available_languages;
        $available_languages                    = array();
        while (list($tmp_lang, $tmp_lang_data) = each($available_language_files)) {
            if (substr($tmp_lang, -5) != 'utf-8') {
                $available_languages[$tmp_lang] = $tmp_lang_data;
            }
        } // end while
        unset($tmp_lang);
        unset($tmp_lang_data);
        unset($available_language_files);
    } // end if

    // Lang forced
    if (!empty($cfg['Lang'])) {
        $lang = $cfg['Lang'];
    }

    // If '$lang' is defined, ensure this is a valid translation
    if (!empty($lang) && empty($available_languages[$lang])) {
        $lang = '';
    }

    // Language is not defined yet :
    // 1. try to findout user's language by checking its HTTP_ACCEPT_LANGUAGE
    //    variable
    if (empty($lang) && !empty($HTTP_ACCEPT_LANGUAGE)) {
        $accepted    = explode(',', $HTTP_ACCEPT_LANGUAGE);
        $acceptedCnt = count($accepted);
        reset($accepted);
        for ($i = 0; $i < $acceptedCnt && empty($lang); $i++) {
            PMA_langDetect($accepted[$i], 1);
        }
    }
    // 2. try to findout user's language by checking its HTTP_USER_AGENT variable
    if (empty($lang) && !empty($HTTP_USER_AGENT)) {
        PMA_langDetect($HTTP_USER_AGENT, 2);
    }

    // 3. Didn't catch any valid lang : we use the default settings
    if (empty($lang)) {
        $lang = $cfg['DefaultLang'];
    }

    // 4. Checks whether charset recoding should be allowed or not
    $allow_recoding = FALSE; // Default fallback value
    if (!isset($convcharset) || empty($convcharset)) {
        $convcharset = $cfg['DefaultCharset'];
    }

    // 5. Defines the associated filename and load the translation
    $lang_file = $lang_path . $available_languages[$lang][1] . '.inc.php';
    include('./' . $lang_file);

} // $__PMA_SELECT_LANG_LIB__
?>
