path: root/src/classes/Translations.php

<?php

/**
 * PHPPgAdmin 6.1.0
 */

namespace PHPPgAdmin;

/**
 * Class for translations.
 */
class Translations
{
    /**
     * @var array
     */
    public $lang;

    // List of language files, and encoded language name.

    /**
     * @var array
     */
    public $appLangFiles = [
        'afrikaans' => 'Afrikaans',
        'arabic' => '&#1593;&#1585;&#1576;&#1610;',
        'catalan' => 'Catal&#224;',
        'chinese-tr' => '&#32321;&#39636;&#20013;&#25991;',
        'chinese-sim' => '&#31616;&#20307;&#20013;&#25991;',
        'chinese-utf8-zh_TW' => '&#27491;&#39636;&#20013;&#25991;&#65288;UTF-8&#65289;',
        'chinese-utf8-zh_CN' => '&#31616;&#20307;&#20013;&#25991;&#65288;UTF-8&#65289;',
        'czech' => '&#268;esky',
        'danish' => 'Danish',
        'dutch' => 'Nederlands',
        'english' => 'English',
        'french' => 'Français',
        'galician' => 'Galego',
        'german' => 'Deutsch',
        'greek' => '&#917;&#955;&#955;&#951;&#957;&#953;&#954;&#940;',
        'hebrew' => 'Hebrew',
        'hungarian' => 'Magyar',
        'italian' => 'Italiano',
        'japanese' => '&#26085;&#26412;&#35486;',
        'lithuanian' => 'Lietuvi&#371;',
        'mongol' => 'Mongolian',
        'polish' => 'Polski',
        'portuguese-br' => 'Portugu&ecirc;s-Brasileiro',
        'portuguese-pt' => 'Portugu&ecirc;s',
        'romanian' => 'Rom&acirc;n&#259;',
        'russian-utf8' => '&#1056;&#1091;&#1089;&#1089;&#1082;&#1080;&#1081; (UTF-8)',
        'russian' => '&#1056;&#1091;&#1089;&#1089;&#1082;&#1080;&#1081;',
        'slovak' => 'Slovensky',
        'spanish' => 'Espa&ntilde;ol',
        'swedish' => 'Svenska',
        'turkish' => 'T&uuml;rk&ccedil;e',
        'ukrainian' => '&#1059;&#1082;&#1088;&#1072;&#9558;&#1085;&#1089;&#1100;&#1082;&#1072;',
    ];

    /**
     * @var array
     */
    public $appClasses = [
        'afrikaans' => 'Afrikaans',
        'arabic' => 'Arabic',
        'catalan' => 'Catalan',
        'chinese-tr' => 'ChineseTr',
        'chinese-sim' => 'ChineseSim',
        'chinese-utf8-zh_TW' => 'ChineseUtf8ZhTw',
        'chinese-utf8-zh_CN' => 'ChineseUtf8ZhCn',
        'czech' => 'Czech',
        'danish' => 'Danish',
        'dutch' => 'Dutch',
        'english' => 'English',
        'french' => 'French',
        'galician' => 'Galician',
        'german' => 'German',
        'greek' => 'Greek',
        'hebrew' => 'Hebrew',
        'hungarian' => 'Hungarian',
        'italian' => 'Italian',
        'japanese' => 'Japanese',
        'lithuanian' => 'Lithuanian',
        'mongol' => 'Mongol',
        'polish' => 'Polish',
        'portuguese-br' => 'PortugueseBr',
        'portuguese-pt' => 'PortuguesePt',
        'romanian' => 'Romanian',
        'russian-utf8' => 'RussianUtf8',
        'russian' => 'Russian',
        'slovak' => 'Slovak',
        'spanish' => 'Spanish',
        'swedish' => 'Swedish',
        'turkish' => 'Turkish',
        'ukrainian' => 'Ukrainian',
    ];

    /**
     * ISO639 language code to language file mapping.
     * See http://www.w3.org/WAI/ER/IG/ert/iso639.htm for language codes
     * If it's available 'language-country', but not general
     * 'language' translation (eg. 'portuguese-br', but not 'portuguese')
     * specify both 'la' => 'language-country' and 'la-co' => 'language-country'.
     *
     *  @var array */
    public $availableLanguages = [
        'af' => 'afrikaans',
        'ar' => 'arabic',
        'ca' => 'catalan',
        'zh' => 'chinese-tr',
        'zh-cn' => 'chinese-sim',
        'utf8-zh-cn' => 'chinese-utf8-zh_TW',
        'utf8-zh-tw' => 'chinese-utf8-zh_CN',
        'cs' => 'czech',
        'da' => 'danish',
        'nl' => 'dutch',
        'en' => 'english',
        'fr' => 'french',
        'gl' => 'galician',
        'de' => 'german',
        'el' => 'greek',
        'he' => 'hebrew',
        'hu' => 'hungarian',
        'it' => 'italian',
        'ja' => 'japanese',
        'lt' => 'lithuanian',
        'mn' => 'mongol',
        'pl' => 'polish',
        'pt-br' => 'portuguese-br',
        'pt' => 'portuguese-pt',
        'ro' => 'romanian',
        'ru' => 'russian',
        'sk' => 'slovak',
        'es' => 'spanish',
        'sv' => 'swedish',
        'tr' => 'turkish',
        'uk' => 'ukrainian',
    ];

    /**
     * @var array
     */
    public $languages_iso_code = [
        'afrikaans' => 'af',
        'arabic' => 'ar',
        'catalan' => 'ca',
        'chinese-tr' => 'zh-CN',
        'chinese-sim' => 'zh-CN',
        'chinese-utf8-zh_TW' => 'zh-TW',
        'chinese-utf8-zh_CN' => 'zh-CN',
        'czech' => 'cs',
        'danish' => 'da',
        'dutch' => 'nl',
        'english' => 'en',
        'french' => 'fr',
        'galician' => 'gl',
        'german' => 'de',
        'greek' => 'el',
        'hebrew' => 'he',
        'hungarian' => 'hu',
        'italian' => 'it',
        'japanese' => 'ja',
        'lithuanian' => 'lt',
        'mongol' => 'mn',
        'polish' => 'pl',
        'portuguese-br' => 'pt-BR',
        'portuguese-pt' => 'pt',
        'romanian' => 'ro',
        'russian' => 'ru',

        'slovak' => 'sk',
        'spanish' => 'es',
        'swedish' => 'sv',
        'turkish' => 'tr',
        'ukrainian' => 'uk',
    ];

    private $_language;

    public function __construct($container)
    {
        $appLangFiles = $this->appLangFiles;
        $appClasses = $this->appClasses;
        $_language = $this->_language;
        $conf = $container->conf;

        $languages_iso_code = $this->languages_iso_code;

        if (!isset($conf['default_lang'])) {
            $conf['default_lang'] = 'english';
        }

        // 1. Check for the language from a request var
        if (isset($_REQUEST['language'], $appLangFiles[$_REQUEST['language']])) {
            /* save the selected language in cookie for a year */
            \setcookie('webdbLanguage', $_REQUEST['language'], \time() + 31536000);
            $_language = $_REQUEST['language'];
        } elseif (!isset($_language) && isset($_SESSION['webdbLanguage'], $appLangFiles[$_SESSION['webdbLanguage']])) {
            // 2. Check for language in $_SESSION superglobal
            $_language = $_SESSION['webdbLanguage'];
        } elseif (!isset($_language) && isset($_COOKIE['webdbLanguage'], $appLangFiles[$_COOKIE['webdbLanguage']])) {
            // 3. Check for language in $_COOKIE superglobal
            $_language = $_COOKIE['webdbLanguage'];
        } elseif (!isset($_language) && 'auto' === $conf['default_lang'] && isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
            // 4. Check for acceptable languages in$_SERVER['HTTP_ACCEPT_LANGUAGE']
            // extract acceptable language tags
            // (http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4)
            $_language = $this->_pregMatchAcceptLanguage();
        } elseif (!isset($_language) && 'auto' !== $conf['default_lang'] && isset($appLangFiles[$conf['default_lang']])) {
            // 5. Otherwise resort to the default set in the config file
            $_language = $conf['default_lang'];
        } else {
            // 6. Otherwise, default to english.
            $_language = 'english';
        }

        $_type = '\PHPPgAdmin\Translations\\' . $appClasses[$_language];

        $langClass = new $_type();

        $_SESSION['webdbLanguage'] = $_language;

        if (\array_key_exists($_language, $languages_iso_code)) {
            $_isolang = $languages_iso_code[$_language];
        } else {
            $_isolang = 'en';
        }
        $_SESSION['isolang'] = $_isolang;

        $container->offsetSet('appLangFiles', $appLangFiles);
        $container->offsetSet('language', $_language);
        $container->offsetSet('isolang', $_isolang);

        $this->lang = $langClass->getLang();
        $this->lang['isolang'] = $_isolang;
    }

    /**
     * Check for acceptable languages in$_SERVER['HTTP_ACCEPT_LANGUAGE']
     * extract acceptable language tags.
     *
     * @see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4 Accept Language
     *
     * @return null|string candidate language or null if there's nonne
     */
    private function _pregMatchAcceptLanguage()
    {
        $_language = null;
        $_acceptLang = [];
        \preg_match_all(
            '/\s*([a-z]{1,8}(?:-[a-z]{1,8})*)(?:;q=([01](?:.[0-9]{0,3})?))?\s*(?:,|$)/',
            \mb_strtolower($_SERVER['HTTP_ACCEPT_LANGUAGE']),
            $_m,
            \PREG_SET_ORDER
        );

        foreach ($_m as $_l) {
            // $_l[1] = language tag, [2] = quality
            if (!isset($_l[2])) {
                $_l[2] = 1;
            }
            // Default quality to 1
            if (0 < $_l[2] && 1 >= $_l[2] && isset($this->availableLanguages[$_l[1]])) {
                // Build up array of (quality => language_file)
                $_acceptLang[$_l[2]] = $this->availableLanguages[$_l[1]];
            }
        }
        unset($_m, $_l);

        if (!empty($_acceptLang)) {
            // Sort acceptable languages by quality
            \krsort($_acceptLang, \SORT_NUMERIC);
            $_language = \reset($_acceptLang);
            unset($_acceptLang);
        }

        return $_language;
    }
}