191 lines
4.8 KiB
PHP
191 lines
4.8 KiB
PHP
<?php
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namespace PHPCensor\Helper;
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use b8\Config;
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use PHPCensor\Model\User;
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/**
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* Languages Helper Class - Handles loading strings files and the strings within them.
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*/
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class Lang
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{
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const DEFAULT_LANGUAGE = 'en';
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/**
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* @var string
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*/
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protected static $language = null;
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/**
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* @var array
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*/
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protected static $languages = [];
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/**
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* @var array
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*/
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protected static $strings = [];
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/**
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* @var array
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*/
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protected static $default_strings = [];
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/**
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* Get a specific string from the language file.
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*
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* @param $string
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* @return mixed|string
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*/
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public static function get($string)
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{
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$vars = func_get_args();
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if (array_key_exists($string, self::$strings)) {
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$vars[0] = self::$strings[$string];
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return call_user_func_array('sprintf', $vars);
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} elseif (self::DEFAULT_LANGUAGE !== self::$language && array_key_exists($string, self::$default_strings)) {
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$vars[0] = self::$default_strings[$string];
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return call_user_func_array('sprintf', $vars);
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}
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return $string;
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}
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/**
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* Output a specific string from the language file.
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*/
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public static function out()
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{
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print call_user_func_array(['PHPCensor\Helper\Lang', 'get'], func_get_args());
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}
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/**
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* Get the currently active language.
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*
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* @return string|null
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*/
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public static function getLanguage()
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{
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return self::$language;
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}
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/**
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* Try and load a language, and if successful, set it for use throughout the system.
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*
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* @param $language
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*
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* @return bool
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*/
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public static function setLanguage($language)
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{
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if (in_array($language, self::$languages)) {
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self::$language = $language;
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self::$strings = self::loadLanguage();
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return true;
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}
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return false;
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}
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/**
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* Return a list of available languages and their names.
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*
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* @return array
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*/
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public static function getLanguageOptions()
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{
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$languages = [];
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foreach (self::$languages as $language) {
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$strings = include(SRC_DIR . 'Languages' . DIRECTORY_SEPARATOR . 'lang.' . $language . '.php');
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$languages[$language] = !empty($strings['language_name'])
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? $strings['language_name'] . ' (' . $language . ')'
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: $language;
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}
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return $languages;
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}
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/**
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* Get the strings for the currently active language.
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*
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* @return string[]
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*/
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public static function getStrings()
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{
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return self::$strings;
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}
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/**
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* Initialise the Language helper, try load the language file for the user's browser or the configured default.
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*
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* @param Config $config
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* @param string $language_force
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*/
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public static function init(Config $config, $language_force = null)
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{
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self::$default_strings = self::loadLanguage(self::DEFAULT_LANGUAGE);
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self::loadAvailableLanguages();
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if ($language_force && self::setLanguage($language_force)) {
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return;
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}
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/** @var User $user */
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$user = !empty($_SESSION['php-censor-user']) ? $_SESSION['php-censor-user'] : null;
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if (!is_object($user) && gettype($user) == 'object') {
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$user = unserialize(serialize($_SESSION['php-censor-user']));
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}
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if ($user) {
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$language = $user->getLanguage();
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if ($user && self::setLanguage($language)) {
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return;
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}
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}
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// Try the installation default language:
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$language = $config->get('php-censor.language', self::DEFAULT_LANGUAGE);
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if (self::setLanguage($language)) {
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return;
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}
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}
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/**
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* Load a specific language file.
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*
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* @param string $language
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*
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* @return string[]|null
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*/
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protected static function loadLanguage($language = null)
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{
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$language = $language ? $language : self::$language;
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$langFile = SRC_DIR . 'Languages' . DIRECTORY_SEPARATOR . 'lang.' . $language . '.php';
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if (!file_exists($langFile)) {
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return null;
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}
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$strings = include($langFile);
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if (is_null($strings) || !is_array($strings) || !count($strings)) {
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return null;
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}
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return $strings;
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}
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/**
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* Load the names of all available languages.
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*/
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protected static function loadAvailableLanguages()
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{
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$matches = [];
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foreach (glob(SRC_DIR . 'Languages' . DIRECTORY_SEPARATOR . 'lang.*.php') as $file) {
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if (preg_match('/lang\.([a-z]{2}\-?[a-z]*)\.php/', $file, $matches)) {
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self::$languages[] = $matches[1];
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}
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}
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}
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}
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