269 lines
7.0 KiB
PHP
269 lines
7.0 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Jakob Sack
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* @copyright 2010 Frank Karlitschek karlitschek@kde.org
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library 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 AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* This class is for i18n and l10n
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*/
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class OC_L10N{
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/**
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* cache
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*/
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protected static $cache = array();
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/**
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* The best language
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*/
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protected static $language = '';
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/**
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* Translations
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*/
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private $translations = array();
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/**
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* Localization
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*/
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private $localizations = array(
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'date' => 'd.m.Y',
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'datetime' => 'd.m.Y H:i:s',
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'time' => 'H:i:s' );
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/**
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* @brief The constructor
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* @param $app the app requesting l10n
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* @param $lang default: null Language
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* @returns OC_L10N-Object
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*
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* If language is not set, the constructor tries to find the right
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* language.
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*/
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public function __construct( $app, $lang = null ){
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global $SERVERROOT;
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// Find the right language
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if( is_null( $lang )){
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$lang = self::findLanguage( $app );
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}
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// Use cache if possible
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if(array_key_exists($app.'::'.$lang, self::$cache )){
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$this->translations = self::$cache[$app.'::'.$lang]['t'];
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$this->localizations = self::$cache[$app.'::'.$lang]['l'];
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}
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else{
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$i18ndir = self::findI18nDir( $app );
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// Localization is in /l10n, Texts are in $i18ndir
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// (Just no need to define date/time format etc. twice)
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if( file_exists( $i18ndir.$lang.'.php' )){
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// Include the file, save the data from $CONFIG
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include( $i18ndir.$lang.'.php' );
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if( isset( $TRANSLATIONS ) && is_array( $TRANSLATIONS )){
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$this->translations = $TRANSLATIONS;
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}
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}
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if( file_exists( $SERVERROOT.'/core/l10n/l10n-'.$lang.'.php' )){
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// Include the file, save the data from $CONFIG
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include( $SERVERROOT.'/core/l10n/l10n-'.$lang.'.php' );
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if( isset( $LOCALIZATIONS ) && is_array( $LOCALIZATIONS )){
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$this->localizations = array_merge( $this->localizations, $LOCALIZATIONS );
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}
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}
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self::$cache[$app.'::'.$lang]['t'] = $this->translations;
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self::$cache[$app.'::'.$lang]['l'] = $this->localizations;
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}
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}
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/**
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* @brief Translating
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* @param $text The text we need a translation for
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* @returns Translation or the same text
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*
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* Returns the translation. If no translation is found, $text will be
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* returned.
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*/
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public function t($text){
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if(array_key_exists($text, $this->translations)){
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return $this->translations[$text];
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}
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return $text;
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}
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/**
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* @brief getTranslations
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* @returns Fetch all translations
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*
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* Returns an associative array with all translations
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*/
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public function getTranslations(){
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return $this->translations;
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}
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/**
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* @brief Localization
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* @param $type Type of localization
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* @param $params parameters for this localization
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* @returns String or false
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*
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* Returns the localized data.
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*
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* Implemented types:
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* - date
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* - Creates a date
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* - l10n-field: date
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* - params: timestamp (int/string)
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* - datetime
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* - Creates date and time
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* - l10n-field: datetime
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* - params: timestamp (int/string)
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* - time
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* - Creates a time
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* - l10n-field: time
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* - params: timestamp (int/string)
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*/
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public function l($type, $data){
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switch($type){
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// If you add something don't forget to add it to $localizations
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// at the top of the page
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case 'date':
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if( is_string( $data )) $data = strtotime( $data );
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return date( $this->localizations['date'], $data );
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break;
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case 'datetime':
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if( is_string( $data )) $data = strtotime( $data );
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return date( $this->localizations['datetime'], $data );
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break;
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case 'time':
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if( is_string( $data )) $data = strtotime( $data );
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return date( $this->localizations['time'], $data );
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break;
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default:
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return false;
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}
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}
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/**
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* @brief Choose a language
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* @param $texts Associative Array with possible strings
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* @returns String
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*
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* $text is an array 'de' => 'hallo welt', 'en' => 'hello world', ...
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*
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* This function is useful to avoid loading thousands of files if only one
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* simple string is needed, for example in appinfo.php
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*/
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public static function selectLanguage( $text ){
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$lang = self::findLanguage( array_keys( $text ));
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return $text[$lang];
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}
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/**
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* @brief find the best language
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* @param $app Array or string, details below
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* @returns language
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*
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* If $app is an array, ownCloud assumes that these are the available
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* languages. Otherwise ownCloud tries to find the files in the l10n
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* folder.
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*
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* If nothing works it returns 'en'
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*/
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public static function findLanguage( $app = null ){
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if( !is_array( $app) && self::$language != '' ){
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return self::$language;
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}
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$available = array();
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if( is_array( $app )){
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$available = $app;
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}
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else{
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$available=self::findAvailableLanguages( $app );
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}
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if( OC_USER::getUser() && OC_PREFERENCES::getValue( OC_USER::getUser(), 'core', 'lang' )){
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$lang = OC_PREFERENCES::getValue( OC_USER::getUser(), 'core', 'lang' );
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self::$language = $lang;
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if( array_search( $lang, $available ) !== false ){
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return $lang;
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}
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}
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if( isset( $_SERVER['HTTP_ACCEPT_LANGUAGE'] )){
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$accepted_languages = preg_split( '/,\s*/', $_SERVER['HTTP_ACCEPT_LANGUAGE'] );
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foreach( $accepted_languages as $i ){
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$temp = explode( ';', $i );
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if( array_search( $temp[0], $available ) !== false ){
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return $temp[0];
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}
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}
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}
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// Last try: English
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return 'en';
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}
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/**
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* @brief find the l10n directory
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* @param $app App that needs to be translated
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* @returns directory
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*/
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protected static function findI18nDir( $app ){
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global $SERVERROOT;
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// find the i18n dir
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$i18ndir = $SERVERROOT.'/core/l10n/';
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if( $app != '' ){
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// Check if the app is in the app folder
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if( file_exists( $SERVERROOT.'/apps/'.$app.'/l10n/' )){
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$i18ndir = $SERVERROOT.'/apps/'.$app.'/l10n/';
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}
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else{
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$i18ndir = $SERVERROOT.'/'.$app.'/l10n/';
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}
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}
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return $i18ndir;
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}
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/**
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* @brief find all available languages for an app
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* @param $app App that needs to be translated
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* @returns array an array of available languages
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*/
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public static function findAvailableLanguages( $app=null ){
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$available=array('en');//english is always available
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$dir = self::findI18nDir( $app );
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if( file_exists($dir)){
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$dh = opendir($dir);
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while(( $file = readdir( $dh )) !== false ){
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if( substr( $file, -4, 4 ) == '.php' and strlen($file)==6 ){
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$i = substr( $file, 0, -4 );
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if( $i != '' ){
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$available[] = $i;
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}
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}
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}
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closedir($dh);
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}
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return $available;
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}
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} |