mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-27 17:19:06 +01:00
1182 lines
36 KiB
PHP
1182 lines
36 KiB
PHP
<?php
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/**
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* EGroupware API - Translations
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*
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* @link http://www.egroupware.org
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* @author Joseph Engo <jengo@phpgroupware.org>
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* @author Dan Kuykendall <seek3r@phpgroupware.org>
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* Copyright (C) 2000, 2001 Joseph Engo
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* @license http://opensource.org/licenses/lgpl-license.php LGPL - GNU Lesser General Public License
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* @package api
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*/
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namespace EGroupware\Api;
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/**
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* EGroupware API - Translations
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*
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* All methods of this class can now be called static.
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*
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* Translations are cached tree-wide via Cache class.
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*
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* Translations are no longer stored in database, but load directly from *.lang files into cache.
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* Only exception as instance specific translations: mainscreen, loginscreen and custom (see $instance_specific_translations)
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*/
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class Translation
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{
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/**
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* Language of current user, will be set by init()
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*
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* @var string
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*/
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static $userlang = 'en';
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/**
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* Already loaded translations by applicaton
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*
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* @var array $app => $lang pairs
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*/
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static $loaded_apps = array();
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/**
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* Loaded phrases
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*
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* @var array $message_id => $translation pairs
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*/
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static $lang_arr = array();
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/**
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* Tables used by this class
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*/
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const LANG_TABLE = 'egw_lang';
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const LANGUAGES_TABLE = 'egw_languages';
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/**
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* Directory for language files
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*/
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const LANG_DIR = 'lang';
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/**
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* Prefix of language files
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*/
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const LANGFILE_PREFIX = 'egw_';
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/**
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* Prefix of language files
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*/
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const LANGFILE_EXTENSION = '.lang';
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/**
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* Reference to global db-class
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*
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* @var Db
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*/
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static $db;
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/**
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* System charset
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*
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* @var string
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*/
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static $system_charset;
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/**
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* Is the mbstring extension available
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*
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* @var boolean
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*/
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static $mbstring;
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/**
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* Internal encoding / charset of PHP / mbstring (if loaded)
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*
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* @var string
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*/
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static $default_charset;
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/**
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* Application which translations have to be cached instance- and NOT tree-specific
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*
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* @var array
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*/
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static $instance_specific_translations = array('loginscreen','mainscreen','custom');
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/**
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* returns the charset to use (!$lang) or the charset of the lang-files or $lang
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*
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* @param string|boolean $lang =False return charset of the active user-lang, or $lang if specified
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* @return string charset
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*/
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static function charset($lang=False)
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{
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static $charsets = array();
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if ($lang)
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{
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if (!isset($charsets[$lang]))
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{
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if (!($charsets[$lang] = self::$db->select(self::LANG_TABLE,'content',array(
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'lang' => $lang,
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'message_id'=> 'charset',
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'app_name' => 'common',
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),__LINE__,__FILE__)->fetchColumn()))
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{
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$charsets[$lang] = 'utf-8';
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}
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}
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return $charsets[$lang];
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}
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if (self::$system_charset) // do we have a system-charset ==> return it
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{
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$charset = self::$system_charset;
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}
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else
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{
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// if no translations are loaded (system-startup) use a default, else lang('charset')
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$charset = !self::$lang_arr ? 'utf-8' : strtolower(self::translate('charset'));
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}
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// in case no charset is set, default to utf-8
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if (empty($charset) || $charset == 'charset') $charset = 'utf-8';
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// we need to set our charset as mbstring.internal_encoding if mbstring.func_overlaod > 0
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// else we get problems for a charset is different from the default utf-8
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$ini_default_charset = version_compare(PHP_VERSION, '5.6', '<') ? 'mbstring.internal_encoding' : 'default_charset';
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if (ini_get($ini_default_charset) && self::$default_charset != $charset)
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{
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ini_set($ini_default_charset, self::$default_charset = $charset);
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}
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return $charset;
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}
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/**
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* Initialises global lang-array and loads the 'common' and app-spec. translations
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*
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* @param boolean $load_translations =true should we also load translations for common and currentapp
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*/
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static function init($load_translations=true)
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{
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if (!isset(self::$db))
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{
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self::$db = isset($GLOBALS['egw_setup']) && isset($GLOBALS['egw_setup']->db) ? $GLOBALS['egw_setup']->db : $GLOBALS['egw']->db;
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}
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if (!isset($GLOBALS['egw_setup']))
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{
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self::$system_charset = $GLOBALS['egw_info']['server']['system_charset'];
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}
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else
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{
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self::$system_charset =& $GLOBALS['egw_setup']->system_charset;
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}
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if ((self::$mbstring = check_load_extension('mbstring')))
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{
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if(!empty(self::$system_charset))
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{
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$ini_default_charset = version_compare(PHP_VERSION, '5.6', '<') ? 'mbstring.internal_encoding' : 'default_charset';
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ini_set($ini_default_charset, self::$system_charset);
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}
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}
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// try loading load_via from tree-wide cache and check if it contains more rules
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if (($load_via = Cache::getTree(__CLASS__, 'load_via')) &&
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$load_via >= self::$load_via && // > for array --> contains more elements
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// little sanity check: cached array contains all stock keys, otherwise ignore it
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!array_diff_key(self::$load_via, $load_via))
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{
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self::$load_via = $load_via;
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//error_log(__METHOD__."() load_via set from tree-wide cache to ".array2string(self::$load_via));
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}
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self::$lang_arr = self::$loaded_apps = array();
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if ($load_translations)
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{
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if ($GLOBALS['egw_info']['user']['preferences']['common']['lang'])
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{
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self::$userlang = $GLOBALS['egw_info']['user']['preferences']['common']['lang'];
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}
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$apps = array('common');
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// for eTemplate apps, load etemplate before app itself (allowing app to overwrite etemplate translations)
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if (class_exists('EGroupware\\Api\\Etemplate', false) || class_exists('etemplate', false)) $apps[] = 'etemplate';
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if ($GLOBALS['egw_info']['flags']['currentapp']) $apps[] = $GLOBALS['egw_info']['flags']['currentapp'];
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// load instance specific translations last, so they can overwrite everything
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$apps[] = 'custom';
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self::add_app($apps);
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if (!count(self::$lang_arr))
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{
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self::$userlang = 'en';
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self::add_app($apps);
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}
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}
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}
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/**
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* translates a phrase and evtl. substitute some variables
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*
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* @param string $key phrase to translate, may contain placeholders %N (N=1,2,...) for vars
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* @param array $vars =null vars to replace the placeholders, or null for none
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* @param string $not_found ='*' what to add to not found phrases, default '*'
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* @return string with translation
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*/
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static function translate($key, $vars=null, $not_found='' )
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{
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if (!self::$lang_arr)
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{
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self::init();
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}
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$ret = $key; // save key if we dont find a translation
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if ($not_found) $ret .= $not_found;
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if (isset(self::$lang_arr[$key]))
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{
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$ret = self::$lang_arr[$key];
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}
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else
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{
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$new_key = strtolower($key);
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if (isset(self::$lang_arr[$new_key]))
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{
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$ret = self::$lang_arr[$new_key];
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}
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}
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if (is_array($vars) && count($vars))
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{
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if (count($vars) > 1)
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{
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static $placeholders = array('%3','%2','%1','|%2|','|%3|','%4','%5','%6','%7','%8','%9','%10');
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// to cope with $vars[0] containing '%2' (eg. an urlencoded path like a referer),
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// we first replace '%2' in $ret with '|%2|' and then use that as 2. placeholder
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// we do that for %3 as well, ...
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$vars = array_merge(array('|%3|','|%2|'),$vars); // push '|%2|' (and such) as first replacement on $vars
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$ret = str_replace($placeholders,$vars,$ret);
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}
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else
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{
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$ret = str_replace('%1',$vars[0],$ret);
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}
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}
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return $ret;
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}
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/**
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* Translates a phrase according to the given user's language preference,
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* which may be different from the current user.
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*
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* @param int $account_id
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* @param string $message
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* @param array $vars =null vars to replace the placeholders, or null for none
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*/
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static function translate_as($account_id, $message, $vars=null)
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{
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if(!is_numeric($account_id))
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{
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return static::translate($message, $vars);
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}
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$preferences = new Preferences($account_id);
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$prefs = $preferences->read();
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if($prefs['common']['lang'] != $GLOBALS['egw_info']['user']['preferences']['common']['lang'])
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{
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$old_lang = self::$userlang;
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$GLOBALS['egw_info']['user']['preferences']['common']['lang'] = $prefs['common']['lang'];
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$apps = array_keys(self::$loaded_apps);
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self::init(true);
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self::add_app($apps);
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}
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$phrase = static::translate($message, $vars);
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if (!empty($old_lang))
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{
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$GLOBALS['egw_info']['user']['preferences']['common']['lang'] = $old_lang;
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self::init(true);
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self::add_app($apps);
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}
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return $phrase;
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}
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/**
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* Adds translations for (multiple) application(s)
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*
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* By default the translations are read from the tree-wide cache
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*
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* @param string|array $apps name(s) of application(s) to add (or 'common' for the general translations)
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* if multiple names given, they are requested in one request from cache and loaded in given order
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* @param string $lang =false 2 or 5 char lang-code or false for the users language
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*/
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static function add_app($apps, $lang=null)
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{
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//error_log(__METHOD__."(".array2string($apps).", $lang) count(self::\$lang_arr)=".count(self::$lang_arr));
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//$start = microtime(true);
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if (!$lang) $lang = self::$userlang;
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$tree_level = $instance_level = array();
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if (!is_array($apps)) $apps = (array)$apps;
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foreach($apps as $key => $app)
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{
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if (!isset(self::$loaded_apps[$app]) || self::$loaded_apps[$app] != $lang && $app != 'common')
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{
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if (in_array($app, self::$instance_specific_translations))
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{
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$instance_level[] = $app.':'.($app == 'custom' ? 'en' : $lang);
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}
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else
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{
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$tree_level[] = $app.':'.$lang;
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}
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}
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else
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{
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unset($apps[$key]);
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}
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}
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// load all translations from cache at once
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if ($tree_level) $tree_level = Cache::getTree(__CLASS__, $tree_level);
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if ($instance_level) $instance_level = Cache::getInstance(__CLASS__, $instance_level);
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// merging loaded translations together
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$updated_load_via = false;
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foreach((array)$apps as $app)
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{
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$l = $app == 'custom' ? 'en' : $lang;
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if (isset($tree_level[$app.':'.$l]))
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{
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$loaded =& $tree_level[$app.':'.$l];
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}
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elseif (isset($instance_level[$app.':'.$l]))
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{
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$loaded =& $instance_level[$app.':'.$l];
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}
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else
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{
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if (($instance_specific = in_array($app, self::$instance_specific_translations)))
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{
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$loaded =& self::load_app($app, $l);
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}
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else
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{
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$loaded =& self::load_app_files($app, $l, null, $updated_load_via);
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}
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//error_log(__METHOD__."('$app', '$lang') instance_specific=$instance_specific, load_app(_files)() returned ".(is_array($loaded)?'Array('.count($loaded).')':array2string($loaded)));
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if ($loaded)
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{
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Cache::setCache($instance_specific ? Cache::INSTANCE : Cache::TREE,
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__CLASS__, $app.':'.$l, $loaded);
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//error_log(__METHOD__."('$app', '$lang') caching now ".(is_array($loaded)?'Array('.count($loaded).')':array2string($loaded)));
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}
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}
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if ($loaded)
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{
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self::$lang_arr = array_merge(self::$lang_arr, $loaded);
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self::$loaded_apps[$app] = $l; // dont set something not existing to $loaded_apps, no need to load client-side
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}
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}
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// Re-merge custom over instance level, they have higher precidence
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if($tree_level && !$instance_level && self::$instance_specific_translations)
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{
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$custom = Cache::getInstance(__CLASS__, 'custom:en');
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if($custom)
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{
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self::$lang_arr = array_merge(self::$lang_arr, $custom);
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}
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}
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if ($updated_load_via)
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{
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self::update_load_via();
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}
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//error_log(__METHOD__.'('.array2string($apps).", '$lang') took ".(1000*(microtime(true)-$start))." ms, loaded_apps=".array2string(self::$loaded_apps).", loaded ".count($loaded)." phrases -> total=".count(self::$lang_arr));//.": ".function_backtrace());
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}
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/**
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* Loads translations for an application from the database or direct from the lang-file for setup
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*
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* Never use directly, use add_app(), which employes caching (it has to be public, to act as callback for the cache!).
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*
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* @param string $app name of the application to add (or 'common' for the general translations)
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* @param string $lang =false 2 or 5 char lang-code or false for the users language
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* @return array the loaded strings
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*/
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static function &load_app($app,$lang)
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{
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//$start = microtime(true);
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if (!isset(self::$db))
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{
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self::init(false);
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if (!isset(self::$db)) return;
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}
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$loaded = array();
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try {
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foreach (self::$db->select(self::LANG_TABLE, 'message_id,content', array(
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'lang' => $lang,
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'app_name' => $app,
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), __LINE__, __FILE__) as $row)
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{
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$loaded[strtolower($row['message_id'])] = $row['content'];
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}
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}
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catch (Db\Exception $e) {
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// ignore error
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}
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//error_log(__METHOD__."($app,$lang) took ".(1000*(microtime(true)-$start))." ms to load ".count($loaded)." phrases");
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return $loaded;
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}
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/**
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* How to load translations for a given app
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*
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* Translations for common, preferences or admin are in spread over all applications.
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* Api, old phpgwapi and etemplate have translations for some pseudo-apps.
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*
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* @var array app => app(s) or string 'all-apps'
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*/
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static $load_via = array(
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'common' => 'all-apps',
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'preferences' => 'all-apps',
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'admin' => 'all-apps',
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'jscalendar' => array('phpgwapi'),
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'sitemgr-link' => array('sitemgr'),
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'groupdav' => array('api'),
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'developer_tools' => array('etemplate'),
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'login' => array('api','registration'),
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);
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/**
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* Check if cached translations are up to date or invalidate cache if not
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*
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* Called via login.php for each interactive login.
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*/
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static function check_invalidate_cache()
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{
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$lang = $GLOBALS['egw_info']['user']['preferences']['common']['lang'];
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$apps = array_keys($GLOBALS['egw_info']['apps']);
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foreach($apps as $app)
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{
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$file = self::get_lang_file($app, $lang);
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// check if file has changed compared to what's cached
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if (file_exists($file))
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{
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$cached_time = Cache::getTree(__CLASS__, $file);
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$file_time = filemtime($file);
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if ($cached_time != $file_time)
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{
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//error_log(__METHOD__."() $file MODIFIED ($cached_time != $file_time)");
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self::invalidate_lang_file($app, $lang);
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}
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//else error_log(__METHOD__."() $file unchanged ($cached_time == $file_time)");
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}
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}
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}
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/**
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* Invalidate cache for lang-file of $app and $lang
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*
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* @param string $app
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* @param string $lang
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*/
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static function invalidate_lang_file($app, $lang)
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{
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//error_log(__METHOD__."('$app', '$lang') invalidate translations $app:$lang");
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Cache::unsetTree(__CLASS__, $app.':'.$lang);
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Cache::unsetTree(__CLASS__, self::get_lang_file($app, $lang));
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foreach(self::$load_via as $load => $via)
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{
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//error_log("load_via[load='$load'] = via = ".array2string($via));
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if ($via === 'all-apps' || in_array($app, (array)$via))
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{
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//error_log(__METHOD__."('$app', '$lang') additional invalidate translations $load:$lang");
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Cache::unsetTree(__CLASS__, $load.':'.$lang);
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Cache::unsetTree(__CLASS__, self::get_lang_file($load, $lang));
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}
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}
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// unset statistics
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Cache::unsetTree(__CLASS__, 'statistics');
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}
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const STATISTIC_CACHE_TIMEOUT = 86400;
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/**
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* Statistical values about how much a language and app is translated, number or valid phrases per $lang or $lang/$app
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*
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* @param string $_lang =null
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* @return array $lang or $app => number pairs
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*/
|
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static function statistics($_lang=null)
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{
|
|
$cache = Cache::getTree(__CLASS__, 'statistics');
|
|
|
|
if (!isset($cache[(string)$_lang]))
|
|
{
|
|
$cache[(string)$_lang] = array();
|
|
if (empty($_lang))
|
|
{
|
|
$en_phrases = array_keys(self::load_app_files(null, 'en', 'all-apps'));
|
|
$cache['']['en'] = count($en_phrases);
|
|
foreach(array_keys(self::get_available_langs()) as $lang)
|
|
{
|
|
if ($lang == 'en') continue;
|
|
$lang_phrases = array_keys(self::load_app_files(null, $lang, 'all-apps'));
|
|
$valid_phrases = array_intersect($lang_phrases, $en_phrases);
|
|
$cache[''][$lang] = count($valid_phrases);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$cache['en'] = array();
|
|
foreach(scandir(EGW_SERVER_ROOT) as $app)
|
|
{
|
|
if ($app[0] == '.' || !is_dir(EGW_SERVER_ROOT.'/'.$app) ||
|
|
!file_exists(self::get_lang_file($app, 'en')))
|
|
{
|
|
continue;
|
|
}
|
|
$en_phrases = array_keys(self::load_app_files(null, 'en', $app));
|
|
if (count($en_phrases) <= 2) continue;
|
|
$cache['en'][$app] = count($en_phrases);
|
|
$lang_phrases = array_keys(self::load_app_files(null, $_lang, $app));
|
|
$valid_phrases = array_intersect($lang_phrases, $en_phrases);
|
|
$cache[$_lang][$app] = count($valid_phrases);
|
|
}
|
|
asort($cache['en'], SORT_NUMERIC);
|
|
$cache['en'] = array_reverse($cache['en'], true);
|
|
}
|
|
asort($cache[(string)$_lang], SORT_NUMERIC);
|
|
$cache[(string)$_lang] = array_reverse($cache[(string)$_lang], true);
|
|
Cache::setTree(__CLASS__, 'statistics', $cache, self::STATISTIC_CACHE_TIMEOUT);
|
|
}
|
|
return $cache[(string)$_lang];
|
|
}
|
|
|
|
/**
|
|
* Get a state / etag for a given app's translations
|
|
*
|
|
* We currently only use a single state for all none-instance-specific apps depending on self::max_lang_time().
|
|
*
|
|
* @param string $_app
|
|
* @param string $_lang
|
|
* @return string
|
|
*/
|
|
static function etag($_app, $_lang)
|
|
{
|
|
if (!in_array($_app, self::$instance_specific_translations))
|
|
{
|
|
// check if cache is NOT invalided by checking if we have a modification time for concerned lang-file
|
|
$time = Cache::getTree(__CLASS__, $file=self::get_lang_file($_app, $_lang));
|
|
// if we dont have one, cache has been invalidated and we need to load translations
|
|
if (!isset($time)) self::add_app($_app, $_lang);
|
|
|
|
$etag = self::max_lang_time();
|
|
}
|
|
else
|
|
{
|
|
$etag = md5(json_encode(Cache::getCache(Cache::INSTANCE, __CLASS__, $_app.':'.$_lang)));
|
|
}
|
|
//error_log(__METHOD__."('$_app', '$_lang') returning '$etag'");
|
|
return $etag;
|
|
}
|
|
|
|
/**
|
|
* Get or set maximum / latest modification-time for files of not instance-specific translations
|
|
*
|
|
* @param type $time
|
|
* @return type
|
|
*/
|
|
static function max_lang_time($time=null)
|
|
{
|
|
static $max_lang_time = null;
|
|
|
|
if (!isset($max_lang_time) || isset($time))
|
|
{
|
|
$max_lang_time = Cache::getTree(__CLASS__, 'max_lang_time');
|
|
}
|
|
if (isset($time) && $time > $max_lang_time)
|
|
{
|
|
//error_log(__METHOD__."($time) updating previous max_lang_time=$max_lang_time to $time");
|
|
Cache::setTree(__CLASS__, 'max_lang_time', $max_lang_time=$time);
|
|
}
|
|
return $max_lang_time;
|
|
}
|
|
|
|
/**
|
|
* Loads translations for an application direct from the lang-file(s)
|
|
*
|
|
* Never use directly, use add_app(), which employes caching (it has to be public, to act as callback for the cache!).
|
|
*
|
|
* @param string $app name of the application to add (or 'common' for the general translations)
|
|
* @param string $lang =false 2 or 5 char lang-code or false for the users language
|
|
* @param string $just_app_file =null if given only that app is loaded ignoring self::$load_via
|
|
* @param boolean $updated_load_via =false on return true if self::$load_via was updated
|
|
* @return array the loaded strings
|
|
*/
|
|
static function &load_app_files($app, $lang, $just_app_file=null, &$updated_load_via=false)
|
|
{
|
|
//$start = microtime(true);
|
|
$load_app = isset($just_app_file) ? $just_app_file : (isset(self::$load_via[$app]) ? self::$load_via[$app] : $app);
|
|
$loaded = array();
|
|
foreach($load_app == 'all-apps' ? scandir(EGW_SERVER_ROOT) : (array)$load_app as $app_dir)
|
|
{
|
|
if ($load_app == 'all-apps' && $app_dir=='..') continue; // do not try to break out of egw server root
|
|
if ($app_dir[0] == '.' || !is_dir(EGW_SERVER_ROOT.'/'.$app_dir) ||
|
|
!@file_exists($file=self::get_lang_file($app_dir, $lang)) ||
|
|
!($f = fopen($file, 'r')))
|
|
{
|
|
continue;
|
|
}
|
|
// store ctime of file we parse
|
|
Cache::setTree(__CLASS__, $file, $time=filemtime($file));
|
|
self::max_lang_time($time);
|
|
|
|
$line_nr = 0;
|
|
//use fgets and split the line, as php5.3.3 with squeeze does not support splitting lines with fgetcsv while reading properly
|
|
//if the first letter after the delimiter is a german umlaut (UTF8 representation thereoff)
|
|
//while(($line = fgetcsv($f, 1024, "\t")))
|
|
while(($read = fgets($f)))
|
|
{
|
|
$line = explode("\t", trim($read));
|
|
++$line_nr;
|
|
if (count($line) != 4) continue;
|
|
list($l_id,$l_app,$l_lang,$l_translation) = $line;
|
|
if ($l_lang != $lang) continue;
|
|
if (!isset($just_app_file) && $l_app != $app)
|
|
{
|
|
// check if $l_app contained in file in $app_dir is mentioned in $load_via
|
|
if ($l_app != $app_dir && (!isset(self::$load_via[$l_app]) ||
|
|
!array_intersect((array)self::$load_via[$l_app], array('all-apps', $app_dir))))
|
|
{
|
|
if (!isset(self::$load_via[$l_app]) && !file_exists(EGW_SERVER_ROOT.'/'.$l_app))
|
|
{
|
|
error_log(__METHOD__."() lang file $file contains invalid app '$l_app' on line $line_nr --> ignored");
|
|
continue;
|
|
}
|
|
// if not update load_via accordingly and store it as config
|
|
//error_log(__METHOD__."() load_via does not contain $l_app => $app_dir");
|
|
if (!isset(self::$load_via[$l_app])) self::$load_via[$l_app] = array($l_app);
|
|
if (!is_array(self::$load_via[$l_app])) self::$load_via[$l_app] = array(self::$load_via[$l_app]);
|
|
self::$load_via[$l_app][] = $app_dir;
|
|
$updated_load_via = true;
|
|
}
|
|
else if ($l_app != $app_dir &&
|
|
array_intersect((array)self::$load_via[$l_app], array('all-apps', $app_dir)))
|
|
{
|
|
$loaded[$l_id] = $l_translation;
|
|
}
|
|
continue;
|
|
}
|
|
$loaded[$l_id] = $l_translation;
|
|
}
|
|
fclose($f);
|
|
}
|
|
//error_log(__METHOD__."('$app', '$lang') returning ".(is_array($loaded)?'Array('.count($loaded).')':array2string($loaded))." in ".number_format(microtime(true)-$start,3)." secs".' '.function_backtrace());
|
|
return $loaded;
|
|
}
|
|
|
|
/**
|
|
* Update tree-wide stored load_via with our changes
|
|
*
|
|
* Merging in meantime stored changes from other instances to minimize race-conditions
|
|
*/
|
|
protected static function update_load_via()
|
|
{
|
|
if (($load_via = Cache::getTree(__CLASS__, 'load_via')) &&
|
|
// little sanity check: cached array contains all stock keys, otherwise ignore it
|
|
!array_diff_key(self::$load_via, $load_via))
|
|
{
|
|
foreach($load_via as $app => $via)
|
|
{
|
|
if (self::$load_via[$app] != $via)
|
|
{
|
|
//error_log(__METHOD__."() setting load_via[$app]=".array2string($via));
|
|
self::$load_via[$app] = array_unique(array_merge((array)self::$load_via[$app], (array)$via));
|
|
}
|
|
}
|
|
}
|
|
Cache::setTree(__CLASS__, 'load_via', self::$load_via);
|
|
}
|
|
|
|
/**
|
|
* Cached languages
|
|
*
|
|
* @var array
|
|
*/
|
|
static $langs;
|
|
|
|
/**
|
|
* Returns a list of available languages / translations
|
|
*
|
|
* @param boolean $translate =true translate language-names
|
|
* @param boolean $force_read =false force a re-read of the languages
|
|
* @return array with lang-code => descriptiv lang-name pairs
|
|
*/
|
|
static function get_available_langs($translate=true, $force_read=false)
|
|
{
|
|
if (!is_array(self::$langs) || $force_read)
|
|
{
|
|
if (!($f = fopen($file=EGW_SERVER_ROOT.'/setup/lang/languages','rb')))
|
|
{
|
|
throw new Exception("List of available languages (%1) missing!", $file);
|
|
}
|
|
while(($line = fgetcsv($f, null, "\t")))
|
|
{
|
|
self::$langs[$line[0]] = $line[1];
|
|
}
|
|
fclose($f);
|
|
|
|
if ($translate)
|
|
{
|
|
if (is_null(self::$db)) self::init(false);
|
|
|
|
foreach(self::$langs as $lang => $name)
|
|
{
|
|
self::$langs[$lang] = self::translate($name,False,'');
|
|
}
|
|
}
|
|
uasort(self::$langs,'strcasecmp');
|
|
}
|
|
return self::$langs;
|
|
}
|
|
|
|
/**
|
|
* Returns a list of installed languages / translations
|
|
*
|
|
* Translations no longer need to be installed, therefore all available translations are returned here.
|
|
*
|
|
* @param boolean $force_read =false force a re-read of the languages
|
|
* @return array with lang-code => descriptiv lang-name pairs
|
|
*/
|
|
static function get_installed_langs($force_read=false)
|
|
{
|
|
return self::get_available_langs($force_read);
|
|
}
|
|
|
|
/**
|
|
* translates a 2 or 5 char lang-code into a (verbose) language
|
|
*
|
|
* @param string $lang
|
|
* @return string|false language or false if not found
|
|
*/
|
|
static function lang2language($lang)
|
|
{
|
|
if (isset(self::$langs[$lang])) // no need to query the DB
|
|
{
|
|
return self::$langs[$lang];
|
|
}
|
|
return self::$db->select(self::LANGUAGES_TABLE,'lang_name',array('lang_id' => $lang),__LINE__,__FILE__)->fetchColumn();
|
|
}
|
|
|
|
/**
|
|
* List all languages, first available ones, then the rest
|
|
*
|
|
* @param boolean $force_read =false
|
|
* @return array with lang_id => lang_name pairs
|
|
*/
|
|
static function list_langs($force_read=false)
|
|
{
|
|
if (!$force_read)
|
|
{
|
|
return Cache::getInstance(__CLASS__,'list_langs',array(__CLASS__,'list_langs'),array(true));
|
|
}
|
|
$languages = self::get_installed_langs(); // available languages
|
|
$availible = "('".implode("','",array_keys($languages))."')";
|
|
|
|
// this shows first the installed, then the available and then the rest
|
|
foreach(self::$db->select(self::LANGUAGES_TABLE,array(
|
|
'lang_id','lang_name',
|
|
"CASE WHEN lang_id IN $availible THEN 1 ELSE 0 END AS availible",
|
|
),"lang_id NOT IN ('".implode("','",array_keys($languages))."')",__LINE__,__FILE__,false,' ORDER BY availible DESC,lang_name') as $row)
|
|
{
|
|
$languages[$row['lang_id']] = $row['lang_name'];
|
|
}
|
|
return $languages;
|
|
}
|
|
|
|
/**
|
|
* provides centralization and compatibility to locate the lang files
|
|
*
|
|
* @param string $app application name
|
|
* @param string $lang language code
|
|
* @return the full path of the filename for the requested app and language
|
|
*/
|
|
static function get_lang_file($app,$lang,$root=EGW_SERVER_ROOT)
|
|
{
|
|
if ($app == 'common') $app = 'api';
|
|
|
|
return $root.'/'.$app.'/'.self::LANG_DIR.'/'.self::LANGFILE_PREFIX.$lang.self::LANGFILE_EXTENSION;
|
|
}
|
|
|
|
/**
|
|
* returns a list of installed charsets
|
|
*
|
|
* @return array with charset as key and comma-separated list of langs useing the charset as data
|
|
*/
|
|
static function get_installed_charsets()
|
|
{
|
|
static $charsets=null;
|
|
|
|
if (!isset($charsets))
|
|
{
|
|
$charsets = array(
|
|
'utf-8' => lang('Unicode').' (utf-8)',
|
|
'iso-8859-1' => lang('Western european').' (iso-8859-1)',
|
|
'iso-8859-2' => lang('Eastern european').' (iso-8859-2)',
|
|
'iso-8859-7' => lang('Greek').' (iso-8859-7)',
|
|
'euc-jp' => lang('Japanese').' (euc-jp)',
|
|
'euc-kr' => lang('Korean').' (euc-kr)',
|
|
'koi8-r' => lang('Russian').' (koi8-r)',
|
|
'windows-1251' => lang('Bulgarian').' (windows-1251)',
|
|
'cp850' => lang('DOS International').' (CP850)',
|
|
);
|
|
}
|
|
return $charsets;
|
|
}
|
|
|
|
/**
|
|
* Transliterate utf-8 filename to ascii, eg. 'Äpfel' --> 'Aepfel'
|
|
*
|
|
* @param string $_str
|
|
* @return string
|
|
*/
|
|
static function to_ascii($_str)
|
|
{
|
|
static $extra = array(
|
|
'ß' => 'ss',
|
|
'̈' => 'e', // mb_convert_encoding return ̈ for all German umlauts
|
|
);
|
|
if (function_exists('mb_convert_encoding'))
|
|
{
|
|
$entities = mb_convert_encoding($_str, 'html-entities', self::charset());
|
|
}
|
|
else
|
|
{
|
|
$entities = htmlentities($_str, ENT_QUOTES, self::charset());
|
|
}
|
|
|
|
$estr = str_replace(array_keys($extra),array_values($extra), $entities);
|
|
$ustr = preg_replace('/&([aAuUoO])uml;/','\\1e', $estr); // replace german umlauts with the letter plus one 'e'
|
|
$astr = preg_replace('/&([a-zA-Z])(grave|acute|circ|ring|cedil|tilde|slash|uml);/','\\1', $ustr); // remove all types of accents
|
|
|
|
return preg_replace('/[^\x20-\x7f]/', '', // remove all non-ascii
|
|
preg_replace('/&([a-zA-Z]+|#[0-9]+|);/','', $astr)); // remove all other entities
|
|
}
|
|
|
|
/**
|
|
* converts a string $data from charset $from to charset $to
|
|
*
|
|
* @param string|array $data string(s) to convert
|
|
* @param string|boolean $from charset $data is in or False if it should be detected
|
|
* @param string|boolean $to charset to convert to or False for the system-charset the converted string
|
|
* @param boolean $check_to_from =true internal to bypass all charset replacements
|
|
* @return NULL|string|array converted string(s) from $data
|
|
*/
|
|
static function convert($data,$from=False,$to=False,$check_to_from=true)
|
|
{
|
|
if (empty($data))
|
|
{
|
|
return $data; // no need for any charset conversation (NULL, '', 0, '0', array())
|
|
}
|
|
if ($check_to_from)
|
|
{
|
|
if ($from) $from = strtolower($from);
|
|
|
|
if ($to) $to = strtolower($to);
|
|
|
|
if (!$from)
|
|
{
|
|
$from = self::$mbstring ? strtolower(mb_detect_encoding($data)) : 'iso-8859-1';
|
|
if($from == 'ascii')
|
|
{
|
|
$from = 'iso-8859-1';
|
|
}
|
|
//echo "<p>autodetected charset of '$data' = '$from'</p>\n";
|
|
}
|
|
/*
|
|
php does not seem to support gb2312
|
|
but seems to be able to decode it as EUC-CN
|
|
*/
|
|
switch($from)
|
|
{
|
|
case 'ks_c_5601-1987':
|
|
$from = 'CP949';
|
|
break;
|
|
case 'gb2312':
|
|
case 'gb18030':
|
|
$from = 'EUC-CN';
|
|
break;
|
|
case 'windows-1252':
|
|
case 'mswin1252':
|
|
if (function_exists('iconv'))
|
|
{
|
|
$prefer_iconv = true;
|
|
break;
|
|
}
|
|
// fall throught to remap to iso-8859-1
|
|
case 'us-ascii':
|
|
case 'macroman':
|
|
case 'iso8859-1':
|
|
case 'windows-1258':
|
|
$from = 'iso-8859-1';
|
|
break;
|
|
case 'windows-1250':
|
|
$from = 'iso-8859-2';
|
|
break;
|
|
case 'windows-1253':
|
|
$from = 'iso-8859-7';
|
|
break;
|
|
case 'windows-1257':
|
|
$from = 'iso-8859-13';
|
|
break;
|
|
case 'windows-874':
|
|
case 'tis-620':
|
|
case 'windows-1256':
|
|
$prefer_iconv = true;
|
|
break;
|
|
}
|
|
if (!$to)
|
|
{
|
|
$to = self::charset();
|
|
}
|
|
if ($from == $to || !$from || !$to || !$data)
|
|
{
|
|
return $data;
|
|
}
|
|
}
|
|
if (is_array($data))
|
|
{
|
|
foreach($data as $key => $str)
|
|
{
|
|
$ret[$key] = empty($str) ? $str : // do NOT convert null to '' (other empty values need no conversation too)
|
|
self::convert($str,$from,$to,false); // false = bypass the above checks, as they are already done
|
|
}
|
|
return $ret;
|
|
}
|
|
if ($from == 'iso-8859-1' && $to == 'utf-8')
|
|
{
|
|
return utf8_encode($data);
|
|
}
|
|
if ($to == 'iso-8859-1' && $from == 'utf-8')
|
|
{
|
|
return utf8_decode($data);
|
|
}
|
|
try {
|
|
if (self::$mbstring && !$prefer_iconv && ($data = @mb_convert_encoding($data, $to, $from)) != '')
|
|
{
|
|
return $data;
|
|
}
|
|
}
|
|
catch (\ValueError $e) {
|
|
// ignore encodings unknown to mb_convert_encoding
|
|
}
|
|
if (function_exists('iconv'))
|
|
{
|
|
// iconv can not convert from/to utf7-imap
|
|
if ($to == 'utf7-imap' && function_exists(imap_utf7_encode))
|
|
{
|
|
$data_iso = iconv($from, 'iso-8859-1', $data);
|
|
$convertedData = imap_utf7_encode($data_iso);
|
|
|
|
return $convertedData;
|
|
}
|
|
|
|
if ($from == 'utf7-imap' && function_exists(imap_utf7_decode))
|
|
{
|
|
$data_iso = imap_utf7_decode($data);
|
|
$convertedData = iconv('iso-8859-1', $to, $data_iso);
|
|
|
|
return $convertedData;
|
|
}
|
|
|
|
// the following is to workaround patch #962307
|
|
// if using EUC-CN, for iconv it strickly follow GB2312 and fail
|
|
// in an email on the first Traditional/Japanese/Korean character,
|
|
// but in reality when people send mails in GB2312, UMA mostly use
|
|
// extended GB13000/GB18030 which allow T/Jap/Korean characters.
|
|
if($from == 'euc-cn')
|
|
{
|
|
$from = 'gb18030';
|
|
}
|
|
|
|
if (($convertedData = iconv($from,$to,$data)))
|
|
{
|
|
return $convertedData;
|
|
}
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* converts a string $data from charset $from to something that is json_encode tested
|
|
*
|
|
* @param string|array $_data string(s) to convert
|
|
* @param string|boolean $from charset $data is in or False if it should be detected
|
|
* @return string|array converted string(s) from $data
|
|
*/
|
|
static function convert_jsonsafe($_data,$from=False)
|
|
{
|
|
if ($from===false) $from = self::detect_encoding($_data);
|
|
|
|
$data = self::convert($_data, strtolower($from));
|
|
|
|
// in a way, this tests if we are having real utf-8 (the displayCharset) by now; we should if charsets reported (or detected) are correct
|
|
if (strtoupper(self::charset()) == 'UTF-8')
|
|
{
|
|
$test = @json_encode($data);
|
|
//error_log(__METHOD__.__LINE__.' ->'.strlen($data).' Error:'.json_last_error().'<- data:#'.$test.'#');
|
|
if (($test=="null" || $test === false || is_null($test)) && strlen($data)>0)
|
|
{
|
|
// try to fix broken utf8
|
|
$x = (function_exists('mb_convert_encoding')?mb_convert_encoding($data,'UTF-8','UTF-8'):(function_exists('iconv')?@iconv("UTF-8","UTF-8//IGNORE",$data):$data));
|
|
$test = @json_encode($x);
|
|
if (($test=="null" || $test === false || is_null($test)) && strlen($data)>0)
|
|
{
|
|
// this should not be needed, unless something fails with charset detection/ wrong charset passed
|
|
error_log(__METHOD__.__LINE__.' Charset Reported:'.$from.' Charset Detected:'.self::detect_encoding($data));
|
|
$data = utf8_encode($data);
|
|
}
|
|
else
|
|
{
|
|
$data = $x;
|
|
}
|
|
}
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* insert/update/delete one phrase in the lang-table
|
|
*
|
|
* @param string $lang
|
|
* @param string $app
|
|
* @param string $message_id
|
|
* @param string $content translation or null to delete translation
|
|
*/
|
|
static function write($lang,$app,$message_id,$content)
|
|
{
|
|
if ($content)
|
|
{
|
|
self::$db->insert(self::LANG_TABLE,array(
|
|
'content' => $content,
|
|
),array(
|
|
'lang' => $lang,
|
|
'app_name' => $app,
|
|
'message_id' => $message_id,
|
|
),__LINE__,__FILE__);
|
|
}
|
|
else
|
|
{
|
|
self::$db->delete(self::LANG_TABLE,array(
|
|
'lang' => $lang,
|
|
'app_name' => $app,
|
|
'message_id' => $message_id,
|
|
),__LINE__,__FILE__);
|
|
}
|
|
// invalidate the cache
|
|
if(!in_array($app,self::$instance_specific_translations))
|
|
{
|
|
Cache::unsetCache(Cache::TREE,__CLASS__,$app.':'.$lang);
|
|
}
|
|
else
|
|
{
|
|
foreach(array_keys((array)self::get_installed_langs()) as $key)
|
|
{
|
|
Cache::unsetCache(Cache::INSTANCE,__CLASS__,$app.':'.$key);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* read one phrase from the lang-table
|
|
*
|
|
* @param string $lang
|
|
* @param string $app_name
|
|
* @param string $message_id
|
|
* @return string|boolean content or false if not found
|
|
*/
|
|
static function read($lang,$app_name,$message_id)
|
|
{
|
|
return self::$db->select(self::LANG_TABLE,'content',array(
|
|
'lang' => $lang,
|
|
'app_name' => $app_name,
|
|
'message_id' => $message_id,
|
|
),__LINE__,__FILE__)->fetchColumn();
|
|
}
|
|
|
|
/**
|
|
* Return the message_id of a given translation
|
|
*
|
|
* @param string $translation
|
|
* @param string $app ='' default check all apps
|
|
* @param string $lang ='' default check all langs
|
|
* @return string
|
|
*/
|
|
static function get_message_id($translation,$app=null,$lang=null)
|
|
{
|
|
$where = array('content '.self::$db->capabilities[Db::CAPABILITY_CASE_INSENSITIV_LIKE].' '.self::$db->quote($translation));
|
|
if ($app) $where['app_name'] = $app;
|
|
if ($lang) $where['lang'] = $lang;
|
|
|
|
$id = self::$db->select(self::LANG_TABLE,'message_id',$where,__LINE__,__FILE__)->fetchColumn();
|
|
|
|
// Check cache, since most things aren't in the DB anymore
|
|
if(!$id)
|
|
{
|
|
$ids = array_filter(array_keys(self::$lang_arr), function($haystack) use($translation) {
|
|
return stripos(self::$lang_arr[$haystack],$translation) !== false;
|
|
});
|
|
$id = array_shift($ids);
|
|
if(!$id && ($lang && $lang !== 'en' || self::$userlang != 'en'))
|
|
{
|
|
// Try english
|
|
if (in_array($app, self::$instance_specific_translations))
|
|
{
|
|
$instance_level[] = $app.':en';
|
|
}
|
|
else
|
|
{
|
|
$tree_level[] = $app.':en';
|
|
}
|
|
|
|
// load all translations from cache at once
|
|
if ($tree_level) $lang_arr = Cache::getTree(__CLASS__, $tree_level);
|
|
if ($instance_level) $lang_arr = Cache::getInstance(__CLASS__, $instance_level);
|
|
$lang_arr = $lang_arr[$app.':en'] ?? [];
|
|
$ids = array_filter(array_keys($lang_arr), function($haystack) use($translation, $lang_arr) {
|
|
return stripos($lang_arr[$haystack],$translation) !== false;
|
|
});
|
|
$id = array_shift($ids);
|
|
}
|
|
}
|
|
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* detect_encoding - try to detect the encoding
|
|
* only to be used if the string in question has no structure that determines his encoding
|
|
*
|
|
* @param string - to be evaluated
|
|
* @param string $verify =null encoding to verify, get checked first and have a match for only ascii or no detection available
|
|
* @return string - encoding
|
|
*/
|
|
static function detect_encoding($string, $verify=null)
|
|
{
|
|
if (function_exists('iconv'))
|
|
{
|
|
$list = array('utf-8', 'iso-8859-1', 'windows-1251'); // list may be extended
|
|
|
|
if ($verify) array_unshift($list, $verify);
|
|
|
|
foreach ($list as $item)
|
|
{
|
|
$sample = iconv($item, $item, $string);
|
|
if ($sample == $string)
|
|
{
|
|
return $item;
|
|
}
|
|
}
|
|
}
|
|
if (self::$mbstring)
|
|
{
|
|
$detected = strtolower(mb_detect_encoding($string));
|
|
}
|
|
if ($verify && (!isset($detected) || $detected === 'ascii'))
|
|
{
|
|
return $verify; // ascii matches all charsets
|
|
}
|
|
return isset($detected) ? $detected : 'iso-8859-1'; // we choose to return iso-8859-1 as default
|
|
}
|
|
} |