mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-23 15:18:58 +01:00
524 lines
16 KiB
PHP
524 lines
16 KiB
PHP
<?php
|
|
/**
|
|
* The NLS:: class provides Native Language Support. This includes common
|
|
* methods for handling language detection and selection, timezones, and
|
|
* hostname->country lookups.
|
|
*
|
|
* $Horde: framework/NLS/NLS.php,v 1.86 2005/02/28 15:45:56 jan Exp $
|
|
*
|
|
* Copyright 1999-2005 Jon Parise <jon@horde.org>
|
|
* Copyright 1999-2005 Chuck Hagenbuch <chuck@horde.org>
|
|
* Copyright 2002-2005 Jan Schneider <jan@horde.org>
|
|
* Copyright 2003-2005 Michael Slusarz <slusarz@bigworm.colorado.edu>
|
|
*
|
|
* See the enclosed file COPYING for license information (LGPL). If you
|
|
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
|
|
*
|
|
* @author Jon Parise <jon@horde.org>
|
|
* @author Chuck Hagenbuch <chuck@horde.org>
|
|
* @author Jan Schneider <jan@horde.org>
|
|
* @author Michael Slusarz <slusarz@bigworm.colorado.edu>
|
|
* @version $Revision$
|
|
* @since Horde 3.0
|
|
* @package Horde_NLS
|
|
*/
|
|
class NLS {
|
|
|
|
/**
|
|
* Selects the most preferred language for the current client session.
|
|
*
|
|
* @access public
|
|
*
|
|
* @return string The selected language abbreviation.
|
|
*/
|
|
function select()
|
|
{
|
|
global $nls, $prefs;
|
|
|
|
$lang = Util::getFormData('new_lang');
|
|
|
|
/* First, check if language pref is locked and, if so, set it to its
|
|
value */
|
|
if (isset($prefs) && $prefs->isLocked('language')) {
|
|
$language = $prefs->getValue('language');
|
|
/* Check if the user selected a language from the login screen */
|
|
} elseif (!empty($lang)) {
|
|
$language = $lang;
|
|
/* Check if we have a language set in a cookie */
|
|
} elseif (isset($_SESSION['horde_language'])) {
|
|
$language = $_SESSION['horde_language'];
|
|
/* Use site-wide default, if one is defined */
|
|
} elseif (!empty($nls['defaults']['language'])) {
|
|
$language = $nls['defaults']['language'];
|
|
/* Try browser-accepted languages. */
|
|
} elseif (!empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
|
|
/* The browser supplies a list, so return the first valid one. */
|
|
$browser_langs = explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
|
|
foreach ($browser_langs as $lang) {
|
|
/* Strip quality value for language */
|
|
if (($pos = strpos($lang, ';')) !== false) {
|
|
$lang = substr($lang, 0, $pos);
|
|
}
|
|
$lang = NLS::_map(trim($lang));
|
|
if (NLS::isValid($lang)) {
|
|
$language = $lang;
|
|
break;
|
|
}
|
|
/* In case no full match, save best guess based on prefix */
|
|
if (!isset($partial_lang) &&
|
|
NLS::isValid(NLS::_map(substr($lang, 0, 2)))) {
|
|
$partial_lang = NLS::_map(substr($lang, 0, 2));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!isset($language)) {
|
|
if (isset($partial_lang)) {
|
|
$language = $partial_lang;
|
|
} else {
|
|
/* No dice auto-detecting, default to US English. */
|
|
$language = 'en_US';
|
|
}
|
|
}
|
|
|
|
return basename($language);
|
|
}
|
|
|
|
/**
|
|
* Sets the language.
|
|
*
|
|
* @access public
|
|
*
|
|
* @param optional string $lang The language abbriviation.
|
|
*/
|
|
function setLang($lang = null)
|
|
{
|
|
include_once HORDE_BASE . '/config/nls.php';
|
|
|
|
if (empty($lang) || !NLS::isValid($lang)) {
|
|
$lang = NLS::select();
|
|
}
|
|
|
|
if (isset($GLOBALS['language']) && $GLOBALS['language'] == $lang) {
|
|
return;
|
|
}
|
|
|
|
$GLOBALS['language'] = $lang;
|
|
|
|
/* First try language with the current charset. */
|
|
$lang_charset = $lang . '.' . NLS::getCharset();
|
|
if ($lang_charset != setlocale(LC_ALL, $lang_charset)) {
|
|
/* Next try language with its default charset. */
|
|
global $nls;
|
|
$charset = !empty($nls['charsets'][$lang]) ? $nls['charsets'][$lang] : $nls['defaults']['charset'];
|
|
$lang_charset = $lang . '.' . $charset;
|
|
NLS::_cachedCharset(0, $charset);
|
|
if ($lang_charset != setlocale(LC_ALL, $lang_charset)) {
|
|
/* At last try language solely. */
|
|
$lang_charset = $lang;
|
|
setlocale(LC_ALL, $lang_charset);
|
|
}
|
|
}
|
|
@putenv('LANG=' . $lang_charset);
|
|
@putenv('LANGUAGE=' . $lang_charset);
|
|
}
|
|
|
|
/**
|
|
* Sets the gettext domain.
|
|
*
|
|
* @access public
|
|
*
|
|
* @param string $app The application name.
|
|
* @param string $directory The directory where the application's
|
|
* LC_MESSAGES directory resides.
|
|
* @param string $charset The charset.
|
|
*/
|
|
function setTextdomain($app, $directory, $charset)
|
|
{
|
|
bindtextdomain($app, $directory);
|
|
textdomain($app);
|
|
|
|
/* The existence of this function depends on the platform. */
|
|
if (function_exists('bind_textdomain_codeset')) {
|
|
NLS::_cachedCharset(0, bind_textdomain_codeset($app, $charset));
|
|
}
|
|
|
|
if (!headers_sent()) {
|
|
header('Content-Type: text/html; charset=' . $charset);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determines whether the supplied language is valid.
|
|
*
|
|
* @access public
|
|
*
|
|
* @param string $language The abbreviated name of the language.
|
|
*
|
|
* @return boolean True if the language is valid, false if it's not
|
|
* valid or unknown.
|
|
*/
|
|
function isValid($language)
|
|
{
|
|
return !empty($GLOBALS['nls']['languages'][$language]);
|
|
}
|
|
|
|
/**
|
|
* Maps languages with common two-letter codes (such as nl) to the
|
|
* full gettext code (in this case, nl_NL). Returns the language
|
|
* unmodified if it isn't an alias.
|
|
*
|
|
* @access private
|
|
*
|
|
* @param string $language The language code to map.
|
|
*
|
|
* @return string The mapped language code.
|
|
*/
|
|
|
|
function _map($language)
|
|
{
|
|
require_once 'Horde/String.php';
|
|
|
|
$aliases = &$GLOBALS['nls']['aliases'];
|
|
|
|
// Translate the $language to get broader matches.
|
|
// (eg. de-DE should match de_DE)
|
|
$trans_lang = str_replace('-', '_', $language);
|
|
$lang_parts = explode('_', $trans_lang);
|
|
$trans_lang = String::lower($lang_parts[0]);
|
|
if (isset($lang_parts[1])) {
|
|
$trans_lang .= '_' . String::upper($lang_parts[1]);
|
|
}
|
|
|
|
// See if we get a match for this
|
|
if (!empty($aliases[$trans_lang])) {
|
|
return $aliases[$trans_lang];
|
|
}
|
|
|
|
// If we get that far down, the language cannot be found.
|
|
// Return $trans_lang.
|
|
return $trans_lang;
|
|
}
|
|
|
|
/**
|
|
* Returns the charset for the current language.
|
|
*
|
|
* @access public
|
|
*
|
|
* @param boolean $original If true returns the original charset of the
|
|
* translation, the actually used one otherwise.
|
|
*
|
|
* @return string The character set that should be used with the current
|
|
* locale settings.
|
|
*/
|
|
function getCharset($original = false)
|
|
{
|
|
global $language, $nls;
|
|
|
|
/* Get cached results. */
|
|
$cacheKey = intval($original);
|
|
$charset = NLS::_cachedCharset($cacheKey);
|
|
if (!is_null($charset)) {
|
|
return $charset;
|
|
}
|
|
|
|
if ($original) {
|
|
$charset = empty($nls['charsets'][$language]) ? $nls['defaults']['charset'] : $nls['charsets'][$language];
|
|
} else {
|
|
require_once 'Horde/Browser.php';
|
|
$browser = &Browser::singleton();
|
|
|
|
if ($browser->hasFeature('utf') &&
|
|
(Util::extensionExists('iconv') ||
|
|
Util::extensionExists('mbstring'))) {
|
|
$charset = 'UTF-8';
|
|
}
|
|
}
|
|
|
|
if (is_null($charset)) {
|
|
$charset = NLS::getExternalCharset();
|
|
}
|
|
|
|
NLS::_cachedCharset($cacheKey, $charset);
|
|
return $charset;
|
|
}
|
|
|
|
|
|
/**
|
|
* Returns the current charset of the environment
|
|
*
|
|
* @access public
|
|
*
|
|
* @return string The character set that should be used with the current
|
|
* locale settings.
|
|
*/
|
|
function getExternalCharset()
|
|
{
|
|
global $language, $nls;
|
|
|
|
/* Get cached results. */
|
|
$charset = NLS::_cachedCharset(2);
|
|
if (!is_null($charset)) {
|
|
return $charset;
|
|
}
|
|
|
|
$lang_charset = setlocale(LC_ALL, 0);
|
|
if (strpos($lang_charset, ';') === false &&
|
|
strpos($lang_charset, '/') === false) {
|
|
$lang_charset = explode('.', $lang_charset);
|
|
if ((count($lang_charset) == 2) && !empty($lang_charset[1])) {
|
|
NLS::_cachedCharset(2, $lang_charset[1]);
|
|
return $lang_charset[1];
|
|
}
|
|
}
|
|
|
|
return (!empty($nls['charsets'][$language])) ? $nls['charsets'][$language] : $nls['defaults']['charset'];
|
|
}
|
|
|
|
/**
|
|
* Sets or returns the charset used under certain conditions.
|
|
*
|
|
* @access private
|
|
*
|
|
* @param integer $index The ID of a cache slot. 0 for the UI charset, 1
|
|
* for the translation charset and 2 for the
|
|
* external charset.
|
|
* @param string $charset If specified, this charset will be stored in the
|
|
* given cache slot. Otherwise the content of the
|
|
* specified cache slot will be returned.
|
|
*/
|
|
function _cachedCharset($index, $charset = null)
|
|
{
|
|
static $cache;
|
|
|
|
if (!isset($cache)) {
|
|
$cache = array();
|
|
}
|
|
|
|
if ($charset == null) {
|
|
return isset($cache[$index]) ? $cache[$index] : null;
|
|
} else {
|
|
$cache[$index] = $charset;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the charset to use for outgoing emails.
|
|
*
|
|
* @return string The preferred charset for outgoing mails based on
|
|
* the user's preferences and the current language.
|
|
*/
|
|
function getEmailCharset()
|
|
{
|
|
global $prefs, $language, $nls;
|
|
|
|
$charset = $prefs->getValue('sending_charset');
|
|
if (!empty($charset)) {
|
|
return $charset;
|
|
}
|
|
return isset($nls['emails'][$language]) ? $nls['emails'][$language] :
|
|
(isset($nls['charsets'][$language]) ? $nls['charsets'][$language] : $nls['defaults']['charset']);
|
|
}
|
|
|
|
/**
|
|
* Check to see if character set is valid for htmlspecialchars() calls.
|
|
*
|
|
* @access public
|
|
*
|
|
* @param string $charset The character set to check.
|
|
*
|
|
* @return boolean Is charset valid for the current system?
|
|
*/
|
|
function checkCharset($charset)
|
|
{
|
|
static $check;
|
|
|
|
if (is_null($charset) || empty($charset)) {
|
|
return false;
|
|
}
|
|
|
|
if (isset($check[$charset])) {
|
|
return $check[$charset];
|
|
} elseif (!isset($check)) {
|
|
$check = array();
|
|
}
|
|
|
|
$valid = true;
|
|
|
|
ini_set('track_errors', 1);
|
|
@htmlspecialchars('', ENT_COMPAT, $charset);
|
|
if (isset($php_errormsg)) {
|
|
$valid = false;
|
|
}
|
|
ini_restore('track_errors');
|
|
|
|
$check[$charset] = $valid;
|
|
|
|
return $valid;
|
|
}
|
|
|
|
/**
|
|
* Sets the current timezone, if available.
|
|
*
|
|
* @access public
|
|
*/
|
|
function setTimeZone()
|
|
{
|
|
global $prefs;
|
|
|
|
$tz = $prefs->getValue('timezone');
|
|
if (!empty($tz)) {
|
|
@putenv('TZ=' . $tz);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the locale info returned by localeconv(), but cache it, to
|
|
* avoid repeated calls.
|
|
*
|
|
* @access public
|
|
*
|
|
* @return array The results of localeconv().
|
|
*/
|
|
function getLocaleInfo()
|
|
{
|
|
static $lc_info;
|
|
|
|
if (!isset($lc_info)) {
|
|
$lc_info = localeconv();
|
|
}
|
|
|
|
return $lc_info;
|
|
}
|
|
|
|
/**
|
|
* Get the language info returned by nl_langinfo(), but cache it, to
|
|
* avoid repeated calls.
|
|
*
|
|
* @access public
|
|
* @since Horde 3.1
|
|
*
|
|
* @param const $item The langinfo item to return.
|
|
*
|
|
* @return array The results of nl_langinfo().
|
|
*/
|
|
function getLangInfo($item)
|
|
{
|
|
static $nl_info = array();
|
|
|
|
if (!isset($nl_info[$item])) {
|
|
$nl_info[$item] = nl_langinfo($item);
|
|
}
|
|
|
|
return $nl_info[$item];
|
|
}
|
|
|
|
/**
|
|
* Get country information from a hostname or IP address.
|
|
*
|
|
* @access public
|
|
*
|
|
* @param string $host The hostname or IP address.
|
|
*
|
|
* @return mixed On success, return an array with the following entries:
|
|
* 'code' => Country Code
|
|
* 'name' => Country Name
|
|
* On failure, return false.
|
|
*/
|
|
function getCountryByHost($host)
|
|
{
|
|
global $conf;
|
|
|
|
/* List of generic domains that we know is not in the country TLD
|
|
list. See: http://www.iana.org/gtld/gtld.htm */
|
|
$generic = array(
|
|
'aero', 'biz', 'com', 'coop', 'edu', 'gov', 'info', 'int', 'mil',
|
|
'museum', 'name', 'net', 'org', 'pro'
|
|
);
|
|
|
|
$checkHost = $host;
|
|
if (preg_match('/^\d+\.\d+\.\d+\.\d+$/', $host)) {
|
|
$checkHost = @gethostbyaddr($host);
|
|
}
|
|
|
|
/* Get the TLD of the hostname. */
|
|
$pos = strrpos($checkHost, '.');
|
|
if ($pos === false) {
|
|
return false;
|
|
}
|
|
$domain = String::lower(substr($checkHost, $pos + 1));
|
|
|
|
/* Try lookup via TLD first. */
|
|
if (!in_array($domain, $generic)) {
|
|
require 'Horde/NLS/tld.php';
|
|
if (isset($tld[$domain])) {
|
|
return array('code' => $domain, 'name' => $tld[$domain]);
|
|
}
|
|
}
|
|
|
|
/* Try GeoIP lookup next. */
|
|
if (!empty($conf['geoip']['datafile'])) {
|
|
require_once 'Horde/NLS/GeoIP.php';
|
|
$geoip = &NLS_GeoIP::singleton($conf['geoip']['datafile']);
|
|
$id = $geoip->countryIdByName($checkHost);
|
|
if (!empty($id)) {
|
|
return array('code' => String::lower($GLOBALS['GEOIP_COUNTRY_CODES'][$id]), 'name' => $GLOBALS['GEOIP_COUNTRY_NAMES'][$id]);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Returns a Horde image link to the country flag.
|
|
*
|
|
* @access public
|
|
*
|
|
* @param string $host The hostname or IP address.
|
|
*
|
|
* @return string The image URL, or the empty string on error.
|
|
*/
|
|
function generateFlagImageByHost($host)
|
|
{
|
|
global $registry;
|
|
|
|
$data = NLS::getCountryByHost($host);
|
|
if ($data !== false) {
|
|
$img = $data['code'] . '.png';
|
|
if (file_exists($registry->get('themesfs', 'horde') . '/graphics/flags/' . $img)) {
|
|
return Horde::img($img, $data['name'], '', $registry->getImageDir('horde') . '/flags');
|
|
} else {
|
|
return '[' . $data['name'] . ']';
|
|
}
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Returns either a specific or all ISO-3166 country names.
|
|
*
|
|
* @access public
|
|
*
|
|
* @param optional string $code The ISO 3166 country code.
|
|
*
|
|
* @return mixed If a country code has been requested will return the
|
|
* corresponding country name. If empty will return an
|
|
* array of all the country codes and their names.
|
|
*/
|
|
function &getCountryISO($code = '')
|
|
{
|
|
static $countries = array();
|
|
if (empty($countries)) {
|
|
require_once 'Horde/NLS/countries.php';
|
|
}
|
|
if (empty($code)) {
|
|
return $countries;
|
|
} elseif (isset($countries[$code])) {
|
|
return $countries[$code];
|
|
}
|
|
return false;
|
|
}
|
|
|
|
}
|