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Merge pull request #504 from Flatta/feature-detectlang

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Detect user language (Feature request)
This commit is contained in:
Serghey Rodin 2015-11-23 13:37:01 +02:00
commit 0d2dc08d74
8 changed files with 125 additions and 101 deletions
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112
web/inc/i18n.php Normal file
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@ -0,0 +1,112 @@
<?php
// Functions for internationalization
/**
* Translates string to given language in first parameter, key given in second parameter (dynamically loads required language). Works like spritf from second parameter
* @global array $LANG Associative array of language pharses
* @return string Translated string
*/
function _translate() {
global $LANG;
$args = func_get_args();
$l = $args[0];
if (!$l) return 'NO LANGUAGE DEFINED';
$key = $args[1];
if (!isset($LANG[$l])) {
require_once($_SERVER['DOCUMENT_ROOT'].'/inc/i18n/'.$l.'.php');
}
if (!isset($LANG[$l][$key])) {
$text=$key;
} else {
$text=$LANG[$l][$key];
}
array_shift($args);
if (count($args)>1) {
$args[0] = $text;
return call_user_func_array("sprintf",$args);
} else {
return $text;
}
}
/**
* Translates string by a given key in first parameter to current session language. Works like sprintf
* @global array $LANG Associative array of language pharses
* @return string Translated string
* @see _translate()
*/
function __() {
$args = func_get_args();
array_unshift($args,$_SESSION['language']);
return call_user_func_array("_translate",$args);
}
/**
* Detects user language from Accept-Language HTTP header.
* @param string Fallback language (default: 'en')
* @return string Language code (such as 'en' and 'ja')
*/
function detect_user_language($fallback='en') {
static $user_lang = '';
// Already detected
if (!empty($user_lang)) return $user_lang;
// Check if Accept-Language header is available
if (!isset($_SERVER) ||
!isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ||
!is_string($_SERVER['HTTP_ACCEPT_LANGUAGE'])
) {
// Store result for reusing
$user_lang = $fallback;
return $user_lang;
}
// Sort Accept-Language by `q` value
$accept_langs = explode(',', preg_replace('/\s/', '', strtolower($_SERVER['HTTP_ACCEPT_LANGUAGE'])));
$accept_langs_sorted = [];
foreach ($accept_langs as $lang) {
$div = explode(';q=', $lang, 2);
if (count($div) < 2) {
// `q` value was not specfied
// -> Set default `q` value (1)
$div[] = '1';
}
list($code, $q) = $div;
if (preg_match('/^[\w\-]+$/', $code)) {
// Acceptable language code
$accept_langs_sorted[$code] = (double)$q;
}
}
arsort($accept_langs_sorted);
// List languages
exec (VESTA_CMD."v-list-sys-languages json", $output, $return_var);
$languages = json_decode(implode('', $output), true);
unset($output);
// Find best matching language
foreach ($accept_langs_sorted as $user_lang => $dummy) {
$decision = '';
foreach ($languages as $prov_lang) {
if (strlen($decision) > strlen($prov_lang)) continue;
if (strpos($user_lang, $prov_lang) !== false) {
$decision = $prov_lang;
}
}
if (!empty($decision)) {
// Store result for reusing
$user_lang = $decision;
return $user_lang;
}
}
// Store result for reusing
$user_lang = $fallback;
return $user_lang;
}

50
web/inc/main.php
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@ -1,6 +1,8 @@
<?php
session_start();
require_once($_SERVER['DOCUMENT_ROOT'].'/inc/i18n.php');
// Check system settings
if ((!isset($_SESSION['VERSION'])) && (!defined('NO_AUTH_REQUIRED'))) {
session_destroy();
@ -14,63 +16,15 @@ if ((!isset($_SESSION['user'])) && (!defined('NO_AUTH_REQUIRED'))) {
$_SESSION['request_uri'] = $_SERVER['REQUEST_URI'];
header("Location: /login/");
exit;
}
if (isset($_SESSION['user'])) {
require_once($_SERVER['DOCUMENT_ROOT'].'/inc/i18n/'.$_SESSION['language'].'.php');
if(!isset($_SESSION['token'])){
$token = uniqid(mt_rand(), true);
$_SESSION['token'] = $token;
}
}
/**
* Translates string by a given key in first parameter to current session language. Works like sprintf
* @global array $LANG Associative array of language pharses
* @return string Translated string
* @see _translate()
*/
function __() {
$args = func_get_args();
array_unshift($args,$_SESSION['language']);
return call_user_func_array("_translate",$args);
}
/**
* Translates string to given language in first parameter, key given in second parameter (dynamically loads required language). Works like spritf from second parameter
* @global array $LANG Associative array of language pharses
* @return string Translated string
*/
function _translate() {
global $LANG;
$args = func_get_args();
$l = $args[0];
if (!$l) return 'NO LANGUAGE DEFINED';
$key = $args[1];
if (!isset($LANG[$l])) {
require_once($_SERVER['DOCUMENT_ROOT'].'/inc/i18n/'.$l.'.php');
}
if (!isset($LANG[$l][$key])) {
$text=$key;
} else {
$text=$LANG[$l][$key];
}
array_shift($args);
if (count($args)>1) {
$args[0] = $text;
return call_user_func_array("sprintf",$args);
} else {
return $text;
}
}
define('VESTA_CMD', '/usr/bin/sudo /usr/local/vesta/bin/');
$i = 0;