156 lines
4.8 KiB
PHP
156 lines
4.8 KiB
PHP
<?php
|
||
|
||
/**
|
||
* Questlab
|
||
*
|
||
* @author Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
|
||
* @copyright 2014 – 2016 Heinrich-Heine-Universität Düsseldorf
|
||
* @license http://www.gnu.org/licenses/gpl.html
|
||
* @link https://github.com/coderkun/questlab
|
||
*/
|
||
|
||
namespace hhu\z\agents\toplevel;
|
||
|
||
|
||
/**
|
||
* Agent to display a HTML-page.
|
||
*
|
||
* @author Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
|
||
*/
|
||
class HtmlAgent extends \hhu\z\agents\ToplevelAgent
|
||
{
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Construct a new HtmlAgent.
|
||
*
|
||
* @param \nre\core\Request $request Current request
|
||
* @param \nre\core\Response $response Current response
|
||
* @param \nre\core\Logger $log Logger instance
|
||
*/
|
||
protected function __construct(\nre\core\Request $request, \nre\core\Response $response, \nre\core\Logger $log=null)
|
||
{
|
||
parent::__construct($request, $response, $log);
|
||
|
||
|
||
$this->setLanguage($request);
|
||
}
|
||
|
||
|
||
/**
|
||
* Action: index.
|
||
*
|
||
* @param \nre\core\Request $request Current request
|
||
* @param \nre\core\Response $response Current response
|
||
*/
|
||
public function index(\nre\core\Request $request, \nre\core\Response $response)
|
||
{
|
||
// Add menu
|
||
$this->addSubAgent('Menu');
|
||
|
||
// Add Seminary sidebar
|
||
$this->addSubAgent('Seminarybar');
|
||
}
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Set requested language.
|
||
*
|
||
* @param \nre\core\Request $request Current request
|
||
*/
|
||
private function setLanguage(\nre\core\Request $request)
|
||
{
|
||
// Set domain
|
||
$domain = \nre\configs\AppConfig::$app['genericname'];
|
||
|
||
// Get language
|
||
$locale = $this->determineLanguage($request);
|
||
|
||
// Set Locale and Load translation
|
||
if(!is_null($locale))
|
||
{
|
||
putenv("LC_ALL=$locale");
|
||
setlocale(LC_ALL, $locale);
|
||
\Locale::setDefault($locale);
|
||
|
||
bindtextdomain($domain, ROOT.DS.\nre\configs\AppConfig::$dirs['locale']);
|
||
textdomain($domain);
|
||
}
|
||
}
|
||
|
||
|
||
/**
|
||
* Determine which language is either requested directly or by browser
|
||
* setting.
|
||
*
|
||
* @param \nre\core\Request $request Current request
|
||
* @return string Requested language or default one
|
||
*/
|
||
private function determineLanguage(\nre\core\Request $request)
|
||
{
|
||
// Get supported languages
|
||
$supportedLanguages = \nre\configs\AppConfig::$app['languages'];
|
||
if(empty($supportedLanguages)) {
|
||
return null;
|
||
}
|
||
|
||
// Get requested language
|
||
$language = $request->getGetParam('lang', 'language');
|
||
if(!is_null($language) && array_key_exists($language, $supportedLanguages)) {
|
||
return $supportedLanguages[$language];
|
||
}
|
||
|
||
// Negotiate language
|
||
return $this->negotiateLanguage($supportedLanguages, $request->getBrowserLanguages());
|
||
}
|
||
|
||
|
||
/**
|
||
* Negotiate which language the browser wants most out of the supported
|
||
* languages.
|
||
*
|
||
* @param array $supportedLanguages List of supported languages
|
||
* @param array $browserLanguages List of browser languages
|
||
* @return string Negotiated language or default one
|
||
*/
|
||
private function negotiateLanguage($supportedLanguages, $browserLanguages)
|
||
{
|
||
if(!is_null($browserLanguages))
|
||
{
|
||
// Create array with languages and their ratings
|
||
$parsedLanguages = array();
|
||
$languages = explode(',', $browserLanguages);
|
||
foreach($languages as &$language)
|
||
{
|
||
if(($pos = strpos($language, ';q=')) !== false) {
|
||
$parsedLanguages[substr($language, 1, min(2, $pos-1))] = floatval(substr($language, $pos+3));
|
||
}
|
||
else {
|
||
$parsedLanguages[$language] = 1.0;
|
||
}
|
||
}
|
||
|
||
// Sort languages by their ratings
|
||
arsort($parsedLanguages);
|
||
|
||
// Get highest supported language
|
||
foreach($parsedLanguages as $language => $rating) {
|
||
if(array_key_exists($language, $supportedLanguages)) {
|
||
return $supportedLanguages[$language];
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
// Return default language
|
||
return $supportedLanguages[array_keys($supportedLanguages)[0]];
|
||
}
|
||
|
||
}
|
||
|
||
?>
|