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<?php
/**
 * @package     Joomla.Installation
 * @subpackage  Controller
 *
 * @copyright   (C) 2017 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\CMS\Installation\Controller;

\defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\Installation\Model\SetupModel;
use Joomla\CMS\Language\Language;
use Joomla\CMS\Language\Text;

/**
 * Language controller class for the Joomla Installer.
 *
 * @since  3.1
 */
class LanguageController extends JSONController
{
	/**
	 * Sets the language.
	 *
	 * @return  void
	 *
	 * @since   4.0.0
	 */
	public function set()
	{
		$this->checkValidToken();

// Check for potentially unwritable session
		$session = $this->app->getSession();

if ($session->isNew())
		{
			$this->sendJsonResponse(new \Exception(Text::_('INSTL_COOKIES_NOT_ENABLED'), 500));
		}

/** @var SetupModel $model */
		$model = $this->getModel('Setup');

// Get the posted values from the request and validate them.
		$data   = $this->input->post->get('jform', [], 'array');
		$return = $model->validate($data, 'language');

$r = new \stdClass;

// Check for validation errors.
		if ($return === false)
		{
			/*
			 * The validate method enqueued all messages for us, so we just need to
			 * redirect back to the site setup screen.
			 */
			$r->view = $this->input->getWord('view', 'setup');
			$this->sendJsonResponse($r);
		}

// Store the options in the session.
		$model->storeOptions($return);

// Setup language
		Factory::$language = Language::getInstance($return['language']);

// Redirect to the page.
		$r->view = $this->input->getWord('view', 'setup');

$this->sendJsonResponse($r);
	}

/**
	 * Sets the default language.
	 *
	 * @return  void
	 *
	 * @since   4.0.0
	 */
	public function setdefault()
	{
		$this->checkValidToken();

$app = $this->app;

/** @var \Joomla\CMS\Installation\Model\LanguagesModel $model */
		$model = $this->getModel('Languages');

// Check for request forgeries in the administrator language
		$admin_lang = $this->input->getString('administratorlang', false);

// Check that the string is an ISO Language Code avoiding any injection.
		if (!preg_match('/^[a-z]{2}(\-[A-Z]{2})?$/', $admin_lang))
		{
			$admin_lang = 'en-GB';
		}

// Attempt to set the default administrator language
		if (!$model->setDefault($admin_lang, 'administrator'))
		{
			// Create an error response message.
			$this->app->enqueueMessage(Text::_('INSTL_DEFAULTLANGUAGE_ADMIN_COULDNT_SET_DEFAULT'), 'error');
		}
		else
		{
			// Create a response body.
			$app->enqueueMessage(Text::sprintf('INSTL_DEFAULTLANGUAGE_ADMIN_SET_DEFAULT', $admin_lang), 'message');
		}

// Check for request forgeries in the site language
		$frontend_lang = $this->input->getString('frontendlang', false);

// Check that the string is an ISO Language Code avoiding any injection.
		if (!preg_match('/^[a-z]{2}(\-[A-Z]{2})?$/', $frontend_lang))
		{
			$frontend_lang = 'en-GB';
		}

// Attempt to set the default site language
		if (!$model->setDefault($frontend_lang, 'site'))
		{
			// Create an error response message.
			$app->enqueueMessage(Text::_('INSTL_DEFAULTLANGUAGE_FRONTEND_COULDNT_SET_DEFAULT'), 'error');
		}
		else
		{
			// Create a response body.
			$app->enqueueMessage(Text::sprintf('INSTL_DEFAULTLANGUAGE_FRONTEND_SET_DEFAULT', $frontend_lang), 'message');
		}

$r = new \stdClass;

// Redirect to the final page.
		$r->view = 'remove';
		$this->sendJsonResponse($r);
	}
}