gnu-social/src/Core/Controller.php

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<?php
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
/**
* Base class for controllers
*
* @package GNUsocial
* @category Controller
*
* @author Hugo Sales <hugo@fc.up.pt>
* @copyright 2020 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
namespace App\Core;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Event\ControllerEvent;
use Symfony\Component\HttpKernel\Event\ViewEvent;
use Symfony\Component\HttpKernel\KernelEvents;
class Controller extends AbstractController implements EventSubscriberInterface
{
private array $vars = [];
public function __invoke(Request $request)
{
$class = get_called_class();
$method = 'on' . ucfirst(strtolower($request->getMethod()));
if (method_exists($class, $method)) {
return $class::$method($request, $this->vars);
} else {
return $class::handle($request, $this->vars);
}
}
public function onKernelController(ControllerEvent $event)
{
$controller = $event->getController();
$request = $event->getRequest();
$this->vars = ['controler' => $controller, 'request' => $request];
Event::handle('start_twig_populate_vars', [&$this->vars]);
$event->stopPropagation();
return $event;
}
public function onKernelView(ViewEvent $event)
{
$request = $event->getRequest();
$response = $event->getControllerResult();
if (!is_array($response)) {
return $event;
}
$this->vars = array_merge_recursive($this->vars, $response);
Event::handle('end_twig_populate_vars', [&$this->vars]);
$template = $this->vars['_template'];
unset($this->vars['_template'], $this->vars['request']);
// Respond in the the most preffered acceptable content type
$format = $request->getFormat($request->getAcceptableContentTypes()[0]);
switch ($format) {
case 'html':
$event->setResponse($this->render($template, $this->vars));
break;
case 'json':
$event->setResponse(new JsonResponse($this->vars));
// no break
default:
throw new BadRequestHttpException('Unsupported format', null, 406);
}
return $event;
}
public static function getSubscribedEvents()
{
return [
KernelEvents::CONTROLLER => 'onKernelController',
KernelEvents::VIEW => 'onKernelView',
];
}
}