2020-07-06 21:51:08 +01:00
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<?php
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2021-10-18 13:17:08 +01:00
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declare(strict_types = 1);
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2020-07-06 21:51:08 +01:00
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// {{{ License
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// GNU social is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
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// }}}
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/**
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* Base class for controllers
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*
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* @package GNUsocial
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* @category Controller
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*
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2021-02-19 23:29:43 +00:00
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* @author Hugo Sales <hugo@hsal.es>
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2021-10-18 13:17:08 +01:00
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* @author Diogo Peralta Cordeiro <@diogo.site>
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2021-02-19 23:29:43 +00:00
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* @copyright 2020-2021 Free Software Foundation, Inc http://www.fsf.org
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2020-07-06 21:51:08 +01:00
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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namespace App\Core;
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2021-08-08 01:35:27 +01:00
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use function App\Core\I18n\_m;
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2020-09-10 21:38:40 +01:00
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use App\Util\Common;
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2021-08-08 01:35:27 +01:00
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use App\Util\Exception\ClientException;
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2020-09-06 22:38:37 +01:00
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use App\Util\Exception\RedirectException;
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2021-11-17 00:49:23 +00:00
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use App\Util\Exception\ServerException;
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2021-12-23 13:27:31 +00:00
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use Component\Feed\Util\FeedController;
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2021-08-01 12:44:45 +01:00
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use Exception;
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2020-07-06 21:51:08 +01:00
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use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
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2020-07-23 18:55:06 +01:00
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use Symfony\Component\EventDispatcher\EventSubscriberInterface;
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2021-09-06 14:29:07 +01:00
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use Symfony\Component\HttpFoundation\JsonResponse;
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2020-09-06 22:38:37 +01:00
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use Symfony\Component\HttpFoundation\RedirectResponse;
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2020-07-06 21:51:08 +01:00
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use Symfony\Component\HttpFoundation\Request;
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2021-04-15 23:33:37 +01:00
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use Symfony\Component\HttpFoundation\RequestStack;
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2021-11-17 00:49:23 +00:00
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use Symfony\Component\HttpFoundation\Response;
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2020-07-23 18:55:06 +01:00
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use Symfony\Component\HttpKernel\Event\ControllerEvent;
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2020-09-06 22:38:37 +01:00
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use Symfony\Component\HttpKernel\Event\ExceptionEvent;
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2020-07-23 18:55:06 +01:00
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use Symfony\Component\HttpKernel\Event\ViewEvent;
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use Symfony\Component\HttpKernel\KernelEvents;
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2021-09-06 23:47:28 +01:00
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use Symfony\Component\Validator\Exception\ValidatorException;
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2020-07-06 21:51:08 +01:00
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2021-09-06 20:59:36 +01:00
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/**
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2021-10-18 13:17:08 +01:00
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* @method int int(string $param)
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* @method bool bool(string $param)
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2021-09-06 20:59:36 +01:00
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* @method string string(string $param)
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* @method string params(string $param)
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* @method mixed handle(Request $request, mixed ...$extra)
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2021-09-06 20:59:36 +01:00
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*/
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2021-09-27 10:36:48 +01:00
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abstract class Controller extends AbstractController implements EventSubscriberInterface
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2020-07-06 21:51:08 +01:00
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{
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2021-09-01 23:50:45 +01:00
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private array $vars = [];
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2021-08-24 05:30:54 +01:00
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protected ?Request $request = null;
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2021-04-15 23:33:37 +01:00
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public function __construct(RequestStack $requestStack)
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{
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$this->request = $requestStack->getCurrentRequest();
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}
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2020-07-23 18:55:06 +01:00
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2021-08-08 01:35:27 +01:00
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/**
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* TODO: Not currently used, so not tested, but should be
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*
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* @codeCoverageIgnore
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*/
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2020-07-06 21:51:08 +01:00
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public function __invoke(Request $request)
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{
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2021-04-15 23:33:37 +01:00
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$this->request = $request;
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2021-09-27 10:36:48 +01:00
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$class = static::class;
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2021-10-18 13:17:08 +01:00
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$method = 'on' . ucfirst(mb_strtolower($request->getMethod()));
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2021-09-27 10:36:48 +01:00
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$attributes = array_diff_key($request->attributes->get('_route_params'), array_flip(['_format', '_fragment', '_locale', 'template', 'accept', 'is_system_path']));
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2020-07-06 21:51:08 +01:00
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if (method_exists($class, $method)) {
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2021-09-27 10:36:48 +01:00
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return $this->{$method}($request, ...$attributes);
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2020-07-06 21:51:08 +01:00
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} else {
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2021-09-27 10:36:48 +01:00
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return $this->handle($request, ...$attributes);
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2020-07-23 18:55:06 +01:00
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}
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}
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2020-11-06 19:47:15 +00:00
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/**
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* Symfony event when it's searching for which controller to use
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*/
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2020-07-23 18:55:06 +01:00
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public function onKernelController(ControllerEvent $event)
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{
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$controller = $event->getController();
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$request = $event->getRequest();
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2021-04-15 23:33:37 +01:00
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$this->request = $request;
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2021-09-18 07:27:17 +01:00
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$this->vars = ['controller' => $controller, 'request' => $request];
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$user = Common::user();
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if ($user !== null) {
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$this->vars['current_actor'] = $user->getActor();
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}
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2020-07-23 18:55:06 +01:00
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2020-08-15 14:49:38 +01:00
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$event->stopPropagation();
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2020-07-23 18:55:06 +01:00
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return $event;
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}
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2020-11-06 19:47:15 +00:00
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/**
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* Symfony event when the controller result is not a Response object
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2021-11-17 00:49:23 +00:00
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*
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* @throws ClientException
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* @throws ServerException
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2020-11-06 19:47:15 +00:00
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*/
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2020-07-23 18:55:06 +01:00
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public function onKernelView(ViewEvent $event)
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{
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$request = $event->getRequest();
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$response = $event->getControllerResult();
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2021-10-18 13:17:08 +01:00
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if (!\is_array($response)) {
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2021-08-08 01:35:27 +01:00
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// This means it's not one of our custom format responses, nothing to do
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// @codeCoverageIgnoreStart
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2020-07-23 18:55:06 +01:00
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return $event;
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2021-08-08 01:35:27 +01:00
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// @codeCoverageIgnoreEnd
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2020-07-06 21:51:08 +01:00
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}
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2020-07-23 18:55:06 +01:00
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$this->vars = array_merge_recursive($this->vars, $response);
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2021-11-17 01:12:36 +00:00
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$template = $this->vars['_template'] ?? null;
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2021-10-28 14:29:34 +01:00
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Event::handle('OverrideTemplate', [$this->vars, &$template]); // Allow plugins to replace the template used for anything
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2021-09-18 07:27:17 +01:00
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unset($this->vars['_template'], $response['_template']);
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2020-07-06 21:51:08 +01:00
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2021-12-08 10:20:37 +00:00
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$controller = $request->get('_controller');
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if (\is_array($controller)) {
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$controller = $controller[0];
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}
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2021-12-23 13:27:31 +00:00
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// XXX: Could we do this differently?
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2021-12-08 10:20:37 +00:00
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if (is_subclass_of($controller, FeedController::class)) {
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$this->vars = FeedController::post_process($this->vars);
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}
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2021-08-24 05:30:54 +01:00
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// Respond in the most preferred acceptable content type
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2021-11-17 00:49:23 +00:00
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$route = $request->get('_route');
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2021-12-19 21:05:39 +00:00
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$accept = $request->getAcceptableContentTypes() ?: ['text/html']; // Assume html if not specified, */* is considered specified
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2021-11-17 00:49:23 +00:00
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$format = $request->getFormat($accept[0]);
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2021-09-06 14:29:07 +01:00
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$potential_response = null;
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if (Event::handle('ControllerResponseInFormat', [
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2021-10-28 18:05:28 +01:00
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'route' => $route,
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2021-09-06 14:29:07 +01:00
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'accept_header' => $accept,
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'vars' => $this->vars,
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'response' => &$potential_response,
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2021-09-14 17:15:37 +01:00
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]) !== Event::stop) {
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2021-09-06 14:29:07 +01:00
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switch ($format) {
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case 'json':
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$event->setResponse(new JsonResponse($response));
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break;
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2021-12-19 21:05:39 +00:00
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default: // html (assume if not specified)
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2021-10-18 13:17:08 +01:00
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if ($template !== null) {
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$event->setResponse($this->render($template, $this->vars));
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2021-11-17 00:49:23 +00:00
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2021-11-23 22:54:49 +00:00
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/* // Setting the Content-Security-Policy response header
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$policy = "default-src 'self';"
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. "script-src 'strict-dynamic' https: http:;"
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. "object-src 'none'; base-uri 'none'";
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$potential_response = $event->getResponse();
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$potential_response->headers->set('Content-Security-Policy', $policy);
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$potential_response->headers->set('X-Content-Security-Policy', $policy);
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$potential_response->headers->set('X-WebKit-CSP', $policy);*/
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2021-11-17 00:49:23 +00:00
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2021-10-18 13:17:08 +01:00
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break;
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} else {
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2021-12-19 21:05:39 +00:00
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throw new ClientException(_m('Unsupported format: {format}', ['format' => $format]), 406); // 406 Not Acceptable
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2021-10-18 13:17:08 +01:00
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}
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2021-08-24 05:30:54 +01:00
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}
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2021-09-06 14:29:07 +01:00
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} else {
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2021-10-28 18:05:28 +01:00
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if (\is_null($potential_response)) {
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// TODO BugFoundException
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Log::critical($m = "ControllerResponseInFormat for route '{$route}' returned Event::stop but didn't provide a response");
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throw new ServerException(_m($m, ['route' => $route]));
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}
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2021-09-06 14:29:07 +01:00
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$event->setResponse($potential_response);
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2020-07-06 21:51:08 +01:00
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}
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2020-07-23 18:55:06 +01:00
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2021-08-22 13:11:46 +01:00
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Event::handle('CleanupModule');
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2020-07-23 18:55:06 +01:00
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return $event;
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}
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2020-11-06 19:47:15 +00:00
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/**
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* Symfony event when the controller throws an exception
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2021-08-08 01:35:27 +01:00
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*
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* @codeCoverageIgnore
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2020-11-06 19:47:15 +00:00
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*/
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2020-09-06 22:38:37 +01:00
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public function onKernelException(ExceptionEvent $event)
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{
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2020-09-10 21:38:40 +01:00
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$except = $event->getThrowable();
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2021-08-03 18:48:17 +01:00
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if ($_ENV['APP_ENV'] !== 'dev') {
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// TODO: This is where our custom exception pages could go
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// $event->setResponse((new Response())->setStatusCode(455));
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}
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2020-09-10 21:38:40 +01:00
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do {
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if ($except instanceof RedirectException) {
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if (($redir = $except->redirect_response) != null) {
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$event->setResponse($redir);
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} else {
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$event->setResponse(new RedirectResponse($event->getRequest()->getPathInfo()));
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}
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2020-09-06 22:38:37 +01:00
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}
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2020-09-10 21:38:40 +01:00
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} while ($except != null && ($except = $except->getPrevious()) != null);
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2021-08-22 13:11:46 +01:00
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Event::handle('CleanupModule');
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2020-09-06 22:38:37 +01:00
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return $event;
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}
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2021-08-08 01:35:27 +01:00
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/**
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* @codeCoverageIgnore
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*/
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2020-07-23 18:55:06 +01:00
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public static function getSubscribedEvents()
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{
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return [
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KernelEvents::CONTROLLER => 'onKernelController',
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2020-09-06 22:38:37 +01:00
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KernelEvents::EXCEPTION => 'onKernelException',
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2020-07-23 18:55:06 +01:00
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KernelEvents::VIEW => 'onKernelView',
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];
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2020-07-06 21:51:08 +01:00
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}
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2021-04-15 23:33:37 +01:00
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/**
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2021-09-05 19:41:06 +01:00
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* Get and convert GET parameters. Can be called with `int`, `bool`, `string`, etc
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2021-04-15 23:33:37 +01:00
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*
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2021-09-05 19:41:06 +01:00
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* @throws Exception
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2021-10-18 13:17:08 +01:00
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* @throws ValidatorException
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2021-09-05 19:41:06 +01:00
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*
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2021-10-18 13:17:08 +01:00
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* @return null|array|bool|int|string the value or null if no parameter exists
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2021-04-15 23:33:37 +01:00
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*/
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2021-10-18 13:17:08 +01:00
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public function __call(string $method, array $args): array|bool|int|string|null
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2021-04-15 23:33:37 +01:00
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{
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switch ($method) {
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case 'int':
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2021-10-18 13:17:08 +01:00
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return $this->request->query->getInt($args[0]);
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2021-04-15 23:33:37 +01:00
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case 'bool':
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2021-10-18 13:17:08 +01:00
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return $this->request->query->getBoolean($args[0]);
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2021-09-05 19:41:06 +01:00
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case 'string':
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2021-10-18 13:17:08 +01:00
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return $this->request->query->get($args[0]);
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case 'params':
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return $this->request->query->all();
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2021-04-15 23:33:37 +01:00
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default:
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2021-08-08 01:35:27 +01:00
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// @codeCoverageIgnoreStart
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2021-04-15 23:33:37 +01:00
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Log::critical($m = "Method '{$method}' on class App\\Core\\Controller not found (__call)");
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2021-08-01 12:44:45 +01:00
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throw new Exception($m);
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2021-08-08 01:35:27 +01:00
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// @codeCoverageIgnoreEnd
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2021-04-15 23:33:37 +01:00
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}
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}
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2020-07-06 21:51:08 +01:00
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}
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