gnu-social/plugins/DeleteNote/Controller/DeleteNote.php

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<?php
declare(strict_types = 1);
// {{{ 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/>.
// }}}
namespace Plugin\DeleteNote\Controller;
use App\Core\Controller;
use App\Core\DB\DB;
use App\Core\Form;
use function App\Core\I18n\_m;
use App\Core\Log;
use App\Core\Router\Router;
use App\Entity\Note;
use App\Util\Common;
use App\Util\Exception\ClientException;
use App\Util\Exception\NoLoggedInUser;
use App\Util\Exception\NoSuchNoteException;
use App\Util\Exception\RedirectException;
use App\Util\Exception\ServerException;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\HttpFoundation\Request;
class DeleteNote extends Controller
{
/**
* Create delete note view
*
* @throws ClientException
* @throws NoLoggedInUser
* @throws RedirectException
* @throws ServerException
*/
public function __invoke(Request $request)
{
$user = Common::ensureLoggedIn();
$note_id = (int) $request->get('note_id');
$note = Note::getByPK($note_id);
if (\is_null($note) || !$note->isVisibleTo($user)) {
throw new NoSuchNoteException();
}
$form_delete = Form::create([
['delete_note', SubmitType::class,
[
'label' => _m('Delete it'),
'attr' => [
'title' => _m('Press to delete this note'),
],
],
],
]);
$form_delete->handleRequest($request);
if ($form_delete->isSubmitted()) {
if (!\is_null(\Plugin\DeleteNote\DeleteNote::deleteNote(note: $note_id, actor: $user->getId()))) {
DB::flush();
} else {
throw new ClientException(_m('Note already deleted!'));
}
// Redirect user to where they came from
// Prevent open redirect
if (!\is_null($from = $this->string('from'))) {
if (Router::isAbsolute($from)) {
Log::warning("Actor {$user->getId()} attempted to delete to a note and then get redirected to another host, or the URL was invalid ({$from})");
throw new ClientException(_m('Can not redirect to outside the website from here'), 400); // 400 Bad request (deceptive)
} else {
// TODO anchor on element id
throw new RedirectException(url: $from);
}
} else {
// If we don't have a URL to return to, go to the instance root
throw new RedirectException('root');
}
}
return [
'_template' => 'delete_note/delete_note.html.twig',
'note' => $note,
'delete' => $form_delete->createView(),
];
}
}