wamo/gnu-social
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[PLUGINS][Reply] Redirect back to previous URL on note reply. Move controller to own class

Browse Source 
This should be safe against open redirects, as it doesn't allow redirecting to other domains
This commit is contained in:
Hugo Sales 2021-09-05 18:25:53 +01:00
parent 0a7fd9c460
commit 16cde6dfd7
No known key found for this signature in database
GPG Key ID: 7D0C7EAFC9D835A0
3 changed files with 108 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

100
plugins/Reply/Controller/Reply.php Normal file
View File

@ -0,0 +1,100 @@
<?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/>.
// }}}
/**
* @author Hugo Sales <hugo@hsal.es>
* @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
namespace Plugin\Reply\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\InvalidFormException;
use App\Util\Exception\RedirectException;
use Component\Posting\Posting;
use Symfony\Component\Form\Extension\Core\Type\FileType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\HttpFoundation\Request;
class Reply extends Controller
{
/**
* Controller for the note reply non-JS page
*/
public function handle(Request $request, string $reply_to)
{
$user = Common::ensureLoggedIn();
$actor_id = $user->getId();
$note = DB::find('note', ['id' => (int) $reply_to]);
if ($note === null || !$note->isVisibleTo($user)) {
throw new NoSuchNoteException();
}
$form = Form::create([
['content', TextareaType::class, ['label' => ' ']],
['attachments', FileType::class, ['label' => ' ', 'multiple' => true, 'required' => false]],
['replyform', SubmitType::class, ['label' => _m('Submit')]],
]);
$form->handleRequest($request);
if ($form->isSubmitted()) {
$data = $form->getData();
if ($form->isValid()) {
Posting::storeNote(
$actor_id,
$data['content'],
$data['attachments'],
$is_local = true,
$reply_to,
$repeat_of = null
);
$return = $this->string('return_to');
if (!is_null($return)) {
// Prevent open redirect
if (Router::isAbsolute($return)) {
Log::warning("Actor {$actor_id} attempted to reply to a note and then get redirected to another host, or the URL was invalid ({$return})");
throw new ClientException(_m('Can not redirect to outside the website from here'), 400); // 400 Bad request (deceptive)
} else {
throw new RedirectException(url: $return);
}
} else {
throw new RedirectException('root'); // If we don't have a URL to return to, go to the instance root
}
} else {
throw new InvalidFormException();
}
}
return [
'_template' => 'note/reply.html.twig',
'note' => $note,
'reply' => $form->createView(),
];
}
}

59
plugins/Reply/Reply.php
View File

@ -21,27 +21,22 @@
namespace Plugin\Reply;
use App\Core\DB\DB;
use App\Core\Event;
use App\Core\Form;
use function App\Core\I18n\_m;
use App\Core\Modules\NoteHandlerPlugin;
use App\Entity\Note;
use App\Util\Common;
use App\Util\Exception\InvalidFormException;
use App\Util\Exception\RedirectException;
use Component\Posting\Posting;
use Symfony\Component\Form\Extension\Core\Type\FileType;
use Plugin\Reply\Controller\Reply as ReplyController;
use Symfony\Component\Form\Extension\Core\Type\HiddenType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\HttpFoundation\Request;
class Reply extends NoteHandlerPlugin
{
public function onAddRoute($r)
{
$r->connect('note_reply', '/note/reply/{reply_to<\\d*>}', [self::class, 'replyController']);
$r->connect('note_reply', '/note/reply/{reply_to<\\d*>}', ReplyController::class);
return Event::next;
}
@ -49,6 +44,7 @@ class Reply extends NoteHandlerPlugin
/**
* HTML rendering event that adds the reply form as a note action,
* if a user is logged in
*
* @throws RedirectException
*/
public function onAddNoteActions(Request $request, Note $note, array &$actions)
@ -61,7 +57,7 @@ class Reply extends NoteHandlerPlugin
['content', HiddenType::class, ['label' => ' ', 'required' => false]],
['attachments', HiddenType::class, ['label' => ' ', 'required' => false]],
['note_id', HiddenType::class, ['data' => $note->getId()]],
['reply', SubmitType::class,
['reply', SubmitType::class,
[
'label' => ' ',
'attr' => [
@ -72,7 +68,7 @@ class Reply extends NoteHandlerPlugin
]);
// Handle form
$ret = self::noteActionHandle($request, $form, $note, 'reply', function ($note, $data, $user) {
$ret = self::noteActionHandle($request, $form, $note, 'reply', function ($note, $data, $user) use ($request) {
if ($data['content'] !== null) {
// JS submitted
// TODO Implement in JS
@ -87,7 +83,7 @@ class Reply extends NoteHandlerPlugin
);
} else {
// JS disabled, redirect
throw new RedirectException('note_reply', ['reply_to' => $note->getId()]);
throw new RedirectException('note_reply', ['reply_to' => $note->getId(), 'return_to' => $request->getRequestUri()]);
return Event::stop;
}
@ -99,47 +95,4 @@ class Reply extends NoteHandlerPlugin
$actions[] = $form->createView();
return Event::next;
}
/**
* Controller for the note reply non-JS page
*/
public function replyController(Request $request, string $reply_to)
{
$user = Common::ensureLoggedIn();
$actor_id = $user->getId();
$note = DB::find('note', ['id' => (int) $reply_to]);
if ($note === null || !$note->isVisibleTo($user)) {
throw new NoSuchNoteException();
}
$form = Form::create([
['content', TextareaType::class, ['label' => ' ']],
['attachments', FileType::class, ['label' => ' ', 'multiple' => true, 'required' => false]],
['replyform', SubmitType::class, ['label' => _m('Submit')]],
]);
$form->handleRequest($request);
if ($form->isSubmitted()) {
$data = $form->getData();
if ($form->isValid()) {
Posting::storeNote(
$actor_id,
$data['content'],
$data['attachments'],
$is_local = true,
$reply_to,
$repeat_of = null
);
} else {
throw new InvalidFormException();
}
}
return [
'_template' => 'note/reply.html.twig',
'note' => $note,
'reply' => $form->createView(),
];
}
}

6
src/Util/Exception/RedirectException.php
View File

@ -27,11 +27,9 @@ class RedirectException extends Exception
{
public ?RedirectResponse $redirect_response = null;
public function __construct(string $url_id = '', array $args = [], $message = '', $code = 302, Exception $previous_exception = null)
public function __construct(string $url_id = '', array $args = [], $message = '', $code = 302, ?string $url = null, ?Exception $previous_exception = null)
{
if (!empty($url_id)) {
$this->redirect_response = new RedirectResponse(Router::url($url_id, $args));
}
$this->redirect_response = new RedirectResponse($url ?? Router::url($url_id, $args));
parent::__construct($message, $code, $previous_exception);
}
}