gnu-social/src/Controller/Attachment.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/>.
// }}}
namespace App\Controller;
use App\Core\Controller;
use App\Core\DB\DB;
use App\Core\Event;
use App\Core\GSFile;
use App\Core\Router\Router;
use App\Entity\AttachmentThumbnail;
use App\Util\Common;
use App\Util\Exception\ClientException;
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use App\Util\Exception\NotFoundException;
use App\Util\Exception\ServerException;
use Symfony\Component\HttpFoundation\HeaderUtils;
use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpFoundation\Response;
use function App\Core\I18n\_m;
class Attachment extends Controller
{
private function attachment(int $id, callable $handle)
{
if (Event::handle('AttachmentFileInfo', [$id, &$res]) != Event::stop) {
// If no one else claims this attachment, use the default representation
$res = GSFile::getAttachmentFileInfo($id);
}
if (!empty($res)) {
return $handle($res);
} else {
throw new ClientException(_m('No such attachment'), 404);
}
}
/**
* The page where the attachment and it's info is shown
*/
public function attachment_show(Request $request, int $id)
{
try {
$attachment = DB::findOneBy('attachment', ['id' => $id]);
return $this->attachment($id, function ($res) use ($id, $attachment) {
return [
'_template' => 'attachments/show.html.twig',
'title' => $res['title'],
'download' => Router::url('attachment_download', ['id' => $id]),
'attachment' => $attachment,
'right_panel_vars' => ['attachment_id' => $id],
];
});
} catch (NotFoundException) {
throw new ClientException(_m('No such attachment'), 404);
}
}
/**
* Display the attachment inline
*/
public function attachment_view(Request $request, int $id)
{
return $this->attachment($id, fn (array $res) => GSFile::sendFile($res['filepath'], $res['mimetype'], $res['title'], HeaderUtils::DISPOSITION_INLINE));
}
public function attachment_download(Request $request, int $id)
{
return $this->attachment($id, fn (array $res) => GSFile::sendFile($res['filepath'], $res['mimetype'], $res['title'], HeaderUtils::DISPOSITION_ATTACHMENT));
}
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/**
* Controller to produce a thumbnail for a given attachment id
*
* @param Request $request
* @param int $id Attachment ID
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*
* @return Response
* @throws ClientException
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* @throws NotFoundException
* @throws ServerException
* @throws \App\Util\Exception\DuplicateFoundException
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*/
public function attachment_thumbnail(Request $request, int $id): Response
{
$attachment = DB::findOneBy('attachment', ['id' => $id]);
if (preg_match('/^(image|video)/', $attachment->getMimeType()) !== 1) {
throw new ClientException(_m('Can not generate thumbnail for attachment with id={id}', ['id' => $id]));
}
if (!is_null($attachment->getScope())) {
// && ($attachment->scope | VisibilityScope::PUBLIC) != 0
// $user = Common::ensureLoggedIn();
assert(false, 'Attachment scope not implemented');
}
$default_width = Common::config('thumbnail', 'width');
$default_height = Common::config('thumbnail', 'height');
$default_crop = Common::config('thumbnail', 'smart_crop');
$width = $this->int('w') ?: $default_width;
$height = $this->int('h') ?: $default_height;
$crop = $this->bool('c') ?: $default_crop;
Event::handle('GetAllowedThumbnailSizes', [&$sizes]);
if (!in_array(['width' => $width, 'height' => $height], $sizes)) {
throw new ClientException(_m('The requested thumbnail dimensions are not allowed'), 400); // 400 Bad Request
}
$thumbnail = AttachmentThumbnail::getOrCreate(attachment: $attachment, width: $width, height: $height, crop: $crop);
$filename = $thumbnail->getFilename();
$path = $thumbnail->getPath();
return GSFile::sendFile(filepath: $path, mimetype: $attachment->getMimetype(), output_filename: $filename, disposition: 'inline');
}
}