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 function App\Core\I18n\_m;
use App\Core\Log;
use App\Core\Router\Router;
use App\Entity\AttachmentThumbnail;
use App\Util\Common;
use App\Util\Exception\ClientException;
use App\Util\Exception\NoSuchFileException;
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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 Symfony\Component\Mime\MimeTypes;
class Attachment extends Controller
{
/**
* Generic function that handles getting a representation for an attachment
*/
private function attachment(int $id, callable $handle)
{
if ($id <= 0) { // This should never happen coming from the router, but let's bail if it does
// @codeCoverageIgnoreStart
Log::critical("Attachment controller called with {$id}, which should not be possible");
throw new ClientException(_m('No such attachment.'), 404);
// @codeCoverageIgnoreEnd
} else {
$res = null;
if (Event::handle('AttachmentFileInfo', [$id, &$res]) != Event::stop) {
// If no one else claims this attachment, use the default representation
try {
$res = GSFile::getAttachmentFileInfo($id);
} catch (NoSuchFileException $e) {
// Continue below
}
}
}
if (empty($res)) {
throw new ClientException(_m('No such attachment'), 404);
} else {
if (!array_key_exists('filepath', $res)) {
// @codeCoverageIgnoreStart
throw new ServerException('This attachment is not stored locally.');
// @codeCoverageIgnoreEnd
} else {
return $handle($res);
}
}
}
/**
* 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',
'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'], $res['mimetype'],
GSFile::ensureFilenameWithProperExtension($res['filename'], $res['mimetype']) ?? $res['filename'],
HeaderUtils::DISPOSITION_INLINE
)
);
}
public function attachment_download(Request $request, int $id)
{
return $this->attachment($id, fn (array $res) => GSFile::sendFile(
$res['filepath'], $res['mimetype'],
GSFile::ensureFilenameWithProperExtension($res['filename'], $res['mimetype']) ?? $res['filename'],
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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*
* @throws ClientException
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* @throws NotFoundException
* @throws ServerException
* @throws \App\Util\Exception\DuplicateFoundException
*
* @return Response
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*/
public function attachment_thumbnail(Request $request, int $id, string $size = 'small'): Response
{
$attachment = DB::findOneBy('attachment', ['id' => $id]);
$crop = Common::config('thumbnail', 'smart_crop');
$thumbnail = AttachmentThumbnail::getOrCreate(attachment: $attachment, size: $size, crop: $crop);
if (is_null($thumbnail)) {
throw new ClientException(_m('Can not generate thumbnail for attachment with id={id}', ['id' => $attachment->getId()]));
}
$filename = $thumbnail->getFilename();
$path = $thumbnail->getPath();
$mimetype = $thumbnail->getMimetype();
return GSFile::sendFile(filepath: $path, mimetype: $mimetype, output_filename: $filename . '.' . MimeTypes::getDefault()->getExtensions($mimetype)[0], disposition: HeaderUtils::DISPOSITION_INLINE);
}
}