nextcloud/apps/files_versions/lib/Sabre/Plugin.php

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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2019, Roeland Jago Douma <roeland@famdouma.nl>
*
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Files_Versions\Sabre;
use OC\AppFramework\Http\Request;
use OCP\IRequest;
use Sabre\DAV\Exception\NotFound;
use Sabre\DAV\Server;
use Sabre\DAV\ServerPlugin;
use Sabre\HTTP\RequestInterface;
use Sabre\HTTP\ResponseInterface;
class Plugin extends ServerPlugin {
/** @var Server */
private $server;
/** @var IRequest */
private $request;
function __construct(IRequest $request) {
$this->request = $request;
}
function initialize(Server $server) {
$this->server = $server;
$server->on('afterMethod:GET', [$this, 'afterGet']);
}
public function afterGet(RequestInterface $request, ResponseInterface $response) {
$path = $request->getPath();
if (strpos($path, 'versions') !== 0) {
return;
}
try {
$node = $this->server->tree->getNodeForPath($path);
} catch (NotFound $e) {
return;
}
if (!($node instanceof VersionFile)) {
return;
}
$filename = $node->getVersion()->getSourceFileName();
if ($this->request->isUserAgent(
[
Request::USER_AGENT_IE,
Request::USER_AGENT_ANDROID_MOBILE_CHROME,
Request::USER_AGENT_FREEBOX,
])) {
$response->addHeader('Content-Disposition', 'attachment; filename="' . rawurlencode($filename) . '"');
} else {
$response->addHeader('Content-Disposition', 'attachment; filename*=UTF-8\'\'' . rawurlencode($filename)
. '; filename="' . rawurlencode($filename) . '"');
}
}
}