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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCA\Files_Versions\Sabre;
use OC\AppFramework\Http\Request;
use OCA\DAV\Connector\Sabre\FilesPlugin;
use OCP\IPreview;
use OCP\IRequest;
use Sabre\DAV\Exception\NotFound;
use Sabre\DAV\INode;
use Sabre\DAV\PropFind;
use Sabre\DAV\PropPatch;
use Sabre\DAV\Server;
use Sabre\DAV\ServerPlugin;
use Sabre\HTTP\RequestInterface;
use Sabre\HTTP\ResponseInterface;
class Plugin extends ServerPlugin {
private Server $server;
public const VERSION_LABEL = '{http://nextcloud.org/ns}version-label';
public const VERSION_AUTHOR = '{http://nextcloud.org/ns}version-author'; // dav property for author
public function __construct(
private IRequest $request,
private IPreview $previewManager,
) {
$this->request = $request;
}
public function initialize(Server $server) {
$this->server = $server;
$server->on('afterMethod:GET', [$this, 'afterGet']);
$server->on('propFind', [$this, 'propFind']);
$server->on('propPatch', [$this, 'propPatch']);
}
public function afterGet(RequestInterface $request, ResponseInterface $response) {
$path = $request->getPath();
if (!str_starts_with($path, 'versions')) {
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) . '"');
}
}
public function propFind(PropFind $propFind, INode $node): void {
if ($node instanceof VersionFile) {
$propFind->handle(self::VERSION_LABEL, fn () => $node->getMetadataValue('label'));
$propFind->handle(self::VERSION_AUTHOR, fn () => $node->getMetadataValue('author'));
$propFind->handle(FilesPlugin::HAS_PREVIEW_PROPERTYNAME, fn () => $this->previewManager->isMimeSupported($node->getContentType()));
}
}
public function propPatch($path, PropPatch $propPatch): void {
$node = $this->server->tree->getNodeForPath($path);
if ($node instanceof VersionFile) {
$propPatch->handle(self::VERSION_LABEL, fn (string $label) => $node->setMetadataValue('label', $label));
}
}
}
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