nextcloud-server/apps/dav/lib/Profiler/ProfilerPlugin.php

<?php

declare(strict_types = 1);
/**
 * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OCA\DAV\Profiler;

use OCP\IRequest;
use Sabre\DAV\Server;
use Sabre\HTTP\RequestInterface;
use Sabre\HTTP\ResponseInterface;

class ProfilerPlugin extends \Sabre\DAV\ServerPlugin {
	private IRequest $request;

	public function __construct(IRequest $request) {
		$this->request = $request;
	}

	/** @return void */
	public function initialize(Server $server) {
		$server->on('afterMethod:*', [$this, 'afterMethod']);
	}

	/** @return void */
	public function afterMethod(RequestInterface $request, ResponseInterface $response) {
		$response->addHeader('X-Debug-Token', $this->request->getId());
	}
}