nextcloud/lib/private/Security/Bruteforce/Capabilities.php

<?php
/**
 * @copyright Copyright (c) 2017 Roeland Jago Douma <roeland@famdouma.nl>
 *
 * @author Julius Härtl <jus@bitgrid.net>
 * @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 OC\Security\Bruteforce;

use OCP\Capabilities\IPublicCapability;
use OCP\IRequest;

class Capabilities implements IPublicCapability {
	/** @var IRequest */
	private $request;

	/** @var Throttler */
	private $throttler;

	/**
	 * Capabilities constructor.
	 *
	 * @param IRequest $request
	 * @param Throttler $throttler
	 */
	public function __construct(IRequest $request,
								Throttler $throttler) {
		$this->request = $request;
		$this->throttler = $throttler;
	}

	public function getCapabilities() {
		if (version_compare(\OC::$server->getConfig()->getSystemValue('version', '0.0.0.0'), '12.0.0.0', '<')) {
			return [];
		}

		return [
			'bruteforce' => [
				'delay' => $this->throttler->getDelay($this->request->getRemoteAddress())
			]
		];
	}
}