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<?php
declare(strict_types=1);
/**
* Nextcloud - Backup now. Restore later.
*
* This file is licensed under the Affero General Public License version 3 or
* later. See the COPYING file.
*
* @author Maxence Lange <maxence@artificial-owl.com>
* @copyright 2021, Maxence Lange <maxence@artificial-owl.com>
* @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\Backup\Handlers;
use ArtificialOwl\MySmallPhpTools\Exceptions\SignatoryException;
use ArtificialOwl\MySmallPhpTools\Traits\TArrayTools;
use OC\URLGenerator;
use OCA\Backup\AppInfo\Application;
use OCA\Backup\Service\ConfigService;
use OCA\Backup\Service\RemoteStreamService;
use OCP\Http\WellKnown\IHandler;
use OCP\Http\WellKnown\IRequestContext;
use OCP\Http\WellKnown\IResponse;
use OCP\Http\WellKnown\JrdResponse;
use OCP\IURLGenerator;
/**
* Class WebfingerHandler
*
* @package OCA\Backup\Handlers
*/
class WebfingerHandler implements IHandler {
use TArrayTools;
/** @var URLGenerator */
private $urlGenerator;
/** @var RemoteStreamService */
private $remoteStreamService;
/** @var ConfigService */
private $configService;
/**
* WebfingerHandler constructor.
*
* @param IURLGenerator $urlGenerator
* @param RemoteStreamService $remoteStreamService
* @param ConfigService $configService
*/
public function __construct(
IURLGenerator $urlGenerator,
RemoteStreamService $remoteStreamService,
ConfigService $configService
) {
$this->urlGenerator = $urlGenerator;
$this->remoteStreamService = $remoteStreamService;
$this->configService = $configService;
}
/**
* @param string $service
* @param IRequestContext $context
* @param IResponse|null $response
*
* @return IResponse|null
*/
public function handle(string $service, IRequestContext $context, ?IResponse $response): ?IResponse {
if (!$this->configService->isRemoteEnabled() || $service !== 'webfinger') {
return $response;
}
$request = $context->getHttpRequest();
$subject = $request->getParam('resource', '');
if ($subject !== Application::APP_SUBJECT) {
return $response;
}
if (!($response instanceof JrdResponse)) {
$response = new JrdResponse($subject);
}
try {
$this->remoteStreamService->getAppSignatory();
$href = $this->urlGenerator->linkToRouteAbsolute('backup.Remote.appService');
$info = [
'app' => Application::APP_ID,
'name' => Application::APP_NAME,
'version' => $this->configService->getAppValue('installed_version')
];
} catch (SignatoryException $e) {
return $response;
}
return $response->addLink(Application::APP_REL, 'application/json', $href, [], $info);
}
}
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