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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2024 Joas Schilling <coding@schilljs.com>
*
* @author Joas Schilling <coding@schilljs.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\Talk\Federation;
use OCA\FederatedFileSharing\AddressHandler;
use OCA\Federation\TrustedServers;
use OCA\Talk\Config;
use OCP\App\IAppManager;
use OCP\AppFramework\Services\IAppConfig;
use OCP\Federation\ICloudId;
use OCP\IUser;
use OCP\Server;
use Psr\Log\LoggerInterface;
class RestrictionValidator {
public function __construct(
private AddressHandler $addressHandler,
private IAppManager $appManager,
private Config $talkConfig,
private IAppConfig $appConfig,
private LoggerInterface $logger,
) {
}
/**
* Check if $sharedBy is allowed to invite $shareWith
*
* @throws \InvalidArgumentException
*/
public function isAllowedToInvite(
IUser $user,
ICloudId $cloudIdToInvite,
): void {
if (!($cloudIdToInvite->getUser() && $cloudIdToInvite->getRemote())) {
$this->logger->debug('Could not share conversation as the recipient is invalid: ' . $cloudIdToInvite->getId());
throw new \InvalidArgumentException('cloudId');
}
if (!$this->appConfig->getAppValueBool('federation_outgoing_enabled', true)) {
$this->logger->debug('Could not share conversation as outgoing federation is disabled');
throw new \InvalidArgumentException('outgoing');
}
if (!$this->talkConfig->isFederationEnabledForUserId($user)) {
$this->logger->debug('Talk federation not allowed for user ' . $user->getUID());
throw new \InvalidArgumentException('federation');
}
if ($this->appConfig->getAppValueBool('federation_only_trusted_servers')) {
if (!$this->appManager->isEnabledForUser('federation')) {
$this->logger->error('Federation is limited to trusted servers but the "federation" app is disabled');
throw new \InvalidArgumentException('trusted_servers');
}
$trustedServers = Server::get(TrustedServers::class);
$serverUrl = $this->addressHandler->removeProtocolFromUrl($cloudIdToInvite->getRemote());
if (!$trustedServers->isTrustedServer($serverUrl)) {
$this->logger->warning(
'Tried to send Talk federation invite to untrusted server {serverUrl}',
['serverUrl' => $serverUrl]
);
throw new \InvalidArgumentException('trusted_servers');
}
}
}
}
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