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<?php
/**
* @copyright Copyright (c) 2019 Julius Härtl <jus@bitgrid.net>
*
* @author Julius Härtl <jus@bitgrid.net>
*
* @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\Text\Service;
use OC\Avatar\Avatar;
use OCA\Text\Db\Session;
use OCA\Text\Db\SessionMapper;
use OCP\AppFramework\Db\DoesNotExistException;
use OCP\AppFramework\Utility\ITimeFactory;
use OCP\IAvatar;
use OCP\IAvatarManager;
use OCP\Security\ISecureRandom;
class SessionService {
public const SESSION_VALID_TIME = 60*5;
private $sessionMapper;
private $secureRandom;
private $timeFactory;
private $userId;
public function __construct(SessionMapper $sessionMapper, ISecureRandom $secureRandom, ITimeFactory $timeFactory, $userId) {
$this->sessionMapper = $sessionMapper;
$this->secureRandom = $secureRandom;
$this->timeFactory = $timeFactory;
$this->userId = $userId ?? 'Guest';
}
public function initSession($documentId): Session {
$session = new Session();
$session->setDocumentId($documentId);
$session->setUserId($this->userId);
$session->setToken($this->secureRandom->generate(64));
/** @var IAvatarManager $avatarGenerator */
$avatarGenerator = \OC::$server->query(IAvatarManager::class);
$color = $avatarGenerator->getGuestAvatar($this->userId)->avatarBackgroundColor($this->userId);
$color = sprintf("#%02x%02x%02x", $color->r, $color->g, $color->b);
$session->setColor($color);
$session->setGuestName(null);
$session->setLastContact($this->timeFactory->getTime());
return $this->sessionMapper->insert($session);
}
public function closeSession(int $documentId, int $sessionId, string $token): void {
try {
$session = $this->sessionMapper->find($documentId, $sessionId, $token);
$this->sessionMapper->delete($session);
} catch (DoesNotExistException $e) {
}
}
public function getActiveSessions($documentId): array {
$sessions = $this->sessionMapper->findAllActive($documentId);
return array_map(function(Session $session) {
$result = $session->jsonSerialize();
$userManager = \OC::$server->getUserManager();
$user = $userManager->get($session->getUserId());
if ($user) {
$result['displayName'] = $user->getDisplayName();
}
return $result;
}, $sessions);
}
public function removeInactiveSessions($documentId) {
return $this->sessionMapper->deleteInactive($documentId);
}
public function isValidSession($documentId, $sessionId, $token) {
try {
$session = $this->sessionMapper->find($documentId, $sessionId, $token);
} catch (DoesNotExistException $e) {
return false;
}
// TODO: move to cache
$session->setLastContact($this->timeFactory->getTime());
$this->sessionMapper->update($session);
return true;
}
public function cleanupSession() {
// find expired sessions
// remove them
}
}
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