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<?php
/**
*
* (c) Copyright Ascensio System Limited 2010-2018
*
* This program is a free software product.
* You can redistribute it and/or modify it under the terms of the GNU Affero General Public License
* (AGPL) version 3 as published by the Free Software Foundation.
* In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* For details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at 17-2 Elijas street, Riga, Latvia, EU, LV-1021.
*
* The interactive user interfaces in modified source and object code versions of the Program
* must display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product logo when distributing the program.
* Pursuant to Section 7(e) we decline to grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as well as technical
* writing content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0 International.
* See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
namespace OCA\Onlyoffice;
use OCA\Onlyoffice\AppConfig;
/**
* Token generator
*
* @package OCA\Onlyoffice
*/
class Crypt {
/**
* The secret key from the application configuration
*
* @var string
*/
private $skey;
/**
* @param OCA\Onlyoffice\AppConfig $config - application configutarion
*/
public function __construct(AppConfig $appConfig) {
$this->skey = $appConfig->GetSKey();
}
/**
* Generate token for the object
*
* @param array $object - object to signature
*
* @return string
*/
public function GetHash($object) {
return \Firebase\JWT\JWT::encode($object, $this->skey);
}
/**
* Create an object from the token
*
* @param string $token - token
*
* @return array
*/
public function ReadHash($token) {
$result = NULL;
$error = NULL;
if ($token === NULL) {
return [$result, "token is empty"];
}
try {
$result = \Firebase\JWT\JWT::decode($token, $this->skey, array("HS256"));
} catch (\UnexpectedValueException $e) {
$error = $e->getMessage();
}
return [$result, $error];
}
}
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