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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Bjoern Schiessle <bjoern@schiessle.org>
* @author Björn Schießle <bjoern@schiessle.org>
* @author Clark Tomlinson <fallen013@gmail.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Phil Davis <phil.davis@inf.org>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\Encryption;
use OC\Files\View;
use OCA\Encryption\Crypto\Crypt;
use OCP\IConfig;
use OCP\ILogger;
use OCP\IUser;
use OCP\IUserManager;
use OCP\IUserSession;
use OCP\PreConditionNotMetException;
class Util {
/**
* @var View
*/
private $files;
/**
* @var Crypt
*/
private $crypt;
/**
* @var ILogger
*/
private $logger;
/**
* @var bool|IUser
*/
private $user;
/**
* @var IConfig
*/
private $config;
/**
* @var IUserManager
*/
private $userManager;
/**
* Util constructor.
*
* @param View $files
* @param Crypt $crypt
* @param ILogger $logger
* @param IUserSession $userSession
* @param IConfig $config
* @param IUserManager $userManager
*/
public function __construct(View $files,
Crypt $crypt,
ILogger $logger,
IUserSession $userSession,
IConfig $config,
IUserManager $userManager
) {
$this->files = $files;
$this->crypt = $crypt;
$this->logger = $logger;
$this->user = $userSession && $userSession->isLoggedIn() ? $userSession->getUser() : false;
$this->config = $config;
$this->userManager = $userManager;
}
/**
* check if recovery key is enabled for user
*
* @param string $uid
* @return bool
*/
public function isRecoveryEnabledForUser($uid) {
$recoveryMode = $this->config->getUserValue($uid,
'encryption',
'recoveryEnabled',
'0');
return ($recoveryMode === '1');
}
/**
* check if the home storage should be encrypted
*
* @return bool
*/
public function shouldEncryptHomeStorage() {
$encryptHomeStorage = $this->config->getAppValue(
'encryption',
'encryptHomeStorage',
'1'
);
return ($encryptHomeStorage === '1');
}
/**
* set the home storage encryption on/off
*
* @param bool $encryptHomeStorage
*/
public function setEncryptHomeStorage($encryptHomeStorage) {
$value = $encryptHomeStorage ? '1' : '0';
$this->config->setAppValue(
'encryption',
'encryptHomeStorage',
$value
);
}
/**
* check if master key is enabled
*
* @return bool
*/
public function isMasterKeyEnabled() {
$userMasterKey = $this->config->getAppValue('encryption', 'useMasterKey', '1');
return ($userMasterKey === '1');
}
/**
* @param $enabled
* @return bool
*/
public function setRecoveryForUser($enabled) {
$value = $enabled ? '1' : '0';
try {
$this->config->setUserValue($this->user->getUID(),
'encryption',
'recoveryEnabled',
$value);
return true;
} catch (PreConditionNotMetException $e) {
return false;
}
}
/**
* @param string $uid
* @return bool
*/
public function userHasFiles($uid) {
return $this->files->file_exists($uid . '/files');
}
/**
* get owner from give path, path relative to data/ expected
*
* @param string $path relative to data/
* @return string
* @throws \BadMethodCallException
*/
public function getOwner($path) {
$owner = '';
$parts = explode('/', $path, 3);
if (count($parts) > 1) {
$owner = $parts[1];
if ($this->userManager->userExists($owner) === false) {
throw new \BadMethodCallException('Unknown user: ' .
'method expects path to a user folder relative to the data folder');
}
}
return $owner;
}
/**
* get storage of path
*
* @param string $path
* @return \OC\Files\Storage\Storage
*/
public function getStorage($path) {
return $this->files->getMount($path)->getStorage();
}
}
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