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<?php
/**
* @author Joas Schilling <nickvergessen@owncloud.com>
*
* @copyright Copyright (c) 2016, ownCloud, Inc.
* @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\Testing\Locking;
use OC\Lock\DBLockingProvider;
use OC\Lock\MemcacheLockingProvider;
use OC\User\NoUserException;
use OCP\AppFramework\Http;
use OCP\Files\NotFoundException;
use OCP\IConfig;
use OCP\IDBConnection;
use OCP\IRequest;
use OCP\Lock\ILockingProvider;
use OCP\Lock\LockedException;
class Provisioning {
/** @var ILockingProvider */
protected $lockingProvider;
/** @var IDBConnection */
protected $connection;
/** @var IConfig */
protected $config;
/** @var IRequest */
protected $request;
/**
* @param ILockingProvider $lockingProvider
* @param IDBConnection $connection
* @param IConfig $config
* @param IRequest $request
*/
public function __construct(ILockingProvider $lockingProvider, IDBConnection $connection, IConfig $config, IRequest $request) {
$this->lockingProvider = $lockingProvider;
$this->connection = $connection;
$this->config = $config;
$this->request = $request;
}
/**
* @return ILockingProvider
*/
protected function getLockingProvider() {
if ($this->lockingProvider instanceof DBLockingProvider) {
return \OC::$server->query('OCA\Testing\Locking\FakeDBLockingProvider');
} else {
throw new \RuntimeException('Lock provisioning is only possible using the DBLockingProvider');
}
}
/**
* @param array $parameters
* @return int
*/
protected function getType($parameters) {
return isset($parameters['type']) ? (int) $parameters['type'] : 0;
}
/**
* @param array $parameters
* @return int
*/
protected function getPath($parameters) {
$node = \OC::$server->getRootFolder()
->getUserFolder($parameters['user'])
->get($this->request->getParam('path'));
return 'files/' . md5($node->getStorage()->getId() . '::' . trim($node->getInternalPath(), '/'));
}
/**
* @return \OC_OCS_Result
*/
public function isLockingEnabled() {
try {
$this->getLockingProvider();
return new \OC_OCS_Result(null, 100);
} catch (\RuntimeException $e) {
return new \OC_OCS_Result(null, Http::STATUS_NOT_IMPLEMENTED, $e->getMessage());
}
}
/**
* @param array $parameters
* @return \OC_OCS_Result
*/
public function acquireLock(array $parameters) {
try {
$path = $this->getPath($parameters);
} catch (NoUserException $e) {
return new \OC_OCS_Result(null, Http::STATUS_NOT_FOUND, 'User not found');
} catch (NotFoundException $e) {
return new \OC_OCS_Result(null, Http::STATUS_NOT_FOUND, 'Path not found');
}
$type = $this->getType($parameters);
$lockingProvider = $this->getLockingProvider();
try {
$lockingProvider->acquireLock($path, $type);
$this->config->setAppValue('testing', 'locking_' . $path, $type);
return new \OC_OCS_Result(null, 100);
} catch (LockedException $e) {
return new \OC_OCS_Result(null, Http::STATUS_LOCKED);
}
}
/**
* @param array $parameters
* @return \OC_OCS_Result
*/
public function changeLock(array $parameters) {
try {
$path = $this->getPath($parameters);
} catch (NoUserException $e) {
return new \OC_OCS_Result(null, Http::STATUS_NOT_FOUND, 'User not found');
} catch (NotFoundException $e) {
return new \OC_OCS_Result(null, Http::STATUS_NOT_FOUND, 'Path not found');
}
$type = $this->getType($parameters);
$lockingProvider = $this->getLockingProvider();
try {
$lockingProvider->changeLock($path, $type);
$this->config->setAppValue('testing', 'locking_' . $path, $type);
return new \OC_OCS_Result(null, 100);
} catch (LockedException $e) {
return new \OC_OCS_Result(null, Http::STATUS_LOCKED);
}
}
/**
* @param array $parameters
* @return \OC_OCS_Result
*/
public function releaseLock(array $parameters) {
try {
$path = $this->getPath($parameters);
} catch (NoUserException $e) {
return new \OC_OCS_Result(null, Http::STATUS_NOT_FOUND, 'User not found');
} catch (NotFoundException $e) {
return new \OC_OCS_Result(null, Http::STATUS_NOT_FOUND, 'Path not found');
}
$type = $this->getType($parameters);
$lockingProvider = $this->getLockingProvider();
try {
$lockingProvider->releaseLock($path, $type);
$this->config->deleteAppValue('testing', 'locking_' . $path);
return new \OC_OCS_Result(null, 100);
} catch (LockedException $e) {
return new \OC_OCS_Result(null, Http::STATUS_LOCKED);
}
}
/**
* @param array $parameters
* @return \OC_OCS_Result
*/
public function isLocked(array $parameters) {
try {
$path = $this->getPath($parameters);
} catch (NoUserException $e) {
return new \OC_OCS_Result(null, Http::STATUS_NOT_FOUND, 'User not found');
} catch (NotFoundException $e) {
return new \OC_OCS_Result(null, Http::STATUS_NOT_FOUND, 'Path not found');
}
$type = $this->getType($parameters);
$lockingProvider = $this->getLockingProvider();
if ($lockingProvider->isLocked($path, $type)) {
return new \OC_OCS_Result(null, 100);
}
return new \OC_OCS_Result(null, Http::STATUS_LOCKED);
}
/**
* @param array $parameters
* @return \OC_OCS_Result
*/
public function releaseAll(array $parameters) {
$type = $this->getType($parameters);
$lockingProvider = $this->getLockingProvider();
foreach ($this->config->getAppKeys('testing') as $lock) {
if (strpos($lock, 'locking_') === 0) {
$path = substr($lock, strlen('locking_'));
if ($type === ILockingProvider::LOCK_EXCLUSIVE && $this->config->getAppValue('testing', $lock) == ILockingProvider::LOCK_EXCLUSIVE) {
$lockingProvider->releaseLock($path, $this->config->getAppValue('testing', $lock));
} else if ($type === ILockingProvider::LOCK_SHARED && $this->config->getAppValue('testing', $lock) == ILockingProvider::LOCK_SHARED) {
$lockingProvider->releaseLock($path, $this->config->getAppValue('testing', $lock));
} else {
$lockingProvider->releaseLock($path, $this->config->getAppValue('testing', $lock));
}
}
}
return new \OC_OCS_Result(null, 100);
}
}
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