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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
* @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\Controller;
use OC\Lock\DBLockingProvider;
use OC\User\NoUserException;
use OCA\Testing\Locking\FakeDBLockingProvider;
use OCP\AppFramework\Http;
use OCP\AppFramework\Http\DataResponse;
use OCP\AppFramework\OCS\OCSException;
use OCP\AppFramework\OCSController;
use OCP\Files\IRootFolder;
use OCP\Files\NotFoundException;
use OCP\IConfig;
use OCP\IDBConnection;
use OCP\IRequest;
use OCP\Lock\ILockingProvider;
use OCP\Lock\LockedException;
class LockingController extends OCSController {
/** @var ILockingProvider */
protected $lockingProvider;
/** @var FakeDBLockingProvider */
protected $fakeDBLockingProvider;
/** @var IDBConnection */
protected $connection;
/** @var IConfig */
protected $config;
/** @var IRootFolder */
protected $rootFolder;
/**
* @param string $appName
* @param IRequest $request
* @param ILockingProvider $lockingProvider
* @param FakeDBLockingProvider $fakeDBLockingProvider
* @param IDBConnection $connection
* @param IConfig $config
* @param IRootFolder $rootFolder
*/
public function __construct($appName,
IRequest $request,
ILockingProvider $lockingProvider,
FakeDBLockingProvider $fakeDBLockingProvider,
IDBConnection $connection,
IConfig $config,
IRootFolder $rootFolder) {
parent::__construct($appName, $request);
$this->lockingProvider = $lockingProvider;
$this->fakeDBLockingProvider = $fakeDBLockingProvider;
$this->connection = $connection;
$this->config = $config;
$this->rootFolder = $rootFolder;
}
/**
* @throws \RuntimeException
*/
protected function getLockingProvider(): ILockingProvider {
if ($this->lockingProvider instanceof DBLockingProvider) {
return $this->fakeDBLockingProvider;
}
throw new \RuntimeException('Lock provisioning is only possible using the DBLockingProvider');
}
/**
* @throws NotFoundException
*/
protected function getPath(string $user, string $path): string {
$node = $this->rootFolder->getUserFolder($user)->get($path);
return 'files/' . md5($node->getStorage()->getId() . '::' . trim($node->getInternalPath(), '/'));
}
/**
* @throws OCSException
*/
public function isLockingEnabled(): DataResponse {
try {
$this->getLockingProvider();
return new DataResponse();
} catch (\RuntimeException $e) {
throw new OCSException($e->getMessage(), Http::STATUS_NOT_IMPLEMENTED, $e);
}
}
/**
* @throws OCSException
*/
public function acquireLock(int $type, string $user, string $path): DataResponse {
try {
$path = $this->getPath($user, $path);
} catch (NoUserException $e) {
throw new OCSException('User not found', Http::STATUS_NOT_FOUND, $e);
} catch (NotFoundException $e) {
throw new OCSException('Path not found', Http::STATUS_NOT_FOUND, $e);
}
$lockingProvider = $this->getLockingProvider();
try {
$lockingProvider->acquireLock($path, $type);
$this->config->setAppValue('testing', 'locking_' . $path, (string)$type);
return new DataResponse();
} catch (LockedException $e) {
throw new OCSException('', Http::STATUS_LOCKED, $e);
}
}
/**
* @throws OCSException
*/
public function changeLock(int $type, string $user, string $path): DataResponse {
try {
$path = $this->getPath($user, $path);
} catch (NoUserException $e) {
throw new OCSException('User not found', Http::STATUS_NOT_FOUND, $e);
} catch (NotFoundException $e) {
throw new OCSException('Path not found', Http::STATUS_NOT_FOUND, $e);
}
$lockingProvider = $this->getLockingProvider();
try {
$lockingProvider->changeLock($path, $type);
$this->config->setAppValue('testing', 'locking_' . $path, (string)$type);
return new DataResponse();
} catch (LockedException $e) {
throw new OCSException('', Http::STATUS_LOCKED, $e);
}
}
/**
* @throws OCSException
*/
public function releaseLock(int $type, string $user, string $path): DataResponse {
try {
$path = $this->getPath($user, $path);
} catch (NoUserException $e) {
throw new OCSException('User not found', Http::STATUS_NOT_FOUND, $e);
} catch (NotFoundException $e) {
throw new OCSException('Path not found', Http::STATUS_NOT_FOUND, $e);
}
$lockingProvider = $this->getLockingProvider();
try {
$lockingProvider->releaseLock($path, $type);
$this->config->deleteAppValue('testing', 'locking_' . $path);
return new DataResponse();
} catch (LockedException $e) {
throw new OCSException('', Http::STATUS_LOCKED, $e);
}
}
/**
* @throws OCSException
*/
public function isLocked(int $type, string $user, string $path): DataResponse {
try {
$path = $this->getPath($user, $path);
} catch (NoUserException $e) {
throw new OCSException('User not found', Http::STATUS_NOT_FOUND, $e);
} catch (NotFoundException $e) {
throw new OCSException('Path not found', Http::STATUS_NOT_FOUND, $e);
}
$lockingProvider = $this->getLockingProvider();
if ($lockingProvider->isLocked($path, $type)) {
return new DataResponse();
}
throw new OCSException('', Http::STATUS_LOCKED);
}
public function releaseAll(int $type = null): DataResponse {
$lockingProvider = $this->getLockingProvider();
foreach ($this->config->getAppKeys('testing') as $lock) {
if (strpos($lock, 'locking_') === 0) {
$path = substr($lock, strlen('locking_'));
if ($type === ILockingProvider::LOCK_EXCLUSIVE && (int)$this->config->getAppValue('testing', $lock) === ILockingProvider::LOCK_EXCLUSIVE) {
$lockingProvider->releaseLock($path, (int)$this->config->getAppValue('testing', $lock));
} elseif ($type === ILockingProvider::LOCK_SHARED && (int)$this->config->getAppValue('testing', $lock) === ILockingProvider::LOCK_SHARED) {
$lockingProvider->releaseLock($path, (int)$this->config->getAppValue('testing', $lock));
} else {
$lockingProvider->releaseLock($path, (int)$this->config->getAppValue('testing', $lock));
}
}
}
return new DataResponse();
}
}
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