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<?php
/**
* @author Joas Schilling <nickvergessen@owncloud.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Robin McCorkell <robin@mccorkell.me.uk>
* @author Vincent Petry <pvince81@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\Files_External\Config;
use OC\Files\Storage\Wrapper\Availability;
use OCA\Files_External\Migration\StorageMigrator;
use OCP\Files\Storage;
use OC\Files\Mount\MountPoint;
use OCP\Files\Storage\IStorageFactory;
use OCA\Files_External\Lib\PersonalMount;
use OCP\Files\Config\IMountProvider;
use OCP\IUser;
use OCA\Files_External\Service\UserStoragesService;
use OCA\Files_External\Service\UserGlobalStoragesService;
use OCA\Files_External\Lib\StorageConfig;
use OC\Files\Storage\FailedStorage;
use OCP\Files\StorageNotAvailableException;
/**
* Make the old files_external config work with the new public mount config api
*/
class ConfigAdapter implements IMountProvider {
/** @var UserStoragesService */
private $userStoragesService;
/** @var UserGlobalStoragesService */
private $userGlobalStoragesService;
/** @var StorageMigrator */
private $migrator;
/**
* @param UserStoragesService $userStoragesService
* @param UserGlobalStoragesService $userGlobalStoragesService
* @param StorageMigrator $migrator
*/
public function __construct(
UserStoragesService $userStoragesService,
UserGlobalStoragesService $userGlobalStoragesService,
StorageMigrator $migrator
) {
$this->userStoragesService = $userStoragesService;
$this->userGlobalStoragesService = $userGlobalStoragesService;
$this->migrator = $migrator;
}
/**
* Process storage ready for mounting
*
* @param StorageConfig $storage
* @param IUser $user
*/
private function prepareStorageConfig(StorageConfig &$storage, IUser $user) {
foreach ($storage->getBackendOptions() as $option => $value) {
$storage->setBackendOption($option, \OC_Mount_Config::setUserVars(
$user->getUID(), $value
));
}
$objectStore = $storage->getBackendOption('objectstore');
if ($objectStore) {
$objectClass = $objectStore['class'];
if (!is_subclass_of($objectClass, '\OCP\Files\ObjectStore\IObjectStore')) {
throw new \InvalidArgumentException('Invalid object store');
}
$storage->setBackendOption('objectstore', new $objectClass($objectStore));
}
$storage->getAuthMechanism()->manipulateStorageConfig($storage, $user);
$storage->getBackend()->manipulateStorageConfig($storage, $user);
}
/**
* Construct the storage implementation
*
* @param StorageConfig $storageConfig
* @return Storage
*/
private function constructStorage(StorageConfig $storageConfig) {
$class = $storageConfig->getBackend()->getStorageClass();
$storage = new $class($storageConfig->getBackendOptions());
// auth mechanism should fire first
$storage = $storageConfig->getBackend()->wrapStorage($storage);
$storage = $storageConfig->getAuthMechanism()->wrapStorage($storage);
return $storage;
}
/**
* Get all mountpoints applicable for the user
*
* @param \OCP\IUser $user
* @param \OCP\Files\Storage\IStorageFactory $loader
* @return \OCP\Files\Mount\IMountPoint[]
*/
public function getMountsForUser(IUser $user, IStorageFactory $loader) {
$this->migrator->migrateUser($user);
$mounts = [];
$this->userStoragesService->setUser($user);
$this->userGlobalStoragesService->setUser($user);
foreach ($this->userGlobalStoragesService->getUniqueStorages() as $storage) {
try {
$this->prepareStorageConfig($storage, $user);
$impl = $this->constructStorage($storage);
} catch (\Exception $e) {
// propagate exception into filesystem
$impl = new FailedStorage(['exception' => $e]);
}
try {
$availability = $impl->getAvailability();
if (!$availability['available'] && !Availability::shouldRecheck($availability)) {
$impl = new FailedStorage([
'exception' => new StorageNotAvailableException('Storage with mount id ' . $storage->getId() . ' is not available')
]);
}
} catch (\Exception $e) {
// propagate exception into filesystem
$impl = new FailedStorage(['exception' => $e]);
}
$mount = new MountPoint(
$impl,
'/' . $user->getUID() . '/files' . $storage->getMountPoint(),
null,
$loader,
$storage->getMountOptions(),
$storage->getId()
);
$mounts[$storage->getMountPoint()] = $mount;
}
foreach ($this->userStoragesService->getStorages() as $storage) {
try {
$this->prepareStorageConfig($storage, $user);
$impl = $this->constructStorage($storage);
} catch (\Exception $e) {
// propagate exception into filesystem
$impl = new FailedStorage(['exception' => $e]);
}
$mount = new PersonalMount(
$this->userStoragesService,
$storage->getId(),
$impl,
'/' . $user->getUID() . '/files' . $storage->getMountPoint(),
null,
$loader,
$storage->getMountOptions()
);
$mounts[$storage->getMountPoint()] = $mount;
}
$this->userStoragesService->resetUser();
$this->userGlobalStoragesService->resetUser();
return $mounts;
}
}
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