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<?php
/**
* @author Robin McCorkell <rmccorkell@owncloud.com>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @copyright Copyright (c) 2015, 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\Service;
use \OCP\IUserSession;
use \OC\Files\Filesystem;
use \OCA\Files_external\Lib\StorageConfig;
use \OCA\Files_external\NotFoundException;
use \OCA\Files_External\Service\BackendService;
use \OCA\Files_External\Service\UserTrait;
/**
* Service class to manage user external storages
* (aka personal storages)
*/
class UserStoragesService extends StoragesService {
use UserTrait;
/**
* Create a user storages service
*
* @param BackendService $backendService
* @param IUserSession $userSession user session
*/
public function __construct(
BackendService $backendService,
IUserSession $userSession
) {
$this->userSession = $userSession;
parent::__construct($backendService);
}
/**
* Read legacy config data
*
* @return array list of storage configs
*/
protected function readLegacyConfig() {
// read user config
$user = $this->getUser()->getUID();
return \OC_Mount_Config::readData($user);
}
/**
* Write legacy config data
*
* @param array $mountPoints
*/
protected function writeLegacyConfig(array $mountPoints) {
// write user config
$user = $this->getUser()->getUID();
\OC_Mount_Config::writeData($user, $mountPoints);
}
/**
* Read the external storages config
*
* @return array map of storage id to storage config
*/
protected function readConfig() {
$user = $this->getUser()->getUID();
// TODO: in the future don't rely on the global config reading code
$storages = parent::readConfig();
$filteredStorages = [];
foreach ($storages as $configId => $storage) {
// filter out all bogus storages that aren't for the current user
if (!in_array($user, $storage->getApplicableUsers())) {
continue;
}
// clear applicable users, should not be used
$storage->setApplicableUsers([]);
// strip out unneeded applicableUser fields
$filteredStorages[$configId] = $storage;
}
return $filteredStorages;
}
/**
* Write the storages to the user's configuration.
*
* @param array $storages map of storage id to storage config
*/
public function writeConfig($storages) {
$user = $this->getUser()->getUID();
// let the horror begin
$mountPoints = [];
foreach ($storages as $storageConfig) {
$mountPoint = $storageConfig->getMountPoint();
$oldBackendOptions = $storageConfig->getBackendOptions();
$storageConfig->setBackendOptions(
\OC_Mount_Config::encryptPasswords(
$oldBackendOptions
)
);
$rootMountPoint = '/' . $user . '/files/' . ltrim($mountPoint, '/');
$this->addMountPoint(
$mountPoints,
\OC_Mount_Config::MOUNT_TYPE_USER,
$user,
$rootMountPoint,
$storageConfig
);
// restore old backend options where the password was not encrypted,
// because we don't want to change the state of the original object
$storageConfig->setBackendOptions($oldBackendOptions);
}
$this->writeLegacyConfig($mountPoints);
}
/**
* Triggers $signal for all applicable users of the given
* storage
*
* @param StorageConfig $storage storage data
* @param string $signal signal to trigger
*/
protected function triggerHooks(StorageConfig $storage, $signal) {
$user = $this->getUser()->getUID();
// trigger hook for the current user
$this->triggerApplicableHooks(
$signal,
$storage->getMountPoint(),
\OC_Mount_Config::MOUNT_TYPE_USER,
[$user]
);
}
/**
* Triggers signal_create_mount or signal_delete_mount to
* accomodate for additions/deletions in applicableUsers
* and applicableGroups fields.
*
* @param StorageConfig $oldStorage old storage data
* @param StorageConfig $newStorage new storage data
*/
protected function triggerChangeHooks(StorageConfig $oldStorage, StorageConfig $newStorage) {
// if mount point changed, it's like a deletion + creation
if ($oldStorage->getMountPoint() !== $newStorage->getMountPoint()) {
$this->triggerHooks($oldStorage, Filesystem::signal_delete_mount);
$this->triggerHooks($newStorage, Filesystem::signal_create_mount);
}
}
/**
* Get the visibility type for this controller, used in validation
*
* @return string BackendService::VISIBILITY_* constants
*/
public function getVisibilityType() {
return BackendService::VISIBILITY_PERSONAL;
}
}
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