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<?php
/**
* Copyright (c) 2015 Vincent Petry <pvince81@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OCA\Files_external\Service;
use \OCP\IUserSession;
use \OC\Files\Filesystem;
use \OCA\Files_external\Lib\StorageConfig;
use \OCA\Files_external\NotFoundException;
/**
* Service class to manage user external storages
* (aka personal storages)
*/
class UserStoragesService extends StoragesService {
/**
* User session
*
* @var IUserSession
*/
private $userSession;
/**
* Create a user storages service
*
* @param IUserSession $userSession user session
*/
public function __construct(
IUserSession $userSession
) {
$this->userSession = $userSession;
}
/**
* Read legacy config data
*
* @return array list of storage configs
*/
protected function readLegacyConfig() {
// read user config
$user = $this->userSession->getUser()->getUID();
return \OC_Mount_Config::readData($user);
}
/**
* Read the external storages config
*
* @return array map of storage id to storage config
*/
protected function readConfig() {
$user = $this->userSession->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->userSession->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);
}
\OC_Mount_Config::writeData($user, $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->userSession->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);
}
}
}
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