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<?php
/**
* @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
*
* @author Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Files_Trashbin\Trash;
use OCP\Files\Storage\IStorage;
use OCP\IUser;
class TrashManager implements ITrashManager {
/** @var ITrashBackend[] */
private $backends = [];
private $trashPaused = false;
public function registerBackend(string $storageType, ITrashBackend $backend) {
$this->backends[$storageType] = $backend;
}
/**
* @return ITrashBackend[]
*/
private function getBackends(): array {
return $this->backends;
}
public function listTrashRoot(IUser $user): array {
$items = array_reduce($this->getBackends(), function (array $items, ITrashBackend $backend) use ($user) {
return array_merge($items, $backend->listTrashRoot($user));
}, []);
usort($items, function (ITrashItem $a, ITrashItem $b) {
return $a->getDeletedTime() - $b->getDeletedTime();
});
return $items;
}
private function getBackendForItem(ITrashItem $item) {
return $item->getTrashBackend();
}
public function listTrashFolder(ITrashItem $folder): array {
return $this->getBackendForItem($folder)->listTrashFolder($folder);
}
public function restoreItem(ITrashItem $item) {
return $this->getBackendForItem($item)->restoreItem($item);
}
public function removeItem(ITrashItem $item) {
$this->getBackendForItem($item)->removeItem($item);
}
/**
* @param IStorage $storage
* @return ITrashBackend
* @throws BackendNotFoundException
*/
public function getBackendForStorage(IStorage $storage): ITrashBackend {
$fullType = get_class($storage);
$foundType = array_reduce(array_keys($this->backends), function ($type, $registeredType) use ($storage) {
if (
$storage->instanceOfStorage($registeredType) &&
($type === '' || is_subclass_of($registeredType, $type))
) {
return $registeredType;
} else {
return $type;
}
}, '');
if ($foundType === '') {
throw new BackendNotFoundException("Trash backend for $fullType not found");
} else {
return $this->backends[$foundType];
}
}
public function moveToTrash(IStorage $storage, string $internalPath): bool {
if ($this->trashPaused) {
return false;
}
try {
$backend = $this->getBackendForStorage($storage);
$this->trashPaused = true;
$result = $backend->moveToTrash($storage, $internalPath);
$this->trashPaused = false;
return $result;
} catch (BackendNotFoundException $e) {
return false;
}
}
public function getTrashNodeById(IUser $user, int $fileId) {
foreach ($this->backends as $backend) {
$item = $backend->getTrashNodeById($user, $fileId);
if ($item !== null) {
return $item;
}
}
return null;
}
public function pauseTrash() {
$this->trashPaused = true;
}
public function resumeTrash() {
$this->trashPaused = false;
}
}
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