104 lines
2.4 KiB
PHP
104 lines
2.4 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, Roeland Jago Douma <roeland@famdouma.nl>
|
|
*
|
|
* @author Roeland Jago Douma <roeland@famdouma.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 OC\Preview;
|
|
|
|
use OCP\Files\File;
|
|
use OCP\Files\Node;
|
|
use OCP\Files\Folder;
|
|
use OCP\Files\IAppData;
|
|
use OCP\Files\NotFoundException;
|
|
|
|
/**
|
|
* Class Watcher
|
|
*
|
|
* @package OC\Preview
|
|
*
|
|
* Class that will watch filesystem activity and remove previews as needed.
|
|
*/
|
|
class Watcher {
|
|
/** @var IAppData */
|
|
private $appData;
|
|
|
|
/** @var int[] */
|
|
private $toDelete = [];
|
|
|
|
/**
|
|
* Watcher constructor.
|
|
*
|
|
* @param IAppData $appData
|
|
*/
|
|
public function __construct(IAppData $appData) {
|
|
$this->appData = $appData;
|
|
}
|
|
|
|
public function postWrite(Node $node) {
|
|
// We only handle files
|
|
if ($node instanceof Folder) {
|
|
return;
|
|
}
|
|
|
|
try {
|
|
$folder = $this->appData->getFolder($node->getId());
|
|
$folder->delete();
|
|
} catch (NotFoundException $e) {
|
|
//Nothing to do
|
|
}
|
|
}
|
|
|
|
public function preDelete(Node $node) {
|
|
// To avoid cycles
|
|
if ($this->toDelete !== []) {
|
|
return;
|
|
}
|
|
|
|
if ($node instanceof File) {
|
|
$this->toDelete[] = $node->getId();
|
|
return;
|
|
}
|
|
|
|
/** @var Folder $node */
|
|
$this->deleteFolder($node);
|
|
}
|
|
|
|
private function deleteFolder(Folder $folder) {
|
|
$nodes = $folder->getDirectoryListing();
|
|
foreach ($nodes as $node) {
|
|
if ($node instanceof File) {
|
|
$this->toDelete[] = $node->getId();
|
|
} else if ($node instanceof Folder) {
|
|
$this->deleteFolder($node);
|
|
}
|
|
}
|
|
}
|
|
|
|
public function postDelete(Node $node) {
|
|
foreach ($this->toDelete as $fid) {
|
|
try {
|
|
$folder = $this->appData->getFolder($fid);
|
|
$folder->delete();
|
|
} catch (NotFoundException $e) {
|
|
// continue
|
|
}
|
|
}
|
|
}
|
|
}
|