nextcloud/apps/files_sharing/lib/watcher.php

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<?php
/**
* ownCloud
*
* @author Michael Gapczynski
* @copyright 2012 Michael Gapczynski mtgap@owncloud.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 library. If not, see <http://www.gnu.org/licenses/>.
*/
namespace OC\Files\Cache;
/**
* check the storage backends for updates and change the cache accordingly
*/
class Shared_Watcher extends Watcher {
/**
* check $path for updates
*
* @param string $path
*/
public function checkUpdate($path) {
if ($path != '' && parent::checkUpdate($path)) {
// since checkUpdate() has already updated the size of the subdirs,
// only apply the update to the owner's parent dirs
// find last parent before reaching the shared storage root,
// which is the actual shared dir from the owner
$sepPos = strpos($path, '/');
if ($sepPos > 0) {
$baseDir = substr($path, 0, $sepPos);
} else {
$baseDir = $path;
}
// find the path relative to the data dir
$file = $this->storage->getFile($baseDir);
$view = new \OC\Files\View('/' . $file['fileOwner']);
// find the owner's storage and path
list($storage, $internalPath) = $view->resolvePath($file['path']);
// update the parent dirs' sizes in the owner's cache
$storage->getCache()->correctFolderSize(dirname($internalPath));
return true;
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}
return false;
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}
/**
* remove deleted files in $path from the cache
*
* @param string $path
*/
public function cleanFolder($path) {
if ($path != '') {
parent::cleanFolder($path);
}
}
}