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<?php
/**
* Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Files\Cache;
/**
* listen to filesystem hooks and change the cache accordingly
*/
class Updater {
/**
* resolve a path to a storage and internal path
*
* @param string $path
* @return array consisting of the storage and the internal path
*/
static public function resolvePath($path) {
$view = \OC\Files\Filesystem::getView();
return $view->resolvePath($path);
}
static public function writeUpdate($path) {
/**
* @var \OC\Files\Storage\Storage $storage
* @var string $internalPath
*/
list($storage, $internalPath) = self::resolvePath($path);
if ($storage) {
$cache = $storage->getCache();
$scanner = $storage->getScanner();
$scanner->scan($internalPath, Scanner::SCAN_SHALLOW);
$cache->correctFolderSize($internalPath);
self::eTagUpdate($path);
}
}
static public function deleteUpdate($path) {
/**
* @var \OC\Files\Storage\Storage $storage
* @var string $internalPath
*/
list($storage, $internalPath) = self::resolvePath($path);
if ($storage) {
$cache = $storage->getCache();
$cache->remove($internalPath);
$cache->correctFolderSize($internalPath);
self::eTagUpdate($path);
}
}
static public function eTagUpdate($path) {
if ($path !== '' && $path !== '/') {
$parent = dirname($path);
if ($parent === '.') {
$parent = '';
}
/**
* @var \OC\Files\Storage\Storage $storage
* @var string $internalPath
*/
list($storage, $internalPath) = self::resolvePath($parent);
if ($storage) {
$cache = $storage->getCache();
$id = $cache->getId($internalPath);
if ($id !== -1) {
$cache->update($id, array('etag' => $storage->getETag($internalPath)));
self::eTagUpdate($parent);
}
}
}
}
/**
* @param array $params
*/
static public function writeHook($params) {
self::writeUpdate($params['path']);
}
/**
* @param array $params
*/
static public function renameHook($params) {
self::deleteUpdate($params['oldpath']);
self::writeUpdate($params['newpath']);
}
/**
* @param array $params
*/
static public function deleteHook($params) {
self::deleteUpdate($params['path']);
}
}
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