nextcloud/lib/files/cache/upgrade.php

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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;
class Upgrade {
static $permissionsCaches = array();
static function upgrade() {
$insertQuery = \OC_DB::prepare('INSERT INTO `*PREFIX*filecache`( `fileid`, `storage`, `path`, `path_hash`, `parent`, `name`, `mimetype`, `mimepart`, `size`, `mtime`, `encrypted` )
VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)');
try {
$oldEntriesQuery = \OC_DB::prepare('SELECT * FROM `*PREFIX*fscache` ORDER BY `id` ASC'); //sort ascending to ensure the parent gets inserted before a child
} catch (\Exception $e) {
return;
}
try {
$oldEntriesResult = $oldEntriesQuery->execute();
} catch (\Exception $e) {
return;
}
if (!$oldEntriesResult) {
return;
}
$checkExistingQuery = \OC_DB::prepare('SELECT `fileid` FROM `*PREFIX*filecache` WHERE `fileid` = ?');
while ($row = $oldEntriesResult->fetchRow()) {
if($checkExistingQuery->execute(array($row['id']))->fetchRow()){
continue;
}
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($row['path']);
/**
* @var \OC\Files\Storage\Storage $storage
* @var string $internalPath;
*/
$pathHash = md5($internalPath);
$storageId = $storage->getId();
$parentId = ($internalPath === '') ? -1 : $row['parent'];
$insertQuery->execute(array($row['id'], $storageId, $internalPath, $pathHash, $parentId, $row['name'], $row['mimetype'], $row['mimepart'], $row['size'], $row['mtime'], $row['encrypted']));
$permissions = ($row['writable']) ? \OCP\PERMISSION_ALL : \OCP\PERMISSION_READ;
$permissionsCache = self::getPermissionsCache($storage);
$permissionsCache->set($row['id'], $row['user'], $permissions);
}
}
/**
* @param \OC\Files\Storage\Storage $storage
* @return Permissions
*/
static function getPermissionsCache($storage) {
$storageId = $storage->getId();
if (!isset(self::$permissionsCaches[$storageId])) {
self::$permissionsCaches[$storageId] = $storage->getPermissionsCache();
}
return self::$permissionsCaches[$storageId];
}
}