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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 {
/**
* @var Legacy $legacy
*/
private $legacy;
private $numericIds = array();
private $mimeTypeIds = array();
/**
* @param Legacy $legacy
*/
public function __construct($legacy) {
$this->legacy = $legacy;
}
/**
* Preform a shallow upgrade
*
* @param string $path
* @param int $mode
*/
function upgradePath($path, $mode = Scanner::SCAN_RECURSIVE) {
if (!$this->legacy->hasItems()) {
return;
}
\OC_Hook::emit('\OC\Files\Cache\Upgrade', 'migrate_path', $path);
if ($row = $this->legacy->get($path)) {
$data = $this->getNewData($row);
$this->insert($data);
$this->upgradeChilds($data['id'], $mode);
}
}
/**
* @param int $id
*/
function upgradeChilds($id, $mode = Scanner::SCAN_RECURSIVE) {
$children = $this->legacy->getChildren($id);
foreach ($children as $child) {
$childData = $this->getNewData($child);
\OC_Hook::emit('\OC\Files\Cache\Upgrade', 'migrate_path', $child['path']);
$this->insert($childData);
if ($mode == Scanner::SCAN_RECURSIVE) {
$this->upgradeChilds($child['id']);
}
}
}
/**
* @param array $data the data for the new cache
*/
function insert($data) {
if (!$this->inCache($data['storage'], $data['path_hash'])) {
$insertQuery = \OC_DB::prepare('INSERT INTO `*PREFIX*filecache`
( `fileid`, `storage`, `path`, `path_hash`, `parent`, `name`, `mimetype`, `mimepart`, `size`, `mtime`, `encrypted` )
VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)');
$insertQuery->execute(array($data['id'], $data['storage'], $data['path'], $data['path_hash'], $data['parent'], $data['name'],
$data['mimetype'], $data['mimepart'], $data['size'], $data['mtime'], $data['encrypted']));
}
}
/**
* @param string $storage
* @param string $pathHash
* @return bool
*/
function inCache($storage, $pathHash) {
$query = \OC_DB::prepare('SELECT `fileid` FROM `*PREFIX*filecache` WHERE `storage` = ? AND `path_hash` = ?');
$result = $query->execute(array($storage, $pathHash));
return (bool)$result->fetchRow();
}
/**
* get the new data array from the old one
*
* @param array $data the data from the old cache
* @return array
*/
function getNewData($data) {
$newData = $data;
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($data['path']);
/**
* @var \OC\Files\Storage\Storage $storage
* @var string $internalPath;
*/
$newData['path_hash'] = md5($internalPath);
$newData['path'] = $internalPath;
$newData['storage'] = $this->getNumericId($storage);
$newData['parent'] = ($internalPath === '') ? -1 : $data['parent'];
$newData['permissions'] = ($data['writable']) ? \OCP\PERMISSION_ALL : \OCP\PERMISSION_READ;
$newData['storage_object'] = $storage;
$newData['mimetype'] = $this->getMimetypeId($newData['mimetype'], $storage);
$newData['mimepart'] = $this->getMimetypeId($newData['mimepart'], $storage);
return $newData;
}
/**
* get the numeric storage id
*
* @param \OC\Files\Storage\Storage $storage
* @return int
*/
function getNumericId($storage) {
$storageId = $storage->getId();
if (!isset($this->numericIds[$storageId])) {
$cache = $storage->getCache();
$this->numericIds[$storageId] = $cache->getNumericStorageId();
}
return $this->numericIds[$storageId];
}
/**
* @param string $mimetype
* @param \OC\Files\Storage\Storage $storage
* @return int
*/
function getMimetypeId($mimetype, $storage) {
if (!isset($this->mimeTypeIds[$mimetype])) {
$cache = new Cache($storage);
$this->mimeTypeIds[$mimetype] = $cache->getMimetypeId($mimetype);
}
return $this->mimeTypeIds[$mimetype];
}
/**
* check if a cache upgrade is required for $user
*
* @param string $user
* @return bool
*/
static function needUpgrade($user) {
$cacheVersion = (int)\OCP\Config::getUserValue($user, 'files', 'cache_version', 4);
return $cacheVersion < 5;
}
/**
* mark the filecache as upgrade
*
* @param string $user
*/
static function upgradeDone($user) {
\OCP\Config::setUserValue($user, 'files', 'cache_version', 5);
}
}
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