140 lines
3.2 KiB
PHP
140 lines
3.2 KiB
PHP
<?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;
|
|
|
|
/**
|
|
* Provide read only support for the old filecache
|
|
*/
|
|
class Legacy {
|
|
private $user;
|
|
|
|
private $cacheHasItems = null;
|
|
|
|
/**
|
|
* @param string $user
|
|
*/
|
|
public function __construct($user) {
|
|
$this->user = $user;
|
|
}
|
|
|
|
/**
|
|
* get the numbers of items in the legacy cache
|
|
*
|
|
* @return int
|
|
*/
|
|
function getCount() {
|
|
$sql = 'SELECT COUNT(`id`) AS `count` FROM `*PREFIX*fscache` WHERE `user` = ?';
|
|
$result = \OC_DB::executeAudited($sql, array($this->user));
|
|
if ($row = $result->fetchRow()) {
|
|
return $row['count'];
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* check if a legacy cache is present and holds items
|
|
*
|
|
* @return bool
|
|
*/
|
|
function hasItems() {
|
|
if (!is_null($this->cacheHasItems)) {
|
|
return $this->cacheHasItems;
|
|
}
|
|
try {
|
|
$query = \OC_DB::prepare('SELECT `id` FROM `*PREFIX*fscache` WHERE `user` = ?',1);
|
|
} catch (\Exception $e) {
|
|
$this->cacheHasItems = false;
|
|
return false;
|
|
}
|
|
try {
|
|
$result = $query->execute(array($this->user));
|
|
} catch (\Exception $e) {
|
|
$this->cacheHasItems = false;
|
|
return false;
|
|
}
|
|
|
|
if ($result === false || property_exists($result, 'error_message_prefix')) {
|
|
$this->cacheHasItems = false;
|
|
return false;
|
|
}
|
|
|
|
$this->cacheHasItems = (bool)$result->fetchRow();
|
|
return $this->cacheHasItems;
|
|
}
|
|
|
|
/**
|
|
* get an item from the legacy cache
|
|
*
|
|
* @param string $path
|
|
* @return array
|
|
*/
|
|
function get($path) {
|
|
if (is_numeric($path)) {
|
|
$sql = 'SELECT * FROM `*PREFIX*fscache` WHERE `id` = ?';
|
|
} else {
|
|
$sql = 'SELECT * FROM `*PREFIX*fscache` WHERE `path` = ?';
|
|
}
|
|
$result = \OC_DB::executeAudited($sql, array($path));
|
|
$data = $result->fetchRow();
|
|
$data['etag'] = $this->getEtag($data['path'], $data['user']);
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* Get the ETag for the given path
|
|
*
|
|
* @param type $path
|
|
* @return string
|
|
*/
|
|
function getEtag($path, $user = null) {
|
|
static $query = null;
|
|
|
|
$pathDetails = explode('/', $path, 4);
|
|
if((!$user) && !isset($pathDetails[1])) {
|
|
//no user!? Too odd, return empty string.
|
|
return '';
|
|
} else if(!$user) {
|
|
//guess user from path, if no user passed.
|
|
$user = $pathDetails[1];
|
|
}
|
|
|
|
if(!isset($pathDetails[3]) || is_null($pathDetails[3])) {
|
|
$relativePath = '';
|
|
} else {
|
|
$relativePath = $pathDetails[3];
|
|
}
|
|
|
|
if(is_null($query)){
|
|
$query = \OC_DB::prepare('SELECT `propertyvalue` FROM `*PREFIX*properties` WHERE `userid` = ? AND `propertypath` = ? AND `propertyname` = \'{DAV:}getetag\'');
|
|
}
|
|
$result = \OC_DB::executeAudited($query,array($user, '/' . $relativePath));
|
|
if ($row = $result->fetchRow()) {
|
|
return trim($row['propertyvalue'], '"');
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* get all child items of an item from the legacy cache
|
|
*
|
|
* @param int $id
|
|
* @return array
|
|
*/
|
|
function getChildren($id) {
|
|
$result = \OC_DB::executeAudited('SELECT * FROM `*PREFIX*fscache` WHERE `parent` = ?', array($id));
|
|
$data = $result->fetchAll();
|
|
foreach ($data as $i => $item) {
|
|
$data[$i]['etag'] = $this->getEtag($item['path'], $item['user']);
|
|
}
|
|
return $data;
|
|
}
|
|
}
|