148 lines
3.2 KiB
PHP
148 lines
3.2 KiB
PHP
<?php
|
|
|
|
namespace Friendica\Core;
|
|
|
|
use Friendica\Database\DBA;
|
|
use Friendica\Core\Config;
|
|
|
|
|
|
|
|
/**
|
|
* @brief Manage storage backends
|
|
*
|
|
* Core code uses this class to get and set current storage backend class.
|
|
* Addons use this class to register and unregister additional backends.
|
|
*/
|
|
class StorageManager
|
|
{
|
|
private static $default_backends = [
|
|
'Filesystem' => Friendica\Model\Storage\Filesystem::class,
|
|
'Database' => Friendica\Model\Storage\Database::class,
|
|
];
|
|
|
|
private static $backends = [];
|
|
|
|
private static function setup()
|
|
{
|
|
if (count(self::$backends)==0) {
|
|
self::$backends = Config::get('storage', 'backends', self::$default_backends);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Return current storage backend class
|
|
* @return string
|
|
*/
|
|
public static function getBackend()
|
|
{
|
|
return Config::get('storage', 'class', '');
|
|
}
|
|
|
|
/**
|
|
* @brief Return storage backend class by registered name
|
|
*
|
|
* @param string $name Backend name
|
|
* @return string Empty if no backend registered at $name exists
|
|
*/
|
|
public static function getByName($name)
|
|
{
|
|
self::setup();
|
|
return defaults(self::$backends, $name, '');
|
|
}
|
|
|
|
/**
|
|
* @brief Set current storage backend class
|
|
*
|
|
* @param string $class Backend class name
|
|
*/
|
|
public static function setBackend($class)
|
|
{
|
|
/// @todo Check that $class implements IStorage
|
|
Config::set('storage', 'class', $class);
|
|
}
|
|
|
|
/**
|
|
* @brief Get registered backends
|
|
*
|
|
* @return array
|
|
*/
|
|
public static function listBackends()
|
|
{
|
|
self::setup();
|
|
return self::$backends;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* @brief Register a storage backend class
|
|
*
|
|
* @param string $name User readable backend name
|
|
* @param string $class Backend class name
|
|
*/
|
|
public static function register($name, $class)
|
|
{
|
|
/// @todo Check that $class implements IStorage
|
|
self::setup();
|
|
self::$backends[$name] = $class;
|
|
Config::set('storage', 'backends', self::$backends);
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Unregister a storage backend class
|
|
*
|
|
* @param string $name User readable backend name
|
|
*/
|
|
public static function unregister($class)
|
|
{
|
|
self::setup();
|
|
unset(self::$backends[$name]);
|
|
Config::set('storage', 'backends', self::$backends);
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Move resources to storage $dest
|
|
*
|
|
* @param string $dest Destination storage class name
|
|
* @param array $tables Tables to look in for resources. Optional, defaults to ['photo']
|
|
*
|
|
* @retur int Number of moved resources
|
|
*/
|
|
public static function move($dest, $tables = null)
|
|
{
|
|
if (is_null($tables)) {
|
|
$tables = ['photo'];
|
|
}
|
|
|
|
$moved = 0;
|
|
foreach ($tables as $table) {
|
|
$rr = DBA::select($table, ['id', 'data', 'backend-class', 'backend-ref'], ['`backend-class` != ?', $dest]);
|
|
if (DBA::isResult($rr)) {
|
|
while($r = $rr->fetch()) {
|
|
$id = $r['id'];
|
|
$data = $r['data'];
|
|
$backendClass = $r['backend-class'];
|
|
$backendRef = $r['backend-ref'];
|
|
if ($backendClass !== '') {
|
|
$data = $backendClass::get($backendRef);
|
|
}
|
|
$ref = $dest::put($data);
|
|
|
|
if ($ref !== "") {
|
|
$ru = DBA::update($table, ["backend-class" => $dest, "backend-ref" => $ref, "data" => ""], ["id" => $id]);
|
|
if ($ru) {
|
|
if ($backendClass !== "") {
|
|
$backendClass::delete($backendRef);
|
|
}
|
|
$moved++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return $moved;
|
|
}
|
|
} |