<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\di;
use ProxyManager\Configuration;
use ProxyManager\Factory\LazyLoadingValueHolderFactory;
use ProxyManager\GeneratorStrategy\EvaluatingGeneratorStrategy;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\LazyProxy\Instantiator\InstantiatorInterface;
/**
* Runtime lazy loading proxy generator extended for allowing use while using
* open_basedir restrictions
*
* Original author: Marco Pivetta <ocramius@gmail.com>
*/
class proxy_instantiator implements InstantiatorInterface
{
/**
* @var LazyLoadingValueHolderFactory
*/
private $factory;
/**
* proxy_instantiator constructor
* @param string $cache_dir Cache dir for fall back when using open_basedir
*/
public function __construct($cache_dir)
{
$config = new Configuration();
// Prevent trying to write to system temp dir in case of open_basedir
// restrictions being in effect
$tmp_dir = (function_exists('sys_get_temp_dir')) ? sys_get_temp_dir() : '';
if (empty($tmp_dir) || !@file_exists($tmp_dir) || !@is_writable($tmp_dir))
{
$config->setProxiesTargetDir($cache_dir);
}
$config->setGeneratorStrategy(new EvaluatingGeneratorStrategy());
$this->factory = new LazyLoadingValueHolderFactory($config);
}
/**
* {@inheritdoc}
*/
public function instantiateProxy(ContainerInterface $container, Definition $definition, $id, $realInstantiator)
{
return $this->factory->createProxy(
$definition->getClass(),
function (&$wrappedInstance, \ProxyManager\Proxy\LazyLoadingInterface $proxy) use ($realInstantiator) {
$wrappedInstance = call_user_func($realInstantiator);
$proxy->setProxyInitializer(null);
return true;
}
);
}
}