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| 1 | <?php |
| 2 | /** |
| 3 | * |
| 4 | * This file is part of the phpBB Forum Software package. |
| 5 | * |
| 6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
| 7 | * @license GNU General Public License, version 2 (GPL-2.0) |
| 8 | * |
| 9 | * For full copyright and license information, please see |
| 10 | * the docs/CREDITS.txt file. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | namespace phpbb\di; |
| 15 | |
| 16 | use ProxyManager\Configuration; |
| 17 | use ProxyManager\Factory\LazyLoadingValueHolderFactory; |
| 18 | use ProxyManager\GeneratorStrategy\EvaluatingGeneratorStrategy; |
| 19 | use Symfony\Component\DependencyInjection\ContainerInterface; |
| 20 | use Symfony\Component\DependencyInjection\Definition; |
| 21 | use Symfony\Component\DependencyInjection\LazyProxy\Instantiator\InstantiatorInterface; |
| 22 | |
| 23 | /** |
| 24 | * Runtime lazy loading proxy generator extended for allowing use while using |
| 25 | * open_basedir restrictions |
| 26 | * |
| 27 | * Original author: Marco Pivetta <ocramius@gmail.com> |
| 28 | */ |
| 29 | class proxy_instantiator implements InstantiatorInterface |
| 30 | { |
| 31 | /** |
| 32 | * @var LazyLoadingValueHolderFactory |
| 33 | */ |
| 34 | private $factory; |
| 35 | |
| 36 | /** |
| 37 | * proxy_instantiator constructor |
| 38 | * @param string $cache_dir Cache dir for fall back when using open_basedir |
| 39 | */ |
| 40 | public function __construct($cache_dir) |
| 41 | { |
| 42 | $config = new Configuration(); |
| 43 | |
| 44 | // Prevent trying to write to system temp dir in case of open_basedir |
| 45 | // restrictions being in effect |
| 46 | $tmp_dir = (function_exists('sys_get_temp_dir')) ? sys_get_temp_dir() : ''; |
| 47 | if (empty($tmp_dir) || !@file_exists($tmp_dir) || !@is_writable($tmp_dir)) |
| 48 | { |
| 49 | $config->setProxiesTargetDir($cache_dir); |
| 50 | } |
| 51 | $config->setGeneratorStrategy(new EvaluatingGeneratorStrategy()); |
| 52 | |
| 53 | $this->factory = new LazyLoadingValueHolderFactory($config); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * {@inheritdoc} |
| 58 | */ |
| 59 | public function instantiateProxy(ContainerInterface $container, Definition $definition, $id, $realInstantiator) |
| 60 | { |
| 61 | return $this->factory->createProxy( |
| 62 | $definition->getClass(), |
| 63 | function (&$wrappedInstance, \ProxyManager\Proxy\LazyLoadingInterface $proxy) use ($realInstantiator) { |
| 64 | $wrappedInstance = call_user_func($realInstantiator); |
| 65 | |
| 66 | $proxy->setProxyInitializer(null); |
| 67 | |
| 68 | return true; |
| 69 | } |
| 70 | ); |
| 71 | } |
| 72 | } |