1 files changed, 72 insertions, 0 deletions
diff --git a/phpBB/phpbb/di/proxy_instantiator.php b/phpBB/phpbb/di/proxy_instantiator.php
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index 0000000000..70295a3dec
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+++ b/phpBB/phpbb/di/proxy_instantiator.php
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+<?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;
+			}
+		);
+	}
+}