1 files changed, 67 insertions, 0 deletions
diff --git a/phpBB/phpbb/auth/provider_collection.php b/phpBB/phpbb/auth/provider_collection.php
new file mode 100644
index 0000000000..8e7e9e2cc1
--- /dev/null
+++ b/phpBB/phpbb/auth/provider_collection.php
@@ -0,0 +1,67 @@
+<?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\auth;
+
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+* Collection of auth providers to be configured at container compile time.
+*/
+class provider_collection extends \phpbb\di\service_collection
+{
+	/** @var \phpbb\config\config phpBB Config */
+	protected $config;
+
+	/**
+	* Constructor
+	*
+	* @param ContainerInterface $container Container object
+	* @param \phpbb\config\config $config phpBB config
+	*/
+	public function __construct(ContainerInterface $container, \phpbb\config\config $config)
+	{
+		$this->container = $container;
+		$this->config = $config;
+	}
+
+	/**
+	* Get an auth provider.
+	*
+	* @param string $provider_name The name of the auth provider
+	* @return object	Default auth provider selected in config if it
+	*			does exist. Otherwise the standard db auth
+	*			provider.
+	* @throws \RuntimeException If neither the auth provider that
+	*			is specified by the phpBB config nor the db
+	*			auth provider exist. The db auth provider
+	*			should always exist in a phpBB installation.
+	*/
+	public function get_provider($provider_name = '')
+	{
+		$provider_name = ($provider_name !== '') ? $provider_name : basename(trim($this->config['auth_method']));
+		if ($this->offsetExists('auth.provider.' . $provider_name))
+		{
+			return $this->offsetGet('auth.provider.' . $provider_name);
+		}
+		// Revert to db auth provider if selected method does not exist
+		else if ($this->offsetExists('auth.provider.db'))
+		{
+			return $this->offsetGet('auth.provider.db');
+		}
+		else
+		{
+			throw new \RuntimeException(sprintf('The authentication provider for the authentication method "%1$s" does not exist. It was not possible to recover from this by reverting to the database authentication provider.', $this->config['auth_method']));
+		}
+	}
+}