[feature/controller] Use query string, not path info, for controller access

This is hopefully just temporary until we can fix the relative path issue.

PHPBB3-10864

phpBB/app.php

@@ -7,6 +7,8 @@
 *
 */
 
+use Symfony\Component\HttpFoundation\Request;
+
 /**
 */
 
@@ -24,6 +26,12 @@ $user->session_begin();
 $auth->acl($user->data);
 $user->setup('app');
 
+// Until we fix the issue with relative paths, we have to fake path info to
+// allow urls like app.php?controller=foo/bar
+$controller = $request->variable('controller', '', false, phpbb_request_interface::GET);
+$uri = '/' . $controller;
+$symfony_request = Request::create($uri);
+
 $http_kernel = $phpbb_container->get('http_kernel');
 $response = $http_kernel->handle($symfony_request);
 $response->send();