From 148b0b83e490691dbea87a18a713b63b72f321f9 Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Wed, 12 Jun 2013 19:27:45 +0200
Subject: [PATCH] Forcing redirect to application's domain if mismatching

---
 .../system/request/RequestHandler.class.php   | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/wcfsetup/install/files/lib/system/request/RequestHandler.class.php b/wcfsetup/install/files/lib/system/request/RequestHandler.class.php
index 2fb25bff34..8c729f1a09 100644
--- a/wcfsetup/install/files/lib/system/request/RequestHandler.class.php
+++ b/wcfsetup/install/files/lib/system/request/RequestHandler.class.php
@@ -7,6 +7,7 @@ use wcf\system\exception\SystemException;
 use wcf\system\menu\page\PageMenu;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
+use wcf\util\FileUtil;
 use wcf\util\HeaderUtil;
 use wcf\util\StringUtil;
 
@@ -121,6 +122,27 @@ class RequestHandler extends SingletonFactory {
 				}
 			}
 			
+			// check if accessing from the wrong domain (e.g. "www." omitted but domain was configured with)
+			$applicationObject = ApplicationHandler::getInstance()->getApplication($application);
+			if ($applicationObject->domainName != $_SERVER['HTTP_HOST']) {
+				// build URL, e.g. http://example.net/forum/
+				$url = FileUtil::addTrailingSlash(RouteHandler::getProtocol() . $applicationObject->domainName . RouteHandler::getPath());
+				
+				// add path info, e.g. index.php/Board/2/
+				$pathInfo = RouteHandler::getPathInfo();
+				if (!empty($pathInfo)) {
+					$url .= 'index.php' . $pathInfo;
+				}
+				
+				// query string, e.g. ?foo=bar
+				if (!empty($_SERVER['QUERY_STRING'])) {
+					$url .= '?' . $_SERVER['QUERY_STRING'];
+				}
+				
+				HeaderUtil::redirect($url, true);
+				exit;
+			}
+			
 			$controller = $routeData['controller'];
 			
 			// validate class name
-- 
2.20.1