moved assets to middleware for proxy detection

system/Middleware/assetMiddleware.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Typemill\Middleware;
+
+use Slim\Views\Twig;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+class assetMiddleware
+{
+    protected $view;
+    protected $c;
+    
+    public function __construct($container)
+    {
+        # $this->view = $view;
+        $this->container = $container;
+    }
+    
+    public function __invoke(Request $request, Response $response, $next)
+    {
+
+    	# get the uri after proxy detection
+        $uri 	= $request->getUri()->withUserInfo('');
+
+		# update the asset object in the container (for plugins) with the new url
+		$this->container->assets->setBaseUrl($uri->getBaseUrl());
+
+        # add the asset object to twig-frontend for themes
+        $this->container['view']->getEnvironment()->addGlobal('assets', $this->container['assets']);
+        
+        # use {{ base_url() }} in twig templates
+		$this->container['view']['base_url']	 	= $uri->getBaseUrl();
+		$this->container['view']['current_url'] 	= $uri->getPath();
+
+	    $response = $next($request, $response);
+	    
+	    return $response;
+    }
+}