Working on stack.

app/Http/Filters/BasicAuthFilter.php

@@ -1,35 +0,0 @@
-<?php namespace App\Http\Filters;
-
-use Illuminate\Contracts\Auth\Authenticator;
-
-class BasicAuthFilter {
-
-	/**
-	 * The authenticator implementation.
-	 *
-	 * @var Authenticator
-	 */
-	protected $auth;
-
-	/**
-	 * Create a new filter instance.
-	 *
-	 * @param  Authenticator  $auth
-	 * @return void
-	 */
-	public function __construct(Authenticator $auth)
-	{
-		$this->auth = $auth;
-	}
-
-	/**
-	 * Run the request filter.
-	 *
-	 * @return mixed
-	 */
-	public function filter()
-	{
-		return $this->auth->basic();
-	}
-
-}

app/Http/Filters/CsrfFilter.php

@@ -1,26 +0,0 @@
-<?php namespace App\Http\Filters;
-
-use Illuminate\Http\Request;
-use Illuminate\Routing\Route;
-use Illuminate\Session\TokenMismatchException;
-
-class CsrfFilter {
-
-	/**
-	 * Run the request filter.
-	 *
-	 * @param  \Illuminate\Routing\Route  $route
-	 * @param  \Illuminate\Http\Request  $request
-	 * @return void
-	 *
-	 * @throws \Illuminate\Session\TokenMismatchException
-	 */
-	public function filter(Route $route, Request $request)
-	{
-		if ($request->getSession()->token() != $request->input('_token'))
-		{
-			throw new TokenMismatchException;
-		}
-	}
-
-}

app/Http/Middleware/AuthMiddleware.php

@@ -1,11 +1,12 @@
-<?php namespace App\Http\Filters;
+<?php namespace App\Http\Middleware;
 
-use Illuminate\Http\Request;
+use Closure;
 use Illuminate\Routing\Route;
 use Illuminate\Contracts\Auth\Authenticator;
+use Illuminate\Contracts\Routing\Middleware;
 use Illuminate\Contracts\Routing\ResponseFactory;
 
-class AuthFilter {
+class AuthMiddleware implements Middleware {
 
 	/**
 	 * The authenticator implementation.
@@ -36,13 +37,13 @@ class AuthFilter {
 	}
 
 	/**
-	 * Run the request filter.
+	 * Handle an incoming request.
 	 *
-	 * @param  \Illuminate\Routing\Route  $route
-	 * @param  \Illuminate\Http\Request  $request
-	 * @return mixed
+	 * @param  \Symfony\Component\HttpFoundation\Request  $request
+	 * @param  \Closure  $next
+	 * @return \Symfony\Component\HttpFoundation\Response
 	 */
-	public function filter(Route $route, Request $request)
+	public function handle($request, Closure $next)
 	{
 		if ($this->auth->guest())
 		{
@@ -55,6 +56,8 @@ class AuthFilter {
 				return $this->response->redirectGuest('auth/login');
 			}
 		}
+
+		return $next($request);
 	}
 
 }

app/Http/Middleware/BasicAuthMiddleware.php

@@ -0,0 +1,39 @@
+<?php namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Contracts\Routing\Middleware;
+use Illuminate\Contracts\Auth\Authenticator;
+
+class BasicAuthMiddleware implements Middleware {
+
+	/**
+	 * The authenticator implementation.
+	 *
+	 * @var Authenticator
+	 */
+	protected $auth;
+
+	/**
+	 * Create a new filter instance.
+	 *
+	 * @param  Authenticator  $auth
+	 * @return void
+	 */
+	public function __construct(Authenticator $auth)
+	{
+		$this->auth = $auth;
+	}
+
+	/**
+	 * Handle an incoming request.
+	 *
+	 * @param  \Symfony\Component\HttpFoundation\Request  $request
+	 * @param  \Closure  $next
+	 * @return \Symfony\Component\HttpFoundation\Response
+	 */
+	public function handle($request, Closure $next)
+	{
+		return $this->auth->basic() ?: $next($request);
+	}
+
+}

app/Http/Middleware/CsrfMiddleware.php

@@ -0,0 +1,26 @@
+<?php namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Contracts\Routing\Middleware;
+use Illuminate\Session\TokenMismatchException;
+
+class CsrfMiddleware implements Middleware {
+
+	/**
+	 * Handle an incoming request.
+	 *
+	 * @param  \Symfony\Component\HttpFoundation\Request  $request
+	 * @param  \Closure  $next
+	 * @return \Symfony\Component\HttpFoundation\Response
+	 */
+	public function handle($request, Closure $next)
+	{
+		if ($request->getSession()->token() != $request->input('_token'))
+		{
+			throw new TokenMismatchException;
+		}
+
+		return $next($request);
+	}
+
+}

app/Http/Middleware/GuestMiddleware.php

@@ -1,9 +1,11 @@
-<?php namespace App\Http\Filters;
+<?php namespace App\Http\Middleware;
 
-use Illuminate\Contracts\Auth\Authenticator;
+use Closure;
 use Illuminate\Http\RedirectResponse;
+use Illuminate\Contracts\Auth\Authenticator;
+use Illuminate\Contracts\Routing\Middleware;
 
-class GuestFilter {
+class GuestMiddleware implements Middleware {
 
 	/**
 	 * The authenticator implementation.
@@ -24,16 +26,20 @@ class GuestFilter {
 	}
 
 	/**
-	 * Run the request filter.
+	 * Handle an incoming request.
 	 *
-	 * @return mixed
+	 * @param  \Symfony\Component\HttpFoundation\Request  $request
+	 * @param  \Closure  $next
+	 * @return \Symfony\Component\HttpFoundation\Response
 	 */
-	public function filter()
+	public function handle($request, Closure $next)
 	{
 		if ($this->auth->check())
 		{
 			return new RedirectResponse(url('/'));
 		}
+
+		return $next($request);
 	}
 
 }

app/Http/Middleware/MaintenanceMiddleware.php

@@ -1,9 +1,11 @@
-<?php namespace App\Http\Filters;
+<?php namespace App\Http\Middleware;
 
+use Closure;
 use Illuminate\Http\Response;
+use Illuminate\Contracts\Routing\Middleware;
 use Illuminate\Contracts\Foundation\Application;
 
-class MaintenanceFilter {
+class MaintenanceMiddleware {
 
 	/**
 	 * The application implementation.
@@ -24,16 +26,20 @@ class MaintenanceFilter {
 	}
 
 	/**
-	 * Run the request filter.
+	 * Handle an incoming request.
 	 *
-	 * @return mixed
+	 * @param  \Symfony\Component\HttpFoundation\Request  $request
+	 * @param  \Closure  $next
+	 * @return \Symfony\Component\HttpFoundation\Response
 	 */
-	public function filter()
+	public function handle($request, Closure $next)
 	{
 		if ($this->app->isDownForMaintenance())
 		{
 			return new Response('Be right back!', 503);
 		}
+
+		return $next($request);
 	}
 
 }