This is the two factor middleware. #219

app/Http/Middleware/AuthenticateTwoFactor.php

@@ -0,0 +1,64 @@
+<?php
+/**
+ * AuthenticateTwoFactor.php
+ * Copyright (C) 2016 Sander Dorigo
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+declare(strict_types = 1);
+
+namespace FireflyIII\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
+use Preferences;
+use Session;
+
+/**
+ * Class AuthenticateTwoFactor
+ *
+ * @package FireflyIII\Http\Middleware
+ */
+class AuthenticateTwoFactor
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Illuminate\Http\Request $request
+     * @param  \Closure                 $next
+     * @param  string|null              $guard
+     *
+     * @return mixed
+     */
+    public function handle(Request $request, Closure $next, $guard = null)
+    {
+
+        // do the usual auth, again:
+        if (Auth::guard($guard)->guest()) {
+            if ($request->ajax()) {
+                return response('Unauthorized.', 401);
+            } else {
+                return redirect()->guest('login');
+            }
+        } else {
+
+            if (intval(Auth::user()->blocked) === 1) {
+                Auth::guard($guard)->logout();
+                Session::flash('logoutMessage', trans('firefly.block_account_logout'));
+
+                return redirect()->guest('login');
+            }
+        }
+        $twoFactorAuthEnabled     = Preferences::get('twoFactorAuthEnabled', false)->data;
+        $hasTwoFactorAuthSecret   = !is_null(Preferences::get('twoFactorAuthSecret'));
+        $isTwoFactorAuthenticated = Session::get('twofactor-authenticated');
+        if ($twoFactorAuthEnabled && $hasTwoFactorAuthSecret && !$isTwoFactorAuthenticated) {
+            return redirect(route('two-factor'));
+        }
+
+        return $next($request);
+    }
+}