Added Google Two Factor Authentication. Closes #326.

app/routes/auth.php

@@ -1,22 +1,33 @@
 <?php
 
-Route::group(['before' => 'has_setting:app_name', 'namespace' => 'CachetHQ\Cachet\Http\Controllers'], function () {
-    // Login routes
-    Route::get('/auth/login', [
-        'before' => 'guest',
-        'as'     => 'login',
-        'uses'   => 'AuthController@showLogin',
-    ]);
-    Route::post('/auth/login', [
-        'before' => 'guest|csrf|login_throttling',
-        'as'     => 'logout',
-        'uses'   => 'AuthController@postLogin',
-    ]);
-});
+Route::group(['prefix'     => 'auth', 'namespace' => 'CachetHQ\Cachet\Http\Controllers'], function () {
+    Route::group(['before' => 'has_setting:app_name'], function () {
+        // Login routes
+        Route::get('login', [
+            'before' => 'guest',
+            'as'     => 'login',
+            'uses'   => 'AuthController@showLogin',
+        ]);
 
-Route::group(['before' => 'auth', 'namespace' => 'CachetHQ\Cachet\Http\Controllers'], function () {
-    Route::get('/auth/logout', [
-        'as'   => 'logout',
-        'uses' => 'AuthController@logoutAction',
-    ]);
+        Route::post('login', [
+            'before' => 'guest|csrf|login_throttling',
+            'as'     => 'logout',
+            'uses'   => 'AuthController@postLogin',
+        ]);
+
+        // Two factor authorization
+        Route::get('2fa', [
+            'as'   => 'two-factor',
+            'uses' => 'AuthController@showTwoFactorAuth',
+        ]);
+
+        Route::post('2fa', 'AuthController@postTwoFactor');
+    });
+
+    Route::group(['before' => 'auth'], function () {
+        Route::get('logout', [
+            'as'   => 'logout',
+            'uses' => 'AuthController@logoutAction',
+        ]);
+    });
 });