allow full customization of authentication pipeline

src/Fortify.php

@@ -16,6 +16,13 @@
 
 class Fortify
 {
+    /**
+     * The callback that is responsible for building the authentication pipeline array, if applicable.
+     *
+     * @var callable|null
+     */
+    public static $loginThroughCallback;
+
     /**
      * Indicates if Fortify routes will be registered.
      *
@@ -136,6 +143,17 @@ public static function requestPasswordResetLinkView($view)
         });
     }
 
+    /**
+     * Register a callback that is responsible for building the authentication pipeline array.
+     *
+     * @param  callable  $callback
+     * @return void
+     */
+    public static function loginThrough(callable $callback)
+    {
+        static::$loginThroughCallback = $callback;
+    }
+
     /**
      * Register a class / callback that should be used to create new users.
      *

src/Http/Controllers/AuthenticatedSessionController.php

@@ -13,6 +13,7 @@
 use Laravel\Fortify\Contracts\LoginResponse;
 use Laravel\Fortify\Contracts\LoginViewResponse;
 use Laravel\Fortify\Contracts\LogoutResponse;
+use Laravel\Fortify\Fortify;
 use Laravel\Fortify\Http\Requests\LoginRequest;
 
 class AuthenticatedSessionController extends Controller
@@ -54,14 +55,37 @@ public function create(Request $request): LoginViewResponse
      */
     public function store(LoginRequest $request)
     {
+        return $this->loginPipeline($request)->then(function ($request) {
+            return app(LoginResponse::class);
+        });
+    }
+
+    /**
+     * Get the authentication pipeline instance.
+     *
+     * @param  \Laravel\Fortify\Http\Requests\LoginRequest  $request
+     * @return \Illuminate\Pipeline\Pipeline
+     */
+    protected function loginPipeline(LoginRequest $request)
+    {
+        if (Fortify::$loginThroughCallback) {
+            return (new Pipeline(app()))->send($request)->through(array_filter(
+                call_user_func(Fortify::$loginThroughCallback, $request)
+            ));
+        }
+
+        if (is_array(config('fortify.pipelines.login'))) {
+            return (new Pipeline(app()))->send($request)->through(array_filter(
+                config('fortify.pipelines.login')
+            ));
+        }
+
         return (new Pipeline(app()))->send($request)->through(array_filter([
             config('fortify.limiters.login') ? null : EnsureLoginIsNotThrottled::class,
             RedirectIfTwoFactorAuthenticatable::class,
             AttemptToAuthenticate::class,
             PrepareAuthenticatedSession::class,
-        ]))->then(function ($request) {
-            return app(LoginResponse::class);
-        });
+        ]));
     }
 
     /**