【Laravel】未登入時進入auth頁面，設置登入後轉跳回該頁面

一般會使用 URL::previous() 、 redirect()->intended()

或是靠 session 去處理，

這邊在提供另一個方法！

新增 auth.redirect:web

如果有需求，可以在 $middlewarePriority 調整執行順序！

route/webs.php

Route::group(['middleware' => 'auth.redirect:web', 'auth:web']

app/Http/Kernel.php

protected $routeMiddleware = [
    'auth.redirect' => \App\Http\Middleware\RedirectToAuthenticated::class,
....];

處理未登入狀態，進入auth頁面時

新增 app/Http/Middleware/RedirectToAuthenticated.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class RedirectToAuthenticated
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @param  string|null  ...$guards
     * @return mixed
     */
    public function handle(Request $request, Closure $next, $auth)
    {
        $redirectTo = $_SERVER['REQUEST_URI'];

        if (!Auth::guard($auth)->check()) {
            return redirect(webPath(sprintf('login?redirect=%s', $redirectTo)));
        }

        return $next($request);
    }
}

處理登入後的行為

app/Providers/FortifyServiceProvider.php 的 register() 設置

$this->app->instance(LoginResponse::class, new class implements LoginResponse
{
    public function toResponse($request)
    {
        if ($request->get('redirect', null)) {
            return redirect(webPath($request->get('redirect')));
        }
        return redirect()->route('web.home');
    }
});

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