Laravel 5.3 - 内部重定向或修改请求中间件

Question

我正在使用 Laravel 5.3 构建 API。我有/users/1、users/1/teams等路线。

我希望客户端应用程序也能够使用像 /users/self、/users/self/teams 这样的 URI。

我正在研究构建一个中间件，检查 /self/ 是否在请求 URI 中，如果是，则将 /self/ 更改为用户的实际 id，或者对请求的端点进行内部重定向。

关于如何做到这一点的任何想法？

Answer 1

创建中间件并使用它：

1) 创建中间件：

文件：app/Http/Middleware/ReplaceSelfToId.php

<?php namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;

class ReplaceSelfToId
{

    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request $request
     * @param  \Closure $next
     * @return mixed
     */
    public function handle(Request $request, Closure $next)
    {
        if($request->route('id') == 'self') { // if id is self
          if(!$request->user()) { // but user not instantiated
            return redirect()->route('auth'); // redirect to auth
          }
          $request->route()->setParameter('id',  $request->user()->id); // replace id to user's id
        }   
        return $next($request);
    }
}

2) 在Kernel.php注册中间件：

<?php

namespace App\Http;

use App\Http\Middleware\ReplaceSelfToId; // use middleware
use Illuminate\Foundation\Http\Kernel as HttpKernel;

class Kernel extends HttpKernel
{
    /**
     * The application's global HTTP middleware stack.
     *
     * These middleware are run during every request to your application.
     *
     * @var array
     */
    protected $middleware = [
        \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
        \Illuminate\Cookie\Middleware\EncryptCookies::class,
        \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
        \Illuminate\Session\Middleware\StartSession::class,
        \Illuminate\View\Middleware\ShareErrorsFromSession::class,
        ReplaceSelfToId::class   // add this line to end of array (cuz have to get session initialized)
    ];

    /**
     * The application's route middleware groups.
     *
     * @var array
     */
    protected $middlewareGroups = [];

    /**
     * The application's route middleware.
     *
     * These middleware may be assigned to groups or used individually.
     *
     * @var array
     */
    protected $routeMiddleware = [];
}

Answer 2

更改您的请求不是一个很好的做法，您不应该碰它，那么您为什么不直接创建一个用户存储库并在其中执行此操作呢？

<?php

namespace App\Http\Controllers;

class UsersRepository
{
    private $auth;

    public function __construct(Auth $auth)
    {
        $this->auth = $auth;
    }

    public function findById($id)
    {
        if ($id == 'self') {
            return Auth::user();
        }

        return User::find($id);
    }
}

并在你的控制器中使用它

<?php

namespace App\Http\Controllers;

class Games extends BaseController
{
    /**
     * @var UsersRepository
     */
    private $usersRepository;

    public function __construct(UsersRepository $usersRepository)
    {
        $this->usersRepository = $usersRepository;
    }

    public function show($id)
    {
        return view('show', ['user' => $this->usersRepository->findById($id)]);
    }
}