JWT/LARAVEL令牌已过期

Question

我开发了一个API，但令牌过期时遇到问题，我试图找到刷新API发送的令牌的方法，但一无所获这是我的用户mdoal：

<?php
namespace App;

use TymonJWTAuthContractsJWTSubject;
use IlluminateNotificationsNotifiable;
use IlluminateFoundationAuthUser as Authenticatable;
class User extends Authenticatable implements JWTSubject
{
    use Notifiable;
    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'name', 'email', 'password','username','lastname','tel','tel',
    ];
    /**
     * The attributes that should be hidden for arrays.
     *
     * @var array
     */
    protected $hidden = [
        'password', 'remember_token',
    ];
    public function getJWTIdentifier()
    {
        return $this->getKey();
    }
    /**
     * Return a key value array, containing any custom claims to be added to the JWT.
     *
     * @return array
     */
    public function getJWTCustomClaims()
    {
        return [];
    }
}

这是我的登录控制器

<?php
namespace AppHttpControllers;
use IlluminateHttpRequest;
use IlluminateSupportFacadesAuth;
use AppHttpControllersController;
use AppUser;
use JWTFactory;
use JWTAuth;
use Validator;

class APILoginController extends Controller
{
    //

    public function login( Request $request){
        $validator = Validator::make($request -> all(),[
         'email' => 'required|string|email|max:255',
         'password'=> 'required'
        ]);
        if ($validator -> fails()) {
            # code...
            return response()->json($validator->errors());
        }

        $credentials = $request->all('email','password');
        try{
            if (! $token = JWTAuth::attempt( $credentials) ) {
                # code...
                return response()->json( ['error'=> 'invalid username and password'],401);
            }
        }catch(JWTException $e){
          return response()->json( ['error'=> 'could not create token'],500);
        }
        $currentUser = Auth::user();
        return response()->json( ['user'=> $currentUser,'token'=>compact('token')],200);
        ///return response()->json( compact('token'));
    }
}

我在github中找到了一个创建自定义中间件的解决方案，当令牌过期时，刷新的令牌会添加到响应标头中。应用只需要搜索响应是否具有此内容，如果是，请更新保存的令牌。

<?php
namespace AppHttpMiddleware;
use Closure;
use IlluminateSupportFacadesAuth;
class RedirectIfAuthenticated
{
    /**
     * Handle an incoming request.
     *
     * @param  IlluminateHttpRequest  $request
     * @param  Closure  $next
     * @param  string|null  $guard
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        try
        {
            if (! $user = JWTAuth::parseToken()->authenticate() )
            {
                return response()->json([
                    'code'   => 101, // means auth error in the api,
                   'response' => null // nothing to show
                 ]);
            }
        }
        catch (TokenExpiredException $e)
        {
            // If the token is expired, then it will be refreshed and added to the headers
            try
            {
                $refreshed = JWTAuth::refresh(JWTAuth::getToken());
                $user = JWTAuth::setToken($refreshed)->toUser();
                header('Authorization: Bearer ' . $refreshed);
            }
            catch (JWTException $e)
            {
                return response()->json([
                    'code'   => 103, // means not refreshable
                   'response' => null // nothing to show
                 ]);
            }
        }
        catch (JWTException $e)
        {
            return response()->json([
                'code'   => 101 ,//, means auth error in the api,
                   'response' => null // nothing to show
            ]);
        }
        // Login the user instance for global usage
        Auth::login($user, false);
        return  $next($request);
    }
}

Answer 1

所以你正在使用普通的PHP方法来设置Laravel中间件中的标头，这是行不通的。

你应该检查一下：https://github.com/tymondesigns/jwt-auth/blob/develop/src/Http/Middleware/BaseMiddleware.php

https://github.com/tymondesigns/jwt-auth/blob/develop/src/Http/Middleware/RefreshToken.php

基本上，更改：

header('Authorization: Bearer ' . $refreshed);

自

$response = $next($request);
$response->headers->set('Authorization', 'Bearer '.$token);

事情如下，这种 aproach 不会按预期工作，因为这种"AfterMiddleware"在请求通过您的应用程序后执行。所以：

1. 用户使用过期的令牌发出请求
2. 由于令牌过期，应用将返回 403 或 401(不记得了(。
3. 但是，响应将包含带有新令牌的标头
4. 您使用新令牌发出相同的请求，它应该可以工作。