Question

我在cakephp4中使用身份验证（2）插件。我已经设置了：

        'unauthenticatedRedirect' => '/users/login',

以便重定向需要身份验证的请求。很好。

但是我想添加一条消息，例如Flash消息，内容为“您必须登录才能访问此页面”。

有一种简单的方法吗？

谢谢

Answer 1

尚无特定功能： https://github.com/cakephp/authentication/issues/316

可以通过许多不同的方式解决此问题，我个人之前通过将Authentication\Authenticator\UnauthenticatedException捕获在扩展的身份验证组件中，通过覆盖\Authentication\Controller\Component\AuthenticationComponent::doIdentityCheck()来做到这一点：

<?php
// src/Controller/Component/AppAuthenticationComponent.php

/*
load in `AppController::initialize()` via:

$this->loadComponent('Authentication', [
    'className' => \App\Controller\Component\AppAuthenticationComponent::class,
]);
*/

namespace App\Controller\Component;

use Authentication\Authenticator\UnauthenticatedException;
use Authentication\Controller\Component\AuthenticationComponent;
use Cake\Controller\Component\FlashComponent;

/**
 * @property FlashComponent $Flash
 */
class AppAuthenticationComponent extends AuthenticationComponent
{
    public $components = [
        'Flash'
    ];

    protected function doIdentityCheck(): void
    {
        try {
            parent::doIdentityCheck();
        } catch (UnauthenticatedException $exception) {
            $this->Flash->error(__('You must be logged in to access this page.'));

            throw $exception;
        }
    }
}

您还可以在应用程序控制器中手动执行此操作，因为您必须禁用插件组件的自动身份检查，然后自行检查：

// src/Controller/AppController.php

public function initialize(): void
{
    parent::initialize();

    $this->loadComponent('Authentication.Authentication', [
        'requireIdentity' => false
    ]);
}

public function beforeFilter(EventInterface $event)
{
    parent::beforeFilter($event);

    $action = $this->request->getParam('action');
    if (
        !in_array($action, $this->Authentication->getUnauthenticatedActions(), true) &&
        !$this->Authentication->getIdentity()
    ) {
        $this->Flash->error(__('You must be logged in to access this page.'));

        throw new UnauthenticatedException('No identity found.');
    }
}

cakephp 4-身份验证2-未识别时如何显示消息

1 个答案: