How to use the Hyperf framework for access control

How to use the Hyperf framework for access control

Access control is a very important function in web applications. Through access control, we can limit users' access rights to different resources and improve system security. In the Hyperf framework, we can use middleware to implement access control.

This article will introduce how to use middleware for access control in the Hyperf framework and provide specific code examples.

1. Create middleware

First, we need to create a middleware to implement access control. In the Hyperf framework, middleware is a callable class that implements the HyperfHttpServerContractMiddlewareInterface interface.

We can use the following command to quickly generate a middleware:

php bin/hyperf.php gen:middleware AccessControlMiddleware

The generated middleware file is located in app/Middleware/AccessControlMiddleware.php, where we can add access Control logic.

2. Configure the middleware

Next, we need to configure the middleware in the application’s configuration file config/autoload/middleware.php. We need to add the middleware to the global middleware or the middleware group of the specified route.

For example, if we want to add middleware to global middleware, we can add the following code in config/autoload/middleware.php:

return [
    'http' => [
        HyperfValidationMiddlewareValidationMiddleware::class,
        AppMiddlewareAccessControlMiddleware::class,
    ],
];

3. Definition Access control rules

We can define access control rules in middleware. Here is a sample middleware that demonstrates how to implement access control in middleware:

<?php

declare(strict_types=1);

namespace AppMiddleware;

use HyperfHttpServerContractRequestInterface;
use PsrHttpMessageResponseInterface;
use PsrHttpServerMiddlewareInterface;
use PsrHttpMessageServerRequestInterface;
use PsrHttpServerRequestHandlerInterface;

class AccessControlMiddleware implements MiddlewareInterface
{
    /**
     * @var RequestInterface
     */
    protected $request;

    public function __construct(RequestInterface $request)
    {
        $this->request = $request;
    }

    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        // 检查用户权限
        $user = $this->request->getAttribute('user');
        if ($user && $user->hasPermission('access_admin')) {
            return $handler->handle($request);
        }

        // 返回没有权限的错误页面
        $response = new HyperfHttpMessageStreamSwooleStream('Access Denied');
        return $response->withStatus(403);
    }
}

In the above example, we first injected RequestInterface through the constructor so that we can Get the context information of the current request from the file.

In the process method, we check the user's permissions. If the user has permission to access the administrator page, continue processing the request; otherwise, return a 403 error.

4. Using middleware

To use the middleware just created, we need to apply it to the corresponding route or controller method.

For example, we can use middleware in the routing file config/routes.php:

<?php

use HyperfHttpRouterRouter;

Router::get('/', 'AppControllerHomeController@index');
Router::post('/admin', 'AppControllerAdminController@index')->middleware([
    AppMiddlewareAccessControlMiddleware::class,
]);

In the above example, we applied the middleware to On the /admin route.

Summary

By using middleware in the Hyperf framework, we can easily implement access control functions. We can create a custom middleware class to implement the access control logic and configure it to the global middleware or the middleware group of the specified route.

The above is an introduction to how to use the Hyperf framework for access control. I hope it will be helpful to you.

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