Slim v3 使用自定义 Class 添加中间件

Question

我想将中间件添加到我的 Slim 项目中，以便在允许用户访问之前检查用户的 ip。

我的中间件class:

<?php 

namespace App\Middleware;


Class IpFilter
{


protected $request_ip; 
protected $allowed_ip;

public function __construct($allowedip = array('127.0.0.1')) 
{

    $this->request_ip = app()->request()->getIp(); 
    $this->allowed_ip = $allowedip; 
}

public function call() 
{ 
    $checkit = checkIp(); 
    $this->next->call(); 
}

protected function checkIp() 
{ 
    if (!in_array($this->request_ip, $this->allowed_ip)) 
    $app->halt(403); 
}
}

我的 Bootstrap index.php:

<?php

// To help the built-in PHP dev server, check if the request was actually for
// something which should probably be served as a static file
if (PHP_SAPI === 'cli-server' && $_SERVER['SCRIPT_FILENAME'] !== __FILE__) {
    return false;
}

require __DIR__ . '/../vendor/autoload.php';
require '../app/middleware/ipfilter.php';


// Instantiate the app
$settings = require __DIR__ . '/../app/settings.php';
$app = new \Slim\App($settings);


$app->get('/test', function() {
   echo "You look like you're from around here"; 
}); 

// Set up dependencies
require __DIR__ . '/../app/dependencies.php';

// Register middleware
require __DIR__ . '/../app/middleware.php';

// Register routes
require __DIR__ . '/../app/routes.php';


$app->add(new IpFilter); 
// Run
$app->run();

我正在为我的项目设置使用 slim skeleton project。当我运行此代码时出现以下错误。

Fatal error: Class 'IpFilter' not found in
 /Applications/XAMPP/xamppfiles/htdocs/slimtest/my-app/public/index.php 
on line 34

我仍然没有正确理解如何在 slim 中为中间件添加自定义 classes。我看过几个只制作 class 并使用 $app->add('new class) 添加中间件的教程，但我无法弄清楚。是否有我需要更新的文件，我只是错过了它？

这是一个漫长的周末，没有多少资源，所以任何帮助将不胜感激。

更新：

当我从 ipfilter.php 中删除 namespace App\Middleware 时，我没有得到同样的错误。这次我得到

Fatal error: Call to undefined method IpFilter::request() in /Applications/XAMPP/xamppfiles/htdocs/slimtest/my-app/app/middleware/ipfilter.php on line 15

我明白为什么，但我认为这可能有助于解决问题并找到问题的根源。

Answer 1

好的，终于让它工作了。

Index.php

 <?php

// To help the built-in PHP dev server, check if the request was actually for
// something which should probably be served as a static file
if (PHP_SAPI === 'cli-server' && $_SERVER['SCRIPT_FILENAME'] !== __FILE__) {
    return false;
}

use App\Middleware\IpFilter; 

require __DIR__ . '/../vendor/autoload.php';
require __DIR__ . '/../app/middleware/ipfilter.php';



// Instantiate the app
$settings = require __DIR__ . '/../app/settings.php';
$app = new \Slim\App($settings);


$app->get('/test', function() {
   echo "You look like you're from around here"; 
}); 

// Set up dependencies
require __DIR__ . '/../app/dependencies.php';

// Register middleware
require __DIR__ . '/../app/middleware.php';

// Register routes
require __DIR__ . '/../app/routes.php';

$app->add(new IpFilter); 

// Run
$app->run();

ipfilter.php

<?php 

namespace App\Middleware;


Class IpFilter
{

private $whitelist = arrray('127.0.0.1')
protected $request_ip; 

   public function __invoke($request, $response, $next)
  {

    $request_ip = $request->getAttribute('ip_address'); 

    return $next($request, $response); 
 }


   public function call() 
  { 
    $checkit = checkIp(); 
    $this->next->call(); 
   }

    protected function checkIp() 
    { 
    if (!in_array($this->request_ip, $this->whitelist) 
    $app->halt(403); 
   }
}

KEY: 在 index.php 中使用 App\Middleware\Ipfilter。我虽然使用 require 添加 class 就足够了，但显然不行。

向 codecourse.com 大声疾呼，真的很有帮助。

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