Slim v3 Using Custom Class to add Middleware - php

Question

I want to add Middleware to my Slim project that checks the ip of the user before allowing them access.
My middleware 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);
}
}
My 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();
I am using a slim skeleton project for my project setup. I get the following error when I run this code.
Fatal error: Class 'IpFilter' not found in
/Applications/XAMPP/xamppfiles/htdocs/slimtest/my-app/public/index.php
on line 34
I still don't properly understand how to add custom classes for middleware in slim. I've seen several tutorials that just make the class and use $app->add('new class) to add the middleware but I can't figure it out. Is there a file I need to update and I am just missing it?
It's been a long weekend with slim and not a lot of resources out there so any help would be greatly appreciated.
UPDATE:
When I remove the namespace App\Middleware from ipfilter.php I don't get the same error. This time I get
Fatal error: Call to undefined method IpFilter::request() in /Applications/XAMPP/xamppfiles/htdocs/slimtest/my-app/app/middleware/ipfilter.php on line 15
Which I understand why but I thought it might help troubleshoot and get to the root of the problem.

Answer 1

Okay, Finally got it to work.
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: Using App\Middleware\Ipfilter in the index.php. I though using require to add the class would be enough but apparently no.
Shout out to codecourse.com, really helped.