IpGatewayMiddleware.php

<?php

namespace Vcian\LaravelIpGateway\Middleware;

use Closure;
use Illuminate\Support\Facades\Log;

/**
 * Class IpGatewayMiddleware
 *
 * @package LaravelIpGateway\Middleware
 */
class IpGatewayMiddleware
{
    /**
     * @var
     */
    protected $ipList;

    /**
     * Handle an incoming request.
     *
     * @param $request
     * @param Closure $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        try {
            $prohibitRequest = false;
            $getClientIps = $request->getClientIps();
            $enableBlacklist = config('ip-gateway.enable_blacklist') === true;
            $redirectRoute = config('ip-gateway.redirect_route_to');

            if (config('ip-gateway.enable_package') === true) {  // Check if package status is enable.
                foreach ($getClientIps as $ip) {
                    if ($enableBlacklist && $this->grantIpAddress($ip)) { // Its check blacklisted ip-addresses from ip-config file.
                        $prohibitRequest = true;
                        Log::warning($ip . ' IP address has tried to access.');
                    } elseif (!$enableBlacklist && !$this->grantIpAddress($ip)) { // Its check whitelisted ip-addresses from ip-config file.
                        $prohibitRequest = true;
                        Log::warning($ip . ' IP address has tried to access.');
                    }
                }

                if ($prohibitRequest) {
                    return redirect($redirectRoute != '' ? $redirectRoute : '/404');
                }
            }

            return $next($request);

        } catch (\Exception $ex) {
            Log::error('Problem occurred while handle an incoming request '.$ex->getMessage());
            return redirect('/404');
        }
    }

    /**
     * Grant IP address
     *
     * @param string $ip
     * @return bool
     */
    protected function grantIpAddress(string $ip) : bool
    {
        return in_array($ip, config('ip-gateway.ip-list'));
    }
}