<?php
declare(strict_types=1);
namespace Webfan\Webfat\Module\RdapServer;
use App\Application\Handlers\HttpErrorHandler;
use App\Application\Handlers\ShutdownHandler;
use App\Application\ResponseEmitter\ResponseEmitter;
use DI\ContainerBuilder;
use Slim\Factory\AppFactory;
use Slim\Factory\ServerRequestCreatorFactory;
use frdl\security\floodprotection\FloodProtection;
/**
* @toDo: use libs
*/
class Helper
{
public static $protocoll = 'HTTP/1.1';
public static function sendCorsHeaders(array $allowedOrigins = null, $fallbackOrigin = 'https://invalid.dns.frdl.de') {
// CORS
// Author: Till Wehowski
if(null === $allowedOrigins){
$allowedOrigins = [
"*",
$_SERVER['SERVER_NAME'],
$_SERVER['HTTP_ORIGIN'],
$_SERVER['HTTP_HOST']
];
}
$originRequested = strip_tags(((isset($_SERVER['HTTP_ORIGIN'])) ? $_SERVER['HTTP_ORIGIN'] : "*"));
$origin = (in_array($originRequested, $allowedOrigins)) ? $originRequested : $fallbackOrigin;
header("Access-Control-Allow-Credentials: true");
header("Access-Control-Allow-Origin: ".$origin);
header("Access-Control-Allow-Headers: If-None-Match, X-Requested-With, Origin, X-Frdlweb-Bugs, Etag, X-Forgery-Protection-Token, X-CSRF-Token, X-Frdl-Request-Negotiation");
if (isset($_SERVER['HTTP_ORIGIN'])) {
header('X-Frame-Options: ALLOW-FROM '.$origin);
} else {
header_remove("X-Frame-Options");
}
$expose = array('Etag', 'X-CSRF-Token');
foreach (headers_list() as $num => $header) {
$h = explode(':', $header);
$expose[] = trim($h[0]);
}
header("Access-Control-Expose-Headers: ".implode(',',$expose));
header("Vary: Origin");
}
public static function header($name, $value)
{
return header($name.': '.$value);
}
public static function status($code = 200)
{
if((int)$code == 200)return header(self::$protocoll.' 200 Ok');
if((int)$code == 201)return header(self::$protocoll.' 201 Created');
if((int)$code == 400)return header(self::$protocoll.' 400 Bad Request');
if((int)$code == 401)return header(self::$protocoll.' 401 Unauthorized');
if((int)$code == 403)return header(self::$protocoll.' 403 Forbidden');
if((int)$code == 404)return header(self::$protocoll.' 404 Not Found');
if((int)$code == 409)return header(self::$protocoll.' 409 Conflict');
if((int)$code == 422)return header(self::$protocoll.' 422 Validation Failure');
if((int)$code == 429)return header(self::$protocoll.' 429 Too Many Requests');
if((int)$code == 455)return header(self::$protocoll.' 455 Blocked Due To Misbehavior');
if((int)$code == 500)return header(self::$protocoll.' 500 Internal Server Error');
if((int)$code == 501)return header(self::$protocoll.' 501 Not Implemented');
if((int)$code == 503)return header(self::$protocoll.' 503 Service Unavailable');
if((int)$code == 511)return header(self::$protocoll.' 511 Network Authentication Required');
if(0===intval($code)){
return header(self::$protocoll.' 501 Not Implemented');
}
\trigger_error('status code '.intval($code).' not implemented in \'' . get_class($this) . '\' ' . __METHOD__. ' '.__LINE__, E_USER_ERROR);
}
}
ini_set('display_errors', '0');
require_once __DIR__ . '/../vendor/autoload.php';
//require_once __DIR__.\DIRECTORY_SEPARATOR.'..'.\DIRECTORY_SEPARATOR.'..'.\DIRECTORY_SEPARATOR.'..'.\DIRECTORY_SEPARATOR.'dns.frdl.de'.\DIRECTORY_SEPARATOR.'vendor'.\DIRECTORY_SEPARATOR.'autoload.php';
//\Webfan\Psr4Loader\RemoteFromWebfan::getInstance('frdl.webfan.de', true, 'latest', false);
if(!is_dir(__DIR__ . '/../cache/flood-protection/')){
mkdir(__DIR__ . '/../cache/flood-protection/', 0777, true);
}
if(!is_dir(__DIR__ . '/../cache/container/')){
mkdir(__DIR__ . '/../cache/container/', 0777, true);
}
// Instantiate PHP-DI ContainerBuilder
$containerBuilder = new ContainerBuilder();
if(!is_dir(__DIR__ . '/../cache/container')){
mkdir(__DIR__ . '/../cache/container', 0775, true);
}
//if (false) { // Should be set to true in production
$containerBuilder->enableCompilation(__DIR__ . '/../cache/container');
//}
// Set up settings
$settings = require __DIR__ . '/../app/settings.php';
$settings($containerBuilder);
// Set up dependencies
$dependencies = require __DIR__ . '/../app/dependencies.php';
$dependencies($containerBuilder);
// Build PHP-DI Container instance
$container = $containerBuilder->build();
$FloodProtection = new FloodProtection('rdap', 30, 60, __DIR__ . '/../cache/flood-protection/');
if($_SERVER['REMOTE_ADDR'] !== $_SERVER['SERVER_ADDR']
&& !in_array($_SERVER['REMOTE_ADDR'], ['212.53.140.43', '212.72.182.211'])
&& $FloodProtection->check($_SERVER['REMOTE_ADDR'])
){
header("HTTP/1.1 429 Too Many Requests");
exit("Too Many Requests, try again later!");
}
/*
@ToDO: Prune cache / dependencies loader...
$ShutdownTasks = \frdlweb\Thread\ShutdownTasks::mutex();
$ShutdownTasks(function($container, $FloodProtection, $tempRdapDir, $CacheDir, $maxCacheTime){
@\ignore_user_abort(true);
$container->get('rdap.cache')->prune();
if(is_dir($tempRdapDir)){
// \webfan\hps\patch\Fs::pruneDir($tempRdapDir, $maxCacheTime * 4, true, false);
}
$FloodProtection->prune();
if(is_dir($CacheDir)){
\webfan\hps\patch\Fs::pruneDir($CacheDir, $maxCacheTime, true, false);
}
}, $container, $FloodProtection, __DIR__.'/../cache/rdap/', __DIR__ . '/../cache/flood-protection/', 31 * 24 * 60 * 60);
*/
// Instantiate the app
AppFactory::setContainer($container);
$app = AppFactory::create();
$callableResolver = $app->getCallableResolver();
// Register routes
$routes = require __DIR__ . '/../app/routes.php';
$routes($app);
/** @var bool $displayErrorDetails */
$displayErrorDetails = $container->get('settings')['displayErrorDetails'];
// Create Request object from globals
$serverRequestCreator = ServerRequestCreatorFactory::create();
$request = $serverRequestCreator->createServerRequestFromGlobals();
// Create Error Handler
$responseFactory = $app->getResponseFactory();
$errorHandler = new HttpErrorHandler($callableResolver, $responseFactory);
$errorHandler->setDisplayErrorDetailsFlag($displayErrorDetails);
// Create Shutdown Handler
$shutdownHandler = new ShutdownHandler($request, $errorHandler, $displayErrorDetails);
register_shutdown_function($shutdownHandler);
// Add Routing Middleware
$app->addRoutingMiddleware();
// Add Error Middleware
$errorMiddleware = $app->addErrorMiddleware($displayErrorDetails, false, false);
$errorMiddleware->setDefaultErrorHandler($errorHandler);
Helper::status(200);
Helper::sendCorsHeaders([(isset($_SERVER['HTTP_ORIGIN']))?$_SERVER['HTTP_ORIGIN']:'*'], '*');
// Run App & Emit Response
$response = @$app->handle($request);
Helper::status($response->getStatusCode());
$responseEmitter = new ResponseEmitter();
ob_start(function($c) use($response) {
Helper::sendCorsHeaders([(isset($_SERVER['HTTP_ORIGIN']))?$_SERVER['HTTP_ORIGIN']:'*'], '*');
Helper::status($response->getStatusCode());
return $c;
});
$responseEmitter->emit($response);
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