From 98188de8fd3ac3a7bcd5742afa0e62b4ccb4073e Mon Sep 17 00:00:00 2001
From: roxblnfk <roxblnfk@ya.ru>
Date: Sun, 5 May 2024 17:21:05 +0400
Subject: [PATCH] Frontend: add CORS middleware

---
 src/Application.php               |  1 +
 src/Sender/Frontend/Http/Cors.php | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 src/Sender/Frontend/Http/Cors.php

diff --git a/src/Application.php b/src/Application.php
index 7b0b29fc..1cf8faa1 100644
--- a/src/Application.php
+++ b/src/Application.php
@@ -205,6 +205,7 @@ public function configureFrontend(int $port): void
         $inspector = $this->container->make(Inspector::class, [
             new Traffic\Dispatcher\Http(
                 [
+                    new Sender\Frontend\Http\Cors(),
                     new Sender\Frontend\Http\StaticFiles(),
                     new Sender\Frontend\Http\EventAssets($this->logger, $wsSender->getEventStorage()),
                     new Sender\Frontend\Http\Router($this->logger, $wsSender->getEventStorage()),
diff --git a/src/Sender/Frontend/Http/Cors.php b/src/Sender/Frontend/Http/Cors.php
new file mode 100644
index 00000000..ac5a0c86
--- /dev/null
+++ b/src/Sender/Frontend/Http/Cors.php
@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Buggregator\Trap\Sender\Frontend\Http;
+
+use Buggregator\Trap\Handler\Http\Middleware;
+use Nyholm\Psr7\Response;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+
+/**
+ * @internal
+ * @psalm-internal Buggregator\Trap
+ */
+final class Cors implements Middleware
+{
+    public function handle(ServerRequestInterface $request, callable $next): ResponseInterface
+    {
+        $response = $request->getMethod() === 'OPTIONS'
+            ? new Response(200)
+            : $next($request);
+
+        return $response
+            ->withHeader('Access-Control-Allow-Origin', '*')
+            ->withHeader('Access-Control-Allow-Headers', '*')
+            ->withHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
+    }
+}