✨ Proper gRPC protocol

DysonNetwork.Shared/Http/KestrelConfiguration.cs

@@ -20,8 +20,53 @@ public static class KestrelConfiguration
         builder.WebHost.ConfigureKestrel(options =>
         {
             options.Limits.MaxRequestBodySize = maxRequestBodySize;
+
+            // gRPC
+            options.ListenAnyIP(5001, listenOptions =>
+            {
+                listenOptions.Protocols = HttpProtocols.Http2;
+                
+                var selfSignedCert = _CreateSelfSignedCertificate();
+                listenOptions.UseHttps(selfSignedCert);
+            });
+
+            var httpPorts = configuration.GetValue<string>("HTTP_PORTS", "5000")
+                .Split(',', StringSplitOptions.RemoveEmptyEntries)
+                .Select(p => int.Parse(p.Trim()))
+                .ToArray();
+
+            // Regular HTTP
+            foreach (var httpPort in httpPorts)
+                options.ListenAnyIP(httpPort,
+                    listenOptions => { listenOptions.Protocols = HttpProtocols.Http1AndHttp2; });
         });
 
         return builder;
     }
+    
+    static X509Certificate2 _CreateSelfSignedCertificate()
+    {
+        using var rsa = RSA.Create(2048);
+        var certRequest = new CertificateRequest(
+            "CN=dyson.network", // Common Name for the certificate
+            rsa,
+            HashAlgorithmName.SHA256,
+            RSASignaturePadding.Pkcs1);
+
+        // Add extensions (e.g., for server authentication)
+        certRequest.CertificateExtensions.Add(
+            new X509EnhancedKeyUsageExtension(
+                new OidCollection { new Oid("1.3.6.1.5.5.7.3.1") }, // Server Authentication
+                false));
+
+        // Set validity period (e.g., 1 year)
+        var notBefore = DateTimeOffset.UtcNow.AddDays(-1);
+        var notAfter = notBefore.AddYears(1);
+
+        var certificate = certRequest.CreateSelfSigned(notBefore, notAfter);
+    
+        // Export to PKCS#12 and load using X509CertificateLoader
+        var pfxBytes = certificate.Export(X509ContentType.Pfx);
+        return X509CertificateLoader.LoadPkcs12(pfxBytes, password: null);
+    }
 }