feat: add actix with rustls

actix_rustls/src/main.rs

@@ -0,0 +1,36 @@
+use std::sync::Arc;
+use rustls::ClientHello;
+use rustls::NoClientAuth;
+use rustls::ServerConfig;
+use rustls::ResolvesServerCert;
+use rustls::sign::CertifiedKey;
+use actix_web::App;
+use actix_web::HttpServer;
+use actix_web::get;
+use actix_web::Responder;
+
+struct CustomResolvesServerCert;
+impl ResolvesServerCert for CustomResolvesServerCert {
+    fn resolve(&self, client_hello: ClientHello) -> Option<CertifiedKey> {
+        println!("Request server name: {:?}", client_hello.server_name());
+        None
+    }
+}
+
+#[get("/")]
+async fn index() -> impl Responder {
+    format!("Hello world!")
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    let mut config = ServerConfig::new(NoClientAuth::new());
+    config.cert_resolver = Arc::new(CustomResolvesServerCert);
+
+    let listen = "127.0.0.1:8443";
+    println!("Listen at: {}", listen);
+    HttpServer::new(|| App::new().service(index))
+        .bind_rustls(listen, config)?
+        .run()
+        .await
+}