//! This example shows how to use `actix_web::HttpServer::on_connect` to access a lower-level socket //! properties and pass them to a handler through request-local data. //! //! For an example of extracting a client TLS certificate, see: //! use std::{any::Any, io, net::SocketAddr}; use actix_web::{ dev::Extensions, rt::net::TcpStream, web, App, HttpRequest, HttpResponse, HttpServer, Responder, }; #[allow(dead_code)] #[derive(Debug, Clone)] struct ConnectionInfo { bind: SocketAddr, peer: SocketAddr, ttl: Option, } async fn route_whoami(req: HttpRequest) -> impl Responder { match req.conn_data::() { Some(info) => HttpResponse::Ok().body(format!( "Here is some info about your connection:\n\n{:#?}", info )), None => { HttpResponse::InternalServerError().body("Missing expected request extension data") } } } fn get_conn_info(connection: &dyn Any, data: &mut Extensions) { if let Some(sock) = connection.downcast_ref::() { data.insert(ConnectionInfo { bind: sock.local_addr().unwrap(), peer: sock.peer_addr().unwrap(), ttl: sock.ttl().ok(), }); } else { unreachable!("connection should only be plaintext since no TLS is set up"); } } #[actix_web::main] async fn main() -> io::Result<()> { env_logger::init_from_env(env_logger::Env::new().default_filter_or("info")); let bind = ("127.0.0.1", 8080); log::info!("staring server at http://{}:{}", &bind.0, &bind.1); HttpServer::new(|| App::new().default_service(web::to(route_whoami))) .on_connect(get_conn_info) .bind(bind)? .workers(1) .run() .await }