//! 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_http::CloneableExtensions; use actix_web::{rt::net::TcpStream, web, App, HttpServer}; #[derive(Debug, Clone)] struct ConnectionInfo { bind: SocketAddr, peer: SocketAddr, ttl: Option, } async fn route_whoami(conn_info: web::ReqData) -> String { format!( "Here is some info about your connection:\n\n{:#?}", conn_info ) } fn get_conn_info(connection: &dyn Any, data: &mut CloneableExtensions) { 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")); HttpServer::new(|| App::new().default_service(web::to(route_whoami))) .on_connect(get_conn_info) .bind(("127.0.0.1", 8080))? .workers(1) .run() .await }