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actix-net/examples/basic.rs
2020-03-12 07:13:32 +09:00

78 lines
2.6 KiB
Rust

//! simple composite service
//! build: cargo run --example basic --features "ssl"
//! to test: curl https://127.0.0.1:8443/ -k
use std::sync::{
atomic::{AtomicUsize, Ordering},
Arc,
};
use std::{env, fmt, io};
use actix_codec::{AsyncRead, AsyncWrite};
use actix_rt::System;
use actix_server::{Io, Server};
use actix_service::{service_fn, NewService};
use futures_util::{future, Future};
use openssl::ssl::{SslAcceptor, SslFiletype, SslMethod};
use tokio_openssl::SslAcceptorExt;
/// Simple logger service, it just prints fact of the new connections
fn logger<T: AsyncRead + AsyncWrite + fmt::Debug>(
stream: T,
) -> impl Future<Item = T, Error = ()> {
println!("New connection: {:?}", stream);
future::ok(stream)
}
fn main() -> io::Result<()> {
env::set_var("RUST_LOG", "actix_net=trace");
env_logger::init();
let sys = System::new("test");
// load ssl keys
let mut builder = SslAcceptor::mozilla_intermediate(SslMethod::tls()).unwrap();
builder
.set_private_key_file("./examples/key.pem", SslFiletype::PEM)
.unwrap();
builder
.set_certificate_chain_file("./examples/cert.pem")
.unwrap();
let acceptor = builder.build();
let num = Arc::new(AtomicUsize::new(0));
// bind socket address and start workers. By default server uses number of
// available logical cpu as threads count. actix net start separate
// instances of service pipeline in each worker.
Server::build()
.bind(
// configure service pipeline
"basic",
"0.0.0.0:8443",
move || {
let num = num.clone();
let acceptor = acceptor.clone();
// service for converting incoming TcpStream to a SslStream<TcpStream>
service_fn(move |stream: Io<tokio_tcp::TcpStream>| {
SslAcceptorExt::accept_async(&acceptor, stream.into_parts().0)
.map_err(|e| println!("Openssl error: {}", e))
})
// .and_then() combinator uses other service to convert incoming `Request` to a
// `Response` and then uses that response as an input for next
// service. in this case, on success we use `logger` service
.and_then(logger)
// Next service counts number of connections
.and_then(move |_| {
let num = num.fetch_add(1, Ordering::Relaxed);
println!("got ssl connection {:?}", num);
future::ok(())
})
},
)
.unwrap()
.start();
sys.run()
}