async-tls 0.11.0

Asynchronous TLS/SSL streams using Rustls.
Documentation 
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use crate::{client::TlsStream, TlsConnector};
use async_std::net::TcpStream;
use async_std::sync::Arc;
use futures_executor::block_on;
use futures_util::io::{AsyncReadExt, AsyncWriteExt};
use rustls::ClientConfig;
use std::io;
use std::net::ToSocketAddrs;

async fn get(
    config: Arc<ClientConfig>,
    domain: &str,
    rtt0: bool,
) -> io::Result<(TlsStream<TcpStream>, String)> {
    let connector = TlsConnector::from(config).early_data(rtt0);
    let input = format!("GET / HTTP/1.0\r\nHost: {}\r\n\r\n", domain);

    let addr = (domain, 443).to_socket_addrs()?.next().unwrap();
    let mut buf = Vec::new();

    let stream = TcpStream::connect(&addr).await?;
    let mut stream = connector.connect(domain, stream).await?;
    stream.write_all(input.as_bytes()).await?;
    stream.read_to_end(&mut buf).await?;

    Ok((stream, String::from_utf8(buf).unwrap()))
}

#[test]
fn test_0rtt() {
    let mut config = ClientConfig::new();
    config
        .root_store
        .add_server_trust_anchors(&webpki_roots::TLS_SERVER_ROOTS);
    config.enable_early_data = true;
    let config = Arc::new(config);
    let domain = "mozilla-modern.badssl.com";

    let (_, output) = block_on(get(config.clone(), domain, false)).unwrap();
    assert!(output.contains("<title>mozilla-modern.badssl.com</title>"));

    let (io, output) = block_on(get(config.clone(), domain, true)).unwrap();
    assert!(output.contains("<title>mozilla-modern.badssl.com</title>"));

    assert_eq!(io.early_data.0, 0);
}