akamai.rs - mozsearch

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use h2::client;

use http::{Method, Request};

use tokio::net::TcpStream;

use tokio_rustls::TlsConnector;

use tokio_rustls::rustls::{OwnedTrustAnchor, RootCertStore, ServerName};

use std::convert::TryFrom;

use std::error::Error;

use std::net::ToSocketAddrs;

const ALPN_H2: &str = "h2";

#[tokio::main]

pub async fn main() -> Result<(), Box<dyn Error>> {

    let _ = env_logger::try_init();

    let tls_client_config = std::sync::Arc::new({

        let mut root_store = RootCertStore::empty();

        root_store.add_trust_anchors(webpki_roots::TLS_SERVER_ROOTS.iter().map(|ta| {

            OwnedTrustAnchor::from_subject_spki_name_constraints(

                ta.subject,

                ta.spki,

                ta.name_constraints,

        }));

        let mut c = tokio_rustls::rustls::ClientConfig::builder()

            .with_safe_defaults()

            .with_root_certificates(root_store)

            .with_no_client_auth();

        c.alpn_protocols.push(ALPN_H2.as_bytes().to_owned());

});

    // Sync DNS resolution.

    let addr = "http2.akamai.com:443"

        .to_socket_addrs()

        .unwrap()

        .next()

        .unwrap();

    println!("ADDR: {:?}", addr);

    let tcp = TcpStream::connect(&addr).await?;

    let dns_name = ServerName::try_from("http2.akamai.com").unwrap();

    let connector = TlsConnector::from(tls_client_config);

    let res = connector.connect(dns_name, tcp).await;

    let tls = res.unwrap();

        let (_, session) = tls.get_ref();

        let negotiated_protocol = session.alpn_protocol();

        assert_eq!(Some(ALPN_H2.as_bytes()), negotiated_protocol);

    println!("Starting client handshake");

    let (mut client, h2) = client::handshake(tls).await?;

    println!("building request");

    let request = Request::builder()

        .method(Method::GET)

        .uri("https://http2.akamai.com/")

        .body(())

        .unwrap();

    println!("sending request");

    let (response, other) = client.send_request(request, true).unwrap();

    tokio::spawn(async move {

        if let Err(e) = h2.await {

            println!("GOT ERR={:?}", e);

});

    println!("waiting on response : {:?}", other);

    let (_, mut body) = response.await?.into_parts();

    println!("processing body");

    while let Some(chunk) = body.data().await {

        println!("RX: {:?}", chunk?);

    Ok(())