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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use futures::StreamExt;
use h2;
use hyper::header::HeaderName;
use hyper::header::HeaderValue;
use rustls_tokio_stream::TlsStream;
use tokio::net::TcpStream;
use tokio::task::LocalSet;
use super::get_tcp_listener_stream;
use super::get_tls_listener_stream;
use super::SupportedHttpVersions;
pub async fn h2_grpc_server(h2_grpc_port: u16, h2s_grpc_port: u16) {
let mut tcp = get_tcp_listener_stream("grpc", h2_grpc_port).await;
let mut tls = get_tls_listener_stream(
"grpc (tls)",
h2s_grpc_port,
SupportedHttpVersions::Http2Only,
)
.await;
async fn serve(socket: TcpStream) -> Result<(), anyhow::Error> {
let mut connection = h2::server::handshake(socket).await?;
while let Some(result) = connection.accept().await {
let (request, respond) = result?;
tokio::spawn(async move {
let _ = handle_request(request, respond).await;
});
}
Ok(())
}
async fn serve_tls(socket: TlsStream) -> Result<(), anyhow::Error> {
let mut connection = h2::server::handshake(socket).await?;
while let Some(result) = connection.accept().await {
let (request, respond) = result?;
tokio::spawn(async move {
let _ = handle_request(request, respond).await;
});
}
Ok(())
}
async fn handle_request(
mut request: hyper::Request<h2::RecvStream>,
mut respond: h2::server::SendResponse<bytes::Bytes>,
) -> Result<(), anyhow::Error> {
let body = request.body_mut();
while let Some(data) = body.data().await {
let data = data?;
let _ = body.flow_control().release_capacity(data.len());
}
let maybe_recv_trailers = body.trailers().await?;
let response = hyper::Response::new(());
let mut send = respond.send_response(response, false)?;
send.send_data(bytes::Bytes::from_static(b"hello "), false)?;
send.send_data(bytes::Bytes::from_static(b"world\n"), false)?;
let mut trailers = hyper::HeaderMap::new();
trailers.insert(
HeaderName::from_static("abc"),
HeaderValue::from_static("def"),
);
trailers.insert(
HeaderName::from_static("opr"),
HeaderValue::from_static("stv"),
);
if let Some(recv_trailers) = maybe_recv_trailers {
for (key, value) in recv_trailers {
trailers.insert(key.unwrap(), value);
}
}
send.send_trailers(trailers)?;
Ok(())
}
let local_set = LocalSet::new();
local_set.spawn_local(async move {
while let Some(Ok(tcp)) = tcp.next().await {
tokio::spawn(async move {
let _ = serve(tcp).await;
});
}
});
local_set.spawn_local(async move {
while let Some(Ok(tls)) = tls.next().await {
tokio::spawn(async move {
let _ = serve_tls(tls).await;
});
}
});
local_set.await;
}
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