feat: rustls-0.21. quinn (and hence h3-quinn) do not support rustls-0.21 yet.

This commit is contained in:
Jun Kurihara 2023-04-03 12:42:03 +09:00
commit d9868442c5
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6 changed files with 595 additions and 7 deletions

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h3-quinn/Cargo.toml Normal file
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[package]
name = "h3-quinn"
version = "0.0.1"
rust-version = "1.59"
authors = ["Jean-Christophe BEGUE <jc.begue@pm.me>"]
edition = "2018"
documentation = "https://docs.rs/h3-quinn"
repository = "https://github.com/hyperium/h3"
readme = "../README.md"
description = "QUIC transport implementation based on Quinn."
keywords = ["http3", "quic", "h3"]
categories = ["network-programming", "web-programming"]
license = "MIT"
[dependencies]
h3 = { version = "0.0.1", path = "../h3/h3" }
bytes = "1"
quinn = { path = "../quinn/quinn/", default-features = false }
quinn-proto = { path = "../quinn/quinn-proto/", default-features = false }
tokio-util = { version = "0.7.7" }
futures = { version = "0.3.27" }

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h3-quinn/src/lib.rs Normal file
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//! QUIC Transport implementation with Quinn
//!
//! This module implements QUIC traits with Quinn.
#![deny(missing_docs)]
use std::{
convert::TryInto,
fmt::{self, Display},
future::Future,
sync::Arc,
task::{self, Poll},
};
use bytes::{Buf, Bytes};
use futures::{
ready,
stream::{self, BoxStream},
StreamExt,
};
pub use quinn::{
self, crypto::Session, AcceptBi, AcceptUni, Endpoint, OpenBi, OpenUni, VarInt, WriteError,
};
use h3::quic::{self, Error, StreamId, WriteBuf};
use tokio_util::sync::ReusableBoxFuture;
/// A QUIC connection backed by Quinn
///
/// Implements a [`quic::Connection`] backed by a [`quinn::Connection`].
pub struct Connection {
conn: quinn::Connection,
incoming_bi: BoxStream<'static, <AcceptBi<'static> as Future>::Output>,
opening_bi: Option<BoxStream<'static, <OpenBi<'static> as Future>::Output>>,
incoming_uni: BoxStream<'static, <AcceptUni<'static> as Future>::Output>,
opening_uni: Option<BoxStream<'static, <OpenUni<'static> as Future>::Output>>,
}
impl Connection {
/// Create a [`Connection`] from a [`quinn::NewConnection`]
pub fn new(conn: quinn::Connection) -> Self {
Self {
conn: conn.clone(),
incoming_bi: Box::pin(stream::unfold(conn.clone(), |conn| async {
Some((conn.accept_bi().await, conn))
})),
opening_bi: None,
incoming_uni: Box::pin(stream::unfold(conn, |conn| async {
Some((conn.accept_uni().await, conn))
})),
opening_uni: None,
}
}
}
/// The error type for [`Connection`]
///
/// Wraps reasons a Quinn connection might be lost.
#[derive(Debug)]
pub struct ConnectionError(quinn::ConnectionError);
impl std::error::Error for ConnectionError {}
impl fmt::Display for ConnectionError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.0.fmt(f)
}
}
impl Error for ConnectionError {
fn is_timeout(&self) -> bool {
matches!(self.0, quinn::ConnectionError::TimedOut)
}
fn err_code(&self) -> Option<u64> {
match self.0 {
quinn::ConnectionError::ApplicationClosed(quinn_proto::ApplicationClose {
error_code,
..
}) => Some(error_code.into_inner()),
_ => None,
}
}
}
impl From<quinn::ConnectionError> for ConnectionError {
fn from(e: quinn::ConnectionError) -> Self {
Self(e)
}
}
impl<B> quic::Connection<B> for Connection
where
B: Buf,
{
type SendStream = SendStream<B>;
type RecvStream = RecvStream;
type BidiStream = BidiStream<B>;
type OpenStreams = OpenStreams;
type Error = ConnectionError;
fn poll_accept_bidi(
&mut self,
cx: &mut task::Context<'_>,
) -> Poll<Result<Option<Self::BidiStream>, Self::Error>> {
let (send, recv) = match ready!(self.incoming_bi.poll_next_unpin(cx)) {
Some(x) => x?,
None => return Poll::Ready(Ok(None)),
};
Poll::Ready(Ok(Some(Self::BidiStream {
send: Self::SendStream::new(send),
recv: Self::RecvStream::new(recv),
})))
}
fn poll_accept_recv(
&mut self,
cx: &mut task::Context<'_>,
) -> Poll<Result<Option<Self::RecvStream>, Self::Error>> {
let recv = match ready!(self.incoming_uni.poll_next_unpin(cx)) {
Some(x) => x?,
None => return Poll::Ready(Ok(None)),
};
Poll::Ready(Ok(Some(Self::RecvStream::new(recv))))
}
fn poll_open_bidi(
&mut self,
cx: &mut task::Context<'_>,
) -> Poll<Result<Self::BidiStream, Self::Error>> {
if self.opening_bi.is_none() {
self.opening_bi = Some(Box::pin(stream::unfold(self.conn.clone(), |conn| async {
Some((conn.clone().open_bi().await, conn))
})));
}
let (send, recv) =
ready!(self.opening_bi.as_mut().unwrap().poll_next_unpin(cx)).unwrap()?;
Poll::Ready(Ok(Self::BidiStream {
send: Self::SendStream::new(send),
recv: Self::RecvStream::new(recv),
}))
}
fn poll_open_send(
&mut self,
cx: &mut task::Context<'_>,
) -> Poll<Result<Self::SendStream, Self::Error>> {
if self.opening_uni.is_none() {
self.opening_uni = Some(Box::pin(stream::unfold(self.conn.clone(), |conn| async {
Some((conn.open_uni().await, conn))
})));
}
let send = ready!(self.opening_uni.as_mut().unwrap().poll_next_unpin(cx)).unwrap()?;
Poll::Ready(Ok(Self::SendStream::new(send)))
}
fn opener(&self) -> Self::OpenStreams {
OpenStreams {
conn: self.conn.clone(),
opening_bi: None,
opening_uni: None,
}
}
fn close(&mut self, code: h3::error::Code, reason: &[u8]) {
self.conn.close(
VarInt::from_u64(code.value()).expect("error code VarInt"),
reason,
);
}
}
/// Stream opener backed by a Quinn connection
///
/// Implements [`quic::OpenStreams`] using [`quinn::Connection`],
/// [`quinn::OpenBi`], [`quinn::OpenUni`].
pub struct OpenStreams {
conn: quinn::Connection,
opening_bi: Option<BoxStream<'static, <OpenBi<'static> as Future>::Output>>,
opening_uni: Option<BoxStream<'static, <OpenUni<'static> as Future>::Output>>,
}
impl<B> quic::OpenStreams<B> for OpenStreams
where
B: Buf,
{
type RecvStream = RecvStream;
type SendStream = SendStream<B>;
type BidiStream = BidiStream<B>;
type Error = ConnectionError;
fn poll_open_bidi(
&mut self,
cx: &mut task::Context<'_>,
) -> Poll<Result<Self::BidiStream, Self::Error>> {
if self.opening_bi.is_none() {
self.opening_bi = Some(Box::pin(stream::unfold(self.conn.clone(), |conn| async {
Some((conn.open_bi().await, conn))
})));
}
let (send, recv) =
ready!(self.opening_bi.as_mut().unwrap().poll_next_unpin(cx)).unwrap()?;
Poll::Ready(Ok(Self::BidiStream {
send: Self::SendStream::new(send),
recv: Self::RecvStream::new(recv),
}))
}
fn poll_open_send(
&mut self,
cx: &mut task::Context<'_>,
) -> Poll<Result<Self::SendStream, Self::Error>> {
if self.opening_uni.is_none() {
self.opening_uni = Some(Box::pin(stream::unfold(self.conn.clone(), |conn| async {
Some((conn.open_uni().await, conn))
})));
}
let send = ready!(self.opening_uni.as_mut().unwrap().poll_next_unpin(cx)).unwrap()?;
Poll::Ready(Ok(Self::SendStream::new(send)))
}
fn close(&mut self, code: h3::error::Code, reason: &[u8]) {
self.conn.close(
VarInt::from_u64(code.value()).expect("error code VarInt"),
reason,
);
}
}
impl Clone for OpenStreams {
fn clone(&self) -> Self {
Self {
conn: self.conn.clone(),
opening_bi: None,
opening_uni: None,
}
}
}
/// Quinn-backed bidirectional stream
///
/// Implements [`quic::BidiStream`] which allows the stream to be split
/// into two structs each implementing one direction.
pub struct BidiStream<B>
where
B: Buf,
{
send: SendStream<B>,
recv: RecvStream,
}
impl<B> quic::BidiStream<B> for BidiStream<B>
where
B: Buf,
{
type SendStream = SendStream<B>;
type RecvStream = RecvStream;
fn split(self) -> (Self::SendStream, Self::RecvStream) {
(self.send, self.recv)
}
}
impl<B> quic::RecvStream for BidiStream<B>
where
B: Buf,
{
type Buf = Bytes;
type Error = ReadError;
fn poll_data(
&mut self,
cx: &mut task::Context<'_>,
) -> Poll<Result<Option<Self::Buf>, Self::Error>> {
self.recv.poll_data(cx)
}
fn stop_sending(&mut self, error_code: u64) {
self.recv.stop_sending(error_code)
}
}
impl<B> quic::SendStream<B> for BidiStream<B>
where
B: Buf,
{
type Error = SendStreamError;
fn poll_ready(&mut self, cx: &mut task::Context<'_>) -> Poll<Result<(), Self::Error>> {
self.send.poll_ready(cx)
}
fn poll_finish(&mut self, cx: &mut task::Context<'_>) -> Poll<Result<(), Self::Error>> {
self.send.poll_finish(cx)
}
fn reset(&mut self, reset_code: u64) {
self.send.reset(reset_code)
}
fn send_data<D: Into<WriteBuf<B>>>(&mut self, data: D) -> Result<(), Self::Error> {
self.send.send_data(data)
}
fn id(&self) -> StreamId {
self.send.id()
}
}
/// Quinn-backed receive stream
///
/// Implements a [`quic::RecvStream`] backed by a [`quinn::RecvStream`].
pub struct RecvStream {
stream: Option<quinn::RecvStream>,
read_chunk_fut: ReadChunkFuture,
}
type ReadChunkFuture = ReusableBoxFuture<
'static,
(
quinn::RecvStream,
Result<Option<quinn::Chunk>, quinn::ReadError>,
),
>;
impl RecvStream {
fn new(stream: quinn::RecvStream) -> Self {
Self {
stream: Some(stream),
// Should only allocate once the first time it's used
read_chunk_fut: ReusableBoxFuture::new(async { unreachable!() }),
}
}
}
impl quic::RecvStream for RecvStream {
type Buf = Bytes;
type Error = ReadError;
fn poll_data(
&mut self,
cx: &mut task::Context<'_>,
) -> Poll<Result<Option<Self::Buf>, Self::Error>> {
if let Some(mut stream) = self.stream.take() {
self.read_chunk_fut.set(async move {
let chunk = stream.read_chunk(usize::MAX, true).await;
(stream, chunk)
})
};
let (stream, chunk) = ready!(self.read_chunk_fut.poll(cx));
self.stream = Some(stream);
Poll::Ready(Ok(chunk?.map(|c| c.bytes)))
}
fn stop_sending(&mut self, error_code: u64) {
self.stream
.as_mut()
.unwrap()
.stop(VarInt::from_u64(error_code).expect("invalid error_code"))
.ok();
}
}
/// The error type for [`RecvStream`]
///
/// Wraps errors that occur when reading from a receive stream.
#[derive(Debug)]
pub struct ReadError(quinn::ReadError);
impl std::error::Error for ReadError {}
impl fmt::Display for ReadError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.0.fmt(f)
}
}
impl From<ReadError> for Arc<dyn Error> {
fn from(e: ReadError) -> Self {
Arc::new(e)
}
}
impl From<quinn::ReadError> for ReadError {
fn from(e: quinn::ReadError) -> Self {
Self(e)
}
}
impl Error for ReadError {
fn is_timeout(&self) -> bool {
matches!(
self.0,
quinn::ReadError::ConnectionLost(quinn::ConnectionError::TimedOut)
)
}
fn err_code(&self) -> Option<u64> {
match self.0 {
quinn::ReadError::ConnectionLost(quinn::ConnectionError::ApplicationClosed(
quinn_proto::ApplicationClose { error_code, .. },
)) => Some(error_code.into_inner()),
quinn::ReadError::Reset(error_code) => Some(error_code.into_inner()),
_ => None,
}
}
}
/// Quinn-backed send stream
///
/// Implements a [`quic::SendStream`] backed by a [`quinn::SendStream`].
pub struct SendStream<B: Buf> {
stream: Option<quinn::SendStream>,
writing: Option<WriteBuf<B>>,
write_fut: WriteFuture,
}
type WriteFuture =
ReusableBoxFuture<'static, (quinn::SendStream, Result<usize, quinn::WriteError>)>;
impl<B> SendStream<B>
where
B: Buf,
{
fn new(stream: quinn::SendStream) -> SendStream<B> {
Self {
stream: Some(stream),
writing: None,
write_fut: ReusableBoxFuture::new(async { unreachable!() }),
}
}
}
impl<B> quic::SendStream<B> for SendStream<B>
where
B: Buf,
{
type Error = SendStreamError;
fn poll_ready(&mut self, cx: &mut task::Context<'_>) -> Poll<Result<(), Self::Error>> {
if let Some(ref mut data) = self.writing {
while data.has_remaining() {
if let Some(mut stream) = self.stream.take() {
let chunk = data.chunk().to_owned(); // FIXME - avoid copy
self.write_fut.set(async move {
let ret = stream.write(&chunk).await;
(stream, ret)
});
}
let (stream, res) = ready!(self.write_fut.poll(cx));
self.stream = Some(stream);
match res {
Ok(cnt) => data.advance(cnt),
Err(err) => {
return Poll::Ready(Err(SendStreamError::Write(err)));
}
}
}
}
self.writing = None;
Poll::Ready(Ok(()))
}
fn poll_finish(&mut self, cx: &mut task::Context<'_>) -> Poll<Result<(), Self::Error>> {
self.stream
.as_mut()
.unwrap()
.poll_finish(cx)
.map_err(Into::into)
}
fn reset(&mut self, reset_code: u64) {
let _ = self
.stream
.as_mut()
.unwrap()
.reset(VarInt::from_u64(reset_code).unwrap_or(VarInt::MAX));
}
fn send_data<D: Into<WriteBuf<B>>>(&mut self, data: D) -> Result<(), Self::Error> {
if self.writing.is_some() {
return Err(Self::Error::NotReady);
}
self.writing = Some(data.into());
Ok(())
}
fn id(&self) -> StreamId {
self.stream
.as_ref()
.unwrap()
.id()
.0
.try_into()
.expect("invalid stream id")
}
}
/// The error type for [`SendStream`]
///
/// Wraps errors that can happen writing to or polling a send stream.
#[derive(Debug)]
pub enum SendStreamError {
/// Errors when writing, wrapping a [`quinn::WriteError`]
Write(WriteError),
/// Error when the stream is not ready, because it is still sending
/// data from a previous call
NotReady,
}
impl std::error::Error for SendStreamError {}
impl Display for SendStreamError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{:?}", self)
}
}
impl From<WriteError> for SendStreamError {
fn from(e: WriteError) -> Self {
Self::Write(e)
}
}
impl Error for SendStreamError {
fn is_timeout(&self) -> bool {
matches!(
self,
Self::Write(quinn::WriteError::ConnectionLost(
quinn::ConnectionError::TimedOut
))
)
}
fn err_code(&self) -> Option<u64> {
match self {
Self::Write(quinn::WriteError::Stopped(error_code)) => Some(error_code.into_inner()),
Self::Write(quinn::WriteError::ConnectionLost(
quinn::ConnectionError::ApplicationClosed(quinn_proto::ApplicationClose {
error_code,
..
}),
)) => Some(error_code.into_inner()),
_ => None,
}
}
}
impl From<SendStreamError> for Arc<dyn Error> {
fn from(e: SendStreamError) -> Self {
Arc::new(e)
}
}