Add HTTP/1 and HTTP/2 to axum::serve (#2241)

axum/Cargo.toml

@@ -22,7 +22,7 @@ matched-path = []
 multipart = ["dep:multer"]
 original-uri = []
 query = ["dep:serde_urlencoded"]
-tokio = ["dep:tokio", "hyper/server", "hyper/tcp", "hyper/runtime", "tower/make"]
+tokio = ["dep:tokio", "dep:hyper-util", "hyper/server", "hyper/tcp", "hyper/runtime", "tower/make"]
 tower-log = ["tower/log"]
 tracing = ["dep:tracing", "axum-core/tracing"]
 ws = ["tokio", "dep:tokio-tungstenite", "dep:sha1", "dep:base64"]
@@ -51,12 +51,13 @@ tower-layer = "0.3.2"
 tower-service = "0.3"
 
 # wont need this when axum uses http-body 1.0
-hyper1 = { package = "hyper", version = "=1.0.0-rc.4", features = ["server", "http1"] }
+hyper1 = { package = "hyper", version = "=1.0.0-rc.4", features = ["server", "http1", "http2"] }
 tower-hyper-http-body-compat = { version = "0.2", features = ["server", "http1"] }
 
 # optional dependencies
 axum-macros = { path = "../axum-macros", version = "0.3.7", optional = true }
 base64 = { version = "0.21.0", optional = true }
+hyper-util = { git = "https://github.com/hyperium/hyper-util", rev = "d97181a", features = ["auto"], optional = true }
 multer = { version = "2.0.0", optional = true }
 serde_json = { version = "1.0", features = ["raw_value"], optional = true }
 serde_path_to_error = { version = "0.1.8", optional = true }

axum/src/extract/ws.rs

@@ -92,7 +92,7 @@
 
 use self::rejection::*;
 use super::FromRequestParts;
-use crate::{body::Bytes, hyper1_tokio_io::TokioIo, response::Response, Error};
+use crate::{body::Bytes, response::Response, Error};
 use async_trait::async_trait;
 use axum_core::body::Body;
 use futures_util::{
@@ -104,6 +104,7 @@ use http::{
     request::Parts,
     Method, StatusCode,
 };
+use hyper_util::rt::TokioIo;
 use sha1::{Digest, Sha1};
 use std::{
     borrow::Cow,

axum/src/hyper1_tokio_io.rs

@@ -1,161 +0,0 @@
-// Copied from https://github.com/hyperium/hyper-util/blob/master/src/rt/tokio_io.rs
-
-#![allow(unsafe_code)]
-
-//! Tokio IO integration for hyper
-use hyper1 as hyper;
-use std::{
-    pin::Pin,
-    task::{Context, Poll},
-};
-
-use pin_project_lite::pin_project;
-
-pin_project! {
-    /// A wrapping implementing hyper IO traits for a type that
-    /// implements Tokio's IO traits.
-    #[derive(Debug)]
-    pub(crate) struct TokioIo<T> {
-        #[pin]
-        inner: T,
-    }
-}
-
-impl<T> TokioIo<T> {
-    /// Wrap a type implementing Tokio's IO traits.
-    pub(crate) fn new(inner: T) -> Self {
-        Self { inner }
-    }
-
-    /// Borrow the inner type.
-    pub(crate) fn inner(&self) -> &T {
-        &self.inner
-    }
-}
-
-impl<T> hyper::rt::Read for TokioIo<T>
-where
-    T: tokio::io::AsyncRead,
-{
-    fn poll_read(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-        mut buf: hyper::rt::ReadBufCursor<'_>,
-    ) -> Poll<Result<(), std::io::Error>> {
-        let n = unsafe {
-            let mut tbuf = tokio::io::ReadBuf::uninit(buf.as_mut());
-            match tokio::io::AsyncRead::poll_read(self.project().inner, cx, &mut tbuf) {
-                Poll::Ready(Ok(())) => tbuf.filled().len(),
-                other => return other,
-            }
-        };
-
-        unsafe {
-            buf.advance(n);
-        }
-        Poll::Ready(Ok(()))
-    }
-}
-
-impl<T> hyper::rt::Write for TokioIo<T>
-where
-    T: tokio::io::AsyncWrite,
-{
-    fn poll_write(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-        buf: &[u8],
-    ) -> Poll<Result<usize, std::io::Error>> {
-        tokio::io::AsyncWrite::poll_write(self.project().inner, cx, buf)
-    }
-
-    fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), std::io::Error>> {
-        tokio::io::AsyncWrite::poll_flush(self.project().inner, cx)
-    }
-
-    fn poll_shutdown(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-    ) -> Poll<Result<(), std::io::Error>> {
-        tokio::io::AsyncWrite::poll_shutdown(self.project().inner, cx)
-    }
-
-    fn is_write_vectored(&self) -> bool {
-        tokio::io::AsyncWrite::is_write_vectored(&self.inner)
-    }
-
-    fn poll_write_vectored(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-        bufs: &[std::io::IoSlice<'_>],
-    ) -> Poll<Result<usize, std::io::Error>> {
-        tokio::io::AsyncWrite::poll_write_vectored(self.project().inner, cx, bufs)
-    }
-}
-
-impl<T> tokio::io::AsyncRead for TokioIo<T>
-where
-    T: hyper::rt::Read,
-{
-    fn poll_read(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-        tbuf: &mut tokio::io::ReadBuf<'_>,
-    ) -> Poll<Result<(), std::io::Error>> {
-        let filled = tbuf.filled().len();
-        let sub_filled = unsafe {
-            let mut buf = hyper::rt::ReadBuf::uninit(tbuf.unfilled_mut());
-
-            match hyper::rt::Read::poll_read(self.project().inner, cx, buf.unfilled()) {
-                Poll::Ready(Ok(())) => buf.filled().len(),
-                other => return other,
-            }
-        };
-
-        let n_filled = filled + sub_filled;
-        // At least sub_filled bytes had to have been initialized.
-        let n_init = sub_filled;
-        unsafe {
-            tbuf.assume_init(n_init);
-            tbuf.set_filled(n_filled);
-        }
-
-        Poll::Ready(Ok(()))
-    }
-}
-
-impl<T> tokio::io::AsyncWrite for TokioIo<T>
-where
-    T: hyper::rt::Write,
-{
-    fn poll_write(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-        buf: &[u8],
-    ) -> Poll<Result<usize, std::io::Error>> {
-        hyper::rt::Write::poll_write(self.project().inner, cx, buf)
-    }
-
-    fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), std::io::Error>> {
-        hyper::rt::Write::poll_flush(self.project().inner, cx)
-    }
-
-    fn poll_shutdown(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-    ) -> Poll<Result<(), std::io::Error>> {
-        hyper::rt::Write::poll_shutdown(self.project().inner, cx)
-    }
-
-    fn is_write_vectored(&self) -> bool {
-        hyper::rt::Write::is_write_vectored(&self.inner)
-    }
-
-    fn poll_write_vectored(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-        bufs: &[std::io::IoSlice<'_>],
-    ) -> Poll<Result<usize, std::io::Error>> {
-        hyper::rt::Write::poll_write_vectored(self.project().inner, cx, bufs)
-    }
-}

axum/src/lib.rs

@@ -432,8 +432,6 @@ mod boxed;
 mod extension;
 #[cfg(feature = "form")]
 mod form;
-#[cfg(feature = "tokio")]
-mod hyper1_tokio_io;
 #[cfg(feature = "json")]
 mod json;
 mod service_ext;

axum/src/serve.rs

@@ -2,10 +2,12 @@
 
 use std::{convert::Infallible, io, net::SocketAddr};
 
-use crate::hyper1_tokio_io::TokioIo;
 use axum_core::{body::Body, extract::Request, response::Response};
 use futures_util::{future::poll_fn, FutureExt};
-use hyper1::server::conn::http1;
+use hyper_util::{
+    rt::{TokioExecutor, TokioIo},
+    server::conn::auto::Builder,
+};
 use tokio::net::{TcpListener, TcpStream};
 use tower_hyper_http_body_compat::{HttpBody04ToHttpBody1, HttpBody1ToHttpBody04};
 use tower_service::Service;
@@ -15,7 +17,7 @@ use tower_service::Service;
 /// This method of running a service is intentionally simple and doesn't support any configuration.
 /// Use hyper or hyper-util if you need configuration.
 ///
-/// It only supports HTTP/1.
+/// It supports both HTTP/1 as well as HTTP/2.
 ///
 /// # Examples
 ///
@@ -138,10 +140,9 @@ where
         });
 
         tokio::task::spawn(async move {
-            match http1::Builder::new()
-                .serve_connection(tcp_stream, service)
-                // for websockets
-                .with_upgrades()
+            match Builder::new(TokioExecutor::new())
+                // upgrades needed for websockets
+                .serve_connection_with_upgrades(tcp_stream.into_inner(), service)
                 .await
             {
                 Ok(()) => {}