mirror of
https://github.com/tokio-rs/axum.git
synced 2025-03-14 11:43:44 +01:00
Fix example-unix-domain-socket on non-unix platforms (#919)
* remove unused `axum`'s dependency:`tokio-util` * fix `examples/todos`'s `async fn todos_index` iter_overeager_cloned * Add docs to `/examples/async-graphql`, just like other xamples. * remove `examples/async-graphql` unused dependencies `tracing-subscriber` and `trace` * `examples/chat` deps `trace` and `tracing-subscriber` never be used. Add trace `debug` to `chat` * remove `examples/print-request-response` unused dependency `axum-extra` * remove `examples/prometheus-metrics` unused dependency `axum-extra` * remove `examples/reverse-proxy` unused dependencies `tracing-subscriber` and `trace` * `examples/chat` fmt fix * fix `example-unix-domain-socket` compile error on not-unix platforms Co-authored-by: zys864 <zys864@qq.com> Co-authored-by: zys864 <zys864@gmail.com>
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zys864
GitHub
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1 changed files with 140 additions and 130 deletions
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@ -4,31 +4,11 @@
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//! cargo run -p example-unix-domain-socket
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//! ```
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use axum::{
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body::Body,
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extract::connect_info::{self, ConnectInfo},
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http::{Method, Request, StatusCode, Uri},
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routing::get,
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Router,
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};
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use futures::ready;
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use hyper::{
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client::connect::{Connected, Connection},
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server::accept::Accept,
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};
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use std::{
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io,
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path::PathBuf,
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pin::Pin,
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sync::Arc,
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task::{Context, Poll},
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};
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use tokio::{
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io::{AsyncRead, AsyncWrite},
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net::{unix::UCred, UnixListener, UnixStream},
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};
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use tower::BoxError;
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use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
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#[cfg(unix)]
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#[tokio::main]
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async fn main() {
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unix::server().await;
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}
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#[cfg(not(unix))]
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fn main() {
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@ -36,135 +16,165 @@ fn main() {
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}
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#[cfg(unix)]
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#[tokio::main]
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async fn main() {
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tracing_subscriber::registry()
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.with(tracing_subscriber::EnvFilter::new(
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std::env::var("RUST_LOG").unwrap_or_else(|_| "debug".into()),
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))
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.with(tracing_subscriber::fmt::layer())
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.init();
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mod unix {
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use axum::{
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body::Body,
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extract::connect_info::{self, ConnectInfo},
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http::{Method, Request, StatusCode, Uri},
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routing::get,
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Router,
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};
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use futures::ready;
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use hyper::{
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client::connect::{Connected, Connection},
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server::accept::Accept,
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};
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use std::{
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io,
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path::PathBuf,
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pin::Pin,
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sync::Arc,
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task::{Context, Poll},
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};
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use tokio::{
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io::{AsyncRead, AsyncWrite},
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net::{unix::UCred, UnixListener, UnixStream},
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};
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use tower::BoxError;
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use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
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let path = PathBuf::from("/tmp/axum/helloworld");
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pub async fn server() {
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tracing_subscriber::registry()
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.with(tracing_subscriber::EnvFilter::new(
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std::env::var("RUST_LOG").unwrap_or_else(|_| "debug".into()),
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))
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.with(tracing_subscriber::fmt::layer())
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.init();
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let _ = tokio::fs::remove_file(&path).await;
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tokio::fs::create_dir_all(path.parent().unwrap())
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.await
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.unwrap();
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let path = PathBuf::from("/tmp/axum/helloworld");
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let uds = UnixListener::bind(path.clone()).unwrap();
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tokio::spawn(async {
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let app = Router::new().route("/", get(handler));
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axum::Server::builder(ServerAccept { uds })
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.serve(app.into_make_service_with_connect_info::<UdsConnectInfo>())
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let _ = tokio::fs::remove_file(&path).await;
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tokio::fs::create_dir_all(path.parent().unwrap())
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.await
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.unwrap();
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});
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let connector = tower::service_fn(move |_: Uri| {
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let path = path.clone();
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Box::pin(async move {
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let stream = UnixStream::connect(path).await?;
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Ok::<_, io::Error>(ClientConnection { stream })
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})
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});
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let client = hyper::Client::builder().build(connector);
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let uds = UnixListener::bind(path.clone()).unwrap();
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tokio::spawn(async {
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let app = Router::new().route("/", get(handler));
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let request = Request::builder()
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.method(Method::GET)
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.uri("http://uri-doesnt-matter.com")
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.body(Body::empty())
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.unwrap();
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axum::Server::builder(ServerAccept { uds })
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.serve(app.into_make_service_with_connect_info::<UdsConnectInfo>())
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.await
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.unwrap();
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});
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let response = client.request(request).await.unwrap();
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let connector = tower::service_fn(move |_: Uri| {
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let path = path.clone();
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Box::pin(async move {
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let stream = UnixStream::connect(path).await?;
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Ok::<_, io::Error>(ClientConnection { stream })
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})
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});
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let client = hyper::Client::builder().build(connector);
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assert_eq!(response.status(), StatusCode::OK);
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let request = Request::builder()
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.method(Method::GET)
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.uri("http://uri-doesnt-matter.com")
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.body(Body::empty())
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.unwrap();
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let body = hyper::body::to_bytes(response.into_body()).await.unwrap();
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let body = String::from_utf8(body.to_vec()).unwrap();
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assert_eq!(body, "Hello, World!");
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}
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let response = client.request(request).await.unwrap();
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async fn handler(ConnectInfo(info): ConnectInfo<UdsConnectInfo>) -> &'static str {
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println!("new connection from `{:?}`", info);
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assert_eq!(response.status(), StatusCode::OK);
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"Hello, World!"
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}
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struct ServerAccept {
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uds: UnixListener,
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}
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impl Accept for ServerAccept {
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type Conn = UnixStream;
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type Error = BoxError;
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fn poll_accept(
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self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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) -> Poll<Option<Result<Self::Conn, Self::Error>>> {
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let (stream, _addr) = ready!(self.uds.poll_accept(cx))?;
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Poll::Ready(Some(Ok(stream)))
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}
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}
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struct ClientConnection {
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stream: UnixStream,
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}
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impl AsyncWrite for ClientConnection {
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fn poll_write(
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mut self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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buf: &[u8],
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) -> Poll<Result<usize, io::Error>> {
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Pin::new(&mut self.stream).poll_write(cx, buf)
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let body = hyper::body::to_bytes(response.into_body()).await.unwrap();
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let body = String::from_utf8(body.to_vec()).unwrap();
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assert_eq!(body, "Hello, World!");
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}
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fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
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Pin::new(&mut self.stream).poll_flush(cx)
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async fn handler(ConnectInfo(info): ConnectInfo<UdsConnectInfo>) -> &'static str {
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println!("new connection from `{:?}`", info);
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"Hello, World!"
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}
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fn poll_shutdown(
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mut self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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) -> Poll<Result<(), io::Error>> {
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Pin::new(&mut self.stream).poll_shutdown(cx)
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struct ServerAccept {
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uds: UnixListener,
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}
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}
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impl AsyncRead for ClientConnection {
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fn poll_read(
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mut self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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buf: &mut tokio::io::ReadBuf<'_>,
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) -> Poll<io::Result<()>> {
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Pin::new(&mut self.stream).poll_read(cx, buf)
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impl Accept for ServerAccept {
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type Conn = UnixStream;
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type Error = BoxError;
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fn poll_accept(
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self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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) -> Poll<Option<Result<Self::Conn, Self::Error>>> {
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let (stream, _addr) = ready!(self.uds.poll_accept(cx))?;
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Poll::Ready(Some(Ok(stream)))
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}
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}
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}
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impl Connection for ClientConnection {
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fn connected(&self) -> Connected {
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Connected::new()
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struct ClientConnection {
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stream: UnixStream,
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}
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}
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#[derive(Clone, Debug)]
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#[allow(dead_code)]
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struct UdsConnectInfo {
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peer_addr: Arc<tokio::net::unix::SocketAddr>,
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peer_cred: UCred,
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}
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impl AsyncWrite for ClientConnection {
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fn poll_write(
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mut self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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buf: &[u8],
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) -> Poll<Result<usize, io::Error>> {
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Pin::new(&mut self.stream).poll_write(cx, buf)
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}
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impl connect_info::Connected<&UnixStream> for UdsConnectInfo {
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fn connect_info(target: &UnixStream) -> Self {
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let peer_addr = target.peer_addr().unwrap();
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let peer_cred = target.peer_cred().unwrap();
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fn poll_flush(
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mut self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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) -> Poll<Result<(), io::Error>> {
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Pin::new(&mut self.stream).poll_flush(cx)
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}
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Self {
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peer_addr: Arc::new(peer_addr),
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peer_cred,
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fn poll_shutdown(
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mut self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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) -> Poll<Result<(), io::Error>> {
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Pin::new(&mut self.stream).poll_shutdown(cx)
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}
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}
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impl AsyncRead for ClientConnection {
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fn poll_read(
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mut self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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buf: &mut tokio::io::ReadBuf<'_>,
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) -> Poll<io::Result<()>> {
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Pin::new(&mut self.stream).poll_read(cx, buf)
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}
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}
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impl Connection for ClientConnection {
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fn connected(&self) -> Connected {
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Connected::new()
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}
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}
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#[derive(Clone, Debug)]
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#[allow(dead_code)]
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struct UdsConnectInfo {
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peer_addr: Arc<tokio::net::unix::SocketAddr>,
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peer_cred: UCred,
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}
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impl connect_info::Connected<&UnixStream> for UdsConnectInfo {
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fn connect_info(target: &UnixStream) -> Self {
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let peer_addr = target.peer_addr().unwrap();
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let peer_cred = target.peer_cred().unwrap();
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Self {
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peer_addr: Arc::new(peer_addr),
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peer_cred,
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}
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}
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}
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}
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