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use std::pin::Pin;
use std::sync::atomic::{AtomicUsize, Ordering};
use std::sync::Arc;
#[cfg(feature = "client")]
use futures_channel::mpsc;
use futures_util::task::{Context, Poll};
use futures_util::Future;
use futures_util::TryFutureExt;
use hyper::Uri;
use tokio::io::{self, AsyncRead, AsyncWrite, ReadBuf};
#[cfg(feature = "tokio")]
use tokio::net::TcpStream;
use hyper::rt::ReadBufCursor;
#[cfg(feature = "client-legacy")]
use hyper_util::client::legacy::connect::{HttpConnector, Connected, Connection};
#[cfg(feature = "tokio")]
use hyper_util::rt::TokioIo;
#[cfg(feature = "client-legacy")]
mod debug_connector {
use super::*;
#[derive(Clone)]
pub struct DebugConnector {
pub http: HttpConnector,
pub closes: mpsc::Sender<()>,
pub connects: Arc<AtomicUsize>,
pub is_proxy: bool,
pub alpn_h2: bool,
}
impl DebugConnector {
pub fn new() -> DebugConnector {
let http = HttpConnector::new();
let (tx, _) = mpsc::channel(10);
DebugConnector::with_http_and_closes(http, tx)
}
pub fn with_http_and_closes(http: HttpConnector, closes: mpsc::Sender<()>) -> DebugConnector {
DebugConnector {
http,
closes,
connects: Arc::new(AtomicUsize::new(0)),
is_proxy: false,
alpn_h2: false,
}
}
pub fn proxy(mut self) -> Self {
self.is_proxy = true;
self
}
}
impl tower_service::Service<Uri> for DebugConnector {
type Response = DebugStream;
type Error = <HttpConnector as tower_service::Service<Uri>>::Error;
type Future = Pin<Box<dyn Future<Output = Result<Self::Response, Self::Error>> + Send>>;
fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
// don't forget to check inner service is ready :)
tower_service::Service::<Uri>::poll_ready(&mut self.http, cx)
}
fn call(&mut self, dst: Uri) -> Self::Future {
self.connects.fetch_add(1, Ordering::SeqCst);
let closes = self.closes.clone();
let is_proxy = self.is_proxy;
let is_alpn_h2 = self.alpn_h2;
Box::pin(self.http.call(dst).map_ok(move |tcp| DebugStream {
tcp,
on_drop: closes,
is_alpn_h2,
is_proxy,
}))
}
}
}
#[cfg(feature = "client-legacy")]
pub use debug_connector::*;
#[cfg(all(feature = "client", feature = "tokio"))]
mod debug_stream {
use super::*;
pub struct DebugStream {
pub(super) tcp: TokioIo<TcpStream>,
pub(super) on_drop: mpsc::Sender<()>,
pub(super) is_alpn_h2: bool,
pub(super) is_proxy: bool,
}
impl Drop for DebugStream {
fn drop(&mut self) {
let _ = self.on_drop.try_send(());
}
}
impl Connection for DebugStream {
fn connected(&self) -> Connected {
let connected = self.tcp.connected().proxy(self.is_proxy);
if self.is_alpn_h2 {
connected.negotiated_h2()
} else {
connected
}
}
}
impl hyper::rt::Read for DebugStream {
fn poll_read(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: ReadBufCursor<'_>,
) -> Poll<Result<(), std::io::Error>> {
hyper::rt::Read::poll_read(Pin::new(&mut self.tcp), cx, buf)
}
}
impl hyper::rt::Write for DebugStream {
fn poll_write(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &[u8],
) -> Poll<Result<usize, std::io::Error>> {
hyper::rt::Write::poll_write(Pin::new(&mut self.tcp), cx, buf)
}
fn poll_flush(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
) -> Poll<Result<(), std::io::Error>> {
hyper::rt::Write::poll_flush(Pin::new(&mut self.tcp), cx)
}
fn poll_shutdown(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
) -> Poll<Result<(), std::io::Error>> {
hyper::rt::Write::poll_shutdown(Pin::new(&mut self.tcp), cx)
}
fn is_write_vectored(&self) -> bool {
hyper::rt::Write::is_write_vectored(&self.tcp)
}
fn poll_write_vectored(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
bufs: &[std::io::IoSlice<'_>],
) -> Poll<Result<usize, std::io::Error>> {
hyper::rt::Write::poll_write_vectored(Pin::new(&mut self.tcp), cx, bufs)
}
}
impl AsyncWrite for DebugStream {
fn poll_shutdown(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
) -> Poll<Result<(), io::Error>> {
Pin::new(self.tcp.inner_mut()).poll_shutdown(cx)
}
fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
Pin::new(self.tcp.inner_mut()).poll_flush(cx)
}
fn poll_write(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &[u8],
) -> Poll<Result<usize, io::Error>> {
Pin::new(self.tcp.inner_mut()).poll_write(cx, buf)
}
}
impl AsyncRead for DebugStream {
fn poll_read(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &mut ReadBuf<'_>,
) -> Poll<io::Result<()>> {
Pin::new(self.tcp.inner_mut()).poll_read(cx, buf)
}
}
}
#[cfg(all(feature = "client", feature = "tokio"))]
pub use debug_stream::*;
|
