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// Copied from hyperium/hyper-tls#62e3376/src/stream.rs
use std::fmt;
use std::io;
use std::pin::Pin;
use std::task::{Context, Poll};
use hyper::rt;
use hyper_util::client::legacy::connect::{Connected, Connection};
use hyper_util::rt::TokioIo;
use tokio_rustls::client::TlsStream;
/// A stream that might be protected with TLS.
#[allow(clippy::large_enum_variant)]
pub enum MaybeHttpsStream<T> {
/// A stream over plain text.
Http(T),
/// A stream protected with TLS.
Https(TokioIo<TlsStream<TokioIo<T>>>),
}
impl<T: rt::Read + rt::Write + Connection + Unpin> Connection for MaybeHttpsStream<T> {
fn connected(&self) -> Connected {
match self {
Self::Http(s) => s.connected(),
Self::Https(s) => {
let (tcp, tls) = s.inner().get_ref();
if tls.alpn_protocol() == Some(b"h2") {
tcp.inner().connected().negotiated_h2()
} else {
tcp.inner().connected()
}
}
}
}
}
impl<T: fmt::Debug> fmt::Debug for MaybeHttpsStream<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Self::Http(..) => f.pad("Http(..)"),
Self::Https(..) => f.pad("Https(..)"),
}
}
}
impl<T> From<T> for MaybeHttpsStream<T> {
fn from(inner: T) -> Self {
Self::Http(inner)
}
}
impl<T> From<TlsStream<TokioIo<T>>> for MaybeHttpsStream<T> {
fn from(inner: TlsStream<TokioIo<T>>) -> Self {
Self::Https(TokioIo::new(inner))
}
}
impl<T: rt::Read + rt::Write + Unpin> rt::Read for MaybeHttpsStream<T> {
#[inline]
fn poll_read(
self: Pin<&mut Self>,
cx: &mut Context,
buf: rt::ReadBufCursor<'_>,
) -> Poll<Result<(), io::Error>> {
match Pin::get_mut(self) {
Self::Http(s) => Pin::new(s).poll_read(cx, buf),
Self::Https(s) => Pin::new(s).poll_read(cx, buf),
}
}
}
impl<T: rt::Write + rt::Read + Unpin> rt::Write for MaybeHttpsStream<T> {
#[inline]
fn poll_write(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &[u8],
) -> Poll<Result<usize, io::Error>> {
match Pin::get_mut(self) {
Self::Http(s) => Pin::new(s).poll_write(cx, buf),
Self::Https(s) => Pin::new(s).poll_write(cx, buf),
}
}
#[inline]
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
match Pin::get_mut(self) {
Self::Http(s) => Pin::new(s).poll_flush(cx),
Self::Https(s) => Pin::new(s).poll_flush(cx),
}
}
#[inline]
fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
match Pin::get_mut(self) {
Self::Http(s) => Pin::new(s).poll_shutdown(cx),
Self::Https(s) => Pin::new(s).poll_shutdown(cx),
}
}
#[inline]
fn is_write_vectored(&self) -> bool {
match self {
Self::Http(s) => s.is_write_vectored(),
Self::Https(s) => s.is_write_vectored(),
}
}
#[inline]
fn poll_write_vectored(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
bufs: &[io::IoSlice<'_>],
) -> Poll<Result<usize, io::Error>> {
match Pin::get_mut(self) {
Self::Http(s) => Pin::new(s).poll_write_vectored(cx, bufs),
Self::Https(s) => Pin::new(s).poll_write_vectored(cx, bufs),
}
}
}
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