112 lines
3.4 KiB
Rust
112 lines
3.4 KiB
Rust
use std::fmt;
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use std::io;
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use std::io::IoSlice;
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use std::pin::Pin;
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use std::task::{Context, Poll};
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use hyper::client::connect::{Connected, Connection};
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use tokio::io::{AsyncRead, AsyncWrite, ReadBuf};
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pub use tokio_native_tls::TlsStream;
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/// A stream that might be protected with TLS.
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pub enum MaybeHttpsStream<T> {
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/// A stream over plain text.
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Http(T),
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/// A stream protected with TLS.
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Https(TlsStream<T>),
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}
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// ===== impl MaybeHttpsStream =====
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impl<T: fmt::Debug> fmt::Debug for MaybeHttpsStream<T> {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self {
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MaybeHttpsStream::Http(s) => f.debug_tuple("Http").field(s).finish(),
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MaybeHttpsStream::Https(s) => f.debug_tuple("Https").field(s).finish(),
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}
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}
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}
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impl<T> From<T> for MaybeHttpsStream<T> {
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fn from(inner: T) -> Self {
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MaybeHttpsStream::Http(inner)
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}
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}
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impl<T> From<TlsStream<T>> for MaybeHttpsStream<T> {
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fn from(inner: TlsStream<T>) -> Self {
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MaybeHttpsStream::Https(inner)
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}
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}
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impl<T: AsyncRead + AsyncWrite + Unpin> AsyncRead for MaybeHttpsStream<T> {
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#[inline]
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fn poll_read(
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self: Pin<&mut Self>,
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cx: &mut Context,
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buf: &mut ReadBuf,
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) -> Poll<Result<(), io::Error>> {
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match Pin::get_mut(self) {
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MaybeHttpsStream::Http(s) => Pin::new(s).poll_read(cx, buf),
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MaybeHttpsStream::Https(s) => Pin::new(s).poll_read(cx, buf),
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}
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}
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}
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impl<T: AsyncWrite + AsyncRead + Unpin> AsyncWrite for MaybeHttpsStream<T> {
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#[inline]
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fn poll_write(
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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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match Pin::get_mut(self) {
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MaybeHttpsStream::Http(s) => Pin::new(s).poll_write(cx, buf),
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MaybeHttpsStream::Https(s) => Pin::new(s).poll_write(cx, buf),
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}
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}
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fn poll_write_vectored(
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self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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bufs: &[IoSlice<'_>],
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) -> Poll<Result<usize, io::Error>> {
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match Pin::get_mut(self) {
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MaybeHttpsStream::Http(s) => Pin::new(s).poll_write_vectored(cx, bufs),
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MaybeHttpsStream::Https(s) => Pin::new(s).poll_write_vectored(cx, bufs),
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}
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}
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fn is_write_vectored(&self) -> bool {
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match self {
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MaybeHttpsStream::Http(s) => s.is_write_vectored(),
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MaybeHttpsStream::Https(s) => s.is_write_vectored(),
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}
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}
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#[inline]
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fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
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match Pin::get_mut(self) {
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MaybeHttpsStream::Http(s) => Pin::new(s).poll_flush(cx),
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MaybeHttpsStream::Https(s) => Pin::new(s).poll_flush(cx),
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}
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}
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#[inline]
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fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
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match Pin::get_mut(self) {
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MaybeHttpsStream::Http(s) => Pin::new(s).poll_shutdown(cx),
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MaybeHttpsStream::Https(s) => Pin::new(s).poll_shutdown(cx),
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}
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}
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}
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impl<T: AsyncRead + AsyncWrite + Connection + Unpin> Connection for MaybeHttpsStream<T> {
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fn connected(&self) -> Connected {
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match self {
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MaybeHttpsStream::Http(s) => s.connected(),
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MaybeHttpsStream::Https(s) => s.get_ref().get_ref().get_ref().connected(),
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}
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}
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}
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