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Signed-off-by: Heinz N. Gies <heinz@licenser.net>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| use core::task::{Context, Poll}; | ||
| use futures_util::ready; | ||
| use hyper::server::accept::Accept; | ||
| use hyper::server::conn::{AddrIncoming, AddrStream}; | ||
| use rustls::ServerConfig; | ||
| use std::future::Future; | ||
| use std::io; | ||
| use std::pin::Pin; | ||
| use std::sync::Arc; | ||
| use tokio::io::{AsyncRead, AsyncWrite, ReadBuf}; | ||
|
|
||
| mod builder; | ||
|
|
||
| pub use builder::AcceptorBuilder; | ||
|
|
||
| use self::builder::WantsTlsConfig; | ||
| enum State { | ||
| Handshaking(tokio_rustls::Accept<AddrStream>), | ||
| Streaming(tokio_rustls::server::TlsStream<AddrStream>), | ||
| } | ||
|
|
||
| // tokio_rustls::server::TlsStream doesn't expose constructor methods, | ||
| // so we have to TlsAcceptor::accept and handshake to have access to it | ||
| // TlsStream implements AsyncRead/AsyncWrite handshaking tokio_rustls::Accept first | ||
| pub struct TlsStream { | ||
| state: State, | ||
| } | ||
|
|
||
| impl TlsStream { | ||
| fn new(stream: AddrStream, config: Arc<ServerConfig>) -> TlsStream { | ||
| let accept = tokio_rustls::TlsAcceptor::from(config).accept(stream); | ||
| TlsStream { | ||
| state: State::Handshaking(accept), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl AsyncRead for TlsStream { | ||
| fn poll_read( | ||
| self: Pin<&mut Self>, | ||
| cx: &mut Context, | ||
| buf: &mut ReadBuf, | ||
| ) -> Poll<io::Result<()>> { | ||
| let pin = self.get_mut(); | ||
| match pin.state { | ||
| State::Handshaking(ref mut accept) => match ready!(Pin::new(accept).poll(cx)) { | ||
| Ok(mut stream) => { | ||
| let result = Pin::new(&mut stream).poll_read(cx, buf); | ||
| pin.state = State::Streaming(stream); | ||
| result | ||
| } | ||
| Err(err) => Poll::Ready(Err(err)), | ||
| }, | ||
| State::Streaming(ref mut stream) => Pin::new(stream).poll_read(cx, buf), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl AsyncWrite for TlsStream { | ||
| fn poll_write( | ||
| self: Pin<&mut Self>, | ||
| cx: &mut Context<'_>, | ||
| buf: &[u8], | ||
| ) -> Poll<io::Result<usize>> { | ||
| let pin = self.get_mut(); | ||
| match pin.state { | ||
| State::Handshaking(ref mut accept) => match ready!(Pin::new(accept).poll(cx)) { | ||
| Ok(mut stream) => { | ||
| let result = Pin::new(&mut stream).poll_write(cx, buf); | ||
| pin.state = State::Streaming(stream); | ||
| result | ||
| } | ||
| Err(err) => Poll::Ready(Err(err)), | ||
| }, | ||
| State::Streaming(ref mut stream) => Pin::new(stream).poll_write(cx, buf), | ||
| } | ||
| } | ||
|
|
||
| fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> { | ||
| match self.state { | ||
| State::Handshaking(_) => Poll::Ready(Ok(())), | ||
| State::Streaming(ref mut stream) => Pin::new(stream).poll_flush(cx), | ||
| } | ||
| } | ||
|
|
||
| fn poll_shutdown(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> { | ||
| match self.state { | ||
| State::Handshaking(_) => Poll::Ready(Ok(())), | ||
| State::Streaming(ref mut stream) => Pin::new(stream).poll_shutdown(cx), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /// A TLS acceptor that can be used with hyper servers. | ||
| pub struct TlsAcceptor { | ||
| config: Arc<ServerConfig>, | ||
| incoming: AddrIncoming, | ||
| } | ||
|
|
||
| /// A Acceptor for the `https` scheme. | ||
| impl TlsAcceptor { | ||
| /// Provides a builder for a `TlsAcceptor`. | ||
| pub fn builder() -> AcceptorBuilder<WantsTlsConfig> { | ||
| AcceptorBuilder::new() | ||
| } | ||
| /// Creates a new `TlsAcceptor` from a `ServerConfig` and an `AddrIncoming`. | ||
| pub fn new(config: Arc<ServerConfig>, incoming: AddrIncoming) -> TlsAcceptor { | ||
| TlsAcceptor { config, incoming } | ||
| } | ||
| } | ||
|
|
||
| impl<C, I> From<(C, I)> for TlsAcceptor | ||
| where | ||
| C: Into<Arc<ServerConfig>>, | ||
| I: Into<AddrIncoming>, | ||
| { | ||
| fn from((config, incoming): (C, I)) -> TlsAcceptor { | ||
| TlsAcceptor::new(config.into(), incoming.into()) | ||
| } | ||
| } | ||
|
|
||
| impl Accept for TlsAcceptor { | ||
| type Conn = TlsStream; | ||
| type Error = io::Error; | ||
|
|
||
| fn poll_accept( | ||
| self: Pin<&mut Self>, | ||
| cx: &mut Context<'_>, | ||
| ) -> Poll<Option<Result<Self::Conn, Self::Error>>> { | ||
| let pin = self.get_mut(); | ||
| match ready!(Pin::new(&mut pin.incoming).poll_accept(cx)) { | ||
| Some(Ok(sock)) => Poll::Ready(Some(Ok(TlsStream::new(sock, pin.config.clone())))), | ||
| Some(Err(e)) => Poll::Ready(Some(Err(e))), | ||
| None => Poll::Ready(None), | ||
| } | ||
| } | ||
| } |
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