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[#260] Support HTTPS local with rustls
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,202 @@ | ||
| //! TLS support by [rustls](https://crates.io/crates/rustls) | ||
| use std::{ | ||
| fs::File, | ||
| future::Future, | ||
| io::{self, BufReader, Read}, | ||
| net::SocketAddr, | ||
| pin::Pin, | ||
| sync::Arc, | ||
| task::{self, Poll}, | ||
| }; | ||
|
|
||
| use futures::ready; | ||
| use hyper::server::{ | ||
| accept::Accept, | ||
| conn::{AddrIncoming, AddrStream}, | ||
| }; | ||
| use log::trace; | ||
| use pin_project::pin_project; | ||
| use tokio::io::{AsyncRead, AsyncWrite}; | ||
| use tokio_rustls::rustls::{self, NoClientAuth, PrivateKey, ServerConfig}; | ||
|
|
||
| use crate::config::Config; | ||
|
|
||
| #[pin_project] | ||
| pub struct TlsAcceptor { | ||
| acceptor: tokio_rustls::TlsAcceptor, | ||
| #[pin] | ||
| incoming: AddrIncoming, | ||
| } | ||
|
|
||
| impl TlsAcceptor { | ||
| pub fn bind(config: &Config, addr: &SocketAddr) -> io::Result<TlsAcceptor> { | ||
| let id_cert_path = config.tls_identity_certificate_path.as_ref().expect("certificate path"); | ||
| let id_key_path = config.tls_identity_private_key_path.as_ref().expect("private key path"); | ||
|
|
||
| trace!( | ||
| "creating TLS acceptor with cert: {}, private key: {}", | ||
| id_cert_path.display(), | ||
| id_key_path.display() | ||
| ); | ||
|
|
||
| let id_cert_file = File::open(id_cert_path)?; | ||
| let id_cert = match rustls::internal::pemfile::certs(&mut BufReader::new(id_cert_file)) { | ||
| Ok(certs) => certs, | ||
| Err(..) => { | ||
| let err = io::Error::new(io::ErrorKind::InvalidData, "error while loading certificates"); | ||
| return Err(err); | ||
| } | ||
| }; | ||
|
|
||
| let mut id_key_file = File::open(id_key_path)?; | ||
| let mut id_key_buf = Vec::new(); | ||
| id_key_file.read_to_end(&mut id_key_buf)?; | ||
|
|
||
| let mut id_key = TlsAcceptor::load_pkcs8_private_key(&id_key_buf)?; | ||
| if id_key.is_empty() { | ||
| id_key = TlsAcceptor::load_rsa_private_key(&id_key_buf)?; | ||
| } | ||
|
|
||
| if id_key.is_empty() { | ||
| let err = io::Error::new( | ||
| io::ErrorKind::InvalidInput, | ||
| "cannot find any PKCS #8 or RSA private keys", | ||
| ); | ||
| return Err(err); | ||
| } | ||
|
|
||
| let mut config = ServerConfig::new(NoClientAuth::new()); | ||
| if let Err(err) = config.set_single_cert(id_cert, id_key.remove(0)) { | ||
| let err = io::Error::new(io::ErrorKind::Other, format!("setting certificate: {}", err)); | ||
| return Err(err); | ||
| } | ||
| config.set_protocols(&["h2".into(), "http/1.1".into()]); | ||
|
|
||
| let server_config = Arc::new(config); | ||
|
|
||
| Ok(TlsAcceptor { | ||
| acceptor: From::from(server_config), | ||
| incoming: match AddrIncoming::bind(addr) { | ||
| Ok(incoming) => incoming, | ||
| Err(err) => { | ||
| let err = io::Error::new(io::ErrorKind::Other, format!("hyper bind: {}", err)); | ||
| return Err(err); | ||
| } | ||
| }, | ||
| }) | ||
| } | ||
|
|
||
| fn load_pkcs8_private_key(key: &[u8]) -> io::Result<Vec<PrivateKey>> { | ||
| match rustls::internal::pemfile::pkcs8_private_keys(&mut BufReader::new(key)) { | ||
| Ok(pk) => Ok(pk), | ||
| Err(..) => { | ||
| let err = io::Error::new(io::ErrorKind::InvalidData, "error while loading PKCS #8 private keys"); | ||
| Err(err) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| fn load_rsa_private_key(key: &[u8]) -> io::Result<Vec<PrivateKey>> { | ||
| match rustls::internal::pemfile::rsa_private_keys(&mut BufReader::new(key)) { | ||
| Ok(pk) => Ok(pk), | ||
| Err(..) => { | ||
| let err = io::Error::new(io::ErrorKind::InvalidData, "error while loading PKCS #8 private keys"); | ||
| Err(err) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| pub fn local_addr(&self) -> SocketAddr { | ||
| self.incoming.local_addr() | ||
| } | ||
| } | ||
|
|
||
| impl Accept for TlsAcceptor { | ||
| type Conn = TlsStream; | ||
| type Error = io::Error; | ||
|
|
||
| fn poll_accept(self: Pin<&mut Self>, cx: &mut task::Context<'_>) -> Poll<Option<Result<Self::Conn, Self::Error>>> { | ||
| let this = self.project(); | ||
| match ready!(this.incoming.poll_accept(cx)) { | ||
| Some(Ok(stream)) => { | ||
| let remote_addr = stream.remote_addr(); | ||
| Poll::Ready(Some(Ok(TlsStream { | ||
| state: TlsStreamState::Handshaking(this.acceptor.accept(stream)), | ||
| remote_addr, | ||
| }))) | ||
| } | ||
| Some(Err(e)) => Poll::Ready(Some(Err(e))), | ||
| None => Poll::Ready(None), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| enum TlsStreamState { | ||
| Handshaking(tokio_rustls::Accept<AddrStream>), | ||
| Streaming(tokio_rustls::server::TlsStream<AddrStream>), | ||
| } | ||
|
|
||
| pub struct TlsStream { | ||
| state: TlsStreamState, | ||
| remote_addr: SocketAddr, | ||
| } | ||
|
|
||
| impl TlsStream { | ||
| pub fn remote_addr(&self) -> SocketAddr { | ||
| self.remote_addr | ||
| } | ||
| } | ||
|
|
||
| macro_rules! forward_stream_method { | ||
| ($self:expr, $cx:expr, $method:ident $(, $param:expr)*) => {{ | ||
| let this = $self.get_mut(); | ||
|
|
||
| loop { | ||
| match this.state { | ||
| TlsStreamState::Handshaking(ref mut accept_fut) => { | ||
| match ready!(Pin::new(accept_fut).poll($cx)) { | ||
| Ok(stream) => { | ||
| this.state = TlsStreamState::Streaming(stream); | ||
| } | ||
| Err(err) => { | ||
| let err = io::Error::new(io::ErrorKind::Other, format!("tls handshake: {}", err)); | ||
| return Poll::Ready(Err(err)); | ||
| } | ||
| } | ||
| } | ||
| TlsStreamState::Streaming(ref mut stream) => { | ||
| return Pin::new(stream).$method($cx, $($param),*); | ||
| } | ||
| } | ||
| } | ||
| }}; | ||
| } | ||
|
|
||
| impl AsyncRead for TlsStream { | ||
| fn poll_read(self: Pin<&mut Self>, cx: &mut task::Context<'_>, buf: &mut [u8]) -> Poll<io::Result<usize>> { | ||
| forward_stream_method!(self, cx, poll_read, buf) | ||
| } | ||
| } | ||
|
|
||
| impl AsyncWrite for TlsStream { | ||
| fn poll_write(self: Pin<&mut Self>, cx: &mut task::Context<'_>, buf: &[u8]) -> Poll<io::Result<usize>> { | ||
| forward_stream_method!(self, cx, poll_write, buf) | ||
| } | ||
|
|
||
| fn poll_flush(self: Pin<&mut Self>, cx: &mut task::Context<'_>) -> Poll<io::Result<()>> { | ||
| let this = self.get_mut(); | ||
| match this.state { | ||
| TlsStreamState::Handshaking(..) => Poll::Ready(Ok(())), | ||
| TlsStreamState::Streaming(ref mut stream) => Pin::new(stream).poll_flush(cx), | ||
| } | ||
| } | ||
|
|
||
| fn poll_shutdown(self: Pin<&mut Self>, cx: &mut task::Context<'_>) -> Poll<io::Result<()>> { | ||
| let this = self.get_mut(); | ||
| match this.state { | ||
| TlsStreamState::Handshaking(..) => Poll::Ready(Ok(())), | ||
| TlsStreamState::Streaming(ref mut stream) => Pin::new(stream).poll_shutdown(cx), | ||
| } | ||
| } | ||
| } |