feat: add rustls v0.22 support (#513)

actix-tls/src/connect/mod.rs

@@ -46,6 +46,12 @@ pub use rustls_0_20 as rustls;
 ))]
 pub mod rustls_0_21;
 
+#[cfg(any(
+    feature = "rustls-0_22-webpki-roots",
+    feature = "rustls-0_22-native-roots",
+))]
+pub mod rustls_0_22;
+
 #[cfg(feature = "native-tls")]
 pub mod native_tls;
 

actix-tls/src/connect/rustls_0_20.rs

@@ -39,7 +39,7 @@ pub mod reexports {
 pub fn native_roots_cert_store() -> io::Result<RootCertStore> {
     let mut root_certs = RootCertStore::empty();
 
-    for cert in rustls_native_certs::load_native_certs()? {
+    for cert in rustls_native_certs_06::load_native_certs()? {
         root_certs
             .add(&tokio_rustls_023::rustls::Certificate(cert.0))
             .unwrap();

actix-tls/src/connect/rustls_0_21.rs

@@ -39,7 +39,7 @@ pub mod reexports {
 pub fn native_roots_cert_store() -> io::Result<RootCertStore> {
     let mut root_certs = RootCertStore::empty();
 
-    for cert in rustls_native_certs::load_native_certs()? {
+    for cert in rustls_native_certs_06::load_native_certs()? {
         root_certs
             .add(&tokio_rustls_024::rustls::Certificate(cert.0))
             .unwrap();

actix-tls/src/connect/rustls_0_22.rs

@@ -0,0 +1,162 @@
+//! Rustls based connector service.
+//!
+//! See [`TlsConnector`] for main connector service factory docs.
+
+use std::{
+    future::Future,
+    io,
+    pin::Pin,
+    sync::Arc,
+    task::{Context, Poll},
+};
+
+use actix_rt::net::ActixStream;
+use actix_service::{Service, ServiceFactory};
+use actix_utils::future::{ok, Ready};
+use futures_core::ready;
+use rustls_pki_types_1::ServerName;
+use tokio_rustls::{
+    client::TlsStream as AsyncTlsStream,
+    rustls::{ClientConfig, RootCertStore},
+    Connect as RustlsConnect, TlsConnector as RustlsTlsConnector,
+};
+use tokio_rustls_025 as tokio_rustls;
+
+use crate::connect::{Connection, Host};
+
+pub mod reexports {
+    //! Re-exports from the `rustls` v0.22 ecosystem that are useful for connectors.
+
+    pub use tokio_rustls_025::{client::TlsStream as AsyncTlsStream, rustls::ClientConfig};
+    #[cfg(feature = "rustls-0_22-webpki-roots")]
+    pub use webpki_roots_026::TLS_SERVER_ROOTS;
+}
+
+/// Returns root certificates via `rustls-native-certs` crate as a rustls certificate store.
+///
+/// See [`rustls_native_certs::load_native_certs()`] for more info on behavior and errors.
+#[cfg(feature = "rustls-0_22-native-roots")]
+pub fn native_roots_cert_store() -> io::Result<RootCertStore> {
+    let mut root_certs = RootCertStore::empty();
+
+    for cert in rustls_native_certs_07::load_native_certs()? {
+        root_certs.add(cert).unwrap();
+    }
+
+    Ok(root_certs)
+}
+
+/// Returns standard root certificates from `webpki-roots` crate as a rustls certificate store.
+#[cfg(feature = "rustls-0_22-webpki-roots")]
+pub fn webpki_roots_cert_store() -> RootCertStore {
+    let mut root_certs = RootCertStore::empty();
+    root_certs.extend(webpki_roots_026::TLS_SERVER_ROOTS.to_owned());
+    root_certs
+}
+
+/// Connector service factory using `rustls`.
+#[derive(Clone)]
+pub struct TlsConnector {
+    connector: Arc<ClientConfig>,
+}
+
+impl TlsConnector {
+    /// Constructs new connector service factory from a `rustls` client configuration.
+    pub fn new(connector: Arc<ClientConfig>) -> Self {
+        TlsConnector { connector }
+    }
+
+    /// Constructs new connector service from a `rustls` client configuration.
+    pub fn service(connector: Arc<ClientConfig>) -> TlsConnectorService {
+        TlsConnectorService { connector }
+    }
+}
+
+impl<R, IO> ServiceFactory<Connection<R, IO>> for TlsConnector
+where
+    R: Host,
+    IO: ActixStream + 'static,
+{
+    type Response = Connection<R, AsyncTlsStream<IO>>;
+    type Error = io::Error;
+    type Config = ();
+    type Service = TlsConnectorService;
+    type InitError = ();
+    type Future = Ready<Result<Self::Service, Self::InitError>>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        ok(TlsConnectorService {
+            connector: self.connector.clone(),
+        })
+    }
+}
+
+/// Connector service using `rustls`.
+#[derive(Clone)]
+pub struct TlsConnectorService {
+    connector: Arc<ClientConfig>,
+}
+
+impl<R, IO> Service<Connection<R, IO>> for TlsConnectorService
+where
+    R: Host,
+    IO: ActixStream,
+{
+    type Response = Connection<R, AsyncTlsStream<IO>>;
+    type Error = io::Error;
+    type Future = ConnectFut<R, IO>;
+
+    actix_service::always_ready!();
+
+    fn call(&self, connection: Connection<R, IO>) -> Self::Future {
+        tracing::trace!("TLS handshake start for: {:?}", connection.hostname());
+        let (stream, conn) = connection.replace_io(());
+
+        match ServerName::try_from(conn.hostname()) {
+            Ok(host) => ConnectFut::Future {
+                connect: RustlsTlsConnector::from(Arc::clone(&self.connector))
+                    .connect(host.to_owned(), stream),
+                connection: Some(conn),
+            },
+            Err(_) => ConnectFut::InvalidServerName,
+        }
+    }
+}
+
+/// Connect future for Rustls service.
+#[doc(hidden)]
+#[allow(clippy::large_enum_variant)]
+pub enum ConnectFut<R, IO> {
+    InvalidServerName,
+    Future {
+        connect: RustlsConnect<IO>,
+        connection: Option<Connection<R, ()>>,
+    },
+}
+
+impl<R, IO> Future for ConnectFut<R, IO>
+where
+    R: Host,
+    IO: ActixStream,
+{
+    type Output = io::Result<Connection<R, AsyncTlsStream<IO>>>;
+
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        match self.get_mut() {
+            Self::InvalidServerName => Poll::Ready(Err(io::Error::new(
+                io::ErrorKind::InvalidInput,
+                "connection parameters specified invalid server name",
+            ))),
+
+            Self::Future {
+                connect,
+                connection,
+            } => {
+                let stream = ready!(Pin::new(connect).poll(cx))?;
+                let connection = connection.take().unwrap();
+                tracing::trace!("TLS handshake success: {:?}", connection.hostname());
+                Poll::Ready(Ok(connection.replace_io(stream).1))
+            }
+        }
+    }
+}