Allow construction with HttpConnector and default ClientConfig (closes rustls#67)

Author: inikulin

src/connector.rs

@@ -2,6 +2,7 @@ use futures_util::FutureExt;
 #[cfg(feature = "tokio-runtime")]
 use hyper::client::connect::HttpConnector;
 use hyper::{client::connect::Connection, service::Service, Uri};
+use log::warn;
 use rustls::ClientConfig;
 use std::future::Future;
 use std::pin::Pin;
@@ -11,7 +12,6 @@ use std::{fmt, io};
 use tokio::io::{AsyncRead, AsyncWrite};
 use tokio_rustls::TlsConnector;
 use webpki::DNSNameRef;
-use log::warn;
 
 use crate::stream::MaybeHttpsStream;
 
@@ -24,41 +24,27 @@ pub struct HttpsConnector<T> {
     tls_config: Arc<ClientConfig>,
 }
 
-#[cfg(all(any(feature = "rustls-native-certs", feature = "webpki-roots"), feature = "tokio-runtime"))]
+#[cfg(all(
+    any(feature = "rustls-native-certs", feature = "webpki-roots"),
+    feature = "tokio-runtime"
+))]
 impl HttpsConnector<HttpConnector> {
     /// Construct a new `HttpsConnector`.
     ///
     /// Takes number of DNS worker threads.
     pub fn new() -> Self {
         let mut http = HttpConnector::new();
+
         http.enforce_http(false);
-        let mut config = ClientConfig::new();
-        config.alpn_protocols = vec![b"h2".to_vec(), b"http/1.1".to_vec()];
-        #[cfg(feature = "rustls-native-certs")] 
-        {
-            config.root_store = match rustls_native_certs::load_native_certs() {
-                Ok(store) => store,
-                Err((Some(store), err)) => {
-                    warn!("Could not load all certificates: {:?}", err);
-                    store
-                }
-                Err((None, err)) => {
-                    Err(err).expect("cannot access native cert store")
-                }
-            };
-        }
-        #[cfg(feature = "webpki-roots")] 
-        {
-            config
-                .root_store
-                .add_server_trust_anchors(&webpki_roots::TLS_SERVER_ROOTS);
-        }
-        config.ct_logs = Some(&ct_logs::LOGS);
-        (http, config).into()
+
+        http.into()
     }
 }
 
-#[cfg(all(any(feature = "rustls-native-certs", feature = "webpki-roots"), feature = "tokio-runtime"))]
+#[cfg(all(
+    any(feature = "rustls-native-certs", feature = "webpki-roots"),
+    feature = "tokio-runtime"
+))]
 impl Default for HttpsConnector<HttpConnector> {
     fn default() -> Self {
         Self::new()
@@ -73,7 +59,7 @@ impl<T> fmt::Debug for HttpsConnector<T> {
 
 impl<H, C> From<(H, C)> for HttpsConnector<H>
 where
-    C: Into<Arc<ClientConfig>> 
+    C: Into<Arc<ClientConfig>>,
 {
     fn from((http, cfg): (H, C)) -> Self {
         HttpsConnector {
@@ -83,6 +69,36 @@ where
     }
 }
 
+impl<H> From<H> for HttpsConnector<H> {
+    fn from(http: H) -> Self {
+        let mut config = ClientConfig::new();
+        config.alpn_protocols = vec![b"h2".to_vec(), b"http/1.1".to_vec()];
+        #[cfg(feature = "rustls-native-certs")]
+        {
+            config.root_store = match rustls_native_certs::load_native_certs() {
+                Ok(store) => store,
+                Err((Some(store), err)) => {
+                    warn!("Could not load all certificates: {:?}", err);
+                    store
+                }
+                Err((None, err)) => Err(err).expect("cannot access native cert store"),
+            };
+        }
+        #[cfg(feature = "webpki-roots")]
+        {
+            config
+                .root_store
+                .add_server_trust_anchors(&webpki_roots::TLS_SERVER_ROOTS);
+        }
+        config.ct_logs = Some(&ct_logs::LOGS);
+
+        HttpsConnector {
+            http,
+            tls_config: config.into(),
+        }
+    }
+}
+
 impl<T> Service<Uri> for HttpsConnector<T>
 where
     T: Service<Uri>,