Add ConnectorBuilder::with_provider_and_platform_verifier

Signed-off-by: Jens Reidel <adrian@travitia.xyz>

Author: Gelbpunkt

src/connector/builder.rs

@@ -1,7 +1,11 @@
 use std::sync::Arc;
 
 use hyper_util::client::legacy::connect::HttpConnector;
-#[cfg(any(feature = "rustls-native-certs", feature = "webpki-roots"))]
+#[cfg(any(
+    feature = "rustls-native-certs",
+    feature = "rustls-platform-verifier",
+    feature = "webpki-roots"
+))]
 use rustls::crypto::CryptoProvider;
 use rustls::ClientConfig;
 
@@ -61,7 +65,8 @@ impl ConnectorBuilder<WantsTlsConfig> {
         ConnectorBuilder(WantsSchemes { tls_config: config })
     }
 
-    /// Use rustls' default crypto provider and other defaults, and the platform verifier
+    /// Shorthand for using rustls' default crypto provider and other defaults, and
+    /// the platform verifier.
     ///
     /// See [`ConfigBuilderExt::with_platform_verifier()`].
     #[cfg(all(
@@ -76,6 +81,23 @@ impl ConnectorBuilder<WantsTlsConfig> {
         )
     }
 
+    /// Shorthand for using a custom [`CryptoProvider`] and the platform verifier.
+    ///
+    /// See [`ConfigBuilderExt::with_platform_verifier()`].
+    #[cfg(feature = "rustls-platform-verifier")]
+    pub fn with_provider_and_platform_verifier(
+        self,
+        provider: CryptoProvider,
+    ) -> std::io::Result<ConnectorBuilder<WantsSchemes>> {
+        Ok(self.with_tls_config(
+            ClientConfig::builder_with_provider(provider.into())
+                .with_safe_default_protocol_versions()
+                .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, e))?
+                .with_platform_verifier()
+                .with_no_client_auth(),
+        ))
+    }
+
     /// Shorthand for using rustls' default crypto provider and safe defaults, with
     /// native roots.
     ///