Add use-rustls-ring feature

.github/workflows/cont_integration.yml

@@ -45,3 +45,4 @@ jobs:
       - run: cargo check --verbose --no-default-features --features=minimal,debug-calls
       - run: cargo check --verbose --no-default-features --features=proxy,use-openssl
       - run: cargo check --verbose --no-default-features --features=proxy,use-rustls
+      - run: cargo check --verbose --no-default-features --features=proxy,use-rustls-ring

Cargo.toml

@@ -25,7 +25,7 @@ serde_json = { version = "^1.0" }
 
 # Optional dependencies
 openssl = { version = "0.10", optional = true }
-rustls = { version = "0.23", optional = true }
+rustls = { version = "0.23", optional = true, default-features = false }
 webpki-roots = { version = "0.25", optional = true }
 
 byteorder = { version = "1.0", optional = true }
@@ -41,5 +41,6 @@ default = ["proxy", "use-rustls"]
 minimal = []
 debug-calls = []
 proxy = ["byteorder", "winapi", "libc"]
-use-rustls = ["webpki-roots", "rustls"]
+use-rustls = ["webpki-roots", "rustls/default"]
+use-rustls-ring = ["webpki-roots", "rustls/ring", "rustls/logging", "rustls/std", "rustls/tls12"]
 use-openssl = ["openssl"]

src/lib.rs

@@ -25,14 +25,22 @@ extern crate log;
 #[cfg(feature = "use-openssl")]
 extern crate openssl;
 #[cfg(all(
-    any(feature = "default", feature = "use-rustls"),
+    any(
+        feature = "default",
+        feature = "use-rustls",
+        feature = "use-rustls-ring"
+    ),
     not(feature = "use-openssl")
 ))]
 extern crate rustls;
 extern crate serde;
 extern crate serde_json;
 
-#[cfg(any(feature = "use-rustls", feature = "default"))]
+#[cfg(any(
+    feature = "default",
+    feature = "use-rustls",
+    feature = "use-rustls-ring"
+))]
 extern crate webpki_roots;
 
 #[cfg(any(feature = "default", feature = "proxy"))]
@@ -51,7 +59,8 @@ mod batch;
 
 #[cfg(any(
     all(feature = "proxy", feature = "use-openssl"),
-    all(feature = "proxy", feature = "use-rustls")
+    all(feature = "proxy", feature = "use-rustls"),
+    all(feature = "proxy", feature = "use-rustls-ring")
 ))]
 pub mod client;
 
@@ -66,7 +75,8 @@ pub use api::ElectrumApi;
 pub use batch::Batch;
 #[cfg(any(
     all(feature = "proxy", feature = "use-openssl"),
-    all(feature = "proxy", feature = "use-rustls")
+    all(feature = "proxy", feature = "use-rustls"),
+    all(feature = "proxy", feature = "use-rustls-ring")
 ))]
 pub use client::*;
 pub use config::{Config, ConfigBuilder, Socks5Config};

src/raw_client.rs

@@ -23,7 +23,11 @@ use bitcoin::{Script, Txid};
 use openssl::ssl::{SslConnector, SslMethod, SslStream, SslVerifyMode};
 
 #[cfg(all(
-    any(feature = "default", feature = "use-rustls"),
+    any(
+        feature = "default",
+        feature = "use-rustls",
+        feature = "use-rustls-ring"
+    ),
     not(feature = "use-openssl")
 ))]
 use rustls::{
@@ -286,7 +290,11 @@ impl RawClient<ElectrumSslStream> {
 }
 
 #[cfg(all(
-    any(feature = "default", feature = "use-rustls"),
+    any(
+        feature = "default",
+        feature = "use-rustls",
+        feature = "use-rustls-ring"
+    ),
     not(feature = "use-openssl")
 ))]
 mod danger {
@@ -336,13 +344,21 @@ mod danger {
 }
 
 #[cfg(all(
-    any(feature = "default", feature = "use-rustls"),
+    any(
+        feature = "default",
+        feature = "use-rustls",
+        feature = "use-rustls-ring"
+    ),
     not(feature = "use-openssl")
 ))]
 /// Transport type used to establish a Rustls TLS encrypted/authenticated connection with the server
 pub type ElectrumSslStream = StreamOwned<ClientConnection, TcpStream>;
 #[cfg(all(
-    any(feature = "default", feature = "use-rustls"),
+    any(
+        feature = "default",
+        feature = "use-rustls",
+        feature = "use-rustls-ring"
+    ),
     not(feature = "use-openssl")
 ))]
 impl RawClient<ElectrumSslStream> {
@@ -451,7 +467,11 @@ impl RawClient<ElectrumProxyStream> {
         Ok(stream.into())
     }
 
-    #[cfg(any(feature = "use-openssl", feature = "use-rustls"))]
+    #[cfg(any(
+        feature = "use-openssl",
+        feature = "use-rustls",
+        feature = "use-rustls-ring"
+    ))]
     /// Creates a new TLS client that connects to `target_addr` using `proxy_addr` as a socks proxy
     /// server. The DNS resolution of `target_addr`, if required, is done through the proxy. This
     /// allows to specify, for instance, `.onion` addresses.

src/types.rs

@@ -315,8 +315,7 @@ pub enum Error {
     CouldntLockReader,
     /// Broken IPC communication channel: the other thread probably has exited
     Mpsc,
-
-    #[cfg(feature = "use-rustls")]
+    #[cfg(any(feature = "use-rustls", feature = "use-rustls-ring"))]
     /// Could not create a rustls client connection
     CouldNotCreateConnection(rustls::Error),
 
@@ -340,7 +339,10 @@ impl Display for Error {
             Error::SslHandshakeError(e) => Display::fmt(e, f),
             #[cfg(feature = "use-openssl")]
             Error::InvalidSslMethod(e) => Display::fmt(e, f),
-            #[cfg(feature = "use-rustls")]
+            #[cfg(any(
+                feature = "use-rustls",
+                feature = "use-rustls-ring",
+            ))]
             Error::CouldNotCreateConnection(e) => Display::fmt(e, f),
 
             Error::Message(e) => f.write_str(e),