v25.11.0

changelog.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## 2026-03-15 - 25.11.0 - feat(rustproxy-http)
+add HTTP/2 Extended CONNECT WebSocket proxy support
+
+- Enable HTTP/2 CONNECT protocol support on the Hyper auto connection builder
+- Detect WebSocket requests for both HTTP/1 Upgrade and HTTP/2 Extended CONNECT flows
+- Translate HTTP/2 WebSocket requests to an HTTP/1.1 backend handshake and return RFC-compliant client responses
+
 ## 2026-03-12 - 25.10.7 - fix(rustproxy-http)
 remove Host header from HTTP/2 upstream requests while preserving it for HTTP/1 retries
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@push.rocks/smartproxy",
-  "version": "25.10.7",
+  "version": "25.11.0",
   "private": false,
   "description": "A powerful proxy package with unified route-based configuration for high traffic management. Features include SSL/TLS support, flexible routing patterns, WebSocket handling, advanced security options, and automatic ACME certificate management.",
   "main": "dist_ts/index.js",

rust/crates/rustproxy-http/src/proxy_service.rs

@@ -304,8 +304,10 @@ impl HttpProxyService {
         });
 
         // Auto-detect h1 vs h2 based on ALPN / connection preface.
-        // serve_connection_with_upgrades supports h1 Upgrade (WebSocket) and h2 CONNECT.
-        let builder = hyper_util::server::conn::auto::Builder::new(hyper_util::rt::TokioExecutor::new());
+        // serve_connection_with_upgrades supports h1 Upgrade (WebSocket) and h2 Extended CONNECT (RFC 8441).
+        let mut builder = hyper_util::server::conn::auto::Builder::new(hyper_util::rt::TokioExecutor::new());
+        // Advertise Extended CONNECT support so H2 clients can initiate WebSocket connections
+        builder.http2().enable_connect_protocol();
         let conn = builder.serve_connection_with_upgrades(io, service);
         // Pin on the heap — auto::UpgradeableConnection is !Unpin
         let mut conn = Box::pin(conn);
@@ -482,16 +484,22 @@ impl HttpProxyService {
         let domain_str = host.as_deref().unwrap_or("-");
         self.upstream_selector.connection_started(&upstream_key);
 
-        // Check for WebSocket upgrade
-        let is_websocket = req.headers()
+        // Check for WebSocket upgrade: H1 (Upgrade header) or H2 Extended CONNECT (RFC 8441)
+        let is_h1_websocket = req.headers()
             .get("upgrade")
             .and_then(|v| v.to_str().ok())
             .map(|v| v.eq_ignore_ascii_case("websocket"))
             .unwrap_or(false);
 
-        if is_websocket {
+        let is_h2_websocket = req.method() == hyper::Method::CONNECT
+            && req.extensions()
+                .get::<hyper::ext::Protocol>()
+                .map(|p| p.as_str().eq_ignore_ascii_case("websocket"))
+                .unwrap_or(false);
+
+        if is_h1_websocket || is_h2_websocket {
             let result = self.handle_websocket_upgrade(
-                req, peer_addr, &upstream, route_match.route, route_id, &upstream_key, cancel, &ip_str,
+                req, peer_addr, &upstream, route_match.route, route_id, &upstream_key, cancel, &ip_str, is_h2_websocket,
             ).await;
             // Note: for WebSocket, connection_ended is called inside
             // the spawned tunnel task when the connection closes.
@@ -1559,7 +1567,7 @@ impl HttpProxyService {
         Ok(response.body(body).unwrap())
     }
 
-    /// Handle a WebSocket upgrade request.
+    /// Handle a WebSocket upgrade request (H1 Upgrade or H2 Extended CONNECT per RFC 8441).
     async fn handle_websocket_upgrade(
         &self,
         req: Request<Incoming>,
@@ -1570,6 +1578,7 @@ impl HttpProxyService {
         upstream_key: &str,
         cancel: CancellationToken,
         source_ip: &str,
+        is_h2: bool,
     ) -> Result<Response<BoxBody<Bytes, hyper::Error>>, hyper::Error> {
         use tokio::io::{AsyncReadExt, AsyncWriteExt};
 
@@ -1655,9 +1664,11 @@ impl HttpProxyService {
 
         let (parts, _body) = req.into_parts();
 
+        // H2 Extended CONNECT uses method=CONNECT, but the H1.1 backend expects GET
+        let backend_method = if is_h2 { "GET" } else { parts.method.as_str() };
         let mut raw_request = format!(
             "{} {} HTTP/1.1\r\n",
-            parts.method, upstream_path
+            backend_method, upstream_path
         );
 
         // Copy all original headers (preserving the client's Host header).
@@ -1685,6 +1696,23 @@ impl HttpProxyService {
             }
         }
 
+        // H2 Extended CONNECT doesn't carry H1 WebSocket handshake headers;
+        // inject them so the H1.1 backend can complete the upgrade.
+        if is_h2 {
+            if !parts.headers.contains_key("upgrade") {
+                raw_request.push_str("upgrade: websocket\r\n");
+            }
+            if !parts.headers.contains_key("connection") {
+                raw_request.push_str("connection: Upgrade\r\n");
+            }
+            if !parts.headers.contains_key("sec-websocket-version") {
+                raw_request.push_str("sec-websocket-version: 13\r\n");
+            }
+            if !parts.headers.contains_key("sec-websocket-key") {
+                raw_request.push_str("sec-websocket-key: dGhlIHNhbXBsZSBub25jZQ==\r\n");
+            }
+        }
+
         // Add standard reverse-proxy headers (X-Forwarded-*)
         {
             let original_host = parts.headers.get("host")
@@ -1787,8 +1815,12 @@ impl HttpProxyService {
             ));
         }
 
-        let mut client_resp = Response::builder()
-            .status(StatusCode::SWITCHING_PROTOCOLS);
+        // H1: 101 Switching Protocols; H2: 200 OK (RFC 8441 — hyper requires 2xx for Extended CONNECT upgrade)
+        let mut client_resp = if is_h2 {
+            Response::builder().status(StatusCode::OK)
+        } else {
+            Response::builder().status(StatusCode::SWITCHING_PROTOCOLS)
+        };
 
         if let Some(resp_headers) = client_resp.headers_mut() {
             for line in response_str.lines().skip(1) {
@@ -1799,6 +1831,17 @@ impl HttpProxyService {
                 if let Some((name, value)) = line.split_once(':') {
                     let name = name.trim();
                     let value = value.trim();
+                    // Skip hop-by-hop headers for H2 (forbidden by RFC 9113 §8.2.2)
+                    if is_h2 {
+                        let name_lower = name.to_lowercase();
+                        if name_lower == "upgrade" || name_lower == "connection"
+                            || name_lower == "sec-websocket-accept"
+                            || name_lower == "transfer-encoding"
+                            || name_lower == "keep-alive"
+                        {
+                            continue;
+                        }
+                    }
                     if let Ok(header_name) = hyper::header::HeaderName::from_bytes(name.as_bytes()) {
                         if let Ok(header_value) = hyper::header::HeaderValue::from_str(value) {
                             resp_headers.insert(header_name, header_value);

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartproxy',
-  version: '25.10.7',
+  version: '25.11.0',
   description: 'A powerful proxy package with unified route-based configuration for high traffic management. Features include SSL/TLS support, flexible routing patterns, WebSocket handling, advanced security options, and automatic ACME certificate management.'
 }