Cargo.toml

@@ -23,14 +23,13 @@ name="internal"
 harness = false
 
 [dependencies]
-hyper = { version = "1.2.0", features = ["client", "http1"] }
+hyper = { version = "0.14.18", features = ["client"] }
-hyper-util = { version = "0.1.3", features = ["client-legacy", "http1","tokio"] }
 lazy_static = "1.4.0"
 tokio = { version = "1.17.0", features = ["io-util", "rt"] }
 tracing = "0.1.34"
 
 [dev-dependencies]
-hyper = { version = "1.2.0", features = ["client", "http1"] }
+hyper = { version = "0.14.18", features = ["server"] }
 futures = "0.3.21"
 async-trait = "0.1.53"
 async-tungstenite = { version = "0.17", features = ["tokio-runtime"] }

src/lib.rs

@@ -3,13 +3,11 @@
 #[macro_use]
 extern crate tracing;
 
-use hyper::header::{HeaderMap, HeaderName, HeaderValue};
+use hyper::header::{HeaderMap, HeaderName, HeaderValue, HOST};
 use hyper::http::header::{InvalidHeaderValue, ToStrError};
 use hyper::http::uri::InvalidUri;
 use hyper::upgrade::OnUpgrade;
-use hyper::{body::Incoming, Error, Request, Response, StatusCode};
+use hyper::{Body, Client, Error, Request, Response, StatusCode};
-use hyper_util::client::legacy::{connect::Connect, Client, Error as LegacyError};
-use hyper_util::rt::tokio::TokioIo;
 use lazy_static::lazy_static;
 use std::net::IpAddr;
 use tokio::io::copy_bidirectional;
@@ -39,18 +37,11 @@ lazy_static! {
 #[derive(Debug)]
 pub enum ProxyError {
     InvalidUri(InvalidUri),
-    LegacyHyperError(LegacyError),
     HyperError(Error),
     ForwardHeaderError,
     UpgradeError(String),
 }
 
-impl From<LegacyError> for ProxyError {
-    fn from(err: LegacyError) -> ProxyError {
-        ProxyError::LegacyHyperError(err)
-    }
-}
-
 impl From<Error> for ProxyError {
     fn from(err: Error) -> ProxyError {
         ProxyError::HyperError(err)
@@ -84,7 +75,7 @@ fn remove_hop_headers(headers: &mut HeaderMap) {
 }
 
 fn get_upgrade_type(headers: &HeaderMap) -> Option<String> {
-    #[allow(clippy::blocks_in_conditions)]
+    #[allow(clippy::blocks_in_if_conditions)]
     if headers
         .get(&*CONNECTION_HEADER)
         .map(|value| {
@@ -124,7 +115,7 @@ fn remove_connection_headers(headers: &mut HeaderMap) {
 }
 
 fn create_proxied_response<B>(mut response: Response<B>) -> Response<B> {
-    debug!("Creating proxied response");
+    info!("Creating proxied response");
 
     remove_hop_headers(response.headers_mut());
     remove_connection_headers(response.headers_mut());
@@ -137,7 +128,7 @@ fn forward_uri<B>(forward_url: &str, req: &Request<B>) -> String {
 
     let split_url = forward_url.split('?').collect::<Vec<&str>>();
 
-    let mut base_url: &str = split_url.first().unwrap_or(&"");
+    let mut base_url: &str = split_url.get(0).unwrap_or(&"");
     let forward_url_query: &str = split_url.get(1).unwrap_or(&"");
 
     let path2 = req.uri().path();
@@ -216,7 +207,7 @@ fn create_proxied_request<B>(
     mut request: Request<B>,
     upgrade_type: Option<&String>,
 ) -> Result<Request<B>, ProxyError> {
-    debug!("Creating proxied request");
+    info!("Creating proxied request");
 
     let contains_te_trailers_value = request
         .headers()
@@ -234,9 +225,9 @@ fn create_proxied_request<B>(
 
     debug!("Setting headers of proxied request");
 
-    //request
+    request
-    //    .headers_mut()
+        .headers_mut()
-    //    .insert(HOST, HeaderValue::from_str(uri.host().unwrap())?);
+        .insert(HOST, HeaderValue::from_str(uri.host().unwrap())?);
 
     *request.uri_mut() = uri;
 
@@ -265,12 +256,12 @@ fn create_proxied_request<B>(
     // Add forwarding information in the headers
     match request.headers_mut().entry(&*X_FORWARDED_FOR) {
         hyper::header::Entry::Vacant(entry) => {
-            debug!("X-Forwarded-for header was vacant");
+            debug!("X-Fowraded-for header was vacant");
             entry.insert(client_ip.to_string().parse()?);
         }
 
         hyper::header::Entry::Occupied(entry) => {
-            debug!("X-Forwarded-for header was occupied");
+            debug!("X-Fowraded-for header was occupied");
             let client_ip_str = client_ip.to_string();
             let mut addr =
                 String::with_capacity(entry.get().as_bytes().len() + 2 + client_ip_str.len());
@@ -287,13 +278,13 @@ fn create_proxied_request<B>(
     Ok(request)
 }
 
-pub async fn call<'a, T: Connect + Clone + Send + Sync + 'static>(
+pub async fn call<'a, T: hyper::client::connect::Connect + Clone + Send + Sync + 'static>(
     client_ip: IpAddr,
     forward_uri: &str,
-    mut request: Request<Incoming>,
+    mut request: Request<Body>,
-    client: &'a Client<T, Incoming>,
+    client: &'a Client<T>,
-) -> Result<Response<Incoming>, ProxyError> {
+) -> Result<Response<Body>, ProxyError> {
-    debug!(
+    info!(
         "Received proxy call from {} to {}, client: {}",
         request.uri().to_string(),
         forward_uri,
@@ -316,22 +307,21 @@ pub async fn call<'a, T: Connect + Clone + Send + Sync + 'static>(
 
         if request_upgrade_type == response_upgrade_type {
             if let Some(request_upgraded) = request_upgraded {
-                let mut response_upgraded = TokioIo::new(
+                let mut response_upgraded = response
-                    response
                     .extensions_mut()
                     .remove::<OnUpgrade>()
-                        .ok_or(ProxyError::UpgradeError(
+                    .expect("response does not have an upgrade extension")
-                            "Failed to upgrade response".to_string(),
+                    .await?;
-                        ))?
-                        .await?,
-                );
 
                 debug!("Responding to a connection upgrade response");
 
-                let mut request_upgraded = TokioIo::new(request_upgraded.await?);
-
                 tokio::spawn(async move {
-                    copy_bidirectional(&mut response_upgraded, &mut request_upgraded).await
+                    let mut request_upgraded =
+                        request_upgraded.await.expect("failed to upgrade request");
+
+                    copy_bidirectional(&mut response_upgraded, &mut request_upgraded)
+                        .await
+                        .expect("coping between upgraded connections failed");
                 });
 
                 Ok(response)
@@ -354,12 +344,12 @@ pub async fn call<'a, T: Connect + Clone + Send + Sync + 'static>(
     }
 }
 
-pub struct ReverseProxy<T: Connect + Clone + Send + Sync + 'static> {
+pub struct ReverseProxy<T: hyper::client::connect::Connect + Clone + Send + Sync + 'static> {
-    client: Client<T, Incoming>,
+    client: Client<T>,
 }
 
-impl<T: Connect + Clone + Send + Sync + 'static> ReverseProxy<T> {
+impl<T: hyper::client::connect::Connect + Clone + Send + Sync + 'static> ReverseProxy<T> {
-    pub fn new(client: Client<T, Incoming>) -> Self {
+    pub fn new(client: Client<T>) -> Self {
         Self { client }
     }
 
@@ -367,8 +357,8 @@ impl<T: Connect + Clone + Send + Sync + 'static> ReverseProxy<T> {
         &self,
         client_ip: IpAddr,
         forward_uri: &str,
-        request: Request<Incoming>,
+        request: Request<Body>,
-    ) -> Result<Response<Incoming>, ProxyError> {
+    ) -> Result<Response<Body>, ProxyError> {
         call::<T>(client_ip, forward_uri, request, &self.client).await
     }
 }