add x-forwarded-proto

docker-compose.yml

@@ -10,8 +10,8 @@ services:
     build:
       context: ./
     environment:
-      - LOG_LEVEL=info
-      - LOG_TO_FILE
+      - LOG_LEVEL=debug
+      - LOG_TO_FILE=false
     tty: false
     privileged: true
     volumes:

src/proxy/proxy_handler.rs

@@ -70,7 +70,7 @@ where
     let request_upgraded = req.extensions_mut().remove::<hyper::upgrade::OnUpgrade>();
 
     // Build request from destination information
-    let req_forwarded = if let Ok(req) = generate_request_forwarded(
+    let req_forwarded = if let Ok(req) = self.generate_request_forwarded(
       client_addr,
       req,
       upstream_scheme_host,
@@ -149,7 +149,7 @@ where
       }
     } else {
       // Generate response to client
-      if generate_response_forwarded(&mut res_backend).is_ok() {
+      if self.generate_response_forwarded(&mut res_backend).is_ok() {
         info!("{} => {}", request_log, response_log);
         Ok(res_backend)
       } else {
@@ -158,12 +158,14 @@ where
       }
     }
   }
-}
 
   ////////////////////////////////////////////////////
   // Functions to generate messages
 
-fn generate_response_forwarded<B: core::fmt::Debug>(response: &mut Response<B>) -> Result<()> {
+  fn generate_response_forwarded<B: core::fmt::Debug>(
+    &self,
+    response: &mut Response<B>,
+  ) -> Result<()> {
     let headers = response.headers_mut();
     remove_hop_header(headers);
     remove_connection_header(headers);
@@ -177,6 +179,7 @@ fn generate_response_forwarded<B: core::fmt::Debug>(response: &mut Response<B>)
   }
 
   fn generate_request_forwarded<B: core::fmt::Debug>(
+    &self,
     client_addr: SocketAddr,
     mut req: Request<B>,
     upstream_scheme_host: &Uri,
@@ -200,7 +203,7 @@ fn generate_request_forwarded<B: core::fmt::Debug>(
     // delete hop headers including header.connection
     remove_hop_header(headers);
     // X-Forwarded-For
-  add_forwarding_header(headers, client_addr)?;
+    add_forwarding_header(headers, client_addr, self.tls_enabled)?;
     // println!("{:?}", headers);
 
     // Add te: trailer if te_trailer
@@ -250,3 +253,4 @@ fn generate_request_forwarded<B: core::fmt::Debug>(
 
     Ok(req)
   }
+}

src/proxy/utils_headers.rs

@@ -49,6 +49,7 @@ pub(super) fn append_header_entry(
 pub(super) fn add_forwarding_header(
   headers: &mut HeaderMap,
   client_addr: SocketAddr,
+  tls: bool,
 ) -> Result<()> {
   // default process
   // optional process defined by upstream_option is applied in fn apply_upstream_options
@@ -57,6 +58,11 @@ pub(super) fn add_forwarding_header(
     "x-forwarded-for",
     &client_addr.to_canonical().ip().to_string(),
   )?;
+  append_header_entry(
+    headers,
+    "x-forwarded-proto",
+    if tls { "https" } else { "http" },
+  )?;
 
   Ok(())
 }