Added echoing of user agents

src/main.rs

@@ -225,6 +225,7 @@ async fn main() {
 	    .route("/dig/:name", get(handle_dig_route_with_path))
 	    .route("/ip", get(handle_ip_route))
 	    .route("/ip/:address", get(handle_ip_route_with_path))
+	    .route("/ua", get(user_agent_handler))
     	.route("/hi", get(hello_world_handler))
     	.with_state(shared_state)
     	.layer(
@@ -271,7 +272,6 @@ async fn format_and_language_middleware<B>(
 	next.run(req).await
 }
 
-#[axum::debug_handler]
 async fn hello_world_handler(
 	State(arc_state): State<Arc<ServiceSharedState>>,
 	Extension(settings): Extension<TemplateSettings>,
@@ -287,9 +287,16 @@ async fn hello_world_handler(
 	).await
 }
 
+async fn user_agent_handler(
+	TypedHeader(user_agent): TypedHeader<headers::UserAgent>,
+) -> String {
+	user_agent.to_string()
+}
+
 async fn handle_default_route(
 	State(arc_state): State<Arc<ServiceSharedState>>,
 	Extension(settings): Extension<TemplateSettings>,
+	user_agent_header: Option<TypedHeader<headers::UserAgent>>,
 	SecureClientIp(address): SecureClientIp
 ) -> Response {
 
@@ -301,9 +308,18 @@ async fn handle_default_route(
 
 	let result = get_ip_result(&ip_query, &settings.lang, &state).await;
 
+	let user_agent: Option<String> = match user_agent_header {
+		Some(TypedHeader(user_agent)) => Some(user_agent.to_string()),
+		None => None,
+	};
+
 	state.templating_engine.render_view(
 		&settings,
-		&View::Index{query: ip_query, result: result}
+		&View::Index{
+			query: ip_query,
+			result: result,
+			user_agent: user_agent,
+		}
 	).await
 }