fix in error codes

src/app.rs

@@ -5,12 +5,29 @@ use axum::{
     routing::{get, post},
     Router,
 };
-use tower::ServiceBuilder;
+use tower::{service_fn, ServiceBuilder};
 use tower_http::{services::ServeDir, set_header::SetResponseHeaderLayer, trace::TraceLayer};
 
 use crate::{api, auth, db, state::SharedState, websocket};
+use std::convert::Infallible;
 
 pub fn router(state: SharedState, static_dir: &str, upload_max_size_bytes: usize) -> Router {
+    let asset_version = state.asset_version.clone();
+    let asset_not_found = service_fn(move |_request| {
+        let asset_version = asset_version.clone();
+        async move {
+            Ok::<_, Infallible>(error_response(
+                StatusCode::NOT_FOUND,
+                "404",
+                "File not found",
+                "The requested application asset does not exist.",
+                "/",
+                "Home page",
+                &asset_version,
+            ))
+        }
+    });
+
     Router::new()
         .route("/", get(home))
         .route("/p/{slug}", get(pad))
@@ -78,7 +95,7 @@ pub fn router(state: SharedState, static_dir: &str, upload_max_size_bytes: usize
                     header::CACHE_CONTROL,
                     HeaderValue::from_static("private, must-revalidate"),
                 ))
-                .service(ServeDir::new(static_dir)),
+                .service(ServeDir::new(static_dir).not_found_service(asset_not_found)),
         )
         .fallback(not_found)
         .method_not_allowed_fallback(method_not_allowed)

src/config.rs

@@ -54,7 +54,7 @@ impl Config {
             upload_max_size_bytes: upload_max_size_mb
                 .checked_mul(1024 * 1024)
                 .ok_or("UPLOAD_MAX_SIZE_MB is too large")?,
-            asset_version: env_var("ASSET_VERSION", env!("CARGO_PKG_VERSION")),
+            asset_version: env!("CARGO_PKG_VERSION").to_owned(),
             smtp,
             registration_enabled: env_bool("REGISTRATION_ENABLED", false)?,
             frontend_log_level: env_log_level("FRONTEND_LOG_LEVEL", "warn")?,