Initial commit

2026-08-01 20:56:44 +02:00
commit 7840f38a7b
9 changed files with 2628 additions and 0 deletions
@@ -0,0 +1,56 @@
+use std::path::PathBuf;
+
+use axum::{
+    body::Body,
+    extract::Request,
+    middleware::Next,
+    response::{IntoResponse, Response},
+};
+use http::header;
+
+pub async fn flatpak_headers_middleware(req: Request<Body>, next: Next) -> Response<Body> {
+    let path = req.uri().path().to_string();
+    let mut response = next.run(req).await;
+
+    // Add content-type for Flatpak metadata files.
+    if path.ends_with(".flatpakrepo") || path.ends_with(".flatpakref") || path == "/config" {
+        response.headers_mut().insert(
+            header::CONTENT_TYPE,
+            "application/octet-stream".parse().unwrap(),
+        );
+    }
+
+    // Add cache-control based on OSTree path semantics.
+    let cache_control = if path.starts_with("/objects/")
+        || path.starts_with("/deltas/")
+        || path.starts_with("/extensions/")
+    {
+        // Content-addressed and immutable.
+        "public, immutable, max-age=31536000"
+    } else if path.starts_with("/refs/") {
+        // Refs may change on update.
+        "public, must-revalidate, max-age=60"
+    } else {
+        return response;
+    };
+
+    response
+        .headers_mut()
+        .insert(header::CACHE_CONTROL, cache_control.parse().unwrap());
+
+    response
+}
+
+pub async fn serve_flatpakrepo(repo_path: PathBuf) -> impl IntoResponse {
+    let path = repo_path.join("example.flatpakrepo");
+    match tokio::fs::read_to_string(&path).await {
+        Ok(contents) => (
+            [(header::CONTENT_TYPE, "application/octet-stream")],
+            contents,
+        ),
+        Err(_) => (
+            [(header::CONTENT_TYPE, "text/plain")],
+            "No .flatpakrepo file found".to_string(),
+        ),
+    }
+}