feat: added state pings

Cargo.lock

@@ -1306,30 +1306,9 @@ dependencies = [
  "memchr",
  "parking_lot",
  "procfs",
- "protobuf",
  "thiserror 2.0.12",
 ]
 
-[[package]]
-name = "protobuf"
-version = "3.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d65a1d4ddae7d8b5de68153b48f6aa3bba8cb002b243dbdbc55a5afbc98f99f4"
-dependencies = [
- "once_cell",
- "protobuf-support",
- "thiserror 1.0.69",
-]
-
-[[package]]
-name = "protobuf-support"
-version = "3.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e36c2f31e0a47f9280fb347ef5e461ffcd2c52dd520d8e216b52f93b0b0d7d6"
-dependencies = [
- "thiserror 1.0.69",
-]
-
 [[package]]
 name = "quinn"
 version = "0.11.8"

Cargo.toml

@@ -41,4 +41,4 @@ rand = "0.9"
 axum = { version = "0.8", features = ["ws", "macros", "http2"] }
 tower-http = { version = "0.6", features = ["trace"] }
 tokio = { version = "1.41", features = ["full"] }
-prometheus = { version = "0.14", features = ["process"] }
+prometheus = { version = "0.14", default-features = false, features = ["process"] }

src/api/figura/websocket/handler.rs

@@ -66,6 +66,9 @@ async fn handle_socket(mut ws: WebSocket, state: AppState) {
 
 #[instrument(skip_all, fields(nickname = %session.user.nickname))]
 async fn main_worker(session: &mut WSSession, ws: &mut WebSocket, state: &AppState) -> anyhow::Result<()> {
+    state.state_pings.insert(session.user.uuid, vec![]);
+    let mut next_state_ping = false;
+
     tracing::debug!("WebSocket control for {} is transferred to the main worker", session.user.nickname);
     loop {
         tokio::select! {
@@ -83,18 +86,35 @@ async fn main_worker(session: &mut WSSession, ws: &mut WebSocket, state: &AppSta
                     },
                 };
 
+                tracing::trace!(ping = ?external_msg);
                 // Processing message
                 match external_msg {
                     C2SMessage::Token(_) => bail!("authentication passed, but the client sent the Token again"),
                     C2SMessage::Ping(func_id, echo, data) => {
-                        let s2c_ping: Vec<u8> = S2CMessage::Ping(session.user.uuid, func_id, echo, data).into();
+                        if !(func_id == 252645133) {
+                            // Normal procedure
+                            let s2c_ping: Vec<u8> = S2CMessage::Ping(session.user.uuid, func_id, echo, data).into();
                             
-                        // Echo check
-                        if echo {
-                            ws.send(Message::Binary(s2c_ping.clone().into())).await?
+                            // State ping storing
+                            if next_state_ping {
+                                let mut vec = state.state_pings.get_mut(&session.user.uuid).unwrap();
+                                vec.push(s2c_ping.clone().into());
+                                next_state_ping = false;
+                            }
+                            // Echo check
+                            if echo {
+                                ws.send(Message::Binary(s2c_ping.clone().into())).await?
+                            }
+                            // Sending to others
+                            let _ = session.subs_tx.send(s2c_ping);
+                        } else {
+                            // State ping procedure
+                            match data[1] {
+                                0 => { state.state_pings.insert(session.user.uuid, vec![]); },
+                                1 => { next_state_ping = !next_state_ping; },
+                                _ => {}
+                            }
                         }
-                        // Sending to others
-                        let _ = session.subs_tx.send(s2c_ping);
                     },
                     C2SMessage::Sub(uuid) => {
                         tracing::debug!("[WebSocket] {} subscribes to {}", session.user.nickname, uuid);
@@ -112,6 +132,16 @@ async fn main_worker(session: &mut WSSession, ws: &mut WebSocket, state: &AppSta
                             };
                             let handle = tokio::spawn(sub_worker(session.own_tx.clone(), rx)).abort_handle();
                             session.sub_workers_aborthandles.insert(uuid, handle);
+                            
+                            // Apply state pings / bmpdpvw / 252645133
+                            if let Some(vec) = state.state_pings.get(&uuid) {
+                                tokio::time::sleep(tokio::time::Duration::from_secs(1)).await;
+                                for ping in &*vec {
+                                    let msg = Message::Binary(ping.clone().into());
+                                    tracing::trace!(msg = ?msg);
+                                    ws.send(msg).await?
+                                }
+                            };
                         }
                     },
                     C2SMessage::Unsub(uuid) => {

src/api/figura/websocket/types/session.rs

@@ -1,5 +1,6 @@
 use dashmap::DashMap;
 use tokio::{sync::{broadcast, mpsc}, task::AbortHandle};
+// use uuid::Uuid;
 
 pub struct WSSession {
     pub user: crate::auth::Userinfo,
@@ -11,5 +12,6 @@ pub struct WSSession {
 
 pub enum SessionMessage {
     Ping(Vec<u8>),
+    // Sub(Uuid),
     Banned,
 }

src/main.rs

@@ -158,6 +158,7 @@ async fn app() -> Result<bool> {
         uptime: Instant::now(),
         user_manager: Arc::new(UManager::new()),
         session: Arc::new(DashMap::new()),
+        state_pings: Arc::new(DashMap::new()),
         subscribes: Arc::new(DashMap::new()),
         figura_versions: Arc::new(RwLock::new(None)),
         config: Arc::new(RwLock::new(config.clone())),
@@ -200,16 +201,17 @@ async fn app() -> Result<bool> {
         .route("/ws", get(ws))
         .merge(metrics::metrics_router(config.metrics_enabled))
         .with_state(state) 
-        .layer(TraceLayer::new_for_http()
-            // .on_request(|request: &axum::http::Request<_>, _span: &tracing::Span| {
-            //     // only for developing purposes
-            //     tracing::trace!(headers = ?request.headers(), "started processing request");
-            // })
-            .on_response(|response: &axum::http::Response<_>, latency: std::time::Duration, _span: &tracing::Span| {
-                tracing::trace!(latency = ?latency, status = ?response.status(), "finished processing request");
-            })
-            .on_request(())
-        )
+        // .layer(TraceLayer::new_for_http()
+        //     // .on_request(|request: &axum::http::Request<_>, _span: &tracing::Span| {
+        //     //     // only for developing purposes
+        //     //     tracing::trace!(headers = ?request.headers(), "started processing request");
+        //     // })
+        //     .on_response(|response: &axum::http::Response<_>, latency: std::time::Duration, _span: &tracing::Span| {
+        //         tracing::trace!(latency = ?latency, status = ?response.status(), "finished processing request");
+        //     })
+        //     .on_request(())
+        // )
+        .layer(TraceLayer::new_for_http().on_request(()))
         .layer(axum::middleware::from_fn(track_metrics))
         .route("/health", get(|| async { "ok" }));
 

src/state/state.rs

@@ -14,6 +14,8 @@ pub struct AppState {
     pub user_manager: Arc<UManager>,
     /// Send into WebSocket
     pub session: Arc<DashMap<Uuid, mpsc::Sender<SessionMessage>>>,
+
+    pub state_pings: Arc<DashMap<Uuid, Vec<Box<[u8]>>>>,
     /// Send messages for subscribers
     pub subscribes: Arc<DashMap<Uuid, broadcast::Sender<Vec<u8>>>>,
     /// Current configuration