fix(rustproxy): Use cooperative cancellation for background tasks, prune stale caches and metric entries, and switch tests to dynamic port allocation to avoid port conflicts
This commit is contained in:
@@ -167,6 +167,14 @@ impl HttpProxyService {
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self.backend_tls_config = config;
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}
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/// Prune caches for route IDs that are no longer active.
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/// Call after route updates to prevent unbounded growth.
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pub fn prune_stale_routes(&self, active_route_ids: &std::collections::HashSet<String>) {
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self.route_rate_limiters.retain(|k, _| active_route_ids.contains(k));
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self.regex_cache.clear();
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self.upstream_selector.reset_round_robin();
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}
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/// Handle an incoming HTTP connection on a plain TCP stream.
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pub async fn handle_connection(
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self: Arc<Self>,
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@@ -131,6 +131,14 @@ impl UpstreamSelector {
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}
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}
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/// Clear stale round-robin counters on route update.
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/// Resetting is harmless — counters just restart cycling from index 0.
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pub fn reset_round_robin(&self) {
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if let Ok(mut counters) = self.round_robin.lock() {
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counters.clear();
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}
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}
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fn ip_hash(addr: &SocketAddr) -> usize {
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let ip_str = addr.ip().to_string();
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let mut hash: usize = 5381;
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@@ -239,21 +239,26 @@ impl MetricsCollector {
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}
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if let Some(ip) = source_ip {
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self.ip_bytes_in
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.entry(ip.to_string())
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.or_insert_with(|| AtomicU64::new(0))
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.fetch_add(bytes_in, Ordering::Relaxed);
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self.ip_bytes_out
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.entry(ip.to_string())
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.or_insert_with(|| AtomicU64::new(0))
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.fetch_add(bytes_out, Ordering::Relaxed);
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// Only record per-IP stats if the IP still has active connections.
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// This prevents orphaned entries when record_bytes races with
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// connection_closed (which evicts all per-IP data on last close).
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if self.ip_connections.contains_key(ip) {
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self.ip_bytes_in
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.entry(ip.to_string())
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.or_insert_with(|| AtomicU64::new(0))
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.fetch_add(bytes_in, Ordering::Relaxed);
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self.ip_bytes_out
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.entry(ip.to_string())
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.or_insert_with(|| AtomicU64::new(0))
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.fetch_add(bytes_out, Ordering::Relaxed);
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// Accumulate into per-IP pending throughput counters (lock-free)
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let entry = self.ip_pending_tp
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.entry(ip.to_string())
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.or_insert_with(|| (AtomicU64::new(0), AtomicU64::new(0)));
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entry.0.fetch_add(bytes_in, Ordering::Relaxed);
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entry.1.fetch_add(bytes_out, Ordering::Relaxed);
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// Accumulate into per-IP pending throughput counters (lock-free)
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let entry = self.ip_pending_tp
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.entry(ip.to_string())
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.or_insert_with(|| (AtomicU64::new(0), AtomicU64::new(0)));
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entry.0.fetch_add(bytes_in, Ordering::Relaxed);
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entry.1.fetch_add(bytes_out, Ordering::Relaxed);
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}
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}
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}
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@@ -347,6 +352,15 @@ impl MetricsCollector {
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tracker.record_bytes(pending_reqs, 0);
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tracker.sample();
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}
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// Safety-net: prune orphaned per-IP entries that have no corresponding
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// ip_connections entry. This catches any entries created by a race between
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// record_bytes and connection_closed.
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self.ip_bytes_in.retain(|k, _| self.ip_connections.contains_key(k));
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self.ip_bytes_out.retain(|k, _| self.ip_connections.contains_key(k));
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self.ip_pending_tp.retain(|k, _| self.ip_connections.contains_key(k));
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self.ip_throughput.retain(|k, _| self.ip_connections.contains_key(k));
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self.ip_total_connections.retain(|k, _| self.ip_connections.contains_key(k));
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}
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/// Remove per-route metrics for route IDs that are no longer active.
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@@ -733,6 +747,49 @@ mod tests {
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assert!(collector.route_total_connections.get("route-c").is_some());
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}
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#[test]
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fn test_record_bytes_after_close_no_orphan() {
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let collector = MetricsCollector::with_retention(60);
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// Open a connection, record bytes, then close
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collector.connection_opened(Some("route-a"), Some("10.0.0.1"));
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collector.record_bytes(100, 200, Some("route-a"), Some("10.0.0.1"));
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collector.connection_closed(Some("route-a"), Some("10.0.0.1"));
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// IP should be fully evicted
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assert!(collector.ip_connections.get("10.0.0.1").is_none());
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// Now record_bytes arrives late (simulates race) — should NOT re-create entries
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collector.record_bytes(50, 75, Some("route-a"), Some("10.0.0.1"));
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assert!(collector.ip_bytes_in.get("10.0.0.1").is_none());
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assert!(collector.ip_bytes_out.get("10.0.0.1").is_none());
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assert!(collector.ip_pending_tp.get("10.0.0.1").is_none());
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// Global bytes should still be counted
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assert_eq!(collector.total_bytes_in.load(Ordering::Relaxed), 150);
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assert_eq!(collector.total_bytes_out.load(Ordering::Relaxed), 275);
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}
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#[test]
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fn test_sample_all_prunes_orphaned_ip_entries() {
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let collector = MetricsCollector::with_retention(60);
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// Manually insert orphaned entries (simulates the race before the guard)
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collector.ip_bytes_in.insert("orphan-ip".to_string(), AtomicU64::new(100));
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collector.ip_bytes_out.insert("orphan-ip".to_string(), AtomicU64::new(200));
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collector.ip_pending_tp.insert("orphan-ip".to_string(), (AtomicU64::new(0), AtomicU64::new(0)));
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// No ip_connections entry for "orphan-ip"
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assert!(collector.ip_connections.get("orphan-ip").is_none());
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// sample_all should prune the orphans
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collector.sample_all();
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assert!(collector.ip_bytes_in.get("orphan-ip").is_none());
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assert!(collector.ip_bytes_out.get("orphan-ip").is_none());
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assert!(collector.ip_pending_tp.get("orphan-ip").is_none());
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}
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#[test]
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fn test_throughput_history_in_snapshot() {
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let collector = MetricsCollector::with_retention(60);
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@@ -1,155 +0,0 @@
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use std::sync::atomic::{AtomicBool, AtomicU64, Ordering};
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use std::time::{Duration, Instant};
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/// Per-connection tracking record with atomics for lock-free updates.
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///
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/// Each field uses atomics so that the forwarding tasks can update
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/// bytes_received / bytes_sent / last_activity without holding any lock,
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/// while the zombie scanner reads them concurrently.
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pub struct ConnectionRecord {
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/// Unique connection ID assigned by the ConnectionTracker.
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pub id: u64,
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/// Wall-clock instant when this connection was created.
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pub created_at: Instant,
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/// Milliseconds since `created_at` when the last activity occurred.
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/// Updated atomically by the forwarding loops.
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pub last_activity: AtomicU64,
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/// Total bytes received from the client (inbound).
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pub bytes_received: AtomicU64,
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/// Total bytes sent to the client (outbound / from backend).
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pub bytes_sent: AtomicU64,
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/// True once the client side of the connection has closed.
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pub client_closed: AtomicBool,
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/// True once the backend side of the connection has closed.
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pub backend_closed: AtomicBool,
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/// Whether this connection uses TLS (affects zombie thresholds).
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pub is_tls: AtomicBool,
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/// Whether this connection has keep-alive semantics.
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pub has_keep_alive: AtomicBool,
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}
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impl ConnectionRecord {
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/// Create a new connection record with the given ID.
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/// All counters start at zero, all flags start as false.
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pub fn new(id: u64) -> Self {
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Self {
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id,
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created_at: Instant::now(),
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last_activity: AtomicU64::new(0),
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bytes_received: AtomicU64::new(0),
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bytes_sent: AtomicU64::new(0),
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client_closed: AtomicBool::new(false),
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backend_closed: AtomicBool::new(false),
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is_tls: AtomicBool::new(false),
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has_keep_alive: AtomicBool::new(false),
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}
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}
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/// Update `last_activity` to reflect the current elapsed time.
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pub fn touch(&self) {
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let elapsed_ms = self.created_at.elapsed().as_millis() as u64;
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self.last_activity.store(elapsed_ms, Ordering::Relaxed);
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}
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/// Record `n` bytes received from the client (inbound).
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pub fn record_bytes_in(&self, n: u64) {
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self.bytes_received.fetch_add(n, Ordering::Relaxed);
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self.touch();
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}
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/// Record `n` bytes sent to the client (outbound / from backend).
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pub fn record_bytes_out(&self, n: u64) {
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self.bytes_sent.fetch_add(n, Ordering::Relaxed);
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self.touch();
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}
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/// How long since the last activity on this connection.
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pub fn idle_duration(&self) -> Duration {
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let last_ms = self.last_activity.load(Ordering::Relaxed);
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let age_ms = self.created_at.elapsed().as_millis() as u64;
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Duration::from_millis(age_ms.saturating_sub(last_ms))
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}
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/// Total age of this connection (time since creation).
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pub fn age(&self) -> Duration {
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self.created_at.elapsed()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use std::thread;
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#[test]
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fn test_new_record() {
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let record = ConnectionRecord::new(42);
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assert_eq!(record.id, 42);
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assert_eq!(record.bytes_received.load(Ordering::Relaxed), 0);
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assert_eq!(record.bytes_sent.load(Ordering::Relaxed), 0);
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assert!(!record.client_closed.load(Ordering::Relaxed));
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assert!(!record.backend_closed.load(Ordering::Relaxed));
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assert!(!record.is_tls.load(Ordering::Relaxed));
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assert!(!record.has_keep_alive.load(Ordering::Relaxed));
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}
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#[test]
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fn test_record_bytes() {
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let record = ConnectionRecord::new(1);
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record.record_bytes_in(100);
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record.record_bytes_in(200);
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assert_eq!(record.bytes_received.load(Ordering::Relaxed), 300);
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record.record_bytes_out(50);
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record.record_bytes_out(75);
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assert_eq!(record.bytes_sent.load(Ordering::Relaxed), 125);
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}
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#[test]
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fn test_touch_updates_activity() {
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let record = ConnectionRecord::new(1);
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assert_eq!(record.last_activity.load(Ordering::Relaxed), 0);
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// Sleep briefly so elapsed time is nonzero
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thread::sleep(Duration::from_millis(10));
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record.touch();
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let activity = record.last_activity.load(Ordering::Relaxed);
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assert!(activity >= 10, "last_activity should be at least 10ms, got {}", activity);
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}
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#[test]
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fn test_idle_duration() {
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let record = ConnectionRecord::new(1);
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// Initially idle_duration ~ age since last_activity is 0
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thread::sleep(Duration::from_millis(20));
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let idle = record.idle_duration();
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assert!(idle >= Duration::from_millis(20));
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// After touch, idle should be near zero
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record.touch();
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let idle = record.idle_duration();
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assert!(idle < Duration::from_millis(10));
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}
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#[test]
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fn test_age() {
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let record = ConnectionRecord::new(1);
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thread::sleep(Duration::from_millis(20));
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let age = record.age();
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assert!(age >= Duration::from_millis(20));
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}
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#[test]
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fn test_flags() {
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let record = ConnectionRecord::new(1);
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record.client_closed.store(true, Ordering::Relaxed);
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record.is_tls.store(true, Ordering::Relaxed);
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record.has_keep_alive.store(true, Ordering::Relaxed);
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assert!(record.client_closed.load(Ordering::Relaxed));
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assert!(!record.backend_closed.load(Ordering::Relaxed));
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assert!(record.is_tls.load(Ordering::Relaxed));
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assert!(record.has_keep_alive.load(Ordering::Relaxed));
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}
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}
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@@ -2,24 +2,9 @@ use dashmap::DashMap;
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use std::collections::VecDeque;
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use std::net::IpAddr;
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use std::sync::atomic::{AtomicU64, Ordering};
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use std::sync::Arc;
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use std::time::{Duration, Instant};
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use tokio_util::sync::CancellationToken;
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use tracing::{debug, warn};
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use super::connection_record::ConnectionRecord;
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/// Thresholds for zombie detection (non-TLS connections).
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const HALF_ZOMBIE_TIMEOUT_PLAIN: Duration = Duration::from_secs(30);
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/// Thresholds for zombie detection (TLS connections).
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const HALF_ZOMBIE_TIMEOUT_TLS: Duration = Duration::from_secs(300);
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/// Stuck connection timeout (non-TLS): received data but never sent any.
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const STUCK_TIMEOUT_PLAIN: Duration = Duration::from_secs(60);
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/// Stuck connection timeout (TLS): received data but never sent any.
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const STUCK_TIMEOUT_TLS: Duration = Duration::from_secs(300);
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/// Tracks active connections per IP and enforces per-IP limits and rate limiting.
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/// Also maintains per-connection records for zombie detection.
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pub struct ConnectionTracker {
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/// Active connection counts per IP
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active: DashMap<IpAddr, AtomicU64>,
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@@ -29,10 +14,6 @@ pub struct ConnectionTracker {
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max_per_ip: Option<u64>,
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/// Maximum new connections per minute per IP (None = unlimited)
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rate_limit_per_minute: Option<u64>,
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/// Per-connection tracking records for zombie detection
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connections: DashMap<u64, Arc<ConnectionRecord>>,
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/// Monotonically increasing connection ID counter
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next_id: AtomicU64,
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}
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impl ConnectionTracker {
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@@ -42,8 +23,6 @@ impl ConnectionTracker {
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timestamps: DashMap::new(),
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max_per_ip,
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rate_limit_per_minute,
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connections: DashMap::new(),
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next_id: AtomicU64::new(1),
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}
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}
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@@ -112,118 +91,27 @@ impl ConnectionTracker {
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.unwrap_or(0)
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}
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/// Prune stale timestamp entries for IPs that have no active connections
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/// and no recent timestamps. This cleans up entries left by rate-limited IPs
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/// that never had connection_opened called.
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pub fn cleanup_stale_timestamps(&self) {
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if self.rate_limit_per_minute.is_none() {
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return; // No rate limiting — timestamps map should be empty
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}
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let now = Instant::now();
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let one_minute = Duration::from_secs(60);
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self.timestamps.retain(|ip, timestamps| {
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timestamps.retain(|t| now.duration_since(*t) < one_minute);
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// Keep if there are active connections or recent timestamps
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!timestamps.is_empty() || self.active.contains_key(ip)
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});
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}
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/// Get the total number of tracked IPs.
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pub fn tracked_ips(&self) -> usize {
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self.active.len()
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}
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/// Register a new connection and return its tracking record.
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///
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/// The returned `Arc<ConnectionRecord>` should be passed to the forwarding
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/// loop so it can update bytes / activity atomics in real time.
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pub fn register_connection(&self, is_tls: bool) -> Arc<ConnectionRecord> {
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let id = self.next_id.fetch_add(1, Ordering::Relaxed);
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let record = Arc::new(ConnectionRecord::new(id));
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record.is_tls.store(is_tls, Ordering::Relaxed);
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self.connections.insert(id, Arc::clone(&record));
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record
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}
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/// Remove a connection record when the connection is fully closed.
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pub fn unregister_connection(&self, id: u64) {
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self.connections.remove(&id);
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}
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/// Scan all tracked connections and return IDs of zombie connections.
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///
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/// A connection is considered a zombie in any of these cases:
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/// - **Full zombie**: both `client_closed` and `backend_closed` are true.
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/// - **Half zombie**: one side closed for longer than the threshold
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/// (5 min for TLS, 30s for non-TLS).
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/// - **Stuck**: `bytes_received > 0` but `bytes_sent == 0` for longer
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/// than the stuck threshold (5 min for TLS, 60s for non-TLS).
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pub fn scan_zombies(&self) -> Vec<u64> {
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let mut zombies = Vec::new();
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for entry in self.connections.iter() {
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let record = entry.value();
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let id = *entry.key();
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let is_tls = record.is_tls.load(Ordering::Relaxed);
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let client_closed = record.client_closed.load(Ordering::Relaxed);
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let backend_closed = record.backend_closed.load(Ordering::Relaxed);
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let idle = record.idle_duration();
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let bytes_in = record.bytes_received.load(Ordering::Relaxed);
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let bytes_out = record.bytes_sent.load(Ordering::Relaxed);
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// Full zombie: both sides closed
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if client_closed && backend_closed {
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zombies.push(id);
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continue;
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}
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// Half zombie: one side closed for too long
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let half_timeout = if is_tls {
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HALF_ZOMBIE_TIMEOUT_TLS
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} else {
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HALF_ZOMBIE_TIMEOUT_PLAIN
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};
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if (client_closed || backend_closed) && idle >= half_timeout {
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zombies.push(id);
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continue;
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}
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// Stuck: received data but never sent anything for too long
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let stuck_timeout = if is_tls {
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STUCK_TIMEOUT_TLS
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} else {
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STUCK_TIMEOUT_PLAIN
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};
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if bytes_in > 0 && bytes_out == 0 && idle >= stuck_timeout {
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zombies.push(id);
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}
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}
|
||||
|
||||
zombies
|
||||
}
|
||||
|
||||
/// Start a background task that periodically scans for zombie connections.
|
||||
///
|
||||
/// The scanner runs every 10 seconds and logs any zombies it finds.
|
||||
/// It stops when the provided `CancellationToken` is cancelled.
|
||||
pub fn start_zombie_scanner(self: &Arc<Self>, cancel: CancellationToken) {
|
||||
let tracker = Arc::clone(self);
|
||||
tokio::spawn(async move {
|
||||
let interval = Duration::from_secs(10);
|
||||
loop {
|
||||
tokio::select! {
|
||||
_ = cancel.cancelled() => {
|
||||
debug!("Zombie scanner shutting down");
|
||||
break;
|
||||
}
|
||||
_ = tokio::time::sleep(interval) => {
|
||||
let zombies = tracker.scan_zombies();
|
||||
if !zombies.is_empty() {
|
||||
warn!(
|
||||
"Cleaning up {} zombie connection(s): {:?}",
|
||||
zombies.len(),
|
||||
zombies
|
||||
);
|
||||
for id in &zombies {
|
||||
tracker.unregister_connection(*id);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/// Get the total number of tracked connections (with records).
|
||||
pub fn total_connections(&self) -> usize {
|
||||
self.connections.len()
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
@@ -333,98 +221,27 @@ mod tests {
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_register_unregister_connection() {
|
||||
let tracker = ConnectionTracker::new(None, None);
|
||||
assert_eq!(tracker.total_connections(), 0);
|
||||
fn test_cleanup_stale_timestamps() {
|
||||
// Rate limit of 100/min so timestamps are tracked
|
||||
let tracker = ConnectionTracker::new(None, Some(100));
|
||||
let ip: IpAddr = "10.0.0.1".parse().unwrap();
|
||||
|
||||
let record1 = tracker.register_connection(false);
|
||||
assert_eq!(tracker.total_connections(), 1);
|
||||
assert!(!record1.is_tls.load(Ordering::Relaxed));
|
||||
// try_accept adds a timestamp entry
|
||||
assert!(tracker.try_accept(&ip));
|
||||
|
||||
let record2 = tracker.register_connection(true);
|
||||
assert_eq!(tracker.total_connections(), 2);
|
||||
assert!(record2.is_tls.load(Ordering::Relaxed));
|
||||
// Simulate: connection was rate-limited and never accepted,
|
||||
// so no connection_opened / connection_closed pair
|
||||
assert!(tracker.timestamps.get(&ip).is_some());
|
||||
assert!(tracker.active.get(&ip).is_none()); // never opened
|
||||
|
||||
// IDs should be unique
|
||||
assert_ne!(record1.id, record2.id);
|
||||
// Cleanup won't remove it yet because timestamp is recent
|
||||
tracker.cleanup_stale_timestamps();
|
||||
assert!(tracker.timestamps.get(&ip).is_some());
|
||||
|
||||
tracker.unregister_connection(record1.id);
|
||||
assert_eq!(tracker.total_connections(), 1);
|
||||
|
||||
tracker.unregister_connection(record2.id);
|
||||
assert_eq!(tracker.total_connections(), 0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_full_zombie_detection() {
|
||||
let tracker = ConnectionTracker::new(None, None);
|
||||
let record = tracker.register_connection(false);
|
||||
|
||||
// Not a zombie initially
|
||||
assert!(tracker.scan_zombies().is_empty());
|
||||
|
||||
// Set both sides closed -> full zombie
|
||||
record.client_closed.store(true, Ordering::Relaxed);
|
||||
record.backend_closed.store(true, Ordering::Relaxed);
|
||||
|
||||
let zombies = tracker.scan_zombies();
|
||||
assert_eq!(zombies.len(), 1);
|
||||
assert_eq!(zombies[0], record.id);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_half_zombie_not_triggered_immediately() {
|
||||
let tracker = ConnectionTracker::new(None, None);
|
||||
let record = tracker.register_connection(false);
|
||||
record.touch(); // mark activity now
|
||||
|
||||
// Only one side closed, but just now -> not a zombie yet
|
||||
record.client_closed.store(true, Ordering::Relaxed);
|
||||
assert!(tracker.scan_zombies().is_empty());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_stuck_connection_not_triggered_immediately() {
|
||||
let tracker = ConnectionTracker::new(None, None);
|
||||
let record = tracker.register_connection(false);
|
||||
record.touch(); // mark activity now
|
||||
|
||||
// Has received data but sent nothing -> but just started, not stuck yet
|
||||
record.bytes_received.store(1000, Ordering::Relaxed);
|
||||
assert!(tracker.scan_zombies().is_empty());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_unregister_removes_from_zombie_scan() {
|
||||
let tracker = ConnectionTracker::new(None, None);
|
||||
let record = tracker.register_connection(false);
|
||||
let id = record.id;
|
||||
|
||||
// Make it a full zombie
|
||||
record.client_closed.store(true, Ordering::Relaxed);
|
||||
record.backend_closed.store(true, Ordering::Relaxed);
|
||||
assert_eq!(tracker.scan_zombies().len(), 1);
|
||||
|
||||
// Unregister should remove it
|
||||
tracker.unregister_connection(id);
|
||||
assert!(tracker.scan_zombies().is_empty());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_total_connections() {
|
||||
let tracker = ConnectionTracker::new(None, None);
|
||||
assert_eq!(tracker.total_connections(), 0);
|
||||
|
||||
let r1 = tracker.register_connection(false);
|
||||
let r2 = tracker.register_connection(true);
|
||||
let r3 = tracker.register_connection(false);
|
||||
assert_eq!(tracker.total_connections(), 3);
|
||||
|
||||
tracker.unregister_connection(r2.id);
|
||||
assert_eq!(tracker.total_connections(), 2);
|
||||
|
||||
tracker.unregister_connection(r1.id);
|
||||
tracker.unregister_connection(r3.id);
|
||||
assert_eq!(tracker.total_connections(), 0);
|
||||
// After expiry (use 0-second window trick: create tracker with 0 rate)
|
||||
// Actually, we can't fast-forward time easily, so just verify the cleanup
|
||||
// doesn't panic and handles the no-rate-limit case
|
||||
let tracker2 = ConnectionTracker::new(None, None);
|
||||
tracker2.cleanup_stale_timestamps(); // should be a no-op
|
||||
}
|
||||
}
|
||||
|
||||
@@ -8,7 +8,6 @@ pub mod sni_parser;
|
||||
pub mod forwarder;
|
||||
pub mod proxy_protocol;
|
||||
pub mod tls_handler;
|
||||
pub mod connection_record;
|
||||
pub mod connection_tracker;
|
||||
pub mod socket_relay;
|
||||
pub mod socket_opts;
|
||||
@@ -18,7 +17,6 @@ pub use sni_parser::*;
|
||||
pub use forwarder::*;
|
||||
pub use proxy_protocol::*;
|
||||
pub use tls_handler::*;
|
||||
pub use connection_record::*;
|
||||
pub use connection_tracker::*;
|
||||
pub use socket_relay::*;
|
||||
pub use socket_opts::*;
|
||||
|
||||
@@ -41,6 +41,25 @@ impl Drop for ConnectionGuard {
|
||||
}
|
||||
}
|
||||
|
||||
/// RAII guard that calls ConnectionTracker::connection_closed on drop.
|
||||
/// Ensures per-IP tracking is cleaned up on ALL exit paths — normal, error, or panic.
|
||||
struct ConnectionTrackerGuard {
|
||||
tracker: Arc<ConnectionTracker>,
|
||||
ip: std::net::IpAddr,
|
||||
}
|
||||
|
||||
impl ConnectionTrackerGuard {
|
||||
fn new(tracker: Arc<ConnectionTracker>, ip: std::net::IpAddr) -> Self {
|
||||
Self { tracker, ip }
|
||||
}
|
||||
}
|
||||
|
||||
impl Drop for ConnectionTrackerGuard {
|
||||
fn drop(&mut self) {
|
||||
self.tracker.connection_closed(&self.ip);
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Error)]
|
||||
pub enum ListenerError {
|
||||
#[error("Failed to bind port {port}: {source}")]
|
||||
@@ -351,6 +370,16 @@ impl TcpListenerManager {
|
||||
self.route_manager.store(route_manager);
|
||||
}
|
||||
|
||||
/// Prune HTTP proxy caches for route IDs that are no longer active.
|
||||
pub fn prune_http_proxy_caches(&self, active_route_ids: &std::collections::HashSet<String>) {
|
||||
self.http_proxy.prune_stale_routes(active_route_ids);
|
||||
}
|
||||
|
||||
/// Get a reference to the connection tracker.
|
||||
pub fn conn_tracker(&self) -> &Arc<ConnectionTracker> {
|
||||
&self.conn_tracker
|
||||
}
|
||||
|
||||
/// Get a reference to the metrics collector.
|
||||
pub fn metrics(&self) -> &Arc<MetricsCollector> {
|
||||
&self.metrics
|
||||
@@ -429,13 +458,14 @@ impl TcpListenerManager {
|
||||
tokio::spawn(async move {
|
||||
// Move permit into the task — auto-releases on drop
|
||||
let _permit = permit;
|
||||
// RAII guard ensures connection_closed is called on all paths
|
||||
let _ct_guard = ConnectionTrackerGuard::new(ct, ip);
|
||||
let result = Self::handle_connection(
|
||||
stream, port, peer_addr, rm, m, tc, sa, hp, cc, cn, sr,
|
||||
).await;
|
||||
if let Err(e) = result {
|
||||
debug!("Connection error from {}: {}", peer_addr, e);
|
||||
}
|
||||
ct.connection_closed(&ip);
|
||||
});
|
||||
}
|
||||
Err(e) => {
|
||||
@@ -1372,3 +1402,13 @@ impl TcpListenerManager {
|
||||
(bytes_in, bytes_out)
|
||||
}
|
||||
}
|
||||
|
||||
/// Safety net: cancel and abort all listener tasks if dropped without graceful_stop().
|
||||
impl Drop for TcpListenerManager {
|
||||
fn drop(&mut self) {
|
||||
self.cancel_token.cancel();
|
||||
for (_, handle) in self.listeners.drain() {
|
||||
handle.abort();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -51,6 +51,7 @@ use rustproxy_passthrough::{TcpListenerManager, TlsCertConfig, ConnectionConfig}
|
||||
use rustproxy_metrics::{MetricsCollector, Metrics, Statistics};
|
||||
use rustproxy_tls::{CertManager, CertStore, CertBundle, CertMetadata, CertSource};
|
||||
use rustproxy_nftables::{NftManager, rule_builder};
|
||||
use tokio_util::sync::CancellationToken;
|
||||
|
||||
/// Certificate status.
|
||||
#[derive(Debug, Clone)]
|
||||
@@ -79,6 +80,8 @@ pub struct RustProxy {
|
||||
socket_handler_relay: Arc<std::sync::RwLock<Option<String>>>,
|
||||
/// Dynamically loaded certificates (via loadCertificate IPC), independent of CertManager.
|
||||
loaded_certs: HashMap<String, TlsCertConfig>,
|
||||
/// Cancellation token for cooperative shutdown of background tasks.
|
||||
cancel_token: CancellationToken,
|
||||
}
|
||||
|
||||
impl RustProxy {
|
||||
@@ -121,6 +124,7 @@ impl RustProxy {
|
||||
started_at: None,
|
||||
socket_handler_relay: Arc::new(std::sync::RwLock::new(None)),
|
||||
loaded_certs: HashMap::new(),
|
||||
cancel_token: CancellationToken::new(),
|
||||
})
|
||||
}
|
||||
|
||||
@@ -299,18 +303,26 @@ impl RustProxy {
|
||||
self.started = true;
|
||||
self.started_at = Some(Instant::now());
|
||||
|
||||
// Start the throughput sampling task
|
||||
// Start the throughput sampling task with cooperative cancellation
|
||||
let metrics = Arc::clone(&self.metrics);
|
||||
let conn_tracker = self.listener_manager.as_ref().unwrap().conn_tracker().clone();
|
||||
let interval_ms = self.options.metrics.as_ref()
|
||||
.and_then(|m| m.sample_interval_ms)
|
||||
.unwrap_or(1000);
|
||||
let sampling_cancel = self.cancel_token.clone();
|
||||
self.sampling_handle = Some(tokio::spawn(async move {
|
||||
let mut interval = tokio::time::interval(
|
||||
std::time::Duration::from_millis(interval_ms)
|
||||
);
|
||||
loop {
|
||||
interval.tick().await;
|
||||
metrics.sample_all();
|
||||
tokio::select! {
|
||||
_ = sampling_cancel.cancelled() => break,
|
||||
_ = interval.tick() => {
|
||||
metrics.sample_all();
|
||||
// Periodically clean up stale rate-limit timestamp entries
|
||||
conn_tracker.cleanup_stale_timestamps();
|
||||
}
|
||||
}
|
||||
}
|
||||
}));
|
||||
|
||||
@@ -457,51 +469,59 @@ impl RustProxy {
|
||||
.unwrap_or(80);
|
||||
|
||||
let interval = std::time::Duration::from_secs(check_interval_hours as u64 * 3600);
|
||||
let renewal_cancel = self.cancel_token.clone();
|
||||
|
||||
let handle = tokio::spawn(async move {
|
||||
loop {
|
||||
tokio::time::sleep(interval).await;
|
||||
debug!("Certificate renewal check triggered (interval: {}h)", check_interval_hours);
|
||||
tokio::select! {
|
||||
_ = renewal_cancel.cancelled() => {
|
||||
debug!("Renewal timer shutting down");
|
||||
break;
|
||||
}
|
||||
_ = tokio::time::sleep(interval) => {
|
||||
debug!("Certificate renewal check triggered (interval: {}h)", check_interval_hours);
|
||||
|
||||
// Check which domains need renewal
|
||||
let domains = {
|
||||
let cm = cm_arc.lock().await;
|
||||
cm.check_renewals()
|
||||
};
|
||||
// Check which domains need renewal
|
||||
let domains = {
|
||||
let cm = cm_arc.lock().await;
|
||||
cm.check_renewals()
|
||||
};
|
||||
|
||||
if domains.is_empty() {
|
||||
debug!("No certificates need renewal");
|
||||
continue;
|
||||
}
|
||||
|
||||
info!("Renewing {} certificate(s)", domains.len());
|
||||
|
||||
// Start challenge server for renewals
|
||||
let mut cs = challenge_server::ChallengeServer::new();
|
||||
if let Err(e) = cs.start(acme_port).await {
|
||||
error!("Failed to start challenge server for renewal: {}", e);
|
||||
continue;
|
||||
}
|
||||
|
||||
for domain in &domains {
|
||||
let cs_ref = &cs;
|
||||
let mut cm = cm_arc.lock().await;
|
||||
let result = cm.renew_domain(domain, |token, key_auth| {
|
||||
cs_ref.set_challenge(token, key_auth);
|
||||
async {}
|
||||
}).await;
|
||||
|
||||
match result {
|
||||
Ok(_bundle) => {
|
||||
info!("Successfully renewed certificate for {}", domain);
|
||||
if domains.is_empty() {
|
||||
debug!("No certificates need renewal");
|
||||
continue;
|
||||
}
|
||||
Err(e) => {
|
||||
error!("Failed to renew certificate for {}: {}", domain, e);
|
||||
|
||||
info!("Renewing {} certificate(s)", domains.len());
|
||||
|
||||
// Start challenge server for renewals
|
||||
let mut cs = challenge_server::ChallengeServer::new();
|
||||
if let Err(e) = cs.start(acme_port).await {
|
||||
error!("Failed to start challenge server for renewal: {}", e);
|
||||
continue;
|
||||
}
|
||||
|
||||
for domain in &domains {
|
||||
let cs_ref = &cs;
|
||||
let mut cm = cm_arc.lock().await;
|
||||
let result = cm.renew_domain(domain, |token, key_auth| {
|
||||
cs_ref.set_challenge(token, key_auth);
|
||||
async {}
|
||||
}).await;
|
||||
|
||||
match result {
|
||||
Ok(_bundle) => {
|
||||
info!("Successfully renewed certificate for {}", domain);
|
||||
}
|
||||
Err(e) => {
|
||||
error!("Failed to renew certificate for {}: {}", domain, e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
cs.stop().await;
|
||||
}
|
||||
}
|
||||
|
||||
cs.stop().await;
|
||||
}
|
||||
});
|
||||
|
||||
@@ -516,14 +536,17 @@ impl RustProxy {
|
||||
|
||||
info!("Stopping RustProxy...");
|
||||
|
||||
// Stop sampling task
|
||||
// Signal all background tasks to stop cooperatively
|
||||
self.cancel_token.cancel();
|
||||
|
||||
// Await sampling task (cooperative shutdown)
|
||||
if let Some(handle) = self.sampling_handle.take() {
|
||||
handle.abort();
|
||||
let _ = handle.await;
|
||||
}
|
||||
|
||||
// Stop renewal timer
|
||||
// Await renewal timer (cooperative shutdown)
|
||||
if let Some(handle) = self.renewal_handle.take() {
|
||||
handle.abort();
|
||||
let _ = handle.await;
|
||||
}
|
||||
|
||||
// Stop challenge server if running
|
||||
@@ -545,6 +568,8 @@ impl RustProxy {
|
||||
}
|
||||
self.listener_manager = None;
|
||||
self.started = false;
|
||||
// Reset cancel token so proxy can be restarted
|
||||
self.cancel_token = CancellationToken::new();
|
||||
|
||||
info!("RustProxy stopped");
|
||||
Ok(())
|
||||
@@ -585,6 +610,8 @@ impl RustProxy {
|
||||
// Update listener manager
|
||||
if let Some(ref mut listener) = self.listener_manager {
|
||||
listener.update_route_manager(Arc::clone(&new_manager));
|
||||
// Prune HTTP proxy caches (rate limiters, regex cache, round-robin counters)
|
||||
listener.prune_http_proxy_caches(&active_route_ids);
|
||||
|
||||
// Update TLS configs
|
||||
let mut tls_configs = Self::extract_tls_configs(&routes);
|
||||
@@ -983,3 +1010,21 @@ impl RustProxy {
|
||||
configs
|
||||
}
|
||||
}
|
||||
|
||||
/// Safety net: abort background tasks if RustProxy is dropped without calling stop().
|
||||
/// Normal shutdown should still use stop() for graceful behavior.
|
||||
impl Drop for RustProxy {
|
||||
fn drop(&mut self) {
|
||||
self.cancel_token.cancel();
|
||||
if let Some(handle) = self.sampling_handle.take() {
|
||||
handle.abort();
|
||||
}
|
||||
if let Some(handle) = self.renewal_handle.take() {
|
||||
handle.abort();
|
||||
}
|
||||
// Cancel the listener manager's token and abort accept loops
|
||||
if let Some(ref mut listener) = self.listener_manager {
|
||||
listener.stop_all();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user