GetConnection() and GetAuthed() may return empty.

handlers.go

@@ -36,7 +36,7 @@ func (rl *Relay) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 func (rl *Relay) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
 	for _, reject := range rl.RejectConnection {
 		if reject(r) {
-			w.WriteHeader(418) // I'm a teapot
+			w.WriteHeader(429) // Too many requests
 			return
 		}
 	}

policies/events.go

@@ -67,31 +67,10 @@ func PreventLargeTags(maxTagValueLen int) func(context.Context, *nostr.Event) (b
 // RestrictToSpecifiedKinds returns a function that can be used as a RejectFilter that will reject
 // any events with kinds different than the specified ones.
 func RestrictToSpecifiedKinds(kinds ...uint16) func(context.Context, *nostr.Event) (bool, string) {
-	max := 0
-	min := 0
-	for _, kind := range kinds {
-		if int(kind) > max {
-			max = int(kind)
-		}
-		if int(kind) < min {
-			min = int(kind)
-		}
-	}
-
 	// sort the kinds in increasing order
 	slices.Sort(kinds)
 
 	return func(ctx context.Context, event *nostr.Event) (reject bool, msg string) {
-		// these are cheap and very questionable optimizations, but they exist for a reason:
-		// we would have to ensure that the kind number is within the bounds of a uint16 anyway
-		if event.Kind > max {
-			return true, fmt.Sprintf("event kind not allowed (it should be lower than %d)", max)
-		}
-		if event.Kind < min {
-			return true, fmt.Sprintf("event kind not allowed (it should be higher than %d)", min)
-		}
-
-		// hopefully this map of uint16s is very fast
 		if _, allowed := slices.BinarySearch(kinds, uint16(event.Kind)); allowed {
 			return false, ""
 		}

responding.go

@@ -41,6 +41,9 @@ func (rl *Relay) handleRequest(ctx context.Context, id string, eose *sync.WaitGr
 			ws.WriteJSON(nostr.NoticeEnvelope(err.Error()))
 			eose.Done()
 			continue
+		} else if ch == nil {
+			eose.Done()
+			continue
 		}
 
 		go func(ch chan *nostr.Event) {

utils.go

@@ -22,11 +22,19 @@ func RequestAuth(ctx context.Context) {
 }
 
 func GetConnection(ctx context.Context) *WebSocket {
-	return ctx.Value(wsKey).(*WebSocket)
+	wsi := ctx.Value(wsKey)
+	if wsi != nil {
+		return wsi.(*WebSocket)
+	}
+	return nil
 }
 
 func GetAuthed(ctx context.Context) string {
-	return GetConnection(ctx).AuthedPublicKey
+	conn := GetConnection(ctx)
+	if conn != nil {
+		return conn.AuthedPublicKey
+	}
+	return ""
 }
 
 func GetIP(ctx context.Context) string {