make sure panics don't slip out of websockets

app/websockets/main_handler.go

@@ -12,6 +12,7 @@ import (
 var stepNumber uint64
 
 func handler(rawConn *websocket.Conn) {
+	defer catchPanic()
 	defer rawConn.Close()
 
 	step := atomic.AddUint64(&stepNumber, 1)

app/websockets/scores.go

@@ -75,6 +75,7 @@ type score struct {
 }
 
 func handleNewScore(id string) {
+	defer catchPanic()
 	var s score
 	err := db.Get(&s, `
 SELECT
@@ -131,3 +132,11 @@ func inModes(modes []int, i int) bool {
 	}
 	return false
 }
+
+func catchPanic() {
+	r := recover()
+	if r != nil {
+		fmt.Println(r)
+		// TODO: sentry
+	}
+}