From 32cdfc3db442009676b67f2df0923241823ba0e7 Mon Sep 17 00:00:00 2001
From: atavism <paul@getlantern.org>
Date: Mon, 12 Aug 2024 08:40:31 -0700
Subject: [PATCH] lock masquerade during json.Marshal

---
 masquerade.go | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/masquerade.go b/masquerade.go
index 0abade8..8bfd6bf 100644
--- a/masquerade.go
+++ b/masquerade.go
@@ -1,6 +1,7 @@
 package fronted
 
 import (
+	"encoding/json"
 	"fmt"
 	"hash/crc32"
 	"net"
@@ -48,6 +49,18 @@ type masquerade struct {
 	mx         sync.RWMutex
 }
 
+func (m *masquerade) MarshalJSON() ([]byte, error) {
+	m.mx.RLock()
+	defer m.mx.RUnlock()
+	// Type alias for masquerade
+	type Alias masquerade
+	return json.Marshal(&struct {
+		*Alias
+	}{
+		Alias: (*Alias)(m),
+	})
+}
+
 func (m *masquerade) lastSucceeded() time.Time {
 	m.mx.RLock()
 	defer m.mx.RUnlock()