From c704f53e348b8a30711a7c213e1331d433a288fb Mon Sep 17 00:00:00 2001
From: parhelia512 <0011d3@gmail.com>
Date: Fri, 5 Dec 2025 13:45:00 +0800
Subject: [PATCH] fix: auto-fill fingerprint for reality

---
 src/configs/common/TLS.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/configs/common/TLS.cpp b/src/configs/common/TLS.cpp
index cb322d7..3bc572c 100644
--- a/src/configs/common/TLS.cpp
+++ b/src/configs/common/TLS.cpp
@@ -335,7 +335,14 @@ namespace Configs {
         if (!fragment_fallback_delay.isEmpty()) object["fragment_fallback_delay"] = fragment_fallback_delay;
         if (record_fragment) object["record_fragment"] = record_fragment;
         if (auto obj = ech->Build().object;!obj.isEmpty()) object["ech"] = obj;
-        if (auto obj = utls->Build().object;!obj.isEmpty()) object["utls"] = obj;
+        if (auto obj = utls->Build().object;!obj.isEmpty()) {
+            object["utls"] = obj;
+        } else if (reality->enabled) {
+            object["utls"] = QJsonObject{
+                    {"enabled", true},
+                    {"fingerprint", "random"},
+                };
+        }
         if (auto obj = reality->Build().object;!obj.isEmpty()) object["reality"] = obj;
         return {object, ""};
     }