From 1446138557a2e1ec3e2fb3f993c82c6dba3fe3da Mon Sep 17 00:00:00 2001
From: svefnz <svefnz@gmail.com>
Date: Wed, 8 Jul 2026 01:25:56 +0800
Subject: [PATCH] feat: force using Caddy domain as SNI when REALITY fallback
 is enabled

---
 src/core.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/core.sh b/src/core.sh
index 82aba9f..84f3bad 100644
--- a/src/core.sh
+++ b/src/core.sh
@@ -1297,6 +1297,13 @@ get() {
             ;;
         *reality*)
             net=reality
+            [[ $is_reality_fallback ]] && {
+                # If fallback is enabled, we MUST use their Caddy domain
+                [[ ! $is_servername || $is_servername == $is_random_servername ]] && {
+                    msg "\n由于启用了 Caddy 回落，REALITY 必须借用你自己 Caddy 网站的域名和证书才能完成握手。"
+                    ask string is_servername "请输入你在 Caddy 中配置的网站域名:"
+                }
+            }
             [[ ! $is_servername ]] && is_servername=$is_random_servername
             [[ ! $is_private_key ]] && get_pbk
             local handshake_server=$is_servername