From 5d2b5b7414e4c8e770e25918c44290a85c88a384 Mon Sep 17 00:00:00 2001
From: chunzhi <chunzhi233233@gmail.com>
Date: Mon, 22 Jan 2024 20:54:27 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=20choose-cn.sh?=
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---
 choose-cn.sh | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/choose-cn.sh b/choose-cn.sh
index 0319150..21d8c08 100644
--- a/choose-cn.sh
+++ b/choose-cn.sh
@@ -19,9 +19,17 @@ do
     
         # 如果延迟时间小于 150ms
         if (( $(echo "$ping_time < 150" | bc -l) )); then
-            echo "Ping to $ip successful with a latency of $ping_time ms"
-            # 将小于 150ms 的 IP 写入 ip_use.txt
-            echo "$ip" >> ip_use.txt
+            # 检查 IP 地址与 Cloudflare 的连通性
+            status_code=$(curl --resolve cloudflare.com:443:$ip --insecure https://cloudflare.com/cdn-cgi/trace -o /dev/null -w '%{http_code}' -s)
+            
+            # 如果 HTTP 状态码为 200
+            if [ $status_code -eq 200 ]; then
+                echo "Ping to $ip successful with a latency of $ping_time ms"
+                # 将小于 150ms 的 IP 写入 ip_use.txt
+                echo "$ip" >> ip_use.txt
+            else
+                echo "Ping to $ip discarded due to connectivity issues with Cloudflare"
+            fi
         else
             echo "Ping to $ip discarded due to high latency of $ping_time ms"
         fi