From 21592ae8a0d38bba1f322016a1411e94ce57f7fd Mon Sep 17 00:00:00 2001
From: yoyo <yourbask@gmail.com>
Date: Wed, 17 Dec 2025 20:09:51 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=20IPv6=20=E5=9C=B0?=
 =?UTF-8?q?=E5=9D=80=E8=A7=A3=E6=9E=90=E4=B8=AD=E7=9A=84=E7=AB=AF=E5=8F=A3?=
 =?UTF-8?q?=E5=A4=84=E7=90=86=E9=80=BB=E8=BE=91?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 将 LastIndex 替换为 Index，以正确找到第一个闭合括号。
- 添加逻辑以在端口部分为空时使用默认端口 80，解决了潜在的连接问题。
---
 internal/continuous/tcping.go | 8 ++++++--
 internal/handler/tcping.go    | 8 ++++++--
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/internal/continuous/tcping.go b/internal/continuous/tcping.go
index e4effd0..0788441 100644
--- a/internal/continuous/tcping.go
+++ b/internal/continuous/tcping.go
@@ -35,14 +35,18 @@ func NewTCPingTask(taskID, target string, interval, maxDuration time.Duration) (
 
 	// 检查是否是IPv6格式（如 [::1]:8080）
 	if strings.HasPrefix(target, "[") {
-		// IPv6格式
-		closeBracket := strings.LastIndex(target, "]")
+		// IPv6格式 - 使用 Index 而不是 LastIndex 来找到第一个闭合括号
+		closeBracket := strings.Index(target, "]")
 		if closeBracket == -1 {
 			return nil, fmt.Errorf("无效的target格式，IPv6地址格式应为 [host]:port")
 		}
 		host = target[1:closeBracket]
 		if closeBracket+1 < len(target) && target[closeBracket+1] == ':' {
 			portStr = target[closeBracket+2:]
+			// 如果端口部分为空，使用默认端口80（修复 Bug 1）
+			if portStr == "" {
+				portStr = "80"
+			}
 		} else {
 			portStr = "80" // 默认端口
 		}
diff --git a/internal/handler/tcping.go b/internal/handler/tcping.go
index 546fac7..57b9a1a 100644
--- a/internal/handler/tcping.go
+++ b/internal/handler/tcping.go
@@ -23,8 +23,8 @@ func handleTCPing(c *gin.Context, url string, params map[string]interface{}) {
 
 	// 检查是否是IPv6格式（如 [::1]:8080）
 	if strings.HasPrefix(url, "[") {
-		// IPv6格式
-		closeBracket := strings.LastIndex(url, "]")
+		// IPv6格式 - 使用 Index 而不是 LastIndex 来找到第一个闭合括号
+		closeBracket := strings.Index(url, "]")
 		if closeBracket == -1 {
 			c.JSON(200, gin.H{
 				"seq":   seq,
@@ -37,6 +37,10 @@ func handleTCPing(c *gin.Context, url string, params map[string]interface{}) {
 		host = url[1:closeBracket]
 		if closeBracket+1 < len(url) && url[closeBracket+1] == ':' {
 			portStr = url[closeBracket+2:]
+			// 如果端口部分为空，使用默认端口80（修复 Bug 1）
+			if portStr == "" {
+				portStr = "80"
+			}
 		} else {
 			portStr = "80" // 默认端口
 		}