From 98641d49b85dd37019536811f3e3c6d22d8d33c3 Mon Sep 17 00:00:00 2001
From: ZacharyZcR <zacharyzcr1984@gmail.com>
Date: Wed, 21 Jan 2026 16:34:07 +0800
Subject: [PATCH] =?UTF-8?q?fix(parsers):=20=E4=BF=AE=E5=A4=8D=E5=B8=A6?=
 =?UTF-8?q?=E6=A8=AA=E6=9D=A0=E5=9F=9F=E5=90=8D=E8=A2=AB=E8=AF=AF=E8=AF=86?=
 =?UTF-8?q?=E5=88=AB=E4=B8=BAIP=E8=8C=83=E5=9B=B4=E7=9A=84=E9=97=AE?=
 =?UTF-8?q?=E9=A2=98?=
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如 111-555.sss.com 这类域名因包含 - 被错误解析为 IP 范围，
添加 looksLikeIPRange() 检查，只有 - 前是有效 IP 才走范围解析
---
 common/parsers/parse_test.go | 10 ++++++++++
 common/parsers/parsers.go    | 15 ++++++++++++++-
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/common/parsers/parse_test.go b/common/parsers/parse_test.go
index 4a44d7b..7bcb66c 100644
--- a/common/parsers/parse_test.go
+++ b/common/parsers/parse_test.go
@@ -444,6 +444,16 @@ func TestParseIP_SingleIP(t *testing.T) {
 			"example.com",
 			[]string{"example.com"},
 		},
+		{
+			"带横杠的域名",
+			"111-555.sss.com",
+			[]string{"111-555.sss.com"},
+		},
+		{
+			"多段横杠域名",
+			"my-test-server.example.com",
+			[]string{"my-test-server.example.com"},
+		},
 	}
 
 	for _, tt := range tests {
diff --git a/common/parsers/parsers.go b/common/parsers/parsers.go
index 537144b..eecb1cf 100644
--- a/common/parsers/parsers.go
+++ b/common/parsers/parsers.go
@@ -112,7 +112,7 @@ func parseHostString(host string) ([]string, error) {
 				return nil, fmt.Errorf("CIDR解析失败 %s: %w", h, err)
 			}
 			hosts = append(hosts, cidrHosts...)
-		case strings.Contains(h, "-") && !strings.Contains(h, ":"):
+		case strings.Contains(h, "-") && !strings.Contains(h, ":") && looksLikeIPRange(h):
 			rangeHosts, err := parseIPRangeString(h, SimpleMaxHosts)
 			if err != nil {
 				return nil, fmt.Errorf("IP范围解析失败 %s: %w", h, err)
@@ -316,6 +316,19 @@ func parseIPCIDR(cidr string, maxTargets int) ([]string, error) {
 	return ips, nil
 }
 
+// looksLikeIPRange 检查字符串是否像IP范围格式
+// 如 192.168.1.1-100 或 192.168.1.1-192.168.1.100
+// 而不是像 111-555.sss.com 这种域名
+func looksLikeIPRange(s string) bool {
+	idx := strings.Index(s, "-")
+	if idx == -1 {
+		return false
+	}
+	// 检查 - 前面的部分是否是有效IP
+	startPart := s[:idx]
+	return net.ParseIP(startPart) != nil
+}
+
 // parseIPRangeString 解析IP范围字符串
 func parseIPRangeString(rangeStr string, maxTargets int) ([]string, error) {
 	parts := strings.Split(rangeStr, "-")