From 697156f6f6fee139ed16c6585c73addd1b49d961 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=A3=8E=E6=89=87=E6=BB=91=E7=BF=94=E7=BF=BC?=
 <Fangliding.fshxy@outlook.com>
Date: Sun, 29 Sep 2024 03:10:42 +0800
Subject: [PATCH] SplitHTTP Config: Add capability to parse int in string
 format (#3855)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

“100” → 100
“-1” → -1
“” → 0
---
 infra/conf/common.go | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/infra/conf/common.go b/infra/conf/common.go
index 9d31bc0a..24664859 100644
--- a/infra/conf/common.go
+++ b/infra/conf/common.go
@@ -252,10 +252,23 @@ type Int32Range struct {
 }
 
 func (v *Int32Range) UnmarshalJSON(data []byte) error {
-	var stringrange string
+	var str string
 	var rawint int32
-	if err := json.Unmarshal(data, &stringrange); err == nil {
-		pair := strings.SplitN(stringrange, "-", 2)
+	if err := json.Unmarshal(data, &str); err == nil {
+		// for number in string format like "114" or "-1"
+		if value, err := strconv.Atoi(str); err == nil {
+			v.From = int32(value)
+			v.To = int32(value)
+			return nil
+		}
+		// for empty "", we treat it as 0
+		if str == "" {
+			v.From = 0
+			v.To = 0
+			return nil
+		}
+		// for range value, like "114-514"
+		pair := strings.SplitN(str, "-", 2)
 		if len(pair) == 2 {
 			from, err := strconv.Atoi(pair[0])
 			to, err2 := strconv.Atoi(pair[1])