fix: check local ip for 123pan

drivers/123/driver.go

@@ -140,7 +140,7 @@ func (driver Pan123) Link(args base.Args, account *model.Account) (*base.Link, e
 	}
 	var resp Pan123DownResp
 	var headers map[string]string
-	if args.IP != "" && args.IP != "::1" {
+	if !utils.IsLocalIPAddr(args.IP) {
 		headers = map[string]string{
 			//"X-Real-IP":       "1.1.1.1",
 			"X-Forwarded-For": args.IP,

utils/check.go

@@ -0,0 +1,28 @@
+package utils
+
+import (
+	"net"
+)
+
+func IsLocalIPAddr(ip string) bool {
+	return IsLocalIP(net.ParseIP(ip))
+}
+
+func IsLocalIP(ip net.IP) bool {
+	if ip == nil {
+		return false
+	}
+	if ip.IsLoopback() {
+		return true
+	}
+
+	ip4 := ip.To4()
+	if ip4 == nil {
+		return false
+	}
+
+	return ip4[0] == 10 || // 10.0.0.0/8
+		(ip4[0] == 172 && ip4[1] >= 16 && ip4[1] <= 31) || // 172.16.0.0/12
+		(ip4[0] == 169 && ip4[1] == 254) || // 169.254.0.0/16
+		(ip4[0] == 192 && ip4[1] == 168) // 192.168.0.0/16
+}