From 678e7f2c2a0c6ad97f6df11608ccc6cd11fe2fe0 Mon Sep 17 00:00:00 2001
From: GoEdgeLab <goedgecloud@gmail.com>
Date: Sun, 1 Aug 2021 09:20:07 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8DIPv6=E8=AE=BF=E9=97=AE?=
 =?UTF-8?q?=E5=8F=AF=E8=83=BD=E5=AF=BC=E8=87=B4=E8=BF=9B=E7=A8=8B=E5=BC=82?=
 =?UTF-8?q?=E5=B8=B8=E9=80=80=E5=87=BA=E7=9A=84Bug?=
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---
 internal/iplibrary/library_interface.go     | 7 ++++---
 internal/stats/http_request_stat_manager.go | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/internal/iplibrary/library_interface.go b/internal/iplibrary/library_interface.go
index df0ef7c..5616397 100644
--- a/internal/iplibrary/library_interface.go
+++ b/internal/iplibrary/library_interface.go
@@ -1,12 +1,13 @@
 package iplibrary
 
 type LibraryInterface interface {
-	// 加载数据库文件
+	// Load 加载数据库文件
 	Load(dbPath string) error
 
-	// 查询IP
+	// Lookup 查询IP
+	// 返回结果有可能为空
 	Lookup(ip string) (*Result, error)
 
-	// 关闭数据库文件
+	// Close 关闭数据库文件
 	Close()
 }
diff --git a/internal/stats/http_request_stat_manager.go b/internal/stats/http_request_stat_manager.go
index c30b61e..2e808f3 100644
--- a/internal/stats/http_request_stat_manager.go
+++ b/internal/stats/http_request_stat_manager.go
@@ -165,7 +165,7 @@ Loop:
 			ip := ipString[atIndex+1:]
 			if iplibrary.SharedLibrary != nil {
 				result, err := iplibrary.SharedLibrary.Lookup(ip)
-				if err == nil {
+				if err == nil && result != nil {
 					this.cityMap[serverId+"@"+result.Country+"@"+result.Province+"@"+result.City]  ++
 
 					if len(result.ISP) > 0 {