Initial commit (code only without large binaries)

EdgeCommon/pkg/iplibrary/ip_item.go

@@ -0,0 +1,61 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package iplibrary
+
+import (
+	"github.com/iwind/TeaGo/types"
+)
+
+type ipv4ItemV1 struct {
+	IPFrom uint32
+	IPTo   uint32
+
+	Region *ipRegion
+}
+
+type ipv6ItemV1 struct {
+	IPFrom uint64
+	IPTo   uint64
+
+	Region *ipRegion
+}
+
+type ipv4ItemV2 struct {
+	IPFrom [4]byte
+	IPTo   [4]byte
+
+	Region *ipRegion
+}
+
+type ipv6ItemV2 struct {
+	IPFrom [16]byte
+	IPTo   [16]byte
+
+	Region *ipRegion
+}
+
+type ipRegion struct {
+	CountryId  uint16
+	ProvinceId uint16
+	CityId     uint32
+	TownId     uint32
+	ProviderId uint16
+}
+
+func HashRegion(countryId uint16, provinceId uint16, cityId uint32, townId uint32, providerId uint16) string {
+	var providerHash = ""
+	if providerId > 0 {
+		providerHash = "_" + types.String(providerId)
+	}
+
+	if townId > 0 {
+		return "t" + types.String(townId) + providerHash
+	}
+	if cityId > 0 {
+		return "c" + types.String(cityId) + providerHash
+	}
+	if provinceId > 0 {
+		return "p" + types.String(provinceId) + providerHash
+	}
+	return "a" + types.String(countryId) + providerHash
+}