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package maxmind
import (
"encoding/json"
"fmt"
"os"
"strings"
"github.com/Loyalsoldier/geoip/lib"
"github.com/oschwald/geoip2-golang/v2"
"github.com/oschwald/maxminddb-golang/v2"
)
const (
TypeGeoLite2CountryMMDBIn = "maxmindMMDB"
DescGeoLite2CountryMMDBIn = "Convert MaxMind mmdb database to other formats"
)
func init() {
lib.RegisterInputConfigCreator(TypeGeoLite2CountryMMDBIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
return NewGeoLite2CountryMMDBInFromBytes(TypeGeoLite2CountryMMDBIn, DescGeoLite2CountryMMDBIn, action, data)
})
lib.RegisterInputConverter(TypeGeoLite2CountryMMDBIn, &GeoLite2CountryMMDBIn{
Description: DescGeoLite2CountryMMDBIn,
})
}
func NewGeoLite2CountryMMDBIn(iType string, iDesc string, action lib.Action, opts ...lib.InputOption) lib.InputConverter {
g := &GeoLite2CountryMMDBIn{
Type: iType,
Action: action,
Description: iDesc,
}
for _, opt := range opts {
if opt != nil {
opt(g)
}
}
return g
}
type GeoLite2CountryMMDBIn struct {
Type string
Action lib.Action
Description string
URI string
Want map[string]bool
OnlyIPType lib.IPType
}
func (g *GeoLite2CountryMMDBIn) GetType() string {
return g.Type
}
func (g *GeoLite2CountryMMDBIn) GetAction() lib.Action {
return g.Action
}
func (g *GeoLite2CountryMMDBIn) GetDescription() string {
return g.Description
}
func (g *GeoLite2CountryMMDBIn) Input(container lib.Container) (lib.Container, error) {
var content []byte
var err error
switch {
case strings.HasPrefix(strings.ToLower(g.URI), "http://"), strings.HasPrefix(strings.ToLower(g.URI), "https://"):
content, err = lib.GetRemoteURLContent(g.URI)
default:
content, err = os.ReadFile(g.URI)
}
if err != nil {
return nil, err
}
entries := make(map[string]*lib.Entry, 300)
err = g.generateEntries(content, entries)
if err != nil {
return nil, err
}
if len(entries) == 0 {
return nil, fmt.Errorf("❌ [type %s | action %s] no entry is generated", g.Type, g.Action)
}
ignoreIPType := lib.GetIgnoreIPType(g.OnlyIPType)
for _, entry := range entries {
switch g.Action {
case lib.ActionAdd:
if err := container.Add(entry, ignoreIPType); err != nil {
return nil, err
}
case lib.ActionRemove:
if err := container.Remove(entry, lib.CaseRemovePrefix, ignoreIPType); err != nil {
return nil, err
}
default:
return nil, lib.ErrUnknownAction
}
}
return container, nil
}
func (g *GeoLite2CountryMMDBIn) generateEntries(content []byte, entries map[string]*lib.Entry) error {
db, err := maxminddb.OpenBytes(content)
if err != nil {
return err
}
defer db.Close()
for network := range db.Networks() {
var name string
var err error
switch g.Type {
case TypeGeoLite2CountryMMDBIn, TypeDBIPCountryMMDBIn:
var record geoip2.Country
err = network.Decode(&record)
if err != nil {
return err
}
switch {
case strings.TrimSpace(record.Country.ISOCode) != "":
name = strings.ToUpper(strings.TrimSpace(record.Country.ISOCode))
case strings.TrimSpace(record.RegisteredCountry.ISOCode) != "":
name = strings.ToUpper(strings.TrimSpace(record.RegisteredCountry.ISOCode))
case strings.TrimSpace(record.RepresentedCountry.ISOCode) != "":
name = strings.ToUpper(strings.TrimSpace(record.RepresentedCountry.ISOCode))
}
case TypeIPInfoCountryMMDBIn:
var record ipInfoLite
err = network.Decode(&record)
if err != nil {
return err
}
name = strings.ToUpper(strings.TrimSpace(record.CountryCode))
default:
return lib.ErrNotSupportedFormat
}
if name == "" || !network.Found() {
continue
}
if len(g.Want) > 0 && !g.Want[name] {
continue
}
entry, found := entries[name]
if !found {
entry = lib.NewEntry(name)
}
if err := entry.AddPrefix(network.Prefix()); err != nil {
return err
}
entries[name] = entry
}
return nil
}
|
