78 lines
2.3 KiB
Go
78 lines
2.3 KiB
Go
package geoip
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import (
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"log/slog"
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"net"
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"yobbly-gateway-go/internal/logger"
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"github.com/oschwald/geoip2-golang"
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)
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// GeoIPService предоставляет методы для поиска GeoIP.
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type GeoIPService struct {
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reader *geoip2.Reader
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blockedCountries map[string]struct{}
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}
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// NewGeoIPService создает новый GeoIPService.
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func NewGeoIPService(dbPath string, blockedCountries []string) (*GeoIPService, error) {
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op := "geoip.NewGeoIPService"
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log := logger.NewLoggerWithOp(op)
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reader, err := geoip2.Open(dbPath)
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if err != nil {
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log.Error("failed to open GeoIP database", slog.String("db_path", dbPath), slog.Any("error", err))
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return nil, err
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}
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blockedMap := make(map[string]struct{})
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for _, country := range blockedCountries {
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blockedMap[country] = struct{}{}
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}
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log.Info("GeoIP service initialized", slog.String("db_path", dbPath), slog.Any("blocked_countries", blockedCountries))
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return &GeoIPService{
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reader: reader,
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blockedCountries: blockedMap,
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},
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nil
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}
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// IsCountryBlocked проверяет, принадлежит ли данный IP-адрес заблокированной стране.
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func (s *GeoIPService) IsCountryBlocked(ipStr string) (bool, string) {
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op := "geoip.IsCountryBlocked"
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log := logger.NewLoggerWithOp(op)
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ip := net.ParseIP(ipStr)
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if ip == nil {
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log.Warn("invalid IP address for GeoIP lookup", slog.String("ip", ipStr))
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return false, ""
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}
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record, err := s.reader.Country(ip)
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if err != nil {
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// Логируем ошибку, но не блокируем, аналогично поведению Python
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log.Error("GeoIP lookup failed", slog.String("ip", ipStr), slog.Any("error", err))
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return false, ""
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}
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countryCode := record.Country.IsoCode
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log.Debug("GeoIP lookup result", slog.String("ip", ipStr), slog.String("country_code", countryCode))
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if _, ok := s.blockedCountries[countryCode]; ok {
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log.Info("access denied for blocked country", slog.String("ip", ipStr), slog.String("country_code", countryCode))
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return true, countryCode
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}
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return false, countryCode
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}
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// Close закрывает ридер базы данных GeoIP.
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func (s *GeoIPService) Close() error {
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op := "geoip.Close"
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log := logger.NewLoggerWithOp(op)
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log.Info("closing GeoIP service")
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return s.reader.Close()
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}
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