Clash.Meta/rules/geoip.go
2018-10-14 21:22:58 +08:00

55 lines
872 B
Go

package rules
import (
"sync"
C "github.com/Dreamacro/clash/constant"
"github.com/oschwald/geoip2-golang"
log "github.com/sirupsen/logrus"
)
var (
mmdb *geoip2.Reader
once sync.Once
)
type GEOIP struct {
country string
adapter string
}
func (g *GEOIP) RuleType() C.RuleType {
return C.GEOIP
}
func (g *GEOIP) IsMatch(metadata *C.Metadata) bool {
if metadata.IP == nil {
return false
}
record, _ := mmdb.Country(*metadata.IP)
return record.Country.IsoCode == g.country
}
func (g *GEOIP) Adapter() string {
return g.adapter
}
func (g *GEOIP) Payload() string {
return g.country
}
func NewGEOIP(country string, adapter string) *GEOIP {
once.Do(func() {
var err error
mmdb, err = geoip2.Open(C.Path.MMDB())
if err != nil {
log.Fatalf("Can't load mmdb: %s", err.Error())
}
})
return &GEOIP{
country: country,
adapter: adapter,
}
}