mihomo/rule/common/geoip.go
2022-05-17 16:47:21 +08:00

102 lines
2.1 KiB
Go

package common
import (
"fmt"
"github.com/Dreamacro/clash/component/geodata"
"github.com/Dreamacro/clash/component/geodata/router"
"strings"
"github.com/Dreamacro/clash/component/mmdb"
"github.com/Dreamacro/clash/component/resolver"
C "github.com/Dreamacro/clash/constant"
"github.com/Dreamacro/clash/log"
)
type GEOIP struct {
*Base
country string
adapter string
noResolveIP bool
geoIPMatcher *router.GeoIPMatcher
recodeSize int
}
func (g *GEOIP) RuleType() C.RuleType {
return C.GEOIP
}
func (g *GEOIP) Match(metadata *C.Metadata) bool {
ip := metadata.DstIP
if !ip.IsValid() {
return false
}
if strings.EqualFold(g.country, "LAN") {
return ip.IsPrivate() ||
ip.IsUnspecified() ||
ip.IsLoopback() ||
ip.IsMulticast() ||
ip.IsLinkLocalUnicast() ||
resolver.IsFakeBroadcastIP(ip)
}
if !C.GeodataMode {
record, _ := mmdb.Instance().Country(ip.AsSlice())
return strings.EqualFold(record.Country.IsoCode, g.country)
}
return g.geoIPMatcher.Match(ip.AsSlice())
}
func (g *GEOIP) Adapter() string {
return g.adapter
}
func (g *GEOIP) Payload() string {
return g.country
}
func (g *GEOIP) ShouldResolveIP() bool {
return !g.noResolveIP
}
func (g *GEOIP) GetCountry() string {
return g.country
}
func (g *GEOIP) GetIPMatcher() *router.GeoIPMatcher {
return g.geoIPMatcher
}
func (g *GEOIP) GetRecodeSize() int {
return g.recodeSize
}
func NewGEOIP(country string, adapter string, noResolveIP bool) (*GEOIP, error) {
if !C.GeodataMode {
geoip := &GEOIP{
Base: &Base{},
country: country,
adapter: adapter,
noResolveIP: noResolveIP,
}
return geoip, nil
}
geoIPMatcher, size, err := geodata.LoadGeoIPMatcher(country)
if err != nil {
return nil, fmt.Errorf("[GeoIP] %s", err.Error())
}
log.Infoln("Start initial GeoIP rule %s => %s, records: %d", country, adapter, size)
geoip := &GEOIP{
Base: &Base{},
country: country,
adapter: adapter,
noResolveIP: noResolveIP,
geoIPMatcher: geoIPMatcher,
recodeSize: size,
}
return geoip, nil
}
var _ C.Rule = (*GEOIP)(nil)