124 lines
2.7 KiB
Go
124 lines
2.7 KiB
Go
package common
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import (
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"fmt"
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"io"
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"net/http"
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"os"
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"github.com/Dreamacro/clash/component/geodata"
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"github.com/Dreamacro/clash/component/geodata/router"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/clash/log"
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_ "github.com/Dreamacro/clash/component/geodata/memconservative"
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_ "github.com/Dreamacro/clash/component/geodata/standard"
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)
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type GEOSITE struct {
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*Base
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country string
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adapter string
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matcher *router.DomainMatcher
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recodeSize int
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}
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func (gs *GEOSITE) RuleType() C.RuleType {
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return C.GEOSITE
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}
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func (gs *GEOSITE) Match(metadata *C.Metadata) bool {
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if metadata.AddrType != C.AtypDomainName {
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return false
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}
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domain := metadata.Host
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return gs.matcher.ApplyDomain(domain)
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}
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func (gs *GEOSITE) Adapter() string {
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return gs.adapter
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}
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func (gs *GEOSITE) Payload() string {
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return gs.country
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}
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func (gs *GEOSITE) GetDomainMatcher() *router.DomainMatcher {
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return gs.matcher
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}
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func (gs *GEOSITE) GetRecodeSize() int {
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return gs.recodeSize
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}
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func NewGEOSITE(country string, adapter string) (*GEOSITE, error) {
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if !initFlag {
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if err := initGeoSite(); err != nil {
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log.Errorln("can't initial GeoSite: %s", err)
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return nil, err
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}
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initFlag = true
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}
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matcher, size, err := geodata.LoadGeoSiteMatcher(country)
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if err != nil {
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return nil, fmt.Errorf("load GeoSite data error, %s", err.Error())
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}
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log.Infoln("Start initial GeoSite rule %s => %s, records: %d", country, adapter, size)
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geoSite := &GEOSITE{
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Base: &Base{},
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country: country,
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adapter: adapter,
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matcher: matcher,
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recodeSize: size,
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}
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return geoSite, nil
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}
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var _ C.Rule = (*GEOSITE)(nil)
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func downloadGeoSite(path string) (err error) {
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resp, err := http.Get(C.GeoSiteUrl)
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if err != nil {
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return
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}
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defer resp.Body.Close()
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f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0o644)
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if err != nil {
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return err
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}
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defer f.Close()
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_, err = io.Copy(f, resp.Body)
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return err
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}
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func initGeoSite() error {
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if _, err := os.Stat(C.Path.GeoSite()); os.IsNotExist(err) {
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log.Infoln("Can't find GeoSite.dat, start download")
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if err := downloadGeoSite(C.Path.GeoSite()); err != nil {
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return fmt.Errorf("can't download GeoSite.dat: %s", err.Error())
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}
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log.Infoln("Download GeoSite.dat finish")
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}
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if !initFlag {
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err := geodata.Verify(C.GeositeName)
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if err != nil {
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log.Warnln("GeoSite.dat invalid, remove and download: %s", err)
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if err := os.Remove(C.Path.GeoSite()); err != nil {
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return fmt.Errorf("can't remove invalid GeoSite.dat: %s", err.Error())
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}
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if err := downloadGeoSite(C.Path.GeoSite()); err != nil {
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return fmt.Errorf("can't download GeoSite.dat: %s", err.Error())
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}
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} else {
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initFlag = true
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}
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}
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return nil
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}
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