82 lines
2 KiB
Go
82 lines
2 KiB
Go
package config
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import (
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"fmt"
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"github.com/Dreamacro/clash/component/geodata"
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_ "github.com/Dreamacro/clash/component/geodata/standard"
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C "github.com/Dreamacro/clash/constant"
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"github.com/oschwald/geoip2-golang"
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"os"
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"runtime"
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)
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func UpdateGeoDatabases() error {
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var (
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tmpMMDB = C.Path.Resolve("temp_country.mmdb")
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tmpGepIP = C.Path.Resolve("temp_geoip.dat")
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tmpGeoSite = C.Path.Resolve("temp_geosite.dat")
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)
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if C.GeodataMode {
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if err := downloadGeoIP(tmpGepIP); err != nil {
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return fmt.Errorf("can't download GeoIP database file: %w", err)
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}
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if err := verifyGeoSite("temp_geoip.dat"); err != nil {
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_ = os.Remove(tmpGepIP)
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return fmt.Errorf("invalid GeoIP database file: %s", err)
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}
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if err := os.Rename(tmpGepIP, C.Path.GeoIP()); err != nil {
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return fmt.Errorf("can't rename MMDB database file: %w", err)
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}
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} else {
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if err := downloadMMDB(tmpMMDB); err != nil {
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return fmt.Errorf("can't download MMDB database file: %w", err)
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}
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if err := verifyMMDB("temp_country.mmdb"); err != nil {
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_ = os.Remove(tmpMMDB)
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return fmt.Errorf("invalid MMDB database file: %s", err)
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}
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if err := os.Rename(tmpMMDB, C.Path.MMDB()); err != nil {
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return fmt.Errorf("can't rename MMDB database file: %w", err)
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}
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}
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if err := downloadGeoSite(tmpGeoSite); err != nil {
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return fmt.Errorf("can't download GeoSite database file: %w", err)
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}
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if err := verifyGeoSite("temp_geosite.dat"); err != nil {
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_ = os.Remove(tmpGeoSite)
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return fmt.Errorf("invalid GeoSite database file: %s", err)
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}
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if err := os.Rename(tmpGeoSite, C.Path.GeoSite()); err != nil {
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return fmt.Errorf("can't rename GeoSite database file: %w", err)
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}
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runtime.GC()
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return nil
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}
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func verifyMMDB(path string) error {
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instance, err := geoip2.Open(path)
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if err == nil {
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_ = instance.Close()
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}
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return err
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}
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func verifyGeoSite(path string) error {
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geoLoader, err := geodata.GetGeoDataLoader("standard")
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if err != nil {
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return err
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}
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_, err = geoLoader.LoadSite(path, "cn")
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return err
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}
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