90 lines
2.1 KiB
Go
90 lines
2.1 KiB
Go
package config
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import (
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"context"
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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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"runtime"
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"time"
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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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clashHttp "github.com/Dreamacro/clash/component/http"
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C "github.com/Dreamacro/clash/constant"
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"github.com/oschwald/maxminddb-golang"
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)
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func UpdateGeoDatabases() error {
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defer runtime.GC()
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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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if C.GeodataMode {
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data, err := downloadForBytes(C.GeoIpUrl)
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if 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 = geoLoader.LoadIPByBytes(data, "cn"); err != nil {
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return fmt.Errorf("invalid GeoIP database file: %s", err)
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}
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if saveFile(data, C.Path.GeoIP()) != nil {
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return fmt.Errorf("can't save GeoIP database file: %w", err)
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}
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} else {
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data, err := downloadForBytes(C.MmdbUrl)
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if 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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instance, err := maxminddb.FromBytes(data)
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if err != nil {
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return fmt.Errorf("invalid MMDB database file: %s", err)
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}
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_ = instance.Close()
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if saveFile(data, C.Path.MMDB()) != nil {
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return fmt.Errorf("can't save MMDB database file: %w", err)
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}
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}
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data, err := downloadForBytes(C.GeoSiteUrl)
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if 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 = geoLoader.LoadSiteByBytes(data, "cn"); err != nil {
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return fmt.Errorf("invalid GeoSite database file: %s", err)
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}
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if saveFile(data, C.Path.GeoSite()) != nil {
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return fmt.Errorf("can't save GeoSite database file: %w", err)
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}
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geodata.ClearCache()
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return nil
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}
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func downloadForBytes(url string) ([]byte, error) {
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ctx, cancel := context.WithTimeout(context.Background(), time.Second*90)
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defer cancel()
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resp, err := clashHttp.HttpRequest(ctx, url, http.MethodGet, http.Header{"User-Agent": {"clash"}}, nil)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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return io.ReadAll(resp.Body)
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}
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func saveFile(bytes []byte, path string) error {
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return os.WriteFile(path, bytes, 0o644)
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}
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