mirror of
https://github.com/MetaCubeX/mihomo.git
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65 lines
1 KiB
Go
65 lines
1 KiB
Go
package mmdb
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import (
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"github.com/oschwald/geoip2-golang"
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"io"
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"net/http"
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"os"
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"sync"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/clash/log"
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)
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var (
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mmdb *geoip2.Reader
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once sync.Once
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)
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func LoadFromBytes(buffer []byte) {
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once.Do(func() {
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var err error
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mmdb, err = geoip2.FromBytes(buffer)
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if err != nil {
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log.Fatalln("Can't load mmdb: %s", err.Error())
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}
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})
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}
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func Verify() bool {
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instance, err := geoip2.Open(C.Path.MMDB())
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if err == nil {
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instance.Close()
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}
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return err == nil
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}
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func Instance() *geoip2.Reader {
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once.Do(func() {
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var err error
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mmdb, err = geoip2.Open(C.Path.MMDB())
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if err != nil {
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log.Fatalln("Can't load mmdb: %s", err.Error())
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}
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})
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return mmdb
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}
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func DownloadMMDB(path string) (err error) {
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resp, err := http.Get(C.MmdbUrl)
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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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