108 lines
2 KiB
Go
108 lines
2 KiB
Go
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package constant
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import (
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"archive/tar"
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"compress/gzip"
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"io"
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"net/http"
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"os"
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"os/user"
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"path"
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"strings"
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log "github.com/sirupsen/logrus"
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"gopkg.in/ini.v1"
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)
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const (
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Name = "clash"
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DefalutHTTPPort = "7890"
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DefalutSOCKSPort = "7891"
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)
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var (
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HomeDir string
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ConfigPath string
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MMDBPath string
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)
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func init() {
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currentUser, err := user.Current()
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if err != nil {
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log.Fatalf("Can't get current user: %s", err.Error())
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}
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HomeDir = currentUser.HomeDir
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dirPath := path.Join(HomeDir, ".config", Name)
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if _, err := os.Stat(dirPath); os.IsNotExist(err) {
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if err := os.MkdirAll(dirPath, 0777); err != nil {
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log.Fatalf("Can't create config directory %s: %s", dirPath, err.Error())
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}
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}
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ConfigPath = path.Join(dirPath, "config.ini")
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if _, err := os.Stat(ConfigPath); os.IsNotExist(err) {
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log.Info("Can't find config, create a empty file")
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os.OpenFile(ConfigPath, os.O_CREATE|os.O_WRONLY, 0644)
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}
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MMDBPath = path.Join(dirPath, "Country.mmdb")
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if _, err := os.Stat(MMDBPath); os.IsNotExist(err) {
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log.Info("Can't find MMDB, start download")
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err := downloadMMDB(MMDBPath)
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if err != nil {
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log.Fatalf("Can't download MMDB: %s", err.Error())
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}
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}
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}
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func downloadMMDB(path string) (err error) {
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resp, err := http.Get("http://geolite.maxmind.com/download/geoip/database/GeoLite2-Country.tar.gz")
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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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gr, err := gzip.NewReader(resp.Body)
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if err != nil {
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return
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}
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defer gr.Close()
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tr := tar.NewReader(gr)
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for {
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h, err := tr.Next()
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if err == io.EOF {
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break
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} else if err != nil {
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return err
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}
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if !strings.HasSuffix(h.Name, "GeoLite2-Country.mmdb") {
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continue
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}
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f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0644)
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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, tr)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func GetConfig() (*ini.File, error) {
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if _, err := os.Stat(ConfigPath); os.IsNotExist(err) {
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return nil, err
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}
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return ini.LoadSources(
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ini.LoadOptions{AllowBooleanKeys: true},
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ConfigPath,
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)
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}
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