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ip2download.go
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ip2download.go
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package ip2location
import (
"os"
"io"
"net/http"
"fmt"
"strings"
"io/ioutil"
)
func DownloadDBToWriter(token, dbcode string, to io.Writer) error {
resp, err := http.Get(fmt.Sprintf("https://www.ip2location.com/download/?token=%s&file=%s", token, dbcode))
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("invalid response status code %v", resp.StatusCode)
}
if strings.HasPrefix(resp.Header.Get("Content-Type"), "text/html") || resp.ContentLength < 100 {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
return fmt.Errorf("server response error '%v'", string(body))
}
_, err = io.Copy(to, resp.Body)
return err
}
func DownloadDBToFile(token, dbcode string, to string) error {
f, err := os.Create(to)
if err != nil {
return err
}
defer f.Close()
return DownloadDBToWriter(token, dbcode, f)
}
func DownloadDBToTmp(token, dbcode string) (*os.File, error) {
f, err := ioutil.TempFile("", "ip2location.zip")
if err != nil {
return nil, err
}
return f, DownloadDBToWriter(token, dbcode, f)
}