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package registry
import (
"fmt"
"io/ioutil"
"net/http"
)
type HTTPStatusError struct {
Response *http.Response
// Copied from `Response.Body` to avoid problems with unclosed bodies later.
// Nobody calls `err.Response.Body.Close()`, ever.
Body []byte
}
func (err *HTTPStatusError) Error() string {
return fmt.Sprintf("http: non-successful response (status=%v body=%q)", err.Response.StatusCode, err.Body)
}
var _ error = &HTTPStatusError{}
type ErrorTransport struct {
Transport http.RoundTripper
}
func (t *ErrorTransport) RoundTrip(request *http.Request) (*http.Response, error) {
resp, err := t.Transport.RoundTrip(request)
if err != nil {
return resp, err
}
if resp.StatusCode >= 400 {
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, fmt.Errorf("http: failed to read response body (status=%v, err=%q)", resp.StatusCode, err)
}
return nil, &HTTPStatusError{
Response: resp,
Body: body,
}
}
return resp, err
}
|
