Function httpResponseToError

docker/errors.go:33–48

httpResponseToError translates the https.Response into an error, possibly prefixing it with the supplied context. It returns nil if the response is not considered an error. NOTE: Almost all callers in this package should use registryHTTPResponseToError instead.

(res *http.Response, context string)

// nil if the response is not considered an error.
// NOTE: Almost all callers in this package should use registryHTTPResponseToError instead.
func httpResponseToError(res *http.Response, context string) error {
	switch res.StatusCode {
	case http.StatusOK:
		return nil
	case http.StatusTooManyRequests:
		return ErrTooManyRequests
	case http.StatusUnauthorized:
		err := registryHTTPResponseToError(res)
		return ErrUnauthorizedForCredentials{Err: err}
	default:
		if context == "" {
			return newUnexpectedHTTPStatusError(res)
		}
		return fmt.Errorf("%s: %w", context, newUnexpectedHTTPStatusError(res))
	}
}

// registryHTTPResponseToError creates a Go error from an HTTP error response of a docker/distribution
// registry.