Method register

oauth.go:427–448

(ctx context.Context, state string)

}

func (r *callbackProxyClient) register(ctx context.Context, state string) error {
	form := url.Values{}
	form.Add("state", state)
	form.Add("location", r.callbackLocation)
	req, err := http.NewRequestWithContext(ctx, "POST", r.server, strings.NewReader(form.Encode()))
	if err != nil {
		return err
	}
	req.Header.Set("User-Agent", ServerUserAgent(""))
	req.Header.Set("Accept", "application/json")
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")

	resp, err := r.httpClient.Do(req)
	if err != nil {
		return err
	}
	if resp.StatusCode != http.StatusCreated {
		return fmt.Errorf("unable register state location: %d", resp.StatusCode)
	}

	return nil
}

func limitedJsonUnmarshal(body io.ReadCloser, n int, thing interface{}) error {
	lr := io.LimitReader(body, int64(n+1))