Method getAuthToken

cf/api/authentication/authentication.go:220–270

(data url.Values)

}

func (uaa UAARepository) getAuthToken(data url.Values) error {
	var accessToken string

	type uaaErrorResponse struct {
		Code        string `json:"error"`
		Description string `json:"error_description"`
	}

	type AuthenticationResponse struct {
		AccessToken  string           `json:"access_token"`
		TokenType    string           `json:"token_type"`
		RefreshToken string           `json:"refresh_token"`
		Error        uaaErrorResponse `json:"error"`
	}

	path := fmt.Sprintf("%s/oauth/token", uaa.config.AuthenticationEndpoint())

	if uaa.config.UAAGrantType() != "client_credentials" {
		accessToken = "Basic " + base64.StdEncoding.EncodeToString([]byte(uaa.config.UAAOAuthClient()+":"+uaa.config.UAAOAuthClientSecret()))
	}

	request, err := uaa.gateway.NewRequest("POST", path, accessToken, strings.NewReader(data.Encode()))

	if err != nil {
		return fmt.Errorf("%s: %s", T("Failed to start oauth request"), err.Error())
	}
	request.HTTPReq.Header.Set("Content-Type", "application/x-www-form-urlencoded")

	response := new(AuthenticationResponse)
	_, err = uaa.gateway.PerformRequestForJSONResponse(request, &response)

	switch err.(type) {
	case nil:
	case errors.HTTPError:
		return err
	case *errors.InvalidTokenError:
		return errors.New(T("Authentication has expired.  Please log back in to re-authenticate.\n\nTIP: Use `cf login -a <endpoint> -u <user> -o <org> -s <space>` to log back in and re-authenticate."))
	default:
		return fmt.Errorf("%s: %s", T("auth request failed"), err.Error())
	}

	// TODO: get the actual status code
	if response.Error.Code != "" {
		return errors.NewHTTPError(0, response.Error.Code, response.Error.Description)
	}

	uaa.config.SetAccessToken(fmt.Sprintf("%s %s", response.TokenType, response.AccessToken))
	uaa.config.SetRefreshToken(response.RefreshToken)

	return nil
}