Method authenticate

cf/commands/login.go:214–288

(c flags.FlagContext)

}

func (cmd Login) authenticate(c flags.FlagContext) error {
	if cmd.config.UAAGrantType() == "client_credentials" {
		return errors.New(T("Service account currently logged in. Use 'cf logout' to log out service account and try again."))
	}

	usernameFlagValue := c.String("u")
	passwordFlagValue := c.String("p")

	prompts, err := cmd.authenticator.GetLoginPromptsAndSaveUAAServerURL()
	if err != nil {
		return err
	}
	passwordKeys := []string{}
	credentials := make(map[string]string)

	if value, ok := prompts["username"]; ok {
		if prompts["username"].Type == coreconfig.AuthPromptTypeText && usernameFlagValue != "" {
			credentials["username"] = usernameFlagValue
		} else {
			credentials["username"] = cmd.ui.Ask(T(value.DisplayName))
		}
	}

	for key, prompt := range prompts {
		if prompt.Type == coreconfig.AuthPromptTypePassword {
			if key == "passcode" || key == "password" {
				continue
			}

			passwordKeys = append(passwordKeys, key)
		} else if key == "username" {
			continue
		} else {
			credentials[key] = cmd.ui.Ask(T(prompt.DisplayName))
		}
	}

	for i := 0; i < maxLoginTries; i++ {

		// ensure that password gets prompted before other codes (eg. mfa code)
		if passPrompt, ok := prompts["password"]; ok {
			if passwordFlagValue != "" {
				credentials["password"] = passwordFlagValue
				passwordFlagValue = ""
			} else {
				credentials["password"] = cmd.ui.AskForPassword(T(passPrompt.DisplayName))
			}
		}

		for _, key := range passwordKeys {
			credentials[key] = cmd.ui.AskForPassword(T(prompts[key].DisplayName))
		}

		credentialsCopy := make(map[string]string, len(credentials))
		for k, v := range credentials {
			credentialsCopy[k] = v
		}