accounts-frontend/src/services/authFlow/MfaState.js

// @flow
import logger from 'services/logger';

import { getCredentials } from 'components/auth/reducer';

import AbstractState from './AbstractState';
import CompleteState from './CompleteState';
import PasswordState from './PasswordState';

import type { AuthContext } from './AuthFlow';

export default class MfaState extends AbstractState {
  enter(context: AuthContext) {
    const { login, password, isTotpRequired } = getCredentials(
      context.getState(),
    );

    if (login && password && isTotpRequired) {
      context.navigate('/mfa');
    } else {
      context.setState(new CompleteState());
    }
  }

  resolve(context: AuthContext, { totp }: { totp: string }) {
    const { login, password, rememberMe } = getCredentials(context.getState());

    return context
      .run('login', {
        totp,
        password,
        rememberMe,
        login,
      })
      .then(() => context.setState(new CompleteState()))
      .catch((err = {}) => err.errors || logger.warn('Error logging in', err));
  }

  goBack(context: AuthContext) {
    context.setState(new PasswordState());
  }
}