Two factor authentication extension for Devise
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README.md

Two factor authentication for Devise

Features

  • control sms code pattern
  • configure max login attempts
  • per user level control if he really need two factor authentication
  • your own sms logic

Configuration

To enable two factor authentication for User model, you should add two_factor_authentication to your devise line, like:

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable, :two_factor_authenticatable

Two default parameters

  config.login_code_random_pattern = /\w+/
  config.max_login_attempts = 3

Possible random patterns

/\d{5}/
/\w{4,8}/

see more https://github.com/benburkert/randexp

By default second factor authentication enabled for each user, you can change it with this method in your User mdoel:

  def need_two_factor_authentication?(request)
    request.ip != '127.0.0.1'
  end

this will disable two factor authentication for local users

Your send sms logic should be in this method in your User model:

  def send_two_factor_authentication_code(code)
    puts code
  end

This example just puts code in logs