rhcc-authenticate-refactored.rb

VALID_EMAIL_REGEX = /\A([\w+\-].?)+@[a-z\d\-]+(\.[a-z]+)*\.[a-z]+\z/i

def authenticate email, password
  user = User.find_by_email email
  
  if password.present? && valid_email?(email) && user.present? && correct_password?(user, password)
    user
  else
    false
  end
end

def valid_email? email
  email =~ VALID_EMAIL_REGEX
end

def correct_password? user, password
  encrypted_password = BCrypt::Password.new password
  user.encrypted_password == encrypted_password
end