112 lines
3.6 KiB
Ruby
112 lines
3.6 KiB
Ruby
# frozen_string_literal: true
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# == AuthenticatesWithTwoFactor
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#
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# Controller concern to handle two-factor authentication
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module AuthenticatesWithTwoFactor
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extend ActiveSupport::Concern
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# Store the user's ID in the session for later retrieval and render the
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# two factor code prompt
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#
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# The user must have been authenticated with a valid login and password
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# before calling this method!
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#
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# user - User record
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#
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# Returns nil
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def prompt_for_two_factor(user)
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# Set @user for Devise views
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@user = user # rubocop:disable Gitlab/ModuleWithInstanceVariables
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return handle_locked_user(user) unless user.can?(:log_in)
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session[:otp_user_id] = user.id
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setup_u2f_authentication(user)
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render 'devise/sessions/two_factor'
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end
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def handle_locked_user(user)
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clear_two_factor_attempt!
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locked_user_redirect(user)
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end
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def locked_user_redirect(user)
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flash.now[:alert] = locked_user_redirect_alert(user)
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render 'devise/sessions/new'
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end
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def authenticate_with_two_factor
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user = self.resource = find_user
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return handle_locked_user(user) unless user.can?(:log_in)
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if user_params[:otp_attempt].present? && session[:otp_user_id]
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authenticate_with_two_factor_via_otp(user)
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elsif user_params[:device_response].present? && session[:otp_user_id]
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authenticate_with_two_factor_via_u2f(user)
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elsif user && user.valid_password?(user_params[:password])
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prompt_for_two_factor(user)
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end
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end
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private
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def locked_user_redirect_alert(user)
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user.access_locked? ? _('Your account is locked.') : _('Invalid Login or password')
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end
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def clear_two_factor_attempt!
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session.delete(:otp_user_id)
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end
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def authenticate_with_two_factor_via_otp(user)
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if valid_otp_attempt?(user)
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# Remove any lingering user data from login
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session.delete(:otp_user_id)
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remember_me(user) if user_params[:remember_me] == '1'
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user.save!
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sign_in(user, message: :two_factor_authenticated, event: :authentication)
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else
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user.increment_failed_attempts!
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Gitlab::AppLogger.info("Failed Login: user=#{user.username} ip=#{request.remote_ip} method=OTP")
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flash.now[:alert] = _('Invalid two-factor code.')
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prompt_for_two_factor(user)
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end
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end
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# Authenticate using the response from a U2F (universal 2nd factor) device
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def authenticate_with_two_factor_via_u2f(user)
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if U2fRegistration.authenticate(user, u2f_app_id, user_params[:device_response], session[:challenge])
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# Remove any lingering user data from login
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session.delete(:otp_user_id)
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session.delete(:challenge)
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remember_me(user) if user_params[:remember_me] == '1'
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sign_in(user, message: :two_factor_authenticated, event: :authentication)
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else
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user.increment_failed_attempts!
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Gitlab::AppLogger.info("Failed Login: user=#{user.username} ip=#{request.remote_ip} method=U2F")
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flash.now[:alert] = _('Authentication via U2F device failed.')
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prompt_for_two_factor(user)
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end
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end
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# Setup in preparation of communication with a U2F (universal 2nd factor) device
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# Actual communication is performed using a Javascript API
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# rubocop: disable CodeReuse/ActiveRecord
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def setup_u2f_authentication(user)
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key_handles = user.u2f_registrations.pluck(:key_handle)
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u2f = U2F::U2F.new(u2f_app_id)
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if key_handles.present?
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sign_requests = u2f.authentication_requests(key_handles)
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session[:challenge] ||= u2f.challenge
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gon.push(u2f: { challenge: session[:challenge], app_id: u2f_app_id,
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sign_requests: sign_requests })
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end
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end
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# rubocop: enable CodeReuse/ActiveRecord
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end
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