Pass the remember_me option into the u2f form and support it while authenticating

Matches the changes done for non-u2f two-factor auth

CHANGELOG

@@ -4,6 +4,7 @@ v 8.12.0 (unreleased)
   - Filter tags by name !6121
   - Make push events have equal vertical spacing.
   - Add two-factor recovery endpoint to internal API !5510
+  - Pass the "Remember me" value to the U2F authentication form
   - Remove vendor prefixes for linear-gradient CSS (ClemMakesApps)
   - Add font color contrast to external label in admin area (ClemMakesApps)
   - Change logo animation to CSS (ClemMakesApps)

app/controllers/concerns/authenticates_with_two_factor.rb

@@ -62,6 +62,7 @@ module AuthenticatesWithTwoFactor
       session.delete(:otp_user_id)
       session.delete(:challenges)
+      remember_me(user) if user_params[:remember_me] == '1'
       sign_in(user)
     else
       flash.now[:alert] = 'Authentication via U2F device failed.'

app/views/devise/sessions/two_factor.html.haml

@@ -18,6 +18,5 @@
             = f.submit "Verify code", class: "btn btn-save"
       - if @user.two_factor_u2f_enabled?
-
         %hr
-        = render "u2f/authenticate"
+        = render "u2f/authenticate", locals: { params: params, resource: resource, resource_name: resource_name }

app/views/u2f/_authenticate.html.haml

@@ -20,6 +20,8 @@
   %div
     %p We heard back from your U2F device. Click this button to authenticate with the GitLab server.
     = form_tag(new_user_session_path, method: :post) do |f|
+      - resource_params = params[resource_name].presence || params
+      = hidden_field_tag 'user[remember_me]', resource_params.fetch(:remember_me, 0)
       = hidden_field_tag 'user[device_response]', nil, class: 'form-control', required: true, id: "js-device-response"
       = submit_tag "Authenticate via U2F Device", class: "btn btn-success"

spec/controllers/sessions_controller_spec.rb

@@ -136,6 +136,29 @@ describe SessionsController do
         post(:create, { user: user_params }, { otp_user_id: user.id })
       end
+      context 'remember_me field' do
+        it 'sets a remember_user_token cookie when enabled' do
+          allow(U2fRegistration).to receive(:authenticate).and_return(true)
+          allow(controller).to receive(:find_user).and_return(user)
+          expect(controller).
+            to receive(:remember_me).with(user).and_call_original
+
+          authenticate_2fa_u2f(remember_me: '1', login: user.username, device_response: "{}")
+
+          expect(response.cookies['remember_user_token']).to be_present
+        end
+
+        it 'does nothing when disabled' do
+          allow(U2fRegistration).to receive(:authenticate).and_return(true)
+          allow(controller).to receive(:find_user).and_return(user)
+          expect(controller).not_to receive(:remember_me)
+
+          authenticate_2fa_u2f(remember_me: '0', login: user.username, device_response: "{}")
+
+          expect(response.cookies['remember_user_token']).to be_nil
+        end
+      end
+
       it "creates an audit log record" do
         allow(U2fRegistration).to receive(:authenticate).and_return(true)
         expect { authenticate_2fa_u2f(login: user.username, device_response: "{}") }.to change { SecurityEvent.count }.by(1)

spec/features/u2f_spec.rb

@@ -156,6 +156,7 @@ feature 'Using U2F (Universal 2nd Factor) Devices for Authentication', feature:
     describe "when 2FA via OTP is disabled" do
       it "allows logging in with the U2F device" do
+        user.update_attribute(:otp_required_for_login, false)
         login_with(user)
         @u2f_device.respond_to_u2f_authentication
@@ -181,6 +182,19 @@ feature 'Using U2F (Universal 2nd Factor) Devices for Authentication', feature:
       end
     end
+    it 'persists remember_me value via hidden field' do
+      login_with(user, remember: true)
+
+      @u2f_device.respond_to_u2f_authentication
+      click_on "Login Via U2F Device"
+      expect(page.body).to match('We heard back from your U2F device')
+
+      within 'div#js-authenticate-u2f' do
+        field = first('input#user_remember_me', visible: false)
+        expect(field.value).to eq '1'
+      end
+    end
+
     describe "when a given U2F device has already been registered by another user" do
       describe "but not the current user" do
         it "does not allow logging in with that particular device" do

spec/javascripts/fixtures/u2f/authenticate.html.haml

-= render partial: "u2f/authenticate", locals: { new_user_session_path: "/users/sign_in" }
+= render partial: "u2f/authenticate", locals: { new_user_session_path: "/users/sign_in", params: {}, resource_name: "user" }