Merge branch '46548-open-source-alternative-to-recaptcha-for-gitlab-com-registration' into 'master'

Open source alternative to reCAPTCHA for GitLab.com registration

See merge request gitlab-org/gitlab-ce!31625

3 files changed, 91 insertions, 0 deletions

diff --git a/spec/controllers/registrations_controller_spec.rb b/spec/controllers/registrations_controller_spec.rb
index faf3c990cb2..d05482f095e 100644
--- a/spec/controllers/registrations_controller_spec.rb
+++ b/spec/controllers/registrations_controller_spec.rb
@@ -5,6 +5,10 @@ require 'spec_helper'
 describe RegistrationsController do
   include TermsHelper
 
+  before do
+    stub_feature_flags(invisible_captcha: false)
+  end
+
   describe '#create' do
     let(:base_user_params) { { name: 'new_user', username: 'new_username', email: 'new@user.com', password: 'Any_password' } }
     let(:user_params) { { user: base_user_params } }
@@ -88,6 +92,88 @@ describe RegistrationsController do
       end
     end
 
+    context 'when invisible captcha is enabled' do
+      before do
+        stub_feature_flags(invisible_captcha: true)
+        InvisibleCaptcha.timestamp_threshold = treshold
+      end
+
+      let(:treshold) { 4 }
+      let(:session_params) { { invisible_captcha_timestamp: form_rendered_time.iso8601 } }
+      let(:form_rendered_time) { Time.current }
+      let(:submit_time) { form_rendered_time + treshold }
+      let(:auth_log_attributes) do
+        {
+          message: auth_log_message,
+          env: :invisible_captcha_signup_bot_detected,
+          ip: '0.0.0.0',
+          request_method: 'POST',
+          fullpath: '/users'
+        }
+      end
+
+      describe 'the honeypot has not been filled and the signup form has not been submitted too quickly' do
+        it 'creates an account' do
+          travel_to(submit_time) do
+            expect { post(:create, params: user_params, session: session_params) }.to change(User, :count).by(1)
+          end
+        end
+      end
+
+      describe 'honeypot spam detection' do
+        let(:user_params) { super().merge(firstname: 'Roy', lastname: 'Batty') }
+        let(:auth_log_message) { 'Invisible_Captcha_Honeypot_Request' }
+
+        it 'logs the request, refuses to create an account and renders an empty body' do
+          travel_to(submit_time) do
+            expect(Gitlab::Metrics).to receive(:counter)
+              .with(:bot_blocked_by_invisible_captcha_honeypot, 'Counter of blocked sign up attempts with filled honeypot')
+              .and_call_original
+            expect(Gitlab::AuthLogger).to receive(:error).with(auth_log_attributes).once
+            expect { post(:create, params: user_params, session: session_params) }.not_to change(User, :count)
+            expect(response).to have_gitlab_http_status(200)
+            expect(response.body).to be_empty
+          end
+        end
+      end
+
+      describe 'timestamp spam detection' do
+        let(:auth_log_message) { 'Invisible_Captcha_Timestamp_Request' }
+
+        context 'the sign up form has been submitted without the invisible_captcha_timestamp parameter' do
+          let(:session_params) { nil }
+
+          it 'logs the request, refuses to create an account and displays a flash alert' do
+            travel_to(submit_time) do
+              expect(Gitlab::Metrics).to receive(:counter)
+                .with(:bot_blocked_by_invisible_captcha_timestamp, 'Counter of blocked sign up attempts with invalid timestamp')
+                .and_call_original
+              expect(Gitlab::AuthLogger).to receive(:error).with(auth_log_attributes).once
+              expect { post(:create, params: user_params, session: session_params) }.not_to change(User, :count)
+              expect(response).to redirect_to(new_user_session_path)
+              expect(flash[:alert]).to include 'That was a bit too quick! Please resubmit.'
+            end
+          end
+        end
+
+        context 'the sign up form has been submitted too quickly' do
+          let(:submit_time) { form_rendered_time }
+
+          it 'logs the request, refuses to create an account and displays a flash alert' do
+            travel_to(submit_time) do
+              expect(Gitlab::Metrics).to receive(:counter)
+                .with(:bot_blocked_by_invisible_captcha_timestamp, 'Counter of blocked sign up attempts with invalid timestamp')
+                .and_call_original
+              expect(Gitlab::AuthLogger).to receive(:error).with(auth_log_attributes).once
+              expect { post(:create, params: user_params, session: session_params) }.not_to change(User, :count)
+              expect(response).to redirect_to(new_user_session_path)
+              expect(flash[:alert]).to include 'That was a bit too quick! Please resubmit.'
+            end
+          end
+        end
+      end
+    end
+
     context 'when terms are enforced' do
       before do
         enforce_terms
diff --git a/spec/features/invites_spec.rb b/spec/features/invites_spec.rb
index 855cf22642e..832c4a57aa3 100644
--- a/spec/features/invites_spec.rb
+++ b/spec/features/invites_spec.rb
@@ -10,6 +10,7 @@ describe 'Invites' do
   let(:group_invite) { group.group_members.invite.last }
 
   before do
+    stub_feature_flags(invisible_captcha: false)
     project.add_maintainer(owner)
     group.add_user(owner, Gitlab::Access::OWNER)
     group.add_developer('user@example.com', owner)
diff --git a/spec/features/users/signup_spec.rb b/spec/features/users/signup_spec.rb
index f5897bffaf0..cf57fafc4f5 100644
--- a/spec/features/users/signup_spec.rb
+++ b/spec/features/users/signup_spec.rb
@@ -5,6 +5,10 @@ require 'spec_helper'
 describe 'Signup' do
   include TermsHelper
 
+  before do
+    stub_feature_flags(invisible_captcha: false)
+  end
+
   let(:new_user) { build_stubbed(:user) }
 
   describe 'username validation', :js do