Fire system hooks when a user is created via LDAP or OAuth

Closes #37073

app/services/concerns/users/new_user_notifier.rb

+module Users
+  module NewUserNotifier
+    def notify_new_user(user, reset_token)
+      log_info("User \"#{user.name}\" (#{user.email}) was created")
+      notification_service.new_user(user, reset_token) if reset_token
+      system_hook_service.execute_hooks_for(user, :create)
+    end
+  end
+end

app/services/users/create_service.rb

 module Users
   class CreateService < BaseService
+    include NewUserNotifier
+
     def initialize(current_user, params = {})
       @current_user = current_user
       @params = params.dup
@@ -10,11 +12,7 @@ module Users
 
       @reset_token = user.generate_reset_token if user.recently_sent_password_reset?
 
-      if user.save
-        log_info("User \"#{user.name}\" (#{user.email}) was created")
-        notification_service.new_user(user, @reset_token) if @reset_token
-        system_hook_service.execute_hooks_for(user, :create)
-      end
+      notify_new_user(user, @reset_token) if user.save
 
       user
     end

app/services/users/update_service.rb

 module Users
   class UpdateService < BaseService
+    include NewUserNotifier
+
     def initialize(user, params = {})
       @user = user
       @params = params.dup
@@ -10,7 +12,11 @@ module Users
 
       assign_attributes(&block)
 
+      user_exists = @user.persisted?
+
       if @user.save(validate: validate)
+        notify_new_user(@user, nil) unless user_exists
+
         success
       else
         error(@user.errors.full_messages.uniq.join('. '))

changelogs/unreleased/sh-system-hooks-ldap-users.yml

+---
+title: Fire system hooks when a user is created via LDAP
+merge_request:
+author:
+type: fixed

spec/services/users/update_service_spec.rb

@@ -37,7 +37,10 @@ describe Users::UpdateService do
 
   describe '#execute!' do
     it 'updates the name' do
-      result = update_user(user, name: 'New Name')
+      service = described_class.new(user, name: 'New Name')
+      expect(service).not_to receive(:notify_new_user)
+
+      result = service.execute!
 
       expect(result).to be true
       expect(user.name).to eq('New Name')
@@ -49,6 +52,18 @@ describe Users::UpdateService do
       end.to raise_error(ActiveRecord::RecordInvalid)
     end
 
+    it 'fires system hooks when a new user is saved' do
+      system_hook_service = spy(:system_hook_service)
+      user = build(:user)
+      service = described_class.new(user, name: 'John Doe')
+      expect(service).to receive(:notify_new_user).and_call_original
+      expect(service).to receive(:system_hook_service).and_return(system_hook_service)
+
+      service.execute
+
+      expect(system_hook_service).to have_received(:execute_hooks_for).with(user, :create)
+    end
+
     def update_user(user, opts)
       described_class.new(user, opts).execute!
     end