Comments on confidential issues doesn't show in activity feed to non-members

CHANGELOG

@@ -5,6 +5,9 @@ v 8.7.0 (unreleased)
   - Make HTTP(s) label consistent on clone bar (Stan Hu)
   - Fix avatar stretching by providing a cropping feature
 
+v 8.6.2 (unreleased)
+  - Comments on confidential issues don't show up in activity feed to non-members
+
 v 8.6.1
   - Add option to reload the schema before restoring a database backup. !2807
   - Display navigation controls on mobile. !3214

app/models/event.rb

@@ -80,8 +80,8 @@ class Event < ActiveRecord::Base
       true
     elsif created_project?
       true
-    elsif issue?
-      Ability.abilities.allowed?(user, :read_issue, issue)
+    elsif issue? || issue_note?
+      Ability.abilities.allowed?(user, :read_issue, note? ? note_target : target)
     else
       ((merge_request? || note?) && target) || milestone?
     end
@@ -298,6 +298,10 @@ class Event < ActiveRecord::Base
     target.noteable_type == "Commit"
   end
 
+  def issue_note?
+    note? && target && target.noteable_type == "Issue"
+  end
+
   def note_project_snippet?
     target.noteable_type == "Snippet"
   end

spec/models/event_spec.rb

@@ -66,21 +66,25 @@ describe Event, models: true do
   end
 
   describe '#proper?' do
-    context 'issue event' do
     let(:project) { create(:empty_project, :public) }
     let(:non_member) { create(:user) }
     let(:member)  { create(:user) }
     let(:author) { create(:author) }
     let(:assignee) { create(:user) }
     let(:admin) { create(:admin) }
-      let(:event) { Event.new(project: project, action: Event::CREATED, target: issue, author_id: author.id) }
+    let(:issue) { create(:issue, project: project, author: author, assignee: assignee) }
+    let(:confidential_issue) { create(:issue, :confidential, project: project, author: author, assignee: assignee) }
+    let(:note_on_issue) { create(:note_on_issue, noteable: issue, project: project) }
+    let(:note_on_confidential_issue) { create(:note_on_issue, noteable: confidential_issue, project: project) }
+    let(:event) { Event.new(project: project, target: target, author_id: author.id) }
 
     before do
       project.team << [member, :developer]
     end
 
+    context 'issue event' do
       context 'for non confidential issues' do
-        let(:issue) { create(:issue, project: project, author: author, assignee: assignee) }
+        let(:target) { issue }
 
         it { expect(event.proper?(non_member)).to eq true }
         it { expect(event.proper?(author)).to eq true }
@@ -90,7 +94,29 @@ describe Event, models: true do
       end
 
       context 'for confidential issues' do
-        let(:issue) { create(:issue, :confidential, project: project, author: author, assignee: assignee) }
+        let(:target) { confidential_issue }
+
+        it { expect(event.proper?(non_member)).to eq false }
+        it { expect(event.proper?(author)).to eq true }
+        it { expect(event.proper?(assignee)).to eq true }
+        it { expect(event.proper?(member)).to eq true }
+        it { expect(event.proper?(admin)).to eq true }
+      end
+    end
+
+    context 'note event' do
+      context 'on non confidential issues' do
+        let(:target) { note_on_issue }
+
+        it { expect(event.proper?(non_member)).to eq true }
+        it { expect(event.proper?(author)).to eq true }
+        it { expect(event.proper?(assignee)).to eq true }
+        it { expect(event.proper?(member)).to eq true }
+        it { expect(event.proper?(admin)).to eq true }
+      end
+
+      context 'on confidential issues' do
+        let(:target) { note_on_confidential_issue }
 
         it { expect(event.proper?(non_member)).to eq false }
         it { expect(event.proper?(author)).to eq true }