Mentions on confidential issues doesn't create todos for non-members

CHANGELOG

@@ -14,6 +14,9 @@ v 8.7.0 (unreleased)
   - Implement 'TODOs View' as an option for dashboard preferences !3379 (Elias W.)
   - Gracefully handle notes on deleted commits in merge requests (Stan Hu)
 
+v 8.6.3 (unreleased)
+  - Mentions on confidential issues doesn't create todos for non-members
+
 v 8.6.2
   - Fix dropdown alignment. !3298
   - Fix issuable sidebar overlaps on tablet. !3299

app/services/todo_service.rb

@@ -170,14 +170,30 @@ class TodoService
   end
 
   def filter_mentioned_users(project, target, author)
-    mentioned_users = target.mentioned_users.select do |user|
-      user.can?(:read_project, project)
-    end
-
+    mentioned_users = target.mentioned_users
+    mentioned_users = reject_users_without_access(mentioned_users, project, target)
     mentioned_users.delete(author)
     mentioned_users.uniq
   end
 
+  def reject_users_without_access(users, project, target)
+    if target.is_a?(Note) && target.for_issue?
+      target = target.noteable
+    end
+
+    if target.is_a?(Issue)
+      select_users(users, :read_issue, target)
+    else
+      select_users(users, :read_project, project)
+    end
+  end
+
+  def select_users(users, ability, subject)
+    users.select do |user|
+      user.can?(ability.to_sym, subject)
+    end
+  end
+
   def pending_todos(user, criteria = {})
     valid_keys = [:project_id, :target_id, :target_type, :commit_id]
     user.todos.pending.where(criteria.slice(*valid_keys))

spec/services/todo_service_spec.rb

@@ -2,22 +2,25 @@ require 'spec_helper'
 
 describe TodoService, services: true do
   let(:author) { create(:user) }
-  let(:john_doe) { create(:user, username: 'john_doe') }
-  let(:michael) { create(:user, username: 'michael') }
-  let(:stranger) { create(:user, username: 'stranger') }
+  let(:assignee) { create(:user) }
+  let(:non_member) { create(:user) }
+  let(:member) { create(:user) }
+  let(:admin) { create(:admin) }
+  let(:john_doe) { create(:user) }
   let(:project) { create(:project) }
-  let(:mentions) { [author.to_reference, john_doe.to_reference, michael.to_reference, stranger.to_reference].join(' ') }
+  let(:mentions) { [author, assignee, john_doe, member, non_member, admin].map(&:to_reference).join(' ') }
   let(:service) { described_class.new }
 
   before do
     project.team << [author, :developer]
+    project.team << [member, :developer]
     project.team << [john_doe, :developer]
-    project.team << [michael, :developer]
   end
 
   describe 'Issues' do
     let(:issue) { create(:issue, project: project, assignee: john_doe, author: author, description: mentions) }
     let(:unassigned_issue) { create(:issue, project: project, assignee: nil) }
+    let(:confidential_issue) { create(:issue, :confidential, project: project, author: author, assignee: assignee, description: mentions) }
 
     describe '#new_issue' do
       it 'creates a todo if assigned' do
@@ -37,10 +40,20 @@ describe TodoService, services: true do
       it 'creates a todo for each valid mentioned user' do
         service.new_issue(issue, author)
 
-        should_create_todo(user: michael, target: issue, action: Todo::MENTIONED)
+        should_create_todo(user: member, target: issue, action: Todo::MENTIONED)
         should_not_create_todo(user: author, target: issue, action: Todo::MENTIONED)
         should_not_create_todo(user: john_doe, target: issue, action: Todo::MENTIONED)
-        should_not_create_todo(user: stranger, target: issue, action: Todo::MENTIONED)
+        should_not_create_todo(user: non_member, target: issue, action: Todo::MENTIONED)
+      end
+
+      it 'does not create todo for non project members when issue is confidential' do
+        service.new_issue(confidential_issue, john_doe)
+
+        should_create_todo(user: assignee, target: confidential_issue, author: john_doe, action: Todo::ASSIGNED)
+        should_create_todo(user: author, target: confidential_issue, author: john_doe, action: Todo::MENTIONED)
+        should_create_todo(user: member, target: confidential_issue, author: john_doe, action: Todo::MENTIONED)
+        should_create_todo(user: admin, target: confidential_issue, author: john_doe, action: Todo::MENTIONED)
+        should_not_create_todo(user: john_doe, target: confidential_issue, author: john_doe, action: Todo::MENTIONED)
       end
     end
 
@@ -48,16 +61,26 @@ describe TodoService, services: true do
       it 'creates a todo for each valid mentioned user' do
         service.update_issue(issue, author)
 
-        should_create_todo(user: michael, target: issue, action: Todo::MENTIONED)
+        should_create_todo(user: member, target: issue, action: Todo::MENTIONED)
         should_create_todo(user: john_doe, target: issue, action: Todo::MENTIONED)
         should_not_create_todo(user: author, target: issue, action: Todo::MENTIONED)
-        should_not_create_todo(user: stranger, target: issue, action: Todo::MENTIONED)
+        should_not_create_todo(user: non_member, target: issue, action: Todo::MENTIONED)
       end
 
       it 'does not create a todo if user was already mentioned' do
-        create(:todo, :mentioned, user: michael, project: project, target: issue, author: author)
+        create(:todo, :mentioned, user: member, project: project, target: issue, author: author)
 
-        expect { service.update_issue(issue, author) }.not_to change(michael.todos, :count)
+        expect { service.update_issue(issue, author) }.not_to change(member.todos, :count)
+      end
+
+      it 'does not create todo for non project members when issue is confidential' do
+        service.update_issue(confidential_issue, john_doe)
+
+        should_create_todo(user: author, target: confidential_issue, author: john_doe, action: Todo::MENTIONED)
+        should_create_todo(user: assignee, target: confidential_issue, author: john_doe, action: Todo::MENTIONED)
+        should_create_todo(user: member, target: confidential_issue, author: john_doe, action: Todo::MENTIONED)
+        should_create_todo(user: admin, target: confidential_issue, author: john_doe, action: Todo::MENTIONED)
+        should_not_create_todo(user: john_doe, target: confidential_issue, author: john_doe, action: Todo::MENTIONED)
       end
     end
 
@@ -109,8 +132,10 @@ describe TodoService, services: true do
     describe '#new_note' do
       let!(:first_todo) { create(:todo, :assigned, user: john_doe, project: project, target: issue, author: author) }
       let!(:second_todo) { create(:todo, :assigned, user: john_doe, project: project, target: issue, author: author) }
+      let(:confidential_issue) { create(:issue, :confidential, project: project, author: author, assignee: assignee) }
       let(:note) { create(:note, project: project, noteable: issue, author: john_doe, note: mentions) }
       let(:note_on_commit) { create(:note_on_commit, project: project, author: john_doe, note: mentions) }
+      let(:note_on_confidential_issue) { create(:note_on_issue, noteable: confidential_issue, project: project, note: mentions) }
       let(:note_on_project_snippet) { create(:note_on_project_snippet, project: project, author: john_doe, note: mentions) }
       let(:award_note) { create(:note, :award, project: project, noteable: issue, author: john_doe, note: 'thumbsup') }
       let(:system_note) { create(:system_note, project: project, noteable: issue) }
@@ -142,19 +167,29 @@ describe TodoService, services: true do
       it 'creates a todo for each valid mentioned user' do
         service.new_note(note, john_doe)
 
-        should_create_todo(user: michael, target: issue, author: john_doe, action: Todo::MENTIONED, note: note)
+        should_create_todo(user: member, target: issue, author: john_doe, action: Todo::MENTIONED, note: note)
         should_create_todo(user: author, target: issue, author: john_doe, action: Todo::MENTIONED, note: note)
         should_not_create_todo(user: john_doe, target: issue, author: john_doe, action: Todo::MENTIONED, note: note)
-        should_not_create_todo(user: stranger, target: issue, author: john_doe, action: Todo::MENTIONED, note: note)
+        should_not_create_todo(user: non_member, target: issue, author: john_doe, action: Todo::MENTIONED, note: note)
+      end
+
+      it 'does not create todo for non project members when leaving a note on a confidential issue' do
+        service.new_note(note_on_confidential_issue, john_doe)
+
+        should_create_todo(user: author, target: confidential_issue, author: john_doe, action: Todo::MENTIONED, note: note_on_confidential_issue)
+        should_create_todo(user: assignee, target: confidential_issue, author: john_doe, action: Todo::MENTIONED, note: note_on_confidential_issue)
+        should_create_todo(user: member, target: confidential_issue, author: john_doe, action: Todo::MENTIONED, note: note_on_confidential_issue)
+        should_create_todo(user: admin, target: confidential_issue, author: john_doe, action: Todo::MENTIONED, note: note_on_confidential_issue)
+        should_not_create_todo(user: john_doe, target: confidential_issue, author: john_doe, action: Todo::MENTIONED, note: note_on_confidential_issue)
       end
 
       it 'creates a todo for each valid mentioned user when leaving a note on commit' do
         service.new_note(note_on_commit, john_doe)
 
-        should_create_todo(user: michael, target_id: nil, target_type: 'Commit', commit_id: note_on_commit.commit_id, author: john_doe, action: Todo::MENTIONED, note: note_on_commit)
+        should_create_todo(user: member, target_id: nil, target_type: 'Commit', commit_id: note_on_commit.commit_id, author: john_doe, action: Todo::MENTIONED, note: note_on_commit)
         should_create_todo(user: author, target_id: nil, target_type: 'Commit', commit_id: note_on_commit.commit_id, author: john_doe, action: Todo::MENTIONED, note: note_on_commit)
         should_not_create_todo(user: john_doe, target_id: nil, target_type: 'Commit', commit_id: note_on_commit.commit_id, author: john_doe, action: Todo::MENTIONED, note: note_on_commit)
-        should_not_create_todo(user: stranger, target_id: nil, target_type: 'Commit', commit_id: note_on_commit.commit_id, author: john_doe, action: Todo::MENTIONED, note: note_on_commit)
+        should_not_create_todo(user: non_member, target_id: nil, target_type: 'Commit', commit_id: note_on_commit.commit_id, author: john_doe, action: Todo::MENTIONED, note: note_on_commit)
       end
 
       it 'does not create todo when leaving a note on snippet' do
@@ -185,10 +220,10 @@ describe TodoService, services: true do
       it 'creates a todo for each valid mentioned user' do
         service.new_merge_request(mr_assigned, author)
 
-        should_create_todo(user: michael, target: mr_assigned, action: Todo::MENTIONED)
+        should_create_todo(user: member, target: mr_assigned, action: Todo::MENTIONED)
         should_not_create_todo(user: author, target: mr_assigned, action: Todo::MENTIONED)
         should_not_create_todo(user: john_doe, target: mr_assigned, action: Todo::MENTIONED)
-        should_not_create_todo(user: stranger, target: mr_assigned, action: Todo::MENTIONED)
+        should_not_create_todo(user: non_member, target: mr_assigned, action: Todo::MENTIONED)
       end
     end
 
@@ -196,16 +231,16 @@ describe TodoService, services: true do
       it 'creates a todo for each valid mentioned user' do
         service.update_merge_request(mr_assigned, author)
 
-        should_create_todo(user: michael, target: mr_assigned, action: Todo::MENTIONED)
+        should_create_todo(user: member, target: mr_assigned, action: Todo::MENTIONED)
         should_create_todo(user: john_doe, target: mr_assigned, action: Todo::MENTIONED)
         should_not_create_todo(user: author, target: mr_assigned, action: Todo::MENTIONED)
-        should_not_create_todo(user: stranger, target: mr_assigned, action: Todo::MENTIONED)
+        should_not_create_todo(user: non_member, target: mr_assigned, action: Todo::MENTIONED)
       end
 
       it 'does not create a todo if user was already mentioned' do
-        create(:todo, :mentioned, user: michael, project: project, target: mr_assigned, author: author)
+        create(:todo, :mentioned, user: member, project: project, target: mr_assigned, author: author)
 
-        expect { service.update_merge_request(mr_assigned, author) }.not_to change(michael.todos, :count)
+        expect { service.update_merge_request(mr_assigned, author) }.not_to change(member.todos, :count)
       end
     end