module API class Notes < Grape::API include PaginationParams before { authenticate! } NOTEABLE_TYPES = [Issue, MergeRequest, Snippet].freeze params do requires :id, type: String, desc: 'The ID of a project' end resource :projects, requirements: { id: %r{[^/]+} } do NOTEABLE_TYPES.each do |noteable_type| noteables_str = noteable_type.to_s.underscore.pluralize desc 'Get a list of project +noteable+ notes' do success Entities::Note end params do requires :noteable_id, type: Integer, desc: 'The ID of the noteable' use :pagination end get ":id/#{noteables_str}/:noteable_id/notes" do noteable = find_project_noteable(noteables_str, params[:noteable_id]) if can?(current_user, noteable_read_ability_name(noteable), noteable) # We exclude notes that are cross-references and that cannot be viewed # by the current user. By doing this exclusion at this level and not # at the DB query level (which we cannot in that case), the current # page can have less elements than :per_page even if # there's more than one page. notes = # paginate() only works with a relation. This could lead to a # mismatch between the pagination headers info and the actual notes # array returned, but this is really a edge-case. paginate(noteable.notes) .reject { |n| n.cross_reference_not_visible_for?(current_user) } present notes, with: Entities::Note else not_found!("Notes") end end desc 'Get a single +noteable+ note' do success Entities::Note end params do requires :note_id, type: Integer, desc: 'The ID of a note' requires :noteable_id, type: Integer, desc: 'The ID of the noteable' end get ":id/#{noteables_str}/:noteable_id/notes/:note_id" do noteable = find_project_noteable(noteables_str, params[:noteable_id]) note = noteable.notes.find(params[:note_id]) can_read_note = can?(current_user, noteable_read_ability_name(noteable), noteable) && !note.cross_reference_not_visible_for?(current_user) if can_read_note present note, with: Entities::Note else not_found!("Note") end end desc 'Create a new +noteable+ note' do success Entities::Note end params do requires :noteable_id, type: Integer, desc: 'The ID of the noteable' requires :body, type: String, desc: 'The content of a note' optional :created_at, type: String, desc: 'The creation date of the note' end post ":id/#{noteables_str}/:noteable_id/notes" do noteable = find_project_noteable(noteables_str, params[:noteable_id]) opts = { note: params[:body], noteable_type: noteables_str.classify, noteable_id: noteable.id } if can?(current_user, noteable_read_ability_name(noteable), noteable) if params[:created_at] && (current_user.admin? || user_project.owner == current_user) opts[:created_at] = params[:created_at] end note = ::Notes::CreateService.new(user_project, current_user, opts).execute if note.valid? present note, with: Entities.const_get(note.class.name) else not_found!("Note #{note.errors.messages}") end else not_found!("Note") end end desc 'Update an existing +noteable+ note' do success Entities::Note end params do requires :noteable_id, type: Integer, desc: 'The ID of the noteable' requires :note_id, type: Integer, desc: 'The ID of a note' requires :body, type: String, desc: 'The content of a note' end put ":id/#{noteables_str}/:noteable_id/notes/:note_id" do note = user_project.notes.find(params[:note_id]) authorize! :admin_note, note opts = { note: params[:body] } note = ::Notes::UpdateService.new(user_project, current_user, opts).execute(note) if note.valid? present note, with: Entities::Note else render_api_error!("Failed to save note #{note.errors.messages}", 400) end end desc 'Delete a +noteable+ note' do success Entities::Note end params do requires :noteable_id, type: Integer, desc: 'The ID of the noteable' requires :note_id, type: Integer, desc: 'The ID of a note' end delete ":id/#{noteables_str}/:noteable_id/notes/:note_id" do note = user_project.notes.find(params[:note_id]) authorize! :admin_note, note ::Notes::DestroyService.new(user_project, current_user).execute(note) end end end helpers do def find_project_noteable(noteables_str, noteable_id) public_send("find_project_#{noteables_str.singularize}", noteable_id) end def noteable_read_ability_name(noteable) "read_#{noteable.class.to_s.underscore}".to_sym end end end end