Do not expose trigger token when user should not see it

3 files changed, 35 insertions, 3 deletions

diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index a2a3c0a16d7..829d6fb13d4 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -1216,8 +1216,11 @@ module API
     end
 
     class Trigger < Grape::Entity
+      include ::API::Helpers::Presentable
+
       expose :id
-      expose :token, :description
+      expose :token
+      expose :description
       expose :created_at, :updated_at, :last_used
       expose :owner, using: Entities::UserBasic
     end
diff --git a/lib/api/helpers/presentable.rb b/lib/api/helpers/presentable.rb
new file mode 100644
index 00000000000..973c2132efe
--- /dev/null
+++ b/lib/api/helpers/presentable.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+module API
+  module Helpers
+    ##
+    # This module makes it possible to use `app/presenters` with
+    # Grape Entities. It instantiates model presenter and passes
+    # options defined in the API endpoint to the presenter itself.
+    #
+    #   present object, with: Entities::Something,
+    #                   current_user: current_user,
+    #                   another_option: 'my options'
+    #
+    # Example above will make `current_user` and `another_option`
+    # values available in the subclass of `Gitlab::View::Presenter`
+    # thorough a separate method in the presenter.
+    #
+    # The model class needs to have `::Presentable` module mixed in
+    # if you want to use `API::Helpers::Presentable`.
+    #
+    module Presentable
+      extend ActiveSupport::Concern
+
+      def initialize(object, options = {})
+        super(object.present(options), options)
+      end
+    end
+  end
+end
diff --git a/lib/api/triggers.rb b/lib/api/triggers.rb
index 3ce1529f259..7b8691171f0 100644
--- a/lib/api/triggers.rb
+++ b/lib/api/triggers.rb
@@ -51,7 +51,7 @@ module API
 
         triggers = user_project.triggers.includes(:trigger_requests)
 
-        present paginate(triggers), with: Entities::Trigger
+        present paginate(triggers), with: Entities::Trigger, current_user: current_user
       end
       # rubocop: enable CodeReuse/ActiveRecord
 
@@ -68,7 +68,7 @@ module API
         trigger = user_project.triggers.find(params.delete(:trigger_id))
         break not_found!('Trigger') unless trigger
 
-        present trigger, with: Entities::Trigger
+        present trigger, with: Entities::Trigger, current_user: current_user
       end
 
       desc 'Create a trigger' do