License information can now be retrieved via the API

CHANGELOG-EE

 v 8.3.0 (unreleased)
+  - License information can now be retrieved via the API
 
 v 8.2.0
   - Invalidate stored jira password if the endpoint URL is changed
@@ -26,7 +27,7 @@ v 8.1.0
   - Add documentation for "Share project with group" API call
   - Added an issues template (Hannes Rosenögger)
   - Add documentation for "Share project with group" API call 
-  - Abiliy to disable 'Share with Group' feature (via UI and API)
+  - Ability to disable 'Share with Group' feature (via UI and API)
 
 v 8.0.6
   - No EE-specific changes

doc/api/README.md

@@ -23,6 +23,7 @@
 - [Namespaces](namespaces.md)
 - [Settings](settings.md)
 - [Keys](keys.md)
+- [License](license.md)
 
 ## Clients
 

doc/api/license.md

+# License
+
+## Retrieve information about the current license
+
+In order to retrieve the license information, you need to authenticate yourself
+as an admin.
+
+```
+GET /license
+```
+
+```json
+{
+  "starts_at": "2015-10-24",
+  "expires_at": "2016-10-24",
+  "licensee": {
+    "Name": "John Doe",
+    "Company": "Doe, Inc.",
+    "Email": "john@doe.com"
+  },
+  "user_limit": 100,
+  "active_users": 60
+}
+```
\ No newline at end of file

lib/api/api.rb

@@ -56,5 +56,6 @@ module API
     mount Settings
     mount Keys
     mount Tags
+    mount LicenseInfo
   end
 end

lib/api/entities.rb

@@ -373,5 +373,17 @@ module API
         end
       end
     end
+
+    class License < Grape::Entity
+      expose :starts_at, :expires_at, :licensee
+
+      expose :user_limit do |license, options|
+        license.restricted?(:active_user_count) ? license.restrictions[:active_user_count] : 0
+      end
+
+      expose :active_users do |license, options|
+        ::User.active.count
+      end
+    end
   end
 end

lib/api/license_info.rb

+module API
+  class LicenseInfo < Grape::API
+    before { authenticated_as_admin! }
+
+    resource :license do
+
+      # Get information on the currently active license
+      #
+      # Example request:
+      #   GET /license
+      get do
+        @license = License.current
+
+        present @license, with: Entities::License
+      end
+    end
+  end
+end

spec/factories.rb

@@ -225,6 +225,7 @@ FactoryGirl.define do
 
   factory :gitlab_license, class: "Gitlab::License" do
     starts_at { Date.today - 1.month }
+    expires_at { Date.today + 11.months }
     licensee do
       { "Name" => FFaker::Name.name }
     end

spec/requests/api/license_spec.rb

+require 'spec_helper'
+
+describe API::API, api: true  do
+  include ApiHelpers
+
+  let(:gl_license)  { build(:gitlab_license) }
+  let(:license)     { build(:license, data: gl_license.export) }
+  let(:admin) { create(:admin) }
+  let(:user) { create(:user) }
+
+  describe 'GET /license' do
+    it 'should retrieve the license information if admin is logged in' do
+      get api('/license', admin)
+      expect(response.status).to eq 200
+      expect(json_response['user_limit']).to eq 0
+      expect(Date.parse(json_response['starts_at'])).to eq Date.today - 1.month
+      expect(Date.parse(json_response['expires_at'])).to eq Date.today + 11.months
+      expect(json_response['active_users']).to eq 1
+      expect(json_response['licensee']).to_not be_empty
+    end
+
+    it 'should deny access if not admin' do
+      get api('/license', user)
+      expect(response.status).to eq 403
+    end
+  end
+end