FEATURE: anonymized site statistics

app/controllers/site_controller.rb

@@ -3,7 +3,7 @@ require_dependency 'site_serializer'
 class SiteController < ApplicationController
   layout false
   skip_before_filter :preload_json, :check_xhr
-  skip_before_filter :redirect_to_login_if_required, only: ['basic_info']
+  skip_before_filter :redirect_to_login_if_required, only: ['basic_info', 'statistics']
 
   def site
     render json: Site.json_for(guardian)
@@ -42,4 +42,9 @@ class SiteController < ApplicationController
     # this info is always available cause it can be scraped from a 404 page
     render json: results
   end
+
+  def statistics
+    return redirect_to path('/') unless SiteSetting.share_anonymized_statistics?
+    render json: About.fetch_cached_stats
+  end
 end

config/locales/server.en.yml

@@ -1395,6 +1395,8 @@ en:
 
     native_app_install_banner: "Asks recurring visitors to install Discourse native app."
 
+    share_anonymized_statistics: "Share anonymized usage statistics."
+
     max_prints_per_hour_per_user: "Maximum number of /print page impressions (set to 0 to disable)"
 
     full_name_required: "Full name is a required field of a user's profile."

config/routes.rb

@@ -54,6 +54,7 @@ Discourse::Application.routes.draw do
   end
 
   get "site/basic-info" => 'site#basic_info'
+  get "site/statistics" => 'site#statistics'
 
   get "site_customizations/:key" => "site_customizations#show"
 

config/site_settings.yml

@@ -1308,6 +1308,8 @@ uncategorized:
 
   native_app_install_banner: false
 
+  share_anonymized_statistics: true
+
 
 user_preferences:
   default_email_digest_frequency:

spec/controllers/site_controller_spec.rb

@@ -24,4 +24,38 @@ describe SiteController do
       expect(json["mobile_logo_url"]).to eq("https://a.a/a.png")
     end
   end
+
+  describe '.statistics' do
+
+    it 'is visible for sites requiring login' do
+      SiteSetting.login_required = true
+      SiteSetting.share_anonymized_statistics = true
+
+      xhr :get, :statistics
+      json = JSON.parse(response.body)
+
+      expect(response).to be_success
+      expect(json["topic_count"]).to be_present
+      expect(json["post_count"]).to be_present
+      expect(json["user_count"]).to be_present
+      expect(json["topics_7_days"]).to be_present
+      expect(json["topics_30_days"]).to be_present
+      expect(json["posts_7_days"]).to be_present
+      expect(json["posts_30_days"]).to be_present
+      expect(json["users_7_days"]).to be_present
+      expect(json["users_30_days"]).to be_present
+      expect(json["active_users_7_days"]).to be_present
+      expect(json["active_users_30_days"]).to be_present
+      expect(json["like_count"]).to be_present
+      expect(json["likes_7_days"]).to be_present
+      expect(json["likes_30_days"]).to be_present
+    end
+
+    it 'is not visible if site setting share_anonymized_statistics is disabled' do
+      SiteSetting.share_anonymized_statistics = false
+
+      xhr :get, :statistics
+      expect(response).to redirect_to '/'
+    end
+  end
 end