Merge pull request #602 from murny/ga/piwik-analytics

Add google/matomo analytics

.env_deployment_sample

@@ -8,6 +8,9 @@ SECRET_KEY_BASE=33d83bc35b707a1f70ac9475cdaabd4224fca0d3edc07e0ce6db13515d1c1e3a
 SAML_PRIVATE_KEY=
 SAML_CERTIFICATE=
 ROLLBAR_TOKEN=
+GOOGLE_ANALYTICS_TOKEN=
+MATOMO_URL=
+MATOMO_SITE_ID=
 
 # Postgres environment variables
 PGDATA=/var/lib/postgresql/data/pgdata

app/assets/javascripts/jupiter/analytics.js.erb

@@ -0,0 +1,12 @@
+$(document).on('turbolinks:load', function() {
+  // Google Analytics
+  if (typeof gtag === 'function') {
+    return gtag('config', '<%= Rails.application.secrets.google_analytics_token %>', {
+      'page_path': window.location.pathname
+    });
+  }
+  // Matomo Analytics
+  if (window._paq != null) {
+    return _paq.push(['trackPageView']);
+  }
+});

app/views/application/_analytics.html.erb

@@ -0,0 +1,34 @@
+ <% if Rails.application.secrets.google_analytics_token.present? %>
+  <!-- Google Analytics -->
+  <script async src="https://www.googletagmanager.com/gtag/js?id=<%= Rails.application.secrets.google_analytics_token %>"></script>
+  <script>
+    window.dataLayer = window.dataLayer || [];
+    function gtag(){dataLayer.push(arguments);}
+    gtag('js', new Date());
+  </script>
+  <!-- End Google Analytics -->
+<% end %>
+
+<% if Rails.application.secrets.matomo_url.present? && Rails.application.secrets.matomo_site_id.present? %>
+  <!-- Matomo -->
+  <script type="text/javascript">
+    var _paq = _paq || [];
+    // tracker methods like "setCustomDimension" should be called before "trackPageView"
+    _paq.push(['trackPageView']);
+    _paq.push(['enableLinkTracking']);
+    (function() {
+      var u="//<%= Rails.application.secrets.matomo_url %>/";
+      _paq.push(['setTrackerUrl', u+'piwik.php']);
+      _paq.push(['setSiteId', <%= Rails.application.secrets.matomo_site_id %>]);
+      var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+      g.type='text/javascript'; g.async=true; g.defer=true; g.src=u+'piwik.js'; s.parentNode.insertBefore(g,s);
+    })();
+  </script>
+  <!-- End Matomo Code -->
+
+  <!-- Matomo Image Tracker -->
+  <noscript>
+    <p><img src="//<%= Rails.application.secrets.matomo_url %>/piwik.php?idsite=<%= Rails.application.secrets.matomo_site_id %>&amp;rec=1" style="border:0" alt="" /></p>
+  </noscript>
+  <!-- End Matomo -->
+<% end %>

app/views/layouts/application.html.erb

@@ -22,6 +22,8 @@
     <%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
     <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
 
+    <%= render partial: 'analytics' %>
+
     <%= yield(:head) %>
   </head>
 

config/secrets.yml

@@ -25,6 +25,9 @@ shared:
   ezid_default_shoulder: <%= ENV['EZID_DEFAULT_SHOULDER'] %>
   ezid_user: <%= ENV['EZID_USER'] %>
   ezid_password: <%= ENV['EZID_PASSWORD'] %>
+  google_analytics_token: <%= ENV['GOOGLE_ANALYTICS_TOKEN'] %>
+  matomo_url: <%= ENV['MATOMO_URL'] %>
+  matomo_site_id: <%= ENV['MATOMO_SITE_ID'] %>
 
 development:
   secret_key_base: c0a4bf2c5890d0fa86e1459dd189bc4c5a02f412067b610490885c8c312bf0cea5d988e075761ba7277a8291041c1b2e7cf6c373d4d6f43d4522bc48db76cc1a