Hide google search when the instance is private

app/assets/javascripts/discourse/controllers/search-help.js.es6

@@ -3,5 +3,9 @@ import ModalFunctionality from 'discourse/mixins/modal-functionality';
 import DiscourseController from 'discourse/controllers/controller';
 
 export default DiscourseController.extend(ModalFunctionality, {
-  needs: ['modal']
+  needs: ['modal'],
+
+  showGoogleSearch: function() {
+    return !Discourse.SiteSettings.login_required;
+  }.property()
 });

app/assets/javascripts/discourse/templates/modal/search_help.hbs

@@ -1,3 +1,6 @@
 <div id="search-help" class="modal-body">
   {{{model}}}
+  {{#if showGoogleSearch}}
+    {{{i18n google_search}}}
+  {{/if}}
 </div>

config/locales/client.en.yml

@@ -2288,3 +2288,13 @@ en:
         reader:
           name: Reader
           description: Read every post in a topic with more than 100 posts
+
+    google_search: |
+      <h2>Search with Google</h2>
+      <p>
+        <form action='//google.com/search' id='google-search' onsubmit="document.getElementById('google-query').value = 'site:' + window.location.host + ' ' + document.getElementById('user-query').value; return true;">
+          <input type="text" id='user-query' value="">
+          <input type='hidden' id='google-query' name="q">
+          <button class="btn btn-primary">Google</button>
+        </form>
+      </p>

config/locales/server.en.yml

@@ -2152,11 +2152,3 @@ en:
       <p>
         <code>rainbows category:parks status:open order:latest</code> will search for topics containing the word "rainbows" in the category "parks" that are not closed or archived, ordered by date of last post.
       </p>
-      <h2>Search with Google</h2>
-      <p>
-        <form action='//google.com/search' id='google-search' onsubmit="document.getElementById('google-query').value = 'site:' + window.location.host + ' ' + document.getElementById('user-query').value; return true;">
-          <input type="text" id='user-query' value="">
-          <input type='hidden' id='google-query' name="q">
-          <button class="btn btn-primary">Google</button>
-        </form>
-      </p>