Display private RSS feed url in general settings (#888)

refs https://github.com/TryGhost/Ghost/issues/9001

- show private feed url if private blogging is enabled
- added a `.avoid-break-out` CSS utility class to prevent layout issues caused by non-breaking text such as long links

ghost/admin/app/controllers/settings/general.js

@@ -48,6 +48,13 @@ export default Controller.extend({
         }
     }),
 
+    privateRSSUrl: computed('config.blogUrl', 'model.publicHash', function () {
+        let blogUrl = this.get('config.blogUrl');
+        let publicHash = this.get('model.publicHash');
+
+        return `${blogUrl}/${publicHash}/rss`;
+    }),
+
     _deleteTheme() {
         let theme = this.get('store').peekRecord('theme', this.get('themeToDelete').name);
 

ghost/admin/app/models/setting.js

@@ -22,6 +22,7 @@ export default Model.extend(ValidationEngine, {
     labs: attr('string'),
     navigation: attr('navigation-settings'),
     isPrivate: attr('boolean'),
+    publicHash: attr('string'),
     password: attr('string'),
     slack: attr('slack-settings'),
     amp: attr('boolean'),

ghost/admin/app/styles/patterns/global.css

@@ -436,6 +436,16 @@ img {
     display: flex;
 }
 
+.avoid-break-out {
+    overflow-wrap: break-word;
+    word-wrap: break-word;
+
+    word-break: break-all;
+    word-break: break-word;
+
+    hyphens: auto;
+}
+
 
 /* Animations
 /* ---------------------------------------------------------- */

ghost/admin/app/templates/settings/general.hbs

@@ -203,15 +203,26 @@
         <div class="gh-setting">
             <div class="gh-setting-content">
                 <div class="gh-setting-title">Make this site private</div>
-                <div class="gh-setting-desc">Enable protection with simple shared password, All search engine optimization and social features will be disabled.</div>
-                {{#if model.isPrivate}}
-                <div class="gh-setting-content-extended">
-                    {{#gh-form-group errors=model.errors hasValidated=model.hasValidated property="password"}}
-                        {{gh-input model.password name="general[password]" type="text" focusOut=(action "validate" "password" target=model) update=(action (mut model.password)) data-test-password-input=true}}
-                        {{gh-error-message errors=model.errors property="password" data-test-password-error=true}}
-                        <p>Set the password for this site</p>
-                    {{/gh-form-group}}
+                <div class="gh-setting-desc">
+                    Enable protection with simple shared password, All search engine optimization and social features will be disabled.
+
+                    {{#if model.isPrivate}}
+                        <span class="avoid-break-out">
+                            <br><br>
+                            A private RSS feed is available at
+                            <a href="{{privateRSSUrl}}" target="_blank" rel="noopener">{{privateRSSUrl}}</a>
+                        </span>
+                    {{/if}}
                 </div>
+
+                {{#if model.isPrivate}}
+                    <div class="gh-setting-content-extended">
+                        {{#gh-form-group errors=model.errors hasValidated=model.hasValidated property="password"}}
+                            {{gh-input model.password name="general[password]" type="text" focusOut=(action "validate" "password" target=model) update=(action (mut model.password)) data-test-password-input=true}}
+                            {{gh-error-message errors=model.errors property="password" data-test-password-error=true}}
+                            <p>Set the password for this site</p>
+                        {{/gh-form-group}}
+                    </div>
                 {{/if}}
             </div>
             <div class="gh-setting-action">