[SIEM] Adds ability to infer the newsfeed.enabled setting

src/plugins/newsfeed/public/index.ts

@@ -18,7 +18,9 @@
  */
 
 import { PluginInitializerContext } from 'src/core/public';
-import { NewsfeedPublicPlugin } from './plugin';
+import { Setup, Start, NewsfeedPublicPlugin } from './plugin';
+
+export { Setup, Start };
 
 export function plugin(initializerContext: PluginInitializerContext) {
   return new NewsfeedPublicPlugin(initializerContext);

src/plugins/newsfeed/public/plugin.tsx

@@ -27,8 +27,8 @@ import { FetchResult, NewsfeedPluginInjectedConfig } from '../types';
 import { NewsfeedNavButton, NewsfeedApiFetchResult } from './components/newsfeed_header_nav_button';
 import { getApi } from './lib/api';
 
-export type Setup = void;
-export type Start = void;
+export type Setup = object;
+export type Start = object;
 
 export class NewsfeedPublicPlugin implements Plugin<Setup, Start> {
   private readonly kibanaVersion: string;
@@ -38,14 +38,18 @@ export class NewsfeedPublicPlugin implements Plugin<Setup, Start> {
     this.kibanaVersion = initializerContext.env.packageInfo.version;
   }
 
-  public setup(core: CoreSetup): Setup {}
+  public setup(core: CoreSetup): Setup {
+    return {};
+  }
 
   public start(core: CoreStart): Start {
     const api$ = this.fetchNewsfeed(core);
     core.chrome.navControls.registerRight({
       order: 1000,
       mount: target => this.mount(api$, target),
     });
+
+    return {};
   }
 
   public stop() {

x-pack/legacy/plugins/siem/public/components/news_feed/index.tsx

@@ -8,18 +8,22 @@ import React, { useEffect, useState } from 'react';
 import chrome from 'ui/chrome';
 
 import { fetchNews, getNewsFeedUrl, getNewsItemsFromApiResponse } from './helpers';
-import { useUiSetting$ } from '../../lib/kibana';
+import { useKibana, useUiSetting$ } from '../../lib/kibana';
 import { NewsFeed } from './news_feed';
 import { NewsItem } from './types';
 
 export const StatefulNewsFeed = React.memo<{
   enableNewsFeedSetting: string;
   newsFeedSetting: string;
 }>(({ enableNewsFeedSetting, newsFeedSetting }) => {
+  const kibanaNewsfeedEnabled = useKibana().services.newsfeed;
   const [enableNewsFeed] = useUiSetting$<boolean>(enableNewsFeedSetting);
   const [newsFeedUrlSetting] = useUiSetting$<string>(newsFeedSetting);
   const [news, setNews] = useState<NewsItem[] | null>(null);
 
+  // respect kibana's global newsfeed.enabled setting
+  const newsfeedEnabled = kibanaNewsfeedEnabled && enableNewsFeed;
+
   const newsFeedUrl = getNewsFeedUrl({
     newsFeedUrlSetting,
     getKibanaVersion: chrome.getKibanaVersion,
@@ -42,16 +46,16 @@ export const StatefulNewsFeed = React.memo<{
       }
     };
 
-    if (enableNewsFeed) {
+    if (newsfeedEnabled) {
       fetchData();
     }
 
     return () => {
       canceled = true;
     };
-  }, [enableNewsFeed, newsFeedUrl]);
+  }, [newsfeedEnabled, newsFeedUrl]);
 
-  return <>{enableNewsFeed ? <NewsFeed news={news} /> : null}</>;
+  return <>{newsfeedEnabled ? <NewsFeed news={news} /> : null}</>;
 });
 
 StatefulNewsFeed.displayName = 'StatefulNewsFeed';

x-pack/legacy/plugins/siem/public/plugin.tsx

@@ -14,6 +14,7 @@ import {
 import { HomePublicPluginSetup } from '../../../../../src/plugins/home/public';
 import { DataPublicPluginStart } from '../../../../../src/plugins/data/public';
 import { IEmbeddableStart } from '../../../../../src/plugins/embeddable/public';
+import { Start as NewsfeedStart } from '../../../../../src/plugins/newsfeed/public';
 import { Start as InspectorStart } from '../../../../../src/plugins/inspector/public';
 import { IUiActionsStart } from '../../../../../src/plugins/ui_actions/public';
 import { UsageCollectionSetup } from '../../../../../src/plugins/usage_collection/public';
@@ -29,6 +30,7 @@ export interface StartPlugins {
   data: DataPublicPluginStart;
   embeddable: IEmbeddableStart;
   inspector: InspectorStart;
+  newsfeed?: NewsfeedStart;
   uiActions: IUiActionsStart;
 }
 export type StartServices = CoreStart & StartPlugins;