Extend Flipper commands to support server add-on messaging

Reviewed By: mweststrate

Differential Revision: D34046466

fbshipit-source-id: 9acc172c1805ec724b8709999bacf9e899c39e6b

desktop/flipper-server-core/src/plugins/PluginManager.tsx

@@ -15,6 +15,7 @@ import {default as axios} from 'axios';
 import {
   BundledPluginDetails,
   DownloadablePluginDetails,
+  ExecuteMessage,
   InstalledPluginDetails,
 } from 'flipper-common';
 import {getStaticPath} from '../utils/pathUtils';
@@ -43,6 +44,9 @@ const getTempDirName = promisify(tmp.dir) as (
   options?: tmp.DirOptions,
 ) => Promise<string>;
 
+const isExecuteMessage = (message: object): message is ExecuteMessage =>
+  (message as ExecuteMessage).method === 'execute';
+
 export class PluginManager {
   private readonly serverAddOns = new Map<string, ServerAddOn>();
 
@@ -155,6 +159,17 @@ export class PluginManager {
     }
   }
 
+  getServerAddOnForMessage(message: object) {
+    if (!isExecuteMessage(message)) {
+      throw new Error(
+        `PluginManager.getServerAddOnForMessage supports only "execute" messages. Received ${JSON.stringify(
+          message,
+        )}`,
+      );
+    }
+    return this.serverAddOns.get(message.params.api);
+  }
+
   async startServerAddOn(pluginName: string, owner: string) {
     console.debug('PluginManager.startServerAddOn', pluginName);
     const existingServerAddOn = this.serverAddOns.get(pluginName);