Adding UUIDs to MessageRequests and MessageResponses

change/@microsoft-teams-js-acd75970-b390-4cfe-b488-4bd6f51f723e.json

@@ -0,0 +1,7 @@
+{
+  "type": "minor",
+  "comment": "Added `uuid` parameter to `MessageRequest` and `MessageResponse` interfaces",
+  "packageName": "@microsoft/teams-js",
+  "email": "jadahiya@microsoft.com",
+  "dependentChangeType": "patch"
+}

packages/teams-js/src/internal/messageObjects.ts

@@ -1,22 +1,61 @@
+import { UUID as MessageUUID } from './uuidObject';
+
+/**
+ * @internal
+ * Limited to Microsoft-internal use
+ *
+ * MessageIDs represent the legacy number id used for processing MessageRequests and MessageResponses
+ */
+export type MessageID = number;
+
 /**
  * @internal
  * Limited to Microsoft-internal use
  */
 export interface MessageRequest {
-  id?: number;
+  id?: MessageID;
+  uuid?: MessageUUID;
   func: string;
   timestamp?: number;
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   args?: any[];
   apiVersionTag?: string;
+  isPartialResponse?: boolean;
+}
+
+/**
+ * @internal
+ * Limited to Microsoft-internal use
+ */
+export interface SerializedMessageRequest {
+  id?: MessageID;
+  uuidAsString?: string;
+  func: string;
+  timestamp?: number;
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  args?: any[];
+  apiVersionTag?: string;
+}
+
+/**
+ * @internal
+ * Limited to Microsoft-internal use
+ */
+export interface SerializedMessageResponse {
+  id: MessageID;
+  uuidAsString?: string;
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  args?: any[];
+  isPartialResponse?: boolean; // If the message is partial, then there will be more future responses for the given message ID.
 }
 
 /**
  * @internal
  * Limited to Microsoft-internal use
  */
 export interface MessageResponse {
-  id: number;
+  id: MessageID;
+  uuid?: MessageUUID;
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   args?: any[];
   isPartialResponse?: boolean; // If the message is partial, then there will be more future responses for the given message ID.
@@ -34,6 +73,45 @@ export interface MessageResponse {
  * merged. However, it's a journey.
  */
 export interface MessageRequestWithRequiredProperties extends MessageRequest {
-  id: number;
+  id: MessageID;
+  uuid: MessageUUID;
   timestamp: number;
 }
+
+export const serializeMessageRequest = (message: MessageRequest): SerializedMessageRequest => {
+  const { uuid, ...restOfMessage } = message;
+  const uuidAsString = uuid?.toString();
+  const request: SerializedMessageRequest = {
+    ...restOfMessage,
+    uuidAsString: uuidAsString,
+  };
+  return request;
+};
+
+export const deserializeMessageRequest = (message: SerializedMessageRequest): MessageRequest => {
+  const { uuidAsString, ...restOfMessage } = message;
+  const request: MessageRequest = {
+    ...restOfMessage,
+    uuid: uuidAsString ? new MessageUUID(uuidAsString) : undefined,
+  };
+  return request;
+};
+
+export const deserializeMessageResponse = (serializedResponse: SerializedMessageResponse): MessageResponse => {
+  const { uuidAsString, ...restOfResponse } = serializedResponse;
+  const messageResponse: MessageResponse = {
+    ...restOfResponse,
+    uuid: uuidAsString ? new MessageUUID(uuidAsString) : undefined,
+  };
+  return messageResponse;
+};
+
+export const serializeMessageResponse = (response: MessageResponse): SerializedMessageResponse => {
+  const { uuid, ...restOfResponse } = response;
+  const uuidAsString = uuid?.toString();
+  const messageResponse: SerializedMessageResponse = {
+    ...restOfResponse,
+    uuidAsString: uuidAsString,
+  };
+  return messageResponse;
+};

packages/teams-js/src/internal/uuidObject.ts

@@ -0,0 +1,17 @@
+import { generateGUID, validateUuid } from './utils';
+
+/**
+ * @internal
+ * Limited to Microsoft-internal use
+ *
+ * UUID object
+ */
+export class UUID {
+  public constructor(private readonly uuid: string = generateGUID()) {
+    validateUuid(uuid);
+  }
+
+  public toString(): string {
+    return this.uuid;
+  }
+}

packages/teams-js/test/internal/communication.spec.ts

@@ -1,10 +1,12 @@
 import * as communication from '../../src/internal/communication';
 import { GlobalVars } from '../../src/internal/globalVars';
+import { MessageRequest } from '../../src/internal/messageObjects';
 import { NestedAppAuthMessageEventNames, NestedAppAuthRequest } from '../../src/internal/nestedAppAuthUtils';
 import { ApiName, ApiVersionNumber, getApiVersionTag } from '../../src/internal/telemetry';
+import { UUID } from '../../src/internal/uuidObject';
 import { FrameContexts } from '../../src/public';
 import { app } from '../../src/public/app';
-import { MessageRequest, Utils } from '../utils';
+import { Utils } from '../utils';
 
 const testApiVersion = getApiVersionTag(ApiVersionNumber.V_1, 'mockedApiName' as ApiName);
 
@@ -1609,4 +1611,142 @@ describe('Testing communication', () => {
       });
     });
   });
+  describe('UUID tests', () => {
+    let utils: Utils = new Utils();
+
+    beforeEach(() => {
+      // Set a mock window for testing
+      utils = new Utils();
+      utils.mockWindow.parent = undefined;
+      app._initialize(utils.mockWindow);
+      communication.Communication.parentWindow = undefined;
+      GlobalVars.isFramelessWindow = false;
+    });
+    afterEach(() => {
+      communication.uninitializeCommunication();
+    });
+    afterAll(() => {
+      GlobalVars.isFramelessWindow = false;
+    });
+    describe('postMessage', () => {
+      it('should delete callback correctly with uuid', async () => {
+        app._initialize(utils.mockWindow);
+        communication.initializeCommunication(undefined, testApiVersion);
+        let callbackWasCalled = 0;
+        const initializeMessage = utils.findInitializeMessageOrThrow();
+        let message = utils.findMessageByFunc('initialize');
+
+        if (message) {
+          expect(message.id).toBe(0);
+        }
+
+        await utils.respondToMessage(initializeMessage);
+
+        communication.sendMessageToParent(testApiVersion, 'testAction', () => {
+          callbackWasCalled++;
+        });
+        message = utils.findMessageByFunc('testAction');
+
+        if (message) {
+          expect(message.id).toBe(1);
+        }
+
+        await utils.respondToMessage({ id: message?.id, uuid: message?.uuid, func: 'testAction' }, false);
+
+        expect(callbackWasCalled).toBe(1);
+
+        //Call respondToMessageAgain, this should not call the callback since it should be deleted and callbackWasCalled should be still 1
+        await utils.respondToMessage({ id: message?.id, uuid: message?.uuid, func: 'testAction' }, false);
+
+        expect(callbackWasCalled).toBe(1);
+
+        communication.sendMessageToParent(testApiVersion, 'testAction2', () => {
+          callbackWasCalled++;
+        });
+
+        message = utils.findMessageByFunc('testAction2');
+
+        if (message) {
+          expect(message.id).toBe(2);
+        }
+
+        await utils.respondToMessage({ id: message?.id, uuid: message?.uuid, func: 'testAction2' }, false);
+        expect(callbackWasCalled).toBe(2);
+      });
+
+      it('should delete callback correctly with number id only', async () => {
+        app._initialize(utils.mockWindow);
+        communication.initializeCommunication(undefined, testApiVersion);
+        let callbackWasCalled = 0;
+        const initializeMessage = utils.findInitializeMessageOrThrow();
+        let message = utils.findMessageByFunc('initialize');
+
+        if (message) {
+          expect(message.id).toBe(0);
+        }
+
+        await utils.respondToMessage(initializeMessage);
+
+        communication.sendMessageToParent(testApiVersion, 'testAction', () => {
+          callbackWasCalled++;
+        });
+        message = utils.findMessageByFunc('testAction');
+
+        if (message) {
+          expect(message.id).toBe(1);
+        }
+
+        await utils.respondToMessage({ id: message?.id, func: 'testAction' }, false);
+
+        expect(callbackWasCalled).toBe(1);
+
+        //Call respondToMessageAgain, this should not call the callback since it should be deleted and callbackWasCalled should be still 1
+        await utils.respondToMessage({ id: message?.id, func: 'testAction' }, false);
+
+        expect(callbackWasCalled).toBe(1);
+
+        communication.sendMessageToParent(testApiVersion, 'testAction2', () => {
+          callbackWasCalled++;
+        });
+
+        message = utils.findMessageByFunc('testAction2');
+
+        if (message) {
+          expect(message.id).toBe(2);
+        }
+
+        await utils.respondToMessage({ id: message?.id, func: 'testAction2' }, false);
+        expect(callbackWasCalled).toBe(2);
+      });
+
+      it('should not call callback with invalid uuid', async () => {
+        app._initialize(utils.mockWindow);
+        communication.initializeCommunication(undefined, testApiVersion);
+        let callbackWasCalled = 0;
+        const initializeMessage = utils.findInitializeMessageOrThrow();
+
+        await utils.respondToMessage(initializeMessage);
+
+        communication.sendMessageToParent(testApiVersion, 'testAction', () => {
+          callbackWasCalled++;
+        });
+
+        const message = utils.findMessageByFunc('testAction');
+
+        if (message) {
+          expect(message.id).toBe(1);
+        }
+
+        await utils.respondToMessage({ id: message?.id, uuid: new UUID(), func: 'testAction' }, false);
+
+        //Since uuid is set but is not the same value as the message request, message should not process and message should not call callback
+        expect(callbackWasCalled).toBe(0);
+
+        //Respond with correct set of message uuid and now callback should be called
+        await utils.respondToMessage({ id: message?.id, uuid: message?.uuid, func: 'testAction' }, false);
+
+        expect(callbackWasCalled).toBe(1);
+      });
+    });
+  });
 });