From f09c5381fc261f1c667678510cafdb9e8faf8154 Mon Sep 17 00:00:00 2001
From: Cecilia Avila <44245136+ceciliaavila@users.noreply.github.com>
Date: Wed, 24 Jan 2024 14:43:12 +0000
Subject: [PATCH] fix: [#4582] UserAssignedIdentity(WorkloadIdentity) auth
 fails with 'scope https://api.botframework.com is not valid' (#4607)

* Add scope post-fix in managedIdentityAuthenticator.

* Fix unit test
---
 .../src/auth/managedIdentityAuthenticator.ts                 | 5 +++++
 .../tests/auth/managedIdentityAuthenticator.test.js          | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/libraries/botframework-connector/src/auth/managedIdentityAuthenticator.ts b/libraries/botframework-connector/src/auth/managedIdentityAuthenticator.ts
index ae2ae8df0a..d2ee95b333 100644
--- a/libraries/botframework-connector/src/auth/managedIdentityAuthenticator.ts
+++ b/libraries/botframework-connector/src/auth/managedIdentityAuthenticator.ts
@@ -30,6 +30,11 @@ export class ManagedIdentityAuthenticator {
         ok(resource?.trim(), 'ManagedIdentityAuthenticator.constructor(): missing resource.');
         ok(tokenProviderFactory, 'ManagedIdentityAuthenticator.constructor(): missing tokenProviderFactory.');
 
+        const scopePostfix = '/.default';
+        if (!resource.endsWith(scopePostfix)) {
+            resource = `${resource}${scopePostfix}`;
+        }
+
         this.resource = resource;
         this.tokenProvider = tokenProviderFactory.createAzureServiceTokenProvider(appId);
     }
diff --git a/libraries/botframework-connector/tests/auth/managedIdentityAuthenticator.test.js b/libraries/botframework-connector/tests/auth/managedIdentityAuthenticator.test.js
index 89d39440c2..2236e9c625 100644
--- a/libraries/botframework-connector/tests/auth/managedIdentityAuthenticator.test.js
+++ b/libraries/botframework-connector/tests/auth/managedIdentityAuthenticator.test.js
@@ -6,7 +6,7 @@ const sinon = require('sinon');
 const { JwtTokenProviderFactory, ManagedIdentityAuthenticator } = require('../../lib');
 
 const testAppId = 'foo';
-const testAudience = 'bar';
+const testAudience = 'bar/.default';
 const authResult = {
     token: '123',
     expiresOnTimestamp: 3000,