🐛 [firebase_messaging] Always getting cloud_firestore/permission-denied with onBackgroundMessage isolate

[ASE55471]

Bug report

Describe the bug
I am tring to listening data changes from firestore in onBackgroundMessage. But when isolate start from terminated state, It always throw:

[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: [cloud_firestore/permission-denied] The caller does n
ot have permission to execute the specified operation.
E/flutter (19800): #0      EventChannelExtension.receiveGuardedBroadcastStream (package:_flutterfire_internals/src/exception.dart:67:43)        
E/flutter (19800): #1      MethodChannelQuery.snapshots.<anonymous closure> (package:cloud_firestore_platform_interface/src/method_channel/metho
d_channel_query.dart:154:18)

But if i listening in background state, it works fine.

Steps to reproduce

Steps to reproduce the behavior:

1. Put a firestore data listener in onBackgroundMessage
2. Terminate application
3. Send fcm to device
4. Isolate start from Terminated state, And listener always get permission-denied

Expected behavior

I should be able to successfully getting data from firestore, Because i run exactly same code in both background and Terminated state, But it only works in background state.

Sample project

@pragma('vm:entry-point')
Future<void> firebaseMessagingBackgroundHandler(
    RemoteMessage remoteMessage) async {
  await Firebase.initializeApp(
    options: DefaultFirebaseOptions.currentPlatform,
  );
  FirebaseFirestore.instance.collection("user").doc(id).snapshots()
}

---

Additional context

Add any other context about the problem here.

---

Flutter doctor

Run flutter doctor and paste the output below:

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[√] Flutter (Channel stable, 3.3.7, on Microsoft Windows [Version 10.0.19045.2728], locale zh-TW)
[√] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
[√] Chrome - develop for the web
[X] Visual Studio - develop for Windows
    X Visual Studio not installed; this is necessary for Windows development.
      Download at https://visualstudio.microsoft.com/downloads/.
      Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2021.3)
[√] VS Code (version 1.76.2)
[√] Connected device (5 available)
[√] HTTP Host Availability

---

Flutter dependencies

Run flutter pub deps -- --style=compact and paste the output below:

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 firebase_core: ^2.4.1
 firebase_auth: ^4.2.9
 cloud_firestore: ^4.3.1
 firebase_messaging: ^14.2.1

---

[darshankawar]

@ASE55471
Can you provide your firestore rules here ?

[cloud_firestore/permission-denied] The caller does n ot have permission to execute the specified operation. usually indicates rules are restricted or you don't have proper permission and make sure the permission you have specified in the console is correct.

[ASE55471]

@darshankawar I test with emulator, And I roll back rules to allow all, Weird thing is the excaption throwed, But emulator showed it's allow. But if listening in background state, it works fine, This issue only happend in terminated state.

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if true;
    }
  }
}

[ASE55471]

It's very similar to this Performing FirebaseFirestore queries from multiple Isolates

[ASE55471]

I found the issue, I didn't call .useAuthEmulator in isolate