From df38221d30f3363b5ad8edfb76a1e63af2f9922b Mon Sep 17 00:00:00 2001
From: Matthew Sedam <matthewsedam@google.com>
Date: Wed, 17 May 2023 18:33:48 +0000
Subject: [PATCH] Properly handle HSUM no-user in the ContextHubService

When the system is in Headless System User Mode (HSUM),
the system runs the UI as user 0. User 0 cannot have
a credential and the device is automatically unlocked.
Any user can change the microphone setting.

Bug: 278961972
Test: Run the MicDisableSettingsTest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:8ff589c9120113b2b61c27accd319cd04cef5980)
Merged-In: I1d24b1cfe2222868670e4b8569229f1ed0ad378b
Change-Id: I1d24b1cfe2222868670e4b8569229f1ed0ad378b
---
 .../location/contexthub/ContextHubService.java   | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/services/core/java/com/android/server/location/contexthub/ContextHubService.java b/services/core/java/com/android/server/location/contexthub/ContextHubService.java
index 5f783742bd266..93c66a19c89d1 100644
--- a/services/core/java/com/android/server/location/contexthub/ContextHubService.java
+++ b/services/core/java/com/android/server/location/contexthub/ContextHubService.java
@@ -52,6 +52,7 @@ import android.os.ResultReceiver;
 import android.os.ShellCallback;
 import android.os.SystemClock;
 import android.os.UserHandle;
+import android.os.UserManager;
 import android.provider.Settings;
 import android.util.Log;
 import android.util.Pair;
@@ -169,6 +170,8 @@ public class ContextHubService extends IContextHubService.Stub {
 
     private SensorPrivacyManagerInternal mSensorPrivacyManagerInternal;
 
+    private UserManager mUserManager = null;
+
     private final Map<Integer, AtomicLong> mLastRestartTimestampMap = new HashMap<>();
 
     /**
@@ -491,6 +494,14 @@ public class ContextHubService extends IContextHubService.Stub {
             return;
         }
 
+        if (mUserManager == null) {
+            mUserManager = mContext.getSystemService(UserManager.class);
+            if (mUserManager == null) {
+                Log.e(TAG, "Unable to get the UserManager service");
+                return;
+            }
+        }
+
         sendMicrophoneDisableSettingUpdateForCurrentUser();
         if (mSensorPrivacyManagerInternal == null) {
             Log.e(TAG, "Unable to add a sensor privacy listener for all users");
@@ -499,8 +510,9 @@ public class ContextHubService extends IContextHubService.Stub {
 
         mSensorPrivacyManagerInternal.addSensorPrivacyListenerForAllUsers(
                 SensorPrivacyManager.Sensors.MICROPHONE, (userId, enabled) -> {
-                    if (userId == getCurrentUserId()) {
-                        Log.d(TAG, "User: " + userId + "mic privacy: " + enabled);
+                    // If we are in HSUM mode, any user can change the microphone setting
+                    if (mUserManager.isHeadlessSystemUserMode() || userId == getCurrentUserId()) {
+                        Log.d(TAG, "User: " + userId + " mic privacy: " + enabled);
                         sendMicrophoneDisableSettingUpdate(enabled);
                     }
                 });