Added new (hidden) UserManager API to get all users, including pre-created ones.

Bug: 140750212
Test: manual verification

Merged-In: Iaef9db6216a7b18bf6f1f3e19f4a7428ec99f1da
Change-Id: Iaef9db6216a7b18bf6f1f3e19f4a7428ec99f1da
(cherry picked from commit 09a7f2df68192b9aa77577de14a6a7018e992caf)

3 files changed, 26 insertions, 20 deletions

diff --git a/core/java/android/os/IUserManager.aidl b/core/java/android/os/IUserManager.aidl
index ed76077e5c79..c30491a3965c 100644
--- a/core/java/android/os/IUserManager.aidl
+++ b/core/java/android/os/IUserManager.aidl
@@ -54,7 +54,7 @@ interface IUserManager {
     void setUserIcon(int userHandle, in Bitmap icon);
     ParcelFileDescriptor getUserIcon(int userHandle);
     UserInfo getPrimaryUser();
-    List<UserInfo> getUsers(boolean excludeDying);
+    List<UserInfo> getUsers(boolean excludePartial, boolean excludeDying, boolean excludePreCreated);
     List<UserInfo> getProfiles(int userHandle, boolean enabledOnly);
     int[] getProfileIds(int userId, boolean enabledOnly);
     boolean canAddMoreManagedProfiles(int userHandle, boolean allowedToRemoveOne);
diff --git a/core/java/android/os/UserManager.java b/core/java/android/os/UserManager.java
index eb1927ebd83a..af9e592f9036 100644
--- a/core/java/android/os/UserManager.java
+++ b/core/java/android/os/UserManager.java
@@ -2379,15 +2379,26 @@ public class UserManager {
     /**
      * Returns information for all users on this device, including ones marked for deletion.
      * To retrieve only users that are alive, use {@link #getUsers(boolean)}.
-     * <p>
-     * Requires {@link android.Manifest.permission#MANAGE_USERS} permission.
+     *
      * @return the list of users that exist on the device.
      * @hide
      */
     @UnsupportedAppUsage
+    @RequiresPermission(android.Manifest.permission.MANAGE_USERS)
     public List<UserInfo> getUsers() {
+        return getUsers(/* excludeDying= */ false);
+    }
+
+    /**
+     * Returns information for all users on this device, based on the filtering parameters.
+     *
+     * @hide
+     */
+    @RequiresPermission(android.Manifest.permission.MANAGE_USERS)
+    public List<UserInfo> getUsers(boolean excludePartial, boolean excludeDying,
+            boolean excludePreCreated) {
         try {
-            return mService.getUsers(false);
+            return mService.getUsers(excludePartial, excludeDying, excludePreCreated);
         } catch (RemoteException re) {
             throw re.rethrowFromSystemServer();
         }
@@ -2403,16 +2414,12 @@ public class UserManager {
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MANAGE_USERS)
     public long[] getSerialNumbersOfUsers(boolean excludeDying) {
-        try {
-            List<UserInfo> users = mService.getUsers(excludeDying);
-            long[] result = new long[users.size()];
-            for (int i = 0; i < result.length; i++) {
-                result[i] = users.get(i).serialNumber;
-            }
-            return result;
-        } catch (RemoteException re) {
-            throw re.rethrowFromSystemServer();
+        List<UserInfo> users = getUsers(excludeDying);
+        long[] result = new long[users.size()];
+        for (int i = 0; i < result.length; i++) {
+            result[i] = users.get(i).serialNumber;
         }
+        return result;
     }
 
     /**
@@ -2798,11 +2805,8 @@ public class UserManager {
      */
     @UnsupportedAppUsage
     public @NonNull List<UserInfo> getUsers(boolean excludeDying) {
-        try {
-            return mService.getUsers(excludeDying);
-        } catch (RemoteException re) {
-            throw re.rethrowFromSystemServer();
-        }
+        return getUsers(/*excludePartial= */ true, excludeDying,
+                /* excludePreCreated= */ true);
     }
 
     /**
diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index ed60aa54212f..338811efd4ea 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -650,12 +650,12 @@ public class UserManagerService extends IUserManager.Stub {
         return null;
     }
 
-    @Override
     public @NonNull List<UserInfo> getUsers(boolean excludeDying) {
         return getUsers(/*excludePartial= */ true, excludeDying, /* excludePreCreated= */ true);
     }
 
-    private @NonNull List<UserInfo> getUsers(boolean excludePartial, boolean excludeDying,
+    @Override
+    public @NonNull List<UserInfo> getUsers(boolean excludePartial, boolean excludeDying,
             boolean excludePreCreated) {
         checkManageOrCreateUsersPermission("query users");
         synchronized (mUsersLock) {
@@ -2700,6 +2700,8 @@ public class UserManagerService extends IUserManager.Stub {
         Preconditions.checkArgument(!UserInfo.isManagedProfile(flags),
                 "cannot pre-create managed profiles");
 
+        Slog.i(LOG_TAG, "Pre-creating user with flags " + UserInfo.flagsToString(flags));
+
         return createUserInternalUnchecked(/* name= */ null, flags,
                 /* parentId= */ UserHandle.USER_NULL, /* preCreate= */ true,
                 /* disallowedPackages= */ null);