Prevent crash in AccountManager after profile removal.

When user profile is removed AccountManagerService.purgeUserData may be
called after a delay. Until it happens other methods may try to access
database for a removed profile which causes a crash.

Bug: 281980345
Test: N/A
Merged-In: Idb9840a5b9f9fdc84516149066cbb2a945c083a7
Change-Id: Ia98887774e16a70b472c881dfe1b4b5bddabb8e8

services/core/java/com/android/server/accounts/AccountManagerService.java

@@ -67,6 +67,7 @@ import android.content.pm.Signature;
 import android.content.pm.SigningDetails.CertCapabilities;
 import android.content.pm.UserInfo;
 import android.database.Cursor;
+import android.database.sqlite.SQLiteCantOpenDatabaseException;
 import android.database.sqlite.SQLiteFullException;
 import android.database.sqlite.SQLiteStatement;
 import android.os.Binder;
@@ -1383,7 +1384,13 @@ public class AccountManagerService
     private void purgeOldGrants(UserAccounts accounts) {
         synchronized (accounts.dbLock) {
             synchronized (accounts.cacheLock) {
-                List<Integer> uids = accounts.accountsDb.findAllUidGrants();
+                List<Integer> uids;
+                try {
+                    uids = accounts.accountsDb.findAllUidGrants();
+                } catch (SQLiteCantOpenDatabaseException e) {
+                    Log.w(TAG, "Could not delete grants for user = " + accounts.userId);
+                    return;
+                }
                 for (int uid : uids) {
                     final boolean packageExists = mPackageManager.getPackagesForUid(uid) != null;
                     if (packageExists) {
@@ -1409,7 +1416,13 @@ public class AccountManagerService
                     mPackageManager.getPackageUidAsUser(packageName, accounts.userId);
                 } catch (NameNotFoundException e) {
                     // package does not exist - remove visibility values
-                    accounts.accountsDb.deleteAccountVisibilityForPackage(packageName);
+                    try {
+                        accounts.accountsDb.deleteAccountVisibilityForPackage(packageName);
+                    } catch (SQLiteCantOpenDatabaseException sqlException) {
+                        Log.w(TAG, "Could not delete account visibility for user = "
+                                + accounts.userId, sqlException);
+                        continue;
+                    }
                     synchronized (accounts.dbLock) {
                         synchronized (accounts.cacheLock) {
                             for (Account account : accounts.visibilityCache.keySet()) {