Use FLAG_UPDATED_SYSTEM_APP

Use FLAG_UPDATED_SYSTEM_APP find if an app is updated system app
instead of MATCH_FACTORY_ONLY

Bug: 148308979
Test: Unit test for CarrierAppUtils and system test to
      verify fi is not getting uninstalled
Change-Id: I1991e98bb1edb7d0628a7011df7488fbf5de3579

telephony/common/com/android/internal/telephony/CarrierAppUtils.java

@@ -123,6 +123,14 @@ public final class CarrierAppUtils {
         return userContext.getContentResolver();
     }
 
+    private static boolean isUpdatedSystemApp(ApplicationInfo ai) {
+        if ((ai.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0) {
+            return true;
+        }
+
+        return false;
+    }
+
     /**
      * Disable carrier apps until they are privileged
      * Must be public b/c framework unit tests can't access package-private methods.
@@ -137,7 +145,7 @@ public final class CarrierAppUtils {
         PackageManager packageManager = context.getPackageManager();
         PermissionManager permissionManager =
                 (PermissionManager) context.getSystemService(Context.PERMISSION_SERVICE);
-        List<ApplicationInfo> candidates = getDefaultNotUpdatedCarrierAppCandidatesHelper(
+        List<ApplicationInfo> candidates = getDefaultCarrierAppCandidatesHelper(
                 userId, systemCarrierAppsDisabledUntilUsed, context);
         if (candidates == null || candidates.isEmpty()) {
             return;
@@ -176,7 +184,7 @@ public final class CarrierAppUtils {
                 if (hasPrivileges) {
                     // Only update enabled state for the app on /system. Once it has been
                     // updated we shouldn't touch it.
-                    if (enabledSetting
+                    if (!isUpdatedSystemApp(ai) && enabledSetting
                             == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
                             || enabledSetting
                             == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED
@@ -230,7 +238,7 @@ public final class CarrierAppUtils {
                 } else {  // No carrier privileges
                     // Only update enabled state for the app on /system. Once it has been
                     // updated we shouldn't touch it.
-                    if (enabledSetting
+                    if (!isUpdatedSystemApp(ai) && enabledSetting
                             == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
                             && (ai.flags & ApplicationInfo.FLAG_INSTALLED) != 0) {
                         Log.i(TAG, "Update state(" + packageName
@@ -361,29 +369,6 @@ public final class CarrierAppUtils {
         return apps;
     }
 
-    private static List<ApplicationInfo> getDefaultNotUpdatedCarrierAppCandidatesHelper(
-            int userId, ArraySet<String> systemCarrierAppsDisabledUntilUsed, Context context) {
-        if (systemCarrierAppsDisabledUntilUsed == null) {
-            return null;
-        }
-
-        int size = systemCarrierAppsDisabledUntilUsed.size();
-        if (size == 0) {
-            return null;
-        }
-
-        List<ApplicationInfo> apps = new ArrayList<>(size);
-        for (int i = 0; i < size; i++) {
-            String packageName = systemCarrierAppsDisabledUntilUsed.valueAt(i);
-            ApplicationInfo ai =
-                    getApplicationInfoIfNotUpdatedSystemApp(userId, packageName, context);
-            if (ai != null) {
-                apps.add(ai);
-            }
-        }
-        return apps;
-    }
-
     private static Map<String, List<ApplicationInfo>> getDefaultCarrierAssociatedAppsHelper(
             int userId, ArrayMap<String, List<String>> systemCarrierAssociatedAppsDisabledUntilUsed,
             Context context) {
@@ -395,11 +380,11 @@ public final class CarrierAppUtils {
                     systemCarrierAssociatedAppsDisabledUntilUsed.valueAt(i);
             for (int j = 0; j < associatedAppPackages.size(); j++) {
                 ApplicationInfo ai =
-                        getApplicationInfoIfNotUpdatedSystemApp(
+                        getApplicationInfoIfSystemApp(
                                 userId, associatedAppPackages.get(j), context);
                 // Only update enabled state for the app on /system. Once it has been updated we
                 // shouldn't touch it.
-                if (ai != null) {
+                if (ai != null && !isUpdatedSystemApp(ai)) {
                     List<ApplicationInfo> appList = associatedApps.get(carrierAppPackage);
                     if (appList == null) {
                         appList = new ArrayList<>();
@@ -412,26 +397,6 @@ public final class CarrierAppUtils {
         return associatedApps;
     }
 
-    @Nullable
-    private static ApplicationInfo getApplicationInfoIfNotUpdatedSystemApp(
-            int userId, String packageName, Context context) {
-        try {
-            ApplicationInfo ai = context.createContextAsUser(UserHandle.of(userId), 0)
-                    .getPackageManager()
-                    .getApplicationInfo(packageName,
-                            PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS
-                                    | PackageManager.MATCH_HIDDEN_UNTIL_INSTALLED_COMPONENTS
-                                    | PackageManager.MATCH_SYSTEM_ONLY
-                                    | PackageManager.MATCH_FACTORY_ONLY);
-            if (ai != null) {
-                return ai;
-            }
-        } catch (PackageManager.NameNotFoundException e) {
-            Log.w(TAG, "Could not reach PackageManager", e);
-        }
-        return null;
-    }
-
     @Nullable
     private static ApplicationInfo getApplicationInfoIfSystemApp(
             int userId, String packageName, Context context) {