| /* |
| * Copyright 2016, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.managedprovisioning.task.nonrequiredapps; |
| |
| import static com.android.internal.util.Preconditions.checkNotNull; |
| |
| import android.annotation.IntDef; |
| import android.app.AppGlobals; |
| import android.content.Context; |
| import android.content.pm.IPackageManager; |
| import android.content.pm.PackageManager; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.managedprovisioning.common.Utils; |
| import com.android.managedprovisioning.model.ProvisioningParams; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.util.Collections; |
| import java.util.Set; |
| |
| /** |
| * Logic that calculates which system apps should be removed during profile creation and subsequent |
| * OTAs. It also decides whether a snapshot should be taken or not. |
| */ |
| public class NonRequiredAppsLogic { |
| |
| @IntDef({ |
| Case.OTA_LEAVE_APPS, |
| Case.OTA_REMOVE_APPS, |
| Case.NEW_PROFILE_LEAVE_APPS, |
| Case.NEW_PROFILE_REMOVE_APPS |
| }) |
| @Retention(RetentionPolicy.SOURCE) |
| private @interface Case { |
| int OTA_LEAVE_APPS = 0; |
| int OTA_REMOVE_APPS = 1; |
| int NEW_PROFILE_LEAVE_APPS = 2; |
| int NEW_PROFILE_REMOVE_APPS = 3; |
| } |
| |
| private final PackageManager mPackageManager; |
| private final IPackageManager mIPackageManager; |
| private final boolean mNewProfile; |
| private final ProvisioningParams mParams; |
| private final SystemAppsSnapshot mSnapshot; |
| private final OverlayPackagesProvider mProvider; |
| private final Utils mUtils; |
| |
| public NonRequiredAppsLogic( |
| Context context, |
| boolean newProfile, |
| ProvisioningParams params) { |
| this( |
| context.getPackageManager(), |
| AppGlobals.getPackageManager(), |
| newProfile, |
| params, |
| new SystemAppsSnapshot(context), |
| new OverlayPackagesProvider(context, params), |
| new Utils()); |
| } |
| |
| @VisibleForTesting |
| NonRequiredAppsLogic( |
| PackageManager packageManager, |
| IPackageManager iPackageManager, |
| boolean newProfile, |
| ProvisioningParams params, |
| SystemAppsSnapshot snapshot, |
| OverlayPackagesProvider provider, |
| Utils utils) { |
| mPackageManager = checkNotNull(packageManager); |
| mIPackageManager = checkNotNull(iPackageManager); |
| mNewProfile = newProfile; |
| mParams = checkNotNull(params); |
| mSnapshot = checkNotNull(snapshot); |
| mProvider = checkNotNull(provider); |
| mUtils = checkNotNull(utils); |
| } |
| |
| public Set<String> getSystemAppsToRemove(int userId) { |
| if (!shouldDeleteSystemApps(userId)) { |
| return Collections.emptySet(); |
| } |
| |
| // Start with all system apps |
| Set<String> newSystemApps = mUtils.getCurrentSystemApps(mIPackageManager, userId); |
| |
| // Remove the ones that were already present in the last snapshot only when OTA |
| if (!mNewProfile) { |
| newSystemApps.removeAll(mSnapshot.getSnapshot(userId)); |
| } |
| |
| // Get the packages from the black/white lists |
| Set<String> packagesToDelete = mProvider.getNonRequiredApps(userId); |
| |
| // Retain only new system apps |
| packagesToDelete.retainAll(newSystemApps); |
| |
| return packagesToDelete; |
| } |
| |
| public void maybeTakeSystemAppsSnapshot(int userId) { |
| if (shouldDeleteSystemApps(userId)) { |
| mSnapshot.takeNewSnapshot(userId); |
| } |
| } |
| |
| private boolean shouldDeleteSystemApps(int userId) { |
| @Case int which = getCase(userId); |
| return (Case.NEW_PROFILE_REMOVE_APPS == which) || (Case.OTA_REMOVE_APPS == which); |
| } |
| |
| private @Case int getCase(int userId) { |
| if (mNewProfile) { |
| if (mParams.leaveAllSystemAppsEnabled) { |
| return Case.NEW_PROFILE_LEAVE_APPS; |
| } else { |
| return Case.NEW_PROFILE_REMOVE_APPS; |
| } |
| } else { |
| if (mSnapshot.hasSnapshot(userId)) { |
| return Case.OTA_REMOVE_APPS; |
| } else { |
| return Case.OTA_LEAVE_APPS; |
| } |
| } |
| } |
| } |