| /* |
| * Copyright (C) 2022 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.server.healthconnect.permission; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.net.Uri; |
| import android.os.UserHandle; |
| import android.util.Log; |
| |
| import com.android.modules.utils.BackgroundThread; |
| |
| /** |
| * Tracks installing/uninstalling, updates and changes of packages. |
| * |
| * @hide |
| */ |
| public class PackagePermissionChangesMonitor extends BroadcastReceiver { |
| private static final String TAG = "HealthPackageChangesMonitor"; |
| static final IntentFilter sPackageFilter = buildPackageChangeFilter(); |
| private final HealthPermissionIntentAppsTracker mPermissionIntentTracker; |
| private final FirstGrantTimeManager mFirstGrantTimeManager; |
| |
| public PackagePermissionChangesMonitor( |
| HealthPermissionIntentAppsTracker permissionIntentTracker, |
| FirstGrantTimeManager grantTimeManager) { |
| mPermissionIntentTracker = permissionIntentTracker; |
| mFirstGrantTimeManager = grantTimeManager; |
| } |
| |
| /** |
| * Register broadcast receiver to track package changes. |
| * |
| * @hide |
| */ |
| public void registerBroadcastReceiver(Context context) { |
| context.registerReceiverForAllUsers( |
| this, sPackageFilter, null, BackgroundThread.getHandler()); |
| } |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String packageName = getPackageName(intent); |
| UserHandle userHandle = getUserHandle(intent); |
| if (packageName == null || userHandle == null) { |
| Log.w(TAG, "can't extract info from the input intent"); |
| return; |
| } |
| mPermissionIntentTracker.onPackageChanged(packageName, userHandle); |
| |
| if (intent.getAction().equals(Intent.ACTION_PACKAGE_REMOVED) |
| && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { |
| final int uid = intent.getIntExtra(Intent.EXTRA_UID, /* default value= */ -1); |
| mFirstGrantTimeManager.onPackageRemoved(packageName, uid, userHandle); |
| } |
| } |
| |
| private static IntentFilter buildPackageChangeFilter() { |
| IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_REPLACED); |
| filter.addAction(Intent.ACTION_PACKAGE_ADDED); |
| filter.addAction(Intent.ACTION_PACKAGE_CHANGED); |
| filter.addAction(Intent.ACTION_PACKAGE_REMOVED); |
| filter.addDataScheme(/* scheme= */ "package"); |
| return filter; |
| } |
| |
| private String getPackageName(Intent intent) { |
| Uri uri = intent.getData(); |
| String pkg = uri != null ? uri.getSchemeSpecificPart() : null; |
| return pkg; |
| } |
| |
| private UserHandle getUserHandle(Intent intent) { |
| final int uid = intent.getIntExtra(Intent.EXTRA_UID, -1); |
| if (uid >= 0) { |
| return UserHandle.getUserHandleForUid(uid); |
| } else { |
| Log.w(TAG, "UID extra is missing from intent"); |
| return null; |
| } |
| } |
| } |