| /* |
| * Copyright (C) 2018 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.internal.os; |
| |
| |
| import android.app.AppGlobals; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** Maps AppIds to their package names. */ |
| public final class AppIdToPackageMap { |
| private final Map<Integer, String> mAppIdToPackageMap; |
| |
| @VisibleForTesting |
| public AppIdToPackageMap(Map<Integer, String> appIdToPackageMap) { |
| mAppIdToPackageMap = appIdToPackageMap; |
| } |
| |
| /** Creates a new {@link AppIdToPackageMap} for currently installed packages. */ |
| public static AppIdToPackageMap getSnapshot() { |
| List<PackageInfo> packages; |
| try { |
| packages = AppGlobals.getPackageManager() |
| .getInstalledPackages(PackageManager.MATCH_UNINSTALLED_PACKAGES |
| | PackageManager.MATCH_DIRECT_BOOT_UNAWARE |
| | PackageManager.MATCH_DIRECT_BOOT_AWARE, |
| UserHandle.USER_SYSTEM).getList(); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| final Map<Integer, String> map = new HashMap<>(); |
| for (PackageInfo pkg : packages) { |
| final int uid = pkg.applicationInfo.uid; |
| if (pkg.sharedUserId != null && map.containsKey(uid)) { |
| // Use sharedUserId string as package name if there are collisions |
| map.put(uid, "shared:" + pkg.sharedUserId); |
| } else { |
| map.put(uid, pkg.packageName); |
| } |
| } |
| return new AppIdToPackageMap(map); |
| } |
| |
| /** Maps the AppId to a package name. */ |
| public String mapAppId(int appId) { |
| String pkgName = mAppIdToPackageMap.get(appId); |
| return pkgName == null ? String.valueOf(appId) : pkgName; |
| } |
| |
| /** Maps the UID to a package name. */ |
| public String mapUid(int uid) { |
| final int appId = UserHandle.getAppId(uid); |
| final String pkgName = mAppIdToPackageMap.get(appId); |
| final String uidStr = UserHandle.formatUid(uid); |
| return pkgName == null ? uidStr : pkgName + '/' + uidStr; |
| } |
| } |