1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.location; 18 19 import android.content.Context; 20 import android.content.pm.PackageManager; 21 22 /** 23 * Encapsulates utility functions and classes related to location permission checking. 24 */ 25 public final class LocationPermissionUtil { 26 /** 27 * Returns true if the calling process identified by {@code callerIdentity} is enabled to 28 * report location to AppOps service before providing device location identifiable information 29 * to its clients. Packages with these permissions must report any reporting of location 30 * information to apps, via AppOps. 31 * 32 * <p>The calling package represented by {@code callerIdentity} is considered a part of the 33 * extended Location Manager Service if it has all of the permissions below. 34 * <ul> 35 * <li>{@link android.Manifest.permission#LOCATION_HARDWARE} 36 * <li>{@link android.Manifest.permission#UPDATE_APP_OPS_STATS} 37 * </ul> 38 * 39 * <p>Any package with these permissions, that passes along location information from Android 40 * framework to apps, must report to AppOps, similarly to Location Manager Service - i.e. 41 * whenever it reports device location or location identifiable information such as 42 * GNSS status, GNSS measurements, etc. to its clients. 43 */ doesCallerReportToAppOps(Context context, CallerIdentity callerIdentity)44 public static boolean doesCallerReportToAppOps(Context context, CallerIdentity callerIdentity) { 45 return hasPermissionLocationHardware(context, callerIdentity) 46 && hasPermissionUpdateAppOpsStats(context, callerIdentity); 47 } 48 hasPermissionLocationHardware(Context context, CallerIdentity callerIdentity)49 private static boolean hasPermissionLocationHardware(Context context, 50 CallerIdentity callerIdentity) { 51 return context.checkPermission(android.Manifest.permission.LOCATION_HARDWARE, 52 callerIdentity.mPid, callerIdentity.mUid) == PackageManager.PERMISSION_GRANTED; 53 } 54 hasPermissionUpdateAppOpsStats(Context context, CallerIdentity callerIdentity)55 private static boolean hasPermissionUpdateAppOpsStats(Context context, 56 CallerIdentity callerIdentity) { 57 return context.checkPermission(android.Manifest.permission.UPDATE_APP_OPS_STATS, 58 callerIdentity.mPid, callerIdentity.mUid) == PackageManager.PERMISSION_GRANTED; 59 } 60 LocationPermissionUtil()61 private LocationPermissionUtil() {} 62 } 63