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      1 /*
      2  * Copyright (C) 2013 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 android.hardware.location;
     18 
     19 import android.Manifest;
     20 import android.app.Service;
     21 import android.content.Context;
     22 import android.content.Intent;
     23 import android.location.IFusedGeofenceHardware;
     24 import android.location.IGpsGeofenceHardware;
     25 import android.os.Binder;
     26 import android.os.IBinder;
     27 
     28 /**
     29  * Service that handles hardware geofencing.
     30  *
     31  * @hide
     32  */
     33 public class GeofenceHardwareService extends Service {
     34     private GeofenceHardwareImpl mGeofenceHardwareImpl;
     35     private Context mContext;
     36 
     37     @Override
     38     public void onCreate() {
     39         mContext = this;
     40         mGeofenceHardwareImpl = GeofenceHardwareImpl.getInstance(mContext);
     41     }
     42 
     43     @Override
     44     public IBinder onBind(Intent intent) {
     45         return mBinder;
     46     }
     47 
     48     @Override
     49     public boolean onUnbind(Intent intent) {
     50         return false;
     51     }
     52 
     53     @Override
     54     public void onDestroy() {
     55         mGeofenceHardwareImpl = null;
     56     }
     57 
     58 
     59     private void checkPermission(int pid, int uid, int monitoringType) {
     60         if (mGeofenceHardwareImpl.getAllowedResolutionLevel(pid, uid) <
     61                 mGeofenceHardwareImpl.getMonitoringResolutionLevel(monitoringType)) {
     62             throw new SecurityException("Insufficient permissions to access hardware geofence for"
     63                     + " type: " + monitoringType);
     64         }
     65     }
     66 
     67     private IBinder mBinder = new IGeofenceHardware.Stub() {
     68         @Override
     69         public void setGpsGeofenceHardware(IGpsGeofenceHardware service) {
     70             mGeofenceHardwareImpl.setGpsHardwareGeofence(service);
     71         }
     72 
     73         @Override
     74         public void setFusedGeofenceHardware(IFusedGeofenceHardware service) {
     75             mGeofenceHardwareImpl.setFusedGeofenceHardware(service);
     76         }
     77 
     78         @Override
     79         public int[] getMonitoringTypes() {
     80             mContext.enforceCallingPermission(Manifest.permission.LOCATION_HARDWARE,
     81                     "Location Hardware permission not granted to access hardware geofence");
     82 
     83             return mGeofenceHardwareImpl.getMonitoringTypes();
     84         }
     85 
     86         @Override
     87         public int getStatusOfMonitoringType(int monitoringType) {
     88             mContext.enforceCallingPermission(Manifest.permission.LOCATION_HARDWARE,
     89                     "Location Hardware permission not granted to access hardware geofence");
     90 
     91             return mGeofenceHardwareImpl.getStatusOfMonitoringType(monitoringType);
     92         }
     93 
     94         @Override
     95         public boolean addCircularFence(
     96                 int monitoringType,
     97                 GeofenceHardwareRequestParcelable request,
     98                 IGeofenceHardwareCallback callback) {
     99             mContext.enforceCallingPermission(Manifest.permission.LOCATION_HARDWARE,
    100                     "Location Hardware permission not granted to access hardware geofence");
    101             checkPermission(Binder.getCallingPid(), Binder.getCallingUid(), monitoringType);
    102             return mGeofenceHardwareImpl.addCircularFence(monitoringType, request, callback);
    103         }
    104 
    105         @Override
    106         public boolean removeGeofence(int id, int monitoringType) {
    107             mContext.enforceCallingPermission(Manifest.permission.LOCATION_HARDWARE,
    108                     "Location Hardware permission not granted to access hardware geofence");
    109 
    110             checkPermission(Binder.getCallingPid(), Binder.getCallingUid(), monitoringType);
    111             return mGeofenceHardwareImpl.removeGeofence(id, monitoringType);
    112         }
    113 
    114         @Override
    115         public boolean pauseGeofence(int id, int monitoringType) {
    116             mContext.enforceCallingPermission(Manifest.permission.LOCATION_HARDWARE,
    117                     "Location Hardware permission not granted to access hardware geofence");
    118 
    119             checkPermission(Binder.getCallingPid(), Binder.getCallingUid(), monitoringType);
    120             return mGeofenceHardwareImpl.pauseGeofence(id, monitoringType);
    121         }
    122 
    123         @Override
    124         public boolean resumeGeofence(int id, int monitoringType, int monitorTransitions) {
    125             mContext.enforceCallingPermission(Manifest.permission.LOCATION_HARDWARE,
    126                     "Location Hardware permission not granted to access hardware geofence");
    127 
    128             checkPermission(Binder.getCallingPid(), Binder.getCallingUid(), monitoringType);
    129             return mGeofenceHardwareImpl.resumeGeofence(id, monitoringType, monitorTransitions);
    130         }
    131 
    132         @Override
    133         public boolean registerForMonitorStateChangeCallback(int monitoringType,
    134                 IGeofenceHardwareMonitorCallback callback) {
    135             mContext.enforceCallingPermission(Manifest.permission.LOCATION_HARDWARE,
    136                     "Location Hardware permission not granted to access hardware geofence");
    137 
    138             checkPermission(Binder.getCallingPid(), Binder.getCallingUid(), monitoringType);
    139             return mGeofenceHardwareImpl.registerForMonitorStateChangeCallback(monitoringType,
    140                     callback);
    141         }
    142 
    143         @Override
    144         public boolean unregisterForMonitorStateChangeCallback(int monitoringType,
    145                 IGeofenceHardwareMonitorCallback callback) {
    146             mContext.enforceCallingPermission(Manifest.permission.LOCATION_HARDWARE,
    147                     "Location Hardware permission not granted to access hardware geofence");
    148 
    149             checkPermission(Binder.getCallingPid(), Binder.getCallingUid(), monitoringType);
    150             return mGeofenceHardwareImpl.unregisterForMonitorStateChangeCallback(monitoringType,
    151                     callback);
    152         }
    153     };
    154 }
    155