src/com/android/settings/bluetooth/BluetoothPermissionRequest.java

   1 /*
   2  * Copyright (C) 2011 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.settings.bluetooth;
  18
  19 import android.app.Notification;
  20 import android.app.NotificationManager;
  21 import android.app.PendingIntent;
  22 import android.bluetooth.BluetoothDevice;
  23 import android.content.BroadcastReceiver;
  24 import android.content.Context;
  25 import android.content.Intent;
  26 import android.os.PowerManager;
  27 import android.util.Log;
  28
  29 import com.android.settings.R;
  30
  31 /**
  32  * BluetoothPermissionRequest is a receiver to receive Bluetooth connection
  33  * access request.
  34  */
  35 public final class BluetoothPermissionRequest extends BroadcastReceiver {
  36
  37     private static final String TAG = "BluetoothPermissionRequest";
  38     private static final boolean DEBUG = Utils.V;
  39     private static final int NOTIFICATION_ID = android.R.drawable.stat_sys_data_bluetooth;
  40
  41     private static final String NOTIFICATION_TAG_PBAP = "Phonebook Access" ;
  42     private static final String NOTIFICATION_TAG_MAP = "Message Access";
  43
  44
  45     Context mContext;
  46     int mRequestType;
  47     BluetoothDevice mDevice;
  48     String mReturnPackage = null;
  49     String mReturnClass = null;
  50
  51     @Override
  52     public void onReceive(Context context, Intent intent) {
  53         mContext = context;
  54         String action = intent.getAction();
  55
  56         if (DEBUG) Log.d(TAG, "onReceive" + action);
  57
  58         if (action.equals(BluetoothDevice.ACTION_CONNECTION_ACCESS_REQUEST)) {
  59             // convert broadcast intent into activity intent (same action string)
  60             mDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
  61             mRequestType = intent.getIntExtra(BluetoothDevice.EXTRA_ACCESS_REQUEST_TYPE,
  62                                                  BluetoothDevice.REQUEST_TYPE_PROFILE_CONNECTION);
  63             mReturnPackage = intent.getStringExtra(BluetoothDevice.EXTRA_PACKAGE_NAME);
  64             mReturnClass = intent.getStringExtra(BluetoothDevice.EXTRA_CLASS_NAME);
  65
  66             if (DEBUG) Log.d(TAG, "onReceive request type: " + mRequestType + " return "
  67                     + mReturnPackage + "," + mReturnClass);
  68
  69             // Check if user had made decisions on accepting or rejecting the phonebook access
  70             // request. If there is, reply the request and return, no need to start permission
  71             // activity dialog or notification.
  72             if (checkUserChoice()) {
  73                 return;
  74             }
  75
  76             Intent connectionAccessIntent = new Intent(action);
  77             connectionAccessIntent.setClass(context, BluetoothPermissionActivity.class);
  78             // We use the FLAG_ACTIVITY_MULTIPLE_TASK since we can have multiple concurrent access requests
  79             connectionAccessIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
  80             connectionAccessIntent.setType(Integer.toString(mRequestType)); /* This is needed to create two pending
  81                                                                                intents to the same activity.
  82                                                                                The value is not used in the activity. */
  83             connectionAccessIntent.putExtra(BluetoothDevice.EXTRA_ACCESS_REQUEST_TYPE,
  84                                             mRequestType);
  85             connectionAccessIntent.putExtra(BluetoothDevice.EXTRA_DEVICE, mDevice);
  86             connectionAccessIntent.putExtra(BluetoothDevice.EXTRA_PACKAGE_NAME, mReturnPackage);
  87             connectionAccessIntent.putExtra(BluetoothDevice.EXTRA_CLASS_NAME, mReturnClass);
  88
  89             String deviceAddress = mDevice != null ? mDevice.getAddress() : null;
  90             String title = null;
  91             String message = null;
  92             PowerManager powerManager =
  93                 (PowerManager) context.getSystemService(Context.POWER_SERVICE);
  94
  95             if (powerManager.isScreenOn() &&
  96                 LocalBluetoothPreferences.shouldShowDialogInForeground(context, deviceAddress) ) {
  97                 context.startActivity(connectionAccessIntent);
  98             } else {
  99                 // Put up a notification that leads to the dialog
 100
 101                 // Create an intent triggered by clicking on the
 102                 // "Clear All Notifications" button
 103
 104                 Intent deleteIntent = new Intent(BluetoothDevice.ACTION_CONNECTION_ACCESS_REPLY);
 105                 deleteIntent.putExtra(BluetoothDevice.EXTRA_DEVICE, mDevice);
 106                 deleteIntent.putExtra(BluetoothDevice.EXTRA_CONNECTION_ACCESS_RESULT,
 107                         BluetoothDevice.CONNECTION_ACCESS_NO);
 108                 deleteIntent.putExtra(BluetoothDevice.EXTRA_ACCESS_REQUEST_TYPE, mRequestType);
 109                 String deviceName = mDevice != null ? mDevice.getAliasName() : null;
 110                 switch (mRequestType) {
 111                     case BluetoothDevice.REQUEST_TYPE_PHONEBOOK_ACCESS:
 112                         title = context.getString(R.string.bluetooth_phonebook_request);
 113                         message = context.getString(R.string.bluetooth_pb_acceptance_dialog_text, deviceName, deviceName);
 114                         break;
 115                     case BluetoothDevice.REQUEST_TYPE_MESSAGE_ACCESS:
 116                         title = context.getString(R.string.bluetooth_map_request);
 117                         message = context.getString(R.string.bluetooth_map_acceptance_dialog_text, deviceName, deviceName);
 118                         break;
 119                     default:
 120                         title = context.getString(R.string.bluetooth_connection_permission_request);
 121                         message = context.getString(R.string.bluetooth_connection_dialog_text, deviceName, deviceName);
 122                         break;
 123                 }
 124                 Notification notification = new Notification.Builder(context)
 125                         .setContentTitle(title)
 126                         .setTicker(message)
 127                         .setContentText(message)
 128                         .setSmallIcon(android.R.drawable.stat_sys_data_bluetooth)
 129                         .setAutoCancel(true)
 130                         .setPriority(Notification.PRIORITY_MAX)
 131                         .setOnlyAlertOnce(false)
 132                         .setDefaults(Notification.DEFAULT_ALL)
 133                         .setContentIntent(PendingIntent.getActivity(context, 0,
 134                                 connectionAccessIntent, 0))
 135                         .setDeleteIntent(PendingIntent.getBroadcast(context, 0, deleteIntent, 0))
 136                         .setColor(context.getResources().getColor(
 137                                 com.android.internal.R.color.system_notification_accent_color))
 138                         .build();
 139
 140                 notification.flags |= Notification.FLAG_NO_CLEAR; /* cannot be set with the builder */
 141
 142                 NotificationManager notificationManager =
 143                     (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
 144
 145                 notificationManager.notify(getNotificationTag(mRequestType),NOTIFICATION_ID, notification);
 146             }
 147         } else if (action.equals(BluetoothDevice.ACTION_CONNECTION_ACCESS_CANCEL)) {
 148             // Remove the notification
 149             NotificationManager manager = (NotificationManager) context
 150                 .getSystemService(Context.NOTIFICATION_SERVICE);
 151             mRequestType = intent.getIntExtra(BluetoothDevice.EXTRA_ACCESS_REQUEST_TYPE,
 152                                         BluetoothDevice.REQUEST_TYPE_PHONEBOOK_ACCESS);
 153             manager.cancel(getNotificationTag(mRequestType), NOTIFICATION_ID);
 154         }
 155     }
 156
 157     private String getNotificationTag(int requestType) {
 158         if(requestType == BluetoothDevice.REQUEST_TYPE_PHONEBOOK_ACCESS) {
 159             return NOTIFICATION_TAG_PBAP;
 160         } else if(mRequestType == BluetoothDevice.REQUEST_TYPE_MESSAGE_ACCESS) {
 161             return NOTIFICATION_TAG_MAP;
 162         }
 163         return null;
 164     }
 165
 166     /**
 167      * @return true user had made a choice, this method replies to the request according
 168      *              to user's previous decision
 169      *         false user hadnot made any choice on this device
 170      */
 171     private boolean checkUserChoice() {
 172         boolean processed = false;
 173
 174         // ignore if it is something else than phonebook/message settings it wants us to remember
 175         if (mRequestType != BluetoothDevice.REQUEST_TYPE_PHONEBOOK_ACCESS
 176                 && mRequestType != BluetoothDevice.REQUEST_TYPE_MESSAGE_ACCESS) {
 177             if (DEBUG) Log.d(TAG, "Unknown RequestType: " + mRequestType);
 178             return processed;
 179         }
 180
 181         LocalBluetoothManager bluetoothManager = LocalBluetoothManager.getInstance(mContext);
 182         CachedBluetoothDeviceManager cachedDeviceManager =
 183             bluetoothManager.getCachedDeviceManager();
 184         CachedBluetoothDevice cachedDevice = cachedDeviceManager.findDevice(mDevice);
 185
 186         if (cachedDevice == null) {
 187             cachedDevice = cachedDeviceManager.addDevice(bluetoothManager.getBluetoothAdapter(),
 188                 bluetoothManager.getProfileManager(), mDevice);
 189         }
 190
 191         if(mRequestType == BluetoothDevice.REQUEST_TYPE_PHONEBOOK_ACCESS) {
 192
 193             int phonebookPermission = cachedDevice.getPhonebookPermissionChoice();
 194
 195             if (phonebookPermission == CachedBluetoothDevice.ACCESS_UNKNOWN) {
 196                 return processed;
 197             }
 198
 199             String intentName = BluetoothDevice.ACTION_CONNECTION_ACCESS_REPLY;
 200             if (phonebookPermission == CachedBluetoothDevice.ACCESS_ALLOWED) {
 201                 sendIntentToReceiver(intentName, true, BluetoothDevice.EXTRA_ALWAYS_ALLOWED, true);
 202                 processed = true;
 203             } else if (phonebookPermission == CachedBluetoothDevice.ACCESS_REJECTED) {
 204                 sendIntentToReceiver(intentName, false,
 205                                      null, false ); // dummy value, no effect since previous param is null
 206                 processed = true;
 207             } else {
 208                 Log.e(TAG, "Bad phonebookPermission: " + phonebookPermission);
 209             }
 210
 211         } else if(mRequestType == BluetoothDevice.REQUEST_TYPE_MESSAGE_ACCESS) {
 212
 213             int messagePermission = cachedDevice.getMessagePermissionChoice();
 214
 215             if (messagePermission == CachedBluetoothDevice.ACCESS_UNKNOWN) {
 216                 return processed;
 217             }
 218
 219             String intentName = BluetoothDevice.ACTION_CONNECTION_ACCESS_REPLY;
 220             if (messagePermission == CachedBluetoothDevice.ACCESS_ALLOWED) {
 221                 sendIntentToReceiver(intentName, true, BluetoothDevice.EXTRA_ALWAYS_ALLOWED, true);
 222                 processed = true;
 223             } else if (messagePermission == CachedBluetoothDevice.ACCESS_REJECTED) {
 224                 sendIntentToReceiver(intentName, false,
 225                                      null, false); // dummy value, no effect since previous param is null
 226                 processed = true;
 227             } else {
 228                 Log.e(TAG, "Bad messagePermission: " + messagePermission);
 229             }
 230         }
 231         if(DEBUG) Log.d(TAG,"checkUserChoice(): returning " + processed);
 232         return processed;
 233     }
 234
 235     private void sendIntentToReceiver(final String intentName, final boolean allowed,
 236                                       final String extraName, final boolean extraValue) {
 237         Intent intent = new Intent(intentName);
 238
 239         if (mReturnPackage != null && mReturnClass != null) {
 240             intent.setClassName(mReturnPackage, mReturnClass);
 241         }
 242
 243         intent.putExtra(BluetoothDevice.EXTRA_CONNECTION_ACCESS_RESULT,
 244                         allowed ? BluetoothDevice.CONNECTION_ACCESS_YES :
 245                         BluetoothDevice.CONNECTION_ACCESS_NO);
 246
 247         if (extraName != null) {
 248             intent.putExtra(extraName, extraValue);
 249         }
 250         intent.putExtra(BluetoothDevice.EXTRA_DEVICE, mDevice);
 251         intent.putExtra(BluetoothDevice.EXTRA_ACCESS_REQUEST_TYPE, mRequestType);
 252         mContext.sendBroadcast(intent, android.Manifest.permission.BLUETOOTH_ADMIN);
 253     }
 254 }