BluetoothOppManager.java revision 8099f5e7bfa7227ba674b5f0076f331e737bafd7
1/* 2 * Copyright (c) 2008-2009, Motorola, Inc. 3 * 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * - Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * - Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * - Neither the name of the Motorola, Inc. nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33package com.android.bluetooth.opp; 34 35import com.android.bluetooth.R; 36 37import android.bluetooth.BluetoothAdapter; 38import android.bluetooth.BluetoothDevice; 39import android.content.ContentResolver; 40import android.content.ContentValues; 41import android.content.Context; 42import android.content.Intent; 43import android.content.SharedPreferences; 44import android.net.Uri; 45import android.os.Process; 46import android.os.SystemClock; 47import android.text.TextUtils; 48import android.util.Log; 49import android.util.Pair; 50 51import java.util.ArrayList; 52import java.util.Iterator; 53import java.util.List; 54 55/** 56 * This class provides a simplified interface on top of other Bluetooth service 57 * layer components; Also it handles some Opp application level variables. It's 58 * a singleton got from BluetoothOppManager.getInstance(context); 59 */ 60public class BluetoothOppManager { 61 private static final String TAG = "BluetoothOppManager"; 62 private static final boolean V = Constants.VERBOSE; 63 64 private static BluetoothOppManager INSTANCE; 65 66 /** Used when obtaining a reference to the singleton instance. */ 67 private static Object INSTANCE_LOCK = new Object(); 68 69 private boolean mInitialized; 70 71 private Context mContext; 72 73 private BluetoothAdapter mAdapter; 74 75 private String mMimeTypeOfSendingFile; 76 77 private String mUriOfSendingFile; 78 79 private String mMimeTypeOfSendingFiles; 80 81 private ArrayList<Uri> mUrisOfSendingFiles; 82 83 private boolean mIsHandoverInitiated; 84 85 private static final String OPP_PREFERENCE_FILE = "OPPMGR"; 86 87 private static final String SENDING_FLAG = "SENDINGFLAG"; 88 89 private static final String MIME_TYPE = "MIMETYPE"; 90 91 private static final String FILE_URI = "FILE_URI"; 92 93 private static final String MIME_TYPE_MULTIPLE = "MIMETYPE_MULTIPLE"; 94 95 private static final String FILE_URIS = "FILE_URIS"; 96 97 private static final String MULTIPLE_FLAG = "MULTIPLE_FLAG"; 98 99 private static final String ARRAYLIST_ITEM_SEPERATOR = ";"; 100 101 private static final int ALLOWED_INSERT_SHARE_THREAD_NUMBER = 3; 102 103 // used to judge if need continue sending process after received a 104 // ENABLED_ACTION 105 public boolean mSendingFlag; 106 107 public boolean mMultipleFlag; 108 109 private int mfileNumInBatch; 110 111 private int mInsertShareThreadNum = 0; 112 113 // A list of devices that may send files over OPP to this device 114 // without user confirmation. Used for connection handover from forex NFC. 115 private List<Pair<String,Long> > mWhitelist = new ArrayList<Pair<String, Long> >(); 116 117 // The time for which the whitelist entries remain valid. 118 private static final int WHITELIST_DURATION_MS = 15000; 119 120 /** 121 * Get singleton instance. 122 */ 123 public static BluetoothOppManager getInstance(Context context) { 124 synchronized (INSTANCE_LOCK) { 125 if (INSTANCE == null) { 126 INSTANCE = new BluetoothOppManager(); 127 } 128 INSTANCE.init(context); 129 130 return INSTANCE; 131 } 132 } 133 134 /** 135 * init 136 */ 137 private boolean init(Context context) { 138 if (mInitialized) 139 return true; 140 mInitialized = true; 141 142 mContext = context; 143 144 mAdapter = BluetoothAdapter.getDefaultAdapter(); 145 if (mAdapter == null) { 146 if (V) Log.v(TAG, "BLUETOOTH_SERVICE is not started! "); 147 } 148 149 // Restore data from preference 150 restoreApplicationData(); 151 152 return true; 153 } 154 155 156 private void cleanupWhitelist() { 157 // Removes expired entries 158 long curTime = SystemClock.elapsedRealtime(); 159 for (Iterator<Pair<String,Long>> iter = mWhitelist.iterator(); iter.hasNext(); ) { 160 Pair<String,Long> entry = iter.next(); 161 if (curTime - entry.second > WHITELIST_DURATION_MS) { 162 if (V) Log.v(TAG, "Cleaning out whitelist entry " + entry.first); 163 iter.remove(); 164 } 165 } 166 } 167 168 public void addToWhitelist(String address) { 169 if (address == null) return; 170 171 mWhitelist.add(new Pair<String, Long>(address, SystemClock.elapsedRealtime())); 172 } 173 174 public boolean isWhitelisted(String address) { 175 cleanupWhitelist(); 176 for (Pair<String,Long> entry : mWhitelist) { 177 if (entry.first.equals(address)) return true; 178 } 179 return false; 180 } 181 182 /** 183 * Restore data from preference 184 */ 185 private void restoreApplicationData() { 186 SharedPreferences settings = mContext.getSharedPreferences(OPP_PREFERENCE_FILE, 0); 187 188 // All member vars are not initialized till now 189 mSendingFlag = settings.getBoolean(SENDING_FLAG, false); 190 mMimeTypeOfSendingFile = settings.getString(MIME_TYPE, null); 191 mUriOfSendingFile = settings.getString(FILE_URI, null); 192 mMimeTypeOfSendingFiles = settings.getString(MIME_TYPE_MULTIPLE, null); 193 mMultipleFlag = settings.getBoolean(MULTIPLE_FLAG, false); 194 195 if (V) Log.v(TAG, "restoreApplicationData! " + mSendingFlag + mMultipleFlag 196 + mMimeTypeOfSendingFile + mUriOfSendingFile); 197 198 String strUris = settings.getString(FILE_URIS, null); 199 mUrisOfSendingFiles = new ArrayList<Uri>(); 200 if (strUris != null) { 201 String[] splitUri = strUris.split(ARRAYLIST_ITEM_SEPERATOR); 202 for (int i = 0; i < splitUri.length; i++) { 203 mUrisOfSendingFiles.add(Uri.parse(splitUri[i])); 204 if (V) Log.v(TAG, "Uri in batch: " + Uri.parse(splitUri[i])); 205 } 206 } 207 208 mContext.getSharedPreferences(OPP_PREFERENCE_FILE, 0).edit().clear().apply(); 209 } 210 211 /** 212 * Save application data to preference, need restore these data when service restart 213 */ 214 private void storeApplicationData() { 215 SharedPreferences.Editor editor = mContext.getSharedPreferences(OPP_PREFERENCE_FILE, 0) 216 .edit(); 217 editor.putBoolean(SENDING_FLAG, mSendingFlag); 218 editor.putBoolean(MULTIPLE_FLAG, mMultipleFlag); 219 if (mMultipleFlag) { 220 editor.putString(MIME_TYPE_MULTIPLE, mMimeTypeOfSendingFiles); 221 StringBuilder sb = new StringBuilder(); 222 for (int i = 0, count = mUrisOfSendingFiles.size(); i < count; i++) { 223 Uri uriContent = mUrisOfSendingFiles.get(i); 224 sb.append(uriContent); 225 sb.append(ARRAYLIST_ITEM_SEPERATOR); 226 } 227 String strUris = sb.toString(); 228 editor.putString(FILE_URIS, strUris); 229 230 editor.remove(MIME_TYPE); 231 editor.remove(FILE_URI); 232 } else { 233 editor.putString(MIME_TYPE, mMimeTypeOfSendingFile); 234 editor.putString(FILE_URI, mUriOfSendingFile); 235 236 editor.remove(MIME_TYPE_MULTIPLE); 237 editor.remove(FILE_URIS); 238 } 239 editor.apply(); 240 if (V) Log.v(TAG, "Application data stored to SharedPreference! "); 241 } 242 243 public void saveSendingFileInfo(String mimeType, String uri, boolean isHandover) { 244 synchronized (BluetoothOppManager.this) { 245 mMultipleFlag = false; 246 mMimeTypeOfSendingFile = mimeType; 247 mUriOfSendingFile = uri; 248 mIsHandoverInitiated = isHandover; 249 storeApplicationData(); 250 } 251 } 252 253 public void saveSendingFileInfo(String mimeType, ArrayList<Uri> uris, boolean isHandover) { 254 synchronized (BluetoothOppManager.this) { 255 mMultipleFlag = true; 256 mMimeTypeOfSendingFiles = mimeType; 257 mUrisOfSendingFiles = uris; 258 mIsHandoverInitiated = isHandover; 259 storeApplicationData(); 260 } 261 } 262 263 /** 264 * Get the current status of Bluetooth hardware. 265 * @return true if Bluetooth enabled, false otherwise. 266 */ 267 public boolean isEnabled() { 268 if (mAdapter != null) { 269 return mAdapter.isEnabled(); 270 } else { 271 if (V) Log.v(TAG, "BLUETOOTH_SERVICE is not available! "); 272 return false; 273 } 274 } 275 276 /** 277 * Enable Bluetooth hardware. 278 */ 279 public void enableBluetooth() { 280 if (mAdapter != null) { 281 mAdapter.enable(); 282 } 283 } 284 285 /** 286 * Disable Bluetooth hardware. 287 */ 288 public void disableBluetooth() { 289 if (mAdapter != null) { 290 mAdapter.disable(); 291 } 292 } 293 294 /** 295 * Get device name per bluetooth address. 296 */ 297 public String getDeviceName(BluetoothDevice device) { 298 String deviceName; 299 300 deviceName = BluetoothOppPreference.getInstance(mContext).getName(device); 301 302 if (deviceName == null && mAdapter != null) { 303 deviceName = device.getName(); 304 } 305 306 if (deviceName == null) { 307 deviceName = mContext.getString(R.string.unknown_device); 308 } 309 310 return deviceName; 311 } 312 313 public int getBatchSize() { 314 synchronized (BluetoothOppManager.this) { 315 return mfileNumInBatch; 316 } 317 } 318 319 /** 320 * Fork a thread to insert share info to db. 321 */ 322 public void startTransfer(BluetoothDevice device) { 323 if (V) Log.v(TAG, "Active InsertShareThread number is : " + mInsertShareThreadNum); 324 InsertShareInfoThread insertThread; 325 synchronized (BluetoothOppManager.this) { 326 if (mInsertShareThreadNum > ALLOWED_INSERT_SHARE_THREAD_NUMBER) { 327 Log.e(TAG, "Too many shares user triggered concurrently!"); 328 329 // Notice user 330 Intent in = new Intent(mContext, BluetoothOppBtErrorActivity.class); 331 in.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 332 in.putExtra("title", mContext.getString(R.string.enabling_progress_title)); 333 in.putExtra("content", mContext.getString(R.string.ErrorTooManyRequests)); 334 mContext.startActivity(in); 335 336 return; 337 } 338 insertThread = new InsertShareInfoThread(device, mMultipleFlag, mMimeTypeOfSendingFile, 339 mUriOfSendingFile, mMimeTypeOfSendingFiles, mUrisOfSendingFiles, 340 mIsHandoverInitiated); 341 if (mMultipleFlag) { 342 mfileNumInBatch = mUrisOfSendingFiles.size(); 343 } 344 } 345 346 insertThread.start(); 347 } 348 349 /** 350 * Thread to insert share info to db. In multiple files (say 100 files) 351 * share case, the inserting share info to db operation would be a time 352 * consuming operation, so need a thread to handle it. This thread allows 353 * multiple instances to support below case: User select multiple files to 354 * share to one device (say device 1), and then right away share to second 355 * device (device 2), we need insert all these share info to db. 356 */ 357 private class InsertShareInfoThread extends Thread { 358 private final BluetoothDevice mRemoteDevice; 359 360 private final String mTypeOfSingleFile; 361 362 private final String mUri; 363 364 private final String mTypeOfMultipleFiles; 365 366 private final ArrayList<Uri> mUris; 367 368 private final boolean mIsMultiple; 369 370 private final boolean mIsHandoverInitiated; 371 372 public InsertShareInfoThread(BluetoothDevice device, boolean multiple, 373 String typeOfSingleFile, String uri, String typeOfMultipleFiles, 374 ArrayList<Uri> uris, boolean handoverInitiated) { 375 super("Insert ShareInfo Thread"); 376 this.mRemoteDevice = device; 377 this.mIsMultiple = multiple; 378 this.mTypeOfSingleFile = typeOfSingleFile; 379 this.mUri = uri; 380 this.mTypeOfMultipleFiles = typeOfMultipleFiles; 381 this.mUris = uris; 382 this.mIsHandoverInitiated = handoverInitiated; 383 384 synchronized (BluetoothOppManager.this) { 385 mInsertShareThreadNum++; 386 } 387 388 if (V) Log.v(TAG, "Thread id is: " + this.getId()); 389 } 390 391 @Override 392 public void run() { 393 Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 394 if (mRemoteDevice == null) { 395 Log.e(TAG, "Target bt device is null!"); 396 return; 397 } 398 if (mIsMultiple) { 399 insertMultipleShare(); 400 } else { 401 insertSingleShare(); 402 } 403 synchronized (BluetoothOppManager.this) { 404 mInsertShareThreadNum--; 405 } 406 } 407 408 /** 409 * Insert multiple sending sessions to db, only used by Opp application. 410 */ 411 private void insertMultipleShare() { 412 int count = mUris.size(); 413 Long ts = System.currentTimeMillis(); 414 for (int i = 0; i < count; i++) { 415 Uri fileUri = mUris.get(i); 416 ContentResolver contentResolver = mContext.getContentResolver(); 417 String contentType = contentResolver.getType(fileUri); 418 if (V) Log.v(TAG, "Got mimetype: " + contentType + " Got uri: " + fileUri); 419 if (TextUtils.isEmpty(contentType)) { 420 contentType = mTypeOfMultipleFiles; 421 } 422 423 ContentValues values = new ContentValues(); 424 values.put(BluetoothShare.URI, fileUri.toString()); 425 values.put(BluetoothShare.MIMETYPE, contentType); 426 values.put(BluetoothShare.DESTINATION, mRemoteDevice.getAddress()); 427 values.put(BluetoothShare.TIMESTAMP, ts); 428 if (mIsHandoverInitiated) { 429 values.put(BluetoothShare.USER_CONFIRMATION, 430 BluetoothShare.USER_CONFIRMATION_HANDOVER_CONFIRMED); 431 } 432 final Uri contentUri = mContext.getContentResolver().insert( 433 BluetoothShare.CONTENT_URI, values); 434 if (V) Log.v(TAG, "Insert contentUri: " + contentUri + " to device: " 435 + getDeviceName(mRemoteDevice)); 436 } 437 } 438 439 /** 440 * Insert single sending session to db, only used by Opp application. 441 */ 442 private void insertSingleShare() { 443 ContentValues values = new ContentValues(); 444 values.put(BluetoothShare.URI, mUri); 445 values.put(BluetoothShare.MIMETYPE, mTypeOfSingleFile); 446 values.put(BluetoothShare.DESTINATION, mRemoteDevice.getAddress()); 447 if (mIsHandoverInitiated) { 448 values.put(BluetoothShare.USER_CONFIRMATION, 449 BluetoothShare.USER_CONFIRMATION_HANDOVER_CONFIRMED); 450 } 451 final Uri contentUri = mContext.getContentResolver().insert(BluetoothShare.CONTENT_URI, 452 values); 453 if (V) Log.v(TAG, "Insert contentUri: " + contentUri + " to device: " 454 + getDeviceName(mRemoteDevice)); 455 } 456 } 457 458} 459