BluetoothOppObexServerSession.java revision 9d9e511fe7425fb3105ece227ecedb43d6333333
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 java.io.BufferedOutputStream; 36import java.io.File; 37import java.io.IOException; 38import java.io.InputStream; 39import java.util.Arrays; 40 41import android.content.ContentValues; 42import android.content.Context; 43import android.content.Intent; 44import android.net.Uri; 45import android.os.Handler; 46import android.os.Message; 47import android.os.PowerManager; 48import android.os.PowerManager.WakeLock; 49import android.util.Log; 50import android.webkit.MimeTypeMap; 51 52import javax.obex.HeaderSet; 53import javax.obex.ObexTransport; 54import javax.obex.Operation; 55import javax.obex.ResponseCodes; 56import javax.obex.ServerRequestHandler; 57import javax.obex.ServerSession; 58 59/** 60 * This class runs as an OBEX server 61 */ 62public class BluetoothOppObexServerSession extends ServerRequestHandler implements 63 BluetoothOppObexSession { 64 65 private static final String TAG = "BtOppObexServer"; 66 private static final boolean D = Constants.DEBUG; 67 private static final boolean V = Constants.VERBOSE; 68 69 private ObexTransport mTransport; 70 71 private Context mContext; 72 73 private Handler mCallback = null; 74 75 /* status when server is blocking for user/auto confirmation */ 76 private boolean mServerBlocking = true; 77 78 /* the current transfer info */ 79 private BluetoothOppShareInfo mInfo; 80 81 /* info id when we insert the record */ 82 private int mLocalShareInfoId; 83 84 private int mAccepted = BluetoothShare.USER_CONFIRMATION_PENDING; 85 86 private boolean mInterrupted = false; 87 88 private ServerSession mSession; 89 90 private long mTimestamp; 91 92 private BluetoothOppReceiveFileInfo mFileInfo; 93 94 private WakeLock mWakeLock; 95 96 private WakeLock mPartialWakeLock; 97 98 boolean mTimeoutMsgSent = false; 99 100 public BluetoothOppObexServerSession(Context context, ObexTransport transport) { 101 mContext = context; 102 mTransport = transport; 103 PowerManager pm = (PowerManager)mContext.getSystemService(Context.POWER_SERVICE); 104 mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP 105 | PowerManager.ON_AFTER_RELEASE, TAG); 106 mPartialWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); 107 } 108 109 public void unblock() { 110 mServerBlocking = false; 111 } 112 113 /** 114 * Called when connection is accepted from remote, to retrieve the first 115 * Header then wait for user confirmation 116 */ 117 public void preStart() { 118 if (D) Log.d(TAG, "acquire full WakeLock"); 119 mWakeLock.acquire(); 120 try { 121 if (D) Log.d(TAG, "Create ServerSession with transport " + mTransport.toString()); 122 mSession = new ServerSession(mTransport, this, null); 123 } catch (IOException e) { 124 Log.e(TAG, "Create server session error" + e); 125 } 126 } 127 128 /** 129 * Called from BluetoothOppTransfer to start the "Transfer" 130 */ 131 public void start(Handler handler) { 132 if (D) Log.d(TAG, "Start!"); 133 mCallback = handler; 134 135 } 136 137 /** 138 * Called from BluetoothOppTransfer to cancel the "Transfer" Otherwise, 139 * server should end by itself. 140 */ 141 public void stop() { 142 /* 143 * TODO now we implement in a tough way, just close the socket. 144 * maybe need nice way 145 */ 146 if (D) Log.d(TAG, "Stop!"); 147 mInterrupted = true; 148 if (mSession != null) { 149 try { 150 mSession.close(); 151 mTransport.close(); 152 } catch (IOException e) { 153 Log.e(TAG, "close mTransport error" + e); 154 } 155 } 156 mCallback = null; 157 mSession = null; 158 } 159 160 public void addShare(BluetoothOppShareInfo info) { 161 if (D) Log.d(TAG, "addShare for id " + info.mId); 162 mInfo = info; 163 mFileInfo = processShareInfo(); 164 } 165 166 @Override 167 public int onPut(Operation op) { 168 if (D) Log.d(TAG, "onPut " + op.toString()); 169 HeaderSet request; 170 String name, mimeType; 171 Long length; 172 173 int obexResponse = ResponseCodes.OBEX_HTTP_OK; 174 175 /** 176 * For multiple objects, reject further objects after user deny the 177 * first one 178 */ 179 if (mAccepted == BluetoothShare.USER_CONFIRMATION_DENIED) { 180 return ResponseCodes.OBEX_HTTP_FORBIDDEN; 181 } 182 183 try { 184 boolean pre_reject = false; 185 request = op.getReceivedHeader(); 186 if (V) Constants.logHeader(request); 187 name = (String)request.getHeader(HeaderSet.NAME); 188 length = (Long)request.getHeader(HeaderSet.LENGTH); 189 mimeType = (String)request.getHeader(HeaderSet.TYPE); 190 191 if (length == 0) { 192 if (D) Log.w(TAG, "length is 0, reject the transfer"); 193 pre_reject = true; 194 obexResponse = ResponseCodes.OBEX_HTTP_LENGTH_REQUIRED; 195 } 196 197 if (name == null || name.equals("")) { 198 if (D) Log.w(TAG, "name is null or empty, reject the transfer"); 199 pre_reject = true; 200 obexResponse = ResponseCodes.OBEX_HTTP_BAD_REQUEST; 201 } 202 203 if (!pre_reject) { 204 /* first we look for Mimetype in Android map */ 205 String extension, type; 206 int dotIndex = name.indexOf('.'); 207 if (dotIndex < 0) { 208 if (D) Log.w(TAG, "There is no file extension, reject the transfer"); 209 pre_reject = true; 210 obexResponse = ResponseCodes.OBEX_HTTP_BAD_REQUEST; 211 } else { 212 extension = name.substring(dotIndex + 1).toLowerCase(); 213 MimeTypeMap map = MimeTypeMap.getSingleton(); 214 type = map.getMimeTypeFromExtension(extension); 215 if (V) Log.v(TAG, "Mimetype guessed from extension " + extension + " is " + type); 216 if (type != null) { 217 mimeType = type; 218 219 } else { 220 if (mimeType == null) { 221 if (D) Log.w(TAG, "Can't get mimetype, reject the transfer"); 222 pre_reject = true; 223 obexResponse = ResponseCodes.OBEX_HTTP_UNSUPPORTED_TYPE; 224 } 225 } 226 if (mimeType != null) { 227 mimeType = mimeType.toLowerCase(); 228 } 229 } 230 } 231 232 if (!pre_reject 233 && (mimeType == null || Constants.mimeTypeMatches(mimeType, 234 Constants.UNACCEPTABLE_SHARE_INBOUND_TYPES))) { 235 if (D) Log.w(TAG, "mimeType is null or in unacceptable list, reject the transfer"); 236 pre_reject = true; 237 obexResponse = ResponseCodes.OBEX_HTTP_UNSUPPORTED_TYPE; 238 } 239 240 if (pre_reject && obexResponse != ResponseCodes.OBEX_HTTP_OK) { 241 // some bad implemented client won't send disconnect 242 return obexResponse; 243 } 244 245 } catch (IOException e) { 246 Log.e(TAG, "get getReceivedHeaders error " + e); 247 return ResponseCodes.OBEX_HTTP_BAD_REQUEST; 248 } 249 250 ContentValues values = new ContentValues(); 251 252 values.put(BluetoothShare.FILENAME_HINT, name); 253 values.put(BluetoothShare.TOTAL_BYTES, length.intValue()); 254 values.put(BluetoothShare.MIMETYPE, mimeType); 255 256 if (mTransport instanceof BluetoothOppRfcommTransport) { 257 String a = ((BluetoothOppRfcommTransport)mTransport).getRemoteAddress(); 258 values.put(BluetoothShare.DESTINATION, a); 259 } else { 260 values.put(BluetoothShare.DESTINATION, "FF:FF:FF:00:00:00"); 261 } 262 263 values.put(BluetoothShare.DIRECTION, BluetoothShare.DIRECTION_INBOUND); 264 values.put(BluetoothShare.TIMESTAMP, mTimestamp); 265 266 boolean needConfirm = true; 267 /** It's not first put if !serverBlocking, so we auto accept it */ 268 if (!mServerBlocking) { 269 values.put(BluetoothShare.USER_CONFIRMATION, 270 BluetoothShare.USER_CONFIRMATION_AUTO_CONFIRMED); 271 needConfirm = false; 272 } 273 274 Uri contentUri = mContext.getContentResolver().insert(BluetoothShare.CONTENT_URI, values); 275 mLocalShareInfoId = Integer.parseInt(contentUri.getPathSegments().get(1)); 276 277 if (needConfirm) { 278 Intent in = new Intent(BluetoothShare.INCOMING_FILE_CONFIRMATION_REQUEST_ACTION); 279 in.setClassName(Constants.THIS_PACKAGE_NAME, BluetoothOppReceiver.class.getName()); 280 mContext.sendBroadcast(in); 281 } 282 283 if (V) Log.v(TAG, "insert contentUri: " + contentUri); 284 if (V) Log.v(TAG, "mLocalShareInfoId = " + mLocalShareInfoId); 285 286 if (V) Log.v(TAG, "acquire partial WakeLock"); 287 if (mWakeLock.isHeld()) { 288 mPartialWakeLock.acquire(); 289 mWakeLock.release(); 290 } 291 292 mServerBlocking = true; 293 294 synchronized (this) { 295 try { 296 297 while (mServerBlocking) { 298 wait(1000); 299 if (mCallback != null && !mTimeoutMsgSent) { 300 mCallback.sendMessageDelayed(mCallback 301 .obtainMessage(BluetoothOppObexSession.MSG_CONNECT_TIMEOUT), 302 BluetoothOppObexSession.SESSION_TIMEOUT); 303 mTimeoutMsgSent = true; 304 if (V) Log.v(TAG, "MSG_CONNECT_TIMEOUT sent"); 305 } 306 } 307 } catch (InterruptedException e) { 308 if (V) Log.v(TAG, "Interrupted in onPut blocking"); 309 } 310 } 311 if (D) Log.d(TAG, "Server unblocked "); 312 synchronized (this) { 313 if (mCallback != null && mTimeoutMsgSent) { 314 mCallback.removeMessages(BluetoothOppObexSession.MSG_CONNECT_TIMEOUT); 315 } 316 } 317 318 /* we should have mInfo now */ 319 320 /* 321 * TODO check if this mInfo match the one that we insert before server 322 * blocking? just to make sure no error happens 323 */ 324 if (mInfo.mId != mLocalShareInfoId) { 325 Log.e(TAG, "Unexpected error!"); 326 } 327 mAccepted = mInfo.mConfirm; 328 329 if (V) Log.v(TAG, "after confirm: userAccepted=" + mAccepted); 330 int status = BluetoothShare.STATUS_SUCCESS; 331 332 if (mAccepted == BluetoothShare.USER_CONFIRMATION_CONFIRMED 333 || mAccepted == BluetoothShare.USER_CONFIRMATION_AUTO_CONFIRMED) { 334 /* Confirm or auto-confirm */ 335 336 if (mFileInfo.mFileName == null) { 337 status = mFileInfo.mStatus; 338 /* TODO need to check if this line is correct */ 339 mInfo.mStatus = mFileInfo.mStatus; 340 Constants.updateShareStatus(mContext, mInfo.mId, status); 341 obexResponse = ResponseCodes.OBEX_HTTP_INTERNAL_ERROR; 342 343 } 344 345 if (mFileInfo.mFileName != null) { 346 347 ContentValues updateValues = new ContentValues(); 348 contentUri = Uri.parse(BluetoothShare.CONTENT_URI + "/" + mInfo.mId); 349 updateValues.put(BluetoothShare._DATA, mFileInfo.mFileName); 350 updateValues.put(BluetoothShare.STATUS, BluetoothShare.STATUS_RUNNING); 351 mContext.getContentResolver().update(contentUri, updateValues, null, null); 352 353 status = receiveFile(mFileInfo, op); 354 /* 355 * TODO map status to obex response code 356 */ 357 if (status != BluetoothShare.STATUS_SUCCESS) { 358 obexResponse = ResponseCodes.OBEX_HTTP_INTERNAL_ERROR; 359 } 360 Constants.updateShareStatus(mContext, mInfo.mId, status); 361 } 362 363 if (status == BluetoothShare.STATUS_SUCCESS) { 364 Message msg = Message.obtain(mCallback, BluetoothOppObexSession.MSG_SHARE_COMPLETE); 365 msg.obj = mInfo; 366 msg.sendToTarget(); 367 } else { 368 if (mCallback != null) { 369 Message msg = Message.obtain(mCallback, 370 BluetoothOppObexSession.MSG_SESSION_ERROR); 371 mInfo.mStatus = status; 372 msg.obj = mInfo; 373 msg.sendToTarget(); 374 } 375 } 376 } else if (mAccepted == BluetoothShare.USER_CONFIRMATION_DENIED 377 || mAccepted == BluetoothShare.USER_CONFIRMATION_TIMEOUT) { 378 /* user actively deny the inbound transfer */ 379 /* 380 * Note There is a question: what's next if user deny the first obj? 381 * Option 1 :continue prompt for next objects 382 * Option 2 :reject next objects and finish the session 383 * Now we take option 2: 384 */ 385 386 Log.i(TAG, "Rejected incoming request"); 387 if (mFileInfo.mFileName != null) { 388 try { 389 mFileInfo.mOutputStream.close(); 390 } catch (IOException e) { 391 Log.e(TAG, "error close file stream"); 392 } 393 new File(mFileInfo.mFileName).delete(); 394 } 395 // set status as local cancel 396 status = BluetoothShare.STATUS_CANCELED; 397 Constants.updateShareStatus(mContext, mInfo.mId, status); 398 obexResponse = ResponseCodes.OBEX_HTTP_FORBIDDEN; 399 400 Message msg = Message.obtain(mCallback); 401 msg.what = BluetoothOppObexSession.MSG_SHARE_INTERRUPTED; 402 mInfo.mStatus = status; 403 msg.obj = mInfo; 404 msg.sendToTarget(); 405 } 406 return obexResponse; 407 } 408 409 private int receiveFile(BluetoothOppReceiveFileInfo fileInfo, Operation op) { 410 /* 411 * implement receive file 412 */ 413 int status = -1; 414 BufferedOutputStream bos = null; 415 416 InputStream is = null; 417 boolean error = false; 418 try { 419 is = op.openInputStream(); 420 } catch (IOException e1) { 421 Log.e(TAG, "Error when openInputStream"); 422 status = BluetoothShare.STATUS_OBEX_DATA_ERROR; 423 error = true; 424 } 425 426 Uri contentUri = Uri.parse(BluetoothShare.CONTENT_URI + "/" + mInfo.mId); 427 428 if (!error) { 429 ContentValues updateValues = new ContentValues(); 430 updateValues.put(BluetoothShare._DATA, fileInfo.mFileName); 431 mContext.getContentResolver().update(contentUri, updateValues, null, null); 432 } 433 434 int position = 0; 435 if (!error) { 436 bos = new BufferedOutputStream(fileInfo.mOutputStream, 0x10000); 437 } 438 439 if (!error) { 440 int outputBufferSize = op.getMaxPacketSize(); 441 byte[] b = new byte[outputBufferSize]; 442 int readLength = 0; 443 long timestamp = 0; 444 try { 445 while ((!mInterrupted) && (position != fileInfo.mLength)) { 446 447 if (V) timestamp = System.currentTimeMillis(); 448 449 readLength = is.read(b); 450 451 if (readLength == -1) { 452 if (D) Log.d(TAG, "Receive file reached stream end at position" + position); 453 break; 454 } 455 456 bos.write(b, 0, readLength); 457 position += readLength; 458 459 if (V) { 460 Log.v(TAG, "Receive file position = " + position + " readLength " 461 + readLength + " bytes took " 462 + (System.currentTimeMillis() - timestamp) + " ms"); 463 } 464 465 ContentValues updateValues = new ContentValues(); 466 updateValues.put(BluetoothShare.CURRENT_BYTES, position); 467 mContext.getContentResolver().update(contentUri, updateValues, null, null); 468 } 469 } catch (IOException e1) { 470 Log.e(TAG, "Error when receiving file"); 471 status = BluetoothShare.STATUS_OBEX_DATA_ERROR; 472 error = true; 473 } 474 } 475 476 if (mInterrupted) { 477 if (D) Log.d(TAG, "receiving file interrupted by user."); 478 status = BluetoothShare.STATUS_CANCELED; 479 } else { 480 if (position == fileInfo.mLength) { 481 if (D) Log.d(TAG, "Receiving file completed for " + fileInfo.mFileName); 482 status = BluetoothShare.STATUS_SUCCESS; 483 } else { 484 if (D) Log.d(TAG, "Reading file failed at " + position + " of " + fileInfo.mLength); 485 if (status == -1) { 486 status = BluetoothShare.STATUS_UNKNOWN_ERROR; 487 } 488 } 489 } 490 491 if (bos != null) { 492 try { 493 bos.close(); 494 } catch (IOException e) { 495 Log.e(TAG, "Error when closing stream after send"); 496 } 497 } 498 return status; 499 } 500 501 private BluetoothOppReceiveFileInfo processShareInfo() { 502 if (D) Log.d(TAG, "processShareInfo() " + mInfo.mId); 503 BluetoothOppReceiveFileInfo fileInfo = BluetoothOppReceiveFileInfo.generateFileInfo( 504 mContext, mInfo.mId); 505 if (V) { 506 Log.v(TAG, "Generate BluetoothOppReceiveFileInfo:"); 507 Log.v(TAG, "filename :" + fileInfo.mFileName); 508 Log.v(TAG, "length :" + fileInfo.mLength); 509 Log.v(TAG, "status :" + fileInfo.mStatus); 510 } 511 return fileInfo; 512 } 513 514 @Override 515 public int onConnect(HeaderSet request, HeaderSet reply) { 516 517 if (D) Log.d(TAG, "onConnect"); 518 if (V) Constants.logHeader(request); 519 try { 520 byte[] uuid = (byte[])request.getHeader(HeaderSet.TARGET); 521 if (V) Log.v(TAG, "onConnect(): uuid =" + Arrays.toString(uuid)); 522 if(uuid != null) { 523 reply.setHeader(HeaderSet.WHO, uuid); 524 } 525 } catch (IOException e) { 526 Log.e(TAG, e.toString()); 527 return ResponseCodes.OBEX_HTTP_INTERNAL_ERROR; 528 } 529 mTimestamp = System.currentTimeMillis(); 530 return ResponseCodes.OBEX_HTTP_OK; 531 } 532 533 @Override 534 public void onDisconnect(HeaderSet req, HeaderSet resp) { 535 if (D) Log.d(TAG, "onDisconnect"); 536 resp.responseCode = ResponseCodes.OBEX_HTTP_OK; 537 } 538 539 @Override 540 public void onClose() { 541 if (V) Log.v(TAG, "release WakeLock"); 542 if (mWakeLock.isHeld()) { 543 mWakeLock.release(); 544 } 545 if (mPartialWakeLock.isHeld()) { 546 mPartialWakeLock.release(); 547 } 548 /* onClose could happen even before start() where mCallback is set */ 549 if (mCallback != null) { 550 Message msg = Message.obtain(mCallback); 551 msg.what = BluetoothOppObexSession.MSG_SESSION_COMPLETE; 552 msg.obj = mInfo; 553 msg.sendToTarget(); 554 } 555 } 556} 557