DrmManagerClient.java revision f05913aaa0cc96eab32be3431de1a80d405527a1
1/* 2 * Copyright (C) 2010 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 17package android.drm; 18 19import android.content.ContentResolver; 20import android.content.ContentValues; 21import android.content.Context; 22import android.database.Cursor; 23import android.database.sqlite.SQLiteException; 24import android.net.Uri; 25import android.os.Handler; 26import android.os.HandlerThread; 27import android.os.Looper; 28import android.os.Message; 29import android.provider.MediaStore; 30import android.util.Log; 31 32import java.io.IOException; 33import java.lang.ref.WeakReference; 34import java.util.ArrayList; 35import java.util.HashMap; 36 37/** 38 * Interface of DRM Framework. 39 * Java application will instantiate this class 40 * to access DRM agent through DRM Framework. 41 * 42 */ 43public class DrmManagerClient { 44 /** 45 * Constant field signifies the success or no error occurred 46 */ 47 public static final int ERROR_NONE = 0; 48 /** 49 * Constant field signifies that error occurred and the reason is not known 50 */ 51 public static final int ERROR_UNKNOWN = -2000; 52 53 private static final String TAG = "DrmManagerClient"; 54 55 static { 56 // Load the respective library 57 System.loadLibrary("drmframework_jni"); 58 } 59 60 /** 61 * Interface definition of a callback to be invoked to communicate 62 * some info and/or warning about DrmManagerClient. 63 */ 64 public interface OnInfoListener { 65 /** 66 * Called to indicate an info or a warning. 67 * 68 * @param client DrmManagerClient instance 69 * @param event instance which wraps reason and necessary information 70 */ 71 public void onInfo(DrmManagerClient client, DrmInfoEvent event); 72 } 73 74 /** 75 * Interface definition of a callback to be invoked to communicate 76 * the result of time consuming APIs asynchronously 77 */ 78 public interface OnEventListener { 79 /** 80 * Called to indicate the result of asynchronous APIs. 81 * 82 * @param client DrmManagerClient instance 83 * @param event instance which wraps type and message 84 * @param attributes resultant values in key and value pair. 85 */ 86 public void onEvent(DrmManagerClient client, DrmEvent event, 87 HashMap<String, Object> attributes); 88 } 89 90 /** 91 * Interface definition of a callback to be invoked to communicate 92 * the error occurred 93 */ 94 public interface OnErrorListener { 95 /** 96 * Called to indicate the error occurred. 97 * 98 * @param client DrmManagerClient instance 99 * @param event instance which wraps error type and message 100 */ 101 public void onError(DrmManagerClient client, DrmErrorEvent event); 102 } 103 104 private static final int ACTION_REMOVE_ALL_RIGHTS = 1001; 105 private static final int ACTION_PROCESS_DRM_INFO = 1002; 106 107 private int mUniqueId; 108 private int mNativeContext; 109 private Context mContext; 110 private InfoHandler mInfoHandler; 111 private EventHandler mEventHandler; 112 private OnInfoListener mOnInfoListener; 113 private OnEventListener mOnEventListener; 114 private OnErrorListener mOnErrorListener; 115 116 private class EventHandler extends Handler { 117 118 public EventHandler(Looper looper) { 119 super(looper); 120 } 121 122 public void handleMessage(Message msg) { 123 DrmEvent event = null; 124 DrmErrorEvent error = null; 125 HashMap<String, Object> attributes = new HashMap<String, Object>(); 126 127 switch(msg.what) { 128 case ACTION_PROCESS_DRM_INFO: { 129 final DrmInfo drmInfo = (DrmInfo) msg.obj; 130 DrmInfoStatus status = _processDrmInfo(mUniqueId, drmInfo); 131 if (null != status && DrmInfoStatus.STATUS_OK == status.statusCode) { 132 attributes.put(DrmEvent.DRM_INFO_STATUS_OBJECT, status); 133 event = new DrmEvent(mUniqueId, getEventType(status.infoType), null); 134 } else { 135 int infoType = (null != status) ? status.infoType : drmInfo.getInfoType(); 136 error = new DrmErrorEvent(mUniqueId, getErrorType(infoType), null); 137 } 138 break; 139 } 140 case ACTION_REMOVE_ALL_RIGHTS: { 141 if (ERROR_NONE == _removeAllRights(mUniqueId)) { 142 event = new DrmEvent(mUniqueId, DrmEvent.TYPE_ALL_RIGHTS_REMOVED, null); 143 } else { 144 error = new DrmErrorEvent(mUniqueId, 145 DrmErrorEvent.TYPE_REMOVE_ALL_RIGHTS_FAILED, null); 146 } 147 break; 148 } 149 default: 150 Log.e(TAG, "Unknown message type " + msg.what); 151 return; 152 } 153 if (null != mOnEventListener && null != event) { 154 mOnEventListener.onEvent(DrmManagerClient.this, event, attributes); 155 } 156 if (null != mOnErrorListener && null != error) { 157 mOnErrorListener.onError(DrmManagerClient.this, error); 158 } 159 } 160 } 161 162 /** 163 * {@hide} 164 */ 165 public static void notify( 166 Object thisReference, int uniqueId, int infoType, String message) { 167 DrmManagerClient instance = (DrmManagerClient)((WeakReference)thisReference).get(); 168 169 if (null != instance && null != instance.mInfoHandler) { 170 Message m = instance.mInfoHandler.obtainMessage( 171 InfoHandler.INFO_EVENT_TYPE, uniqueId, infoType, message); 172 instance.mInfoHandler.sendMessage(m); 173 } 174 } 175 176 private class InfoHandler extends Handler { 177 public static final int INFO_EVENT_TYPE = 1; 178 179 public InfoHandler(Looper looper) { 180 super(looper); 181 } 182 183 public void handleMessage(Message msg) { 184 DrmInfoEvent event = null; 185 DrmErrorEvent error = null; 186 187 switch (msg.what) { 188 case InfoHandler.INFO_EVENT_TYPE: 189 int uniqueId = msg.arg1; 190 int infoType = msg.arg2; 191 String message = msg.obj.toString(); 192 193 switch (infoType) { 194 case DrmInfoEvent.TYPE_REMOVE_RIGHTS: { 195 try { 196 DrmUtils.removeFile(message); 197 } catch (IOException e) { 198 e.printStackTrace(); 199 } 200 event = new DrmInfoEvent(uniqueId, infoType, message); 201 break; 202 } 203 case DrmInfoEvent.TYPE_ALREADY_REGISTERED_BY_ANOTHER_ACCOUNT: { 204 event = new DrmInfoEvent(uniqueId, infoType, message); 205 break; 206 } 207 default: 208 error = new DrmErrorEvent(uniqueId, infoType, message); 209 break; 210 } 211 212 if (null != mOnInfoListener && null != event) { 213 mOnInfoListener.onInfo(DrmManagerClient.this, event); 214 } 215 if (null != mOnErrorListener && null != error) { 216 mOnErrorListener.onError(DrmManagerClient.this, error); 217 } 218 return; 219 default: 220 Log.e(TAG, "Unknown message type " + msg.what); 221 return; 222 } 223 } 224 } 225 226 /** 227 * To instantiate DrmManagerClient 228 * 229 * @param context context of the caller 230 */ 231 public DrmManagerClient(Context context) { 232 mContext = context; 233 234 HandlerThread infoThread = new HandlerThread("DrmManagerClient.InfoHandler"); 235 infoThread.start(); 236 mInfoHandler = new InfoHandler(infoThread.getLooper()); 237 238 HandlerThread eventThread = new HandlerThread("DrmManagerClient.EventHandler"); 239 eventThread.start(); 240 mEventHandler = new EventHandler(eventThread.getLooper()); 241 242 // save the unique id 243 mUniqueId = hashCode(); 244 245 _initialize(mUniqueId, new WeakReference<DrmManagerClient>(this)); 246 } 247 248 protected void finalize() { 249 _finalize(mUniqueId); 250 } 251 252 /** 253 * Register a callback to be invoked when the caller required to receive 254 * supplementary information. 255 * 256 * @param infoListener 257 */ 258 public synchronized void setOnInfoListener(OnInfoListener infoListener) { 259 if (null != infoListener) { 260 mOnInfoListener = infoListener; 261 } 262 } 263 264 /** 265 * Register a callback to be invoked when the caller required to receive 266 * the result of asynchronous APIs. 267 * 268 * @param eventListener 269 */ 270 public synchronized void setOnEventListener(OnEventListener eventListener) { 271 if (null != eventListener) { 272 mOnEventListener = eventListener; 273 } 274 } 275 276 /** 277 * Register a callback to be invoked when the caller required to receive 278 * error result of asynchronous APIs. 279 * 280 * @param errorListener 281 */ 282 public synchronized void setOnErrorListener(OnErrorListener errorListener) { 283 if (null != errorListener) { 284 mOnErrorListener = errorListener; 285 } 286 } 287 288 /** 289 * Retrieves informations about all the plug-ins registered with DrmFramework. 290 * 291 * @return Array of DrmEngine plug-in strings 292 */ 293 public String[] getAvailableDrmEngines() { 294 DrmSupportInfo[] supportInfos = _getAllSupportInfo(mUniqueId); 295 ArrayList<String> descriptions = new ArrayList<String>(); 296 297 for (int i = 0; i < supportInfos.length; i++) { 298 descriptions.add(supportInfos[i].getDescriprition()); 299 } 300 301 String[] drmEngines = new String[descriptions.size()]; 302 return descriptions.toArray(drmEngines); 303 } 304 305 /** 306 * Get constraints information evaluated from DRM content 307 * 308 * @param path Content path from where DRM constraints would be retrieved. 309 * @param action Actions defined in {@link DrmStore.Action} 310 * @return ContentValues instance in which constraints key-value pairs are embedded 311 * or null in case of failure 312 */ 313 public ContentValues getConstraints(String path, int action) { 314 if (null == path || path.equals("") || !DrmStore.Action.isValid(action)) { 315 throw new IllegalArgumentException("Given usage or path is invalid/null"); 316 } 317 return _getConstraints(mUniqueId, path, action); 318 } 319 320 /** 321 * Get metadata information from DRM content 322 * 323 * @param path Content path from where DRM metadata would be retrieved. 324 * @return ContentValues instance in which metadata key-value pairs are embedded 325 * or null in case of failure 326 */ 327 public ContentValues getMetadata(String path) { 328 if (null == path || path.equals("")) { 329 throw new IllegalArgumentException("Given path is invalid/null"); 330 } 331 return _getMetadata(mUniqueId, path); 332 } 333 334 /** 335 * Get constraints information evaluated from DRM content 336 * 337 * @param uri Content URI from where DRM constraints would be retrieved. 338 * @param action Actions defined in {@link DrmStore.Action} 339 * @return ContentValues instance in which constraints key-value pairs are embedded 340 * or null in case of failure 341 */ 342 public ContentValues getConstraints(Uri uri, int action) { 343 if (null == uri || Uri.EMPTY == uri) { 344 throw new IllegalArgumentException("Uri should be non null"); 345 } 346 return getConstraints(convertUriToPath(uri), action); 347 } 348 349 /** 350 * Get metadata information from DRM content 351 * 352 * @param uri Content URI from where DRM metadata would be retrieved. 353 * @return ContentValues instance in which metadata key-value pairs are embedded 354 * or null in case of failure 355 */ 356 public ContentValues getMetadata(Uri uri) { 357 if (null == uri || Uri.EMPTY == uri) { 358 throw new IllegalArgumentException("Uri should be non null"); 359 } 360 return getMetadata(convertUriToPath(uri)); 361 } 362 363 /** 364 * Save DRM rights to specified rights path 365 * and make association with content path. 366 * 367 * <p class="note">In case of OMA or WM-DRM, rightsPath and contentPath could be null.</p> 368 * 369 * @param drmRights DrmRights to be saved 370 * @param rightsPath File path where rights to be saved 371 * @param contentPath File path where content was saved 372 * @return 373 * ERROR_NONE for success 374 * ERROR_UNKNOWN for failure 375 * @throws IOException if failed to save rights information in the given path 376 */ 377 public int saveRights( 378 DrmRights drmRights, String rightsPath, String contentPath) throws IOException { 379 if (null == drmRights || !drmRights.isValid()) { 380 throw new IllegalArgumentException("Given drmRights or contentPath is not valid"); 381 } 382 if (null != rightsPath && !rightsPath.equals("")) { 383 DrmUtils.writeToFile(rightsPath, drmRights.getData()); 384 } 385 return _saveRights(mUniqueId, drmRights, rightsPath, contentPath); 386 } 387 388 /** 389 * Install new DRM Engine Plug-in at the runtime 390 * 391 * @param engineFilePath Path of the plug-in file to be installed 392 * {@hide} 393 */ 394 public void installDrmEngine(String engineFilePath) { 395 if (null == engineFilePath || engineFilePath.equals("")) { 396 throw new IllegalArgumentException( 397 "Given engineFilePath: "+ engineFilePath + "is not valid"); 398 } 399 _installDrmEngine(mUniqueId, engineFilePath); 400 } 401 402 /** 403 * Check whether the given mimetype or path can be handled. 404 * 405 * @param path Path of the content to be handled 406 * @param mimeType Mimetype of the object to be handled 407 * @return 408 * true - if the given mimeType or path can be handled 409 * false - cannot be handled. 410 */ 411 public boolean canHandle(String path, String mimeType) { 412 if ((null == path || path.equals("")) && (null == mimeType || mimeType.equals(""))) { 413 throw new IllegalArgumentException("Path or the mimetype should be non null"); 414 } 415 return _canHandle(mUniqueId, path, mimeType); 416 } 417 418 /** 419 * Check whether the given mimetype or uri can be handled. 420 * 421 * @param uri Content URI of the data to be handled. 422 * @param mimeType Mimetype of the object to be handled 423 * @return 424 * true - if the given mimeType or path can be handled 425 * false - cannot be handled. 426 */ 427 public boolean canHandle(Uri uri, String mimeType) { 428 if ((null == uri || Uri.EMPTY == uri) && (null == mimeType || mimeType.equals(""))) { 429 throw new IllegalArgumentException("Uri or the mimetype should be non null"); 430 } 431 return canHandle(convertUriToPath(uri), mimeType); 432 } 433 434 /** 435 * Executes given drm information based on its type 436 * 437 * @param drmInfo Information needs to be processed 438 * @return 439 * ERROR_NONE for success 440 * ERROR_UNKNOWN for failure 441 */ 442 public int processDrmInfo(DrmInfo drmInfo) { 443 if (null == drmInfo || !drmInfo.isValid()) { 444 throw new IllegalArgumentException("Given drmInfo is invalid/null"); 445 } 446 int result = ERROR_UNKNOWN; 447 if (null != mEventHandler) { 448 Message msg = mEventHandler.obtainMessage(ACTION_PROCESS_DRM_INFO, drmInfo); 449 result = (mEventHandler.sendMessage(msg)) ? ERROR_NONE : result; 450 } 451 return result; 452 } 453 454 /** 455 * Retrieves necessary information for register, unregister or rights acquisition. 456 * 457 * @param drmInfoRequest Request information to retrieve drmInfo 458 * @return DrmInfo Instance as a result of processing given input 459 */ 460 public DrmInfo acquireDrmInfo(DrmInfoRequest drmInfoRequest) { 461 if (null == drmInfoRequest || !drmInfoRequest.isValid()) { 462 throw new IllegalArgumentException("Given drmInfoRequest is invalid/null"); 463 } 464 return _acquireDrmInfo(mUniqueId, drmInfoRequest); 465 } 466 467 /** 468 * Executes given DrmInfoRequest and returns the rights information asynchronously. 469 * This is a utility API which consists of {@link #acquireDrmInfo(DrmInfoRequest)} 470 * and {@link #processDrmInfo(DrmInfo)}. 471 * It can be used if selected DRM agent can work with this combined sequences. 472 * In case of some DRM schemes, such as OMA DRM, application needs to invoke 473 * {@link #acquireDrmInfo(DrmInfoRequest)} and {@link #processDrmInfo(DrmInfo)}, separately. 474 * 475 * @param drmInfoRequest Request information to retrieve drmInfo 476 * @return 477 * ERROR_NONE for success 478 * ERROR_UNKNOWN for failure 479 */ 480 public int acquireRights(DrmInfoRequest drmInfoRequest) { 481 DrmInfo drmInfo = acquireDrmInfo(drmInfoRequest); 482 return processDrmInfo(drmInfo); 483 } 484 485 /** 486 * Retrieves the type of the protected object (content, rights, etc..) 487 * using specified path or mimetype. At least one parameter should be non null 488 * to retrieve DRM object type 489 * 490 * @param path Path of the content or null. 491 * @param mimeType Mimetype of the content or null. 492 * @return Type of the DRM content. 493 * @see DrmStore.DrmObjectType 494 */ 495 public int getDrmObjectType(String path, String mimeType) { 496 if ((null == path || path.equals("")) && (null == mimeType || mimeType.equals(""))) { 497 throw new IllegalArgumentException("Path or the mimetype should be non null"); 498 } 499 return _getDrmObjectType(mUniqueId, path, mimeType); 500 } 501 502 /** 503 * Retrieves the type of the protected object (content, rights, etc..) 504 * using specified uri or mimetype. At least one parameter should be non null 505 * to retrieve DRM object type 506 * 507 * @param uri The content URI of the data 508 * @param mimeType Mimetype of the content or null. 509 * @return Type of the DRM content. 510 * @see DrmStore.DrmObjectType 511 */ 512 public int getDrmObjectType(Uri uri, String mimeType) { 513 if ((null == uri || Uri.EMPTY == uri) && (null == mimeType || mimeType.equals(""))) { 514 throw new IllegalArgumentException("Uri or the mimetype should be non null"); 515 } 516 String path = ""; 517 try { 518 path = convertUriToPath(uri); 519 } catch (Exception e) { 520 // Even uri is invalid the mimetype shall be valid, so allow to proceed further. 521 Log.w(TAG, "Given Uri could not be found in media store"); 522 } 523 return getDrmObjectType(path, mimeType); 524 } 525 526 /** 527 * Retrieves the mime type embedded inside the original content 528 * 529 * @param path Path of the protected content 530 * @return Mimetype of the original content, such as "video/mpeg" 531 */ 532 public String getOriginalMimeType(String path) { 533 if (null == path || path.equals("")) { 534 throw new IllegalArgumentException("Given path should be non null"); 535 } 536 return _getOriginalMimeType(mUniqueId, path); 537 } 538 539 /** 540 * Retrieves the mime type embedded inside the original content 541 * 542 * @param uri The content URI of the data 543 * @return Mimetype of the original content, such as "video/mpeg" 544 */ 545 public String getOriginalMimeType(Uri uri) { 546 if (null == uri || Uri.EMPTY == uri) { 547 throw new IllegalArgumentException("Given uri is not valid"); 548 } 549 return getOriginalMimeType(convertUriToPath(uri)); 550 } 551 552 /** 553 * Check whether the given content has valid rights or not 554 * 555 * @param path Path of the protected content 556 * @return Status of the rights for the protected content 557 * @see DrmStore.RightsStatus 558 */ 559 public int checkRightsStatus(String path) { 560 return checkRightsStatus(path, DrmStore.Action.DEFAULT); 561 } 562 563 /** 564 * Check whether the given content has valid rights or not 565 * 566 * @param uri The content URI of the data 567 * @return Status of the rights for the protected content 568 * @see DrmStore.RightsStatus 569 */ 570 public int checkRightsStatus(Uri uri) { 571 if (null == uri || Uri.EMPTY == uri) { 572 throw new IllegalArgumentException("Given uri is not valid"); 573 } 574 return checkRightsStatus(convertUriToPath(uri)); 575 } 576 577 /** 578 * Check whether the given content has valid rights or not for specified action. 579 * 580 * @param path Path of the protected content 581 * @param action Action to perform 582 * @return Status of the rights for the protected content 583 * @see DrmStore.RightsStatus 584 */ 585 public int checkRightsStatus(String path, int action) { 586 if (null == path || path.equals("") || !DrmStore.Action.isValid(action)) { 587 throw new IllegalArgumentException("Given path or action is not valid"); 588 } 589 return _checkRightsStatus(mUniqueId, path, action); 590 } 591 592 /** 593 * Check whether the given content has valid rights or not for specified action. 594 * 595 * @param uri The content URI of the data 596 * @param action Action to perform 597 * @return Status of the rights for the protected content 598 * @see DrmStore.RightsStatus 599 */ 600 public int checkRightsStatus(Uri uri, int action) { 601 if (null == uri || Uri.EMPTY == uri) { 602 throw new IllegalArgumentException("Given uri is not valid"); 603 } 604 return checkRightsStatus(convertUriToPath(uri), action); 605 } 606 607 /** 608 * Removes the rights associated with the given protected content 609 * 610 * @param path Path of the protected content 611 * @return 612 * ERROR_NONE for success 613 * ERROR_UNKNOWN for failure 614 */ 615 public int removeRights(String path) { 616 if (null == path || path.equals("")) { 617 throw new IllegalArgumentException("Given path should be non null"); 618 } 619 return _removeRights(mUniqueId, path); 620 } 621 622 /** 623 * Removes the rights associated with the given protected content 624 * 625 * @param uri The content URI of the data 626 * @return 627 * ERROR_NONE for success 628 * ERROR_UNKNOWN for failure 629 */ 630 public int removeRights(Uri uri) { 631 if (null == uri || Uri.EMPTY == uri) { 632 throw new IllegalArgumentException("Given uri is not valid"); 633 } 634 return removeRights(convertUriToPath(uri)); 635 } 636 637 /** 638 * Removes all the rights information of every plug-in associated with 639 * DRM framework. Will be used in master reset 640 * 641 * @return 642 * ERROR_NONE for success 643 * ERROR_UNKNOWN for failure 644 */ 645 public int removeAllRights() { 646 int result = ERROR_UNKNOWN; 647 if (null != mEventHandler) { 648 Message msg = mEventHandler.obtainMessage(ACTION_REMOVE_ALL_RIGHTS); 649 result = (mEventHandler.sendMessage(msg)) ? ERROR_NONE : result; 650 } 651 return result; 652 } 653 654 /** 655 * This API is for Forward Lock based DRM scheme. 656 * Each time the application tries to download a new DRM file 657 * which needs to be converted, then the application has to 658 * begin with calling this API. 659 * 660 * @param mimeType Description/MIME type of the input data packet 661 * @return convert ID which will be used for maintaining convert session. 662 */ 663 public int openConvertSession(String mimeType) { 664 if (null == mimeType || mimeType.equals("")) { 665 throw new IllegalArgumentException("Path or the mimeType should be non null"); 666 } 667 return _openConvertSession(mUniqueId, mimeType); 668 } 669 670 /** 671 * Accepts and converts the input data which is part of DRM file. 672 * The resultant converted data and the status is returned in the DrmConvertedInfo 673 * object. This method will be called each time there are new block 674 * of data received by the application. 675 * 676 * @param convertId Handle for the convert session 677 * @param inputData Input Data which need to be converted 678 * @return Return object contains the status of the data conversion, 679 * the output converted data and offset. In this case the 680 * application will ignore the offset information. 681 */ 682 public DrmConvertedStatus convertData(int convertId, byte[] inputData) { 683 if (null == inputData || 0 >= inputData.length) { 684 throw new IllegalArgumentException("Given inputData should be non null"); 685 } 686 return _convertData(mUniqueId, convertId, inputData); 687 } 688 689 /** 690 * Informs the Drm Agent when there is no more data which need to be converted 691 * or when an error occurs. Upon successful conversion of the complete data, 692 * the agent will inform that where the header and body signature 693 * should be added. This signature appending is needed to integrity 694 * protect the converted file. 695 * 696 * @param convertId Handle for the convert session 697 * @return Return object contains the status of the data conversion, 698 * the header and body signature data. It also informs 699 * the application on which offset these signature data should be appended. 700 */ 701 public DrmConvertedStatus closeConvertSession(int convertId) { 702 return _closeConvertSession(mUniqueId, convertId); 703 } 704 705 private int getEventType(int infoType) { 706 int eventType = -1; 707 708 switch (infoType) { 709 case DrmInfoRequest.TYPE_REGISTRATION_INFO: 710 case DrmInfoRequest.TYPE_UNREGISTRATION_INFO: 711 case DrmInfoRequest.TYPE_RIGHTS_ACQUISITION_INFO: 712 eventType = DrmEvent.TYPE_DRM_INFO_PROCESSED; 713 break; 714 } 715 return eventType; 716 } 717 718 private int getErrorType(int infoType) { 719 int error = -1; 720 721 switch (infoType) { 722 case DrmInfoRequest.TYPE_REGISTRATION_INFO: 723 case DrmInfoRequest.TYPE_UNREGISTRATION_INFO: 724 case DrmInfoRequest.TYPE_RIGHTS_ACQUISITION_INFO: 725 error = DrmErrorEvent.TYPE_PROCESS_DRM_INFO_FAILED; 726 break; 727 } 728 return error; 729 } 730 731 /** 732 * This method expects uri in the following format 733 * content://media/<table_name>/<row_index> (or) 734 * file://sdcard/test.mp4 735 * 736 * Here <table_name> shall be "video" or "audio" or "images" 737 * <row_index> the index of the content in given table 738 */ 739 private String convertUriToPath(Uri uri) { 740 String path = null; 741 if (null != uri) { 742 String scheme = uri.getScheme(); 743 if (null == scheme || scheme.equals("") || 744 scheme.equals(ContentResolver.SCHEME_FILE)) { 745 path = uri.getPath(); 746 } else if (scheme.equals(ContentResolver.SCHEME_CONTENT)) { 747 String[] projection = new String[] {MediaStore.MediaColumns.DATA}; 748 Cursor cursor = null; 749 try { 750 cursor = mContext.getContentResolver().query(uri, projection, null, 751 null, null); 752 if (null == cursor || 0 == cursor.getCount() || !cursor.moveToFirst()) { 753 throw new IllegalArgumentException("Given Uri could not be found" + 754 " in media store"); 755 } 756 int pathIndex = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATA); 757 path = cursor.getString(pathIndex); 758 } catch (SQLiteException e) { 759 throw new IllegalArgumentException("Given Uri is not formatted in a way " + 760 "so that it can be found in media store."); 761 } finally { 762 if (null != cursor) { 763 cursor.close(); 764 } 765 } 766 } else { 767 throw new IllegalArgumentException("Given Uri scheme is not supported"); 768 } 769 } 770 return path; 771 } 772 773 // private native interfaces 774 private native void _initialize(int uniqueId, Object weak_this); 775 776 private native void _finalize(int uniqueId); 777 778 private native void _installDrmEngine(int uniqueId, String engineFilepath); 779 780 private native ContentValues _getConstraints(int uniqueId, String path, int usage); 781 782 private native ContentValues _getMetadata(int uniqueId, String path); 783 784 private native boolean _canHandle(int uniqueId, String path, String mimeType); 785 786 private native DrmInfoStatus _processDrmInfo(int uniqueId, DrmInfo drmInfo); 787 788 private native DrmInfo _acquireDrmInfo(int uniqueId, DrmInfoRequest drmInfoRequest); 789 790 private native int _saveRights( 791 int uniqueId, DrmRights drmRights, String rightsPath, String contentPath); 792 793 private native int _getDrmObjectType(int uniqueId, String path, String mimeType); 794 795 private native String _getOriginalMimeType(int uniqueId, String path); 796 797 private native int _checkRightsStatus(int uniqueId, String path, int action); 798 799 private native int _removeRights(int uniqueId, String path); 800 801 private native int _removeAllRights(int uniqueId); 802 803 private native int _openConvertSession(int uniqueId, String mimeType); 804 805 private native DrmConvertedStatus _convertData( 806 int uniqueId, int convertId, byte[] inputData); 807 808 private native DrmConvertedStatus _closeConvertSession(int uniqueId, int convertId); 809 810 private native DrmSupportInfo[] _getAllSupportInfo(int uniqueId); 811} 812 813