DrmManager.cpp revision bf5b3b29e31b293313788d7464cfb258ac0da803
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 17//#define LOG_NDEBUG 0 18#define LOG_TAG "DrmManager(Native)" 19#include "utils/Log.h" 20 21#include <utils/String8.h> 22#include <drm/DrmInfo.h> 23#include <drm/DrmInfoEvent.h> 24#include <drm/DrmRights.h> 25#include <drm/DrmConstraints.h> 26#include <drm/DrmMetadata.h> 27#include <drm/DrmInfoStatus.h> 28#include <drm/DrmInfoRequest.h> 29#include <drm/DrmSupportInfo.h> 30#include <drm/DrmConvertedStatus.h> 31#include <IDrmEngine.h> 32 33#include "DrmManager.h" 34#include "ReadWriteUtils.h" 35 36#define DECRYPT_FILE_ERROR -1 37 38using namespace android; 39 40const String8 DrmManager::EMPTY_STRING(""); 41 42DrmManager::DrmManager() : 43 mDecryptSessionId(0), 44 mConvertId(0) { 45 46} 47 48DrmManager::~DrmManager() { 49 50} 51 52int DrmManager::addUniqueId(bool isNative) { 53 Mutex::Autolock _l(mLock); 54 55 int temp = 0; 56 bool foundUniqueId = false; 57 const int size = mUniqueIdVector.size(); 58 const int uniqueIdRange = 0xfff; 59 int maxLoopTimes = (uniqueIdRange - 1) / 2; 60 srand(time(NULL)); 61 62 while (!foundUniqueId) { 63 temp = rand() & uniqueIdRange; 64 65 if (isNative) { 66 // set a flag to differentiate DrmManagerClient 67 // created from native side and java side 68 temp |= 0x1000; 69 } 70 71 int index = 0; 72 for (; index < size; ++index) { 73 if (mUniqueIdVector.itemAt(index) == temp) { 74 foundUniqueId = false; 75 break; 76 } 77 } 78 if (index == size) { 79 foundUniqueId = true; 80 } 81 82 maxLoopTimes --; 83 LOG_FATAL_IF(maxLoopTimes <= 0, "cannot find an unique ID for this session"); 84 } 85 86 mUniqueIdVector.push(temp); 87 return temp; 88} 89 90void DrmManager::removeUniqueId(int uniqueId) { 91 Mutex::Autolock _l(mLock); 92 for (unsigned int i = 0; i < mUniqueIdVector.size(); i++) { 93 if (uniqueId == mUniqueIdVector.itemAt(i)) { 94 mUniqueIdVector.removeAt(i); 95 break; 96 } 97 } 98} 99 100status_t DrmManager::loadPlugIns() { 101 102 String8 vendorPluginDirPath("/vendor/lib/drm"); 103 loadPlugIns(vendorPluginDirPath); 104 105 String8 pluginDirPath("/system/lib/drm"); 106 loadPlugIns(pluginDirPath); 107 return DRM_NO_ERROR; 108 109} 110 111status_t DrmManager::loadPlugIns(const String8& plugInDirPath) { 112 mPlugInManager.loadPlugIns(plugInDirPath); 113 Vector<String8> plugInPathList = mPlugInManager.getPlugInIdList(); 114 for (unsigned int i = 0; i < plugInPathList.size(); ++i) { 115 String8 plugInPath = plugInPathList[i]; 116 DrmSupportInfo* info = mPlugInManager.getPlugIn(plugInPath).getSupportInfo(0); 117 if (NULL != info) { 118 if (mSupportInfoToPlugInIdMap.indexOfKey(*info) < 0) { 119 mSupportInfoToPlugInIdMap.add(*info, plugInPath); 120 } 121 delete info; 122 } 123 } 124 return DRM_NO_ERROR; 125} 126 127status_t DrmManager::unloadPlugIns() { 128 Mutex::Autolock _l(mLock); 129 mConvertSessionMap.clear(); 130 mDecryptSessionMap.clear(); 131 mPlugInManager.unloadPlugIns(); 132 mSupportInfoToPlugInIdMap.clear(); 133 return DRM_NO_ERROR; 134} 135 136status_t DrmManager::setDrmServiceListener( 137 int uniqueId, const sp<IDrmServiceListener>& drmServiceListener) { 138 Mutex::Autolock _l(mListenerLock); 139 if (NULL != drmServiceListener.get()) { 140 mServiceListeners.add(uniqueId, drmServiceListener); 141 } else { 142 mServiceListeners.removeItem(uniqueId); 143 } 144 return DRM_NO_ERROR; 145} 146 147void DrmManager::addClient(int uniqueId) { 148 Mutex::Autolock _l(mLock); 149 if (!mSupportInfoToPlugInIdMap.isEmpty()) { 150 Vector<String8> plugInIdList = mPlugInManager.getPlugInIdList(); 151 for (unsigned int index = 0; index < plugInIdList.size(); index++) { 152 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInIdList.itemAt(index)); 153 rDrmEngine.initialize(uniqueId); 154 rDrmEngine.setOnInfoListener(uniqueId, this); 155 } 156 } 157} 158 159void DrmManager::removeClient(int uniqueId) { 160 Mutex::Autolock _l(mLock); 161 Vector<String8> plugInIdList = mPlugInManager.getPlugInIdList(); 162 for (unsigned int index = 0; index < plugInIdList.size(); index++) { 163 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInIdList.itemAt(index)); 164 rDrmEngine.terminate(uniqueId); 165 } 166} 167 168DrmConstraints* DrmManager::getConstraints(int uniqueId, const String8* path, const int action) { 169 Mutex::Autolock _l(mLock); 170 const String8 plugInId = getSupportedPlugInIdFromPath(uniqueId, *path); 171 if (EMPTY_STRING != plugInId) { 172 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 173 return rDrmEngine.getConstraints(uniqueId, path, action); 174 } 175 return NULL; 176} 177 178DrmMetadata* DrmManager::getMetadata(int uniqueId, const String8* path) { 179 Mutex::Autolock _l(mLock); 180 const String8 plugInId = getSupportedPlugInIdFromPath(uniqueId, *path); 181 if (EMPTY_STRING != plugInId) { 182 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 183 return rDrmEngine.getMetadata(uniqueId, path); 184 } 185 return NULL; 186} 187 188status_t DrmManager::installDrmEngine(int uniqueId, const String8& absolutePath) { 189 Mutex::Autolock _l(mLock); 190 mPlugInManager.loadPlugIn(absolutePath); 191 192 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(absolutePath); 193 rDrmEngine.initialize(uniqueId); 194 rDrmEngine.setOnInfoListener(uniqueId, this); 195 196 DrmSupportInfo* info = rDrmEngine.getSupportInfo(0); 197 mSupportInfoToPlugInIdMap.add(*info, absolutePath); 198 delete info; 199 200 return DRM_NO_ERROR; 201} 202 203bool DrmManager::canHandle(int uniqueId, const String8& path, const String8& mimeType) { 204 Mutex::Autolock _l(mLock); 205 const String8 plugInId = getSupportedPlugInId(mimeType); 206 bool result = (EMPTY_STRING != plugInId) ? true : false; 207 208 if (0 < path.length()) { 209 if (result) { 210 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 211 result = rDrmEngine.canHandle(uniqueId, path); 212 } else { 213 String8 extension = path.getPathExtension(); 214 if (String8("") != extension) { 215 result = canHandle(uniqueId, path); 216 } 217 } 218 } 219 return result; 220} 221 222DrmInfoStatus* DrmManager::processDrmInfo(int uniqueId, const DrmInfo* drmInfo) { 223 Mutex::Autolock _l(mLock); 224 const String8 plugInId = getSupportedPlugInId(drmInfo->getMimeType()); 225 if (EMPTY_STRING != plugInId) { 226 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 227 return rDrmEngine.processDrmInfo(uniqueId, drmInfo); 228 } 229 return NULL; 230} 231 232bool DrmManager::canHandle(int uniqueId, const String8& path) { 233 bool result = false; 234 Vector<String8> plugInPathList = mPlugInManager.getPlugInIdList(); 235 236 for (unsigned int i = 0; i < plugInPathList.size(); ++i) { 237 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInPathList[i]); 238 result = rDrmEngine.canHandle(uniqueId, path); 239 240 if (result) { 241 break; 242 } 243 } 244 return result; 245} 246 247DrmInfo* DrmManager::acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) { 248 Mutex::Autolock _l(mLock); 249 const String8 plugInId = getSupportedPlugInId(drmInfoRequest->getMimeType()); 250 if (EMPTY_STRING != plugInId) { 251 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 252 return rDrmEngine.acquireDrmInfo(uniqueId, drmInfoRequest); 253 } 254 return NULL; 255} 256 257status_t DrmManager::saveRights(int uniqueId, const DrmRights& drmRights, 258 const String8& rightsPath, const String8& contentPath) { 259 Mutex::Autolock _l(mLock); 260 const String8 plugInId = getSupportedPlugInId(drmRights.getMimeType()); 261 status_t result = DRM_ERROR_UNKNOWN; 262 if (EMPTY_STRING != plugInId) { 263 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 264 result = rDrmEngine.saveRights(uniqueId, drmRights, rightsPath, contentPath); 265 } 266 return result; 267} 268 269String8 DrmManager::getOriginalMimeType(int uniqueId, const String8& path, int fd) { 270 Mutex::Autolock _l(mLock); 271 const String8 plugInId = getSupportedPlugInIdFromPath(uniqueId, path); 272 if (EMPTY_STRING != plugInId) { 273 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 274 return rDrmEngine.getOriginalMimeType(uniqueId, path, fd); 275 } 276 return EMPTY_STRING; 277} 278 279int DrmManager::getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType) { 280 Mutex::Autolock _l(mLock); 281 const String8 plugInId = getSupportedPlugInId(uniqueId, path, mimeType); 282 if (EMPTY_STRING != plugInId) { 283 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 284 return rDrmEngine.getDrmObjectType(uniqueId, path, mimeType); 285 } 286 return DrmObjectType::UNKNOWN; 287} 288 289int DrmManager::checkRightsStatus(int uniqueId, const String8& path, int action) { 290 Mutex::Autolock _l(mLock); 291 const String8 plugInId = getSupportedPlugInIdFromPath(uniqueId, path); 292 if (EMPTY_STRING != plugInId) { 293 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 294 return rDrmEngine.checkRightsStatus(uniqueId, path, action); 295 } 296 return RightsStatus::RIGHTS_INVALID; 297} 298 299status_t DrmManager::consumeRights( 300 int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve) { 301 status_t result = DRM_ERROR_UNKNOWN; 302 Mutex::Autolock _l(mDecryptLock); 303 if (mDecryptSessionMap.indexOfKey(decryptHandle->decryptId) != NAME_NOT_FOUND) { 304 IDrmEngine* drmEngine = mDecryptSessionMap.valueFor(decryptHandle->decryptId); 305 result = drmEngine->consumeRights(uniqueId, decryptHandle, action, reserve); 306 } 307 return result; 308} 309 310status_t DrmManager::setPlaybackStatus( 311 int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position) { 312 status_t result = DRM_ERROR_UNKNOWN; 313 Mutex::Autolock _l(mDecryptLock); 314 if (mDecryptSessionMap.indexOfKey(decryptHandle->decryptId) != NAME_NOT_FOUND) { 315 IDrmEngine* drmEngine = mDecryptSessionMap.valueFor(decryptHandle->decryptId); 316 result = drmEngine->setPlaybackStatus(uniqueId, decryptHandle, playbackStatus, position); 317 } 318 return result; 319} 320 321bool DrmManager::validateAction( 322 int uniqueId, const String8& path, int action, const ActionDescription& description) { 323 Mutex::Autolock _l(mLock); 324 const String8 plugInId = getSupportedPlugInIdFromPath(uniqueId, path); 325 if (EMPTY_STRING != plugInId) { 326 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 327 return rDrmEngine.validateAction(uniqueId, path, action, description); 328 } 329 return false; 330} 331 332status_t DrmManager::removeRights(int uniqueId, const String8& path) { 333 Mutex::Autolock _l(mLock); 334 const String8 plugInId = getSupportedPlugInIdFromPath(uniqueId, path); 335 status_t result = DRM_ERROR_UNKNOWN; 336 if (EMPTY_STRING != plugInId) { 337 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 338 result = rDrmEngine.removeRights(uniqueId, path); 339 } 340 return result; 341} 342 343status_t DrmManager::removeAllRights(int uniqueId) { 344 Vector<String8> plugInIdList = mPlugInManager.getPlugInIdList(); 345 status_t result = DRM_ERROR_UNKNOWN; 346 for (unsigned int index = 0; index < plugInIdList.size(); index++) { 347 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInIdList.itemAt(index)); 348 result = rDrmEngine.removeAllRights(uniqueId); 349 if (DRM_NO_ERROR != result) { 350 break; 351 } 352 } 353 return result; 354} 355 356int DrmManager::openConvertSession(int uniqueId, const String8& mimeType) { 357 Mutex::Autolock _l(mConvertLock); 358 int convertId = -1; 359 360 const String8 plugInId = getSupportedPlugInId(mimeType); 361 if (EMPTY_STRING != plugInId) { 362 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 363 364 if (DRM_NO_ERROR == rDrmEngine.openConvertSession(uniqueId, mConvertId + 1)) { 365 ++mConvertId; 366 convertId = mConvertId; 367 mConvertSessionMap.add(convertId, &rDrmEngine); 368 } 369 } 370 return convertId; 371} 372 373DrmConvertedStatus* DrmManager::convertData( 374 int uniqueId, int convertId, const DrmBuffer* inputData) { 375 DrmConvertedStatus *drmConvertedStatus = NULL; 376 377 Mutex::Autolock _l(mConvertLock); 378 if (mConvertSessionMap.indexOfKey(convertId) != NAME_NOT_FOUND) { 379 IDrmEngine* drmEngine = mConvertSessionMap.valueFor(convertId); 380 drmConvertedStatus = drmEngine->convertData(uniqueId, convertId, inputData); 381 } 382 return drmConvertedStatus; 383} 384 385DrmConvertedStatus* DrmManager::closeConvertSession(int uniqueId, int convertId) { 386 Mutex::Autolock _l(mConvertLock); 387 DrmConvertedStatus *drmConvertedStatus = NULL; 388 389 if (mConvertSessionMap.indexOfKey(convertId) != NAME_NOT_FOUND) { 390 IDrmEngine* drmEngine = mConvertSessionMap.valueFor(convertId); 391 drmConvertedStatus = drmEngine->closeConvertSession(uniqueId, convertId); 392 mConvertSessionMap.removeItem(convertId); 393 } 394 return drmConvertedStatus; 395} 396 397status_t DrmManager::getAllSupportInfo( 398 int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) { 399 Mutex::Autolock _l(mLock); 400 Vector<String8> plugInPathList = mPlugInManager.getPlugInIdList(); 401 int size = plugInPathList.size(); 402 int validPlugins = 0; 403 404 if (0 < size) { 405 Vector<DrmSupportInfo> drmSupportInfoList; 406 407 for (int i = 0; i < size; ++i) { 408 String8 plugInPath = plugInPathList[i]; 409 DrmSupportInfo* drmSupportInfo 410 = mPlugInManager.getPlugIn(plugInPath).getSupportInfo(0); 411 if (NULL != drmSupportInfo) { 412 drmSupportInfoList.add(*drmSupportInfo); 413 delete drmSupportInfo; drmSupportInfo = NULL; 414 } 415 } 416 417 validPlugins = drmSupportInfoList.size(); 418 if (0 < validPlugins) { 419 *drmSupportInfoArray = new DrmSupportInfo[validPlugins]; 420 for (int i = 0; i < validPlugins; ++i) { 421 (*drmSupportInfoArray)[i] = drmSupportInfoList[i]; 422 } 423 } 424 } 425 *length = validPlugins; 426 return DRM_NO_ERROR; 427} 428 429DecryptHandle* DrmManager::openDecryptSession( 430 int uniqueId, int fd, off64_t offset, off64_t length, const char* mime) { 431 432 Mutex::Autolock _l(mDecryptLock); 433 status_t result = DRM_ERROR_CANNOT_HANDLE; 434 Vector<String8> plugInIdList = mPlugInManager.getPlugInIdList(); 435 436 DecryptHandle* handle = new DecryptHandle(); 437 if (NULL != handle) { 438 handle->decryptId = mDecryptSessionId + 1; 439 440 for (unsigned int index = 0; index < plugInIdList.size(); index++) { 441 String8 plugInId = plugInIdList.itemAt(index); 442 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 443 result = rDrmEngine.openDecryptSession(uniqueId, handle, fd, offset, length, mime); 444 445 if (DRM_NO_ERROR == result) { 446 ++mDecryptSessionId; 447 mDecryptSessionMap.add(mDecryptSessionId, &rDrmEngine); 448 break; 449 } 450 } 451 } 452 if (DRM_NO_ERROR != result) { 453 delete handle; handle = NULL; 454 } 455 return handle; 456} 457 458DecryptHandle* DrmManager::openDecryptSession( 459 int uniqueId, const char* uri, const char* mime) { 460 Mutex::Autolock _l(mDecryptLock); 461 status_t result = DRM_ERROR_CANNOT_HANDLE; 462 Vector<String8> plugInIdList = mPlugInManager.getPlugInIdList(); 463 464 DecryptHandle* handle = new DecryptHandle(); 465 if (NULL != handle) { 466 handle->decryptId = mDecryptSessionId + 1; 467 468 for (unsigned int index = 0; index < plugInIdList.size(); index++) { 469 String8 plugInId = plugInIdList.itemAt(index); 470 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 471 result = rDrmEngine.openDecryptSession(uniqueId, handle, uri, mime); 472 473 if (DRM_NO_ERROR == result) { 474 ++mDecryptSessionId; 475 mDecryptSessionMap.add(mDecryptSessionId, &rDrmEngine); 476 break; 477 } 478 } 479 } 480 if (DRM_NO_ERROR != result) { 481 delete handle; handle = NULL; 482 ALOGV("DrmManager::openDecryptSession: no capable plug-in found"); 483 } 484 return handle; 485} 486 487DecryptHandle* DrmManager::openDecryptSession( 488 int uniqueId, const DrmBuffer& buf, const String8& mimeType) { 489 Mutex::Autolock _l(mDecryptLock); 490 status_t result = DRM_ERROR_CANNOT_HANDLE; 491 Vector<String8> plugInIdList = mPlugInManager.getPlugInIdList(); 492 493 DecryptHandle* handle = new DecryptHandle(); 494 if (NULL != handle) { 495 handle->decryptId = mDecryptSessionId + 1; 496 497 for (size_t index = 0; index < plugInIdList.size(); index++) { 498 String8 plugInId = plugInIdList.itemAt(index); 499 IDrmEngine& rDrmEngine = mPlugInManager.getPlugIn(plugInId); 500 result = rDrmEngine.openDecryptSession(uniqueId, handle, buf, mimeType); 501 502 if (DRM_NO_ERROR == result) { 503 ++mDecryptSessionId; 504 mDecryptSessionMap.add(mDecryptSessionId, &rDrmEngine); 505 break; 506 } 507 } 508 } 509 if (DRM_NO_ERROR != result) { 510 delete handle; 511 handle = NULL; 512 ALOGV("DrmManager::openDecryptSession: no capable plug-in found"); 513 } 514 return handle; 515} 516 517status_t DrmManager::closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) { 518 Mutex::Autolock _l(mDecryptLock); 519 status_t result = DRM_ERROR_UNKNOWN; 520 if (mDecryptSessionMap.indexOfKey(decryptHandle->decryptId) != NAME_NOT_FOUND) { 521 IDrmEngine* drmEngine = mDecryptSessionMap.valueFor(decryptHandle->decryptId); 522 result = drmEngine->closeDecryptSession(uniqueId, decryptHandle); 523 if (DRM_NO_ERROR == result) { 524 mDecryptSessionMap.removeItem(decryptHandle->decryptId); 525 } 526 } 527 return result; 528} 529 530status_t DrmManager::initializeDecryptUnit( 531 int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId, const DrmBuffer* headerInfo) { 532 status_t result = DRM_ERROR_UNKNOWN; 533 Mutex::Autolock _l(mDecryptLock); 534 if (mDecryptSessionMap.indexOfKey(decryptHandle->decryptId) != NAME_NOT_FOUND) { 535 IDrmEngine* drmEngine = mDecryptSessionMap.valueFor(decryptHandle->decryptId); 536 result = drmEngine->initializeDecryptUnit(uniqueId, decryptHandle, decryptUnitId, headerInfo); 537 } 538 return result; 539} 540 541status_t DrmManager::decrypt(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId, 542 const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) { 543 status_t result = DRM_ERROR_UNKNOWN; 544 545 Mutex::Autolock _l(mDecryptLock); 546 if (mDecryptSessionMap.indexOfKey(decryptHandle->decryptId) != NAME_NOT_FOUND) { 547 IDrmEngine* drmEngine = mDecryptSessionMap.valueFor(decryptHandle->decryptId); 548 result = drmEngine->decrypt( 549 uniqueId, decryptHandle, decryptUnitId, encBuffer, decBuffer, IV); 550 } 551 return result; 552} 553 554status_t DrmManager::finalizeDecryptUnit( 555 int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) { 556 status_t result = DRM_ERROR_UNKNOWN; 557 Mutex::Autolock _l(mDecryptLock); 558 if (mDecryptSessionMap.indexOfKey(decryptHandle->decryptId) != NAME_NOT_FOUND) { 559 IDrmEngine* drmEngine = mDecryptSessionMap.valueFor(decryptHandle->decryptId); 560 result = drmEngine->finalizeDecryptUnit(uniqueId, decryptHandle, decryptUnitId); 561 } 562 return result; 563} 564 565ssize_t DrmManager::pread(int uniqueId, DecryptHandle* decryptHandle, 566 void* buffer, ssize_t numBytes, off64_t offset) { 567 ssize_t result = DECRYPT_FILE_ERROR; 568 569 Mutex::Autolock _l(mDecryptLock); 570 if (mDecryptSessionMap.indexOfKey(decryptHandle->decryptId) != NAME_NOT_FOUND) { 571 IDrmEngine* drmEngine = mDecryptSessionMap.valueFor(decryptHandle->decryptId); 572 result = drmEngine->pread(uniqueId, decryptHandle, buffer, numBytes, offset); 573 } 574 return result; 575} 576 577String8 DrmManager::getSupportedPlugInId( 578 int uniqueId, const String8& path, const String8& mimeType) { 579 String8 plugInId(""); 580 581 if (EMPTY_STRING != mimeType) { 582 plugInId = getSupportedPlugInId(mimeType); 583 } else { 584 plugInId = getSupportedPlugInIdFromPath(uniqueId, path); 585 } 586 return plugInId; 587} 588 589String8 DrmManager::getSupportedPlugInId(const String8& mimeType) { 590 String8 plugInId(""); 591 592 if (EMPTY_STRING != mimeType) { 593 for (unsigned int index = 0; index < mSupportInfoToPlugInIdMap.size(); index++) { 594 const DrmSupportInfo& drmSupportInfo = mSupportInfoToPlugInIdMap.keyAt(index); 595 596 if (drmSupportInfo.isSupportedMimeType(mimeType)) { 597 plugInId = mSupportInfoToPlugInIdMap.valueFor(drmSupportInfo); 598 break; 599 } 600 } 601 } 602 return plugInId; 603} 604 605String8 DrmManager::getSupportedPlugInIdFromPath(int uniqueId, const String8& path) { 606 String8 plugInId(""); 607 const String8 fileSuffix = path.getPathExtension(); 608 609 for (unsigned int index = 0; index < mSupportInfoToPlugInIdMap.size(); index++) { 610 const DrmSupportInfo& drmSupportInfo = mSupportInfoToPlugInIdMap.keyAt(index); 611 612 if (drmSupportInfo.isSupportedFileSuffix(fileSuffix)) { 613 String8 key = mSupportInfoToPlugInIdMap.valueFor(drmSupportInfo); 614 IDrmEngine& drmEngine = mPlugInManager.getPlugIn(key); 615 616 if (drmEngine.canHandle(uniqueId, path)) { 617 plugInId = key; 618 break; 619 } 620 } 621 } 622 return plugInId; 623} 624 625void DrmManager::onInfo(const DrmInfoEvent& event) { 626 Mutex::Autolock _l(mListenerLock); 627 for (unsigned int index = 0; index < mServiceListeners.size(); index++) { 628 int uniqueId = mServiceListeners.keyAt(index); 629 630 if (uniqueId == event.getUniqueId()) { 631 sp<IDrmServiceListener> serviceListener = mServiceListeners.valueFor(uniqueId); 632 serviceListener->notify(event); 633 } 634 } 635} 636 637