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      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 "android_drm_DrmManagerClient"
     19 #include <utils/Log.h>
     20 
     21 #include <jni.h>
     22 #include <JNIHelp.h>
     23 #include <ScopedLocalRef.h>
     24 #include <android_runtime/AndroidRuntime.h>
     25 
     26 #include <drm/DrmInfo.h>
     27 #include <drm/DrmRights.h>
     28 #include <drm/DrmInfoEvent.h>
     29 #include <drm/DrmInfoStatus.h>
     30 #include <drm/DrmInfoRequest.h>
     31 #include <drm/DrmSupportInfo.h>
     32 #include <drm/DrmConstraints.h>
     33 #include <drm/DrmMetadata.h>
     34 #include <drm/DrmConvertedStatus.h>
     35 #include <drm/drm_framework_common.h>
     36 
     37 #include <DrmManagerClientImpl.h>
     38 
     39 using namespace android;
     40 
     41 /**
     42  * Utility class used to extract the value from the provided java object.
     43  * May need to add some utility function to create java object.
     44  */
     45 class Utility {
     46 public:
     47     static String8 getStringValue(JNIEnv* env, jobject object, const char* fieldName);
     48 
     49     static char* getByteArrayValue(
     50             JNIEnv* env, jobject object, const char* fieldName, int* dataLength);
     51 
     52     static char* getByteArrayValue(
     53             JNIEnv* env, jbyteArray byteArray, int* dataLength);
     54 
     55     static String8 getStringValue(JNIEnv* env, jstring string);
     56 
     57     static int getIntValue(JNIEnv* env, jobject object, const char* fieldName);
     58 };
     59 
     60 String8 Utility::getStringValue(JNIEnv* env, jobject object, const char* fieldName) {
     61     /* Look for the instance field with the name fieldName */
     62     jfieldID fieldID
     63         = env->GetFieldID(env->GetObjectClass(object), fieldName , "Ljava/lang/String;");
     64 
     65     if (NULL != fieldID) {
     66         jstring valueString = (jstring) env->GetObjectField(object, fieldID);
     67         return Utility::getStringValue(env, valueString);
     68     }
     69 
     70     String8 dataString("");
     71     return dataString;
     72 }
     73 
     74 String8 Utility::getStringValue(JNIEnv* env, jstring string) {
     75     String8 dataString("");
     76 
     77     if (NULL != string && string != env->NewStringUTF("")) {
     78         char* bytes = const_cast< char* > (env->GetStringUTFChars(string, NULL));
     79 
     80         const int length = strlen(bytes) + 1;
     81         char *data = new char[length];
     82         strncpy(data, bytes, length);
     83         dataString = String8(data);
     84 
     85         env->ReleaseStringUTFChars(string, bytes);
     86         delete [] data; data = NULL;
     87     }
     88     return dataString;
     89 }
     90 
     91 char* Utility::getByteArrayValue(
     92             JNIEnv* env, jobject object, const char* fieldName, int* dataLength) {
     93 
     94     *dataLength = 0;
     95 
     96     jfieldID fieldID = env->GetFieldID(env->GetObjectClass(object), fieldName , "[B");
     97 
     98     if (NULL != fieldID) {
     99         jbyteArray byteArray = (jbyteArray) env->GetObjectField(object, fieldID);
    100         return Utility::getByteArrayValue(env, byteArray, dataLength);
    101     }
    102     return NULL;
    103 }
    104 
    105 char* Utility::getByteArrayValue(JNIEnv* env, jbyteArray byteArray, int* dataLength) {
    106     char* data = NULL;
    107     if (NULL != byteArray) {
    108         jint length = env->GetArrayLength(byteArray);
    109 
    110         *dataLength = length;
    111         if (0 < *dataLength) {
    112             data = new char[length];
    113             env->GetByteArrayRegion(byteArray, (jint)0, length, (jbyte *) data);
    114         }
    115     }
    116     return data;
    117 }
    118 
    119 int Utility::getIntValue(JNIEnv* env, jobject object, const char* fieldName) {
    120     jfieldID fieldID;
    121     int intValue = -1;
    122 
    123     /* Get a reference to objs class */
    124     jclass clazz = env->GetObjectClass(object);
    125     /* Look for the instance field with the name fieldName */
    126     fieldID = env->GetFieldID(clazz, fieldName , "I");
    127 
    128     if (NULL != fieldID) {
    129         intValue = (int) env->GetIntField(object, fieldID);
    130     }
    131 
    132     return intValue;
    133 }
    134 
    135 class JNIOnInfoListener : public DrmManagerClient::OnInfoListener {
    136 public:
    137     JNIOnInfoListener(JNIEnv* env, jobject thiz, jobject weak_thiz);
    138 
    139     virtual ~JNIOnInfoListener();
    140     void onInfo(const DrmInfoEvent& event);
    141 
    142 private:
    143     JNIOnInfoListener();
    144     jclass mClass;
    145     jobject mObject;
    146 };
    147 
    148 JNIOnInfoListener::JNIOnInfoListener(JNIEnv* env, jobject thiz, jobject weak_thiz) {
    149     jclass clazz = env->GetObjectClass(thiz);
    150 
    151     if (clazz == NULL) {
    152         ALOGE("Can't find android/drm/DrmManagerClient");
    153         jniThrowException(env, "java/lang/Exception", NULL);
    154         return;
    155     }
    156     mClass = (jclass)env->NewGlobalRef(clazz);
    157     mObject  = env->NewGlobalRef(weak_thiz);
    158 }
    159 
    160 JNIOnInfoListener::~JNIOnInfoListener() {
    161     JNIEnv *env = AndroidRuntime::getJNIEnv();
    162     env->DeleteGlobalRef(mObject);
    163     env->DeleteGlobalRef(mClass);
    164 }
    165 
    166 void JNIOnInfoListener::onInfo(const DrmInfoEvent& event) {
    167     jint uniqueId = event.getUniqueId();
    168     jint type = event.getType();
    169     JNIEnv *env = AndroidRuntime::getJNIEnv();
    170     jstring message = env->NewStringUTF(event.getMessage().string());
    171     ALOGV("JNIOnInfoListener::onInfo => %d | %d | %s", uniqueId, type, event.getMessage().string());
    172 
    173     env->CallStaticVoidMethod(
    174             mClass,
    175             env->GetStaticMethodID(mClass, "notify", "(Ljava/lang/Object;IILjava/lang/String;)V"),
    176             mObject, uniqueId, type, message);
    177 }
    178 
    179 static Mutex sLock;
    180 
    181 static sp<DrmManagerClientImpl> setDrmManagerClientImpl(
    182             JNIEnv* env, jobject thiz, const sp<DrmManagerClientImpl>& client) {
    183     Mutex::Autolock l(sLock);
    184     jclass clazz = env->FindClass("android/drm/DrmManagerClient");
    185     jfieldID fieldId = env->GetFieldID(clazz, "mNativeContext", "J");
    186 
    187     jlong oldHandle = env->GetLongField(thiz, fieldId);
    188     sp<DrmManagerClientImpl> old = reinterpret_cast<DrmManagerClientImpl*>(oldHandle);
    189     if (client.get()) {
    190         client->incStrong(thiz);
    191     }
    192     if (old != 0) {
    193         old->decStrong(thiz);
    194     }
    195     env->SetLongField(thiz, fieldId, reinterpret_cast<jlong>(client.get()));
    196     return old;
    197 }
    198 
    199 static sp<DrmManagerClientImpl> getDrmManagerClientImpl(JNIEnv* env, jobject thiz) {
    200     Mutex::Autolock l(sLock);
    201     jclass clazz = env->FindClass("android/drm/DrmManagerClient");
    202     jfieldID fieldId = env->GetFieldID(clazz, "mNativeContext", "J");
    203 
    204     jlong clientHandle = env->GetLongField(thiz, fieldId);
    205     DrmManagerClientImpl* const client = reinterpret_cast<DrmManagerClientImpl*>(clientHandle);
    206     return sp<DrmManagerClientImpl>(client);
    207 }
    208 
    209 static jint android_drm_DrmManagerClient_initialize(
    210         JNIEnv* env, jobject thiz) {
    211     ALOGV("initialize - Enter");
    212 
    213     int uniqueId = 0;
    214     sp<DrmManagerClientImpl> drmManager = DrmManagerClientImpl::create(&uniqueId, false);
    215     drmManager->addClient(uniqueId);
    216 
    217     setDrmManagerClientImpl(env, thiz, drmManager);
    218     ALOGV("initialize - Exit");
    219     return static_cast<jint>(uniqueId);
    220 }
    221 
    222 static void android_drm_DrmManagerClient_setListeners(
    223         JNIEnv* env, jobject thiz, jint uniqueId, jobject weak_thiz) {
    224     ALOGV("setListeners - Enter");
    225 
    226     // Set the listener to DrmManager
    227     sp<DrmManagerClient::OnInfoListener> listener = new JNIOnInfoListener(env, thiz, weak_thiz);
    228     getDrmManagerClientImpl(env, thiz)->setOnInfoListener(uniqueId, listener);
    229 
    230     ALOGV("setListeners - Exit");
    231 }
    232 
    233 static void android_drm_DrmManagerClient_release(
    234         JNIEnv* env, jobject thiz, jint uniqueId) {
    235     ALOGV("release - Enter");
    236     getDrmManagerClientImpl(env, thiz)->remove(uniqueId);
    237     getDrmManagerClientImpl(env, thiz)->setOnInfoListener(uniqueId, NULL);
    238 
    239     sp<DrmManagerClientImpl> oldClient = setDrmManagerClientImpl(env, thiz, NULL);
    240     if (oldClient != NULL) {
    241         oldClient->setOnInfoListener(uniqueId, NULL);
    242         oldClient->removeClient(uniqueId);
    243     }
    244     ALOGV("release - Exit");
    245 }
    246 
    247 static jobject android_drm_DrmManagerClient_getConstraintsFromContent(
    248             JNIEnv* env, jobject thiz, jint uniqueId, jstring jpath, jint usage) {
    249     ALOGV("GetConstraints - Enter");
    250 
    251     const String8 pathString = Utility::getStringValue(env, jpath);
    252     DrmConstraints* pConstraints
    253         = getDrmManagerClientImpl(env, thiz)->getConstraints(uniqueId, &pathString, usage);
    254 
    255     jclass localRef = env->FindClass("android/content/ContentValues");
    256     jmethodID ContentValues_putByteArray =
    257             env->GetMethodID(localRef, "put", "(Ljava/lang/String;[B)V");
    258     jmethodID ContentValues_putString =
    259             env->GetMethodID(localRef, "put", "(Ljava/lang/String;Ljava/lang/String;)V");
    260     jmethodID ContentValues_constructor = env->GetMethodID(localRef, "<init>", "()V");
    261     jobject constraints = NULL;
    262 
    263     if (NULL != localRef && NULL != pConstraints) {
    264         // create the java DrmConstraints object
    265         constraints = env->NewObject(localRef, ContentValues_constructor);
    266 
    267         DrmConstraints::KeyIterator keyIt = pConstraints->keyIterator();
    268         while (keyIt.hasNext()) {
    269             String8 key = keyIt.next();
    270 
    271             // insert the entry<constraintKey, constraintValue> to newly created java object
    272             if (DrmConstraints::EXTENDED_METADATA == key) {
    273                 const char* value = pConstraints->getAsByteArray(&key);
    274                 if (NULL != value) {
    275                     ScopedLocalRef<jbyteArray> dataArray(env, env->NewByteArray(strlen(value)));
    276                     ScopedLocalRef<jstring> keyString(env, env->NewStringUTF(key.string()));
    277                     env->SetByteArrayRegion(dataArray.get(), 0, strlen(value), (jbyte*)value);
    278                     env->CallVoidMethod(constraints, ContentValues_putByteArray,
    279                                         keyString.get(), dataArray.get());
    280                 }
    281             } else {
    282                 String8 value = pConstraints->get(key);
    283                 ScopedLocalRef<jstring> keyString(env, env->NewStringUTF(key.string()));
    284                 ScopedLocalRef<jstring> valueString(env, env->NewStringUTF(value.string()));
    285                 env->CallVoidMethod(constraints, ContentValues_putString,
    286                                     keyString.get(), valueString.get());
    287             }
    288         }
    289     }
    290 
    291     delete pConstraints; pConstraints = NULL;
    292     ALOGV("GetConstraints - Exit");
    293     return constraints;
    294 }
    295 
    296 static jobject android_drm_DrmManagerClient_getMetadataFromContent(
    297             JNIEnv* env, jobject thiz, jint uniqueId, jstring jpath) {
    298     ALOGV("GetMetadata - Enter");
    299     const String8 pathString = Utility::getStringValue(env, jpath);
    300     DrmMetadata* pMetadata =
    301             getDrmManagerClientImpl(env, thiz)->getMetadata(uniqueId, &pathString);
    302 
    303     jobject metadata = NULL;
    304 
    305     jclass localRef = env->FindClass("android/content/ContentValues");
    306     jmethodID ContentValues_putString =
    307             env->GetMethodID(localRef, "put", "(Ljava/lang/String;Ljava/lang/String;)V");
    308 
    309     if (NULL != localRef && NULL != pMetadata) {
    310         // Get the constructor id
    311         jmethodID constructorId = NULL;
    312         constructorId = env->GetMethodID(localRef, "<init>", "()V");
    313         if (NULL != constructorId) {
    314             // create the java DrmMetadata object
    315             metadata = env->NewObject(localRef, constructorId);
    316             if (NULL != metadata) {
    317                 DrmMetadata::KeyIterator keyIt = pMetadata->keyIterator();
    318                 while (keyIt.hasNext()) {
    319                     String8 key = keyIt.next();
    320                     // insert the entry<constraintKey, constraintValue>
    321                     // to newly created java object
    322                     String8 value = pMetadata->get(key);
    323                     ScopedLocalRef<jstring> keyString(env, env->NewStringUTF(key.string()));
    324                     ScopedLocalRef<jstring> valueString(env, env->NewStringUTF(value.string()));
    325                     env->CallVoidMethod(metadata, ContentValues_putString,
    326                                         keyString.get(), valueString.get());
    327                 }
    328             }
    329         }
    330     }
    331     delete pMetadata; pMetadata = NULL;
    332     ALOGV("GetMetadata - Exit");
    333     return metadata;
    334 }
    335 
    336 static jobjectArray android_drm_DrmManagerClient_getAllSupportInfo(
    337             JNIEnv* env, jobject thiz, jint uniqueId) {
    338     ALOGV("GetAllSupportInfo - Enter");
    339     DrmSupportInfo* drmSupportInfoArray = NULL;
    340 
    341     int length = 0;
    342     getDrmManagerClientImpl(env, thiz)->getAllSupportInfo(uniqueId, &length, &drmSupportInfoArray);
    343 
    344     jclass clazz = env->FindClass("android/drm/DrmSupportInfo");
    345 
    346     jobjectArray array = (jobjectArray)env->NewObjectArray(length, clazz, NULL);
    347 
    348     for (int i = 0; i < length; i++) {
    349         DrmSupportInfo info = drmSupportInfoArray[i];
    350 
    351         jobject drmSupportInfo = env->NewObject(clazz, env->GetMethodID(clazz, "<init>", "()V"));
    352 
    353         jmethodID addMimeTypeId
    354             = env->GetMethodID(clazz, "addMimeType", "(Ljava/lang/String;)V");
    355         jmethodID addFileSuffixId
    356             = env->GetMethodID(clazz, "addFileSuffix", "(Ljava/lang/String;)V");
    357 
    358         env->CallVoidMethod(
    359             drmSupportInfo, env->GetMethodID(clazz, "setDescription", "(Ljava/lang/String;)V"),
    360             env->NewStringUTF(info.getDescription().string()));
    361 
    362         DrmSupportInfo::MimeTypeIterator iterator = info.getMimeTypeIterator();
    363         while (iterator.hasNext()) {
    364             String8  value = iterator.next();
    365             env->CallVoidMethod(drmSupportInfo, addMimeTypeId, env->NewStringUTF(value.string()));
    366         }
    367 
    368         DrmSupportInfo::FileSuffixIterator it = info.getFileSuffixIterator();
    369         while (it.hasNext()) {
    370             String8 value = it.next();
    371             env->CallVoidMethod(
    372                 drmSupportInfo, addFileSuffixId, env->NewStringUTF(value.string()));
    373         }
    374 
    375         env->SetObjectArrayElement(array, i, drmSupportInfo);
    376     }
    377 
    378     delete [] drmSupportInfoArray; drmSupportInfoArray = NULL;
    379     ALOGV("GetAllSupportInfo - Exit");
    380     return array;
    381 }
    382 
    383 static void android_drm_DrmManagerClient_installDrmEngine(
    384             JNIEnv* env, jobject thiz, jint uniqueId, jstring engineFilePath) {
    385     ALOGV("installDrmEngine - Enter");
    386     //getDrmManagerClient(env, thiz)
    387     //  ->installDrmEngine(uniqueId, Utility::getStringValue(env, engineFilePath));
    388     ALOGV("installDrmEngine - Exit");
    389 }
    390 
    391 static jint android_drm_DrmManagerClient_saveRights(
    392             JNIEnv* env, jobject thiz, jint uniqueId,
    393             jobject drmRights, jstring rightsPath, jstring contentPath) {
    394     ALOGV("saveRights - Enter");
    395     int result = DRM_ERROR_UNKNOWN;
    396     int dataLength = 0;
    397     char* mData =  Utility::getByteArrayValue(env, drmRights, "mData", &dataLength);
    398 
    399     if (NULL != mData) {
    400         DrmRights rights(DrmBuffer(mData, dataLength),
    401                 Utility::getStringValue(env, drmRights, "mMimeType"),
    402                 Utility::getStringValue(env, drmRights, "mAccountId"),
    403                 Utility::getStringValue(env, drmRights, "mSubscriptionId"));
    404         result = getDrmManagerClientImpl(env, thiz)
    405             ->saveRights(uniqueId, rights, Utility::getStringValue(env, rightsPath),
    406                                 Utility::getStringValue(env, contentPath));
    407     }
    408 
    409     delete[] mData; mData = NULL;
    410     ALOGV("saveRights - Exit");
    411     return static_cast<jint>(result);
    412 }
    413 
    414 static jboolean android_drm_DrmManagerClient_canHandle(
    415             JNIEnv* env, jobject thiz, jint uniqueId, jstring path, jstring mimeType) {
    416     ALOGV("canHandle - Enter");
    417     jboolean result
    418         = getDrmManagerClientImpl(env, thiz)
    419             ->canHandle(uniqueId, Utility::getStringValue(env, path),
    420                     Utility::getStringValue(env, mimeType));
    421     ALOGV("canHandle - Exit");
    422     return result;
    423 }
    424 
    425 static jobject android_drm_DrmManagerClient_processDrmInfo(
    426             JNIEnv* env, jobject thiz, jint uniqueId, jobject drmInfoObject) {
    427     ALOGV("processDrmInfo - Enter");
    428     int dataLength = 0;
    429     const String8 mMimeType =  Utility::getStringValue(env, drmInfoObject, "mMimeType");
    430     char* mData =  Utility::getByteArrayValue(env, drmInfoObject, "mData", &dataLength);
    431     int mInfoType = Utility::getIntValue(env, drmInfoObject, "mInfoType");
    432 
    433     const DrmBuffer buffer(mData, dataLength);
    434     DrmInfo drmInfo(mInfoType, buffer, mMimeType);
    435 
    436     jclass clazz = env->FindClass("android/drm/DrmInfo");
    437     jmethodID DrmInfo_get = env->GetMethodID(clazz, "get", "(Ljava/lang/String;)Ljava/lang/Object;");
    438     jobject keyIterator
    439         = env->CallObjectMethod(drmInfoObject,
    440                 env->GetMethodID(clazz, "keyIterator", "()Ljava/util/Iterator;"));
    441 
    442     jclass Iterator_class = env->FindClass("java/util/Iterator");
    443     jmethodID Iterator_hasNext = env->GetMethodID(Iterator_class, "hasNext", "()Z");
    444     jmethodID Iterator_next = env->GetMethodID(Iterator_class, "next", "()Ljava/lang/Object;");
    445 
    446     jclass Object_class = env->FindClass("java/lang/Object");
    447     jmethodID Object_toString = env->GetMethodID(Object_class, "toString", "()Ljava/lang/String;");
    448 
    449     while (env->CallBooleanMethod(keyIterator, Iterator_hasNext)) {
    450         ScopedLocalRef<jstring> key(env,
    451                 (jstring) env->CallObjectMethod(keyIterator, Iterator_next));
    452         ScopedLocalRef<jobject> valueObject(env,
    453                 env->CallObjectMethod(drmInfoObject, DrmInfo_get, key.get()));
    454         ScopedLocalRef<jstring> valString(env, NULL);
    455         if (NULL != valueObject.get()) {
    456             valString.reset((jstring) env->CallObjectMethod(valueObject.get(), Object_toString));
    457         }
    458 
    459         String8 keyString = Utility::getStringValue(env, key.get());
    460         String8 valueString = Utility::getStringValue(env, valString.get());
    461         ALOGV("Key: %s | Value: %s", keyString.string(), valueString.string());
    462 
    463         drmInfo.put(keyString, valueString);
    464     }
    465 
    466     DrmInfoStatus* pDrmInfoStatus
    467         = getDrmManagerClientImpl(env, thiz)->processDrmInfo(uniqueId, &drmInfo);
    468 
    469     jclass localRef = env->FindClass("android/drm/DrmInfoStatus");
    470     jobject drmInfoStatus = NULL;
    471 
    472     if (NULL != localRef && NULL != pDrmInfoStatus) {
    473         int statusCode = pDrmInfoStatus->statusCode;
    474         int infoType = pDrmInfoStatus->infoType;
    475 
    476         jbyteArray dataArray = NULL;
    477         if (NULL != pDrmInfoStatus->drmBuffer) {
    478             int length = pDrmInfoStatus->drmBuffer->length;
    479             dataArray = env->NewByteArray(length);
    480             env->SetByteArrayRegion(
    481                 dataArray, 0, length, (jbyte*) pDrmInfoStatus->drmBuffer->data);
    482 
    483             delete [] pDrmInfoStatus->drmBuffer->data;
    484             delete pDrmInfoStatus->drmBuffer; pDrmInfoStatus->drmBuffer = NULL;
    485         }
    486         jclass clazz = env->FindClass("android/drm/ProcessedData");
    487         jmethodID constructorId
    488             = env->GetMethodID(clazz, "<init>", "([BLjava/lang/String;Ljava/lang/String;)V");
    489         jobject processedData = env->NewObject(clazz, constructorId, dataArray,
    490                     env->NewStringUTF((drmInfo.get(DrmInfoRequest::ACCOUNT_ID)).string()),
    491                     env->NewStringUTF((drmInfo.get(DrmInfoRequest::SUBSCRIPTION_ID)).string()));
    492 
    493         constructorId
    494             = env->GetMethodID(localRef,
    495                 "<init>", "(IILandroid/drm/ProcessedData;Ljava/lang/String;)V");
    496 
    497         drmInfoStatus = env->NewObject(localRef, constructorId, statusCode, infoType,
    498                 processedData, env->NewStringUTF(pDrmInfoStatus->mimeType.string()));
    499     }
    500 
    501     delete[] mData; mData = NULL;
    502     delete pDrmInfoStatus; pDrmInfoStatus = NULL;
    503 
    504     ALOGV("processDrmInfo - Exit");
    505     return drmInfoStatus;
    506 }
    507 
    508 static jobject android_drm_DrmManagerClient_acquireDrmInfo(
    509             JNIEnv* env, jobject thiz, jint uniqueId, jobject drmInfoRequest) {
    510     ALOGV("acquireDrmInfo Enter");
    511     const String8 mMimeType =  Utility::getStringValue(env, drmInfoRequest, "mMimeType");
    512     int mInfoType = Utility::getIntValue(env, drmInfoRequest, "mInfoType");
    513 
    514     DrmInfoRequest drmInfoReq(mInfoType, mMimeType);
    515 
    516     jclass clazz = env->FindClass("android/drm/DrmInfoRequest");
    517     jobject keyIterator
    518         = env->CallObjectMethod(drmInfoRequest,
    519                 env->GetMethodID(clazz, "keyIterator", "()Ljava/util/Iterator;"));
    520     jmethodID DrmInfoRequest_get = env->GetMethodID(clazz,
    521             "get", "(Ljava/lang/String;)Ljava/lang/Object;");
    522 
    523     jclass Iterator_class = env->FindClass("java/util/Iterator");
    524     jmethodID Iterator_hasNext = env->GetMethodID(Iterator_class, "hasNext", "()Z");
    525     jmethodID Iterator_next = env->GetMethodID(Iterator_class, "next", "()Ljava/lang/Object;");
    526 
    527     while (env->CallBooleanMethod(keyIterator, Iterator_hasNext)) {
    528         ScopedLocalRef<jstring> key(env,
    529                 (jstring) env->CallObjectMethod(keyIterator, Iterator_next));
    530         ScopedLocalRef<jstring> value(env,
    531                 (jstring) env->CallObjectMethod(drmInfoRequest, DrmInfoRequest_get, key.get()));
    532 
    533         String8 keyString = Utility::getStringValue(env, key.get());
    534         String8 valueString = Utility::getStringValue(env, value.get());
    535         ALOGV("Key: %s | Value: %s", keyString.string(), valueString.string());
    536 
    537         drmInfoReq.put(keyString, valueString);
    538     }
    539 
    540     DrmInfo* pDrmInfo = getDrmManagerClientImpl(env, thiz)->acquireDrmInfo(uniqueId, &drmInfoReq);
    541 
    542     jobject drmInfoObject = NULL;
    543 
    544     if (NULL != pDrmInfo) {
    545         jclass localRef = env->FindClass("android/drm/DrmInfo");
    546 
    547         if (NULL != localRef) {
    548             int length = pDrmInfo->getData().length;
    549 
    550             jbyteArray dataArray = env->NewByteArray(length);
    551             env->SetByteArrayRegion(dataArray, 0, length, (jbyte*)pDrmInfo->getData().data);
    552 
    553             drmInfoObject
    554                 = env->NewObject(localRef,
    555                     env->GetMethodID(localRef, "<init>", "(I[BLjava/lang/String;)V"),
    556                     mInfoType, dataArray, env->NewStringUTF(pDrmInfo->getMimeType().string()));
    557 
    558             DrmInfo::KeyIterator it = pDrmInfo->keyIterator();
    559             jmethodID putMethodId
    560                 = env->GetMethodID(localRef, "put", "(Ljava/lang/String;Ljava/lang/Object;)V");
    561 
    562             while (it.hasNext()) {
    563                 String8 key = it.next();
    564                 String8 value = pDrmInfo->get(key);
    565                 ScopedLocalRef<jstring> keyString(env, env->NewStringUTF(key.string()));
    566                 ScopedLocalRef<jstring> valueString(env, env->NewStringUTF(value.string()));
    567                 env->CallVoidMethod(drmInfoObject, putMethodId,
    568                     keyString.get(), valueString.get());
    569             }
    570         }
    571         delete [] pDrmInfo->getData().data;
    572     }
    573 
    574     delete pDrmInfo; pDrmInfo = NULL;
    575 
    576     ALOGV("acquireDrmInfo Exit");
    577     return drmInfoObject;
    578 }
    579 
    580 static jint android_drm_DrmManagerClient_getDrmObjectType(
    581             JNIEnv* env, jobject thiz, jint uniqueId, jstring path, jstring mimeType) {
    582     ALOGV("getDrmObjectType Enter");
    583     int drmObjectType
    584         = getDrmManagerClientImpl(env, thiz)
    585             ->getDrmObjectType(uniqueId, Utility::getStringValue(env, path),
    586                                 Utility::getStringValue(env, mimeType));
    587     ALOGV("getDrmObjectType Exit");
    588     return static_cast<jint>(drmObjectType);
    589 }
    590 
    591 static jstring android_drm_DrmManagerClient_getOriginalMimeType(
    592             JNIEnv* env, jobject thiz, jint uniqueId, jstring path, jobject fileDescriptor) {
    593     ALOGV("getOriginalMimeType Enter");
    594 
    595     int fd = (fileDescriptor == NULL)
    596                 ? -1
    597                 : jniGetFDFromFileDescriptor(env, fileDescriptor);
    598 
    599     String8 mimeType
    600         = getDrmManagerClientImpl(env, thiz)
    601             ->getOriginalMimeType(uniqueId,
    602                                   Utility::getStringValue(env, path), fd);
    603     ALOGV("getOriginalMimeType Exit");
    604     return env->NewStringUTF(mimeType.string());
    605 }
    606 
    607 static jint android_drm_DrmManagerClient_checkRightsStatus(
    608             JNIEnv* env, jobject thiz, jint uniqueId, jstring path, int action) {
    609     ALOGV("checkRightsStatus Enter");
    610     int rightsStatus
    611         = getDrmManagerClientImpl(env, thiz)
    612             ->checkRightsStatus(uniqueId, Utility::getStringValue(env, path), action);
    613     ALOGV("checkRightsStatus Exit");
    614     return static_cast<jint>(rightsStatus);
    615 }
    616 
    617 static jint android_drm_DrmManagerClient_removeRights(
    618             JNIEnv* env, jobject thiz, jint uniqueId, jstring path) {
    619     ALOGV("removeRights");
    620     return static_cast<jint>(getDrmManagerClientImpl(env, thiz)
    621                ->removeRights(uniqueId, Utility::getStringValue(env, path)));
    622 }
    623 
    624 static jint android_drm_DrmManagerClient_removeAllRights(
    625             JNIEnv* env, jobject thiz, jint uniqueId) {
    626     ALOGV("removeAllRights");
    627     return static_cast<jint>(getDrmManagerClientImpl(env, thiz)
    628                 ->removeAllRights(uniqueId));
    629 }
    630 
    631 static jint android_drm_DrmManagerClient_openConvertSession(
    632             JNIEnv* env, jobject thiz, jint uniqueId, jstring mimeType) {
    633     ALOGV("openConvertSession Enter");
    634     int convertId
    635         = getDrmManagerClientImpl(env, thiz)
    636             ->openConvertSession(uniqueId, Utility::getStringValue(env, mimeType));
    637     ALOGV("openConvertSession Exit");
    638     return static_cast<jint>(convertId);
    639 }
    640 
    641 static jobject GetConvertedStatus(JNIEnv* env, DrmConvertedStatus* pDrmConvertedStatus) {
    642     ALOGV("GetConvertedStatus - Enter");
    643     jclass localRef = env->FindClass("android/drm/DrmConvertedStatus");
    644 
    645     jobject drmConvertedStatus = NULL;
    646 
    647     if (NULL != localRef && NULL != pDrmConvertedStatus) {
    648         int statusCode = pDrmConvertedStatus->statusCode;
    649 
    650         jbyteArray dataArray = NULL;
    651         if (NULL != pDrmConvertedStatus->convertedData) {
    652             int length = pDrmConvertedStatus->convertedData->length;
    653             dataArray = env->NewByteArray(length);
    654             env->SetByteArrayRegion(
    655                 dataArray, 0, length, (jbyte*) pDrmConvertedStatus->convertedData->data);
    656 
    657             delete [] pDrmConvertedStatus->convertedData->data;
    658             delete pDrmConvertedStatus->convertedData; pDrmConvertedStatus->convertedData = NULL;
    659         }
    660         jmethodID constructorId = env->GetMethodID(localRef, "<init>", "(I[BI)V");
    661         drmConvertedStatus
    662             = env->NewObject(localRef, constructorId,
    663                              statusCode, dataArray, pDrmConvertedStatus->offset);
    664     }
    665 
    666     delete pDrmConvertedStatus; pDrmConvertedStatus = NULL;
    667 
    668     ALOGV("GetConvertedStatus - Exit");
    669     return drmConvertedStatus;
    670 }
    671 
    672 static jobject android_drm_DrmManagerClient_convertData(
    673             JNIEnv* env, jobject thiz, jint uniqueId, jint convertId, jbyteArray inputData) {
    674     ALOGV("convertData Enter");
    675 
    676     int dataLength = 0;
    677     char* mData = Utility::getByteArrayValue(env, inputData, &dataLength);
    678     const DrmBuffer buffer(mData, dataLength);
    679 
    680     DrmConvertedStatus* pDrmConvertedStatus
    681             = getDrmManagerClientImpl(env, thiz)->convertData(uniqueId, convertId, &buffer);
    682     jobject status = GetConvertedStatus(env, pDrmConvertedStatus);
    683 
    684     delete[] mData;
    685     mData = NULL;
    686 
    687     ALOGV("convertData - Exit");
    688     return status;
    689 }
    690 
    691 static jobject android_drm_DrmManagerClient_closeConvertSession(
    692             JNIEnv* env, jobject thiz, jint uniqueId, jint convertId) {
    693 
    694     ALOGV("closeConvertSession Enter");
    695 
    696     DrmConvertedStatus* pDrmConvertedStatus
    697                 = getDrmManagerClientImpl(env, thiz)->closeConvertSession(uniqueId, convertId);
    698     jobject status = GetConvertedStatus(env, pDrmConvertedStatus);
    699 
    700     ALOGV("closeConvertSession - Exit");
    701     return status;
    702 }
    703 
    704 static JNINativeMethod nativeMethods[] = {
    705 
    706     {"_initialize", "()I",
    707                                     (void*)android_drm_DrmManagerClient_initialize},
    708 
    709     {"_setListeners", "(ILjava/lang/Object;)V",
    710                                     (void*)android_drm_DrmManagerClient_setListeners},
    711 
    712     {"_release", "(I)V",
    713                                     (void*)android_drm_DrmManagerClient_release},
    714 
    715     {"_getConstraints", "(ILjava/lang/String;I)Landroid/content/ContentValues;",
    716                                     (void*)android_drm_DrmManagerClient_getConstraintsFromContent},
    717 
    718     {"_getMetadata", "(ILjava/lang/String;)Landroid/content/ContentValues;",
    719                                     (void*)android_drm_DrmManagerClient_getMetadataFromContent},
    720 
    721     {"_getAllSupportInfo", "(I)[Landroid/drm/DrmSupportInfo;",
    722                                     (void*)android_drm_DrmManagerClient_getAllSupportInfo},
    723 
    724     {"_installDrmEngine", "(ILjava/lang/String;)V",
    725                                     (void*)android_drm_DrmManagerClient_installDrmEngine},
    726 
    727     {"_canHandle", "(ILjava/lang/String;Ljava/lang/String;)Z",
    728                                     (void*)android_drm_DrmManagerClient_canHandle},
    729 
    730     {"_processDrmInfo", "(ILandroid/drm/DrmInfo;)Landroid/drm/DrmInfoStatus;",
    731                                     (void*)android_drm_DrmManagerClient_processDrmInfo},
    732 
    733     {"_acquireDrmInfo", "(ILandroid/drm/DrmInfoRequest;)Landroid/drm/DrmInfo;",
    734                                     (void*)android_drm_DrmManagerClient_acquireDrmInfo},
    735 
    736     {"_saveRights", "(ILandroid/drm/DrmRights;Ljava/lang/String;Ljava/lang/String;)I",
    737                                     (void*)android_drm_DrmManagerClient_saveRights},
    738 
    739     {"_getDrmObjectType", "(ILjava/lang/String;Ljava/lang/String;)I",
    740                                     (void*)android_drm_DrmManagerClient_getDrmObjectType},
    741 
    742     {"_getOriginalMimeType", "(ILjava/lang/String;Ljava/io/FileDescriptor;)Ljava/lang/String;",
    743                                     (void*)android_drm_DrmManagerClient_getOriginalMimeType},
    744 
    745     {"_checkRightsStatus", "(ILjava/lang/String;I)I",
    746                                     (void*)android_drm_DrmManagerClient_checkRightsStatus},
    747 
    748     {"_removeRights", "(ILjava/lang/String;)I",
    749                                     (void*)android_drm_DrmManagerClient_removeRights},
    750 
    751     {"_removeAllRights", "(I)I",
    752                                     (void*)android_drm_DrmManagerClient_removeAllRights},
    753 
    754     {"_openConvertSession", "(ILjava/lang/String;)I",
    755                                     (void*)android_drm_DrmManagerClient_openConvertSession},
    756 
    757     {"_convertData", "(II[B)Landroid/drm/DrmConvertedStatus;",
    758                                     (void*)android_drm_DrmManagerClient_convertData},
    759 
    760     {"_closeConvertSession", "(II)Landroid/drm/DrmConvertedStatus;",
    761                                     (void*)android_drm_DrmManagerClient_closeConvertSession},
    762 };
    763 
    764 static int registerNativeMethods(JNIEnv* env) {
    765     int result = -1;
    766 
    767     /* look up the class */
    768     jclass clazz = env->FindClass("android/drm/DrmManagerClient");
    769 
    770     if (NULL != clazz) {
    771         if (env->RegisterNatives(clazz, nativeMethods, sizeof(nativeMethods)
    772                 / sizeof(nativeMethods[0])) == JNI_OK) {
    773             result = 0;
    774         }
    775     }
    776     return result;
    777 }
    778 
    779 jint JNI_OnLoad(JavaVM* vm, void* reserved) {
    780     JNIEnv* env = NULL;
    781     jint result = -1;
    782 
    783     if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) == JNI_OK) {
    784         if (NULL != env && registerNativeMethods(env) == 0) {
    785             result = JNI_VERSION_1_4;
    786         }
    787     }
    788     return result;
    789 }
    790 
    791