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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", "I");
    186 
    187     sp<DrmManagerClientImpl> old = (DrmManagerClientImpl*)env->GetIntField(thiz, fieldId);
    188     if (client.get()) {
    189         client->incStrong(thiz);
    190     }
    191     if (old != 0) {
    192         old->decStrong(thiz);
    193     }
    194     env->SetIntField(thiz, fieldId, (int)client.get());
    195     return old;
    196 }
    197 
    198 static sp<DrmManagerClientImpl> getDrmManagerClientImpl(JNIEnv* env, jobject thiz) {
    199     Mutex::Autolock l(sLock);
    200     jclass clazz = env->FindClass("android/drm/DrmManagerClient");
    201     jfieldID fieldId = env->GetFieldID(clazz, "mNativeContext", "I");
    202 
    203     DrmManagerClientImpl* const client = (DrmManagerClientImpl*)env->GetIntField(thiz, fieldId);
    204     return sp<DrmManagerClientImpl>(client);
    205 }
    206 
    207 static jint android_drm_DrmManagerClient_initialize(
    208         JNIEnv* env, jobject thiz) {
    209     ALOGV("initialize - Enter");
    210 
    211     int uniqueId = 0;
    212     sp<DrmManagerClientImpl> drmManager = DrmManagerClientImpl::create(&uniqueId, false);
    213     drmManager->addClient(uniqueId);
    214 
    215     setDrmManagerClientImpl(env, thiz, drmManager);
    216     ALOGV("initialize - Exit");
    217     return uniqueId;
    218 }
    219 
    220 static void android_drm_DrmManagerClient_setListeners(
    221         JNIEnv* env, jobject thiz, jint uniqueId, jobject weak_thiz) {
    222     ALOGV("setListeners - Enter");
    223 
    224     // Set the listener to DrmManager
    225     sp<DrmManagerClient::OnInfoListener> listener = new JNIOnInfoListener(env, thiz, weak_thiz);
    226     getDrmManagerClientImpl(env, thiz)->setOnInfoListener(uniqueId, listener);
    227 
    228     ALOGV("setListeners - Exit");
    229 }
    230 
    231 static void android_drm_DrmManagerClient_release(
    232         JNIEnv* env, jobject thiz, jint uniqueId) {
    233     ALOGV("release - Enter");
    234     DrmManagerClientImpl::remove(uniqueId);
    235     getDrmManagerClientImpl(env, thiz)->setOnInfoListener(uniqueId, NULL);
    236 
    237     sp<DrmManagerClientImpl> oldClient = setDrmManagerClientImpl(env, thiz, NULL);
    238     if (oldClient != NULL) {
    239         oldClient->setOnInfoListener(uniqueId, NULL);
    240         oldClient->removeClient(uniqueId);
    241     }
    242     ALOGV("release - Exit");
    243 }
    244 
    245 static jobject android_drm_DrmManagerClient_getConstraintsFromContent(
    246             JNIEnv* env, jobject thiz, jint uniqueId, jstring jpath, jint usage) {
    247     ALOGV("GetConstraints - Enter");
    248 
    249     const String8 pathString = Utility::getStringValue(env, jpath);
    250     DrmConstraints* pConstraints
    251         = getDrmManagerClientImpl(env, thiz)->getConstraints(uniqueId, &pathString, usage);
    252 
    253     jclass localRef = env->FindClass("android/content/ContentValues");
    254     jmethodID ContentValues_putByteArray =
    255             env->GetMethodID(localRef, "put", "(Ljava/lang/String;[B)V");
    256     jmethodID ContentValues_putString =
    257             env->GetMethodID(localRef, "put", "(Ljava/lang/String;Ljava/lang/String;)V");
    258     jmethodID ContentValues_constructor = env->GetMethodID(localRef, "<init>", "()V");
    259     jobject constraints = NULL;
    260 
    261     if (NULL != localRef && NULL != pConstraints) {
    262         // create the java DrmConstraints object
    263         constraints = env->NewObject(localRef, ContentValues_constructor);
    264 
    265         DrmConstraints::KeyIterator keyIt = pConstraints->keyIterator();
    266         while (keyIt.hasNext()) {
    267             String8 key = keyIt.next();
    268 
    269             // insert the entry<constraintKey, constraintValue> to newly created java object
    270             if (DrmConstraints::EXTENDED_METADATA == key) {
    271                 const char* value = pConstraints->getAsByteArray(&key);
    272                 if (NULL != value) {
    273                     ScopedLocalRef<jbyteArray> dataArray(env, env->NewByteArray(strlen(value)));
    274                     ScopedLocalRef<jstring> keyString(env, env->NewStringUTF(key.string()));
    275                     env->SetByteArrayRegion(dataArray.get(), 0, strlen(value), (jbyte*)value);
    276                     env->CallVoidMethod(constraints, ContentValues_putByteArray,
    277                                         keyString.get(), dataArray.get());
    278                 }
    279             } else {
    280                 String8 value = pConstraints->get(key);
    281                 ScopedLocalRef<jstring> keyString(env, env->NewStringUTF(key.string()));
    282                 ScopedLocalRef<jstring> valueString(env, env->NewStringUTF(value.string()));
    283                 env->CallVoidMethod(constraints, ContentValues_putString,
    284                                     keyString.get(), valueString.get());
    285             }
    286         }
    287     }
    288 
    289     delete pConstraints; pConstraints = NULL;
    290     ALOGV("GetConstraints - Exit");
    291     return constraints;
    292 }
    293 
    294 static jobject android_drm_DrmManagerClient_getMetadataFromContent(
    295             JNIEnv* env, jobject thiz, jint uniqueId, jstring jpath) {
    296     ALOGV("GetMetadata - Enter");
    297     const String8 pathString = Utility::getStringValue(env, jpath);
    298     DrmMetadata* pMetadata =
    299             getDrmManagerClientImpl(env, thiz)->getMetadata(uniqueId, &pathString);
    300 
    301     jobject metadata = NULL;
    302 
    303     jclass localRef = env->FindClass("android/content/ContentValues");
    304     jmethodID ContentValues_putString =
    305             env->GetMethodID(localRef, "put", "(Ljava/lang/String;Ljava/lang/String;)V");
    306 
    307     if (NULL != localRef && NULL != pMetadata) {
    308         // Get the constructor id
    309         jmethodID constructorId = NULL;
    310         constructorId = env->GetMethodID(localRef, "<init>", "()V");
    311         if (NULL != constructorId) {
    312             // create the java DrmMetadata object
    313             metadata = env->NewObject(localRef, constructorId);
    314             if (NULL != metadata) {
    315                 DrmMetadata::KeyIterator keyIt = pMetadata->keyIterator();
    316                 while (keyIt.hasNext()) {
    317                     String8 key = keyIt.next();
    318                     // insert the entry<constraintKey, constraintValue>
    319                     // to newly created java object
    320                     String8 value = pMetadata->get(key);
    321                     ScopedLocalRef<jstring> keyString(env, env->NewStringUTF(key.string()));
    322                     ScopedLocalRef<jstring> valueString(env, env->NewStringUTF(value.string()));
    323                     env->CallVoidMethod(metadata, ContentValues_putString,
    324                                         keyString.get(), valueString.get());
    325                 }
    326             }
    327         }
    328     }
    329     delete pMetadata; pMetadata = NULL;
    330     ALOGV("GetMetadata - Exit");
    331     return metadata;
    332 }
    333 
    334 static jobjectArray android_drm_DrmManagerClient_getAllSupportInfo(
    335             JNIEnv* env, jobject thiz, jint uniqueId) {
    336     ALOGV("GetAllSupportInfo - Enter");
    337     DrmSupportInfo* drmSupportInfoArray = NULL;
    338 
    339     int length = 0;
    340     getDrmManagerClientImpl(env, thiz)->getAllSupportInfo(uniqueId, &length, &drmSupportInfoArray);
    341 
    342     jclass clazz = env->FindClass("android/drm/DrmSupportInfo");
    343 
    344     jobjectArray array = (jobjectArray)env->NewObjectArray(length, clazz, NULL);
    345 
    346     for (int i = 0; i < length; i++) {
    347         DrmSupportInfo info = drmSupportInfoArray[i];
    348 
    349         jobject drmSupportInfo = env->NewObject(clazz, env->GetMethodID(clazz, "<init>", "()V"));
    350 
    351         jmethodID addMimeTypeId
    352             = env->GetMethodID(clazz, "addMimeType", "(Ljava/lang/String;)V");
    353         jmethodID addFileSuffixId
    354             = env->GetMethodID(clazz, "addFileSuffix", "(Ljava/lang/String;)V");
    355 
    356         env->CallVoidMethod(
    357             drmSupportInfo, env->GetMethodID(clazz, "setDescription", "(Ljava/lang/String;)V"),
    358             env->NewStringUTF(info.getDescription().string()));
    359 
    360         DrmSupportInfo::MimeTypeIterator iterator = info.getMimeTypeIterator();
    361         while (iterator.hasNext()) {
    362             String8  value = iterator.next();
    363             env->CallVoidMethod(drmSupportInfo, addMimeTypeId, env->NewStringUTF(value.string()));
    364         }
    365 
    366         DrmSupportInfo::FileSuffixIterator it = info.getFileSuffixIterator();
    367         while (it.hasNext()) {
    368             String8 value = it.next();
    369             env->CallVoidMethod(
    370                 drmSupportInfo, addFileSuffixId, env->NewStringUTF(value.string()));
    371         }
    372 
    373         env->SetObjectArrayElement(array, i, drmSupportInfo);
    374     }
    375 
    376     delete [] drmSupportInfoArray; drmSupportInfoArray = NULL;
    377     ALOGV("GetAllSupportInfo - Exit");
    378     return array;
    379 }
    380 
    381 static void android_drm_DrmManagerClient_installDrmEngine(
    382             JNIEnv* env, jobject thiz, jint uniqueId, jstring engineFilePath) {
    383     ALOGV("installDrmEngine - Enter");
    384     //getDrmManagerClient(env, thiz)
    385     //  ->installDrmEngine(uniqueId, Utility::getStringValue(env, engineFilePath));
    386     ALOGV("installDrmEngine - Exit");
    387 }
    388 
    389 static jint android_drm_DrmManagerClient_saveRights(
    390             JNIEnv* env, jobject thiz, jint uniqueId,
    391             jobject drmRights, jstring rightsPath, jstring contentPath) {
    392     ALOGV("saveRights - Enter");
    393     int result = DRM_ERROR_UNKNOWN;
    394     int dataLength = 0;
    395     char* mData =  Utility::getByteArrayValue(env, drmRights, "mData", &dataLength);
    396 
    397     if (NULL != mData) {
    398         DrmRights rights(DrmBuffer(mData, dataLength),
    399                 Utility::getStringValue(env, drmRights, "mMimeType"),
    400                 Utility::getStringValue(env, drmRights, "mAccountId"),
    401                 Utility::getStringValue(env, drmRights, "mSubscriptionId"));
    402         result = getDrmManagerClientImpl(env, thiz)
    403             ->saveRights(uniqueId, rights, Utility::getStringValue(env, rightsPath),
    404                                 Utility::getStringValue(env, contentPath));
    405     }
    406 
    407     delete[] mData; mData = NULL;
    408     ALOGV("saveRights - Exit");
    409     return result;
    410 }
    411 
    412 static jboolean android_drm_DrmManagerClient_canHandle(
    413             JNIEnv* env, jobject thiz, jint uniqueId, jstring path, jstring mimeType) {
    414     ALOGV("canHandle - Enter");
    415     jboolean result
    416         = getDrmManagerClientImpl(env, thiz)
    417             ->canHandle(uniqueId, Utility::getStringValue(env, path),
    418                     Utility::getStringValue(env, mimeType));
    419     ALOGV("canHandle - Exit");
    420     return result;
    421 }
    422 
    423 static jobject android_drm_DrmManagerClient_processDrmInfo(
    424             JNIEnv* env, jobject thiz, jint uniqueId, jobject drmInfoObject) {
    425     ALOGV("processDrmInfo - Enter");
    426     int dataLength = 0;
    427     const String8 mMimeType =  Utility::getStringValue(env, drmInfoObject, "mMimeType");
    428     char* mData =  Utility::getByteArrayValue(env, drmInfoObject, "mData", &dataLength);
    429     int mInfoType = Utility::getIntValue(env, drmInfoObject, "mInfoType");
    430 
    431     const DrmBuffer buffer(mData, dataLength);
    432     DrmInfo drmInfo(mInfoType, buffer, mMimeType);
    433 
    434     jclass clazz = env->FindClass("android/drm/DrmInfo");
    435     jmethodID DrmInfo_get = env->GetMethodID(clazz, "get", "(Ljava/lang/String;)Ljava/lang/Object;");
    436     jobject keyIterator
    437         = env->CallObjectMethod(drmInfoObject,
    438                 env->GetMethodID(clazz, "keyIterator", "()Ljava/util/Iterator;"));
    439 
    440     jclass Iterator_class = env->FindClass("java/util/Iterator");
    441     jmethodID Iterator_hasNext = env->GetMethodID(Iterator_class, "hasNext", "()Z");
    442     jmethodID Iterator_next = env->GetMethodID(Iterator_class, "next", "()Ljava/lang/Object;");
    443 
    444     jclass Object_class = env->FindClass("java/lang/Object");
    445     jmethodID Object_toString = env->GetMethodID(Object_class, "toString", "()Ljava/lang/String;");
    446 
    447     while (env->CallBooleanMethod(keyIterator, Iterator_hasNext)) {
    448         ScopedLocalRef<jstring> key(env,
    449                 (jstring) env->CallObjectMethod(keyIterator, Iterator_next));
    450         ScopedLocalRef<jobject> valueObject(env,
    451                 env->CallObjectMethod(drmInfoObject, DrmInfo_get, key.get()));
    452         ScopedLocalRef<jstring> valString(env, NULL);
    453         if (NULL != valueObject.get()) {
    454             valString.reset((jstring) env->CallObjectMethod(valueObject.get(), Object_toString));
    455         }
    456 
    457         String8 keyString = Utility::getStringValue(env, key.get());
    458         String8 valueString = Utility::getStringValue(env, valString.get());
    459         ALOGV("Key: %s | Value: %s", keyString.string(), valueString.string());
    460 
    461         drmInfo.put(keyString, valueString);
    462     }
    463 
    464     DrmInfoStatus* pDrmInfoStatus
    465         = getDrmManagerClientImpl(env, thiz)->processDrmInfo(uniqueId, &drmInfo);
    466 
    467     jclass localRef = env->FindClass("android/drm/DrmInfoStatus");
    468     jobject drmInfoStatus = NULL;
    469 
    470     if (NULL != localRef && NULL != pDrmInfoStatus) {
    471         int statusCode = pDrmInfoStatus->statusCode;
    472         int infoType = pDrmInfoStatus->infoType;
    473 
    474         jbyteArray dataArray = NULL;
    475         if (NULL != pDrmInfoStatus->drmBuffer) {
    476             int length = pDrmInfoStatus->drmBuffer->length;
    477             dataArray = env->NewByteArray(length);
    478             env->SetByteArrayRegion(
    479                 dataArray, 0, length, (jbyte*) pDrmInfoStatus->drmBuffer->data);
    480 
    481             delete [] pDrmInfoStatus->drmBuffer->data;
    482             delete pDrmInfoStatus->drmBuffer; pDrmInfoStatus->drmBuffer = NULL;
    483         }
    484         jclass clazz = env->FindClass("android/drm/ProcessedData");
    485         jmethodID constructorId
    486             = env->GetMethodID(clazz, "<init>", "([BLjava/lang/String;Ljava/lang/String;)V");
    487         jobject processedData = env->NewObject(clazz, constructorId, dataArray,
    488                     env->NewStringUTF((drmInfo.get(DrmInfoRequest::ACCOUNT_ID)).string()),
    489                     env->NewStringUTF((drmInfo.get(DrmInfoRequest::SUBSCRIPTION_ID)).string()));
    490 
    491         constructorId
    492             = env->GetMethodID(localRef,
    493                 "<init>", "(IILandroid/drm/ProcessedData;Ljava/lang/String;)V");
    494 
    495         drmInfoStatus = env->NewObject(localRef, constructorId, statusCode, infoType,
    496                 processedData, env->NewStringUTF(pDrmInfoStatus->mimeType.string()));
    497     }
    498 
    499     delete[] mData; mData = NULL;
    500     delete pDrmInfoStatus; pDrmInfoStatus = NULL;
    501 
    502     ALOGV("processDrmInfo - Exit");
    503     return drmInfoStatus;
    504 }
    505 
    506 static jobject android_drm_DrmManagerClient_acquireDrmInfo(
    507             JNIEnv* env, jobject thiz, jint uniqueId, jobject drmInfoRequest) {
    508     ALOGV("acquireDrmInfo Enter");
    509     const String8 mMimeType =  Utility::getStringValue(env, drmInfoRequest, "mMimeType");
    510     int mInfoType = Utility::getIntValue(env, drmInfoRequest, "mInfoType");
    511 
    512     DrmInfoRequest drmInfoReq(mInfoType, mMimeType);
    513 
    514     jclass clazz = env->FindClass("android/drm/DrmInfoRequest");
    515     jobject keyIterator
    516         = env->CallObjectMethod(drmInfoRequest,
    517                 env->GetMethodID(clazz, "keyIterator", "()Ljava/util/Iterator;"));
    518     jmethodID DrmInfoRequest_get = env->GetMethodID(clazz,
    519             "get", "(Ljava/lang/String;)Ljava/lang/Object;");
    520 
    521     jclass Iterator_class = env->FindClass("java/util/Iterator");
    522     jmethodID Iterator_hasNext = env->GetMethodID(Iterator_class, "hasNext", "()Z");
    523     jmethodID Iterator_next = env->GetMethodID(Iterator_class, "next", "()Ljava/lang/Object;");
    524 
    525     while (env->CallBooleanMethod(keyIterator, Iterator_hasNext)) {
    526         ScopedLocalRef<jstring> key(env,
    527                 (jstring) env->CallObjectMethod(keyIterator, Iterator_next));
    528         ScopedLocalRef<jstring> value(env,
    529                 (jstring) env->CallObjectMethod(drmInfoRequest, DrmInfoRequest_get, key.get()));
    530 
    531         String8 keyString = Utility::getStringValue(env, key.get());
    532         String8 valueString = Utility::getStringValue(env, value.get());
    533         ALOGV("Key: %s | Value: %s", keyString.string(), valueString.string());
    534 
    535         drmInfoReq.put(keyString, valueString);
    536     }
    537 
    538     DrmInfo* pDrmInfo = getDrmManagerClientImpl(env, thiz)->acquireDrmInfo(uniqueId, &drmInfoReq);
    539 
    540     jobject drmInfoObject = NULL;
    541 
    542     if (NULL != pDrmInfo) {
    543         jclass localRef = env->FindClass("android/drm/DrmInfo");
    544 
    545         if (NULL != localRef) {
    546             int length = pDrmInfo->getData().length;
    547 
    548             jbyteArray dataArray = env->NewByteArray(length);
    549             env->SetByteArrayRegion(dataArray, 0, length, (jbyte*)pDrmInfo->getData().data);
    550 
    551             drmInfoObject
    552                 = env->NewObject(localRef,
    553                     env->GetMethodID(localRef, "<init>", "(I[BLjava/lang/String;)V"),
    554                     mInfoType, dataArray, env->NewStringUTF(pDrmInfo->getMimeType().string()));
    555 
    556             DrmInfo::KeyIterator it = pDrmInfo->keyIterator();
    557             jmethodID putMethodId
    558                 = env->GetMethodID(localRef, "put", "(Ljava/lang/String;Ljava/lang/Object;)V");
    559 
    560             while (it.hasNext()) {
    561                 String8 key = it.next();
    562                 String8 value = pDrmInfo->get(key);
    563                 ScopedLocalRef<jstring> keyString(env, env->NewStringUTF(key.string()));
    564                 ScopedLocalRef<jstring> valueString(env, env->NewStringUTF(value.string()));
    565                 env->CallVoidMethod(drmInfoObject, putMethodId,
    566                     keyString.get(), valueString.get());
    567             }
    568         }
    569         delete [] pDrmInfo->getData().data;
    570     }
    571 
    572     delete pDrmInfo; pDrmInfo = NULL;
    573 
    574     ALOGV("acquireDrmInfo Exit");
    575     return drmInfoObject;
    576 }
    577 
    578 static jint android_drm_DrmManagerClient_getDrmObjectType(
    579             JNIEnv* env, jobject thiz, jint uniqueId, jstring path, jstring mimeType) {
    580     ALOGV("getDrmObjectType Enter");
    581     int drmObjectType
    582         = getDrmManagerClientImpl(env, thiz)
    583             ->getDrmObjectType(uniqueId, Utility::getStringValue(env, path),
    584                                 Utility::getStringValue(env, mimeType));
    585     ALOGV("getDrmObjectType Exit");
    586     return drmObjectType;
    587 }
    588 
    589 static jstring android_drm_DrmManagerClient_getOriginalMimeType(
    590             JNIEnv* env, jobject thiz, jint uniqueId, jstring path, jobject fileDescriptor) {
    591     ALOGV("getOriginalMimeType Enter");
    592 
    593     int fd = (fileDescriptor == NULL)
    594                 ? -1
    595                 : jniGetFDFromFileDescriptor(env, fileDescriptor);
    596 
    597     String8 mimeType
    598         = getDrmManagerClientImpl(env, thiz)
    599             ->getOriginalMimeType(uniqueId,
    600                                   Utility::getStringValue(env, path), fd);
    601     ALOGV("getOriginalMimeType Exit");
    602     return env->NewStringUTF(mimeType.string());
    603 }
    604 
    605 static jint android_drm_DrmManagerClient_checkRightsStatus(
    606             JNIEnv* env, jobject thiz, jint uniqueId, jstring path, int action) {
    607     ALOGV("checkRightsStatus Enter");
    608     int rightsStatus
    609         = getDrmManagerClientImpl(env, thiz)
    610             ->checkRightsStatus(uniqueId, Utility::getStringValue(env, path), action);
    611     ALOGV("checkRightsStatus Exit");
    612     return rightsStatus;
    613 }
    614 
    615 static jint android_drm_DrmManagerClient_removeRights(
    616             JNIEnv* env, jobject thiz, jint uniqueId, jstring path) {
    617     ALOGV("removeRights");
    618     return getDrmManagerClientImpl(env, thiz)
    619                ->removeRights(uniqueId, Utility::getStringValue(env, path));
    620 }
    621 
    622 static jint android_drm_DrmManagerClient_removeAllRights(
    623             JNIEnv* env, jobject thiz, jint uniqueId) {
    624     ALOGV("removeAllRights");
    625     return getDrmManagerClientImpl(env, thiz)->removeAllRights(uniqueId);
    626 }
    627 
    628 static jint android_drm_DrmManagerClient_openConvertSession(
    629             JNIEnv* env, jobject thiz, jint uniqueId, jstring mimeType) {
    630     ALOGV("openConvertSession Enter");
    631     int convertId
    632         = getDrmManagerClientImpl(env, thiz)
    633             ->openConvertSession(uniqueId, Utility::getStringValue(env, mimeType));
    634     ALOGV("openConvertSession Exit");
    635     return convertId;
    636 }
    637 
    638 static jobject GetConvertedStatus(JNIEnv* env, DrmConvertedStatus* pDrmConvertedStatus) {
    639     ALOGV("GetConvertedStatus - Enter");
    640     jclass localRef = env->FindClass("android/drm/DrmConvertedStatus");
    641 
    642     jobject drmConvertedStatus = NULL;
    643 
    644     if (NULL != localRef && NULL != pDrmConvertedStatus) {
    645         int statusCode = pDrmConvertedStatus->statusCode;
    646 
    647         jbyteArray dataArray = NULL;
    648         if (NULL != pDrmConvertedStatus->convertedData) {
    649             int length = pDrmConvertedStatus->convertedData->length;
    650             dataArray = env->NewByteArray(length);
    651             env->SetByteArrayRegion(
    652                 dataArray, 0, length, (jbyte*) pDrmConvertedStatus->convertedData->data);
    653 
    654             delete [] pDrmConvertedStatus->convertedData->data;
    655             delete pDrmConvertedStatus->convertedData; pDrmConvertedStatus->convertedData = NULL;
    656         }
    657         jmethodID constructorId = env->GetMethodID(localRef, "<init>", "(I[BI)V");
    658         drmConvertedStatus
    659             = env->NewObject(localRef, constructorId,
    660                              statusCode, dataArray, pDrmConvertedStatus->offset);
    661     }
    662 
    663     delete pDrmConvertedStatus; pDrmConvertedStatus = NULL;
    664 
    665     ALOGV("GetConvertedStatus - Exit");
    666     return drmConvertedStatus;
    667 }
    668 
    669 static jobject android_drm_DrmManagerClient_convertData(
    670             JNIEnv* env, jobject thiz, jint uniqueId, jint convertId, jbyteArray inputData) {
    671     ALOGV("convertData Enter");
    672 
    673     int dataLength = 0;
    674     char* mData = Utility::getByteArrayValue(env, inputData, &dataLength);
    675     const DrmBuffer buffer(mData, dataLength);
    676 
    677     DrmConvertedStatus* pDrmConvertedStatus
    678             = getDrmManagerClientImpl(env, thiz)->convertData(uniqueId, convertId, &buffer);
    679     jobject status = GetConvertedStatus(env, pDrmConvertedStatus);
    680 
    681     delete[] mData;
    682     mData = NULL;
    683 
    684     ALOGV("convertData - Exit");
    685     return status;
    686 }
    687 
    688 static jobject android_drm_DrmManagerClient_closeConvertSession(
    689             JNIEnv* env, jobject thiz, int uniqueId, jint convertId) {
    690 
    691     ALOGV("closeConvertSession Enter");
    692 
    693     DrmConvertedStatus* pDrmConvertedStatus
    694                 = getDrmManagerClientImpl(env, thiz)->closeConvertSession(uniqueId, convertId);
    695     jobject status = GetConvertedStatus(env, pDrmConvertedStatus);
    696 
    697     ALOGV("closeConvertSession - Exit");
    698     return status;
    699 }
    700 
    701 static JNINativeMethod nativeMethods[] = {
    702 
    703     {"_initialize", "()I",
    704                                     (void*)android_drm_DrmManagerClient_initialize},
    705 
    706     {"_setListeners", "(ILjava/lang/Object;)V",
    707                                     (void*)android_drm_DrmManagerClient_setListeners},
    708 
    709     {"_release", "(I)V",
    710                                     (void*)android_drm_DrmManagerClient_release},
    711 
    712     {"_getConstraints", "(ILjava/lang/String;I)Landroid/content/ContentValues;",
    713                                     (void*)android_drm_DrmManagerClient_getConstraintsFromContent},
    714 
    715     {"_getMetadata", "(ILjava/lang/String;)Landroid/content/ContentValues;",
    716                                     (void*)android_drm_DrmManagerClient_getMetadataFromContent},
    717 
    718     {"_getAllSupportInfo", "(I)[Landroid/drm/DrmSupportInfo;",
    719                                     (void*)android_drm_DrmManagerClient_getAllSupportInfo},
    720 
    721     {"_installDrmEngine", "(ILjava/lang/String;)V",
    722                                     (void*)android_drm_DrmManagerClient_installDrmEngine},
    723 
    724     {"_canHandle", "(ILjava/lang/String;Ljava/lang/String;)Z",
    725                                     (void*)android_drm_DrmManagerClient_canHandle},
    726 
    727     {"_processDrmInfo", "(ILandroid/drm/DrmInfo;)Landroid/drm/DrmInfoStatus;",
    728                                     (void*)android_drm_DrmManagerClient_processDrmInfo},
    729 
    730     {"_acquireDrmInfo", "(ILandroid/drm/DrmInfoRequest;)Landroid/drm/DrmInfo;",
    731                                     (void*)android_drm_DrmManagerClient_acquireDrmInfo},
    732 
    733     {"_saveRights", "(ILandroid/drm/DrmRights;Ljava/lang/String;Ljava/lang/String;)I",
    734                                     (void*)android_drm_DrmManagerClient_saveRights},
    735 
    736     {"_getDrmObjectType", "(ILjava/lang/String;Ljava/lang/String;)I",
    737                                     (void*)android_drm_DrmManagerClient_getDrmObjectType},
    738 
    739     {"_getOriginalMimeType", "(ILjava/lang/String;Ljava/io/FileDescriptor;)Ljava/lang/String;",
    740                                     (void*)android_drm_DrmManagerClient_getOriginalMimeType},
    741 
    742     {"_checkRightsStatus", "(ILjava/lang/String;I)I",
    743                                     (void*)android_drm_DrmManagerClient_checkRightsStatus},
    744 
    745     {"_removeRights", "(ILjava/lang/String;)I",
    746                                     (void*)android_drm_DrmManagerClient_removeRights},
    747 
    748     {"_removeAllRights", "(I)I",
    749                                     (void*)android_drm_DrmManagerClient_removeAllRights},
    750 
    751     {"_openConvertSession", "(ILjava/lang/String;)I",
    752                                     (void*)android_drm_DrmManagerClient_openConvertSession},
    753 
    754     {"_convertData", "(II[B)Landroid/drm/DrmConvertedStatus;",
    755                                     (void*)android_drm_DrmManagerClient_convertData},
    756 
    757     {"_closeConvertSession", "(II)Landroid/drm/DrmConvertedStatus;",
    758                                     (void*)android_drm_DrmManagerClient_closeConvertSession},
    759 };
    760 
    761 static int registerNativeMethods(JNIEnv* env) {
    762     int result = -1;
    763 
    764     /* look up the class */
    765     jclass clazz = env->FindClass("android/drm/DrmManagerClient");
    766 
    767     if (NULL != clazz) {
    768         if (env->RegisterNatives(clazz, nativeMethods, sizeof(nativeMethods)
    769                 / sizeof(nativeMethods[0])) == JNI_OK) {
    770             result = 0;
    771         }
    772     }
    773     return result;
    774 }
    775 
    776 jint JNI_OnLoad(JavaVM* vm, void* reserved) {
    777     JNIEnv* env = NULL;
    778     jint result = -1;
    779 
    780     if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) == JNI_OK) {
    781         if (NULL != env && registerNativeMethods(env) == 0) {
    782             result = JNI_VERSION_1_4;
    783         }
    784     }
    785     return result;
    786 }
    787 
    788