1 files changed, 305 insertions, 0 deletions
diff --git a/drm/libdrmframework/plugins/passthru/src/DrmPassthruPlugIn.cpp b/drm/libdrmframework/plugins/passthru/src/DrmPassthruPlugIn.cpp
new file mode 100644
index 0000000..a3eac3e
--- /dev/null
+++ b/drm/libdrmframework/plugins/passthru/src/DrmPassthruPlugIn.cpp
@@ -0,0 +1,305 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "DrmPassthruPlugIn"
+#include <utils/Log.h>
+
+#include <drm/DrmRights.h>
+#include <drm/DrmConstraints.h>
+#include <drm/DrmMetadata.h>
+#include <drm/DrmInfo.h>
+#include <drm/DrmInfoEvent.h>
+#include <drm/DrmInfoStatus.h>
+#include <drm/DrmConvertedStatus.h>
+#include <drm/DrmInfoRequest.h>
+#include <drm/DrmSupportInfo.h>
+#include <DrmPassthruPlugIn.h>
+
+using namespace android;
+
+
+// This extern "C" is mandatory to be managed by TPlugInManager
+extern "C" IDrmEngine* create() {
+    return new DrmPassthruPlugIn();
+}
+
+// This extern "C" is mandatory to be managed by TPlugInManager
+extern "C" void destroy(IDrmEngine* pPlugIn) {
+    delete pPlugIn;
+    pPlugIn = NULL;
+}
+
+DrmPassthruPlugIn::DrmPassthruPlugIn()
+    : DrmEngineBase() {
+
+}
+
+DrmPassthruPlugIn::~DrmPassthruPlugIn() {
+
+}
+
+DrmMetadata* DrmPassthruPlugIn::onGetMetadata(int uniqueId, const String8* path) {
+    return NULL;
+}
+
+DrmConstraints* DrmPassthruPlugIn::onGetConstraints(
+        int uniqueId, const String8* path, int action) {
+    ALOGV("DrmPassthruPlugIn::onGetConstraints From Path: %d", uniqueId);
+    DrmConstraints* drmConstraints = new DrmConstraints();
+
+    String8 value("dummy_available_time");
+    char* charValue = NULL;
+    charValue = new char[value.length() + 1];
+    strncpy(charValue, value.string(), value.length());
+
+    //Just add dummy available time for verification
+    drmConstraints->put(&(DrmConstraints::LICENSE_AVAILABLE_TIME), charValue);
+
+    return drmConstraints;
+}
+
+DrmInfoStatus* DrmPassthruPlugIn::onProcessDrmInfo(int uniqueId, const DrmInfo* drmInfo) {
+    ALOGV("DrmPassthruPlugIn::onProcessDrmInfo - Enter : %d", uniqueId);
+    DrmInfoStatus* drmInfoStatus = NULL;
+    if (NULL != drmInfo) {
+        switch (drmInfo->getInfoType()) {
+        case DrmInfoRequest::TYPE_REGISTRATION_INFO: {
+            const DrmBuffer* emptyBuffer = new DrmBuffer();
+            drmInfoStatus = new DrmInfoStatus(DrmInfoStatus::STATUS_OK,
+                    DrmInfoRequest::TYPE_REGISTRATION_INFO, emptyBuffer, drmInfo->getMimeType());
+            break;
+        }
+        case DrmInfoRequest::TYPE_UNREGISTRATION_INFO: {
+            const DrmBuffer* emptyBuffer = new DrmBuffer();
+            drmInfoStatus = new DrmInfoStatus(DrmInfoStatus::STATUS_OK,
+                    DrmInfoRequest::TYPE_UNREGISTRATION_INFO, emptyBuffer, drmInfo->getMimeType());
+            break;
+        }
+        case DrmInfoRequest::TYPE_RIGHTS_ACQUISITION_INFO: {
+            String8 licenseString("dummy_license_string");
+            const int bufferSize = licenseString.size();
+            char* data = NULL;
+            data = new char[bufferSize];
+            memcpy(data, licenseString.string(), bufferSize);
+            const DrmBuffer* buffer = new DrmBuffer(data, bufferSize);
+            drmInfoStatus = new DrmInfoStatus(DrmInfoStatus::STATUS_OK,
+                    DrmInfoRequest::TYPE_RIGHTS_ACQUISITION_INFO, buffer, drmInfo->getMimeType());
+            break;
+        }
+        }
+    }
+    ALOGV("DrmPassthruPlugIn::onProcessDrmInfo - Exit");
+    return drmInfoStatus;
+}
+
+status_t DrmPassthruPlugIn::onSetOnInfoListener(
+            int uniqueId, const IDrmEngine::OnInfoListener* infoListener) {
+    ALOGV("DrmPassthruPlugIn::onSetOnInfoListener : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+status_t DrmPassthruPlugIn::onInitialize(int uniqueId) {
+    ALOGV("DrmPassthruPlugIn::onInitialize : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+status_t DrmPassthruPlugIn::onTerminate(int uniqueId) {
+    ALOGV("DrmPassthruPlugIn::onTerminate : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+DrmSupportInfo* DrmPassthruPlugIn::onGetSupportInfo(int uniqueId) {
+    ALOGV("DrmPassthruPlugIn::onGetSupportInfo : %d", uniqueId);
+    DrmSupportInfo* drmSupportInfo = new DrmSupportInfo();
+    // Add mimetype's
+    drmSupportInfo->addMimeType(String8("application/vnd.passthru.drm"));
+    // Add File Suffixes
+    drmSupportInfo->addFileSuffix(String8(".passthru"));
+    // Add plug-in description
+    drmSupportInfo->setDescription(String8("Passthru plug-in"));
+    return drmSupportInfo;
+}
+
+status_t DrmPassthruPlugIn::onSaveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath) {
+    ALOGV("DrmPassthruPlugIn::onSaveRights : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+DrmInfo* DrmPassthruPlugIn::onAcquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) {
+    ALOGV("DrmPassthruPlugIn::onAcquireDrmInfo : %d", uniqueId);
+    DrmInfo* drmInfo = NULL;
+
+    if (NULL != drmInfoRequest) {
+        String8 dataString("dummy_acquistion_string");
+        int length = dataString.length();
+        char* data = NULL;
+        data = new char[length];
+        memcpy(data, dataString.string(), length);
+        drmInfo = new DrmInfo(drmInfoRequest->getInfoType(),
+            DrmBuffer(data, length), drmInfoRequest->getMimeType());
+    }
+    return drmInfo;
+}
+
+bool DrmPassthruPlugIn::onCanHandle(int uniqueId, const String8& path) {
+    ALOGV("DrmPassthruPlugIn::canHandle: %s ", path.string());
+    String8 extension = path.getPathExtension();
+    extension.toLower();
+    return (String8(".passthru") == extension);
+}
+
+String8 DrmPassthruPlugIn::onGetOriginalMimeType(int uniqueId, const String8& path) {
+    ALOGV("DrmPassthruPlugIn::onGetOriginalMimeType() : %d", uniqueId);
+    return String8("video/passthru");
+}
+
+int DrmPassthruPlugIn::onGetDrmObjectType(
+            int uniqueId, const String8& path, const String8& mimeType) {
+    ALOGV("DrmPassthruPlugIn::onGetDrmObjectType() : %d", uniqueId);
+    return DrmObjectType::UNKNOWN;
+}
+
+int DrmPassthruPlugIn::onCheckRightsStatus(int uniqueId, const String8& path, int action) {
+    ALOGV("DrmPassthruPlugIn::onCheckRightsStatus() : %d", uniqueId);
+    int rightsStatus = RightsStatus::RIGHTS_VALID;
+    return rightsStatus;
+}
+
+status_t DrmPassthruPlugIn::onConsumeRights(int uniqueId, DecryptHandle* decryptHandle,
+            int action, bool reserve) {
+    ALOGV("DrmPassthruPlugIn::onConsumeRights() : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+status_t DrmPassthruPlugIn::onSetPlaybackStatus(int uniqueId, DecryptHandle* decryptHandle,
+            int playbackStatus, int64_t position) {
+    ALOGV("DrmPassthruPlugIn::onSetPlaybackStatus() : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+bool DrmPassthruPlugIn::onValidateAction(int uniqueId, const String8& path,
+            int action, const ActionDescription& description) {
+    ALOGV("DrmPassthruPlugIn::onValidateAction() : %d", uniqueId);
+    return true;
+}
+
+status_t DrmPassthruPlugIn::onRemoveRights(int uniqueId, const String8& path) {
+    ALOGV("DrmPassthruPlugIn::onRemoveRights() : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+status_t DrmPassthruPlugIn::onRemoveAllRights(int uniqueId) {
+    ALOGV("DrmPassthruPlugIn::onRemoveAllRights() : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+status_t DrmPassthruPlugIn::onOpenConvertSession(int uniqueId, int convertId) {
+    ALOGV("DrmPassthruPlugIn::onOpenConvertSession() : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+DrmConvertedStatus* DrmPassthruPlugIn::onConvertData(
+            int uniqueId, int convertId, const DrmBuffer* inputData) {
+    ALOGV("DrmPassthruPlugIn::onConvertData() : %d", uniqueId);
+    DrmBuffer* convertedData = NULL;
+
+    if (NULL != inputData && 0 < inputData->length) {
+        int length = inputData->length;
+        char* data = NULL;
+        data = new char[length];
+        convertedData = new DrmBuffer(data, length);
+        memcpy(convertedData->data, inputData->data, length);
+    }
+    return new DrmConvertedStatus(DrmConvertedStatus::STATUS_OK, convertedData, 0 /*offset*/);
+}
+
+DrmConvertedStatus* DrmPassthruPlugIn::onCloseConvertSession(int uniqueId, int convertId) {
+    ALOGV("DrmPassthruPlugIn::onCloseConvertSession() : %d", uniqueId);
+    return new DrmConvertedStatus(DrmConvertedStatus::STATUS_OK, NULL, 0 /*offset*/);
+}
+
+status_t DrmPassthruPlugIn::onOpenDecryptSession(
+            int uniqueId, DecryptHandle* decryptHandle, int fd, off64_t offset, off64_t length) {
+    ALOGV("DrmPassthruPlugIn::onOpenDecryptSession() : %d", uniqueId);
+
+#ifdef ENABLE_PASSTHRU_DECRYPTION
+    decryptHandle->mimeType = String8("video/passthru");
+    decryptHandle->decryptApiType = DecryptApiType::ELEMENTARY_STREAM_BASED;
+    decryptHandle->status = DRM_NO_ERROR;
+    decryptHandle->decryptInfo = NULL;
+    return DRM_NO_ERROR;
+#endif
+
+    return DRM_ERROR_CANNOT_HANDLE;
+}
+
+status_t DrmPassthruPlugIn::onOpenDecryptSession(
+            int uniqueId, DecryptHandle* decryptHandle, const char* uri) {
+    return DRM_ERROR_CANNOT_HANDLE;
+}
+
+status_t DrmPassthruPlugIn::onCloseDecryptSession(int uniqueId, DecryptHandle* decryptHandle) {
+    ALOGV("DrmPassthruPlugIn::onCloseDecryptSession() : %d", uniqueId);
+    if (NULL != decryptHandle) {
+        if (NULL != decryptHandle->decryptInfo) {
+            delete decryptHandle->decryptInfo; decryptHandle->decryptInfo = NULL;
+        }
+        delete decryptHandle; decryptHandle = NULL;
+    }
+    return DRM_NO_ERROR;
+}
+
+status_t DrmPassthruPlugIn::onInitializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo) {
+    ALOGV("DrmPassthruPlugIn::onInitializeDecryptUnit() : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+status_t DrmPassthruPlugIn::onDecrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) {
+    ALOGV("DrmPassthruPlugIn::onDecrypt() : %d", uniqueId);
+    /**
+     * As a workaround implementation passthru would copy the given
+     * encrypted buffer as it is to decrypted buffer. Note, decBuffer
+     * memory has to be allocated by the caller.
+     */
+    if (NULL != (*decBuffer) && 0 < (*decBuffer)->length) {
+        if ((*decBuffer)->length >= encBuffer->length) {
+            memcpy((*decBuffer)->data, encBuffer->data, encBuffer->length);
+            (*decBuffer)->length = encBuffer->length;
+        } else {
+            ALOGE("decBuffer size (%d) too small to hold %d bytes",
+                (*decBuffer)->length, encBuffer->length);
+            return DRM_ERROR_UNKNOWN;
+        }
+    }
+    return DRM_NO_ERROR;
+}
+
+status_t DrmPassthruPlugIn::onFinalizeDecryptUnit(
+            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) {
+    ALOGV("DrmPassthruPlugIn::onFinalizeDecryptUnit() : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+ssize_t DrmPassthruPlugIn::onPread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off64_t offset) {
+    ALOGV("DrmPassthruPlugIn::onPread() : %d", uniqueId);
+    return 0;
+}
+