blob: 3bb11768bf56e3dbd573612935c02a1282026ab7 [file] [log] [blame]
/*
* Copyright (C) 2017 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 "ClearKeySessionLibrary"
#include <utils/Log.h>
#include <media/stagefright/foundation/ABuffer.h>
#include <media/stagefright/foundation/ADebug.h>
#include "ClearKeySessionLibrary.h"
namespace android {
namespace clearkeycas {
Mutex ClearKeySessionLibrary::sSingletonLock;
ClearKeySessionLibrary* ClearKeySessionLibrary::sSingleton = NULL;
ClearKeyCasSession::ClearKeyCasSession(CasPlugin *plugin)
: mPlugin(plugin) {
mKeyInfo[0].valid = mKeyInfo[1].valid = false;
}
ClearKeyCasSession::~ClearKeyCasSession() {
}
ClearKeySessionLibrary* ClearKeySessionLibrary::get() {
Mutex::Autolock lock(sSingletonLock);
if (sSingleton == NULL) {
ALOGV("Instantiating Session Library Singleton.");
sSingleton = new ClearKeySessionLibrary();
}
return sSingleton;
}
ClearKeySessionLibrary::ClearKeySessionLibrary() : mNextSessionId(1) {}
status_t ClearKeySessionLibrary::addSession(
CasPlugin *plugin, CasSessionId *sessionId) {
CHECK(sessionId);
Mutex::Autolock lock(mSessionsLock);
std::shared_ptr<ClearKeyCasSession> session(new ClearKeyCasSession(plugin));
uint8_t *byteArray = (uint8_t *) &mNextSessionId;
sessionId->push_back(byteArray[3]);
sessionId->push_back(byteArray[2]);
sessionId->push_back(byteArray[1]);
sessionId->push_back(byteArray[0]);
mNextSessionId++;
mIDToSessionMap.add(*sessionId, session);
return OK;
}
std::shared_ptr<ClearKeyCasSession> ClearKeySessionLibrary::findSession(
const CasSessionId& sessionId) {
Mutex::Autolock lock(mSessionsLock);
ssize_t index = mIDToSessionMap.indexOfKey(sessionId);
if (index < 0) {
return NULL;
}
return mIDToSessionMap.valueFor(sessionId);
}
void ClearKeySessionLibrary::destroySession(const CasSessionId& sessionId) {
Mutex::Autolock lock(mSessionsLock);
ssize_t index = mIDToSessionMap.indexOfKey(sessionId);
if (index < 0) {
return;
}
std::shared_ptr<ClearKeyCasSession> session = mIDToSessionMap.valueAt(index);
mIDToSessionMap.removeItemsAt(index);
}
void ClearKeySessionLibrary::destroyPlugin(CasPlugin *plugin) {
Mutex::Autolock lock(mSessionsLock);
for (ssize_t index = (ssize_t)mIDToSessionMap.size() - 1; index >= 0; index--) {
std::shared_ptr<ClearKeyCasSession> session = mIDToSessionMap.valueAt(index);
if (session->getPlugin() == plugin) {
mIDToSessionMap.removeItemsAt(index);
}
}
}
} // namespace clearkeycas
} // namespace android