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/*
* Copyright 2015, Mozilla Foundation and contributors
*
* 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
*
*
* 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.
*/
#include <assert.h>
#include <string.h>
#include "BigEndian.h"
#include "ClearKeyDecryptionManager.h"
#include "ClearKeySession.h"
#include "ClearKeyStorage.h"
#include "ClearKeyUtils.h"
#include "psshparser/PsshParser.h"
using namespace mozilla;
using namespace cdm;
ClearKeySession::ClearKeySession(const std::string& aSessionId,
SessionType aSessionType)
: mSessionId(aSessionId), mSessionType(aSessionType) {
CK_LOGD("ClearKeySession ctor %p", this);
}
ClearKeySession::~ClearKeySession() {
CK_LOGD("ClearKeySession dtor %p", this);
}
bool ClearKeySession::Init(InitDataType aInitDataType, const uint8_t* aInitData,
uint32_t aInitDataSize) {
CK_LOGD("ClearKeySession::Init");
if (aInitDataType == InitDataType::kCenc) {
ParseCENCInitData(aInitData, aInitDataSize, mKeyIds);
} else if (aInitDataType == InitDataType::kKeyIds) {
ClearKeyUtils::ParseKeyIdsInitData(aInitData, aInitDataSize, mKeyIds);
} else if (aInitDataType == InitDataType::kWebM &&
aInitDataSize <= kMaxWebmInitDataSize) {
// "webm" initData format is simply the raw bytes of the keyId.
std::vector<uint8_t> keyId;
keyId.assign(aInitData, aInitData + aInitDataSize);
mKeyIds.push_back(keyId);
}
if (mKeyIds.empty()) {
CK_LOGD("ClearKeySession::Init, failed to get keyId");
return false;
}
#ifdef WMF_CLEARKEY_DEBUG
for (const auto& keyId : mKeyIds) {
CK_LOGARRAY("ClearKeySession::Init, KeyId : ", keyId.data(), keyId.size());
}
#endif
return true;
}
SessionType ClearKeySession::Type() const { return mSessionType; }
void ClearKeySession::AddKeyId(const KeyId& aKeyId) {
mKeyIds.push_back(aKeyId);
}