зеркало из https://github.com/mozilla/gecko-dev.git
101 строка
2.5 KiB
C++
101 строка
2.5 KiB
C++
/*
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* Copyright 2015, Mozilla Foundation and contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __ClearKeyUtils_h__
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#define __ClearKeyUtils_h__
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#include <stdint.h>
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#include <string>
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#include <vector>
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#include <assert.h>
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#include "gmp-api/gmp-decryption.h"
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#define CLEARKEY_KEY_LEN ((size_t)16)
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#if 0
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void CK_Log(const char* aFmt, ...);
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#define CK_LOGE(...) CK_Log(__VA_ARGS__)
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#define CK_LOGD(...) CK_Log(__VA_ARGS__)
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#define CK_LOGW(...) CK_Log(__VA_ARGS__)
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#else
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#define CK_LOGE(...)
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#define CK_LOGD(...)
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#define CK_LOGW(...)
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#endif
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struct GMPPlatformAPI;
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extern GMPPlatformAPI* GetPlatform();
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typedef std::vector<uint8_t> KeyId;
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typedef std::vector<uint8_t> Key;
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struct KeyIdPair
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{
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KeyId mKeyId;
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Key mKey;
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};
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class ClearKeyUtils
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{
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public:
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static void DecryptAES(const std::vector<uint8_t>& aKey,
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std::vector<uint8_t>& aData, std::vector<uint8_t>& aIV);
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static void ParseInitData(const uint8_t* aInitData, uint32_t aInitDataSize,
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std::vector<Key>& aOutKeys);
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static void MakeKeyRequest(const std::vector<KeyId>& aKeyIds,
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std::string& aOutRequest,
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GMPSessionType aSessionType);
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static bool ParseJWK(const uint8_t* aKeyData, uint32_t aKeyDataSize,
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std::vector<KeyIdPair>& aOutKeys,
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GMPSessionType aSessionType);
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static const char* SessionTypeToString(GMPSessionType aSessionType);
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static bool IsValidSessionId(const char* aBuff, uint32_t aLength);
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};
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template<class Container, class Element>
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inline bool
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Contains(const Container& aContainer, const Element& aElement)
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{
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return aContainer.find(aElement) != aContainer.end();
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}
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class AutoLock {
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public:
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explicit AutoLock(GMPMutex* aMutex)
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: mMutex(aMutex)
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{
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assert(aMutex);
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if (mMutex) {
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mMutex->Acquire();
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}
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}
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~AutoLock() {
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if (mMutex) {
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mMutex->Release();
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}
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}
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private:
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GMPMutex* mMutex;
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};
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GMPMutex* GMPCreateMutex();
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#endif // __ClearKeyUtils_h__
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