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/*
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(ENCRYPTED_MEDIA)
#include <wtf/Function.h>
#include <wtf/Ref.h>
#include <wtf/RefPtr.h>
#include <wtf/RobinHoodHashMap.h>
#include <wtf/Vector.h>
#include <wtf/text/AtomString.h>
#include <wtf/text/AtomStringHash.h>
namespace WebCore {
class ISOProtectionSystemSpecificHeaderBox;
class SharedBuffer;
class InitDataRegistry {
public:
WEBCORE_EXPORT static InitDataRegistry& shared();
friend class NeverDestroyed<InitDataRegistry>;
RefPtr<SharedBuffer> sanitizeInitData(const AtomString& initDataType, const SharedBuffer&);
WEBCORE_EXPORT std::optional<Vector<Ref<SharedBuffer>>> extractKeyIDs(const AtomString& initDataType, const SharedBuffer&);
struct InitDataTypeCallbacks {
using SanitizeInitDataCallback = Function<RefPtr<SharedBuffer>(const SharedBuffer&)>;
using ExtractKeyIDsCallback = Function<std::optional<Vector<Ref<SharedBuffer>>>(const SharedBuffer&)>;
SanitizeInitDataCallback sanitizeInitData;
ExtractKeyIDsCallback extractKeyIDs;
};
void registerInitDataType(const AtomString& initDataType, InitDataTypeCallbacks&&);
static const AtomString& cencName();
static const AtomString& keyidsName();
static const AtomString& webmName();
static std::optional<Vector<std::unique_ptr<ISOProtectionSystemSpecificHeaderBox>>> extractPsshBoxesFromCenc(const SharedBuffer&);
static std::optional<Vector<Ref<SharedBuffer>>> extractKeyIDsCenc(const SharedBuffer&);
static RefPtr<SharedBuffer> sanitizeCenc(const SharedBuffer&);
private:
InitDataRegistry();
~InitDataRegistry();
MemoryCompactRobinHoodHashMap<AtomString, InitDataTypeCallbacks> m_types;
};
}
#endif // ENABLE(ENCRYPTED_MEDIA)
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