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/*
* Copyright (C) 2013 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.
*/
#include "config.h"
#include "CryptoAlgorithmRegistry.h"
#if ENABLE(SUBTLE_CRYPTO)
#include "CryptoAlgorithm.h"
#include <wtf/Lock.h>
#include <wtf/NeverDestroyed.h>
namespace WebCore {
CryptoAlgorithmRegistry& CryptoAlgorithmRegistry::singleton()
{
static NeverDestroyed<CryptoAlgorithmRegistry> registry;
return registry;
}
static StaticLock registryMutex;
CryptoAlgorithmRegistry::CryptoAlgorithmRegistry()
{
platformRegisterAlgorithms();
}
bool CryptoAlgorithmRegistry::getIdentifierForName(const String& name, CryptoAlgorithmIdentifier& result)
{
if (name.isEmpty())
return false;
std::lock_guard<StaticLock> lock(registryMutex);
auto iter = m_nameToIdentifierMap.find(name.isolatedCopy());
if (iter == m_nameToIdentifierMap.end())
return false;
result = iter->value;
return true;
}
String CryptoAlgorithmRegistry::nameForIdentifier(CryptoAlgorithmIdentifier identifier)
{
std::lock_guard<StaticLock> lock(registryMutex);
return m_identifierToNameMap.get(static_cast<unsigned>(identifier)).isolatedCopy();
}
std::unique_ptr<CryptoAlgorithm> CryptoAlgorithmRegistry::create(CryptoAlgorithmIdentifier identifier)
{
std::lock_guard<StaticLock> lock(registryMutex);
auto iter = m_identifierToConstructorMap.find(static_cast<unsigned>(identifier));
if (iter == m_identifierToConstructorMap.end())
return nullptr;
return iter->value();
}
void CryptoAlgorithmRegistry::registerAlgorithm(const String& name, CryptoAlgorithmIdentifier identifier, CryptoAlgorithmConstructor constructor)
{
std::lock_guard<StaticLock> lock(registryMutex);
bool added = m_nameToIdentifierMap.add(name, identifier).isNewEntry;
ASSERT_UNUSED(added, added);
added = m_identifierToNameMap.add(static_cast<unsigned>(identifier), name).isNewEntry;
ASSERT_UNUSED(added, added);
added = m_identifierToConstructorMap.add(static_cast<unsigned>(identifier), constructor).isNewEntry;
ASSERT_UNUSED(added, added);
}
} // namespace WebCore
#endif // ENABLE(SUBTLE_CRYPTO)
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