103 lines
3.3 KiB
C++
103 lines
3.3 KiB
C++
/*
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* Copyright (C) 2013 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "CryptoAlgorithmRegistry.h"
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#if ENABLE(WEB_CRYPTO)
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#include "CryptoAlgorithm.h"
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#include <wtf/NeverDestroyed.h>
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namespace WebCore {
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CryptoAlgorithmRegistry& CryptoAlgorithmRegistry::singleton()
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{
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static LazyNeverDestroyed<CryptoAlgorithmRegistry> registry;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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registry.construct();
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});
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return registry;
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}
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CryptoAlgorithmRegistry::CryptoAlgorithmRegistry()
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{
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platformRegisterAlgorithms();
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}
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std::optional<CryptoAlgorithmIdentifier> CryptoAlgorithmRegistry::identifier(const String& name)
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{
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if (name.isEmpty())
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return std::nullopt;
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Locker locker { m_lock };
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// FIXME: How is it helpful to call isolatedCopy on the argument to find?
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auto identifier = m_identifiers.find(name.isolatedCopy());
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if (identifier == m_identifiers.end())
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return std::nullopt;
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return identifier->value;
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}
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String CryptoAlgorithmRegistry::name(CryptoAlgorithmIdentifier identifier)
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{
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Locker locker { m_lock };
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auto contructor = m_constructors.find(static_cast<unsigned>(identifier));
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if (contructor == m_constructors.end())
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return { };
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return contructor->value.first.isolatedCopy();
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}
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RefPtr<CryptoAlgorithm> CryptoAlgorithmRegistry::create(CryptoAlgorithmIdentifier identifier)
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{
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Locker locker { m_lock };
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auto contructor = m_constructors.find(static_cast<unsigned>(identifier));
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if (contructor == m_constructors.end())
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return nullptr;
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return contructor->value.second();
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}
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void CryptoAlgorithmRegistry::registerAlgorithm(const String& name, CryptoAlgorithmIdentifier identifier, CryptoAlgorithmConstructor constructor)
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{
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Locker locker { m_lock };
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ASSERT(!m_identifiers.contains(name));
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ASSERT(!m_constructors.contains(static_cast<unsigned>(identifier)));
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m_identifiers.add(name, identifier);
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m_constructors.add(static_cast<unsigned>(identifier), std::make_pair(name, constructor));
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}
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} // namespace WebCore
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#endif // ENABLE(WEB_CRYPTO)
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