87 lines
2.8 KiB
C++
87 lines
2.8 KiB
C++
/*
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* Copyright (C) 2011 Google Inc. All rights reserved.
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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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*
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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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* 3. Neither the name of Google, Inc. ("Google") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY GOOGLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "Crypto.h"
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#include "Document.h"
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#include "SubtleCrypto.h"
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#include <JavaScriptCore/ArrayBufferView.h>
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#include <wtf/CryptographicallyRandomNumber.h>
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#include <wtf/UUID.h>
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#if OS(DARWIN)
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#include <CommonCrypto/CommonCryptor.h>
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#include <CommonCrypto/CommonRandom.h>
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#endif
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namespace WebCore {
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Crypto::Crypto(ScriptExecutionContext* context)
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: ContextDestructionObserver(context)
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#if ENABLE(WEB_CRYPTO)
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, m_subtle(SubtleCrypto::create(context))
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#endif
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{
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}
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Crypto::~Crypto() = default;
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ExceptionOr<void> Crypto::getRandomValues(ArrayBufferView& array)
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{
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if (!isInt(array.getType()) && !isBigInt(array.getType()))
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return Exception { TypeMismatchError };
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if (array.byteLength() > 65536)
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return Exception { QuotaExceededError };
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#if OS(DARWIN)
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auto rc = CCRandomGenerateBytes(array.baseAddress(), array.byteLength());
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RELEASE_ASSERT(rc == kCCSuccess);
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#else
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cryptographicallyRandomValues(array.baseAddress(), array.byteLength());
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#endif
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return { };
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}
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String Crypto::randomUUID() const
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{
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return createCanonicalUUIDString();
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}
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#if ENABLE(WEB_CRYPTO)
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SubtleCrypto& Crypto::subtle()
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{
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return m_subtle;
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}
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#endif
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}
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