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/*
* Copyright (C) 2010, 2014 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 "NetworkCacheEncoder.h"
#if ENABLE(NETWORK_CACHE)
namespace WebKit {
namespace NetworkCache {
Encoder::Encoder()
{
}
Encoder::~Encoder()
{
}
uint8_t* Encoder::grow(size_t size)
{
size_t newPosition = m_buffer.size();
m_buffer.grow(m_buffer.size() + size);
return m_buffer.data() + newPosition;
}
void Encoder::updateChecksumForData(SHA1& sha1, const uint8_t* data, size_t size)
{
auto typeSalt = Salt<uint8_t*>::value;
sha1.addBytes(reinterpret_cast<uint8_t*>(&typeSalt), sizeof(typeSalt));
sha1.addBytes(data, size);
}
void Encoder::encodeFixedLengthData(const uint8_t* data, size_t size)
{
updateChecksumForData(m_sha1, data, size);
uint8_t* buffer = grow(size);
memcpy(buffer, data, size);
}
template<typename Type>
void Encoder::encodeNumber(Type value)
{
Encoder::updateChecksumForNumber(m_sha1, value);
uint8_t* buffer = grow(sizeof(Type));
memcpy(buffer, &value, sizeof(Type));
}
void Encoder::encode(bool value)
{
encodeNumber(value);
}
void Encoder::encode(uint8_t value)
{
encodeNumber(value);
}
void Encoder::encode(uint16_t value)
{
encodeNumber(value);
}
void Encoder::encode(uint32_t value)
{
encodeNumber(value);
}
void Encoder::encode(uint64_t value)
{
encodeNumber(value);
}
void Encoder::encode(int32_t value)
{
encodeNumber(value);
}
void Encoder::encode(int64_t value)
{
encodeNumber(value);
}
void Encoder::encode(float value)
{
encodeNumber(value);
}
void Encoder::encode(double value)
{
encodeNumber(value);
}
void Encoder::encodeChecksum()
{
SHA1::Digest hash;
m_sha1.computeHash(hash);
encodeFixedLengthData(hash.data(), hash.size());
}
}
}
#endif
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