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/*
* Copyright (C) 2011, 2014-2015 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 "NetworkCacheCoders.h"
#if ENABLE(NETWORK_CACHE)
#include "WebCoreArgumentCoders.h"
#include <wtf/text/CString.h>
#include <wtf/text/WTFString.h>
namespace WebKit {
namespace NetworkCache {
void Coder<AtomicString>::encode(Encoder& encoder, const AtomicString& atomicString)
{
encoder << atomicString.string();
}
bool Coder<AtomicString>::decode(Decoder& decoder, AtomicString& atomicString)
{
String string;
if (!decoder.decode(string))
return false;
atomicString = string;
return true;
}
void Coder<CString>::encode(Encoder& encoder, const CString& string)
{
// Special case the null string.
if (string.isNull()) {
encoder << std::numeric_limits<uint32_t>::max();
return;
}
uint32_t length = string.length();
encoder << length;
encoder.encodeFixedLengthData(reinterpret_cast<const uint8_t*>(string.data()), length);
}
bool Coder<CString>::decode(Decoder& decoder, CString& result)
{
uint32_t length;
if (!decoder.decode(length))
return false;
if (length == std::numeric_limits<uint32_t>::max()) {
// This is the null string.
result = CString();
return true;
}
// Before allocating the string, make sure that the decoder buffer is big enough.
if (!decoder.bufferIsLargeEnoughToContain<char>(length))
return false;
char* buffer;
CString string = CString::newUninitialized(length, buffer);
if (!decoder.decodeFixedLengthData(reinterpret_cast<uint8_t*>(buffer), length))
return false;
result = string;
return true;
}
void Coder<String>::encode(Encoder& encoder, const String& string)
{
// Special case the null string.
if (string.isNull()) {
encoder << std::numeric_limits<uint32_t>::max();
return;
}
uint32_t length = string.length();
bool is8Bit = string.is8Bit();
encoder << length << is8Bit;
if (is8Bit)
encoder.encodeFixedLengthData(reinterpret_cast<const uint8_t*>(string.characters8()), length * sizeof(LChar));
else
encoder.encodeFixedLengthData(reinterpret_cast<const uint8_t*>(string.characters16()), length * sizeof(UChar));
}
template <typename CharacterType>
static inline bool decodeStringText(Decoder& decoder, uint32_t length, String& result)
{
// Before allocating the string, make sure that the decoder buffer is big enough.
if (!decoder.bufferIsLargeEnoughToContain<CharacterType>(length))
return false;
CharacterType* buffer;
String string = String::createUninitialized(length, buffer);
if (!decoder.decodeFixedLengthData(reinterpret_cast<uint8_t*>(buffer), length * sizeof(CharacterType)))
return false;
result = string;
return true;
}
bool Coder<String>::decode(Decoder& decoder, String& result)
{
uint32_t length;
if (!decoder.decode(length))
return false;
if (length == std::numeric_limits<uint32_t>::max()) {
// This is the null string.
result = String();
return true;
}
bool is8Bit;
if (!decoder.decode(is8Bit))
return false;
if (is8Bit)
return decodeStringText<LChar>(decoder, length, result);
return decodeStringText<UChar>(decoder, length, result);
}
void Coder<WebCore::CertificateInfo>::encode(Encoder& encoder, const WebCore::CertificateInfo& certificateInfo)
{
// FIXME: Cocoa CertificateInfo is a CF object tree. Generalize CF type coding so we don't need to use ArgumentCoder here.
IPC::ArgumentEncoder argumentEncoder;
argumentEncoder << certificateInfo;
encoder << static_cast<uint64_t>(argumentEncoder.bufferSize());
encoder.encodeFixedLengthData(argumentEncoder.buffer(), argumentEncoder.bufferSize());
}
bool Coder<WebCore::CertificateInfo>::decode(Decoder& decoder, WebCore::CertificateInfo& certificateInfo)
{
uint64_t certificateSize;
if (!decoder.decode(certificateSize))
return false;
Vector<uint8_t> data(certificateSize);
if (!decoder.decodeFixedLengthData(data.data(), data.size()))
return false;
IPC::ArgumentDecoder argumentDecoder(data.data(), data.size());
return argumentDecoder.decode(certificateInfo);
}
void Coder<SHA1::Digest>::encode(Encoder& encoder, const SHA1::Digest& digest)
{
encoder.encodeFixedLengthData(digest.data(), sizeof(digest));
}
bool Coder<SHA1::Digest>::decode(Decoder& decoder, SHA1::Digest& digest)
{
return decoder.decodeFixedLengthData(digest.data(), sizeof(digest));
}
}
}
#endif
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