NetworkCacheCoders.cpp [plain text]
#include "config.h"
#include "NetworkCacheCoders.h"
#if ENABLE(NETWORK_CACHE)
#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)
{
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()) {
result = CString();
return true;
}
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)
{
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)
{
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()) {
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<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));
}
void Coder<WebCore::HTTPHeaderMap>::encode(Encoder& encoder, const WebCore::HTTPHeaderMap& headers)
{
encoder << static_cast<uint64_t>(headers.size());
for (auto& keyValue : headers) {
encoder << keyValue.key;
encoder << keyValue.value;
}
}
bool Coder<WebCore::HTTPHeaderMap>::decode(Decoder& decoder, WebCore::HTTPHeaderMap& headers)
{
uint64_t headersSize;
if (!decoder.decode(headersSize))
return false;
for (uint64_t i = 0; i < headersSize; ++i) {
String name;
if (!decoder.decode(name))
return false;
String value;
if (!decoder.decode(value))
return false;
headers.add(name, value);
}
return true;
}
}
}
#endif