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/*
* CLoadIntegrityValidator.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "CLoadIntegrityValidator.h"
#include "../filesystem/FileStream.h"
#include "../registerTypes/RegisterTypes.h"
CLoadIntegrityValidator::CLoadIntegrityValidator(const boost::filesystem::path &primaryFileName, const boost::filesystem::path &controlFileName, int minimalVersion)
: serializer(this), foundDesync(false)
{
registerTypes(serializer);
primaryFile = make_unique<CLoadFile>(primaryFileName, minimalVersion);
controlFile = make_unique<CLoadFile>(controlFileName, minimalVersion);
assert(primaryFile->serializer.fileVersion == controlFile->serializer.fileVersion);
serializer.fileVersion = primaryFile->serializer.fileVersion;
}
int CLoadIntegrityValidator::read( void * data, unsigned size )
{
assert(primaryFile);
assert(controlFile);
if(!size)
return size;
std::vector<ui8> controlData(size);
auto ret = primaryFile->read(data, size);
if(!foundDesync)
{
controlFile->read(controlData.data(), size);
if(std::memcmp(data, controlData.data(), size))
{
logGlobal->error("Desync found! Position: %d", primaryFile->sfile->tellg());
foundDesync = true;
//throw std::runtime_error("Savegame dsynchronized!");
}
}
return ret;
}
std::unique_ptr<CLoadFile> CLoadIntegrityValidator::decay()
{
primaryFile->serializer.loadedPointers = this->serializer.loadedPointers;
primaryFile->serializer.loadedPointersTypes = this->serializer.loadedPointersTypes;
return std::move(primaryFile);
}
void CLoadIntegrityValidator::checkMagicBytes( const std::string &text )
{
assert(primaryFile);
assert(controlFile);
primaryFile->checkMagicBytes(text);
controlFile->checkMagicBytes(text);
}
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