khanat-opennel-code/code/ryzom/client/src/permanent_ban.cpp

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2010-05-06 00:08:41 +00:00
// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "stdpch.h"
#include "permanent_ban.h"
#include "nel/misc/file.h"
#include "nel/misc/path.h"
#include "nel/misc/big_file.h"
#include "nel/misc/random.h"
using namespace NLMISC;
#define REGKEY_RYZOM_PATH "Software\\Nevrax\\ryzom"
#define REGKEY_PERMANENT_BAN "PB"
// ************************************************************
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static void setPermanentBanRegistryKey(bool on)
{
#ifndef NL_OS_WINDOWS
nlinfo("Not implemented");
#else
HKEY hKey;
if (RegCreateKey(HKEY_CURRENT_USER, REGKEY_RYZOM_PATH, &hKey)==ERROR_SUCCESS)
{
DWORD permanentBan = on ? 1 : 0;
LONG result = RegSetValueEx(hKey, REGKEY_PERMANENT_BAN, 0, REG_DWORD, (LPBYTE)&permanentBan, 4);
if (result != ERROR_SUCCESS)
{
nlwarning("pb key not created");
}
}
else
{
nlwarning("pb key not created");
}
#endif
}
// ************************************************************
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static bool getPermanentBanRegistryKey()
{
#ifndef NL_OS_WINDOWS
return false; // not implemented
#else
HKEY hKey;
if (RegOpenKeyEx(HKEY_CURRENT_USER, REGKEY_RYZOM_PATH, 0, KEY_READ, &hKey)==ERROR_SUCCESS)
{
DWORD permanentBan;
DWORD type;
DWORD dataSize = sizeof(DWORD);
RegQueryValueEx (hKey, REGKEY_PERMANENT_BAN, 0, &type, (LPBYTE)&permanentBan, &dataSize);
if (type == REG_DWORD && dataSize == sizeof(DWORD))
{
return permanentBan != 0;
}
}
return false;
#endif
}
// ***********************************************************
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static void setPermanentBanFileMarker(const std::string &path, bool on)
{
if (on)
{
try
{
// simply touch a file
COFile f(path);
#ifdef NL_OS_WINDOWS
SetFileAttributes(path.c_str(), FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM);
#endif
}
catch(EStream &e)
{
nlinfo(e.what());
}
}
else
{
CFile::deleteFile(path);
}
}
// ***********************************************************
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static bool getPermanentBanFileMarker(const std::string &path)
{
return CFile::isExists(path);
}
#define PERMANENT_BAN_FILE0 "c:\\3289763c1ecd044e"
#define PERMANENT_BAN_FILE1 "78d0732e50bf2bbd"
// ************************************************************
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void setPermanentBanMarkers(bool on)
{
setPermanentBanRegistryKey(on);
setPermanentBanFileMarker(PERMANENT_BAN_FILE0, on);
setPermanentBanFileMarker(CPath::getWindowsDirectory() + PERMANENT_BAN_FILE1, on);
}
// ************************************************************
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bool testPermanentBanMarkers()
{
/*#ifndef NL_OS_WINDOWS
nlinfo("Not implemented");
return false;
#else
if (getPermanentBanRegistryKey()) return true;
if (getPermanentBanFileMarker(PERMANENT_BAN_FILE0)) return true;
if (getPermanentBanFileMarker(CPath::getWindowsDirectory() + PERMANENT_BAN_FILE1)) return true;
#endif
return false;
*/
return false;
}
// mark a bnp file without corrupting its datas (this force the patch to be applied the next time the client is launched, thus delaying the trouble maker)
static void markBNPFile(std::string &path)
{
CRandom rnd;
rnd.srand((sint32) CTime::getLocalTime());
uint32 nFileSize=CFile::getFileSize(path);
if (!nFileSize) return;
FILE *f = fopen(path.c_str(), "rb+");
if (!f) return;
// Result
if (nlfseek64 (f, nFileSize-4, SEEK_SET) != 0)
{
fclose (f);
return;
}
uint32 nOffsetFromBegining;
if (fread (&nOffsetFromBegining, sizeof(uint32), 1, f) != 1)
{
fclose (f);
return;
}
#ifdef NL_BIG_ENDIAN
NLMISC_BSWAP32(nOffsetFromBegining);
#endif
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if (nlfseek64 (f, nOffsetFromBegining, SEEK_SET) != 0)
{
fclose (f);
return;
}
// Read the file count
uint32 nNbFile;
if (fread (&nNbFile, sizeof(uint32), 1, f) != 1)
{
fclose (f);
return;
}
#ifdef NL_BIG_ENDIAN
NLMISC_BSWAP32(nNbFile);
#endif
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for (uint32 i = 0; i < nNbFile; ++i)
{
char FileName[MAX_PATH];
uint8 nStringSize;
if (fread (&nStringSize, 1, 1, f) != 1)
{
fclose(f);
return;
}
sint64 currPos = nlftell64(f);
if (currPos < 0)
{
fclose(f);
return;
}
if (fread (FileName, 1, nStringSize, f) != nStringSize)
{
fclose (f);
return;
}
FileName[nStringSize] = 0;
for(uint k = 0; k < nStringSize; ++k)
{
if (rnd.rand() & 1) FileName[k] = toupper(FileName[k]);
else FileName[k] = tolower(FileName[k]);
}
if (nlfseek64 (f, currPos, SEEK_SET) != 0)
{
fclose (f);
return;
}
// write shuffled version
if (fwrite(FileName, 1, nStringSize, f) != nStringSize)
{
fclose(f);
return;
}
fflush(f);
uint32 nFileSize2;
if (fread (&nFileSize2, sizeof(uint32), 1, f) != 1)
{
fclose (f);
return;
}
#ifdef NL_BIG_ENDIAN
NLMISC_BSWAP32(nFileSize2);
#endif
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uint32 nFilePos;
if (fread (&nFilePos, sizeof(uint32), 1, f) != 1)
{
fclose (f);
return;
}
#ifdef NL_BIG_ENDIAN
NLMISC_BSWAP32(nFilePos);
#endif
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}
fclose (f);
}
// ************************************************************
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void applyPermanentBanPunishment()
{
// go in the data directory & touch all bnp files so that the client should repatch all its datas
std::vector<std::string> bigFilePaths;
CBigFile::getInstance().getBigFilePaths(bigFilePaths);
for(uint k = 0; k < bigFilePaths.size(); ++k)
{
markBNPFile(bigFilePaths[k]);
}
}