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// FileZilla Server - a Windows ftp server
// Copyright (C) 2002-2004 - Tim Kosse <tim.kosse@gmx.de>
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include "stdafx.h"
#include "FileLogger.h"
#include "Options.h"
//////////////////////////////////////////////////////////////////////
// Konstruktion/Destruktion
//////////////////////////////////////////////////////////////////////
CFileLogger::CFileLogger(COptions *pOptions)
{
m_hLogFile = INVALID_HANDLE_VALUE;
m_pOptions = pOptions;
m_pFileName = NULL;
CheckLogFile();
}
CFileLogger::~CFileLogger()
{
if (m_hLogFile != INVALID_HANDLE_VALUE)
CloseHandle(m_hLogFile);
delete [] m_pFileName;
}
BOOL CFileLogger::Log(LPCTSTR msg)
{
if (m_hLogFile==INVALID_HANDLE_VALUE)
return TRUE;
char* utf8 = ConvToNetwork(msg);
if (!utf8)
return FALSE;
DWORD numwritten;
if (!WriteFile(m_hLogFile, utf8, strlen(utf8), &numwritten, 0) || !WriteFile(m_hLogFile, "\r\n", 2, &numwritten, 0))
{
delete [] utf8;
CloseHandle(m_hLogFile);
m_hLogFile = INVALID_HANDLE_VALUE;
return FALSE;
}
delete [] utf8;
return TRUE;
}
BOOL CFileLogger::CheckLogFile()
{
if (!m_pOptions->GetOptionVal(OPTION_ENABLELOGGING))
{
if (m_hLogFile != INVALID_HANDLE_VALUE)
{
CloseHandle(m_hLogFile);
m_hLogFile = INVALID_HANDLE_VALUE;
}
return TRUE;
}
//Get logfile path
TCHAR path[MAX_PATH + 1000]; //Make it large enough
GetModuleFileName( 0, path, MAX_PATH );
LPTSTR pos=_tcsrchr(path, '\\');
if (pos)
*++pos=0;
_tcscat(path, _T("Logs\\"));
//Get logfile name
_int64 nLogType = m_pOptions->GetOptionVal(OPTION_LOGTYPE);
TCHAR filename[MAX_PATH + 1];
if (!nLogType)
{
_tcscpy(filename, _T("FileZilla Server.log"));
}
else
{
SYSTEMTIME time;
GetLocalTime(&time);
_stprintf(filename, _T("fzs-%d-%02d-%02d.log"), time.wYear, time.wMonth, time.wDay);
}
if (m_hLogFile == INVALID_HANDLE_VALUE || (m_pFileName && _tcscmp(m_pFileName, filename)))
{
TCHAR buffer[MAX_PATH + 1000]; //Make it large enough
_tcscpy(buffer, path);
CreateDirectory(buffer, NULL);
if (m_pFileName)
delete [] m_pFileName;
m_pFileName = new TCHAR[_tcslen(filename)+1];
_tcscpy(m_pFileName, filename);
_tcscat(buffer, filename);
if (m_hLogFile != INVALID_HANDLE_VALUE)
CloseHandle(m_hLogFile);
m_hLogFile = CreateFile(buffer, GENERIC_WRITE|GENERIC_READ, FILE_SHARE_READ, 0, OPEN_ALWAYS, 0, 0);
if (m_hLogFile == INVALID_HANDLE_VALUE)
return FALSE;
SetFilePointer(m_hLogFile, 0, 0, FILE_END);
}
_int64 nLimit = m_pOptions->GetOptionVal(OPTION_LOGLIMITSIZE);
if (nLogType)
{
//Different logfiles for each day
//Find all log files, delete old ones
//Also delete newer ones if total size exceeds limit
//Get current date
SYSTEMTIME time;
FILETIME curFileTime;
GetSystemTime(&time);
SystemTimeToFileTime(&time, &curFileTime);
_int64 nTime = curFileTime.dwLowDateTime + ((_int64)curFileTime.dwHighDateTime<<32);
TCHAR buffer[MAX_PATH + 1000]; //Make it large enough
_tcscpy(buffer, path);
_tcscat(buffer, _T("fzs-*.log"));
WIN32_FIND_DATA FindFileData;
WIN32_FIND_DATA NextFindFileData;
HANDLE hFind;
hFind = FindFirstFile(buffer, &NextFindFileData);
_int64 nDeleteTime = (_int64)m_pOptions->GetOptionVal(OPTION_LOGDELETETIME);
if (nDeleteTime)
nDeleteTime = (nDeleteTime+1) * 60 * 60 * 24 * 10000000;
//Count total size of all logs, delete the oldest log if exceeding limit
_int64 totalsize = 0;
CStdString oldestname;
_int64 oldestDate = 0;
while (hFind != INVALID_HANDLE_VALUE)
{
FindFileData=NextFindFileData;
if (!FindNextFile(hFind, &NextFindFileData))
{
FindClose(hFind);
hFind = INVALID_HANDLE_VALUE;
}
if (!_tcscmp(FindFileData.cFileName, _T(".")) || !_tcscmp(FindFileData.cFileName, _T("..")))
continue;
_int64 size = ((_int64)FindFileData.nFileSizeHigh<<32) + FindFileData.nFileSizeLow;
if (!_tcscmp(FindFileData.cFileName, m_pFileName))
{
totalsize += size;
continue;
}
_int64 curtime=FindFileData.ftLastWriteTime.dwLowDateTime + ((_int64)FindFileData.ftLastWriteTime.dwHighDateTime<<32);
_int64 span = nTime - curtime;
TCHAR filename[MAX_PATH + 1000];
_tcscpy(filename, path);
_tcscat(filename, FindFileData.cFileName);
if (nDeleteTime && span > nDeleteTime)
DeleteFile(filename); //File is too old, delete it
else
{
totalsize += size;
if (curtime < oldestDate || !oldestDate)
{
oldestDate = curtime;
oldestname = filename;
}
}
}
if (_tcscmp(oldestname, _T("")) && nLimit && totalsize > nLimit*1024)
{
DeleteFile(oldestname);
return TRUE;
}
}
//Single logfile, check size...
if (nLimit)
{
_int64 size = GetPosition64(m_hLogFile);
size /= 1024;
if (size > nLimit) //Log file too large, shrink it...
{
int curReadPos = (int)(size * 1024 - (nLimit * 1024) * 0.9); //New log size is 10% smaller than the set limit
int curWritePos =0;
const int bufsize = 16384; // 16KB
char buffer[bufsize];
DWORD numread;
DWORD numwritten;
BOOL bFirst = TRUE;;
do {
SetFilePointer(m_hLogFile, curReadPos, 0, FILE_BEGIN);
if (!ReadFile(m_hLogFile, buffer, bufsize, &numread, 0))
break;
curReadPos += numread;
SetFilePointer(m_hLogFile, curWritePos, 0, FILE_BEGIN);
if (bFirst) //Assure log starts with complete line
{
unsigned int i;
for (i=0; i<numread; i++)
{
if (buffer[i] == '\n')
break;
}
if (i >= (numread-1))
continue;
bFirst = FALSE;
if (!WriteFile(m_hLogFile, buffer + i + 1, numread - i - 1, &numwritten, 0))
break;
}
else
if (!WriteFile(m_hLogFile, buffer, numread, &numwritten, 0))
break;
curWritePos += numwritten;
} while (numread == bufsize);
SetFilePointer(m_hLogFile, curWritePos, 0, FILE_BEGIN);
SetEndOfFile(m_hLogFile);
}
}
return TRUE;
}
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