308 lines
9.4 KiB
C++
308 lines
9.4 KiB
C++
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#include "stdafx.h"
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#include "resource.h"
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#include "log.h"
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// critical section needed to safely write to the logfile
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CRITICAL_SECTION critical_section;
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//***************************************************************************
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//*
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//* purpose: constructor
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//*
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//***************************************************************************
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MyLogFile::MyLogFile(void)
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{
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_tcscpy(m_szLogFileName, _T(""));
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_tcscpy(m_szLogFileName_Full, _T(""));
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_tcscpy(m_szLogPreLineInfo, _T(""));
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_tcscpy(m_szLogPreLineInfo2, _T(""));
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m_bDisplayTimeStamp = TRUE;
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m_bDisplayPreLineInfo = TRUE;
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m_bFlushLogToDisk = FALSE;
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m_hFile = NULL;
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// initialize the critical section
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INITIALIZE_CRITICAL_SECTION( &critical_section );
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}
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//***************************************************************************
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//*
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//* purpose: destructor
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//*
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//***************************************************************************
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MyLogFile::~MyLogFile(void)
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{
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DeleteCriticalSection( &critical_section );
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}
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//***************************************************************************
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//*
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//* purpose:
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//*
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//***************************************************************************
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int MyLogFile::LogFileCreate(TCHAR *lpLogFileName )
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{
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int iReturn = FALSE;
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TCHAR szDrive_only[_MAX_DRIVE];
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TCHAR szPath_only[_MAX_PATH];
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TCHAR szFilename_only[_MAX_PATH];
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TCHAR szFilename_bak[_MAX_PATH];
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LPWSTR pwsz = NULL;
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// because of the global flags and such, we'll make this critical
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EnterCriticalSection( &critical_section );
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if (lpLogFileName == NULL)
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{
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TCHAR szModuleFileName[_MAX_PATH];
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// if a logfilename was not specified then use the module name.
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if (0 == GetModuleFileName(NULL, szModuleFileName, _MAX_PATH))
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{
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_tcscpy(szFilename_only, _T("iis.log"));
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}
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else
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{
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// get only the filename
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_tsplitpath( szModuleFileName, NULL, NULL, szFilename_only, NULL);
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_tcscat(szFilename_only, _T(".LOG"));
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}
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_tcscpy(m_szLogFileName, szFilename_only);
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}
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else
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{
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_tcscpy(m_szLogFileName, lpLogFileName);
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}
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if (GetWindowsDirectory(m_szLogFileName_Full, sizeof(m_szLogFileName_Full)/sizeof(TCHAR)))
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{
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AddPath(m_szLogFileName_Full, m_szLogFileName);
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if (GetFileAttributes(m_szLogFileName_Full) != 0xFFFFFFFF)
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{
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// there is a current .log file already there.
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// if it is larger than 2megs then rename it.
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DWORD dwSize1 = ReturnFileSize(m_szLogFileName_Full);
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if (dwSize1 == 0xFFFFFFFF || dwSize1 > 2000000)
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{
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// unable to retrieve the size of one of those files
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// or the size is bigger than 2megs.
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// backup the old one.
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// Make a backup of the current log file
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_tsplitpath( m_szLogFileName_Full, szDrive_only, szPath_only, szFilename_only, NULL);
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_tcscpy(szFilename_bak, szDrive_only);
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_tcscat(szFilename_bak, szPath_only);
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_tcscat(szFilename_bak, szFilename_only);
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_tcscat(szFilename_bak, _T(".BAK"));
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SetFileAttributes(szFilename_bak, FILE_ATTRIBUTE_NORMAL);
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DeleteFile(szFilename_bak);
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if (MoveFile(m_szLogFileName_Full, szFilename_bak) == 0)
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{
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// This failed
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//MyMessageBox(NULL,_T("LogFile MoveFile Failed"),_T("LogFile Error"), MB_OK | MB_SETFOREGROUND);
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}
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}
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}
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#if defined(UNICODE) || defined(_UNICODE)
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pwsz = m_szLogFileName_Full;
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#else
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pwsz = MakeWideStrFromAnsi( m_szLogFileName_Full);
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#endif
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// Open existing file or create a new one.
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m_hFile = CreateFile(m_szLogFileName_Full,GENERIC_READ | GENERIC_WRITE,FILE_SHARE_READ | FILE_SHARE_WRITE,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
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if (m_hFile == INVALID_HANDLE_VALUE)
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{
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m_hFile = NULL;
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//MyMessageBox(NULL, _T("Unable to create iis setup log file"), _T("LogFile Error"), MB_OK | MB_SETFOREGROUND);
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}
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else
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{
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SetFilePointer( m_hFile, NULL, NULL, FILE_END );
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iReturn = TRUE;
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}
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//LogFileTimeStamp();
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LogFileWrite(_T("LogFile Open. [***** Search on FAIL/MessageBox keywords for failures *****].\r\n"));
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}
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// safe to leave the critical section
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LeaveCriticalSection( &critical_section );
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return iReturn;
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}
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//***************************************************************************
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//*
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//* purpose:
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//*
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//***************************************************************************
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int MyLogFile::LogFileClose(void)
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{
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if (m_hFile)
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{
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LogFileWrite(_T("LogFile Close.\r\n"));
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CloseHandle(m_hFile);
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return TRUE;
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}
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return FALSE;
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}
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//***************************************************************************
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//*
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//* purpose: add stuff to logfile
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//*
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//***************************************************************************
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void MyLogFile::LogFileTimeStamp()
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{
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SYSTEMTIME SystemTime;
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GetLocalTime(&SystemTime);
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m_bDisplayTimeStamp = FALSE;
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m_bDisplayPreLineInfo = FALSE;
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LogFileWrite(_T("[%d/%d/%d %d:%d:%d]\r\n"),SystemTime.wMonth, SystemTime.wDay, SystemTime.wYear,SystemTime.wHour, SystemTime.wMinute, SystemTime.wSecond);
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m_bDisplayTimeStamp = TRUE;
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m_bDisplayPreLineInfo = TRUE;
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}
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//***************************************************************************
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//*
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//* purpose:
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//*
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//***************************************************************************
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#define LOG_STRING_LEN 1000
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void MyLogFile::LogFileWrite(TCHAR *pszFormatString, ...)
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{
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if (m_hFile)
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{
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// because of the global flags and such, we'll make this critical
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EnterCriticalSection( &critical_section );
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va_list args;
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TCHAR pszFullErrMsg[LOG_STRING_LEN];
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char pszFullErrMsgA[LOG_STRING_LEN];
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strcpy(pszFullErrMsgA, "");
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DWORD dwBytesWritten = 0;
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if (_tcslen(pszFormatString) > LOG_STRING_LEN)
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{
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// this will overrun our buffer, just get out
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goto MyLogFile_LogFileWrite_Exit;
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}
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__try
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{
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va_start(args, pszFormatString);
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if (!_vsntprintf(pszFullErrMsg, LOG_STRING_LEN, pszFormatString, args))
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{
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goto MyLogFile_LogFileWrite_Exit;
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}
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va_end(args);
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}
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__except(EXCEPTION_EXECUTE_HANDLER)
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{
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goto MyLogFile_LogFileWrite_Exit;
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}
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if (pszFullErrMsg)
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{
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#if defined(UNICODE) || defined(_UNICODE)
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// convert to ascii then write to stream
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WideCharToMultiByte( CP_ACP, 0, (TCHAR *)pszFullErrMsg, -1, pszFullErrMsgA, LOG_STRING_LEN, NULL, NULL );
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#else
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// the is already ascii so just copy the pointer
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strcpy(pszFullErrMsgA,pszFullErrMsg);
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#endif
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// If the Display timestap is set then display the timestamp
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if (m_bDisplayTimeStamp == TRUE)
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{
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// Get timestamp
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SYSTEMTIME SystemTime;
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GetLocalTime(&SystemTime);
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char szDateandtime[50];
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sprintf(szDateandtime,"[%d/%d/%d %d:%d:%d] ",SystemTime.wMonth, SystemTime.wDay, SystemTime.wYear,SystemTime.wHour, SystemTime.wMinute, SystemTime.wSecond);
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// Write time to stream
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if (m_hFile) {WriteFile(m_hFile,szDateandtime,strlen(szDateandtime),&dwBytesWritten,NULL);}
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}
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char szPrelineWriteString[100];
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char szPrelineWriteString2[100];
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// If the Display timestap is set then display the timestamp
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if (m_bDisplayPreLineInfo == TRUE)
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{
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if (_tcscmp(m_szLogPreLineInfo,_T("")) != 0)
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{
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#if defined(UNICODE) || defined(_UNICODE)
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// convert to ascii
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WideCharToMultiByte( CP_ACP, 0, (TCHAR *)m_szLogPreLineInfo, -1, szPrelineWriteString, 100, NULL, NULL );
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#else
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// the is already ascii so just copy
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strcpy(szPrelineWriteString, m_szLogPreLineInfo);
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#endif
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if (m_hFile) {WriteFile(m_hFile,szPrelineWriteString,strlen(szPrelineWriteString),&dwBytesWritten,NULL);}
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}
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if (_tcscmp(m_szLogPreLineInfo2,_T("")) != 0)
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{
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#if defined(UNICODE) || defined(_UNICODE)
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// convert to ascii
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WideCharToMultiByte( CP_ACP, 0, (TCHAR *)m_szLogPreLineInfo2, -1, szPrelineWriteString2, 100, NULL, NULL );
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#else
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// the is already ascii so just copy
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strcpy(szPrelineWriteString2, m_szLogPreLineInfo2);
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#endif
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if (m_hFile) {WriteFile(m_hFile,szPrelineWriteString2,strlen(szPrelineWriteString2),&dwBytesWritten,NULL);}
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}
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}
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// if it does not end if '\r\n' then make one.
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int nLen = strlen(pszFullErrMsgA);
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if (pszFullErrMsgA[nLen-1] != '\n')
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{strcat(pszFullErrMsgA, "\r\n");}
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else
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{
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if (pszFullErrMsgA[nLen-2] != '\r')
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{
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char * pPointer = NULL;
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pPointer = pszFullErrMsgA + (nLen-1);
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strcpy(pPointer, "\r\n");
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}
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}
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// Write Regular data to stream
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if (m_hFile)
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{
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WriteFile(m_hFile,pszFullErrMsgA,strlen(pszFullErrMsgA),&dwBytesWritten,NULL);
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// since setup can get the rug pulled out from under it from anything
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// make sure the file is flushed to disk
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if (m_bFlushLogToDisk)
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{
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FlushFileBuffers(m_hFile);
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}
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}
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}
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MyLogFile_LogFileWrite_Exit:
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// safe to leave the critical section
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LeaveCriticalSection( &critical_section );
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}
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}
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