Leaked source code of windows server 2003
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// advpext.cpp : Defines the entry point for the DLL application.
//
#include <windows.h>
#include <wininet.h>
#include "util.h"
#include "download.h"
#include "patchapi.h"
#include "resource.h"
#include "patchdownload.h"
#include "sdsutils.h"
#define FILECOUNT 50
PDOWNLOAD_FILEINFO g_pDownloadFileList = NULL;
DWORD g_dwFileCount = 0;
DWORD g_dwArraySize = 0;
HRESULT g_hResult;
HINF g_hInf;
BOOL g_fPreparingDir;
BOOL g_QuietMode = FALSE;
BOOL g_fAbort = FALSE;
HWND g_hProgressDlg = NULL;
HINSTANCE g_hInstance;
HINSTANCE g_hSetupLibrary = NULL;
PFSetupDefaultQueueCallback pfSetupDefaultQueueCallback = NULL;
PFSetupInstallFromInfSection pfSetupInstallFromInfSection = NULL;
PFSetupInitDefaultQueueCallbackEx pfSetupInitDefaultQueueCallbackEx = NULL;
PFSetupTermDefaultQueueCallback pfSetupTermDefaultQueueCallback = NULL;
PFSetupGetLineText pfSetupGetLineText = NULL;
PFSetupFindFirstLine pfSetupFindFirstLine = NULL;
PFSetupFindNextLine pfSetupFindNextLine = NULL;
PFSetupGetStringField pfSetupGetStringField = NULL;
PFSetupDecompressOrCopyFile pfSetupDecompressOrCopyFile = NULL;
BOOL APIENTRY DllMain( HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
{
if(DLL_PROCESS_ATTACH == ul_reason_for_call)
{
InitLogFile();
g_hInstance = (HINSTANCE)hModule;
}
if(DLL_PROCESS_DETACH == ul_reason_for_call)
{
if(g_hLogFile)
CloseHandle(g_hLogFile);
if(g_hSetupLibrary)
FreeLibrary(g_hSetupLibrary);
}
return TRUE;
}
HRESULT WINAPI ProcessFileSection(HINF hInf, HWND hWnd, BOOL fQuietMode, LPCSTR lpszSection, LPCSTR lpszSourceDir,
PATCH_DOWNLOAD_CALLBACK pfn, LPVOID lpvContext)
{
HRESULT hr = S_OK;
PDOWNLOAD_FILEINFO pFileList = NULL;
char szUserName[MAX_PATH] = "", szPassword[MAX_PATH] = "", szUrl[INTERNET_MAX_URL_LENGTH];
TCHAR szSrcDir[MAX_PATH];
DWORD dwFileCount=0;
WriteToLog("ProcessFileSection: InfHandle= %1!lx!, Source Directory = %2\n", hInf, lpszSourceDir);
g_hInf = hInf;
g_fPreparingDir = FALSE;
if(fQuietMode)
{
g_QuietMode = TRUE;
}
if(!g_QuietMode)
{
g_hProgressDlg = CreateDialog(g_hInstance, MAKEINTRESOURCE(IDD_PROGRESSDLG), hWnd, ProgressDlgProc);
if (g_hProgressDlg)
{
ShowWindow(g_hProgressDlg, SW_SHOWNORMAL);
UpdateWindow(g_hProgressDlg);
}
}
SetProgressText(IDS_FILELIST);
hr = GetFileList(hInf, lpszSection, &pFileList, &dwFileCount);
if(FAILED(hr))
{
goto done;
}
if(dwFileCount)
{
if(!pfSetupGetLineText(NULL, hInf, lpszSection, "Url", szUrl, sizeof(szUrl), NULL))
{
hr = HRESULT_FROM_SETUPAPI(GetLastError());
goto done;
}
hr = DownloadAndPatchFiles(dwFileCount, pFileList, szUrl, lpszSourceDir, pfn, lpvContext);
if(FAILED(hr) || g_fAbort)
{
goto done;
}
}
hr = PrepareInstallDirectory(hInf, lpszSection);
done:
if(pFileList)
{
FreeFileList(pFileList);
}
if(g_hProgressDlg)
{
DestroyWindow(g_hProgressDlg);
}
return hr;
}
HRESULT WINAPI GetFileList(HINF hInf, LPCSTR lpszSection, PDOWNLOAD_FILEINFO* pFileList, DWORD* pdwFileCount)
{
HRESULT hr = LoadSetupAPIFuncs();
if(FAILED(hr))
{
return hr;
}
WriteToLog("\nGetting the list of files\n");
g_hResult = S_OK;
//initially we allocate around 50 entries. We reallocate as and when needed
g_dwArraySize = FILECOUNT;
g_pDownloadFileList = (PDOWNLOAD_FILEINFO)ResizeBuffer(NULL, FILECOUNT*sizeof(DOWNLOAD_FILEINFO), FALSE);
if(!g_pDownloadFileList)
{
return HRESULT_FROM_WIN32(GetLastError());
}
g_dwFileCount = 0;
PVOID pContext = pfSetupInitDefaultQueueCallbackEx( NULL, (HWND)INVALID_HANDLE_VALUE, 0, 0, NULL );
if ( pContext == INVALID_HANDLE_VALUE )
{
return HRESULT_FROM_SETUPAPI(GetLastError());
}
WriteToLog("Adding the Following Files\n");
if (!pfSetupInstallFromInfSection( NULL, hInf, lpszSection, SPINST_FILES, NULL,
NULL, SP_COPY_NEWER, (PSP_FILE_CALLBACK)MyFileQueueCallback,
pContext, NULL, NULL ) )
{
pfSetupTermDefaultQueueCallback( pContext );
return HRESULT_FROM_SETUPAPI(GetLastError());
}
pfSetupTermDefaultQueueCallback( pContext );
if(SUCCEEDED(g_hResult))
{
*pFileList = g_pDownloadFileList;
*pdwFileCount = g_dwFileCount;
}
return g_hResult;
}
UINT WINAPI MyFileQueueCallback( PVOID Context,UINT Notification,UINT_PTR parm1,UINT_PTR parm2 )
{
UINT retVal = FILEOP_SKIP;
switch(Notification)
{
case SPFILENOTIFY_STARTDELETE:
case SPFILENOTIFY_STARTRENAME:
case SPFILENOTIFY_COPYERROR:
case SPFILENOTIFY_DELETEERROR:
case SPFILENOTIFY_RENAMEERROR:
break;
case SPFILENOTIFY_STARTCOPY:
{
FILEPATHS *pFilePath;
pFilePath = (FILEPATHS *)parm1;
if (!MyFileSize(pFilePath->Source))
{
DeleteFile(pFilePath->Source);
//If we are preparing the dir for installaion then copy the file to the current path.
//else we are in download mode, add it to the file list if required
if(g_fPreparingDir)
{
if(CopyFile(pFilePath->Target, pFilePath->Source, TRUE))
WriteToLog("Copying %1 file to %2\n", pFilePath->Target, pFilePath->Source);
}
else
{
//Check in the version in inf to see if we need to download
if(IsDownloadedNeeded(pFilePath->Source, pFilePath->Target))
AddToFileList(pFilePath->Source, pFilePath->Target);
}
}
}
break;
case SPFILENOTIFY_NEEDMEDIA:
{
char szFileName[MAX_PATH];
PSOURCE_MEDIA psrcMed;
psrcMed = (PSOURCE_MEDIA)parm1;
wsprintf(szFileName, "%s\\%s", psrcMed->SourcePath, psrcMed->SourceFile);
if(GetFileAttributes(szFileName) == 0xFFFFFFFF )
{
if(g_fPreparingDir)
{
if(GetFileAttributes(szFileName) != 0xFFFFFFFF)
return retVal;
}
HANDLE hTempFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL,
CREATE_NEW, FILE_ATTRIBUTE_TEMPORARY, NULL );
if (hTempFile != INVALID_HANDLE_VALUE)
{
CloseHandle( hTempFile );
}
}
}
default:
return (pfSetupDefaultQueueCallback( Context, Notification, parm1, parm2 ) );
}
return( retVal );
}
BOOL IsDownloadedNeeded(LPCTSTR lpszSrcFilePath, LPCTSTR lpszFilePath)
{
char szVersion[MAX_PATH], szSrcFilePath[MAX_PATH];
INFCONTEXT InfContext;
LPTSTR lp;
LPTSTR lpszSrcName = PathFindFileName(lpszSrcFilePath);
if (!pfSetupFindFirstLine(g_hInf, "SourceDisksFiles", lpszSrcName, &InfContext ))
{
//No SourceDisksFiles entry. Assume that this file needs to be downloaded
return TRUE;
}
DWORD dwMSVer = 0, dwLSVer = 0, dwMSNewFileVer = 0, dwLSNewFileVer = 0;
if(pfSetupGetStringField(&InfContext, 4, szVersion, sizeof(szVersion), NULL))
{
//Get version of file on the machine
ConvertVersionStrToDwords(szVersion, &dwMSNewFileVer, &dwLSNewFileVer);
MyGetVersionFromFile((LPTSTR)lpszFilePath, &dwMSVer, &dwLSVer, TRUE);
}
if(dwMSVer == dwMSNewFileVer && dwLSVer == dwLSNewFileVer)
{
TCHAR szHashFromInf[40], szHashFromFile[40];
if(GetHashidFromINF(lpszSrcName, szHashFromInf, sizeof(szHashFromInf)) &&
GetFilePatchSignatureA(lpszFilePath, PATCH_OPTION_SIGNATURE_MD5, NULL, 0, 0, 0, 0,
sizeof(szHashFromFile), szHashFromFile))
{
if (lstrcmpi(szHashFromFile, szHashFromInf) == 0 )
{
return FALSE;
}
}
return TRUE;
}
if(dwMSVer < dwMSNewFileVer || ((dwMSVer == dwMSNewFileVer) && dwLSVer < dwLSNewFileVer))
{
return TRUE;
}
return FALSE;
}
void AddToFileList(LPCSTR lpszSrc, LPCSTR lpszTarget)
{
TCHAR Signature[40] = ""; // MD5 is 32 hex characters plus terminator
if(g_dwFileCount >= g_dwArraySize)
{
g_dwArraySize = g_dwArraySize + FILECOUNT;
g_pDownloadFileList = (PDOWNLOAD_FILEINFO)ResizeBuffer(g_pDownloadFileList,
g_dwArraySize*sizeof(DOWNLOAD_FILEINFO), FALSE);
if(!g_pDownloadFileList)
{
g_hResult = HRESULT_FROM_WIN32(GetLastError());
return;
}
}
GetFilePatchSignatureA(lpszTarget, PATCH_OPTION_USE_LZX_BEST, NULL, 0 , 0, 0, 0,
sizeof(Signature), Signature);
if ( *Signature )
{
g_pDownloadFileList[g_dwFileCount].lpszExistingFilePatchSignature = StrDup(Signature);
}
else
{
g_pDownloadFileList[g_dwFileCount].lpszExistingFilePatchSignature = NULL;
}
WriteToLog("%1 Destination:%2 Patch Signature:%3\n", PathFindFileName(lpszSrc), lpszTarget, Signature);
g_pDownloadFileList[g_dwFileCount].lpszFileNameToDownload = StrDup(PathFindFileName(lpszSrc));
g_pDownloadFileList[g_dwFileCount].lpszExistingFileToPatchFrom = StrDup(lpszTarget);
g_pDownloadFileList[g_dwFileCount].dwFlags = PATCHFLAG_DOWNLOAD_NEEDED;
g_dwFileCount++;
}
void FreeFileList(PDOWNLOAD_FILEINFO pFileList)
{
int i = g_dwFileCount;
while(i--)
{
if(pFileList[i].lpszFileNameToDownload)
{
LocalFree(pFileList[i].lpszFileNameToDownload);
}
if(pFileList[i].lpszExistingFileToPatchFrom)
{
LocalFree(pFileList[i].lpszExistingFileToPatchFrom);
}
if(pFileList[i].lpszExistingFilePatchSignature)
{
LocalFree(pFileList[i].lpszExistingFilePatchSignature);
}
}
ResizeBuffer(pFileList, 0, 0);
}
HRESULT PrepareInstallDirectory(HINF hInf, LPCSTR lpszSection)
{
g_hResult = S_OK;
g_fPreparingDir = TRUE;
PVOID pContext = pfSetupInitDefaultQueueCallbackEx( NULL, (HWND)INVALID_HANDLE_VALUE, 0, 0, NULL );
if ( pContext == INVALID_HANDLE_VALUE )
{
return HRESULT_FROM_SETUPAPI(GetLastError());
}
WriteToLog("Copying the Following Files from src dir\n");
if (!pfSetupInstallFromInfSection( NULL, hInf, lpszSection, SPINST_FILES, NULL,
NULL, SP_COPY_NEWER, (PSP_FILE_CALLBACK)MyFileQueueCallback,
pContext, NULL, NULL ) )
{
pfSetupTermDefaultQueueCallback( pContext );
return HRESULT_FROM_SETUPAPI(GetLastError());
}
pfSetupTermDefaultQueueCallback( pContext );
return g_hResult;
}
INT_PTR CALLBACK ProgressDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
switch (uMsg)
{
case WM_INITDIALOG:
{
CenterWindow (hDlg, GetDesktopWindow());
}
break;
case WM_COMMAND:
if(LOWORD(wParam) == IDCANCEL)
{
g_fAbort = TRUE;
}
default:
return(FALSE);
}
return(TRUE);
}
BOOL SetProgressText(LPCTSTR lpszText)
{
if(g_hProgressDlg)
{
SetDlgItemText(g_hProgressDlg, IDC_PROGRESSTEXT, lpszText);
}
return TRUE;
}
BOOL SetProgressText(UINT uID)
{
if(g_hProgressDlg)
{
TCHAR szBuffer[MAX_PATH];
LoadString(g_hInstance, uID, szBuffer, sizeof(szBuffer));
SetDlgItemText(g_hProgressDlg, IDC_PROGRESSTEXT, szBuffer);
}
return TRUE;
}
HRESULT LoadSetupAPIFuncs()
{
static BOOL fSetupLibLoaded = -1;
HRESULT hr = S_OK;
if(fSetupLibLoaded != -1)
{
return hr;
}
g_hSetupLibrary = LoadLibrary("SETUPAPI.DLL");
if(!g_hSetupLibrary)
{
hr = HRESULT_FROM_WIN32(GetLastError());
WriteToLog("LoadLibrary for Setuapi.dll failed with error code:%1!lx!\n", hr);
return hr;
}
pfSetupGetStringField = (PFSetupGetStringField) GetProcAddress(g_hSetupLibrary, c_szSetupGetStringField );
pfSetupDefaultQueueCallback = (PFSetupDefaultQueueCallback) GetProcAddress(g_hSetupLibrary, c_szSetupDefaultQueueCallback );
pfSetupInstallFromInfSection = (PFSetupInstallFromInfSection) GetProcAddress(g_hSetupLibrary, c_szSetupInstallFromInfSection );
pfSetupInitDefaultQueueCallbackEx = (PFSetupInitDefaultQueueCallbackEx) GetProcAddress(g_hSetupLibrary, c_szSetupInitDefaultQueueCallbackEx );
pfSetupTermDefaultQueueCallback = (PFSetupTermDefaultQueueCallback) GetProcAddress(g_hSetupLibrary, c_szSetupTermDefaultQueueCallback );
pfSetupGetLineText = (PFSetupGetLineText) GetProcAddress(g_hSetupLibrary, c_szSetupGetLineText );
pfSetupFindFirstLine = (PFSetupFindFirstLine) GetProcAddress(g_hSetupLibrary, c_szSetupFindFirstLine );
pfSetupFindNextLine = (PFSetupFindNextLine) GetProcAddress(g_hSetupLibrary, c_szSetupFindNextLine );
pfSetupDecompressOrCopyFile = (PFSetupDecompressOrCopyFile) GetProcAddress(g_hSetupLibrary, c_szSetupDecompressOrCopyFile );
if (pfSetupDefaultQueueCallback == NULL
|| pfSetupInstallFromInfSection == NULL
|| pfSetupInitDefaultQueueCallbackEx == NULL
|| pfSetupTermDefaultQueueCallback == NULL
|| pfSetupGetLineText == NULL
|| pfSetupFindFirstLine == NULL
|| pfSetupFindNextLine == NULL
|| pfSetupDecompressOrCopyFile == NULL
|| pfSetupGetStringField == NULL )
{
return HRESULT_FROM_WIN32(ERROR_PROC_NOT_FOUND);
}
fSetupLibLoaded = TRUE;
WriteToLog("Setupapi.dll loaded successfully\n");
return hr;
}