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windows-nt/Source/XPSP1/NT/printscan/fax/util/shortcut.c

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1997 Microsoft Corporation
Module Name:
shortcut.c
Abstract:
This module contains code to manipulate shortcuts.
Author:
Wesley Witt (wesw) 24-Jul-1997
Revision History:
--*/
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <shlobj.h>
#include <shellapi.h>
#include <commdlg.h>
#include <winspool.h>
#include <tchar.h>
#include "faxreg.h"
#include "faxutil.h"
//
// Cover page filename extension and link filename extension
//
#define CP_FILENAME_EXT TEXT(".cov")
#define LNK_FILENAME_EXT TEXT(".lnk")
#define FILENAME_EXT TEXT('.')
#define MAX_FILENAME_EXT 4
//
// Whether not we've done OLE initialization
//
static BOOL oleInitialized = FALSE;
//
// Find the filename portion given a filename:
// return a pointer to the '.' character if successful
// NULL if there is no extension
//
#define FindFilenameExtension(pFilename) _tcsrchr(pFilename, FILENAME_EXT)
static LPTSTR Platforms[] =
{
TEXT("Windows NT x86"),
TEXT("Windows NT R4000"),
TEXT("Windows NT Alpha_AXP"),
TEXT("Windows NT PowerPC")
};
VOID
InitOle(
VOID
)
/*++
Routine Description:
Perform OLE initialization if necessary
Arguments:
NONE
Return Value:
NONE
--*/
{
if (!oleInitialized) {
HRESULT hResult = CoInitialize(NULL);
if (hResult == S_OK || hResult == S_FALSE) {
oleInitialized = TRUE;
} else {
DebugPrint(( TEXT("OLE initialization failed: %d\n"), hResult ));
}
}
}
VOID
DeinitOle(
VOID
)
/*++
Routine Description:
Perform OLE deinitialization if necessary
Arguments:
NONE
Return Value:
NONE
--*/
{
if (oleInitialized) {
CoUninitialize();
}
}
BOOL
ResolveShortcut(
LPTSTR pLinkName,
LPTSTR pFileName
)
/*++
Routine Description:
Resolve a shortcut to find the destination file
Arguments:
pLinkName - Specifies the name of a link file
pFileName - Points to a buffer for storing the destination filename
Return Value:
TRUE if successful, FALSE otherwise
--*/
{
LPTSTR pExtension;
HRESULT hResult;
IShellLink *pShellLink;
IPersistFile *pPersistFile;
#ifndef UNICODE
LPWSTR pLinkNameW;
#endif
//
// Default to empty string in case of an error
//
*pFileName = 0;
if (!oleInitialized) {
InitOle();
if (!oleInitialized) {
DebugPrint(( TEXT("OLE wasn't initialized successfully\n") ));
return FALSE;
}
}
//
// Make sure the filename has the .LNK extension
//
if ((pExtension = FindFilenameExtension(pLinkName)) == NULL ||
_tcsicmp(pExtension, LNK_FILENAME_EXT) != 0)
{
return FALSE;
}
//
// Get a pointer to IShellLink interface
//
hResult = CoCreateInstance(&CLSID_ShellLink,
NULL,
CLSCTX_INPROC_SERVER,
&IID_IShellLink,
&pShellLink);
if (SUCCEEDED(hResult)) {
//
// Get a pointer to IPersistFile interface
//
hResult = pShellLink->lpVtbl->QueryInterface(pShellLink,
&IID_IPersistFile,
&pPersistFile);
if (SUCCEEDED(hResult)) {
//
// Now resolve the link to find the actually file it refers to
//
#ifdef UNICODE
hResult = pPersistFile->lpVtbl->Load(pPersistFile, pLinkName, STGM_READ);
#else
pLinkNameW = AnsiStringToUnicodeString( pLinkName );
hResult = pPersistFile->lpVtbl->Load(pPersistFile, pLinkNameW, STGM_READ);
MemFree( pLinkNameW );
#endif
if (SUCCEEDED(hResult)) {
hResult = pShellLink->lpVtbl->Resolve(pShellLink, NULL, SLR_NO_UI | 0x00010000);
if (SUCCEEDED(hResult))
pShellLink->lpVtbl->GetPath(pShellLink, pFileName, MAX_PATH, NULL, 0);
}
pPersistFile->lpVtbl->Release(pPersistFile);
}
pShellLink->lpVtbl->Release(pShellLink);
}
return SUCCEEDED(hResult);
}
BOOL
CreateShortcut(
LPTSTR pLinkName,
LPTSTR pFileName
)
/*++
Routine Description:
Create a shortcut from pLinkName to pFileName
Arguments:
pLinkName - Name of the link file
pFileName - Name of the destination file
Return Value:
TRUE if successful, FALSE otherwise
--*/
{
HRESULT hResult;
IShellLink *pShellLink;
IPersistFile *pPersistFile;
#ifndef UNICODE
LPWSTR pLinkNameW;
#endif
if (!oleInitialized) {
InitOle();
if (!oleInitialized) {
DebugPrint(( TEXT("OLE wasn't initialized successfully\n") ));
return FALSE;
}
}
hResult = CoCreateInstance(&CLSID_ShellLink,
NULL,
CLSCTX_INPROC_SERVER,
&IID_IShellLink,
&pShellLink);
if (SUCCEEDED(hResult)) {
hResult = pShellLink->lpVtbl->QueryInterface(pShellLink,
&IID_IPersistFile,
&pPersistFile);
if (SUCCEEDED(hResult)) {
pShellLink->lpVtbl->SetPath(pShellLink, pFileName);
#ifdef UNICODE
hResult = pPersistFile->lpVtbl->Save(pPersistFile, pLinkName, STGM_READ);
#else
pLinkNameW = AnsiStringToUnicodeString( pLinkName );
hResult = pPersistFile->lpVtbl->Save(pPersistFile, pLinkNameW, STGM_READ);
MemFree( pLinkNameW );
#endif
pPersistFile->lpVtbl->Release(pPersistFile);
}
pShellLink->lpVtbl->Release(pShellLink);
}
return SUCCEEDED(hResult);
}
BOOL
IsCoverPageShortcut(
LPCTSTR pLinkName
)
/*++
Routine Description:
Check if a link is a shortcut to some cover page file
Arguments:
pLinkName - Specifies the name of a link file
Return Value:
TRUE if the link file is a shortcut to a cover page file
FALSE otherwise
--*/
{
LPTSTR pExtension;
TCHAR filename[MAX_PATH];
//
// Resolve the link if necessary and check if the final filename has
// the properly extension.
//
return ResolveShortcut((LPTSTR)pLinkName, filename) &&
(pExtension = FindFilenameExtension(filename)) &&
_tcsicmp(pExtension, CP_FILENAME_EXT) == 0;
}
BOOL GetSpecialPath(
int nFolder,
LPTSTR Path
)
/*++
Routine Description:
Get a path from a CSIDL constant
Arguments:
nFolder - CSIDL_ constant
Path - Buffer to receive the path, assume this buffer is at least MAX_PATH+1 chars large
Return Value:
TRUE for success.
FALSE for failure.
--*/
{
HRESULT hr;
LPITEMIDLIST pIdl = NULL;
LPMALLOC IMalloc = NULL;
BOOL fSuccess = FALSE;
hr = SHGetMalloc(&IMalloc);
if (FAILED(hr) ) {
DebugPrint(( TEXT("SHGetMalloc() failed, ec = %x\n"),hr));
goto exit;
}
hr = SHGetSpecialFolderLocation (NULL,
nFolder,
&pIdl);
if (FAILED(hr) ) {
DebugPrint((TEXT("SHGetSpecialFolderLocation(%d) failed, ec = %x\n"),nFolder,hr));
goto exit;
}
hr = SHGetPathFromIDList(pIdl, Path);
if (FAILED(hr) ) {
DebugPrint((TEXT("SHGetPAthFromIDList() failed, ec = %x\n"),hr));
goto exit;
}
fSuccess = TRUE;
exit:
if (IMalloc && pIdl) {
IMalloc->lpVtbl->Free(IMalloc, (void *) pIdl );
}
if (IMalloc) {
IMalloc->lpVtbl->Release(IMalloc) ;
}
return fSuccess;
}
BOOL
GetClientCpDir(
LPTSTR CpDir,
DWORD CpDirSize
)
/*++
Routine Description:
Gets the client coverpage directory.
Arguments:
CpDir - buffer to hold the coverpage dir
CpDirSize - size in bytes of CpDir
Return Value:
Pointer to the client coverpage direcory.
--*/
{
HKEY hKey;
LONG rVal;
DWORD RegType;
TCHAR PartialPathBuffer[MAX_PATH];
DWORD dwSize = sizeof(PartialPathBuffer);
if (!GetSpecialPath(CSIDL_PERSONAL, CpDir )) {
return FALSE;
}
rVal = RegOpenKey(
HKEY_CURRENT_USER,
REGKEY_FAX_SETUP,
&hKey
);
if (rVal != ERROR_SUCCESS) {
return FALSE;
}
rVal = RegQueryValueEx(
hKey,
REGVAL_CP_LOCATION,
0,
&RegType,
(LPBYTE) PartialPathBuffer,
&dwSize
);
if (rVal != ERROR_SUCCESS) {
RegCloseKey( hKey );
return FALSE;
}
RegCloseKey( hKey );
if (PartialPathBuffer[0] && PartialPathBuffer[_tcslen(PartialPathBuffer)-1] != TEXT('\\')) {
_tcscat( PartialPathBuffer, TEXT("\\") );
}
ConcatenatePaths(CpDir, PartialPathBuffer);
//
// make sure that directory exists
//
MakeDirectory(CpDir);
return TRUE;
}
BOOL
GetServerCpDir(
LPCTSTR ServerName OPTIONAL,
LPTSTR CpDir,
DWORD CpDirSize
)
/*++
Routine Description:
Gets the server coverpage directory.
Arguments:
ServerName - server name or NULL
CpDir - buffer to hold the coverpage dir
CpDirSize - size in bytes of CpDir
Return Value:
Pointer to the server coverpage direcory.
--*/
{
TCHAR tmpcp[MAX_PATH];
#undef IDS_COVERPAGE_DIR
#define IDS_COVERPAGE_DIR 627
if (!CpDir) {
return(FALSE);
}
if (ServerName) {
wsprintf( tmpcp, TEXT("\\\\%s\\coverpg$"),ServerName);
} else {
HINSTANCE hResource;
TCHAR ResourceDll[MAX_PATH];
TCHAR RestofPath[MAX_PATH];
if (!GetSpecialPath(CSIDL_COMMON_DOCUMENTS, tmpcp )) {
return(FALSE);
}
ExpandEnvironmentStrings(TEXT("%systemroot%\\system32\\faxocm.dll"),ResourceDll,sizeof(ResourceDll)/sizeof(TCHAR));
hResource = LoadLibraryEx( ResourceDll, 0, LOAD_LIBRARY_AS_DATAFILE );
if (!hResource) {
return(FALSE);
}
if (!MyLoadString(hResource,IDS_COVERPAGE_DIR,RestofPath,sizeof(RestofPath)/sizeof(TCHAR),GetSystemDefaultUILanguage())) {
FreeLibrary( hResource );
return(FALSE);
}
ConcatenatePaths(tmpcp, RestofPath);
FreeLibrary( hResource );
}
if ((DWORD) lstrlen(tmpcp) + 1 > CpDirSize) {
return FALSE;
}
lstrcpy( CpDir,tmpcp ) ;
return(TRUE);
}
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