Windows2000/private/windows/shell/lmui/shareui/shrpage.cxx
2020-09-30 17:12:32 +02:00

1274 lines
30 KiB
C++

// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1995 - 1995.
// File: shrpage.cxx
// Contents: "Sharing" shell property page extension
// History: 6-Apr-95 BruceFo Created
#include "headers.hxx"
#pragma hdrstop
#include "resource.h"
#include "helpids.h"
#include "dlgnew.hxx"
#include "acl.hxx"
#include "shrinfo.hxx"
#include "shrpage.hxx"
#include "util.hxx"
// Method: CSharingPropertyPage::DlgProcPage, static public
// Synopsis: Dialog Procedure for all CSharingPropertyPage
INT_PTR CALLBACK
CSharingPropertyPage::DlgProcPage(
IN HWND hwnd,
IN UINT msg,
IN WPARAM wParam,
IN LPARAM lParam
)
{
CSharingPropertyPage* pThis = NULL;
if (msg==WM_INITDIALOG)
{
SHARE_PROPSHEETPAGE* sprop = (SHARE_PROPSHEETPAGE*)lParam;
pThis = new CSharingPropertyPage(hwnd, sprop->pszMachine, sprop->pszShareName);
if (NULL != pThis)
{
if (FAILED(pThis->InitInstance()))
{
delete pThis;
pThis = NULL;
}
}
SetWindowLongPtr(hwnd,GWLP_USERDATA,(LPARAM)pThis);
}
else
{
pThis = (CSharingPropertyPage*) GetWindowLongPtr(hwnd,GWLP_USERDATA);
}
if (pThis != NULL)
{
return pThis->_PageProc(hwnd,msg,wParam,lParam);
}
else
{
return FALSE;
}
}
// Member: CSharingPropertyPage::SizeWndProc, public
// Synopsis: "allow" edit window subclass proc to disallow non-numeric
// characters.
// History: 5-Apr-95 BruceFo Created
LRESULT CALLBACK
CSharingPropertyPage::SizeWndProc(
IN HWND hwnd,
IN UINT wMsg,
IN WPARAM wParam,
IN LPARAM lParam
)
{
switch (wMsg)
{
case WM_CHAR:
{
WCHAR chCharCode = (WCHAR)wParam;
if ( (chCharCode == TEXT('\t'))
|| (chCharCode == TEXT('\b'))
|| (chCharCode == TEXT('\n'))
// || (chCharCode == TEXT('\x1b')) // ESCAPE key
)
{
break;
}
if (chCharCode < TEXT('0') || chCharCode > TEXT('9'))
{
// bad key: ignore it
MessageBeep(0xffffffff); // let user know it's an illegal char
return FALSE;
}
break;
}
} // end of switch
CSharingPropertyPage* pThis = (CSharingPropertyPage*)GetWindowLongPtr(GetParent(hwnd),GWLP_USERDATA);
appAssert(NULL != pThis);
appAssert(NULL != pThis->_pfnAllowProc);
return CallWindowProc(pThis->_pfnAllowProc, hwnd, wMsg, wParam, lParam);
}
// Method: CSharingPropertyPage::CSharingPropertyPage, public
// Synopsis: Constructor
CSharingPropertyPage::CSharingPropertyPage(
IN HWND hwndPage,
IN PWSTR pszMachine,
IN PWSTR pszShare
)
:
_hwndPage(hwndPage),
_pszMachine(pszMachine),
_pszShare(pszShare),
_bDirty(FALSE),
_bShareNameChanged(FALSE),
_bPathChanged(FALSE),
_bCommentChanged(FALSE),
_bUserLimitChanged(FALSE),
_bSecDescChanged(FALSE),
_wMaxUsers(DEFAULT_MAX_USERS),
_pCurInfo(NULL),
_pszReplacePath(NULL),
_pfnAllowProc(NULL)
{
INIT_SIG(CSharingPropertyPage);
appAssert(NULL != _pszShare);
}
// Method: CSharingPropertyPage::~CSharingPropertyPage, public
// Synopsis: Destructor
CSharingPropertyPage::~CSharingPropertyPage()
{
CHECK_SIG(CSharingPropertyPage);
delete _pCurInfo;
_pCurInfo = NULL;
delete[] _pszReplacePath;
_pszReplacePath = NULL;
}
// Method: CSharingPropertyPage::InitInstance, public
// Synopsis: Part II of the constuctor process
// Notes: We don't want to handle any errors in constuctor, so this
// method is necessary for the second phase error detection.
HRESULT
CSharingPropertyPage::InitInstance(
VOID
)
{
CHECK_SIG(CSharingPropertyPage);
appDebugOut((DEB_ITRACE, "CSharingPropertyPage::InitInstance\n"));
SHARE_INFO_502* info502;
NET_API_STATUS ret = NetShareGetInfo(_pszMachine, _pszShare, 502, (LPBYTE*)&info502);
if (ret == NERR_Success)
{
_pCurInfo = new CShareInfo(info502);
if (NULL == _pCurInfo)
{
return E_OUTOFMEMORY;
}
if (!_pCurInfo->TakeOwn())
{
return E_OUTOFMEMORY;
}
NetApiBufferFree(info502);
}
else
{
appDebugOut((DEB_ERROR, "Couldn't get info\n"));
return HRESULT_FROM_WIN32(ret);
}
return S_OK;
}
// Method: CSharingPropertyPage::_PageProc, private
// Synopsis: Dialog Procedure for this object
INT_PTR
CSharingPropertyPage::_PageProc(
IN HWND hwnd,
IN UINT msg,
IN WPARAM wParam,
IN LPARAM lParam
)
{
CHECK_SIG(CSharingPropertyPage);
static DWORD aHelpIds[] =
{
IDC_SHARE_SHARENAME, HC_SHARE_SHARENAME,
IDC_SHARE_PATH, HC_SHARE_PATH,
IDC_SHARE_COMMENT, HC_SHARE_COMMENT,
IDC_SHARE_MAXIMUM, HC_SHARE_MAXIMUM,
IDC_SHARE_ALLOW, HC_SHARE_ALLOW,
IDC_SHARE_ALLOW_VALUE, HC_SHARE_ALLOW_VALUE,
IDC_SHARE_PERMISSIONS, HC_SHARE_PERMISSIONS,
0,0
};
switch (msg)
{
case WM_INITDIALOG:
return _OnInitDialog(hwnd, (HWND)wParam, lParam);
case WM_COMMAND:
return _OnCommand(hwnd, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
case WM_NOTIFY:
return _OnNotify(hwnd, (int)wParam, (LPNMHDR)lParam);
case WM_VSCROLL:
// The up/down control changed the edit control: select it again
SendDlgItemMessage(hwnd, IDC_SHARE_ALLOW_VALUE, EM_SETSEL, 0, (LPARAM)-1);
return TRUE;
case WM_HELP:
{
LPHELPINFO lphi = (LPHELPINFO)lParam;
if (lphi->iContextType == HELPINFO_WINDOW) // a control
{
WCHAR szHelp[50];
LoadString(g_hInstance, IDS_HELPFILENAME, szHelp, ARRAYLEN(szHelp));
WinHelp(
(HWND)lphi->hItemHandle,
szHelp,
HELP_WM_HELP,
(DWORD_PTR)aHelpIds);
}
break;
}
case WM_CONTEXTMENU:
{
WCHAR szHelp[50];
LoadString(g_hInstance, IDS_HELPFILENAME, szHelp, ARRAYLEN(szHelp));
WinHelp(
(HWND)wParam,
szHelp,
HELP_CONTEXTMENU,
(DWORD_PTR)aHelpIds);
break;
}
case WM_CLOSE:
// BUGBUG: There is a bug where hitting "ESCAPE" with the focus on the
// MLE for the "allow" text doesn't kill the property sheet unless we
// forward the WM_CLOSE message on to the property sheet root dialog.
return SendMessage(GetParent(hwnd), msg, wParam, lParam);
case WM_DESTROY:
// restore original subclass to window.
appAssert(NULL != GetDlgItem(hwnd,IDC_SHARE_ALLOW_VALUE));
SetWindowLongPtr(GetDlgItem(hwnd,IDC_SHARE_ALLOW_VALUE), GWLP_WNDPROC, (LONG_PTR)_pfnAllowProc);
break;
case WM_NCDESTROY:
return _OnNcDestroy(hwnd);
} // end switch (msg)
return FALSE;
}
// Method: CSharingPropertyPage::_OnInitDialog, private
// Synopsis: WM_INITDIALOG handler
BOOL
CSharingPropertyPage::_OnInitDialog(
IN HWND hwnd,
IN HWND hwndFocus,
IN LPARAM lInitParam
)
{
CHECK_SIG(CSharingPropertyPage);
appDebugOut((DEB_ITRACE, "_OnInitDialog\n"));
SetDialogIconBig(_GetFrameWindow(), IDI_SHARESFLD);
// Subclass allow edit control to disallow non-positive numbers
_pfnAllowProc = (WNDPROC)SetWindowLongPtr(
GetDlgItem(hwnd, IDC_SHARE_ALLOW_VALUE),
GWLP_WNDPROC,
(LONG_PTR)&SizeWndProc);
// use LanMan API constants to set maximum share name & comment lengths
SendDlgItemMessage(hwnd, IDC_SHARE_SHARENAME, EM_LIMITTEXT, NNLEN, 0L);
SendDlgItemMessage(hwnd, IDC_SHARE_PATH, EM_LIMITTEXT, MAX_PATH-1, 0L);
SendDlgItemMessage(hwnd, IDC_SHARE_COMMENT, EM_LIMITTEXT, MAXCOMMENTSZ, 0L);
_InitializeControls(hwnd);
// #if DBG == 1
// Dump(L"_OnInitDialog finished");
// #endif // DBG == 1
return TRUE;
}
// Method: CSharingPropertyPage::_OnCommand, private
// Synopsis: WM_COMMAND handler
BOOL
CSharingPropertyPage::_OnCommand(
IN HWND hwnd,
IN WORD wNotifyCode,
IN WORD wID,
IN HWND hwndCtl
)
{
CHECK_SIG(CSharingPropertyPage);
switch (wID)
{
// Notifications
case IDC_SHARE_SHARENAME:
{
if (EN_CHANGE == wNotifyCode)
{
if (!_fInitializingPage)
{
_bShareNameChanged = TRUE;
_MarkItemDirty();
}
}
return TRUE;
}
case IDC_SHARE_PATH:
{
if (EN_CHANGE == wNotifyCode)
{
if (!_fInitializingPage)
{
_bPathChanged = TRUE;
_MarkItemDirty();
}
}
return TRUE;
}
case IDC_SHARE_COMMENT:
{
if (EN_CHANGE == wNotifyCode)
{
if (!_fInitializingPage)
{
_bCommentChanged = TRUE;
_MarkItemDirty();
}
}
return TRUE;
}
case IDC_SHARE_MAXIMUM:
if (BN_CLICKED == wNotifyCode)
{
// Take away WS_TABSTOP from the "allow users" edit control
HWND hwndEdit = GetDlgItem(hwnd, IDC_SHARE_ALLOW_VALUE);
SetWindowLong(hwndEdit, GWL_STYLE, GetWindowLong(hwndEdit, GWL_STYLE) & ~WS_TABSTOP);
_CacheMaxUses(hwnd);
SetDlgItemText(hwnd, IDC_SHARE_ALLOW_VALUE, L"");
_bUserLimitChanged = TRUE;
_MarkItemDirty();
}
return TRUE;
case IDC_SHARE_ALLOW:
if (BN_CLICKED == wNotifyCode)
{
// Give WS_TABSTOP to the "allow users" edit control
HWND hwndEdit = GetDlgItem(hwnd, IDC_SHARE_ALLOW_VALUE);
SetWindowLong(hwndEdit, GWL_STYLE, GetWindowLong(hwndEdit, GWL_STYLE) | WS_TABSTOP);
// let the spin control set the edit control
SendDlgItemMessage(hwnd, IDC_SHARE_ALLOW_SPIN, UDM_SETPOS, 0, MAKELONG(_wMaxUsers, 0));
SendDlgItemMessage(hwnd, IDC_SHARE_ALLOW_VALUE, EM_SETSEL, 0, (LPARAM)-1);
_bUserLimitChanged = TRUE;
_MarkItemDirty();
}
return TRUE;
case IDC_SHARE_ALLOW_VALUE:
{
if (EN_CHANGE == wNotifyCode)
{
_bUserLimitChanged = TRUE;
_MarkItemDirty();
}
if (EN_SETFOCUS == wNotifyCode)
{
if (1 != IsDlgButtonChecked(hwnd, IDC_SHARE_ALLOW))
{
CheckRadioButton(
hwnd,
IDC_SHARE_MAXIMUM,
IDC_SHARE_ALLOW,
IDC_SHARE_ALLOW);
}
// let the spin control set the edit control
SendDlgItemMessage(hwnd, IDC_SHARE_ALLOW_SPIN, UDM_SETPOS, 0, MAKELONG(_wMaxUsers, 0));
SendDlgItemMessage(hwnd, IDC_SHARE_ALLOW_VALUE, EM_SETSEL, 0, (LPARAM)-1);
_bUserLimitChanged = TRUE;
_MarkItemDirty();
}
if (EN_KILLFOCUS == wNotifyCode)
{
_CacheMaxUses(hwnd);
}
return TRUE;
}
case IDC_SHARE_ALLOW_SPIN:
if (UDN_DELTAPOS == wNotifyCode)
{
if (1 != IsDlgButtonChecked(hwnd, IDC_SHARE_ALLOW))
{
CheckRadioButton(
hwnd,
IDC_SHARE_MAXIMUM,
IDC_SHARE_ALLOW,
IDC_SHARE_ALLOW);
}
_bUserLimitChanged = TRUE;
_MarkItemDirty();
}
return TRUE;
// Commands
case IDC_SHARE_PERMISSIONS:
return _OnPermissions(hwnd);
default:
break;
}
return FALSE;
}
// Method: CSharingPropertyPage::_OnNotify, private
// Synopsis: WM_NOTIFY handler
BOOL
CSharingPropertyPage::_OnNotify(
IN HWND hwnd,
IN int idCtrl,
IN LPNMHDR phdr
)
{
CHECK_SIG(CSharingPropertyPage);
// assume a property sheet notification
return _OnPropertySheetNotify(hwnd, phdr);
}
// Method: CSharingPropertyPage::_OnPropertySheetNotify, private
// Synopsis: WM_NOTIFY handler for the property sheet notification
BOOL
CSharingPropertyPage::_OnPropertySheetNotify(
IN HWND hwnd,
IN LPNMHDR phdr
)
{
CHECK_SIG(CSharingPropertyPage);
switch (phdr->code)
{
case PSN_RESET: // cancel
if (_DoCancel(hwnd))
{
SetWindowLongPtr(hwnd, DWLP_MSGRESULT, FALSE); // go away
}
else
{
SetWindowLongPtr(hwnd, DWLP_MSGRESULT, TRUE);
}
return TRUE;
case PSN_KILLACTIVE: // change to another page
if (_ValidatePage(hwnd))
{
SetWindowLongPtr(hwnd, DWLP_MSGRESULT, PSNRET_NOERROR);
return FALSE;
}
else
{
SetWindowLongPtr(hwnd, DWLP_MSGRESULT, PSNRET_INVALID_NOCHANGEPAGE);
return TRUE;
}
case PSN_APPLY:
if (_DoApply(hwnd))
{
SetWindowLongPtr(hwnd, DWLP_MSGRESULT, FALSE); // go away
}
else
{
SetWindowLongPtr(hwnd, DWLP_MSGRESULT, TRUE);
}
return TRUE;
} // end switch (phdr->code)
return FALSE;
}
// Method: CSharingPropertyPage::_OnNcDestroy, private
// Synopsis: WM_NCDESTROY handler
BOOL
CSharingPropertyPage::_OnNcDestroy(
IN HWND hwnd
)
{
CHECK_SIG(CSharingPropertyPage);
delete this; // do this LAST!
return TRUE;
}
// Method: CSharingPropertyPage::_OnPermissions, private
// Synopsis: WM_COMMAND handler: the permissions button
BOOL
CSharingPropertyPage::_OnPermissions(
IN HWND hwnd
)
{
CHECK_SIG(CSharingPropertyPage);
appAssert(NULL != _pCurInfo);
if (STYPE_SPECIAL & _pCurInfo->GetType())
{
MyErrorDialog(hwnd, IERR_AdminShare);
return TRUE;
}
WCHAR szShareName[NNLEN + 1];
GetDlgItemText(hwnd, IDC_SHARE_SHARENAME, szShareName, ARRAYLEN(szShareName));
// don't trim spaces, this might be an existing share with spaces in its name
PSECURITY_DESCRIPTOR pNewSecDesc = NULL;
PSECURITY_DESCRIPTOR pSecDesc = _pCurInfo->GetSecurityDescriptor();
appAssert(NULL == pSecDesc || IsValidSecurityDescriptor(pSecDesc));
BOOL bSecDescChanged;
LONG err = EditShareAcl(
hwnd,
_pszMachine,
szShareName,
pSecDesc,
&bSecDescChanged,
&pNewSecDesc);
if (bSecDescChanged)
{
_bSecDescChanged = TRUE;
appAssert(IsValidSecurityDescriptor(pNewSecDesc));
_pCurInfo->TransferSecurityDescriptor(pNewSecDesc);
_MarkItemDirty();
}
return TRUE;
}
// Method: CSharingPropertyPage::_InitializeControls, private
// Synopsis: Initialize the controls from scratch
VOID
CSharingPropertyPage::_InitializeControls(
IN HWND hwnd
)
{
_SetControlsToDefaults(hwnd);
_SetControlsFromData(hwnd);
}
// Method: CSharingPropertyPage::_SetControlsToDefaults, private
// Synopsis: Set all the controls on the page to their default values
VOID
CSharingPropertyPage::_SetControlsToDefaults(
IN HWND hwnd
)
{
_fInitializingPage = TRUE;
// Make "Maximum" the default number of users, and clear the value field
// (which the spin button set on creation?).
CheckRadioButton(
hwnd,
IDC_SHARE_MAXIMUM,
IDC_SHARE_ALLOW,
IDC_SHARE_MAXIMUM);
SetDlgItemText(hwnd, IDC_SHARE_ALLOW_VALUE, L"");
// set the spin control range: 1 <--> large number
SendDlgItemMessage(
hwnd,
IDC_SHARE_ALLOW_SPIN,
UDM_SETRANGE,
0,
MAKELONG(g_uiMaxUsers, 1));
SetDlgItemText(hwnd, IDC_SHARE_SHARENAME, L"");
SetDlgItemText(hwnd, IDC_SHARE_PATH, L"");
SetDlgItemText(hwnd, IDC_SHARE_COMMENT, L"");
SetDlgItemText(hwnd, IDC_SHARE_ALLOW_VALUE, L"");
_fInitializingPage = FALSE;
}
// Method: CSharingPropertyPage::SetControlsFromData, private
// Synopsis: From the class variables and current state of the radio
// buttons, set the enabled/disabled state of the buttons, as
// well as filling the controls with the appropriate values.
VOID
CSharingPropertyPage::_SetControlsFromData(
IN HWND hwnd
)
{
appAssert(NULL != _pCurInfo);
_fInitializingPage = TRUE;
SetDlgItemText(hwnd, IDC_SHARE_SHARENAME, _pCurInfo->GetNetname());
SetDlgItemText(hwnd, IDC_SHARE_PATH, _pCurInfo->GetPath());
SetDlgItemText(hwnd, IDC_SHARE_COMMENT, _pCurInfo->GetRemark());
DWORD dwLimit = _pCurInfo->GetMaxUses();
if (dwLimit == SHI_USES_UNLIMITED)
{
_wMaxUsers = DEFAULT_MAX_USERS;
appDebugOut((DEB_ITRACE, "_SetControlsFromData: unlimited users\n"));
CheckRadioButton(
hwnd,
IDC_SHARE_MAXIMUM,
IDC_SHARE_ALLOW,
IDC_SHARE_MAXIMUM);
SetDlgItemText(hwnd, IDC_SHARE_ALLOW_VALUE, L"");
}
else
{
_wMaxUsers = (WORD)dwLimit;
appDebugOut((DEB_ITRACE,
"_SetControlsFromData: max users = %d\n",
_wMaxUsers));
CheckRadioButton(
hwnd,
IDC_SHARE_MAXIMUM,
IDC_SHARE_ALLOW,
IDC_SHARE_ALLOW);
// let the spin control set the edit control
SendDlgItemMessage(hwnd, IDC_SHARE_ALLOW_SPIN, UDM_SETPOS, 0, MAKELONG(_wMaxUsers, 0));
SendDlgItemMessage(hwnd, IDC_SHARE_ALLOW_VALUE, EM_SETSEL, 0, (LPARAM)-1);
}
// Managine a special share?
if (_pCurInfo->GetType() & STYPE_SPECIAL)
{
// Can't change the path or the name
// Making it read-only makes it easier to read than if it were disabled
SendDlgItemMessage(hwnd, IDC_SHARE_SHARENAME, EM_SETREADONLY, (WPARAM)(BOOL)TRUE, 0);
SendDlgItemMessage(hwnd, IDC_SHARE_PATH, EM_SETREADONLY, (WPARAM)(BOOL)TRUE, 0);
}
_fInitializingPage = FALSE;
}
// Method: CSharingPropertyPage::_MarkItemDirty, private
// Synopsis: A change has made such that the current item (and page)
// is now dirty
VOID
CSharingPropertyPage::_MarkItemDirty(
VOID
)
{
CHECK_SIG(CSharingPropertyPage);
if (!_fInitializingPage)
{
if (!_bDirty)
{
appDebugOut((DEB_ITRACE, "Marking Sharing page dirty\n"));
_bDirty = TRUE;
PropSheet_Changed(_GetFrameWindow(),_hwndPage);
}
}
}
// Method: CSharingPropertyPage::_ValidatePage, private
// Synopsis: Return TRUE if the current page is valid
BOOL
CSharingPropertyPage::_ValidatePage(
IN HWND hwnd
)
{
CHECK_SIG(CSharingPropertyPage);
appAssert(NULL != _pCurInfo);
if (!_bDirty)
{
// nothing to validate
return TRUE;
}
if (!_bShareNameChanged)
{
appDebugOut((DEB_ITRACE, "_ValidatePage: share name not changed!\n"));
return TRUE;
}
delete[] _pszReplacePath;
_pszReplacePath = NULL;
WCHAR szShareName[MAX_PATH];
GetDlgItemText(hwnd, IDC_SHARE_SHARENAME, szShareName, ARRAYLEN(szShareName));
TrimLeadingAndTrailingSpaces(szShareName);
WCHAR szPath[MAX_PATH];
GetDlgItemText(hwnd, IDC_SHARE_PATH, szPath, ARRAYLEN(szPath));
// Validate the share
if (0 == wcslen(szShareName))
{
MyErrorDialog(hwnd, IERR_BlankShareName);
SetErrorFocus(hwnd, IDC_SHARE_SHARENAME);
return FALSE;
}
HRESULT uTemp;
if (!IsValidShareName(szShareName, &uTemp))
{
MyErrorDialog(hwnd, uTemp);
SetErrorFocus(hwnd, IDC_SHARE_SHARENAME);
return FALSE;
}
// Trying to create a reserved share?
if ( (0 == _wcsicmp(g_szIpcShare, szShareName))
|| (0 == _wcsicmp(g_szAdminShare, szShareName)))
{
MyErrorDialog(hwnd, IERR_SpecialShare);
SetErrorFocus(hwnd, IDC_SHARE_SHARENAME);
return FALSE;
}
// If the user entered some ACL, warn them that we're going to nuke
// it and let the system use its default (since special shares can't
// have their security set).
if (DriveLetterShare(szShareName))
{
if (_bSecDescChanged)
{
DWORD id = MyConfirmationDialog(
hwnd,
MSG_NOSECURITYONSPECIAL,
MB_YESNO | MB_ICONEXCLAMATION);
if (id == IDNO)
{
SetErrorFocus(hwnd, IDC_SHARE_SHARENAME);
return FALSE;
}
_pCurInfo->TransferSecurityDescriptor(NULL);
}
}
// Check for downlevel accessibility
// CODEWORK we should really get rid of this at some point -- JonN 7/18/97
ULONG nType;
if (NERR_Success != NetpPathType(NULL, szShareName, &nType, INPT_FLAGS_OLDPATHS))
{
DWORD id = MyConfirmationDialog(
hwnd,
IERR_InaccessibleByDos,
MB_YESNO | MB_ICONEXCLAMATION,
szShareName);
if (id == IDNO)
{
SetErrorFocus(hwnd, IDC_SHARE_SHARENAME);
return FALSE;
}
}
// Check to see that the same share isn't already used, for either the
// same path or for another path.
SHARE_INFO_502* info502;
NET_API_STATUS ret = NetShareGetInfo(_pszMachine, szShareName, 502, (LPBYTE*)&info502);
if (ret == NERR_Success)
{
// It is already shared. Same path?
if (0 == _wcsicmp(info502->shi502_path, szPath))
{
MyErrorDialog(hwnd, IERR_AlreadyExists, szShareName);
SetErrorFocus(hwnd, IDC_SHARE_SHARENAME);
NetApiBufferFree(info502);
return FALSE;
}
// Shared for a different path. Ask the user if they wish to delete
// the old share and create the new one using the name.
DWORD id = ConfirmReplaceShare(hwnd, szShareName, info502->shi502_path, szPath);
if (id == IDNO)
{
SetErrorFocus(hwnd, IDC_SHARE_SHARENAME);
NetApiBufferFree(info502);
return FALSE;
}
else if (id == IDCANCEL)
{
// EndDialog(hwnd, FALSE); // BUGBUG: nuke page
NetApiBufferFree(info502);
return TRUE;
}
else
{
_pszReplacePath = NewDup(info502->shi502_path);
if (NULL == _pszReplacePath)
{
NetApiBufferFree(info502);
MyErrorDialog(hwnd, E_OUTOFMEMORY);
return FALSE;
}
}
NetApiBufferFree(info502);
}
else
{
// NetShareGetInfo failed. This is probably because there
// is no share by this name, in which case it is a pure rename.
appDebugOut((DEB_TRACE,
"NetShareGetInfo failed, 0x%08lx\n",
ret));
}
#if DBG == 1
Dump(L"_ValidatePage finished");
#endif // DBG == 1
return TRUE;
}
// Method: CSharingPropertyPage::_DoApply, public
// Synopsis: If anything has changed, apply the data
BOOL
CSharingPropertyPage::_DoApply(
IN HWND hwnd
)
{
CHECK_SIG(CSharingPropertyPage);
if (_bDirty)
{
appAssert(NULL != _pCurInfo);
NET_API_STATUS ret;
HRESULT hr;
// If either the share name changed or the path changed, we need
// to delete the old share. If the share name changed, it is
// because the user is renaming the share. If the path changed,
// it is because the LanMan APIs don't allow a NetShareSetInfo
// to change the shared path.
if (_bShareNameChanged)
{
// The share name was changed. This is either a pure rename, in
// which case the old share should be deleted and a share with
// the new name created, or the user changed the share name to
// the name of an already existing share, in which case both the
// current share name as well as the share to be replaced must be
// deleted.
if (NULL != _pszReplacePath)
{
// user said to replace an existing share
WCHAR szShareName[NNLEN + 1];
GetDlgItemText(hwnd, IDC_SHARE_SHARENAME, szShareName, ARRAYLEN(szShareName));
TrimLeadingAndTrailingSpaces(szShareName);
ret = NetShareDel(_pszMachine, szShareName, 0);
if (ret != NERR_Success)
{
DisplayError(hwnd, IERR_CANT_DEL_SHARE, ret, szShareName);
delete[] _pszReplacePath;
_pszReplacePath = NULL;
return FALSE;
}
else
{
SHChangeNotify(SHCNE_NETUNSHARE, SHCNF_PATH, _pszReplacePath, NULL);
}
delete[] _pszReplacePath;
_pszReplacePath = NULL;
}
}
if (_bShareNameChanged || _bPathChanged)
{
// delete the existing share
ret = NetShareDel(_pszMachine, _pCurInfo->GetNetname(), 0);
if (ret != NERR_Success)
{
DisplayError(hwnd, IERR_CANT_DEL_SHARE, ret, _pCurInfo->GetNetname());
return FALSE;
}
else
{
// Only if the path changed in the rename should the shell
// be notified
if (_bPathChanged)
{
SHChangeNotify(SHCNE_NETUNSHARE, SHCNF_PATH, _pCurInfo->GetPath(), NULL);
}
}
}
if (_bShareNameChanged)
{
// User wants to rename the share.
WCHAR szShareName[NNLEN + 1];
_pCurInfo->SetDirtyFlag(SHARE_FLAG_ADDED); // special case
GetDlgItemText(hwnd, IDC_SHARE_SHARENAME, szShareName, ARRAYLEN(szShareName));
TrimLeadingAndTrailingSpaces(szShareName);
_pCurInfo->SetNetname(szShareName);
}
if (_bPathChanged)
{
WCHAR szPath[MAX_PATH];
_pCurInfo->SetDirtyFlag(SHARE_FLAG_ADDED); // special case
GetDlgItemText(hwnd, IDC_SHARE_PATH, szPath, ARRAYLEN(szPath));
_pCurInfo->SetPath(szPath);
}
if (_bCommentChanged)
{
WCHAR szComment[MAXCOMMENTSZ + 1];
GetDlgItemText(hwnd, IDC_SHARE_COMMENT, szComment, ARRAYLEN(szComment));
_pCurInfo->SetRemark(szComment);
}
if (_bUserLimitChanged)
{
if (1 == IsDlgButtonChecked(hwnd, IDC_SHARE_MAXIMUM))
{
_pCurInfo->SetMaxUses(SHI_USES_UNLIMITED);
}
else if (1 == IsDlgButtonChecked(hwnd, IDC_SHARE_ALLOW))
{
_CacheMaxUses(hwnd);
_pCurInfo->SetMaxUses(_wMaxUsers);
}
}
// Commit the changes!
ret = _pCurInfo->Commit(_pszMachine);
if (ret != NERR_Success)
{
HRESULT hrMsg = 0;
switch (_pCurInfo->GetFlag())
{
case SHARE_FLAG_ADDED: hrMsg = IERR_CANT_ADD_SHARE; break;
case SHARE_FLAG_MODIFY: hrMsg = IERR_CANT_MODIFY_SHARE; break;
default:
appAssert(!"Illegal flag for a failed commit!");
}
DisplayError(hwnd, hrMsg, ret, _pCurInfo->GetNetname());
}
else
{
_pCurInfo->SetDirtyFlag(0); // clear flag on success
}
_bDirty = FALSE;
_bShareNameChanged = FALSE;
_bPathChanged = FALSE;
_bCommentChanged = FALSE;
_bUserLimitChanged = FALSE;
_bSecDescChanged = FALSE;
PropSheet_UnChanged(_GetFrameWindow(),_hwndPage);
SHChangeNotify(SHCNE_NETSHARE, SHCNF_PATH, _pCurInfo->GetPath(), NULL);
_InitializeControls(hwnd);
}
return TRUE;
}
// Method: CSharingPropertyPage::_DoCancel, public
// Synopsis: Do whatever is necessary to cancel the changes
BOOL
CSharingPropertyPage::_DoCancel(
IN HWND hwnd
)
{
CHECK_SIG(CSharingPropertyPage);
if (_bDirty)
{
_bDirty = FALSE;
_bShareNameChanged = FALSE;
_bPathChanged = FALSE;
_bCommentChanged = FALSE;
_bUserLimitChanged = FALSE;
_bSecDescChanged = FALSE;
PropSheet_UnChanged(_GetFrameWindow(),_hwndPage);
}
return TRUE;
}
// Method: CSharingPropertyPage::_CacheMaxUses, private
// Synopsis:
VOID
CSharingPropertyPage::_CacheMaxUses(
IN HWND hwnd
)
{
CHECK_SIG(CSharingPropertyPage);
DWORD dwRet = (DWORD)SendDlgItemMessage(hwnd, IDC_SHARE_ALLOW_SPIN, UDM_GETPOS, 0, 0);
if (HIWORD(dwRet) != 0)
{
_wMaxUsers = DEFAULT_MAX_USERS;
// Reset the edit control to the new value
SendDlgItemMessage(hwnd, IDC_SHARE_ALLOW_SPIN, UDM_SETPOS, 0, MAKELONG(_wMaxUsers, 0));
SendDlgItemMessage(hwnd, IDC_SHARE_ALLOW_VALUE, EM_SETSEL, 0, (LPARAM)-1);
}
else
{
_wMaxUsers = LOWORD(dwRet);
}
}
#if DBG == 1
// Method: CSharingPropertyPage::Dump, private
// Synopsis:
VOID
CSharingPropertyPage::Dump(
IN PWSTR pszCaption
)
{
CHECK_SIG(CSharingPropertyPage);
appDebugOut((DEB_TRACE,
"CSharingPropertyPage::Dump, %ws\n",
pszCaption));
appDebugOut((DEB_TRACE | DEB_NOCOMPNAME,
"\t This: 0x%08lx\n"
"\t Page: 0x%08lx\n"
"\t Initializing?: %ws\n"
"\t Dirty?: %ws\n"
"\t Share changed?: %ws\n"
"\t Path changed?: %ws\n"
"\tComment changed?: %ws\n"
"\tUsr Lim changed?: %ws\n"
"\t Max uses: %d\n"
"\t _pCurInfo: 0x%08lx\n"
,
this,
_hwndPage,
_fInitializingPage ? L"yes" : L"no",
_bDirty ? L"yes" : L"no",
_bShareNameChanged ? L"yes" : L"no",
_bPathChanged ? L"yes" : L"no",
_bCommentChanged ? L"yes" : L"no",
_bUserLimitChanged ? L"yes" : L"no",
_wMaxUsers,
_pCurInfo
));
_pCurInfo->Dump(L"Current");
}
#endif // DBG == 1