Leaked source code of windows server 2003
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#include "shellprv.h"
#include "ids.h"
#include "infotip.h"
#include "datautil.h"
#include <caggunk.h>
#include "pidl.h"
#include "fstreex.h"
#include "views.h"
#include "shitemid.h"
#include "ole2dup.h"
#include "deskfldr.h"
#include "prop.h"
#include "util.h" // GetVariantFromRegistryValue
#include "defcm.h"
#include "cowsite.h"
#pragma hdrstop
//
// HACKHACK: GUIDs for _IsInNameSpace hack
//
// {D6277990-4C6A-11CF-8D87-00AA0060F5BF}
const GUID CLSID_ScheduledTasks = { 0xD6277990, 0x4C6A, 0x11CF, { 0x8D, 0x87, 0x00, 0xAA, 0x00, 0x60, 0xF5, 0xBF } };
// {7007ACC7-3202-11D1-AAD2-00805FC1270E}
const GUID CLSID_NetworkConnections = { 0x7007ACC7, 0x3202, 0x11D1, { 0xAA, 0xD2, 0x00, 0x80, 0x5F, 0xC1, 0x27, 0x0E } };
//
// delegate regitems are a special type of IDLIST. they share the same type as a regular REGITEM however
// they have a different IDLIST format. we are unable to change the format of REGITEM IDLISTs so to facilitate
// delegate objects we store items using the following format:
//
// <DELEGATEITEMID> <folder specific data> <DELEGATEITEMDATA>
//
// DELEGATEITEMID
// is a shell structure which contains information about the folder specific information,
// and a regular ITEMIDLIST header.
//
// <folder specific data>
// this is specific to the IShellFolder that is being merged into the namespace.
//
// <DELEGATEITEMDATA>
// this contains a signature so we can determine if the IDLIST is a special delegate,
// and the CLSID of the IShellFolder which owns this data.
//
// all delegate regitems are allocated using the IDelegateMalloc
// {5e591a74-df96-48d3-8d67-1733bcee28ba}
const GUID CLSID_DelegateItemSig = { 0x5e591a74, 0xdf96, 0x48d3, {0x8d, 0x67, 0x17, 0x33, 0xbc, 0xee, 0x28, 0xba} };
typedef struct
{
CLSID clsidSignature; // == CLSID_DelegateItemSig (indicating this is a delegate object)
CLSID clsidShellFolder; // == CLSID of IShellFolder implementing this delegateitem
} DELEGATEITEMDATA;
typedef UNALIGNED DELEGATEITEMDATA *PDELEGATEITEMDATA;
typedef const UNALIGNED DELEGATEITEMDATA *PCDELEGATEITEMDATA;
// IDREGITEM as implemented in NT5 Beta 3, breaks the ctrlfldr IShellFolder of downlevel
// platforms. The clsid is interpreted as the IDCONTROL's oName and oInfo and these offsets
// are way to big for the following buffer (cBuf). On downlevel platform, when we are lucky,
// the offset is still in memory readable by our process, and we just do random stuff. When
// unlucky we try to read memory which we do not have access to and crash. The IDREGITEMEX
// struct solves this by putting padding between bOrder and the CLSID and filling these bytes
// with 0's. When persisted, downlevel platform will interpret these 0's as oName, oInfo and
// as L'\0' at the beggining of cBuf. A _bFlagsLegacy was also added to handle the NT5 Beta3
// persisted pidls. (stephstm, 7/15/99)
// Note: in the case where CRegFldr::_cbPadding == 0, IDREGITEMEX.rgbPadding[0] is at
// same location as the IDREGITEM.clsid
#pragma pack(1)
typedef struct
{
WORD cb;
BYTE bFlags;
BYTE bOrder;
BYTE rgbPadding[16]; // at least 16 to store the clsid
} IDREGITEMEX;
typedef UNALIGNED IDREGITEMEX *LPIDREGITEMEX;
typedef const UNALIGNED IDREGITEMEX *LPCIDREGITEMEX;
#pragma pack()
STDAPI_(BOOL) IsNameListedUnderKey(LPCTSTR pszFileName, LPCTSTR pszKey);
C_ASSERT(sizeof(IDREGITEMEX) == sizeof(IDREGITEM));
EXTERN_C const IDLREGITEM c_idlNet =
{
{sizeof(IDREGITEM), SHID_ROOT_REGITEM, SORT_ORDER_NETWORK,
{ 0x208D2C60, 0x3AEA, 0x1069, 0xA2,0xD7,0x08,0x00,0x2B,0x30,0x30,0x9D, },}, // CLSID_NetworkPlaces
0,
} ;
EXTERN_C const IDLREGITEM c_idlDrives =
{
{sizeof(IDREGITEM), SHID_ROOT_REGITEM, SORT_ORDER_DRIVES,
{ 0x20D04FE0, 0x3AEA, 0x1069, 0xA2,0xD8,0x08,0x00,0x2B,0x30,0x30,0x9D, },}, // CLSID_MyComputer
0,
} ;
EXTERN_C const IDLREGITEM c_idlInetRoot =
{
{sizeof(IDREGITEM), SHID_ROOT_REGITEM, SORT_ORDER_INETROOT,
{ 0x871C5380, 0x42A0, 0x1069, 0xA2,0xEA,0x08,0x00,0x2B,0x30,0x30,0x9D, },}, // CSIDL_Internet
0,
} ;
EXTERN_C const IDREGITEM c_aidlConnections[] =
{
{sizeof(IDREGITEM), SHID_ROOT_REGITEM, SORT_ORDER_DRIVES,
{ 0x20D04FE0, 0x3AEA, 0x1069, 0xA2,0xD8,0x08,0x00,0x2B,0x30,0x30,0x9D, },}, // CLSID_MyComputer
{sizeof(IDREGITEM), SHID_COMPUTER_REGITEM, 0,
{ 0x21EC2020, 0x3AEA, 0x1069, 0xA2,0xDD,0x08,0x00,0x2B,0x30,0x30,0x9D, },}, // CLSID_ControlPanel
{sizeof(IDREGITEM), SHID_CONTROLPANEL_REGITEM, 0,
{ 0x7007ACC7, 0x3202, 0x11D1, 0xAA,0xD2,0x00,0x80,0x5F,0xC1,0x27,0x0E, },}, // CLSID_NetworkConnections
{ 0 },
};
enum
{
REGORDERTYPE_OUTERBEFORE = -1,
REGORDERTYPE_REQITEM = 0,
REGORDERTYPE_REGITEM,
REGORDERTYPE_DELEGATE,
REGORDERTYPE_OUTERAFTER
};
//
// class that implements the regitems folder
//
// CLSID_RegFolder {0997898B-0713-11d2-A4AA-00C04F8EEB3E}
const GUID CLSID_RegFolder = { 0x997898b, 0x713, 0x11d2, { 0xa4, 0xaa, 0x0, 0xc0, 0x4f, 0x8e, 0xeb, 0x3e } };
class CRegFolderEnum; // forward
class CRegFolder : public CAggregatedUnknown,
public IShellFolder2,
public IContextMenuCB,
public IShellIconOverlay
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void ** ppvObj)
{ return CAggregatedUnknown::QueryInterface(riid, ppvObj); };
STDMETHODIMP_(ULONG) AddRef(void)
{ return CAggregatedUnknown::AddRef(); };
//
// PowerDesk98 passes a CFSFolder to CRegFolder::Release(), so validate
// the pointer before proceeding down the path to iniquity.
//
STDMETHODIMP_(ULONG) Release(void)
{ return _dwSignature == c_dwSignature ?
CAggregatedUnknown::Release() : 0; };
// IShellFolder
STDMETHODIMP ParseDisplayName(HWND hwnd, LPBC pbc, LPOLESTR pszName,
ULONG * pchEaten, LPITEMIDLIST * ppidl, ULONG *pdwAttributes);
STDMETHODIMP EnumObjects(HWND hwnd, DWORD grfFlags, IEnumIDList **ppenumIDList);
STDMETHODIMP BindToObject(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppvOut);
STDMETHODIMP BindToStorage(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppvObj);
STDMETHODIMP CompareIDs(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2);
STDMETHODIMP CreateViewObject (HWND hwndOwner, REFIID riid, void **ppvOut);
STDMETHODIMP GetAttributesOf(UINT cidl, LPCITEMIDLIST * apidl, ULONG *rgfInOut);
STDMETHODIMP GetUIObjectOf(HWND hwndOwner, UINT cidl, LPCITEMIDLIST * apidl,
REFIID riid, UINT * prgfInOut, void **ppvOut);
STDMETHODIMP GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD uFlags, LPSTRRET lpName);
STDMETHODIMP SetNameOf(HWND hwnd, LPCITEMIDLIST pidl, LPCOLESTR pszName, DWORD uFlags,
LPITEMIDLIST * ppidlOut);
// IShellFolder2
STDMETHODIMP GetDefaultSearchGUID(GUID *pGuid);
STDMETHODIMP EnumSearches(IEnumExtraSearch **ppenum);
STDMETHODIMP GetDefaultColumn(DWORD dwRes, ULONG *pSort, ULONG *pDisplay);
STDMETHODIMP GetDefaultColumnState(UINT iColumn, DWORD *pbState);
STDMETHODIMP GetDetailsEx(LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv);
STDMETHODIMP GetDetailsOf(LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *pDetails);
STDMETHODIMP MapColumnToSCID(UINT iColumn, SHCOLUMNID *pscid);
// IShellIconOverlay
STDMETHODIMP GetOverlayIndex(LPCITEMIDLIST pidl, int *pIndex);
STDMETHODIMP GetOverlayIconIndex(LPCITEMIDLIST pidl, int *pIconIndex);
// IContextMenuCB
STDMETHODIMP CallBack(IShellFolder *psf, HWND hwndOwner, IDataObject *pdtobj,
UINT uMsg, WPARAM wParam, LPARAM lParam);
// IRegItemFolder
STDMETHODIMP Initialize(REGITEMSINFO *pri);
protected:
CRegFolder(IUnknown *punkOuter);
~CRegFolder();
// used by the CAggregatedUnknown stuff
HRESULT v_InternalQueryInterface(REFIID riid,void **ppvObj);
HRESULT _GetOverlayInfo(LPCIDLREGITEM pidlr, int *pIndex, BOOL fIconIndex);
LPCITEMIDLIST _GetFolderIDList();
LPCIDLREGITEM _AnyRegItem(UINT cidl, LPCITEMIDLIST apidl[]);
BOOL _AllDelegates(UINT cidl, LPCITEMIDLIST *apidl, IShellFolder **ppsf);
int _ReqItemIndex(LPCIDLREGITEM pidlr);
BYTE _GetOrderPure(LPCIDLREGITEM pidlr);
BYTE _GetOrder(LPCIDLREGITEM pidlr);
int _GetOrderType(LPCITEMIDLIST pidl);
void _GetNameSpaceKey(LPCIDLREGITEM pidlr, LPTSTR pszKeyName, UINT cchKeyName);
LPCIDLREGITEM _IsReg(LPCITEMIDLIST pidl);
PDELEGATEITEMID _IsDelegate(LPCIDLREGITEM pidlr);
HRESULT _CreateDelegateFolder(const CLSID* pclsid, REFIID riid, void **ppv);
HRESULT _GetDelegateFolder(PDELEGATEITEMID pidld, REFIID riid, void **ppv);
BOOL _IsInNameSpace(LPCIDLREGITEM pidlr);
HDCA _ItemArray();
HDCA _DelItemArray();
HRESULT _InitFromMachine(IUnknown *punk, BOOL bEnum);
HRESULT _CreateAndInit(LPCIDLREGITEM pidlr, LPBC pbc, REFIID riid, void **ppv);
HRESULT _BindToItem(LPCIDLREGITEM pidlr, LPBC pbc, REFIID riid, void **ppv, BOOL bOneLevel);
HRESULT _GetInfoTip(LPCIDLREGITEM pidlr, void **ppv);
HRESULT _GetRegItemColumnFromRegistry(LPCIDLREGITEM pidlr, LPCTSTR pszColumnName, LPTSTR pszColumnData, int cchColumnData);
HRESULT _GetRegItemVariantFromRegistry(LPCIDLREGITEM pidlr, LPCTSTR pszColumnName, VARIANT *pv);
void _GetClassKeys(LPCIDLREGITEM pidlr, HKEY *phkCLSID, HKEY *phkBase);
HRESULT _GetDisplayNameFromSelf(LPCIDLREGITEM pidlr, DWORD dwFlags, LPTSTR pszName, UINT cchName);
HRESULT _GetDisplayName(LPCIDLREGITEM pidlr, DWORD dwFlags, LPTSTR pszName, UINT cchName);
HRESULT _DeleteRegItem(LPCIDLREGITEM pidlr);
BOOL _GetDeleteMessage(LPCIDLREGITEM pidlr, LPTSTR pszMsg, int cchMax);
HRESULT _ParseNextLevel(HWND hwnd, LPBC pbc, LPCIDLREGITEM pidlr,
LPOLESTR pwzRest, LPITEMIDLIST *ppidlOut, ULONG *pdwAttributes);
HRESULT _ParseGUIDName(HWND hwnd, LPBC pbc, LPOLESTR pwzDisplayName,
LPITEMIDLIST *ppidlOut, ULONG *pdwAttributes);
HRESULT _ParseThroughItem(LPCIDLREGITEM pidlr, HWND hwnd, LPBC pbc,
LPOLESTR pszName, ULONG *pchEaten,
LPITEMIDLIST *ppidlOut, ULONG *pdwAttributes);
HRESULT _SetAttributes(LPCIDLREGITEM pidlr, BOOL bPerUser, DWORD dwMask, DWORD dwNewBits);
LONG _RegOpenCLSIDUSKey(CLSID clsid, PHUSKEY phk);
ULONG _GetPerUserAttributes(LPCIDLREGITEM pidlr);
HRESULT _AttributesOf(LPCIDLREGITEM pidlr, DWORD dwAttributesNeeded, DWORD *pdwAttributes);
HRESULT _CreateDefExtIconKey(HKEY hkey, UINT cidl, LPCITEMIDLIST *apidl, int iItem,
REFIID riid, void** ppvOut);
BOOL _CanDelete(LPCIDLREGITEM pidlr);
void _Delete(HWND hwnd, UINT uFlags, IDataObject *pdtobj);
HRESULT _AssocCreate(LPCIDLREGITEM pidl, REFIID riid, void **ppv);
//
// inline
//
// Will probably not be expanded inline as _GetOrderPure is a behemoth of a fct
void _FillIDList(const CLSID *pclsid, IDLREGITEM *pidlr)
{
pidlr->idri.cb = sizeof(pidlr->idri) + (WORD)_cbPadding;
pidlr->idri.bFlags = _bFlags;
_SetPIDLRCLSID(pidlr, pclsid);
pidlr->idri.bOrder = _GetOrderPure((LPCIDLREGITEM)pidlr);
};
BOOL _IsDesktop() { return ILIsEmpty(_GetFolderIDList()); }
int _MapToOuterColNo(int iCol);
// CompareIDs Helpers
int _CompareIDsOriginal(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2);
int _CompareIDsFolderFirst(UINT iColumn, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2);
int _CompareIDsAlphabetical(UINT iColumn, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2);
BOOL _IsFolder(LPCITEMIDLIST pidl);
HRESULT _CreateViewObjectFor(LPCIDLREGITEM pidlr, HWND hwnd, REFIID riid, void **ppv, BOOL bOneLevel);
private:
inline UNALIGNED const CLSID& _GetPIDLRCLSID(LPCIDLREGITEM pidlr);
inline void _SetPIDLRCLSID(LPIDLREGITEM pidlr, const CLSID *pclsid);
inline IDLREGITEM* _CreateAndFillIDLREGITEM(const CLSID *pclsid);
BOOL _GetNameFromCache(REFCLSID rclsid, DWORD dwFlags, LPTSTR pszName, UINT cchName);
inline void _ClearNameFromCache();
void _SaveNameInCache(REFCLSID rclsid, DWORD dwFlags, LPTSTR pszName);
private:
enum { c_dwSignature = 0x38394450 }; // "PD98" - PowerDesk 98 hack
DWORD _dwSignature;
LPTSTR _pszMachine;
LPITEMIDLIST _pidl;
IShellFolder2 *_psfOuter;
IShellIconOverlay *_psioOuter;
IPersistFreeThreadedObject *_pftoReg; // cached pointer of last free threaded bind
int _iTypeOuter; // default sort order for outer items
LPCTSTR _pszRegKey;
LPCTSTR _pszSesKey;
REGITEMSPOLICY* _pPolicy;
TCHAR _chRegItem; // parsing prefix, must be TEXT(':')
BYTE _bFlags; // flags field for PIDL construction
DWORD _dwDefAttributes; // default attributes for items
int _nRequiredItems; // # of required items
DWORD _dwSortAttrib; // sorting attributes
DWORD _cbPadding; // see comment in views.h
BYTE _bFlagsLegacy; // see comment in views.h
CLSID _clsidAttributesCache;
ULONG _dwAttributesCache;
ULONG _dwAttributesCacheValid;
LONG _lNameCacheInterlock;
DWORD _dwNameCacheTime;
CLSID _clsidNameCache;
DWORD _dwFlagsNameCache;
TCHAR _szNameCache[64];
REQREGITEM *_aReqItems;
IPersistFreeThreadedObject *_pftoDelegate;
CRITICAL_SECTION _cs;
BOOL _fcs;
friend DWORD CALLBACK _RegFolderPropThreadProc(void *pv);
friend HRESULT CRegFolder_CreateInstance(REGITEMSINFO *pri, IUnknown *punkOuter, REFIID riid, void **ppv);
friend CRegFolderEnum;
};
class CRegFolderEnum : public CObjectWithSite, IEnumIDList
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppvObj);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
// IEnumIDList
STDMETHODIMP Next(ULONG celt, LPITEMIDLIST *rgelt, ULONG *pceltFetched);
STDMETHODIMP Skip(ULONG celt) { return E_NOTIMPL; };
STDMETHODIMP Reset();
STDMETHODIMP Clone(IEnumIDList **ppenum) { return E_NOTIMPL; };
// IObjectWithSite
STDMETHODIMP SetSite(IUnknown* punkSite); // we need to override this
protected:
CRegFolderEnum(CRegFolder* prf, DWORD grfFlags, IEnumIDList* pesf, HDCA dcaItems, HDCA dcaDel, REGITEMSPOLICY* pPolicy);
~CRegFolderEnum();
BOOL _IsRestricted();
BOOL _WrongMachine();
BOOL _TestFolderness(DWORD dwAttribItem);
BOOL _TestHidden(LPCIDLREGITEM pidlRegItem);
BOOL _TestHiddenInWebView(LPCLSID clsidRegItem);
BOOL _TestHiddenInDomain(LPCLSID clsidRegItem);
private:
LONG _cRef;
CRegFolder* _prf; // reg item folder
IEnumIDList* _peidl;
DWORD _grfFlags; // guy we are wrapping
REGITEMSPOLICY* _pPolicy; // controls what items are visible
HDCA _hdca; // DCA of regitem objects
INT _iCur;
HDCA _hdcaDel; // delegate shell folder;
INT _iCurDel; // index into the delegate folder DCA.
IEnumIDList *_peidlDel; // delegate folder enumerator
friend CRegFolder;
};
STDAPI CDelegateMalloc_Create(void *pv, SIZE_T cbSize, WORD wOuter, IMalloc **ppmalloc);
HRESULT ShowHideIconOnlyOnDesktop(const CLSID *pclsid, int StartIndex, int EndIndex, BOOL fHide);
//
// Construction / Destruction and aggregation
//
CRegFolder::CRegFolder(IUnknown *punkOuter) :
_dwSignature(c_dwSignature),
CAggregatedUnknown(punkOuter),
_pidl(NULL),
_pszMachine(NULL),
_psfOuter(NULL),
_lNameCacheInterlock(-1)
{
DllAddRef();
}
CRegFolder::~CRegFolder()
{
IUnknown *punkCached = (IUnknown *)InterlockedExchangePointer((void**)&_pftoReg, NULL);
if (punkCached)
punkCached->Release();
punkCached = (IUnknown *)InterlockedExchangePointer((void**)&_pftoDelegate, NULL);
if (punkCached)
punkCached->Release();
ILFree(_pidl);
Str_SetPtr(&_pszMachine, NULL);
LocalFree(_aReqItems);
SHReleaseOuterInterface(_GetOuter(), (IUnknown **)&_psfOuter); // release _psfOuter
SHReleaseOuterInterface(_GetOuter(), (IUnknown **)&_psioOuter);
if (_fcs)
{
DeleteCriticalSection(&_cs);
}
DllRelease();
}
HRESULT CRegFolder::v_InternalQueryInterface(REFIID riid, void **ppv)
{
static const QITAB qit[] = {
QITABENTMULTI(CRegFolder, IShellFolder, IShellFolder2), // IID_IShellFolder
QITABENT(CRegFolder, IShellFolder2), // IID_IShellFolder2
QITABENT(CRegFolder, IShellIconOverlay), // IID_IShellIconOverlay
{ 0 },
};
HRESULT hr = QISearch(this, qit, riid, ppv);
if (FAILED(hr) && IsEqualIID(CLSID_RegFolder, riid))
{
*ppv = this; // not ref counted
hr = S_OK;
}
return hr;
}
//
// get the pidl used to initialize this namespace
//
LPCITEMIDLIST CRegFolder::_GetFolderIDList()
{
if (!_pidl)
SHGetIDListFromUnk(_psfOuter, &_pidl);
return _pidl;
}
//
// check to see if this pidl is a regitem
//
LPCIDLREGITEM CRegFolder::_IsReg(LPCITEMIDLIST pidl)
{
if (pidl && !ILIsEmpty(pidl))
{
LPCIDLREGITEM pidlr = (LPCIDLREGITEM)pidl;
if ((pidlr->idri.bFlags == _bFlags) &&
((pidl->mkid.cb >= (sizeof(pidlr->idri) + (WORD)_cbPadding)) || _IsDelegate(pidlr)))
{
return pidlr;
}
else if (_cbPadding && _bFlagsLegacy && (pidlr->idri.bFlags == _bFlagsLegacy))
{
// We needed to add padding to the Control Panel regitems. There was CP
// regitems out there without the padding. If there is padding and we fail
// the above case then maybe we are dealing with one of these. (stephstm)
return pidlr;
}
}
return NULL;
}
PDELEGATEITEMID CRegFolder::_IsDelegate(LPCIDLREGITEM pidlr)
{
PDELEGATEITEMID pidld = (PDELEGATEITEMID)pidlr; // save casting below
if ((pidld->cbSize > sizeof(*pidld)) &&
/* note, (int) casts needed to force signed evaluation as we need the < 0 case */
(((int)pidld->cbSize - (int)pidld->cbInner) >= (int)sizeof(DELEGATEITEMDATA)))
{
PDELEGATEITEMDATA pdeidl = (PDELEGATEITEMDATA)&pidld->rgb[pidld->cbInner];
const CLSID clsid = pdeidl->clsidSignature; // alignment
if (IsEqualGUID(clsid, CLSID_DelegateItemSig))
{
return pidld;
}
}
return NULL;
}
BOOL CRegFolder::_AllDelegates(UINT cidl, LPCITEMIDLIST *apidl, IShellFolder **ppsf)
{
*ppsf = NULL;
PDELEGATEITEMID pidld = NULL;
CLSID clsid, clsidFirst;
for (UINT i = 0; i < cidl; i++)
{
LPCIDLREGITEM pidlr = _IsReg(apidl[i]);
if (pidlr)
{
pidld = _IsDelegate(pidlr);
if (pidld)
{
if (i == 0)
{
// get the clsid of the first guy
clsidFirst = _GetPIDLRCLSID(pidlr);
}
else if (clsid = _GetPIDLRCLSID(pidlr), clsidFirst != clsid)
{
pidld = NULL; // not from the same delegate
break;
}
}
else
{
break;
}
}
else
{
pidld = NULL;
break;
}
}
return pidld && SUCCEEDED(_GetDelegateFolder(pidld, IID_PPV_ARG(IShellFolder, ppsf)));
}
__inline IPersistFreeThreadedObject *ExchangeFTO(IPersistFreeThreadedObject **ppfto, IPersistFreeThreadedObject *pfto)
{
return (IPersistFreeThreadedObject *)InterlockedExchangePointer((void**)ppfto, pfto);
}
HRESULT CRegFolder::_CreateDelegateFolder(const CLSID* pclsid, REFIID riid, void **ppv)
{
HRESULT hr;
*ppv = NULL;
// try using the cached delegate (if it exists)
IPersistFreeThreadedObject *pfto = ExchangeFTO(&_pftoDelegate, NULL);
if (pfto)
{
CLSID clsidT;
if (SUCCEEDED(pfto->GetClassID(&clsidT)) && IsEqualGUID(clsidT, *pclsid))
{
// if this fails, ppv will still be NULL
// so we will create a new cache item...
hr = pfto->QueryInterface(riid, ppv);
}
}
if (NULL == *ppv)
{
IDelegateFolder *pdel;
hr = SHExtCoCreateInstance(NULL, pclsid, NULL, IID_PPV_ARG(IDelegateFolder, &pdel));
if (SUCCEEDED(hr))
{
DELEGATEITEMDATA delid = { 0 };
delid.clsidSignature = CLSID_DelegateItemSig;
delid.clsidShellFolder = *pclsid;
IMalloc *pm;
hr = CDelegateMalloc_Create(&delid, sizeof(delid), _bFlags, &pm);
if (SUCCEEDED(hr))
{
hr = pdel->SetItemAlloc(pm);
if (SUCCEEDED(hr))
{
IPersistFolder *ppf;
if (SUCCEEDED(pdel->QueryInterface(IID_PPV_ARG(IPersistFolder, &ppf))))
{
hr = ppf->Initialize(_GetFolderIDList());
ppf->Release();
}
if (SUCCEEDED(hr))
hr = pdel->QueryInterface(riid, ppv);
}
pm->Release();
}
// now, we might be able to cache this guy if he is "free threaded"
if (SUCCEEDED(hr))
{
if (pfto)
{
pfto->Release();
pfto = NULL;
}
if (SUCCEEDED(pdel->QueryInterface(IID_PPV_ARG(IPersistFreeThreadedObject, &pfto))))
{
SHPinDllOfCLSID(pclsid);
}
}
pdel->Release();
}
}
if (pfto)
{
pfto = ExchangeFTO(&_pftoDelegate, pfto);
if (pfto)
pfto->Release(); // protect against race condition or re-entrancy
}
return hr;
}
HRESULT CRegFolder::_GetDelegateFolder(PDELEGATEITEMID pidld, REFIID riid, void **ppv)
{
PDELEGATEITEMDATA pdeidl = (PDELEGATEITEMDATA)&pidld->rgb[pidld->cbInner];
CLSID clsid = pdeidl->clsidShellFolder; // alignment
return _CreateDelegateFolder(&clsid, riid, ppv);
}
//
// returns a ~REFERENCE~ to the CLSID in the pidlr. HintHint: the ref has
// the same scope as the pidlr. This is to replace the pidlr->idri.clsid
// usage. (stephstm)
//
UNALIGNED const CLSID& CRegFolder::_GetPIDLRCLSID(LPCIDLREGITEM pidlr)
{
#ifdef DEBUG
if (_cbPadding && (_bFlagsLegacy != pidlr->idri.bFlags))
{
LPIDREGITEMEX pidriex = (LPIDREGITEMEX)&(pidlr->idri);
for (DWORD i = 0; i < _cbPadding; ++i)
{
ASSERT(0 == pidriex->rgbPadding[i]);
}
}
#endif
PDELEGATEITEMID pidld = _IsDelegate(pidlr);
if (pidld)
{
PDELEGATEITEMDATA pdeidl = (PDELEGATEITEMDATA)&pidld->rgb[pidld->cbInner];
return pdeidl->clsidShellFolder;
}
return (pidlr->idri.bFlags != _bFlagsLegacy) ?
// return the new padded clsid
((UNALIGNED CLSID&)((LPIDREGITEMEX)&(pidlr->idri))->rgbPadding[_cbPadding]) :
// return the old non-padded clsid
(pidlr->idri.clsid);
}
// This fct is called only for IDREGITEMs created within this file. It is not
// called for existing PIDL, so we do not need to check if it is a legacy pidl.
void CRegFolder::_SetPIDLRCLSID(LPIDLREGITEM pidlr, const CLSID *pclsid)
{
LPIDREGITEMEX pidriex = (LPIDREGITEMEX)&(pidlr->idri);
((UNALIGNED CLSID&)pidriex->rgbPadding[_cbPadding]) = *pclsid;
ZeroMemory(pidriex->rgbPadding, _cbPadding);
}
IDLREGITEM* CRegFolder::_CreateAndFillIDLREGITEM(const CLSID *pclsid)
{
IDLREGITEM* pidlRegItem = (IDLREGITEM*)_ILCreate(sizeof(IDLREGITEM) + _cbPadding);
if (pidlRegItem)
{
_FillIDList(pclsid, pidlRegItem);
}
return pidlRegItem;
}
//
// Returns: ptr to the first reg item if there are any
//
LPCIDLREGITEM CRegFolder::_AnyRegItem(UINT cidl, LPCITEMIDLIST apidl[])
{
for (UINT i = 0; i < cidl; i++)
{
LPCIDLREGITEM pidlr = _IsReg(apidl[i]);
if (pidlr)
return pidlr;
}
return NULL;
}
int CRegFolder::_ReqItemIndex(LPCIDLREGITEM pidlr)
{
const CLSID clsid = _GetPIDLRCLSID(pidlr); // alignment
for (int i = _nRequiredItems - 1; i >= 0; i--)
{
if (IsEqualGUID(clsid, *_aReqItems[i].pclsid))
{
break;
}
}
return i;
}
//
// a sort order of 0 means there is not specified sort order for this item
//
BYTE CRegFolder::_GetOrderPure(LPCIDLREGITEM pidlr)
{
BYTE bRet;
int i = _ReqItemIndex(pidlr);
if (i != -1)
{
bRet = _aReqItems[i].bOrder;
}
else
{
HKEY hkey;
TCHAR szKey[MAX_PATH], szCLSID[GUIDSTR_MAX];
HRESULT hr;
SHStringFromGUID(_GetPIDLRCLSID(pidlr), szCLSID, ARRAYSIZE(szCLSID));
bRet = 128; // default for items that do not register a SortOrderIndex
hr = StringCchPrintf(szKey, ARRAYSIZE(szKey), TEXT("CLSID\\%s"), szCLSID);
if (SUCCEEDED(hr))
{
if (ERROR_SUCCESS == RegOpenKeyEx(HKEY_CLASSES_ROOT, szKey, NULL, KEY_QUERY_VALUE, &hkey))
{
DWORD dwOrder, cbSize = sizeof(dwOrder);
if (SHQueryValueEx(hkey, TEXT("SortOrderIndex"), NULL, NULL, (BYTE *)&dwOrder, &cbSize) == ERROR_SUCCESS)
{
// B#221890 - PowerDesk assumes that it can do this:
// Desktop -> First child -> Third child
// and it will get the C: drive. This means that
// My Computer must be the first regitem. So any items
// in front of My Computer are put immediately behind.
if ((SHGetAppCompatFlags(ACF_MYCOMPUTERFIRST) & ACF_MYCOMPUTERFIRST) &&
dwOrder <= SORT_ORDER_DRIVES)
dwOrder = SORT_ORDER_DRIVES + 1;
bRet = (BYTE)dwOrder;
}
RegCloseKey(hkey);
}
}
}
return bRet;
}
BYTE CRegFolder::_GetOrder(LPCIDLREGITEM pidlr)
{
if (!_IsDelegate(pidlr))
{
// If the bOrder values are less than 0x40, then they are the old values
// Therefore compute the new bOrder values for these cases.
if (pidlr->idri.bOrder <= 0x40)
return _GetOrderPure(pidlr);
else
return pidlr->idri.bOrder;
}
else
return 128;
}
//
// validate that this item exists in this name space (look in the registry)
//
BOOL CRegFolder::_IsInNameSpace(LPCIDLREGITEM pidlr)
{
TCHAR szKeyName[MAX_PATH];
if (_IsDelegate(pidlr))
return FALSE; // its a delegate, therefore by default its transient
if (_ReqItemIndex(pidlr) >= 0)
return TRUE;
// HACKHACK: we will return TRUE for Printers, N/W connections and Scheduled tasks
// since they've been moved from My Computer to Control Panel and they
// don't really care where they live
const CLSID clsid = _GetPIDLRCLSID(pidlr); // alignment
if (IsEqualGUID(CLSID_Printers, clsid) ||
IsEqualGUID(CLSID_NetworkConnections, clsid) ||
IsEqualGUID(CLSID_ScheduledTasks, clsid))
{
return TRUE;
}
_GetNameSpaceKey(pidlr, szKeyName, ARRAYSIZE(szKeyName));
// Note that we do not look in the session key,
// since it by definition is transient
return SHRegSubKeyExists(HKEY_LOCAL_MACHINE, szKeyName) ||
SHRegSubKeyExists(HKEY_CURRENT_USER, szKeyName);
}
//
// The "Session key" is a volatile registry key unique to this session.
// A session is a single continuous logon. If Explorer crashes and is
// auto-restarted, the two Explorers share the same session. But if you
// log off and back on, that new Explorer is a new session.
//
//
// The s_SessionKeyName is the name of the session key relative to
// REGSTR_PATH_EXPLORER\SessionInfo. On NT, this is normally the
// Authentication ID, but we pre-initialize it to something safe so
// we don't fault if for some reason we can't get to it. Since
// Win95 supports only one session at a time, it just stays at the
// default value.
//
// Sometimes we want to talk about the full path (SessionInfo\BlahBlah)
// and sometimes just the partial path (BlahBlah) so we wrap it inside
// this goofy structure.
//
union SESSIONKEYNAME {
TCHAR szPath[12+16+1];
struct {
TCHAR szSessionInfo[12]; // strlen("SessionInfo\\")
TCHAR szName[16+1]; // 16 = two DWORDs converted to hex
};
} s_SessionKeyName = {
{ TEXT("SessionInfo\\.Default") }
};
BOOL g_fHaveSessionKeyName = FALSE;
//
// samDesired = a registry security access mask, or the special value
// 0xFFFFFFFF to delete the session key.
// phk = receives the session key on success
//
// NOTE! Only Explorer should delete the session key (when the user
// logs off).
//
STDAPI SHCreateSessionKey(REGSAM samDesired, HKEY *phk)
{
LONG lRes;
*phk = NULL;
if (!g_fHaveSessionKeyName)
{
ENTERCRITICAL;
//
// Build the name of the session key. We use the authentication ID
// which is guaranteed to be unique forever. We can't use the
// Hydra session ID since that can be recycled.
//
// Note: Do not use OpenThreadToken since it will fail if the
// thread is not impersonating. People who do impersonation
// cannot use SHCreateSessionKey anyway since we cache the
// session key on the assumption that there is no impersonation
// going on. (And besides, HKCU is wrong when impersonating.)
//
HANDLE hToken;
if (OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
{
TOKEN_STATISTICS stats;
DWORD cbOut;
if (GetTokenInformation(hToken, TokenStatistics, &stats, sizeof(stats), &cbOut))
{
StringCchPrintf(s_SessionKeyName.szName, ARRAYSIZE(s_SessionKeyName.szName), // ok to truncate
TEXT("%08x%08x"),
stats.AuthenticationId.HighPart,
stats.AuthenticationId.LowPart); // should never truncate
g_fHaveSessionKeyName = TRUE;
}
CloseHandle(hToken);
}
LEAVECRITICAL;
}
HKEY hkExplorer = SHGetShellKey(SHELLKEY_HKCU_EXPLORER, NULL, TRUE);
if (hkExplorer)
{
if (samDesired != 0xFFFFFFFF)
{
DWORD dwDisposition;
lRes = RegCreateKeyEx(hkExplorer, s_SessionKeyName.szPath, 0,
NULL,
REG_OPTION_VOLATILE,
samDesired,
NULL,
phk,
&dwDisposition);
}
else
{
lRes = SHDeleteKey(hkExplorer, s_SessionKeyName.szPath);
}
RegCloseKey(hkExplorer);
}
else
{
lRes = ERROR_ACCESS_DENIED;
}
return HRESULT_FROM_WIN32(lRes);
}
//
// We use a HDCA to store the CLSIDs for the regitems in this folder, this call returns
// that HDCA>
//
HDCA CRegFolder::_ItemArray()
{
HDCA hdca = DCA_Create();
if (hdca)
{
for (int i = 0; i < _nRequiredItems; i++)
{
DCA_AddItem(hdca, *_aReqItems[i].pclsid);
}
DCA_AddItemsFromKey(hdca, HKEY_LOCAL_MACHINE, _pszRegKey);
DCA_AddItemsFromKey(hdca, HKEY_CURRENT_USER, _pszRegKey);
if (_pszSesKey)
{
HKEY hkSession;
if (SUCCEEDED(SHCreateSessionKey(KEY_QUERY_VALUE, &hkSession)))
{
DCA_AddItemsFromKey(hdca, hkSession, _pszSesKey);
RegCloseKey(hkSession);
}
}
}
return hdca;
}
HDCA CRegFolder::_DelItemArray()
{
HDCA hdca = DCA_Create();
if (hdca)
{
TCHAR szKey[MAX_PATH*2];
HRESULT hr = StringCchPrintf(szKey, ARRAYSIZE(szKey), TEXT("%s\\DelegateFolders"), _pszRegKey);
if (SUCCEEDED(hr))
{
DCA_AddItemsFromKey(hdca, HKEY_LOCAL_MACHINE, szKey);
DCA_AddItemsFromKey(hdca, HKEY_CURRENT_USER, szKey);
}
if (_pszSesKey)
{
HKEY hkSession;
if (SUCCEEDED(SHCreateSessionKey(KEY_QUERY_VALUE, &hkSession)))
{
hr = StringCchPrintf(szKey, ARRAYSIZE(szKey), TEXT("%s\\DelegateFolders"), _pszSesKey);
if (SUCCEEDED(hr))
{
DCA_AddItemsFromKey(hdca, hkSession, szKey);
}
RegCloseKey(hkSession);
}
}
}
return hdca;
}
//
// Given our cached machine name, attempt get the object on that machine.
//
HRESULT CRegFolder::_InitFromMachine(IUnknown *punk, BOOL bEnum)
{
HRESULT hr = S_OK;
if (_pszMachine)
{
// prior to Win2K there was IRemoteComputerA/W, we removed IRemoteComputerA and
// made IRemoteComputer map to the W version of the API, therefore we
// thunk the string to its wide version before calling the Initialize method. (daviddv 102099)
IRemoteComputer * premc;
hr = punk->QueryInterface(IID_PPV_ARG(IRemoteComputer, &premc));
if (SUCCEEDED(hr))
{
WCHAR wszName[MAX_PATH];
SHTCharToUnicode(_pszMachine, wszName, ARRAYSIZE(wszName));
hr = premc->Initialize(wszName, bEnum);
premc->Release();
}
}
return hr;
}
//
// Given a pidl, lets get an instance of the namespace that provides it.
// - handles caching accordingly
//
HRESULT CRegFolder::_CreateAndInit(LPCIDLREGITEM pidlr, LPBC pbc, REFIID riid, void **ppv)
{
*ppv = NULL;
HRESULT hr = E_FAIL;
PDELEGATEITEMID pidld = _IsDelegate(pidlr);
if (pidld)
{
IShellFolder *psf;
hr = _GetDelegateFolder(pidld, IID_PPV_ARG(IShellFolder, &psf));
if (SUCCEEDED(hr))
{
hr = psf->BindToObject((LPCITEMIDLIST)pidlr, pbc, riid, ppv);
psf->Release();
}
}
else
{
CLSID clsid = _GetPIDLRCLSID(pidlr); // alignment
// try using the cached pointer
IPersistFreeThreadedObject *pfto = ExchangeFTO(&_pftoReg, NULL);
if (pfto)
{
CLSID clsidT;
if (SUCCEEDED(pfto->GetClassID(&clsidT)) && IsEqualGUID(clsidT, clsid))
{
// if this fails, ppv will still be NULL
// so we will create a new cache item...
hr = pfto->QueryInterface(riid, ppv);
}
}
// cache failed, cocreate it ourself
if (NULL == *ppv)
{
OBJCOMPATFLAGS ocf = SHGetObjectCompatFlags(NULL, &clsid);
if (!(OBJCOMPATF_UNBINDABLE & ocf))
{
//
// HACKHACK - some regitems can only be CoCreated with IID_IShellFolder
// specifically the hummingbird shellext will DebugBreak() bringing
// down the shell... but we can CoCreate() and then QI after...
//
hr = SHExtCoCreateInstance(NULL, &clsid, NULL,
(OBJCOMPATF_COCREATESHELLFOLDERONLY & ocf) ? IID_IShellFolder : riid , ppv);
if (SUCCEEDED(hr))
{
IUnknown *punk = (IUnknown *)*ppv; // avoid casts below
if ((OBJCOMPATF_COCREATESHELLFOLDERONLY & ocf))
{
hr = punk->QueryInterface(riid, ppv);
punk->Release();
punk = (IUnknown *)*ppv; // avoid casts below
}
if (SUCCEEDED(hr))
{
hr = _InitFromMachine(punk, FALSE);
if (SUCCEEDED(hr))
{
IPersistFolder *ppf;
if (SUCCEEDED(punk->QueryInterface(IID_PPV_ARG(IPersistFolder, &ppf))))
{
LPITEMIDLIST pidlAbs = ILCombine(_GetFolderIDList(), (LPCITEMIDLIST)pidlr);
if (pidlAbs)
{
hr = ppf->Initialize(pidlAbs);
ILFree(pidlAbs);
}
else
{
hr = E_OUTOFMEMORY;
}
ppf->Release();
}
if (SUCCEEDED(hr))
{
if (pfto)
{
pfto->Release(); // we are going to replace the cache
pfto = NULL;
}
if (SUCCEEDED(punk->QueryInterface(IID_PPV_ARG(IPersistFreeThreadedObject, &pfto))))
{
SHPinDllOfCLSID(&clsid);
}
}
}
if (FAILED(hr))
{
// we're going to return failure -- don't leak the object we created
punk->Release();
*ppv = NULL;
}
}
}
}
}
// recache the pfto
if (pfto)
{
pfto = ExchangeFTO(&_pftoReg, pfto);
if (pfto)
pfto->Release(); // protect against race condition or re-entrancy
}
}
return hr;
}
//
// lets the reg item itself pick off the GetDisplayNameOf() impl for itself. this lets
// MyDocs on the desktop return c:\win\profile\name\My Documents as it's parsing name
//
// returns:
// S_FALSE do normal parsing, reg item did not handel
//
//
HRESULT CRegFolder::_GetDisplayNameFromSelf(LPCIDLREGITEM pidlr, DWORD dwFlags, LPTSTR pszName, UINT cchName)
{
HRESULT hr = S_FALSE; // normal case
const CLSID clsid = _GetPIDLRCLSID(pidlr); // alignment
BOOL bGetFromSelf = FALSE;
const BOOL bForParsingOnly = ((dwFlags & (SHGDN_FORADDRESSBAR | SHGDN_INFOLDER | SHGDN_FORPARSING)) == SHGDN_FORPARSING);
if (bForParsingOnly)
{
if (SHQueryShellFolderValue(&clsid, TEXT("WantsFORPARSING")))
{
bGetFromSelf = TRUE;
}
}
else
{
const BOOL bForParsing = (0 != (dwFlags & SHGDN_FORPARSING));
const BOOL bForAddressBar = (0 != (dwFlags & SHGDN_FORADDRESSBAR));
if (!bForParsing || bForAddressBar)
{
if (SHQueryShellFolderValue(&clsid, TEXT("WantsFORDISPLAY")))
{
bGetFromSelf = TRUE;
}
}
}
if (bGetFromSelf)
{
IShellFolder *psf;
if (SUCCEEDED(_BindToItem(pidlr, NULL, IID_PPV_ARG(IShellFolder, &psf), TRUE)))
{
//
// Pass NULL pidl (c_idlDesktop) to get display name of the folder itself.
// Note that we can't use DisplayNameOf() because that function
// eats the S_FALSE that can be returned from the
// IShellFolder::GetDisplayNameOf implementation to indicate
// "do the default thing".
//
STRRET sr;
hr = psf->GetDisplayNameOf(&c_idlDesktop, dwFlags, &sr);
if (S_OK == hr)
{
hr = StrRetToBuf(&sr, &c_idlDesktop, pszName, cchName);
}
psf->Release();
}
}
return hr;
}
//
// Managing the name cache is tricky because it is hit frequently on
// multiple threads, and collisions are frequent. E.g., one thread
// does a SetNameOf+SHChangeNotify, and multiple other threads try
// to pull the name out simultaneously. If you're not careful, these
// threads step on each other and some poor schmuck gets invalid data.
//
// _lNameCacheInterlock = -1 if nobody is using the name cache, else >= 0
//
// Therefore, if InterlockedIncrement(&_lNameCacheInterlock) == 0, then
// you are the sole owner of the cache. Otherwise, the cache is busy
// and you should get out.
//
// Furthermore, we don't use the name cache if it is more than 500ms stale.
//
BOOL CRegFolder::_GetNameFromCache(REFCLSID rclsid, DWORD dwFlags, LPTSTR pszName, UINT cchName)
{
BOOL fSuccess = FALSE;
// Quick check to avoid entering the interlock unnecessarily
if (rclsid.Data1 == _clsidNameCache.Data1 &&
GetTickCount() - _dwNameCacheTime < 500)
{
if (InterlockedIncrement(&_lNameCacheInterlock) == 0)
{
if (IsEqualGUID(rclsid, _clsidNameCache) &&
(_dwFlagsNameCache == dwFlags))
{
StringCchCopy(pszName, cchName, _szNameCache); // ok to truncate
fSuccess = TRUE;
}
}
InterlockedDecrement(&_lNameCacheInterlock);
}
return fSuccess;
}
void CRegFolder::_ClearNameFromCache()
{
_clsidNameCache = CLSID_NULL;
}
void CRegFolder::_SaveNameInCache(REFCLSID rclsid, DWORD dwFlags, LPTSTR pszName)
{
if (lstrlen(pszName) < ARRAYSIZE(_szNameCache))
{
if (InterlockedIncrement(&_lNameCacheInterlock) == 0)
{
StringCchCopy(_szNameCache, ARRAYSIZE(_szNameCache), pszName); // ok to truncate
_dwFlagsNameCache = dwFlags;
_clsidNameCache = rclsid;
_dwNameCacheTime = GetTickCount();
}
InterlockedDecrement(&_lNameCacheInterlock);
}
}
//
// Given a pidl in the regitms folder, get the friendly name for this (trying the user
// store ones, then the global one).
//
#define GUIDSIZE 50
HRESULT CRegFolder::_GetDisplayName(LPCIDLREGITEM pidlr, DWORD dwFlags, LPTSTR pszName, UINT cchName)
{
*pszName = 0;
PDELEGATEITEMID pidld = _IsDelegate(pidlr);
if (pidld)
{
IShellFolder *psf;
HRESULT hr = _GetDelegateFolder(pidld, IID_PPV_ARG(IShellFolder, &psf));
if (SUCCEEDED(hr))
{
hr = DisplayNameOf(psf, (LPCITEMIDLIST)pidlr, dwFlags, pszName, cchName);
psf->Release();
}
return hr;
}
else
{
HKEY hkCLSID;
CLSID clsid = _GetPIDLRCLSID(pidlr);
if (_GetNameFromCache(clsid, dwFlags, pszName, cchName))
{
// Satisfied from cache; all done!
}
else
{
HRESULT hr = _GetDisplayNameFromSelf(pidlr, dwFlags, pszName, cchName);
if (hr != S_FALSE)
return hr;
if (dwFlags & SHGDN_FORPARSING)
{
if (!(dwFlags & SHGDN_FORADDRESSBAR))
{
// Get the parent folder name
TCHAR szParentName[MAX_PATH];
szParentName[0] = 0;
if (!(dwFlags & SHGDN_INFOLDER) && !ILIsEmpty(_GetFolderIDList()))
{
SHGetNameAndFlags(_GetFolderIDList(), SHGDN_FORPARSING, szParentName, SIZECHARS(szParentName), NULL);
hr = StringCchCat(szParentName, ARRAYSIZE(szParentName), TEXT("\\"));
if (FAILED(hr))
{
return hr;
}
}
// Win95 didn't support SHGDN_FORPARSING on regitems; it always
// returned the display name. Norton Unerase relies on this,
// because it assumes that if the second character of the FORPARSING
// name is a colon, then it's a drive. Therefore, we can't return
// ::{guid} or Norton will fault. (I guess they didn't believe in
// SFGAO_FILESYSTEM.) So if we are Norton Unerase, then ignore
// the FORPARSING flag; always get the name for display.
// And good luck to any user who sets his computer name to something
// with a colon as the second character...
if (SHGetAppCompatFlags(ACF_OLDREGITEMGDN) & ACF_OLDREGITEMGDN)
{
// In Application compatibility mode turn SHGDN_FORPARSING
// off and fall thru to the remainder of the function which
// avoids the ::{GUID} when required.
dwFlags &= ~SHGDN_FORPARSING;
}
else
{
// Get this reg folder name
TCHAR szFolderName[GUIDSIZE + 2];
szFolderName[0] = szFolderName[1] = _chRegItem;
SHStringFromGUID(clsid, szFolderName + 2, cchName - 2);
// Copy the full path into szParentName.
hr = StringCchCat(szParentName, ARRAYSIZE(szParentName), szFolderName);
if (FAILED(hr))
{
return hr;
}
// Copy the full path into the output buffer.
return StringCchCopy(pszName, cchName, szParentName);
}
}
}
// Check per-user settings first...
if ((*pszName == 0) && SUCCEEDED(SHRegGetCLSIDKey(clsid, NULL, TRUE, FALSE, &hkCLSID)))
{
DWORD cbName = cchName * sizeof(TCHAR);
if (ERROR_SUCCESS != SHRegGetValue(hkCLSID, NULL, NULL, SRRF_RT_REG_SZ, NULL, pszName, &cbName))
*pszName = 0;
RegCloseKey(hkCLSID);
}
// If we have to, use per-machine settings...
if (*pszName == 0)
{
_GetClassKeys(pidlr, &hkCLSID, NULL);
if (hkCLSID)
{
SHLoadLegacyRegUIString(hkCLSID, NULL, pszName, cchName);
RegCloseKey(hkCLSID);
}
}
// try the required item names, they might not be in the registry
if (*pszName == 0)
{
int iItem = _ReqItemIndex(pidlr);
if (iItem >= 0)
LoadString(HINST_THISDLL, _aReqItems[iItem].uNameID, pszName, cchName);
}
if (*pszName)
{
if (_pszMachine && !(dwFlags & SHGDN_INFOLDER))
{
// szName now holds the item name, and _pszMachine holds the machine.
LPTSTR pszRet = ShellConstructMessageString(HINST_THISDLL, MAKEINTRESOURCE(IDS_DSPTEMPLATE_WITH_ON),
SkipServerSlashes(_pszMachine), pszName);
if (pszRet)
{
StringCchCopy(pszName, cchName, pszRet); // ok to truncate
LocalFree(pszRet);
}
}
_SaveNameInCache(clsid, dwFlags, pszName);
}
}
}
return *pszName ? S_OK : E_FAIL;
}
//
// get the HKEYs that map to the regitm.
//
// NOTE: this function returns a void so that the caller explicitly must check the keys
// to see if they are non-null before using them.
//
void CRegFolder::_GetClassKeys(LPCIDLREGITEM pidlr, HKEY* phkCLSID, HKEY* phkBase)
{
HRESULT hr;
IQueryAssociations *pqa;
if (phkCLSID)
*phkCLSID = NULL;
if (phkBase)
*phkBase = NULL;
hr = _AssocCreate(pidlr, IID_PPV_ARG(IQueryAssociations, &pqa));
if (SUCCEEDED(hr))
{
if (phkCLSID)
{
hr = pqa->GetKey(0, ASSOCKEY_CLASS, NULL, phkCLSID);
ASSERT((SUCCEEDED(hr) && *phkCLSID) || (FAILED(hr) && (*phkCLSID == NULL)));
}
if (phkBase)
{
hr = pqa->GetKey(0, ASSOCKEY_BASECLASS, NULL, phkBase);
ASSERT((SUCCEEDED(hr) && *phkBase) || (FAILED(hr) && (*phkBase == NULL)));
}
pqa->Release();
}
}
// {9EAC43C0-53EC-11CE-8230-CA8A32CF5494}
static const GUID GUID_WINAMP = { 0x9eac43c0, 0x53ec, 0x11ce, { 0x82, 0x30, 0xca, 0x8a, 0x32, 0xcf, 0x54, 0x94 } };
#define SZ_BROKEN_WINAMP_VERB TEXT("OpenFileOrPlayList")
// IQA - Move this to Legacy Mapper.
void _MaybeDoWinAmpHack(UNALIGNED REFGUID rguid)
{
if (IsEqualGUID(rguid, GUID_WINAMP))
{
// WinAmp writes in "OpenFileOrPlayList" as default value under shell, but they
// don't write a corresponding "OpenFileorPlayList" verb key. So we need to whack
// the registry into shape for them. Otherwise, they won't get the default verb
// they want (due to an NT5 change in CDefExt_QueryContextMenu's behavior).
TCHAR szCLSID[GUIDSTR_MAX];
SHStringFromGUID(rguid, szCLSID, ARRAYSIZE(szCLSID));
TCHAR szRegKey[GUIDSTR_MAX + 40];
HRESULT hr;
hr = StringCchPrintf(szRegKey, ARRAYSIZE(szRegKey), TEXT("CLSID\\%s\\shell"), szCLSID);
if (SUCCEEDED(hr))
{
TCHAR szValue[ARRAYSIZE(SZ_BROKEN_WINAMP_VERB)+2];
DWORD dwType;
DWORD dwSize = sizeof(szValue);
if (SHGetValue(HKEY_CLASSES_ROOT, szRegKey, NULL, &dwType, szValue, &dwSize) == 0)
{
if (dwType == REG_SZ && lstrcmp(szValue, SZ_BROKEN_WINAMP_VERB) == 0)
{
// Make "open" the default verb
SHSetValue(HKEY_CLASSES_ROOT, szRegKey, NULL, REG_SZ, TEXT("open"), sizeof(TEXT("open")));
}
}
}
}
}
HRESULT CRegFolder::_AssocCreate(LPCIDLREGITEM pidlr, REFIID riid, void **ppv)
{
*ppv = NULL;
IQueryAssociations *pqa;
HRESULT hr = AssocCreate(CLSID_QueryAssociations, IID_PPV_ARG(IQueryAssociations, &pqa));
if (SUCCEEDED(hr))
{
WCHAR szCLSID[GUIDSTR_MAX];
const CLSID clsid = _GetPIDLRCLSID(pidlr); // alignment
ASSOCF flags = ASSOCF_INIT_NOREMAPCLSID;
DWORD dwAttributes;
if ((SUCCEEDED(_AttributesOf(pidlr, SFGAO_FOLDER, &dwAttributes)) &&
(dwAttributes & SFGAO_FOLDER)) &&
!SHQueryShellFolderValue(&clsid, TEXT("HideFolderVerbs")))
flags |= ASSOCF_INIT_DEFAULTTOFOLDER;
SHStringFromGUIDW(clsid, szCLSID, ARRAYSIZE(szCLSID));
_MaybeDoWinAmpHack(clsid);
hr = pqa->Init(flags, szCLSID, NULL, NULL);
if (SUCCEEDED(hr))
hr = pqa->QueryInterface(riid, ppv);
pqa->Release();
}
return hr;
}
//
// get the namespace key for this objec.
//
void CRegFolder::_GetNameSpaceKey(LPCIDLREGITEM pidlr, LPTSTR pszKeyName, UINT cchKeyName)
{
TCHAR szClass[GUIDSTR_MAX];
SHStringFromGUID(_GetPIDLRCLSID(pidlr), szClass, ARRAYSIZE(szClass));
StringCchPrintf(pszKeyName, cchKeyName, TEXT("%s\\%s"), _pszRegKey, szClass); // ok to truncate
}
BOOL CRegFolder::_CanDelete(LPCIDLREGITEM pidlr)
{
DWORD dwAttributes;
return pidlr &&
SUCCEEDED(_AttributesOf(pidlr, SFGAO_CANDELETE, &dwAttributes)) &&
(dwAttributes & SFGAO_CANDELETE);
}
//
// the user is trying to delete an object from a regitem folder, therefore
// lets look in the IDataObject to see if that includes any regitems, if
// so then handle their deletion, before passing to the outer guy to
// handle the other objects.
//
#define MAX_REGITEM_WARNTEXT 1024
void CRegFolder::_Delete(HWND hwnd, UINT uFlags, IDataObject *pdtobj)
{
STGMEDIUM medium;
LPIDA pida = DataObj_GetHIDA(pdtobj, &medium);
if (pida)
{
TCHAR szItemWarning[MAX_REGITEM_WARNTEXT];
UINT nregfirst = (UINT)-1;
UINT creg = 0;
UINT cwarn = 0;
UINT countfs = 0;
LPCITEMIDLIST *ppidlFS = NULL;
// calc number of regitems and index of first
for (UINT i = 0; i < pida->cidl; i++)
{
LPCITEMIDLIST pidl = IDA_GetIDListPtr(pida, i);
LPCIDLREGITEM pidlr = _IsReg(pidl);
if (_CanDelete(pidlr))
{
TCHAR szTemp[MAX_REGITEM_WARNTEXT];
creg++;
if (nregfirst == (UINT)-1)
nregfirst = i;
// use a temporary here because _GetDeleteMessage clobbers the buffer
// when it doesn't get a delete message --ccooney
if ((cwarn < 2) && _GetDeleteMessage(pidlr, szTemp, ARRAYSIZE(szTemp)))
{
StringCchCopy(szItemWarning, ARRAYSIZE(szItemWarning), szTemp); // ok to truncate
cwarn++;
}
}
else if (!pidlr) //only do this for non reg items
{
// alloc an alternate array for FS pidls
// for simplicitu over alloc in the case where there are reg items
if (ppidlFS == NULL)
ppidlFS = (LPCITEMIDLIST *)LocalAlloc(LPTR, pida->cidl * sizeof(LPCITEMIDLIST));
if (ppidlFS)
{
ppidlFS[countfs++] = pidl;
}
}
}
//
// compose the confirmation message / ask the user / fry the items...
//
if (creg)
{
SHELLSTATE ss = {0};
SHGetSetSettings(&ss, SSF_NOCONFIRMRECYCLE, FALSE);
if ((uFlags & CMIC_MASK_FLAG_NO_UI) || ss.fNoConfirmRecycle)
{
for (i = 0; i < pida->cidl; i++)
{
LPCIDLREGITEM pidlr = _IsReg(IDA_GetIDListPtr(pida, i));
if (_CanDelete(pidlr))
_DeleteRegItem(pidlr);
}
}
else
{
TCHAR szItemName[MAX_PATH];
TCHAR szWarnText[1024 + MAX_REGITEM_WARNTEXT];
TCHAR szWarnCaption[128];
TCHAR szTemp[256];
MSGBOXPARAMS mbp = {sizeof(mbp), hwnd,
HINST_THISDLL, szWarnText, szWarnCaption,
MB_YESNO | MB_USERICON, MAKEINTRESOURCE(IDI_NUKEFILE),
0, NULL, 0};
//
// so we can tell if we got these later
//
*szItemName = 0;
*szWarnText = 0;
//
// if there is only one, retrieve its name
//
if (creg == 1)
{
LPCIDLREGITEM pidlr = _IsReg(IDA_GetIDListPtr(pida, nregfirst));
_GetDisplayName(pidlr, SHGDN_NORMAL, szItemName, ARRAYSIZE(szItemName));
}
//
// ask the question "are you sure..."
//
if ((pida->cidl == 1) && *szItemName)
{
TCHAR szTemp2[256];
LoadString(HINST_THISDLL, _IsDesktop() ? IDS_CONFIRMDELETEDESKTOPREGITEM : IDS_CONFIRMDELETEREGITEM, szTemp2, ARRAYSIZE(szTemp2));
StringCchPrintf(szTemp, ARRAYSIZE(szTemp), szTemp2, szItemName); // ok to truncate
}
else
{
LoadString(HINST_THISDLL, _IsDesktop() ? IDS_CONFIRMDELETEDESKTOPREGITEMS : IDS_CONFIRMDELETEREGITEMS, szTemp, ARRAYSIZE(szTemp));
}
StringCchCat(szWarnText, ARRAYSIZE(szWarnText), szTemp); // ok to truncate
//
// if there is exactly one special warning message and one item total, add it in
//
if (creg == 1 && cwarn == 1 && *szItemWarning)
{
StringCchCat(szWarnText, ARRAYSIZE(szWarnText), TEXT("\r\n\n")); // ok to truncate
StringCchCat(szWarnText, ARRAYSIZE(szWarnText), szItemWarning); // ok to truncate
}
else
{
if (creg == 1)
{
TCHAR szTemp2[256];
TCHAR szControlPanel[256];
LPCIDLREGITEM pidlr = _IsReg(IDA_GetIDListPtr(pida, nregfirst));
CLSID clsid = _GetPIDLRCLSID(pidlr); // alignment
int idString = (1 == pida->cidl) ?
IDS_CANTRECYCLEREGITEMS_NAME :
IDS_CANTRECYCLEREGITEMS_INCL_NAME;
LoadString(HINST_THISDLL, idString, szTemp, ARRAYSIZE(szTemp));
if ((IsEqualCLSID(CLSID_NetworkPlaces, clsid)) ||
(IsEqualCLSID(CLSID_Internet, clsid)) ||
(IsEqualCLSID(CLSID_MyComputer, clsid)) ||
(IsEqualCLSID(CLSID_MyDocuments, clsid)))
{
LoadString(HINST_THISDLL, IDS_CANTRECYLE_FOLDER, szControlPanel, ARRAYSIZE(szControlPanel));
}
else
{
LoadString(HINST_THISDLL, IDS_CANTRECYLE_GENERAL, szControlPanel, ARRAYSIZE(szControlPanel));
}
StringCchCat(szWarnText, ARRAYSIZE(szWarnText), TEXT("\r\n\n")); // ok to truncate
StringCchPrintf(szTemp2, ARRAYSIZE(szTemp2), szTemp, szControlPanel); // ok to truncate
StringCchCat(szWarnText, ARRAYSIZE(szWarnText), szTemp2); // ok to truncate
}
//
// otherwise, say "these items..." or "some of these items..."
//
else
{
TCHAR szTemp2[256];
TCHAR szControlPanel[256];
int idString = (creg == pida->cidl) ? IDS_CANTRECYCLEREGITEMS_ALL : IDS_CANTRECYCLEREGITEMS_SOME;
LoadString(HINST_THISDLL, idString, szTemp, ARRAYSIZE(szTemp));
LoadString(HINST_THISDLL, IDS_CANTRECYLE_GENERAL, szControlPanel, ARRAYSIZE(szControlPanel));
StringCchCat(szWarnText, ARRAYSIZE(szWarnText), TEXT("\r\n\n")); // ok to truncate
StringCchPrintf(szTemp2, ARRAYSIZE(szTemp2), szTemp, szControlPanel); // ok to truncate
StringCchCat(szWarnText, ARRAYSIZE(szWarnText), szTemp2); // ok to truncate
//
// we just loaded a very vague message
// don't confuse the user any more by adding random text
// if these is a special warning, force it to show separately
//
if (cwarn == 1)
cwarn++;
}
}
//
// finally, the message box caption (also needed in loop below)
//
LoadString(HINST_THISDLL, IDS_CONFIRMDELETE_CAPTION, szWarnCaption, ARRAYSIZE(szWarnCaption));
// make sure the user is cool with it
if (MessageBoxIndirect(&mbp) == IDYES)
{
// go ahead and delete the reg items
for (i = 0; i < pida->cidl; i++)
{
LPCIDLREGITEM pidlr = _IsReg(IDA_GetIDListPtr(pida, i));
if (_CanDelete(pidlr))
{
if ((cwarn > 1) && _GetDeleteMessage(pidlr, szItemWarning, ARRAYSIZE(szItemWarning)))
{
if (FAILED(_GetDisplayName(pidlr, SHGDN_NORMAL, szItemName, ARRAYSIZE(szItemName))))
{
StringCchCopy(szItemName, ARRAYSIZE(szItemName), szWarnCaption); // ok to truncate
}
MessageBox(hwnd, szItemWarning, szItemName, MB_OK | MB_ICONINFORMATION);
}
_DeleteRegItem(pidlr);
}
}
}
}
}
// now delete the fs objects
if (ppidlFS)
{
SHInvokeCommandOnPidlArray(hwnd, NULL, (IShellFolder *)this, ppidlFS, countfs, uFlags, "delete");
LocalFree((HANDLE)ppidlFS);
}
HIDA_ReleaseStgMedium(pida, &medium);
}
}
//
// Delete a regitem given its pidl.
//
HRESULT CRegFolder::_DeleteRegItem(LPCIDLREGITEM pidlr)
{
if (_IsDelegate(pidlr))
return E_INVALIDARG;
HRESULT hr = E_ACCESSDENIED;
if (_CanDelete(pidlr))
{
const CLSID clsid = _GetPIDLRCLSID(pidlr); // alignment
if (SHQueryShellFolderValue(&clsid, TEXT("HideOnDesktopPerUser")))
{
// hide this icon only on desktop for StartPanel on (0) and off (1)
hr = ShowHideIconOnlyOnDesktop(&clsid, 0, 1, TRUE);
}
else if (SHQueryShellFolderValue(&clsid, TEXT("HideAsDeletePerUser")))
{
// clear the non enuerated bit to hide this item
hr = _SetAttributes(pidlr, TRUE, SFGAO_NONENUMERATED, SFGAO_NONENUMERATED);
}
else if (SHQueryShellFolderValue(&clsid, TEXT("HideAsDelete")))
{
// clear the non enuerated bit to hide this item
hr = _SetAttributes(pidlr, FALSE, SFGAO_NONENUMERATED, SFGAO_NONENUMERATED);
}
else
{
// remove from the key to delete it
TCHAR szKeyName[MAX_PATH];
_GetNameSpaceKey(pidlr, szKeyName, ARRAYSIZE(szKeyName));
if ((RegDeleteKey(HKEY_CURRENT_USER, szKeyName) == ERROR_SUCCESS) ||
(RegDeleteKey(HKEY_LOCAL_MACHINE, szKeyName) == ERROR_SUCCESS))
{
hr = S_OK;
}
}
if (SUCCEEDED(hr))
{
// tell the world
LPITEMIDLIST pidlAbs = ILCombine(_GetFolderIDList(), (LPCITEMIDLIST)pidlr);
if (pidlAbs)
{
SHChangeNotify(SHCNE_DELETE, SHCNF_IDLIST, pidlAbs, NULL);
ILFree(pidlAbs);
}
}
}
return hr;
}
//
// Get the prompt to be displayed if the user tries to delete the regitem,
// this is stored both globally (HKLM) and as s user configured preference.
//
BOOL CRegFolder::_GetDeleteMessage(LPCIDLREGITEM pidlr, LPTSTR pszMsg, int cchMax)
{
HKEY hk;
TCHAR szKeyName[MAX_PATH];
ASSERT(!_IsDelegate(pidlr));
*pszMsg = 0;
_GetNameSpaceKey(pidlr, szKeyName, ARRAYSIZE(szKeyName));
if ((RegOpenKeyEx(HKEY_LOCAL_MACHINE, szKeyName, NULL, KEY_QUERY_VALUE, &hk) == ERROR_SUCCESS) ||
(RegOpenKeyEx(HKEY_CURRENT_USER, szKeyName, NULL, KEY_QUERY_VALUE, &hk) == ERROR_SUCCESS))
{
SHLoadRegUIString(hk, REGSTR_VAL_REGITEMDELETEMESSAGE, pszMsg, cchMax);
RegCloseKey(hk);
}
return *pszMsg != 0;
}
HRESULT CRegFolder::_GetRegItemColumnFromRegistry(LPCIDLREGITEM pidlr, LPCTSTR pszColumnName, LPTSTR pszColumnData, int cchColumnData)
{
HKEY hkCLSID;
HRESULT hr = E_FAIL;
_GetClassKeys(pidlr, &hkCLSID, NULL);
*pszColumnData = 0; // Default string
if (hkCLSID)
{
// Use SHLoadRegUIString to allow the string to be localized
if (SUCCEEDED(SHLoadRegUIString(hkCLSID, pszColumnName, pszColumnData, cchColumnData)))
{
hr = S_OK;
}
// FIXED kenwic 052699 #342955
RegCloseKey(hkCLSID);
}
return hr;
}
//
// A more generic version of _GetRegItemColumnFromRegistry which takes a pidlr and a string
// and finds the corresponding variant value from the registry.
//
// pidlr: pidl of the regitem, we open the registry key corresponding to its CLSID
// pszColumnName: name of the value to took for under the opened key
// pv: variant to return the value
//
HRESULT CRegFolder::_GetRegItemVariantFromRegistry(LPCIDLREGITEM pidlr, LPCTSTR pszColumnName, VARIANT *pv)
{
HKEY hkCLSID;
HRESULT hr = E_FAIL;
_GetClassKeys(pidlr, &hkCLSID, NULL);
if (hkCLSID)
{
hr = GetVariantFromRegistryValue(hkCLSID, pszColumnName, pv);
RegCloseKey(hkCLSID);
}
return hr;
}
//
// App compat: McAfee Nuts & Bolts Quick Copy has the wrong function
// signature for CreateViewObject. They implemented it as
//
// STDAPI CreateViewObject(HWND hwnd) { return S_OK; }
//
// so we must manually reset the stack after the call.
//
#ifdef _X86_
STDAPI SHAppCompatCreateViewObject(IShellFolder *psf, HWND hwnd, REFIID riid, void * *ppv)
{
HRESULT hr;
_asm mov edi, esp
hr = psf->CreateViewObject(hwnd, riid, ppv);
_asm mov esp, edi
// AppCompat - Undelete 2.0 returns S_OK for interfaces that it doesnt support
// but they do correctly NULL the ppv out param so we check for that as well
if (SUCCEEDED(hr) && !*ppv)
hr = E_NOINTERFACE;
return hr;
}
#else
#define SHAppCompatCreateViewObject(psf, hwnd, riid, ppv) \
psf->CreateViewObject(hwnd, riid, ppv)
#endif
HRESULT CRegFolder::_CreateViewObjectFor(LPCIDLREGITEM pidlr, HWND hwnd, REFIID riid, void **ppv, BOOL bOneLevel)
{
IShellFolder *psf;
HRESULT hr = _BindToItem(pidlr, NULL, IID_PPV_ARG(IShellFolder, &psf), bOneLevel);
if (SUCCEEDED(hr))
{
hr = SHAppCompatCreateViewObject(psf, hwnd, riid, ppv);
psf->Release();
}
else
*ppv = NULL;
return hr;
}
// Geta an infotip object for the namespace
HRESULT CRegFolder::_GetInfoTip(LPCIDLREGITEM pidlr, void **ppv)
{
HKEY hkCLSID;
HRESULT hr = E_FAIL;
_GetClassKeys(pidlr, &hkCLSID, NULL);
if (hkCLSID)
{
DWORD dwQuery, lLen = sizeof(dwQuery);
// let the regitem code compute the info tip if it wants to...
if (SHQueryValueEx(hkCLSID, TEXT("QueryForInfoTip"), NULL, NULL, (BYTE *)&dwQuery, &lLen) == ERROR_SUCCESS)
{
hr = _CreateViewObjectFor(pidlr, NULL, IID_IQueryInfo, ppv, TRUE);
}
else
{
hr = E_FAIL;
}
// fall back to reading it from the registry
if (FAILED(hr))
{
TCHAR szText[INFOTIPSIZE];
// Use SHLoadRegUIString to allow the info tip to be localized
if (SUCCEEDED(SHLoadRegUIString(hkCLSID, TEXT("InfoTip"), szText, ARRAYSIZE(szText))) &&
szText[0])
{
hr = CreateInfoTipFromText(szText, IID_IQueryInfo, ppv); //The InfoTip COM object
}
}
RegCloseKey(hkCLSID);
}
return hr;
}
// there are 2 forms for parsing syntax we support
//
// to parse reg items in this folder
// ::{clsid reg item} [\ optional extra stuff to parse]
//
// to parse items that might live in a delegate folder
// ::{clsid delegate folder},<delegate folder specific parse string> [\ optional extra stuff to parse]
//
// in both cases the optional remander stuff gets passed through to complete
// the parse in that name space
HRESULT CRegFolder::_ParseGUIDName(HWND hwnd, LPBC pbc, LPOLESTR pwzDisplayName,
LPITEMIDLIST *ppidlOut, ULONG *pdwAttributes)
{
LPOLESTR pwzNext;
LPOLESTR pwzDelegateInfo = NULL;
// Note that we add 2 to skip the RegItem identifier characters
pwzDisplayName += 2;
// Skip to a '\\'
for (pwzNext = pwzDisplayName; *pwzNext && *pwzNext != TEXT('\\'); pwzNext++)
{
// if we hit a ',' then eg, ::{GUID},stuff then we assume the stuff is for a delegate
if ((*pwzNext == TEXT(',')) && !pwzDelegateInfo)
{
pwzDelegateInfo = pwzNext + 1; // skip comma
}
}
CLSID clsid;
HRESULT hr = SHCLSIDFromString(pwzDisplayName, &clsid);
if (SUCCEEDED(hr))
{
if (pwzDelegateInfo)
{
IShellFolder *psf;
if (SUCCEEDED(_CreateDelegateFolder(&clsid, IID_PPV_ARG(IShellFolder, &psf))))
{
ULONG chEaten;
hr = psf->ParseDisplayName(hwnd, pbc, pwzDelegateInfo, &chEaten, ppidlOut, pdwAttributes);
psf->Release();
}
}
else
{
IDLREGITEM* pidlRegItem = _CreateAndFillIDLREGITEM(&clsid);
if (pidlRegItem)
{
if (_IsInNameSpace(pidlRegItem) || (BindCtx_GetMode(pbc, 0) & STGM_CREATE))
{
hr = _ParseNextLevel(hwnd, pbc, pidlRegItem, pwzNext, ppidlOut, pdwAttributes);
}
else
hr = E_INVALIDARG;
ILFree((LPITEMIDLIST)pidlRegItem);
}
else
{
hr = E_OUTOFMEMORY;
}
}
}
return hr;
}
//
// ask a (known) regitem to parse a displayname
//
HRESULT CRegFolder::_ParseThroughItem(LPCIDLREGITEM pidlr, HWND hwnd, LPBC pbc,
LPOLESTR pszName, ULONG *pchEaten,
LPITEMIDLIST *ppidlOut, ULONG *pdwAttributes)
{
IShellFolder *psfItem;
HRESULT hr = _BindToItem(pidlr, pbc, IID_PPV_ARG(IShellFolder, &psfItem), FALSE);
if (SUCCEEDED(hr))
{
LPITEMIDLIST pidlRight;
hr = psfItem->ParseDisplayName(hwnd, pbc, pszName, pchEaten,
&pidlRight, pdwAttributes);
if (SUCCEEDED(hr))
{
hr = SHILCombine((LPCITEMIDLIST)pidlr, pidlRight, ppidlOut);
ILFree(pidlRight);
}
psfItem->Release();
}
return hr;
}
//
// Parse through the GUID to the namespace below
//
HRESULT CRegFolder::_ParseNextLevel(HWND hwnd, LPBC pbc, LPCIDLREGITEM pidlr,
LPOLESTR pwzRest, LPITEMIDLIST *ppidlOut, ULONG *pdwAttributes)
{
if (!*pwzRest)
{
// base case for recursive calls
// pidlNext should be a simple pidl.
ASSERT(!ILIsEmpty((LPCITEMIDLIST)pidlr) && ILIsEmpty(_ILNext((LPCITEMIDLIST)pidlr)));
if (pdwAttributes && *pdwAttributes)
_AttributesOf(pidlr, *pdwAttributes, pdwAttributes);
return SHILClone((LPCITEMIDLIST)pidlr, ppidlOut);
}
ASSERT(*pwzRest == TEXT('\\'));
++pwzRest;
IShellFolder *psfNext;
HRESULT hr = _BindToItem(pidlr, pbc, IID_PPV_ARG(IShellFolder, &psfNext), FALSE);
if (SUCCEEDED(hr))
{
ULONG chEaten;
LPITEMIDLIST pidlRest;
hr = psfNext->ParseDisplayName(hwnd, pbc, pwzRest, &chEaten, &pidlRest, pdwAttributes);
if (SUCCEEDED(hr))
{
hr = SHILCombine((LPCITEMIDLIST)pidlr, pidlRest, ppidlOut);
SHFree(pidlRest);
}
psfNext->Release();
}
return hr;
}
BOOL _FailForceReturn(HRESULT hr)
{
switch (hr)
{
case HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND):
case HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND):
case HRESULT_FROM_WIN32(ERROR_BAD_NET_NAME):
case HRESULT_FROM_WIN32(ERROR_BAD_NETPATH):
case HRESULT_FROM_WIN32(ERROR_CANCELLED):
return TRUE;
}
return FALSE;
}
HRESULT CRegFolder::ParseDisplayName(HWND hwnd, LPBC pbc, LPOLESTR pszName,
ULONG *pchEaten, LPITEMIDLIST *ppidlOut, ULONG *pdwAttributes)
{
HRESULT hr = E_INVALIDARG;
if (ppidlOut)
*ppidlOut = NULL;
if (ppidlOut && pszName)
{
// ::{guid} lets you get the pidl for a reg item
if (*pszName && (pszName[0] == _chRegItem) && (pszName[1] == _chRegItem))
{
hr = _ParseGUIDName(hwnd, pbc, pszName, ppidlOut, pdwAttributes);
}
else
{
// inner folder gets a chance to parse
hr = _psfOuter->ParseDisplayName(hwnd, pbc, pszName, pchEaten, ppidlOut, pdwAttributes);
if (FAILED(hr) &&
!_FailForceReturn(hr) &&
!SHSkipJunctionBinding(pbc, NULL))
{
// loop over all of the items
HDCA hdca = _ItemArray();
if (hdca)
{
HRESULT hrTemp = E_FAIL;
for (int i = 0; FAILED(hrTemp) && (i < DCA_GetItemCount(hdca)); i++)
{
const CLSID clsid = *DCA_GetItem(hdca, i);
if (!SHSkipJunction(pbc, &clsid)
&& SHQueryShellFolderValue(&clsid, L"WantsParseDisplayName"))
{
IDLREGITEM* pidlRegItem = _CreateAndFillIDLREGITEM(DCA_GetItem(hdca, i));
if (pidlRegItem)
{
hrTemp = _ParseThroughItem(pidlRegItem, hwnd, pbc, pszName, pchEaten, ppidlOut, pdwAttributes);
}
ILFree((LPITEMIDLIST)pidlRegItem);
}
}
DCA_Destroy(hdca);
if (SUCCEEDED(hrTemp) || _FailForceReturn(hrTemp))
hr = hrTemp;
else
hr = E_INVALIDARG; // no one could handle it
}
else
{
hr = E_OUTOFMEMORY;
}
}
}
ASSERT(SUCCEEDED(hr) ? *ppidlOut != NULL : *ppidlOut == NULL);
}
if (FAILED(hr))
TraceMsg(TF_WARNING, "CRegFolder::ParseDisplayName(), hr:%x %hs", hr, pszName);
return hr;
}
HRESULT CRegFolder::EnumObjects(HWND hwnd, DWORD grfFlags, IEnumIDList **ppenum)
{
*ppenum = NULL;
IEnumIDList *penumOuter;
HRESULT hr = _psfOuter->EnumObjects(hwnd, grfFlags, &penumOuter);
if (SUCCEEDED(hr))
{
// SUCCEEDED(hr) may be S_FALSE with penumOuter == NULL
// CRegFolderEnum deals with this just fine
CRegFolderEnum *preidl = new CRegFolderEnum(this, grfFlags, penumOuter,
_ItemArray(), _DelItemArray(),
_pPolicy);
if (preidl)
{
*ppenum = SAFECAST(preidl, IEnumIDList*);
hr = S_OK;
}
else
hr = E_OUTOFMEMORY;
if (penumOuter)
penumOuter->Release(); // _psfOuter returned S_FALSE
}
return hr;
}
// Handle binding to the inner namespace, or the regitem accordingly given its pidl.
HRESULT CRegFolder::_BindToItem(LPCIDLREGITEM pidlr, LPBC pbc, REFIID riid, void **ppv, BOOL bOneLevel)
{
LPITEMIDLIST pidlAlloc;
*ppv = NULL;
LPCITEMIDLIST pidlNext = _ILNext((LPCITEMIDLIST)pidlr);
if (ILIsEmpty(pidlNext))
{
pidlAlloc = NULL;
bOneLevel = TRUE; // we know for sure it is one level
}
else
{
pidlAlloc = ILCloneFirst((LPCITEMIDLIST)pidlr);
if (!pidlAlloc)
return E_OUTOFMEMORY;
pidlr = (LPCIDLREGITEM)pidlAlloc; // a single item IDLIST
}
HRESULT hr;
if (bOneLevel)
{
hr = _CreateAndInit(pidlr, pbc, riid, ppv); // create on riid to avoid loads on interfaces not supported
}
else
{
IShellFolder *psfNext;
hr = _CreateAndInit(pidlr, pbc, IID_PPV_ARG(IShellFolder, &psfNext));
if (SUCCEEDED(hr))
{
hr = psfNext->BindToObject(pidlNext, pbc, riid, ppv);
psfNext->Release();
}
}
if (pidlAlloc)
ILFree(pidlAlloc); // we allocated in this case
return hr;
}
HRESULT CRegFolder::BindToObject(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{
HRESULT hr;
LPCIDLREGITEM pidlr = _IsReg(pidl);
if (pidlr)
hr = _BindToItem(pidlr, pbc, riid, ppv, FALSE);
else
hr = _psfOuter->BindToObject(pidl, pbc, riid, ppv);
return hr;
}
HRESULT CRegFolder::BindToStorage(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{
return BindToObject(pidl, pbc, riid, ppv);
}
// I can't believe there is no "^^"
#define LOGICALXOR(a, b) (((a) && !(b)) || (!(a) && (b)))
BOOL CRegFolder::_IsFolder(LPCITEMIDLIST pidl)
{
BOOL fRet = FALSE;
if (pidl)
{
ULONG uAttrib = SFGAO_FOLDER;
if (SUCCEEDED(GetAttributesOf(1, &pidl, &uAttrib)) && (SFGAO_FOLDER & uAttrib))
fRet = TRUE;
}
return fRet;
}
int CRegFolder::_CompareIDsOriginal(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
LPCIDLREGITEM pidlr1 = _IsReg(pidl1);
LPCIDLREGITEM pidlr2 = _IsReg(pidl2);
int iRes = 0;
if (pidlr1 && pidlr2)
{
iRes = memcmp(&(_GetPIDLRCLSID(pidlr1)), &(_GetPIDLRCLSID(pidlr2)), sizeof(CLSID));
if (0 == iRes)
{
// if they are the same clsid
// and delegates then we need to query
// the delegate for the compare
PDELEGATEITEMID pidld1 = _IsDelegate(pidlr1);
PDELEGATEITEMID pidld2 = _IsDelegate(pidlr2);
if (pidld1 && pidld2)
{
// these are both the same delegate
IShellFolder *psf;
if (SUCCEEDED(_GetDelegateFolder(pidld1, IID_PPV_ARG(IShellFolder, &psf))))
{
HRESULT hr = psf->CompareIDs(lParam, pidl1, pidl2);
psf->Release();
iRes = HRESULT_CODE(hr);
}
}
else
{
ASSERT(!pidld1 && !pidld2);
}
}
else if (!(SHCIDS_CANONICALONLY & lParam))
{
// sort by defined order
BYTE bOrder1 = _GetOrder(pidlr1);
BYTE bOrder2 = _GetOrder(pidlr2);
int iUI = bOrder1 - bOrder2;
if (0 == iUI)
{
// All of the required items come first, in reverse
// order (to make this simpler)
int iItem1 = _ReqItemIndex(pidlr1);
int iItem2 = _ReqItemIndex(pidlr2);
if (iItem1 == -1 && iItem2 == -1)
{
TCHAR szName1[MAX_PATH], szName2[MAX_PATH];
_GetDisplayName(pidlr1, SHGDN_NORMAL, szName1, ARRAYSIZE(szName1));
_GetDisplayName(pidlr2, SHGDN_NORMAL, szName2, ARRAYSIZE(szName2));
iUI = StrCmpLogicalRestricted(szName1, szName2);
}
else
{
iUI = iItem2 - iItem1;
}
}
if (iUI)
iRes = iUI;
}
}
return iRes;
}
// Alphabetical (doesn't care about folder, regitems, ...)
int CRegFolder::_CompareIDsAlphabetical(UINT iColumn, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
int iRes = 0;
// Do we have only one ptr?
if (!LOGICALXOR(pidl1, pidl2))
{
// No, either we have two or none.
if (pidl1 && pidl2)
{
iRes = CompareIDsAlphabetical(SAFECAST(this, IShellFolder2*), iColumn, pidl1, pidl2);
}
// else iRes already = 0
}
else
{
// Yes, the one which is non-NULL is first
iRes = (pidl1 ? -1 : 1);
}
return iRes;
}
// Folders comes first, and are ordered in alphabetical order among themselves,
// then comes all the non-folders again sorted among thmeselves
int CRegFolder::_CompareIDsFolderFirst(UINT iColumn, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
int iRes = 0;
BOOL fIsFolder1 = _IsFolder(pidl1);
BOOL fIsFolder2 = _IsFolder(pidl2);
// Is there one folder and one non-folder?
if (LOGICALXOR(fIsFolder1, fIsFolder2))
{
// Yes, the folder will be first
iRes = fIsFolder1 ? -1 : 1;
}
else
{
// No, either both are folders or both are not. One way or the other, go
// alphabetically
iRes = _CompareIDsAlphabetical(iColumn, pidl1, pidl2);
}
return iRes;
}
int CRegFolder::_GetOrderType(LPCITEMIDLIST pidl)
{
if (_IsReg(pidl))
{
if (_IsDelegate((LPCIDLREGITEM)pidl))
return REGORDERTYPE_DELEGATE;
else if (-1 == _ReqItemIndex((LPCIDLREGITEM)pidl))
return REGORDERTYPE_REGITEM;
else
return REGORDERTYPE_REQITEM;
}
return _iTypeOuter;
}
HRESULT CRegFolder::CompareIDs(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
int iType1 = _GetOrderType(pidl1);
int iType2 = _GetOrderType(pidl2);
int iTypeCompare = iType1 - iType2;
int iRes = 0;
UINT iColumn = (UINT) (SHCIDS_COLUMNMASK & lParam);
// first we compare the first level only
switch (_dwSortAttrib)
{
case RIISA_ORIGINAL:
if (0 == iTypeCompare && iType1 == _iTypeOuter)
{
// neither are regitems
return _psfOuter->CompareIDs(lParam, pidl1, pidl2);
}
else
{
ASSERT(iRes == 0); // this handled by by CompareIDsOriginal() below
}
break;
case RIISA_FOLDERFIRST:
iRes = _CompareIDsFolderFirst(iColumn, pidl1, pidl2);
break;
case RIISA_ALPHABETICAL:
iRes = _CompareIDsAlphabetical(iColumn, pidl1, pidl2);
break;
}
// all our foofy compares and it still looks the same to us
// time to get medieval.
if (0 == iRes)
{
iRes = _CompareIDsOriginal(lParam, pidl1, pidl2);
if (0 == iRes)
iRes = iTypeCompare;
if (0 == iRes)
{
// If the class ID's really are the same,
// we'd better check the next level(s)
return ILCompareRelIDs(SAFECAST(this, IShellFolder *), pidl1, pidl2, lParam);
}
}
return ResultFromShort(iRes);
}
HRESULT CRegFolder::CreateViewObject(HWND hwnd, REFIID riid, void **ppv)
{
return _psfOuter->CreateViewObject(hwnd, riid, ppv);
}
HRESULT CRegFolder::_SetAttributes(LPCIDLREGITEM pidlr, BOOL bPerUser, DWORD dwMask, DWORD dwNewBits)
{
HKEY hk;
HRESULT hr = SHRegGetCLSIDKey(_GetPIDLRCLSID(pidlr), TEXT("ShellFolder"), bPerUser, TRUE, &hk);
if (SUCCEEDED(hr))
{
DWORD err, dwValue = 0, cbSize = sizeof(dwValue);
SHQueryValueEx(hk, TEXT("Attributes"), NULL, NULL, (BYTE *)&dwValue, &cbSize);
dwValue = (dwValue & ~dwMask) | (dwNewBits & dwMask);
err = RegSetValueEx(hk, TEXT("Attributes"), 0, REG_DWORD, (BYTE *)&dwValue, sizeof(dwValue));
hr = HRESULT_FROM_WIN32(err);
RegCloseKey(hk);
}
EnterCriticalSection(&_cs);
_clsidAttributesCache = CLSID_NULL;
LeaveCriticalSection(&_cs);
return hr;
}
LONG CRegFolder::_RegOpenCLSIDUSKey(CLSID clsid, PHUSKEY phk)
{
WCHAR wszCLSID[39];
LONG iRetVal = ERROR_INVALID_PARAMETER;
if (StringFromGUID2(clsid, wszCLSID, ARRAYSIZE(wszCLSID)))
{
TCHAR szKey[MAXIMUM_SUB_KEY_LENGTH];
HRESULT hr;
hr = StringCchPrintf(szKey, ARRAYSIZE(szKey), TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\CLSID\\%s\\ShellFolder"), wszCLSID);
if (SUCCEEDED(hr))
{
iRetVal = SHRegOpenUSKey(szKey, KEY_QUERY_VALUE, NULL, phk, FALSE);
}
}
return iRetVal;
}
ULONG CRegFolder::_GetPerUserAttributes(LPCIDLREGITEM pidlr)
{
DWORD dwAttribute = 0;
HUSKEY hk;
if (ERROR_SUCCESS == _RegOpenCLSIDUSKey(_GetPIDLRCLSID(pidlr), &hk))
{
DWORD cb = sizeof(dwAttribute);
DWORD dwType = REG_DWORD;
SHRegQueryUSValue(hk, TEXT("Attributes"), &dwType, &dwAttribute, &cb, FALSE, 0, sizeof(DWORD));
SHRegCloseUSKey(hk);
}
// we only allow these bits to change
return dwAttribute & (SFGAO_NONENUMERATED | SFGAO_CANDELETE | SFGAO_CANMOVE);
}
#define SFGAO_REQ_MASK (SFGAO_NONENUMERATED | SFGAO_CANDELETE | SFGAO_CANMOVE)
HRESULT CRegFolder::_AttributesOf(LPCIDLREGITEM pidlr, DWORD dwAttributesNeeded, DWORD *pdwAttributes)
{
HRESULT hr = S_OK;
*pdwAttributes = 0;
PDELEGATEITEMID pidld = _IsDelegate(pidlr);
if (pidld)
{
IShellFolder *psf;
hr = _GetDelegateFolder(pidld, IID_PPV_ARG(IShellFolder, &psf));
if (SUCCEEDED(hr))
{
*pdwAttributes = dwAttributesNeeded;
hr = psf->GetAttributesOf(1, (LPCITEMIDLIST*)&pidlr, pdwAttributes);
psf->Release();
}
}
else
{
EnterCriticalSection(&_cs);
CLSID clsid = _GetPIDLRCLSID(pidlr); // alignment
BOOL bGuidMatch = IsEqualGUID(clsid, _clsidAttributesCache);
if (bGuidMatch && ((dwAttributesNeeded & _dwAttributesCacheValid) == dwAttributesNeeded))
{
*pdwAttributes = _dwAttributesCache;
}
else
{
int iItem = _ReqItemIndex(pidlr);
// if the guid didn't match, we need to start from scratch.
// otherwise, we'll or back in the cahced bits...
if (!bGuidMatch)
{
_dwAttributesCacheValid = 0;
_dwAttributesCache = 0;
}
if (iItem >= 0)
{
*pdwAttributes = _aReqItems[iItem].dwAttributes;
// per machine attributes allow items to be hidden per machine
*pdwAttributes |= SHGetAttributesFromCLSID2(&clsid, 0, SFGAO_REQ_MASK) & SFGAO_REQ_MASK;
}
else
{
*pdwAttributes = SHGetAttributesFromCLSID2(&clsid, SFGAO_CANMOVE | SFGAO_CANDELETE, dwAttributesNeeded & ~_dwAttributesCacheValid);
}
*pdwAttributes |= _GetPerUserAttributes(pidlr); // hidden per user
*pdwAttributes |= _dwDefAttributes; // per folder defaults
*pdwAttributes |= _dwAttributesCache;
_clsidAttributesCache = clsid;
_dwAttributesCache = *pdwAttributes;
_dwAttributesCacheValid |= dwAttributesNeeded | *pdwAttributes; // if they gave us more than we asked for, cache them
}
LeaveCriticalSection(&_cs);
}
return hr;
}
HRESULT CRegFolder::GetAttributesOf(UINT cidl, LPCITEMIDLIST *apidl, ULONG *prgfInOut)
{
HRESULT hr;
if (!cidl)
{
// special case for the folder as a whole, so I know nothing about it.
hr = _psfOuter->GetAttributesOf(cidl, apidl, prgfInOut);
}
else
{
hr = S_OK;
UINT rgfOut = *prgfInOut;
LPCITEMIDLIST *ppidl = (LPCITEMIDLIST*)LocalAlloc(LPTR, cidl * sizeof(*ppidl));
if (ppidl)
{
LPCITEMIDLIST *ppidlEnd = ppidl + cidl;
for (int i = cidl - 1; SUCCEEDED(hr) && (i >= 0); --i)
{
LPCIDLREGITEM pidlr = _IsReg(apidl[i]);
if (pidlr)
{
if ((*prgfInOut & SFGAO_VALIDATE) && !_IsDelegate(pidlr))
{
if (!_IsInNameSpace(pidlr))
{
// validate by binding
IUnknown *punk;
hr = _BindToItem(pidlr, NULL, IID_PPV_ARG(IUnknown, &punk), FALSE);
if (SUCCEEDED(hr))
punk->Release();
}
}
DWORD dwAttributes;
hr = _AttributesOf(pidlr, *prgfInOut, &dwAttributes);
if (SUCCEEDED(hr))
rgfOut &= dwAttributes;
cidl--; // remove this from the list used below...
}
else
{
--ppidlEnd;
*ppidlEnd = apidl[i];
}
}
if (SUCCEEDED(hr) && cidl) // any non reg items left?
{
ULONG rgfThis = rgfOut;
hr = _psfOuter->GetAttributesOf(cidl, ppidlEnd, &rgfThis);
rgfOut &= rgfThis;
}
LocalFree((HLOCAL)ppidl);
*prgfInOut = rgfOut;
}
else
hr = E_OUTOFMEMORY;
}
return hr;
}
HRESULT CRegFolder::_CreateDefExtIconKey(HKEY hkey,
UINT cidl, LPCITEMIDLIST *apidl, int iItem,
REFIID riid, void** ppvOut)
{
// See if this guy has an icon handler
TCHAR szHandler[GUIDSTR_MAX];
HRESULT hr;
if (hkey &&
SUCCEEDED(AssocQueryStringByKey(NULL, ASSOCSTR_SHELLEXTENSION, hkey,
TEXT("IconHandler"), szHandler, IntToPtr_(LPDWORD, ARRAYSIZE(szHandler)))) &&
SUCCEEDED(SHExtCoCreateInstance(szHandler, NULL, NULL, riid, ppvOut)))
{
IShellExtInit *psei;
if (SUCCEEDED(((IUnknown*)*ppvOut)->QueryInterface(IID_PPV_ARG(IShellExtInit, &psei))))
{
IDataObject *pdto;
hr = GetUIObjectOf(NULL, cidl, apidl, IID_PPV_ARG_NULL(IDataObject, &pdto));
if (SUCCEEDED(hr))
{
hr = psei->Initialize(_GetFolderIDList(), pdto, hkey);
pdto->Release();
}
psei->Release();
}
else
{ // Object doesn't need to be initialized, no problemo
hr = S_OK;
}
if (SUCCEEDED(hr))
{
return S_OK;
}
((IUnknown *)*ppvOut)->Release(); // Lose this bad guy
}
// No icon handler (or icon handler punted); look for DefaultIcon key.
LPCTSTR pszIconFile;
int iDefIcon;
if (iItem >= 0)
{
pszIconFile = _aReqItems[iItem].pszIconFile;
iDefIcon = _aReqItems[iItem].iDefIcon;
}
else
{
pszIconFile = NULL;
iDefIcon = II_FOLDER;
}
return SHCreateDefExtIconKey(hkey, pszIconFile, iDefIcon, iDefIcon, -1, -1, GIL_PERCLASS, riid, ppvOut);
}
HRESULT CRegFolder::GetUIObjectOf(HWND hwnd, UINT cidl, LPCITEMIDLIST *apidl,
REFIID riid, UINT *prgfInOut, void **ppv)
{
HRESULT hr;
*ppv = NULL;
LPCIDLREGITEM pidlr = _AnyRegItem(cidl, apidl);
if (pidlr)
{
IShellFolder *psf;
if (_AllDelegates(cidl, apidl, &psf))
{
hr = psf->GetUIObjectOf(hwnd, cidl, apidl, riid, prgfInOut, ppv);
psf->Release();
}
else
{
if (IsEqualIID(riid, IID_IExtractIconA) || IsEqualIID(riid, IID_IExtractIconW))
{
HKEY hkCLSID;
int iItem = _ReqItemIndex(pidlr);
// try first to get a per-user icon
hr = SHRegGetCLSIDKey(_GetPIDLRCLSID(pidlr), NULL, TRUE, FALSE, &hkCLSID);
if (SUCCEEDED(hr))
{
hr = _CreateDefExtIconKey(hkCLSID, cidl, apidl, iItem, riid, ppv);
if (hr == S_FALSE)
{
((IUnknown *)*ppv)->Release(); // Lose this bad guy
*ppv = NULL;
}
RegCloseKey(hkCLSID);
}
//
// fall back to a per-class icon
//
if (*ppv == NULL)
{
hr = SHRegGetCLSIDKey(_GetPIDLRCLSID(pidlr), NULL, FALSE, FALSE, &hkCLSID);
if (SUCCEEDED(hr))
{
hr = _CreateDefExtIconKey(hkCLSID, cidl, apidl, iItem, riid, ppv);
RegCloseKey(hkCLSID);
}
}
}
else if (IsEqualIID(riid, IID_IQueryInfo))
{
hr = _GetInfoTip(pidlr, ppv);
}
else if (IsEqualIID(riid, IID_IQueryAssociations))
{
hr = _AssocCreate(pidlr, riid, ppv);
}
else if (IsEqualIID(riid, IID_IDataObject))
{
hr = CIDLData_CreateFromIDArray(_GetFolderIDList(), cidl, apidl, (IDataObject **)ppv);
}
else if (IsEqualIID(riid, IID_IContextMenu))
{
hr = _psfOuter->QueryInterface(IID_PPV_ARG(IShellFolder, &psf));
if (SUCCEEDED(hr))
{
HKEY keys[2];
_GetClassKeys(pidlr, &keys[0], &keys[1]);
hr = CDefFolderMenu_Create2Ex(_GetFolderIDList(), hwnd,
cidl, apidl,
psf, this,
ARRAYSIZE(keys), keys,
(IContextMenu **)ppv);
SHRegCloseKeys(keys, ARRAYSIZE(keys));
psf->Release();
}
}
else if (cidl == 1)
{
// blindly delegate unknown riid (IDropTarget, IShellLink, etc) through
// APP COMPAT! GetUIObjectOf does not support multilevel pidls, but
// Symantec Internet Fast Find does a
//
// psfDesktop->GetUIObjectOf(1, &pidlComplex, IID_IDropTarget, ...)
//
// on a multilevel pidl and expects it to work. I guess it worked by
// lucky accident once upon a time, so now it must continue to work,
// but only on the desktop.
//
hr = _CreateViewObjectFor(pidlr, hwnd, riid, ppv, !_IsDesktop());
}
else
{
hr = E_NOINTERFACE;
}
}
}
else
{
hr = _psfOuter->GetUIObjectOf(hwnd, cidl, apidl, riid, prgfInOut, ppv);
}
return hr;
}
HRESULT CRegFolder::GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD dwFlags, STRRET *pStrRet)
{
HRESULT hr;
LPCIDLREGITEM pidlr = _IsReg(pidl);
if (pidlr)
{
LPCITEMIDLIST pidlNext = _ILNext(pidl);
if (ILIsEmpty(pidlNext))
{
TCHAR szName[MAX_PATH];
hr = _GetDisplayName(pidlr, dwFlags, szName, ARRAYSIZE(szName));
if (SUCCEEDED(hr))
hr = StringToStrRet(szName, pStrRet);
}
else
{
IShellFolder *psfNext;
hr = _BindToItem(pidlr, NULL, IID_PPV_ARG(IShellFolder, &psfNext), TRUE);
if (SUCCEEDED(hr))
{
hr = psfNext->GetDisplayNameOf(pidlNext, dwFlags, pStrRet);
// If it returns an offset to the pidlNext, we should
// change the offset relative to pidl.
if (SUCCEEDED(hr) && pStrRet->uType == STRRET_OFFSET)
pStrRet->uOffset += (DWORD)((BYTE *)pidlNext - (BYTE *)pidl);
psfNext->Release();
}
}
}
else
hr = _psfOuter->GetDisplayNameOf(pidl, dwFlags, pStrRet);
return hr;
}
HRESULT CRegFolder::SetNameOf(HWND hwnd, LPCITEMIDLIST pidl,
LPCOLESTR pszName, DWORD dwFlags, LPITEMIDLIST *ppidlOut)
{
LPCIDLREGITEM pidlr = _IsReg(pidl);
if (pidlr)
{
HRESULT hr = E_INVALIDARG;
if (ppidlOut)
*ppidlOut = NULL;
PDELEGATEITEMID pidld = _IsDelegate(pidlr);
if (pidld)
{
IShellFolder *psf;
hr = _GetDelegateFolder(pidld, IID_PPV_ARG(IShellFolder, &psf));
if (SUCCEEDED(hr))
{
hr = psf->SetNameOf(hwnd, pidl, pszName, dwFlags, ppidlOut);
psf->Release();
}
}
else
{
HKEY hkCLSID;
_ClearNameFromCache();
// See if per-user entry exists...
hr = SHRegGetCLSIDKey(_GetPIDLRCLSID(pidlr), NULL, TRUE, TRUE, &hkCLSID);
// If no per-user, then use per-machine...
if (FAILED(hr))
{
_GetClassKeys(pidlr, &hkCLSID, NULL);
if (hkCLSID)
{
hr = S_OK;
}
else
{
hr = E_FAIL;
}
}
if (SUCCEEDED(hr))
{
TCHAR szName[MAX_PATH];
SHUnicodeToTChar(pszName, szName, ARRAYSIZE(szName));
if (RegSetValue(hkCLSID, NULL, REG_SZ, szName, (lstrlen(szName) + 1) * sizeof(szName[0])) == ERROR_SUCCESS)
{
LPITEMIDLIST pidlAbs = ILCombine(_GetFolderIDList(), pidl);
if (pidlAbs)
{
SHChangeNotify(SHCNE_UPDATEITEM, SHCNF_IDLIST, pidlAbs, NULL);
ILFree(pidlAbs);
}
if (ppidlOut)
*ppidlOut = ILClone(pidl); // name is not in the PIDL so old == new
hr = S_OK;
}
else
hr = E_FAIL;
RegCloseKey(hkCLSID);
}
}
return hr;
}
return _psfOuter->SetNameOf(hwnd, pidl, pszName, dwFlags, ppidlOut);
}
HRESULT CRegFolder::GetDefaultSearchGUID(LPGUID lpGuid)
{
return _psfOuter->GetDefaultSearchGUID(lpGuid);
}
HRESULT CRegFolder::EnumSearches(LPENUMEXTRASEARCH *ppenum)
{
return _psfOuter->EnumSearches(ppenum);
}
HRESULT CRegFolder::GetDefaultColumn(DWORD dwRes, ULONG *pSort, ULONG *pDisplay)
{
return _psfOuter->GetDefaultColumn(dwRes, pSort, pDisplay);
}
HRESULT CRegFolder::GetDefaultColumnState(UINT iColumn, DWORD *pbState)
{
return _psfOuter->GetDefaultColumnState(iColumn, pbState);
}
HRESULT CRegFolder::GetDetailsEx(LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv)
{
HRESULT hr = E_NOTIMPL;
LPCIDLREGITEM pidlr = _IsReg(pidl);
if (pidlr)
{
PDELEGATEITEMID pidld = _IsDelegate(pidlr);
if (pidld)
{
IShellFolder2 *psf2;
hr = _GetDelegateFolder(pidld, IID_PPV_ARG(IShellFolder2, &psf2));
if (SUCCEEDED(hr))
{
hr = psf2->GetDetailsEx(pidl, pscid, pv);
psf2->Release();
}
}
else
{
TCHAR szTemp[INFOTIPSIZE];
szTemp[0] = 0;
if (IsEqualSCID(*pscid, SCID_DESCRIPTIONID))
{
SHDESCRIPTIONID did;
did.dwDescriptionId = SHDID_ROOT_REGITEM;
did.clsid = _GetPIDLRCLSID(pidlr);
hr = InitVariantFromBuffer(pv, &did, sizeof(did));
}
else if (IsEqualSCID(*pscid, SCID_NAME))
{
_GetDisplayName(pidlr, SHGDN_NORMAL, szTemp, ARRAYSIZE(szTemp));
hr = InitVariantFromStr(pv, szTemp);
}
else if (IsEqualSCID(*pscid, SCID_TYPE))
{
LoadString(HINST_THISDLL, IDS_DRIVES_REGITEM, szTemp, ARRAYSIZE(szTemp));
hr = InitVariantFromStr(pv, szTemp);
}
else if (IsEqualSCID(*pscid, SCID_Comment))
{
_GetRegItemColumnFromRegistry(pidlr, TEXT("InfoTip"), szTemp, ARRAYSIZE(szTemp));
hr = InitVariantFromStr(pv, szTemp);
}
else if (IsEqualSCID(*pscid, SCID_FolderIntroText))
{
_GetRegItemColumnFromRegistry(pidlr, TEXT("IntroText"), szTemp, ARRAYSIZE(szTemp));
hr = InitVariantFromStr(pv, szTemp);
}
else
{
TCHAR ach[SCIDSTR_MAX];
StringFromSCID(pscid, ach, ARRAYSIZE(ach));
hr = _GetRegItemVariantFromRegistry(pidlr, ach, pv);
}
}
}
else
{
hr = _psfOuter->GetDetailsEx(pidl, pscid, pv);
}
return hr;
}
HRESULT CRegFolder::GetDetailsOf(LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *pDetail)
{
HRESULT hr = E_FAIL;
LPCIDLREGITEM pidlr = _IsReg(pidl);
if (pidlr)
{
pDetail->str.uType = STRRET_CSTR;
pDetail->str.cStr[0] = 0;
SHCOLUMNID scid;
hr = _psfOuter->MapColumnToSCID(iColumn, &scid);
if (SUCCEEDED(hr))
{
VARIANT var = {0};
hr = GetDetailsEx(pidl, &scid, &var);
if (SUCCEEDED(hr))
{
// we need to use SHFormatForDisplay (or we could have use IPropertyUI)
// to format arbitrary properties into the right display type
TCHAR szText[MAX_PATH];
hr = SHFormatForDisplay(scid.fmtid, scid.pid, (PROPVARIANT *)&var,
PUIFFDF_DEFAULT, szText, ARRAYSIZE(szText));
if (SUCCEEDED(hr))
{
hr = StringToStrRet(szText, &pDetail->str);
}
VariantClear(&var);
}
}
}
else
{
hr = _psfOuter->GetDetailsOf(pidl, iColumn, pDetail);
}
return hr;
}
HRESULT CRegFolder::MapColumnToSCID(UINT iColumn, SHCOLUMNID *pscid)
{
return _psfOuter->MapColumnToSCID(iColumn, pscid);
}
HRESULT CRegFolder::_GetOverlayInfo(LPCIDLREGITEM pidlr, int *pIndex, BOOL fIconIndex)
{
HRESULT hr = E_FAIL;
const CLSID clsid = _GetPIDLRCLSID(pidlr); // alignment
if (SHQueryShellFolderValue(&clsid, TEXT("QueryForOverlay")))
{
IShellIconOverlay* psio;
hr = _BindToItem(pidlr, NULL, IID_PPV_ARG(IShellIconOverlay, &psio), TRUE);
if (SUCCEEDED(hr))
{
// NULL pidl means "I want to know about YOU, folder, not one of your kids",
// we only pass that though when its is not a deligate.
LPITEMIDLIST pidlToPass = (LPITEMIDLIST)_IsDelegate(pidlr);
if (fIconIndex)
hr = psio->GetOverlayIconIndex(pidlToPass, pIndex);
else
hr = psio->GetOverlayIndex(pidlToPass, pIndex);
psio->Release();
}
}
return hr;
}
// IShellIconOverlay
HRESULT CRegFolder::GetOverlayIndex(LPCITEMIDLIST pidl, int *pIndex)
{
HRESULT hr = E_FAIL;
LPCIDLREGITEM pidlr = _IsReg(pidl);
if (pidlr)
{
hr = _GetOverlayInfo(pidlr, pIndex, FALSE);
}
else if (_psioOuter)
{
hr = _psioOuter->GetOverlayIndex(pidl, pIndex);
}
return hr;
}
HRESULT CRegFolder::GetOverlayIconIndex(LPCITEMIDLIST pidl, int *pIconIndex)
{
HRESULT hr = E_FAIL;
LPCIDLREGITEM pidlr = _IsReg(pidl);
if (pidlr)
{
hr = _GetOverlayInfo(pidlr, pIconIndex, TRUE);
}
else if (_psioOuter)
{
hr = _psioOuter->GetOverlayIconIndex(pidl, pIconIndex);
}
return hr;
}
// CContextMenuCB
DWORD CALLBACK _RegFolderPropThreadProc(void *pv)
{
PROPSTUFF *pdps = (PROPSTUFF *)pv;
CRegFolder *prf = (CRegFolder *)pdps->psf;
STGMEDIUM medium;
ULONG_PTR dwCookie = 0;
ActivateActCtx(NULL, &dwCookie);
LPIDA pida = DataObj_GetHIDA(pdps->pdtobj, &medium);
if (pida)
{
LPCIDLREGITEM pidlr = prf->_IsReg(IDA_GetIDListPtr(pida, 0));
if (pidlr)
{
int iItem = prf->_ReqItemIndex(pidlr);
if (iItem >= 0 && prf->_aReqItems[iItem].pszCPL)
SHRunControlPanel(prf->_aReqItems[iItem].pszCPL, NULL);
else
{
TCHAR szName[MAX_PATH];
if (SUCCEEDED(prf->_GetDisplayName(pidlr, SHGDN_NORMAL, szName, ARRAYSIZE(szName))))
{
HKEY hk;
prf->_GetClassKeys(pidlr, &hk, NULL);
if (hk)
{
SHOpenPropSheet(szName, &hk, 1, NULL, pdps->pdtobj, NULL, (LPCTSTR)pdps->pStartPage);
RegCloseKey(hk);
}
}
}
}
HIDA_ReleaseStgMedium(pida, &medium);
}
return 0;
}
DWORD DisconnectDialogOnThread(void *pv)
{
WNetDisconnectDialog(NULL, RESOURCETYPE_DISK);
SHChangeNotifyHandleEvents(); // flush any drive notifications
return 0;
}
HRESULT CRegFolder::CallBack(IShellFolder *psf, HWND hwnd, IDataObject *pdtobj,
UINT uMsg, WPARAM wParam, LPARAM lParam)
{
HRESULT hr = S_OK;
switch (uMsg)
{
case DFM_MERGECONTEXTMENU:
{
STGMEDIUM medium;
LPIDA pida = DataObj_GetHIDA(pdtobj, &medium);
if (pida)
{
// some ugly specal cases...
if (HIDA_GetCount(medium.hGlobal) == 1)
{
LPCIDLREGITEM pidlr = _IsReg(IDA_GetIDListPtr(pida, 0));
if (pidlr && !_IsDelegate(pidlr))
{
const CLSID clsid = _GetPIDLRCLSID(pidlr); // alignment
if ((IsEqualGUID(clsid, CLSID_MyComputer) ||
IsEqualGUID(clsid, CLSID_NetworkPlaces)) &&
(GetSystemMetrics(SM_NETWORK) & RNC_NETWORKS) &&
!SHRestricted(REST_NONETCONNECTDISCONNECT))
{
CDefFolderMenu_MergeMenu(HINST_THISDLL, POPUP_DESKTOP_ITEM, 0, (LPQCMINFO)lParam);
}
}
}
HIDA_ReleaseStgMedium(pida, &medium);
}
}
break;
case DFM_GETHELPTEXT:
LoadStringA(HINST_THISDLL, LOWORD(wParam) + IDS_MH_FSIDM_FIRST, (LPSTR)lParam, HIWORD(wParam));;
break;
case DFM_GETHELPTEXTW:
LoadStringW(HINST_THISDLL, LOWORD(wParam) + IDS_MH_FSIDM_FIRST, (LPWSTR)lParam, HIWORD(wParam));;
break;
case DFM_INVOKECOMMANDEX:
{
DFMICS *pdfmics = (DFMICS *)lParam;
switch (wParam)
{
case FSIDM_CONNECT:
SHStartNetConnectionDialog(NULL, NULL, RESOURCETYPE_DISK);
break;
case FSIDM_DISCONNECT:
SHCreateThread(DisconnectDialogOnThread, NULL, CTF_COINIT, NULL);
break;
case DFM_CMD_PROPERTIES:
hr = SHLaunchPropSheet(_RegFolderPropThreadProc, pdtobj, (LPCTSTR)pdfmics->lParam, this, NULL);
break;
case DFM_CMD_DELETE:
_Delete(hwnd, pdfmics->fMask, pdtobj);
break;
default:
// This is one of view menu items, use the default code.
hr = S_FALSE;
break;
}
}
break;
default:
hr = E_NOTIMPL;
break;
}
return hr;
}
// IRegItemsFolder
TCHAR const c_szRegExplorerBackslash[] = REGSTR_PATH_EXPLORER TEXT("\\");
HRESULT CRegFolder::Initialize(REGITEMSINFO *pri)
{
ASSERT(pri != NULL);
HRESULT hr = E_INVALIDARG;
if (!_fcs)
{
if (!InitializeCriticalSectionAndSpinCount(&_cs, 0))
{
return E_FAIL;
}
}
_fcs = TRUE;
_pszRegKey = pri->pszRegKey;
_pPolicy = pri->pPolicy;
_chRegItem = pri->cRegItem;
_bFlags = pri->bFlags;
_iTypeOuter = pri->iCmp > 0 ? REGORDERTYPE_OUTERAFTER : REGORDERTYPE_OUTERBEFORE ;
_dwDefAttributes = pri->rgfRegItems;
_dwSortAttrib = pri->dwSortAttrib;
_cbPadding = pri->cbPadding;
_bFlagsLegacy = pri->bFlagsLegacy;
// If the registry key lives under HKEY_PATH_EXPLORER, then
// we will also support per-session regitems.
//
int cchPrefix = ARRAYSIZE(c_szRegExplorerBackslash) - 1;
if (StrCmpNI(_pszRegKey, c_szRegExplorerBackslash, cchPrefix) == 0)
{
_pszSesKey = _pszRegKey + cchPrefix;
}
else
{
_pszSesKey = NULL;
}
if ((RIISA_ORIGINAL == _dwSortAttrib) ||
(RIISA_FOLDERFIRST == _dwSortAttrib) ||
(RIISA_ALPHABETICAL == _dwSortAttrib))
{
Str_SetPtr(&_pszMachine, pri->pszMachine); // save a copy of this
_aReqItems = (REQREGITEM *)LocalAlloc(LPTR, sizeof(*_aReqItems) * pri->iReqItems);
if (!_aReqItems)
return E_OUTOFMEMORY;
memcpy(_aReqItems, pri->pReqItems, sizeof(*_aReqItems) * pri->iReqItems);
_nRequiredItems = pri->iReqItems;
// If we are aggregated, cache the _psioOuter and _psfOuter
_QueryOuterInterface(IID_PPV_ARG(IShellIconOverlay, &_psioOuter));
hr = _QueryOuterInterface(IID_PPV_ARG(IShellFolder2, &_psfOuter));
}
return hr;
}
//
// instance creation of the RegItems object
//
STDAPI CRegFolder_CreateInstance(REGITEMSINFO *pri, IUnknown *punkOuter, REFIID riid, void **ppv)
{
HRESULT hr;
// we only suport being created as an agregate
if (!punkOuter || !IsEqualIID(riid, IID_IUnknown))
{
ASSERT(0);
return E_FAIL;
}
CRegFolder *prif = new CRegFolder(punkOuter);
if (prif)
{
hr = prif->Initialize(pri); // initialize the regfolder
if (SUCCEEDED(hr))
hr = prif->_GetInner()->QueryInterface(riid, ppv);
//
// If the Initalize and QueryInterface succeeded, this will drop
// the refcount from 2 to 1. If they failed, then this will drop
// the refcount from 1 to 0 and free the object.
//
ULONG cRef = prif->_GetInner()->Release();
//
// On success, the object should have a refcout of exactly 1.
// On failure, the object should have a refcout of exactly 0.
//
ASSERT(SUCCEEDED(hr) == (BOOL)cRef);
}
else
hr = E_OUTOFMEMORY;
return hr;
}
CRegFolderEnum::CRegFolderEnum(CRegFolder* prf, DWORD grfFlags, IEnumIDList* peidl,
HDCA hdca, HDCA hdcaDel,
REGITEMSPOLICY* pPolicy) :
_cRef(1),
_grfFlags(grfFlags),
_prf(prf),
_peidl(peidl),
_hdca(hdca),
_pPolicy(pPolicy),
_hdcaDel(hdcaDel)
{
ASSERT(_iCur == 0);
ASSERT(_iCurDel == 0);
ASSERT(_peidlDel == NULL);
_prf->AddRef();
if (_peidl)
_peidl->AddRef();
DllAddRef();
}
CRegFolderEnum::~CRegFolderEnum()
{
if (_hdca)
DCA_Destroy(_hdca);
if (_hdcaDel)
DCA_Destroy(_hdcaDel);
ATOMICRELEASE(_prf);
ATOMICRELEASE(_peidl);
ATOMICRELEASE(_peidlDel);
DllRelease();
}
//
// IUnknown
//
STDMETHODIMP_(ULONG) CRegFolderEnum::AddRef()
{
return InterlockedIncrement(&_cRef);
}
STDMETHODIMP_(ULONG) CRegFolderEnum::Release()
{
ASSERT( 0 != _cRef );
ULONG cRef = InterlockedDecrement(&_cRef);
if ( 0 == cRef )
{
delete this;
}
return cRef;
}
HRESULT CRegFolderEnum::QueryInterface(REFIID riid, void **ppv)
{
static const QITAB qit[] = {
QITABENT(CRegFolderEnum, IEnumIDList), // IID_IEnumIDList
QITABENT(CRegFolderEnum, IObjectWithSite), // IID_IObjectWithSite
{ 0 },
};
return QISearch(this, qit, riid, ppv);
}
//
// IEnumIDList
//
BOOL CRegFolderEnum::_TestFolderness(DWORD dwAttribItem)
{
if ((_grfFlags & (SHCONTF_FOLDERS | SHCONTF_NONFOLDERS)) != (SHCONTF_FOLDERS | SHCONTF_NONFOLDERS))
{
if (dwAttribItem & SFGAO_FOLDER)
{
if (!(_grfFlags & SHCONTF_FOLDERS))
return FALSE;
}
else
{
if (!(_grfFlags & SHCONTF_NONFOLDERS))
return FALSE;
}
}
return TRUE;
}
BOOL CRegFolderEnum::_TestHidden(LPCIDLREGITEM pidlRegItem)
{
CLSID clsidRegItem = _prf->_GetPIDLRCLSID(pidlRegItem);
return _TestHiddenInWebView(&clsidRegItem) || _TestHiddenInDomain(&clsidRegItem);
}
BOOL CRegFolderEnum::_TestHiddenInWebView(LPCLSID clsidRegItem)
{
BOOL fRetVal = FALSE;
if (S_FALSE == SHShouldShowWizards(_punkSite))
{
fRetVal = SHQueryShellFolderValue(clsidRegItem, TEXT("HideInWebView"));
}
return fRetVal;
}
BOOL CRegFolderEnum::_TestHiddenInDomain(LPCLSID clsidRegItem)
{
return IsOS(OS_DOMAINMEMBER) && SHQueryShellFolderValue(clsidRegItem, TEXT("HideInDomain"));
}
// Check policy restrictions
BOOL CRegFolderEnum::_IsRestricted()
{
BOOL bIsRestricted = FALSE;
if (_pPolicy)
{
TCHAR szName[256];
szName[0] = 0;
HKEY hkRoot;
if (ERROR_SUCCESS == RegOpenKeyEx(HKEY_CLASSES_ROOT, _T("CLSID"), NULL, KEY_QUERY_VALUE, &hkRoot))
{
TCHAR szGUID[64];
SHStringFromGUID(*DCA_GetItem(_hdca, _iCur - 1), szGUID, ARRAYSIZE(szGUID));
SHLoadLegacyRegUIString(hkRoot, szGUID, szName, ARRAYSIZE(szName));
RegCloseKey(hkRoot);
}
if (szName[0])
{
if (SHRestricted(_pPolicy->restAllow) && !IsNameListedUnderKey(szName, _pPolicy->pszAllow))
bIsRestricted = TRUE;
if (SHRestricted(_pPolicy->restDisallow) && IsNameListedUnderKey(szName, _pPolicy->pszDisallow))
bIsRestricted = TRUE;
}
}
return bIsRestricted;
}
BOOL CRegFolderEnum::_WrongMachine()
{
BOOL bWrongMachine = FALSE;
// We're filling the regitem with class id clsid. If this is a
// remote item, first invoke the class to see if it really wants
// to be enumerated for this remote computer.
if (_prf->_pszMachine)
{
IUnknown* punk;
// Don't need DCA_ExtCreateInstance since these keys come from
// HKLM which is already trusted and HKCU which is the user's
// own fault.
HRESULT hr = DCA_CreateInstance(_hdca, _iCur - 1, IID_PPV_ARG(IUnknown, &punk));
if (SUCCEEDED(hr))
{
hr = _prf->_InitFromMachine(punk, TRUE);
punk->Release();
}
bWrongMachine = FAILED(hr);
}
return bWrongMachine;
}
HRESULT CRegFolderEnum::Next(ULONG celt, LPITEMIDLIST *ppidlOut, ULONG *pceltFetched)
{
// enumerate from the DCA containing the regitems objects
if (_hdca)
{
if (0 == (SHCONTF_NETPRINTERSRCH & _grfFlags)) //don't enumerate phantom folders for printer search dialog
{
while (_iCur < DCA_GetItemCount(_hdca))
{
_iCur++;
if (_WrongMachine())
continue;
if (_IsRestricted())
continue;
// Ok, actually enumerate the item
HRESULT hr;
IDLREGITEM* pidlRegItem = _prf->_CreateAndFillIDLREGITEM(DCA_GetItem(_hdca, _iCur-1));
if (pidlRegItem)
{
DWORD dwAttribItem;
_prf->_AttributesOf(pidlRegItem, SFGAO_NONENUMERATED | SFGAO_FOLDER, &dwAttribItem);
if (!(dwAttribItem & SFGAO_NONENUMERATED) &&
_TestFolderness(dwAttribItem) &&
!_TestHidden(pidlRegItem))
{
*ppidlOut = (LPITEMIDLIST)pidlRegItem;
hr = S_OK;
}
else
{
SHFree(pidlRegItem);
continue;
}
}
else
{
hr = E_OUTOFMEMORY;
}
if (SUCCEEDED(hr) && pceltFetched)
*pceltFetched = 1;
return hr;
}
}
}
// enumerate from the DCA containing the delegate shell folders
while (_peidlDel || (_hdcaDel && (_iCurDel < DCA_GetItemCount(_hdcaDel))))
{
// we have an enumerator object, so lets call it and see
// what it generates, if it runs out of items then we either
// give up (saying were done) or allow us to be called again.
if (_peidlDel)
{
if (S_OK == _peidlDel->Next(celt, ppidlOut, pceltFetched))
return S_OK;
ATOMICRELEASE(_peidlDel);
}
else
{
// we didn't have an enumerator to call, so lets try and
// create an new IDelegateFolderObject, if that worked
// then we can set its item allocator, then get an
// enumerator back from it.
IShellFolder *psfDelegate;
if (SUCCEEDED(_prf->_CreateDelegateFolder(DCA_GetItem(_hdcaDel, _iCurDel++), IID_PPV_ARG(IShellFolder, &psfDelegate))))
{
psfDelegate->EnumObjects(NULL, _grfFlags, &_peidlDel);
psfDelegate->Release();
}
}
}
// now DKA, or we are just about done so lets pass to the inner ISF
// and see what they return.
if (_peidl)
return _peidl->Next(celt, ppidlOut, pceltFetched);
*ppidlOut = NULL;
if (pceltFetched)
pceltFetched = 0;
return S_FALSE;
}
STDMETHODIMP CRegFolderEnum::Reset()
{
// Adaptec Easy CD Creator (versions 3.0, 3.01, 3.5) enumerates the
// items in an IShellFolder like this:
//
// psf->EnumObjects(&penum);
// UINT cObjects = 0;
// while (SUCCEEDED(penum->Next(...)) {
// [code]
// penum->Reset();
// penum->Skip(++cObjects);
// }
//
// So they took an O(n) algorithm and turned it into an O(n^2)
// algorithm. They got away with it because in the old days,
// regfldr implemented neither IEnumIDList::Reset nor
// IEnumIDList::Skip, so the two calls were just NOPs.
//
// Now we implement IEnumIDList::Reset, so without this hack,
// they end up enumerating the same object over and over again.
if (SHGetAppCompatFlags(ACF_IGNOREENUMRESET) & ACF_IGNOREENUMRESET)
return E_NOTIMPL;
_iCurDel = _iCur = 0;
ATOMICRELEASE(_peidlDel);
if (_peidl)
return _peidl->Reset();
return S_OK;
}
STDMETHODIMP CRegFolderEnum::SetSite(IUnknown *punkSite)
{
IUnknown_SetSite(_peidl, punkSite);
return CObjectWithSite::SetSite(punkSite);
}
//
// Delegate Malloc functions
//
#undef new // Hack!! Need to remove this (daviddv)
class CDelagateMalloc : public IMalloc
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID,void **);
STDMETHODIMP_(ULONG) AddRef(void);
STDMETHODIMP_(ULONG) Release(void);
// IMalloc
STDMETHODIMP_(void *) Alloc(SIZE_T cb);
STDMETHODIMP_(void *) Realloc(void *pv, SIZE_T cb);
STDMETHODIMP_(void) Free(void *pv);
STDMETHODIMP_(SIZE_T) GetSize(void *pv);
STDMETHODIMP_(int) DidAlloc(void *pv);
STDMETHODIMP_(void) HeapMinimize();
private:
CDelagateMalloc(void *pv, SIZE_T cbSize, WORD wOuter);
~CDelagateMalloc() {}
void* operator new(size_t cbClass, SIZE_T cbSize)
{
return ::operator new(cbClass + cbSize);
}
friend HRESULT CDelegateMalloc_Create(void *pv, SIZE_T cbSize, WORD wOuter, IMalloc **ppmalloc);
protected:
LONG _cRef;
WORD _wOuter; // delegate item outer signature
WORD _wUnused; // to allign
#ifdef DEBUG
UINT _cAllocs;
#endif
SIZE_T _cb;
BYTE _data[EMPTY_SIZE];
};
CDelagateMalloc::CDelagateMalloc(void *pv, SIZE_T cbSize, WORD wOuter)
{
_cRef = 1;
_wOuter = wOuter;
_cb = cbSize;
memcpy(_data, pv, _cb);
}
HRESULT CDelagateMalloc::QueryInterface(REFIID riid, void **ppvObj)
{
static const QITAB qit[] = {
QITABENT(CDelagateMalloc, IMalloc),
{ 0 },
};
return QISearch(this, qit, riid, ppvObj);
}
ULONG CDelagateMalloc::AddRef()
{
return InterlockedIncrement(&_cRef);
}
ULONG CDelagateMalloc::Release()
{
ASSERT( 0 != _cRef );
ULONG cRef = InterlockedDecrement(&_cRef);
if ( 0 == cRef )
{
delete this;
}
return cRef;
}
// the cbInner is the size of the data needed by the delegate. we need to compute
// the full size of the pidl for the allocation and init that we the outer folder data
void *CDelagateMalloc::Alloc(SIZE_T cbInner)
{
DELEGATEITEMID *pidl;
SIZE_T cbAlloc =
sizeof(DELEGATEITEMID) - sizeof(pidl->rgb[0]) + // header
cbInner + // inner
_cb + // outer data
sizeof(WORD); // trailing null (pidl terminator)
pidl = (DELEGATEITEMID *)SHAlloc(cbAlloc);
if (pidl)
{
ZeroMemory(pidl, cbAlloc); // make it all empty
pidl->cbSize = (WORD)cbAlloc - sizeof(WORD);
pidl->wOuter = _wOuter;
pidl->cbInner = (WORD)cbInner;
memcpy(&pidl->rgb[cbInner], _data, _cb);
#ifdef DEBUG
_cAllocs++;
#endif
}
return pidl;
}
void *CDelagateMalloc::Realloc(void *pv, SIZE_T cb)
{
return NULL;
}
void CDelagateMalloc::Free(void *pv)
{
SHFree(pv);
}
SIZE_T CDelagateMalloc::GetSize(void *pv)
{
return (SIZE_T)-1;
}
int CDelagateMalloc::DidAlloc(void *pv)
{
return -1;
}
void CDelagateMalloc::HeapMinimize()
{
}
STDAPI CDelegateMalloc_Create(void *pv, SIZE_T cbSize, WORD wOuter, IMalloc **ppmalloc)
{
HRESULT hr;
CDelagateMalloc *pdm = new(cbSize) CDelagateMalloc(pv, cbSize, wOuter);
if (pdm)
{
hr = pdm->QueryInterface(IID_PPV_ARG(IMalloc, ppmalloc));
pdm->Release();
}
else
hr = E_OUTOFMEMORY;
return hr;
}