c377793b7ee748d502d4094268b447765613a144
[openafs.git] / src / WINNT / client_exp / shell_ext.cpp
1 /*
2  * Copyright 2000, International Business Machines Corporation and others.
3  * All Rights Reserved.
4  * 
5  * This software has been released under the terms of the IBM Public
6  * License.  For details, see the LICENSE file in the top-level source
7  * directory or online at http://www.openafs.org/dl/license10.html
8  */
9
10 extern "C" {
11 #include <afs/param.h>
12 #include <afs/stds.h>
13 }
14
15 #include <afxpriv.h>
16 #include "stdafx.h"
17 #include <atlconv.h>
18 #include <sys/types.h>
19 #include <sys/stat.h>
20 #include "afs_shl_ext.h"
21 #include "shell_ext.h"
22 #include "volume_info.h"
23 #include "set_afs_acl.h"
24 #include "gui2fs.h"
25 #include "make_mount_point_dlg.h"
26 #include "msgs.h"
27 #include "server_status_dlg.h"
28 #include "auth_dlg.h"
29 #include "submounts_dlg.h"
30 #include "make_symbolic_link_dlg.h"
31 #include <WINNT\afsreg.h>
32
33 #ifdef _DEBUG
34 #define new DEBUG_NEW
35 #undef THIS_FILE
36 static char THIS_FILE[] = __FILE__;
37 #endif
38
39
40 ULONG nCMRefCount = 0;  // IContextMenu ref count
41 ULONG nSERefCount = 0;  // IShellExtInit ref count
42 ULONG nICRefCount=0;
43 ULONG nTPRefCount=0;
44 ULONG nXPRefCount=0;
45
46 #define MAXSIZE 2048 /* most I'll get back from PIOCTL */
47 #define PCCHAR(str)     ((char *)(const char *)str)
48 static char space[MAXSIZE];
49
50 static BOOL IsADir(const CString& strName)
51 {
52         struct _stat statbuf;
53
54         if (_stat(strName, &statbuf) < 0)
55                 return FALSE;
56
57         return statbuf.st_mode & _S_IFDIR;
58 }
59
60 /////////////////////////////////////////////////////////////////////////////
61 // CShellExt
62
63 IMPLEMENT_DYNCREATE(CShellExt, CCmdTarget)
64 #define REG_CLIENT_PARMS_KEY    "SYSTEM\\CurrentControlSet\\Services\\TransarcAFSDaemon\\Parameters"
65 #define OVERLAYENABLED 1
66
67 CShellExt::CShellExt()
68 {
69         HKEY NPKey;
70         EnableAutomation();
71         nCMRefCount++;
72         HRESULT hr;
73         UINT code;
74         DWORD ShellOption,LSPsize,LSPtype;
75         hr = SHGetMalloc(&m_pAlloc);
76         m_bIsOverlayEnabled=FALSE;
77         if (FAILED(hr))
78                 m_pAlloc = NULL;
79         RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,0, KEY_QUERY_VALUE, &NPKey);
80         LSPsize=sizeof(ShellOption);
81         code=RegQueryValueEx(NPKey, "ShellOption", NULL,
82                              &LSPtype, (LPBYTE)&ShellOption, &LSPsize);
83         RegCloseKey (NPKey);
84         m_bIsOverlayEnabled=((code==0) && (LSPtype==REG_DWORD) && ((ShellOption & OVERLAYENABLED)!=0));
85         TRACE("Create CShellExt, Ref count %d/n",nCMRefCount);
86 }
87
88 CShellExt::~CShellExt()
89 {
90         if(m_pAlloc) m_pAlloc->Release();
91         nCMRefCount--;
92         TRACE("Destroy CShellExt, Ref count %d/n",nCMRefCount);
93 }
94
95
96 void CShellExt::OnFinalRelease()
97 {
98         // When the last reference for an automation object is released
99         // OnFinalRelease is called.  The base class will automatically
100         // deletes the object.  Add additional cleanup required for your
101         // object before calling the base class.
102
103         CCmdTarget::OnFinalRelease();
104 }
105
106
107 BEGIN_MESSAGE_MAP(CShellExt, CCmdTarget)
108         //{{AFX_MSG_MAP(CShellExt)
109                 // NOTE - the ClassWizard will add and remove mapping macros here.
110         //}}AFX_MSG_MAP
111 END_MESSAGE_MAP()
112
113 BEGIN_DISPATCH_MAP(CShellExt, CCmdTarget)
114         //{{AFX_DISPATCH_MAP(CShellExt)
115                 // NOTE - the ClassWizard will add and remove mapping macros here.
116         //}}AFX_DISPATCH_MAP
117 END_DISPATCH_MAP()
118
119 // Note: we add support for IID_IShellExt to support typesafe binding
120 //  from VBA.  This IID must match the GUID that is attached to the 
121 //  dispinterface in the .ODL file.
122
123 // {DC515C27-6CAC-11D1-BAE7-00C04FD140D2}
124 static const IID IID_IShellExt =
125 { 0xdc515c27, 0x6cac, 0x11d1, { 0xba, 0xe7, 0x0, 0xc0, 0x4f, 0xd1, 0x40, 0xd2 } };
126
127 BEGIN_INTERFACE_MAP(CShellExt, CCmdTarget)
128         INTERFACE_PART(CShellExt, IID_IShellExt, Dispatch)
129     INTERFACE_PART(CShellExt, IID_IContextMenu, MenuExt)
130     INTERFACE_PART(CShellExt, IID_IShellExtInit, ShellInit)
131         INTERFACE_PART(CShellExt, IID_IShellIconOverlayIdentifier, IconExt)
132         INTERFACE_PART(CShellExt, IID_IQueryInfo , ToolTipExt)
133         INTERFACE_PART(CShellExt, IID_IPersistFile , PersistFileExt)
134 END_INTERFACE_MAP()
135
136 IMPLEMENT_OLECREATE(CShellExt, STR_EXT_TITLE, 0xdc515c27, 0x6cac, 0x11d1, 0xba, 0xe7, 0x0, 0xc0, 0x4f, 0xd1, 0x40, 0xd2)
137
138
139 /////////////////////////////////////////////////////////////////////////////
140 // CShellExt message handlers
141 /////////////////////////////////////////////////////////////////////////////
142
143
144 /////////////////////////////////////////////////////////////////////////////
145 // IUnknown for IContextMenu
146 /////////////////////////////////////////////////////////////////////////////
147 STDMETHODIMP CShellExt::XMenuExt::QueryInterface(REFIID riid, void** ppv)
148 {
149     METHOD_PROLOGUE(CShellExt, MenuExt);
150
151     return pThis->ExternalQueryInterface(&riid, ppv);
152 }
153
154 STDMETHODIMP_(ULONG) CShellExt::XMenuExt::AddRef(void)
155 {
156         return ++nCMRefCount;
157 }
158
159 STDMETHODIMP_(ULONG) CShellExt::XMenuExt::Release(void)
160 {
161         if (nCMRefCount > 0)
162                 nCMRefCount--;
163
164         return nCMRefCount;
165 }
166
167 /////////////////////////////////////////////////////////////////////////////
168 // IConextMenu Functions
169 /////////////////////////////////////////////////////////////////////////////
170 STDMETHODIMP CShellExt::XMenuExt::QueryContextMenu(HMENU hMenu,UINT indexMenu,
171     UINT idCmdFirst, UINT idCmdLast,UINT uFlags)
172 {
173     METHOD_PROLOGUE(CShellExt, MenuExt);
174
175         // Don't add any menu items if we're being asked to deal with this file as a shortcut.
176         if (uFlags & CMF_VERBSONLY)
177                 return MAKE_HRESULT(SEVERITY_SUCCESS, FACILITY_NULL, (USHORT)0);
178
179         // Check to see if there's already an AFS menu here; if so, remove it
180         int nItemsNow = GetMenuItemCount (hMenu);
181         CString strAfsItemText = GetMessageString(IDS_AFS_ITEM);
182         LPCTSTR pszAfsItemText = (LPCTSTR)strAfsItemText;
183         for (int iItem = 0; iItem < nItemsNow; iItem++) {
184                 TCHAR szItemText[256];
185                 if (!GetMenuString (hMenu, iItem, szItemText, 256, MF_BYPOSITION))
186                         continue;
187                 if (!lstrcmp (szItemText, pszAfsItemText)) {
188                         DeleteMenu (hMenu, iItem, MF_BYPOSITION);
189                         continue;
190                 }
191                 if ((!lstrcmp(szItemText,"&Delete"))&&(pThis->m_bIsSymlink)) {  /*this is a symlink - don't present a delete menu!*/
192                         DeleteMenu (hMenu, iItem, MF_BYPOSITION);
193                         continue;
194                 }
195                 if ((!lstrcmp(szItemText,"Cu&t"))&&(pThis->m_bIsSymlink)) {             /*same for cut*/
196                         DeleteMenu (hMenu, iItem, MF_BYPOSITION);
197                         continue;
198                 }
199         }
200         int indexShellMenu = 0;
201
202         // Create the AFS submenu using the allowed ID's.
203         HMENU hAfsMenu = CreatePopupMenu();
204         int indexAfsMenu = 0;
205
206         // The Authentication item has been removed from the AFS menu because
207         // there is now a tray icon to handle authentication.
208         //
209         //::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_AUTHENTICATION, GetMessageString(IDS_AUTHENTICATION_ITEM));
210         
211         // Only enable the ACL menu item if a single directory is selected
212         int nSingleDirOnly = MF_GRAYED;
213         if (pThis->m_bDirSelected && (pThis->m_astrFileNames.GetSize() == 1))
214                 nSingleDirOnly = MF_ENABLED;
215         ::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION | nSingleDirOnly, idCmdFirst + IDM_ACL_SET, GetMessageString(IDS_ACLS_ITEM));
216         
217         // Volume/Partition submenu of the AFS submenu
218         HMENU hVolPartMenu = CreatePopupMenu();
219         int indexVolPartMenu = 0;
220         ::InsertMenu(hVolPartMenu, indexVolPartMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_VOLUME_PROPERTIES, GetMessageString(IDS_VOL_PART_PROPS_ITEM));
221         ::InsertMenu(hVolPartMenu, indexVolPartMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_VOLUMEPARTITION_UPDATENAMEIDTABLE, GetMessageString(IDS_VOL_PART_REFRESH_ITEM));
222         ::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION | MF_POPUP, (UINT)hVolPartMenu, GetMessageString(IDS_VOL_PART_ITEM));
223
224         // Mount Point submenu of the AFS submenu
225         HMENU hMountPointMenu = CreatePopupMenu();
226         int indexMountPointMenu = 0;
227         ::InsertMenu(hMountPointMenu, indexMountPointMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_MOUNTPOINT_SHOW, GetMessageString(IDS_MP_SHOW_ITEM));
228         ::InsertMenu(hMountPointMenu, indexMountPointMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_MOUNTPOINT_REMOVE, GetMessageString(IDS_MP_REMOVE_ITEM));
229         ::InsertMenu(hMountPointMenu, indexMountPointMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_MOUNTPOINT_MAKE, GetMessageString(IDS_MP_MAKE_ITEM));
230         ::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION | MF_POPUP, (UINT)hMountPointMenu, GetMessageString(IDS_MOUNT_POINT_ITEM));
231
232         ::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_FLUSH, GetMessageString(IDS_FLUSH_FILE_DIR_ITEM));   
233         ::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_FLUSH_VOLUME, GetMessageString(IDS_FLUSH_VOLUME_ITEM));
234         ::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_SHOW_SERVER, GetMessageString(IDS_SHOW_FILE_SERVERS_ITEM));
235         ::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_SHOWCELL, GetMessageString(IDS_SHOW_CELL_ITEM));
236         ::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_SERVER_STATUS, GetMessageString(IDS_SHOW_SERVER_STATUS_ITEM));
237
238     HMENU hSymbolicMenu = CreatePopupMenu();
239         int indexSymbolicMenu = 0;
240     ::InsertMenu(hSymbolicMenu, indexSymbolicMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_SYMBOLICLINK_ADD, GetMessageString(IDS_SYMBOLICLINK_ADD));
241     // ::InsertMenu(hSymbolicMenu, indexSymbolicMenu, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_SYMBOLICLINK_EDIT, GetMessageString(IDS_SYMBOLICLINK_EDIT));
242         // ::EnableMenuItem(hSymbolicMenu,indexSymbolicMenu++,((pThis->m_bIsSymlink)?MF_ENABLED:MF_GRAYED)|MF_BYPOSITION);
243         ::InsertMenu(hSymbolicMenu, indexSymbolicMenu, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_SYMBOLICLINK_REMOVE, GetMessageString(IDS_SYMBOLICLINK_REMOVE));
244         ::EnableMenuItem(hSymbolicMenu,indexSymbolicMenu++,((pThis->m_bIsSymlink)?MF_ENABLED:MF_GRAYED)|MF_BYPOSITION);
245         ::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION | MF_POPUP, (UINT)hSymbolicMenu, GetMessageString(IDS_SYMBOLIC_LINK_ITEM));
246         
247         // The Submounts menu has been removed because the AFS tray icon
248         // and control panel now support mapping drives directly to an AFS
249         // path.
250         //
251         // HMENU hSubmountMenu = CreatePopupMenu();
252         // int indexSubmountMenu = 0;
253         // ::InsertMenu(hSubmountMenu, indexSubmountMenu++, MF_STRING | MF_BYPOSITION | nSingleDirOnly, idCmdFirst + IDM_SUBMOUNTS_CREATE, GetMessageString(IDS_SUBMOUNTS_CREATE_ITEM));
254         // ::InsertMenu(hSubmountMenu, indexSubmountMenu++, MF_STRING | MF_BYPOSITION, idCmdFirst + IDM_SUBMOUNTS_EDIT, GetMessageString(IDS_SUBMOUNTS_EDIT_ITEM));
255         // ::InsertMenu(hAfsMenu, indexAfsMenu++, MF_STRING | MF_BYPOSITION | MF_POPUP, (UINT)hSubmountMenu, GetMessageString(IDS_SUBMOUNTS_ITEM));
256
257         // Add a separator
258         ::InsertMenu (hMenu, indexMenu + indexShellMenu++, MF_STRING | MF_BYPOSITION | MF_SEPARATOR, 0, TEXT(""));
259
260         // Add the AFS submenu to the shell's menu
261         ::InsertMenu(hMenu, indexMenu + indexShellMenu++, MF_STRING | MF_BYPOSITION | MF_POPUP, (UINT)hAfsMenu, GetMessageString(IDS_AFS_ITEM));
262
263         // Add a separator after us
264         ::InsertMenu (hMenu, indexMenu + indexShellMenu++, MF_STRING | MF_BYPOSITION | MF_SEPARATOR, 0, TEXT(""));
265         
266     return MAKE_HRESULT(SEVERITY_SUCCESS, FACILITY_NULL, 
267                         (USHORT)indexAfsMenu + indexVolPartMenu + indexMountPointMenu + indexShellMenu + indexSymbolicMenu);
268 }
269
270 STDMETHODIMP CShellExt::XMenuExt::InvokeCommand(LPCMINVOKECOMMANDINFO lpici)
271 {
272     METHOD_PROLOGUE(CShellExt, MenuExt);
273
274     if (HIWORD(lpici->lpVerb ))
275         return E_FAIL;
276
277         AddRef();
278
279         CStringArray &files = pThis->m_astrFileNames;
280
281         switch (LOWORD(lpici->lpVerb))
282         {
283                 case IDM_AUTHENTICATION:        {
284                                                                                 CAuthDlg dlg;
285                                                                                 dlg.DoModal();
286                                                                                 break;
287                                                                         }
288                 
289                 case IDM_ACL_SET:                       { 
290                                                                                 CSetAfsAcl dlg;
291                                                                                 ASSERT(files.GetSize() == 1);
292                                                                                 dlg.SetDir(files[0]);
293                                                                                 dlg.DoModal();
294                                                                         }
295                                                                         break;
296                 
297                 case IDM_VOLUME_PROPERTIES:     {
298                                                                                 CVolumeInfo dlg;
299                                                                                 dlg.SetFiles(files);
300                                                                                 dlg.DoModal();
301                                                                         }
302                                                                         break;
303
304                 case IDM_VOLUMEPARTITION_UPDATENAMEIDTABLE:     CheckVolumes();
305                                                                                                         break;
306
307                 case IDM_MOUNTPOINT_SHOW:       ListMount(files);
308                                                                         break;
309
310                 case IDM_MOUNTPOINT_REMOVE:     {
311                                                                                 int nChoice = ShowMessageBox(IDS_REALLY_DEL_MOUNT_POINTS, MB_ICONQUESTION | MB_YESNO, IDS_REALLY_DEL_MOUNT_POINTS);
312                                                                                 if (nChoice == IDYES)
313                                                                                         RemoveMount(files);
314                                                                         }
315                                                                         break;
316                 
317                 case IDM_MOUNTPOINT_MAKE:       {
318                                                                                 CMakeMountPointDlg dlg;
319                                                                                 ASSERT(files.GetSize() == 1);
320                                                                                 dlg.SetDir(files[0]);
321                                                                                 dlg.DoModal();
322                                                                         }
323                                                                         break;
324
325
326                 case IDM_FLUSH:                         Flush(files);
327                                                                         break;
328                 
329                 case IDM_FLUSH_VOLUME:          FlushVolume(files);
330                                                                         break;
331
332                 case IDM_SHOW_SERVER:           WhereIs(files);
333                                                                         break;
334                 
335                 case IDM_SHOWCELL:                      WhichCell(files);
336                                                                         break;
337
338                 case IDM_SERVER_STATUS:         {
339                                                                                 CServerStatusDlg dlg;
340                                                                                 dlg.DoModal();
341                                                                         }
342                                                                         break;
343
344         /*
345                 case IDM_SUBMOUNTS_EDIT:        {
346                                                                                 CSubmountsDlg dlg;
347                                                                                 dlg.DoModal();
348                                                                         }
349                                                                         break;
350
351                 case IDM_SUBMOUNTS_CREATE:      {
352                                                                                 ASSERT(files.GetSize() == 1);
353                                                                                 CSubmountsDlg dlg;
354                                                                                 dlg.SetAddOnlyMode(files[0]);
355                                                                                 dlg.DoModal();
356                                                                         }
357                                                                         break;
358         */
359         case IDM_SYMBOLICLINK_REMOVE: {
360                 if (files.GetSize()>1)
361                         break;
362                 CString msg=files.GetAt(0);
363                 int i;
364                 if ((i=msg.ReverseFind('\\'))>0)
365                         msg=msg.Left(i+1);
366                 else if ((i=msg.ReverseFind(':'))>0)
367                         msg=msg.Left(i+1)+"\\";
368                 if (!SetCurrentDirectory(msg))
369                 {
370                         MessageBeep((UINT)-1);
371                         ShowMessageBox(IDS_UNABLE_TO_SET_CURRENT_DIRECTORY,MB_OK,IDS_UNABLE_TO_SET_CURRENT_DIRECTORY);
372                         break;
373                 }
374                 msg=files.GetAt(0);
375                 if ((i=msg.ReverseFind('\\'))>0||((i=msg.ReverseFind(':'))>0))
376                         msg=msg.Right(msg.GetLength()-i-1);
377                 int nChoice = ShowMessageBox(IDS_REALLY_REMOVE_SYMLINK, MB_ICONQUESTION | MB_YESNO, IDS_REALLY_REMOVE_SYMLINK,msg);
378                 if (nChoice == IDYES)
379                         RemoveSymlink(files.GetAt(0));
380         }
381                 break;
382
383         case IDM_SYMBOLICLINK_ADD: {
384                 CString msg=files.GetAt(0);
385                 int i;
386                 if ((i=msg.ReverseFind('\\'))>0)
387                         msg=msg.Left(i+1);
388                 else if ((i=msg.ReverseFind(':'))>0)
389                         msg=msg.Left(i+1)+"\\";
390                 CMakeSymbolicLinkDlg dlg;
391                 dlg.Setbase(msg);
392                 dlg.DoModal();
393         }
394                 break;
395                 
396         case IDM_REMOVE_SYMLINK:        {
397                 if (files.GetSize()>1)
398                         break;
399                 int nChoice = ShowMessageBox(IDS_REALLY_REMOVE_SYMLINK, MB_ICONQUESTION | MB_YESNO, IDS_REALLY_REMOVE_SYMLINK);
400                 if (nChoice == IDYES)
401                         RemoveSymlink(files.GetAt(0));
402         }
403                 break;
404         default:
405                 ASSERT(FALSE);
406                 Release();
407                 return E_INVALIDARG;
408         }
409
410         Release();
411
412     return NOERROR;
413 }
414
415 STDMETHODIMP CShellExt::XMenuExt::GetCommandString(UINT idCmd, UINT uType,
416     UINT* pwReserved, LPSTR pszName, UINT cchMax)
417 {
418         if (uType != GCS_HELPTEXT)
419                 return NOERROR;                 // ?????????????????????????????????????????????????
420
421         UINT nCmdStrID;
422
423     AfxSetResourceHandle(theApp.m_hInstance);
424
425     switch (idCmd)
426         {
427                 case IDM_AUTHENTICATION:        nCmdStrID = ID_AUTHENTICATE;
428                                                                         break;
429                 
430                 case IDM_ACL_SET:                       nCmdStrID = ID_ACL_SET;
431                                                                         break;
432                 
433                 case IDM_VOLUME_PROPERTIES:     nCmdStrID = ID_VOLUME_PROPERTIES;
434                                                                         break;
435
436                 case IDM_VOLUMEPARTITION_UPDATENAMEIDTABLE:     nCmdStrID = ID_VOLUMEPARTITION_UPDATENAMEIDTABLE;
437                                                                                                         break;
438
439                 case IDM_MOUNTPOINT_SHOW:       nCmdStrID = ID_MOUNTPOINT_SHOW;
440                                                                         break;
441
442                 case IDM_MOUNTPOINT_REMOVE:     nCmdStrID = ID_MOUNTPOINT_REMOVE;
443                                                                         break;
444                 
445                 case IDM_MOUNTPOINT_MAKE:       nCmdStrID = ID_MOUNTPOINT_MAKE;
446                                                                         break;
447
448                 case IDM_FLUSH:                         nCmdStrID = ID_FLUSH;
449                                                                         break;
450                 
451                 case IDM_FLUSH_VOLUME:          nCmdStrID = ID_VOLUME_FLUSH;
452                                                                         break;
453
454                 case IDM_SHOW_SERVER:           nCmdStrID = ID_WHEREIS;
455                                                                         break;
456                 
457                 case IDM_SHOWCELL:                      nCmdStrID = ID_SHOWCELL;
458                                                                         break;
459
460                 case IDM_SERVER_STATUS:         nCmdStrID = ID_SERVER_STATUS;
461                                                                         break;
462
463                 case IDM_SYMBOLICLINK_ADD:      nCmdStrID = ID_SYMBOLICLINK_ADD;
464                                                                         break;
465                 
466                 case IDM_SYMBOLICLINK_REMOVE:   nCmdStrID = ID_SYMBOLICLINK_REMOVE;
467                                                                         break;
468
469                 case IDM_REMOVE_SYMLINK:        nCmdStrID= ID_REMOVE_SYMLINK;
470                                                                         break;
471                 
472                 default:
473                         ASSERT(FALSE);
474                         Release();
475                     return E_INVALIDARG;
476         }
477
478     CString strMsg;
479     LoadString (strMsg, nCmdStrID);
480
481     strncpy(pszName, strMsg, cchMax);
482
483     return NOERROR;
484 }
485
486 /////////////////////////////////////////////////////////////////////////////
487 // IUnknown for IShellExtInit
488 /////////////////////////////////////////////////////////////////////////////
489 STDMETHODIMP CShellExt::XShellInit::QueryInterface(REFIID riid, void** ppv)
490 {
491     METHOD_PROLOGUE(CShellExt, ShellInit);
492
493     return pThis->ExternalQueryInterface(&riid, ppv);
494 }
495
496 STDMETHODIMP_(ULONG) CShellExt::XShellInit::AddRef(void)
497 {
498         return ++nSERefCount;
499 }
500
501 STDMETHODIMP_(ULONG) CShellExt::XShellInit::Release(void)
502 {
503         if (nSERefCount > 0)
504                 nSERefCount--;
505         
506         return nSERefCount;
507 }
508
509 /////////////////////////////////////////////////////////////////////////////
510 // IShellInit Functions
511 /////////////////////////////////////////////////////////////////////////////
512 STDMETHODIMP CShellExt::XShellInit::Initialize(LPCITEMIDLIST pidlFolder, IDataObject *pdobj, HKEY hkeyProgID)
513 {
514     METHOD_PROLOGUE(CShellExt, ShellInit);
515
516     HRESULT hres = E_FAIL;
517     FORMATETC fmte = {CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
518     STGMEDIUM medium;
519
520         // We must have a data object
521     if (pdobj == NULL)
522             return E_FAIL;
523
524     //  Use the given IDataObject to get a list of filenames (CF_HDROP)
525     hres = pdobj->GetData(&fmte, &medium);
526     if (FAILED(hres)) {
527             return E_FAIL;
528     }
529
530     int nNumFiles = DragQueryFile((HDROP)medium.hGlobal, 0xFFFFFFFF, NULL, 0);
531         if (nNumFiles == 0)
532                 hres = E_FAIL;
533         else {
534                 pThis->m_bDirSelected = FALSE;
535
536                 for (int ii = 0; ii < nNumFiles; ii++) {
537                         CString strFileName;
538
539                         // Get the size of the file name string
540                         int nNameLen = DragQueryFile((HDROP)medium.hGlobal, ii, 0, 0);
541
542                         // Make room for it in our string object
543                         LPTSTR pszFileNameBuf = strFileName.GetBuffer(nNameLen + 1);    // +1 for the terminating NULL
544                         ASSERT(pszFileNameBuf);
545                         
546                         // Get the file name
547                         DragQueryFile((HDROP)medium.hGlobal, ii, pszFileNameBuf, nNameLen + 1);
548                         
549                         strFileName.ReleaseBuffer();
550
551                         if (!IsPathInAfs(strFileName)) {
552                                 pThis->m_astrFileNames.RemoveAll();
553                                 break;
554                         } else {
555                                 pThis->m_bIsSymlink=IsSymlink(strFileName);
556                         }
557
558                         if (IsADir(strFileName))
559                                 pThis->m_bDirSelected = TRUE;
560
561                         pThis->m_astrFileNames.Add(strFileName);
562                 }
563
564                 if (pThis->m_astrFileNames.GetSize() > 0)
565                         hres = NOERROR;
566                 else
567                         hres = E_FAIL;
568     }
569  
570     //  Release the data
571     ReleaseStgMedium(&medium);
572
573     return hres;
574 }
575
576 STDMETHODIMP CShellExt::XIconExt::QueryInterface(REFIID riid, void** ppv)
577 {
578     METHOD_PROLOGUE(CShellExt, IconExt);
579     return pThis->ExternalQueryInterface(&riid, ppv);
580 }
581
582 STDMETHODIMP_(ULONG) CShellExt::XIconExt::AddRef(void)
583 {
584         return ++nICRefCount;
585 }
586
587 STDMETHODIMP_(ULONG) CShellExt::XIconExt::Release(void)
588 {
589         if (nICRefCount > 0)
590                 nICRefCount--;
591
592         return nICRefCount;
593 }
594
595
596 /////////////////////////////////////////////////////////////////////////////
597 // IIconHandler Functions
598 /////////////////////////////////////////////////////////////////////////////
599
600 STDMETHODIMP CShellExt::XIconExt::GetOverlayInfo(LPWSTR pwszIconFile
601         ,int cchMax,int* pIndex,DWORD* pdwFlags)
602 {
603         if(IsBadWritePtr(pIndex, sizeof(int)))
604                 return E_INVALIDARG;
605         if(IsBadWritePtr(pdwFlags, sizeof(DWORD)))
606                 return E_INVALIDARG;
607
608         HMODULE hModule=GetModuleHandle("shell32.dll");
609         TCHAR szModule[MAX_PATH];
610         DWORD z=GetModuleFileName(hModule,szModule,sizeof(szModule));
611         MultiByteToWideChar( CP_ACP,0,szModule,-1,pwszIconFile,cchMax); 
612         *pIndex = 30;
613         *pdwFlags = ISIOI_ICONFILE | ISIOI_ICONINDEX;
614         return S_OK;
615 }
616
617 STDMETHODIMP CShellExt::XIconExt::GetPriority(int* pPriority)
618 {
619         if(IsBadWritePtr(pPriority, sizeof(int)))
620            return E_INVALIDARG;
621         *pPriority = 0;
622         return S_OK;
623 }
624
625 STDMETHODIMP CShellExt::XIconExt::IsMemberOf(LPCWSTR pwszPath,DWORD dwAttrib)
626 {
627         TCHAR szPath[MAX_PATH];
628         WideCharToMultiByte( CP_ACP,0,pwszPath,-1,szPath,MAX_PATH,NULL,NULL);
629         if (IsSymlink(szPath))
630                 return S_OK;
631         return S_FALSE;
632 }
633
634 /*          TOOL TIP INFO IMPLIMENTION   */
635
636 STDMETHODIMP CShellExt::XToolTipExt::QueryInterface(REFIID riid, void** ppv)
637 {
638     METHOD_PROLOGUE(CShellExt, ToolTipExt);
639     return pThis->ExternalQueryInterface(&riid, ppv);
640 }
641
642 STDMETHODIMP_(ULONG) CShellExt::XToolTipExt::AddRef(void)
643 {
644         return ++nTPRefCount;
645 }
646
647 STDMETHODIMP_(ULONG) CShellExt::XToolTipExt::Release(void)
648 {
649         if (nTPRefCount> 0)
650                 nTPRefCount--;
651
652         return nTPRefCount;
653 }
654
655 STDMETHODIMP CShellExt::XToolTipExt::GetInfoTip(DWORD dwFlags, LPWSTR *ppwszTip)
656 {
657     METHOD_PROLOGUE(CShellExt, ToolTipExt);
658
659         if (!IsSymlink(pThis->m_szFile))
660         {
661                 ppwszTip=NULL;
662                 return S_OK;
663         }
664         USES_CONVERSION;
665         // dwFlags is currently unused.
666         *ppwszTip = (WCHAR*) (pThis->m_pAlloc)->Alloc((1+lstrlen(pThis->m_szFile))*sizeof(WCHAR));
667         if (*ppwszTip)
668         {
669                 wcscpy(*ppwszTip, (WCHAR*)T2OLE(pThis->m_szFile));
670         }
671
672         return S_OK;
673 }
674 STDMETHODIMP CShellExt::XToolTipExt::GetInfoFlags(LPDWORD pdwFlags)
675 {
676         return S_OK;
677 }
678
679 //////////                          IPersistFile
680 ///////                            PersistFileExt
681
682 STDMETHODIMP CShellExt::XPersistFileExt::QueryInterface(REFIID riid, void** ppv)
683 {
684     METHOD_PROLOGUE(CShellExt, PersistFileExt);
685     return pThis->ExternalQueryInterface(&riid, ppv);
686 }
687
688 STDMETHODIMP_(ULONG) CShellExt::XPersistFileExt::AddRef(void)
689 {
690         return ++nXPRefCount;
691 }
692
693 STDMETHODIMP_(ULONG) CShellExt::XPersistFileExt::Release(void)
694 {
695         if (nXPRefCount> 0)
696                 nXPRefCount--;
697
698         return nXPRefCount;
699 }
700
701 STDMETHODIMP    CShellExt::XPersistFileExt::Load(LPCOLESTR wszFile, DWORD dwMode)
702 {
703     METHOD_PROLOGUE(CShellExt, PersistFileExt);
704         USES_CONVERSION;
705         _tcscpy(pThis->m_szFile, OLE2T((WCHAR*)wszFile)); 
706         return S_OK;    
707 }
708
709 STDMETHODIMP CShellExt::XPersistFileExt::GetClassID(LPCLSID)
710
711         return E_NOTIMPL;       
712 }
713
714 STDMETHODIMP CShellExt::XPersistFileExt::IsDirty(VOID)
715
716         return E_NOTIMPL; 
717 }
718
719 STDMETHODIMP CShellExt::XPersistFileExt::Save(LPCOLESTR, BOOL)
720
721         return E_NOTIMPL; 
722 }
723
724 STDMETHODIMP CShellExt::XPersistFileExt::SaveCompleted(LPCOLESTR)
725
726         return E_NOTIMPL; 
727 }
728
729 STDMETHODIMP CShellExt::XPersistFileExt::GetCurFile(LPOLESTR FAR*)
730
731         return E_NOTIMPL; 
732 }