dlls/shell32/shlfileop.c

   1 /*
   2  * SHFileOperation
   3  *
   4  * Copyright 2000 Juergen Schmied
   5  * Copyright 2002 Andriy Palamarchuk
   6  * Copyright 2004 Dietrich Teickner (from Odin)
   7  * Copyright 2004 Rolf Kalbermatter
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include "config.h"
  25 #include "wine/port.h"
  26
  27 #include <stdarg.h>
  28 #include <string.h>
  29 #include <ctype.h>
  30 #include <assert.h>
  31
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "winreg.h"
  35 #include "shellapi.h"
  36 #include "wingdi.h"
  37 #include "winuser.h"
  38 #include "shlobj.h"
  39 #include "shresdef.h"
  40 #define NO_SHLWAPI_STREAM
  41 #include "shlwapi.h"
  42 #include "shell32_main.h"
  43 #include "undocshell.h"
  44 #include "wine/debug.h"
  45 #include "xdg.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  48
  49 #define IsAttrib(x, y)  ((INVALID_FILE_ATTRIBUTES != (x)) && ((x) & (y)))
  50 #define IsAttribFile(x) (!((x) & FILE_ATTRIBUTE_DIRECTORY))
  51 #define IsAttribDir(x)  IsAttrib(x, FILE_ATTRIBUTE_DIRECTORY)
  52 #define IsDotDir(x)     ((x[0] == '.') && ((x[1] == 0) || ((x[1] == '.') && (x[2] == 0))))
  53
  54 #define FO_MASK         0xF
  55
  56 static const WCHAR wWildcardFile[] = {'*',0};
  57 static const WCHAR wWildcardChars[] = {'*','?',0};
  58
  59 static DWORD SHNotifyCreateDirectoryA(LPCSTR path, LPSECURITY_ATTRIBUTES sec);
  60 static DWORD SHNotifyCreateDirectoryW(LPCWSTR path, LPSECURITY_ATTRIBUTES sec);
  61 static DWORD SHNotifyRemoveDirectoryA(LPCSTR path);
  62 static DWORD SHNotifyRemoveDirectoryW(LPCWSTR path);
  63 static DWORD SHNotifyDeleteFileA(LPCSTR path);
  64 static DWORD SHNotifyDeleteFileW(LPCWSTR path);
  65 static DWORD SHNotifyMoveFileW(LPCWSTR src, LPCWSTR dest);
  66 static DWORD SHNotifyCopyFileW(LPCWSTR src, LPCWSTR dest, BOOL bFailIfExists);
  67 static DWORD SHFindAttrW(LPCWSTR pName, BOOL fileOnly);
  68
  69 typedef struct
  70 {
  71     SHFILEOPSTRUCTW *req;
  72     DWORD dwYesToAllMask;
  73     BOOL bManyItems;
  74     BOOL bCancelled;
  75 } FILE_OPERATION;
  76
  77 /* Confirm dialogs with an optional "Yes To All" as used in file operations confirmations
  78  */
  79 static const WCHAR CONFIRM_MSG_PROP[] = {'W','I','N','E','_','C','O','N','F','I','R','M',0};
  80
  81 struct confirm_msg_info
  82 {
  83     LPWSTR lpszText;
  84     LPWSTR lpszCaption;
  85     HICON hIcon;
  86     BOOL bYesToAll;
  87 };
  88
  89 /* as some buttons may be hidden and the dialog height may change we may need
  90  * to move the controls */
  91 static void confirm_msg_move_button(HWND hDlg, INT iId, INT *xPos, INT yOffset, BOOL bShow)
  92 {
  93     HWND hButton = GetDlgItem(hDlg, iId);
  94     RECT r;
  95
  96     if (bShow) {
  97         POINT pt;
  98         int width;
  99
 100         GetWindowRect(hButton, &r);
 101         width = r.right - r.left;
 102         pt.x = r.left;
 103         pt.y = r.top;
 104         ScreenToClient(hDlg, &pt);
 105         MoveWindow(hButton, *xPos - width, pt.y - yOffset, width, r.bottom - r.top, FALSE);
 106         *xPos -= width + 5;
 107     }
 108     else
 109         ShowWindow(hButton, SW_HIDE);
 110 }
 111
 112 /* Note: we paint the text manually and don't use the static control to make
 113  * sure the text has the same height as the one computed in WM_INITDIALOG
 114  */
 115 static INT_PTR CALLBACK ConfirmMsgBox_Paint(HWND hDlg)
 116 {
 117     PAINTSTRUCT ps;
 118     HFONT hOldFont;
 119     RECT r;
 120     HDC hdc;
 121
 122     BeginPaint(hDlg, &ps);
 123     hdc = ps.hdc;
 124
 125     GetClientRect(GetDlgItem(hDlg, IDD_MESSAGE), &r);
 126     /* this will remap the rect to dialog coords */
 127     MapWindowPoints(GetDlgItem(hDlg, IDD_MESSAGE), hDlg, (LPPOINT)&r, 2);
 128     hOldFont = SelectObject(hdc, (HFONT)SendDlgItemMessageW(hDlg, IDD_MESSAGE, WM_GETFONT, 0, 0));
 129     DrawTextW(hdc, (LPWSTR)GetPropW(hDlg, CONFIRM_MSG_PROP), -1, &r, DT_NOPREFIX | DT_PATH_ELLIPSIS | DT_WORDBREAK);
 130     SelectObject(hdc, hOldFont);
 131     EndPaint(hDlg, &ps);
 132     return TRUE;
 133 }
 134
 135 static INT_PTR CALLBACK ConfirmMsgBox_Init(HWND hDlg, LPARAM lParam)
 136 {
 137     struct confirm_msg_info *info = (struct confirm_msg_info *)lParam;
 138     INT xPos, yOffset;
 139     int width, height;
 140     HFONT hOldFont;
 141     HDC hdc;
 142     RECT r;
 143
 144     SetWindowTextW(hDlg, info->lpszCaption);
 145     ShowWindow(GetDlgItem(hDlg, IDD_MESSAGE), SW_HIDE);
 146     SetPropW(hDlg, CONFIRM_MSG_PROP, (HANDLE)info->lpszText);
 147     SendDlgItemMessageW(hDlg, IDD_ICON, STM_SETICON, (WPARAM)info->hIcon, 0);
 148
 149     /* compute the text height and resize the dialog */
 150     GetClientRect(GetDlgItem(hDlg, IDD_MESSAGE), &r);
 151     hdc = GetDC(hDlg);
 152     yOffset = r.bottom;
 153     hOldFont = SelectObject(hdc, (HFONT)SendDlgItemMessageW(hDlg, IDD_MESSAGE, WM_GETFONT, 0, 0));
 154     DrawTextW(hdc, info->lpszText, -1, &r, DT_NOPREFIX | DT_PATH_ELLIPSIS | DT_WORDBREAK | DT_CALCRECT);
 155     SelectObject(hdc, hOldFont);
 156     yOffset -= r.bottom;
 157     yOffset = min(yOffset, 35);  /* don't make the dialog too small */
 158     ReleaseDC(hDlg, hdc);
 159
 160     GetClientRect(hDlg, &r);
 161     xPos = r.right - 7;
 162     GetWindowRect(hDlg, &r);
 163     width = r.right - r.left;
 164     height = r.bottom - r.top - yOffset;
 165     MoveWindow(hDlg, (GetSystemMetrics(SM_CXSCREEN) - width)/2,
 166         (GetSystemMetrics(SM_CYSCREEN) - height)/2, width, height, FALSE);
 167
 168     confirm_msg_move_button(hDlg, IDCANCEL,     &xPos, yOffset, info->bYesToAll);
 169     confirm_msg_move_button(hDlg, IDNO,         &xPos, yOffset, TRUE);
 170     confirm_msg_move_button(hDlg, IDD_YESTOALL, &xPos, yOffset, info->bYesToAll);
 171     confirm_msg_move_button(hDlg, IDYES,        &xPos, yOffset, TRUE);
 172     return TRUE;
 173 }
 174
 175 static INT_PTR CALLBACK ConfirmMsgBoxProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 176 {
 177     switch (uMsg)
 178     {
 179         case WM_INITDIALOG:
 180             return ConfirmMsgBox_Init(hDlg, lParam);
 181         case WM_PAINT:
 182             return ConfirmMsgBox_Paint(hDlg);
 183         case WM_COMMAND:
 184             EndDialog(hDlg, wParam);
 185             break;
 186         case WM_CLOSE:
 187             EndDialog(hDlg, IDCANCEL);
 188             break;
 189     }
 190     return FALSE;
 191 }
 192
 193 static int SHELL_ConfirmMsgBox(HWND hWnd, LPWSTR lpszText, LPWSTR lpszCaption, HICON hIcon, BOOL bYesToAll)
 194 {
 195     static const WCHAR wszTemplate[] = {'S','H','E','L','L','_','Y','E','S','T','O','A','L','L','_','M','S','G','B','O','X',0};
 196     struct confirm_msg_info info;
 197
 198     info.lpszText = lpszText;
 199     info.lpszCaption = lpszCaption;
 200     info.hIcon = hIcon;
 201     info.bYesToAll = bYesToAll;
 202     return DialogBoxParamW(shell32_hInstance, wszTemplate, hWnd, ConfirmMsgBoxProc, (LPARAM)&info);
 203 }
 204
 205 /* confirmation dialogs content */
 206 typedef struct
 207 {
 208         HINSTANCE hIconInstance;
 209         UINT icon_resource_id;
 210         UINT caption_resource_id, text_resource_id;
 211 } SHELL_ConfirmIDstruc;
 212
 213 static BOOL SHELL_ConfirmIDs(int nKindOfDialog, SHELL_ConfirmIDstruc *ids)
 214 {
 215         ids->hIconInstance = shell32_hInstance;
 216         switch (nKindOfDialog) {
 217           case ASK_DELETE_FILE:
 218             ids->icon_resource_id = IDI_SHELL_CONFIRM_DELETE;
 219             ids->caption_resource_id  = IDS_DELETEITEM_CAPTION;
 220             ids->text_resource_id  = IDS_DELETEITEM_TEXT;
 221             return TRUE;
 222           case ASK_DELETE_FOLDER:
 223             ids->icon_resource_id = IDI_SHELL_CONFIRM_DELETE;
 224             ids->caption_resource_id  = IDS_DELETEFOLDER_CAPTION;
 225             ids->text_resource_id  = IDS_DELETEITEM_TEXT;
 226             return TRUE;
 227           case ASK_DELETE_MULTIPLE_ITEM:
 228             ids->icon_resource_id = IDI_SHELL_CONFIRM_DELETE;
 229             ids->caption_resource_id  = IDS_DELETEITEM_CAPTION;
 230             ids->text_resource_id  = IDS_DELETEMULTIPLE_TEXT;
 231             return TRUE;
 232           case ASK_TRASH_FILE:
 233             ids->icon_resource_id = IDI_SHELL_TRASH_FILE;
 234             ids->caption_resource_id = IDS_DELETEITEM_CAPTION;
 235             ids->text_resource_id = IDS_TRASHITEM_TEXT;
 236             return TRUE;
 237           case ASK_TRASH_FOLDER:
 238             ids->icon_resource_id = IDI_SHELL_TRASH_FILE;
 239             ids->caption_resource_id = IDS_DELETEFOLDER_CAPTION;
 240             ids->text_resource_id = IDS_TRASHFOLDER_TEXT;
 241             return TRUE;
 242           case ASK_TRASH_MULTIPLE_ITEM:
 243             ids->icon_resource_id = IDI_SHELL_TRASH_FILE;
 244             ids->caption_resource_id = IDS_DELETEITEM_CAPTION;
 245             ids->text_resource_id = IDS_TRASHMULTIPLE_TEXT;
 246             return TRUE;
 247           case ASK_CANT_TRASH_ITEM:
 248             ids->icon_resource_id = IDI_SHELL_CONFIRM_DELETE;
 249             ids->caption_resource_id  = IDS_DELETEITEM_CAPTION;
 250             ids->text_resource_id  = IDS_CANTTRASH_TEXT;
 251             return TRUE;
 252           case ASK_DELETE_SELECTED:
 253             ids->icon_resource_id = IDI_SHELL_CONFIRM_DELETE;
 254             ids->caption_resource_id  = IDS_DELETEITEM_CAPTION;
 255             ids->text_resource_id  = IDS_DELETESELECTED_TEXT;
 256             return TRUE;
 257           case ASK_OVERWRITE_FILE:
 258             ids->hIconInstance = NULL;
 259             ids->icon_resource_id = IDI_WARNING;
 260             ids->caption_resource_id  = IDS_OVERWRITEFILE_CAPTION;
 261             ids->text_resource_id  = IDS_OVERWRITEFILE_TEXT;
 262             return TRUE;
 263           case ASK_OVERWRITE_FOLDER:
 264             ids->hIconInstance = NULL;
 265             ids->icon_resource_id = IDI_WARNING;
 266             ids->caption_resource_id  = IDS_OVERWRITEFILE_CAPTION;
 267             ids->text_resource_id  = IDS_OVERWRITEFOLDER_TEXT;
 268             return TRUE;
 269           default:
 270             FIXME(" Unhandled nKindOfDialog %d stub\n", nKindOfDialog);
 271         }
 272         return FALSE;
 273 }
 274
 275 static BOOL SHELL_ConfirmDialogW(HWND hWnd, int nKindOfDialog, LPCWSTR szDir, FILE_OPERATION *op)
 276 {
 277         WCHAR szCaption[255], szText[255], szBuffer[MAX_PATH + 256];
 278         SHELL_ConfirmIDstruc ids;
 279         DWORD_PTR args[1];
 280         HICON hIcon;
 281         int ret;
 282
 283         assert(nKindOfDialog >= 0 && nKindOfDialog < 32);
 284         if (op && (op->dwYesToAllMask & (1 << nKindOfDialog)))
 285             return TRUE;
 286
 287         if (!SHELL_ConfirmIDs(nKindOfDialog, &ids)) return FALSE;
 288
 289         LoadStringW(shell32_hInstance, ids.caption_resource_id, szCaption, sizeof(szCaption)/sizeof(WCHAR));
 290         LoadStringW(shell32_hInstance, ids.text_resource_id, szText, sizeof(szText)/sizeof(WCHAR));
 291
 292         args[0] = (DWORD_PTR)szDir;
 293         FormatMessageW(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ARGUMENT_ARRAY,
 294                        szText, 0, 0, szBuffer, sizeof(szBuffer), (va_list*)args);
 295         hIcon = LoadIconW(ids.hIconInstance, (LPWSTR)MAKEINTRESOURCE(ids.icon_resource_id));
 296
 297         ret = SHELL_ConfirmMsgBox(hWnd, szBuffer, szCaption, hIcon, op && op->bManyItems);
 298         if (op) {
 299             if (ret == IDD_YESTOALL) {
 300                 op->dwYesToAllMask |= (1 << nKindOfDialog);
 301                 ret = IDYES;
 302             }
 303             if (ret == IDCANCEL)
 304                 op->bCancelled = TRUE;
 305             if (ret != IDYES)
 306                 op->req->fAnyOperationsAborted = TRUE;
 307         }
 308         return ret == IDYES;
 309 }
 310
 311 BOOL SHELL_ConfirmYesNoW(HWND hWnd, int nKindOfDialog, LPCWSTR szDir)
 312 {
 313     return SHELL_ConfirmDialogW(hWnd, nKindOfDialog, szDir, NULL);
 314 }
 315
 316 static DWORD SHELL32_AnsiToUnicodeBuf(LPCSTR aPath, LPWSTR *wPath, DWORD minChars)
 317 {
 318         DWORD len = MultiByteToWideChar(CP_ACP, 0, aPath, -1, NULL, 0);
 319
 320         if (len < minChars)
 321           len = minChars;
 322
 323         *wPath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 324         if (*wPath)
 325         {
 326           MultiByteToWideChar(CP_ACP, 0, aPath, -1, *wPath, len);
 327           return NO_ERROR;
 328         }
 329         return E_OUTOFMEMORY;
 330 }
 331
 332 static void SHELL32_FreeUnicodeBuf(LPWSTR wPath)
 333 {
 334         HeapFree(GetProcessHeap(), 0, wPath);
 335 }
 336
 337 HRESULT WINAPI SHIsFileAvailableOffline(LPCWSTR path, LPDWORD status)
 338 {
 339     FIXME("(%s, %p) stub\n", debugstr_w(path), status);
 340     return E_FAIL;
 341 }
 342
 343 /**************************************************************************
 344  * SHELL_DeleteDirectory()  [internal]
 345  *
 346  * Asks for confirmation when bShowUI is true and deletes the directory and
 347  * all its subdirectories and files if necessary.
 348  */
 349 BOOL SHELL_DeleteDirectoryW(HWND hwnd, LPCWSTR pszDir, BOOL bShowUI)
 350 {
 351         BOOL    ret = TRUE;
 352         HANDLE  hFind;
 353         WIN32_FIND_DATAW wfd;
 354         WCHAR   szTemp[MAX_PATH];
 355
 356         /* Make sure the directory exists before eventually prompting the user */
 357         PathCombineW(szTemp, pszDir, wWildcardFile);
 358         hFind = FindFirstFileW(szTemp, &wfd);
 359         if (hFind == INVALID_HANDLE_VALUE)
 360           return FALSE;
 361
 362         if (!bShowUI || (ret = SHELL_ConfirmDialogW(hwnd, ASK_DELETE_FOLDER, pszDir, NULL)))
 363         {
 364           do
 365           {
 366             if (IsDotDir(wfd.cFileName))
 367               continue;
 368             PathCombineW(szTemp, pszDir, wfd.cFileName);
 369             if (FILE_ATTRIBUTE_DIRECTORY & wfd.dwFileAttributes)
 370               ret = SHELL_DeleteDirectoryW(hwnd, szTemp, FALSE);
 371             else
 372               ret = (SHNotifyDeleteFileW(szTemp) == ERROR_SUCCESS);
 373           } while (ret && FindNextFileW(hFind, &wfd));
 374         }
 375         FindClose(hFind);
 376         if (ret)
 377           ret = (SHNotifyRemoveDirectoryW(pszDir) == ERROR_SUCCESS);
 378         return ret;
 379 }
 380
 381 /**************************************************************************
 382  * Win32CreateDirectory      [SHELL32.93]
 383  *
 384  * Creates a directory. Also triggers a change notify if one exists.
 385  *
 386  * PARAMS
 387  *  path       [I]   path to directory to create
 388  *
 389  * RETURNS
 390  *  TRUE if successful, FALSE otherwise
 391  *
 392  * NOTES
 393  *  Verified on Win98 / IE 5 (SHELL32 4.72, March 1999 build) to be ANSI.
 394  *  This is Unicode on NT/2000
 395  */
 396 static DWORD SHNotifyCreateDirectoryA(LPCSTR path, LPSECURITY_ATTRIBUTES sec)
 397 {
 398         LPWSTR wPath;
 399         DWORD retCode;
 400
 401         TRACE("(%s, %p)\n", debugstr_a(path), sec);
 402
 403         retCode = SHELL32_AnsiToUnicodeBuf(path, &wPath, 0);
 404         if (!retCode)
 405         {
 406           retCode = SHNotifyCreateDirectoryW(wPath, sec);
 407           SHELL32_FreeUnicodeBuf(wPath);
 408         }
 409         return retCode;
 410 }
 411
 412 /**********************************************************************/
 413
 414 static DWORD SHNotifyCreateDirectoryW(LPCWSTR path, LPSECURITY_ATTRIBUTES sec)
 415 {
 416         TRACE("(%s, %p)\n", debugstr_w(path), sec);
 417
 418         if (CreateDirectoryW(path, sec))
 419         {
 420           SHChangeNotify(SHCNE_MKDIR, SHCNF_PATHW, path, NULL);
 421           return ERROR_SUCCESS;
 422         }
 423         return GetLastError();
 424 }
 425
 426 /**********************************************************************/
 427
 428 BOOL WINAPI Win32CreateDirectoryAW(LPCVOID path, LPSECURITY_ATTRIBUTES sec)
 429 {
 430         if (SHELL_OsIsUnicode())
 431           return (SHNotifyCreateDirectoryW(path, sec) == ERROR_SUCCESS);
 432         return (SHNotifyCreateDirectoryA(path, sec) == ERROR_SUCCESS);
 433 }
 434
 435 /************************************************************************
 436  * Win32RemoveDirectory      [SHELL32.94]
 437  *
 438  * Deletes a directory. Also triggers a change notify if one exists.
 439  *
 440  * PARAMS
 441  *  path       [I]   path to directory to delete
 442  *
 443  * RETURNS
 444  *  TRUE if successful, FALSE otherwise
 445  *
 446  * NOTES
 447  *  Verified on Win98 / IE 5 (SHELL32 4.72, March 1999 build) to be ANSI.
 448  *  This is Unicode on NT/2000
 449  */
 450 static DWORD SHNotifyRemoveDirectoryA(LPCSTR path)
 451 {
 452         LPWSTR wPath;
 453         DWORD retCode;
 454
 455         TRACE("(%s)\n", debugstr_a(path));
 456
 457         retCode = SHELL32_AnsiToUnicodeBuf(path, &wPath, 0);
 458         if (!retCode)
 459         {
 460           retCode = SHNotifyRemoveDirectoryW(wPath);
 461           SHELL32_FreeUnicodeBuf(wPath);
 462         }
 463         return retCode;
 464 }
 465
 466 /***********************************************************************/
 467
 468 static DWORD SHNotifyRemoveDirectoryW(LPCWSTR path)
 469 {
 470         BOOL ret;
 471         TRACE("(%s)\n", debugstr_w(path));
 472
 473         ret = RemoveDirectoryW(path);
 474         if (!ret)
 475         {
 476           /* Directory may be write protected */
 477           DWORD dwAttr = GetFileAttributesW(path);
 478           if (IsAttrib(dwAttr, FILE_ATTRIBUTE_READONLY))
 479             if (SetFileAttributesW(path, dwAttr & ~FILE_ATTRIBUTE_READONLY))
 480               ret = RemoveDirectoryW(path);
 481         }
 482         if (ret)
 483         {
 484           SHChangeNotify(SHCNE_RMDIR, SHCNF_PATHW, path, NULL);
 485           return ERROR_SUCCESS;
 486         }
 487         return GetLastError();
 488 }
 489
 490 /***********************************************************************/
 491
 492 BOOL WINAPI Win32RemoveDirectoryAW(LPCVOID path)
 493 {
 494         if (SHELL_OsIsUnicode())
 495           return (SHNotifyRemoveDirectoryW(path) == ERROR_SUCCESS);
 496         return (SHNotifyRemoveDirectoryA(path) == ERROR_SUCCESS);
 497 }
 498
 499 /************************************************************************
 500  * Win32DeleteFile           [SHELL32.164]
 501  *
 502  * Deletes a file. Also triggers a change notify if one exists.
 503  *
 504  * PARAMS
 505  *  path       [I]   path to file to delete
 506  *
 507  * RETURNS
 508  *  TRUE if successful, FALSE otherwise
 509  *
 510  * NOTES
 511  *  Verified on Win98 / IE 5 (SHELL32 4.72, March 1999 build) to be ANSI.
 512  *  This is Unicode on NT/2000
 513  */
 514 static DWORD SHNotifyDeleteFileA(LPCSTR path)
 515 {
 516         LPWSTR wPath;
 517         DWORD retCode;
 518
 519         TRACE("(%s)\n", debugstr_a(path));
 520
 521         retCode = SHELL32_AnsiToUnicodeBuf(path, &wPath, 0);
 522         if (!retCode)
 523         {
 524           retCode = SHNotifyDeleteFileW(wPath);
 525           SHELL32_FreeUnicodeBuf(wPath);
 526         }
 527         return retCode;
 528 }
 529
 530 /***********************************************************************/
 531
 532 static DWORD SHNotifyDeleteFileW(LPCWSTR path)
 533 {
 534         BOOL ret;
 535
 536         TRACE("(%s)\n", debugstr_w(path));
 537
 538         ret = DeleteFileW(path);
 539         if (!ret)
 540         {
 541           /* File may be write protected or a system file */
 542           DWORD dwAttr = GetFileAttributesW(path);
 543           if (IsAttrib(dwAttr, FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM))
 544             if (SetFileAttributesW(path, dwAttr & ~(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM)))
 545               ret = DeleteFileW(path);
 546         }
 547         if (ret)
 548         {
 549           SHChangeNotify(SHCNE_DELETE, SHCNF_PATHW, path, NULL);
 550           return ERROR_SUCCESS;
 551         }
 552         return GetLastError();
 553 }
 554
 555 /***********************************************************************/
 556
 557 DWORD WINAPI Win32DeleteFileAW(LPCVOID path)
 558 {
 559         if (SHELL_OsIsUnicode())
 560           return (SHNotifyDeleteFileW(path) == ERROR_SUCCESS);
 561         return (SHNotifyDeleteFileA(path) == ERROR_SUCCESS);
 562 }
 563
 564 /************************************************************************
 565  * SHNotifyMoveFile          [internal]
 566  *
 567  * Moves a file. Also triggers a change notify if one exists.
 568  *
 569  * PARAMS
 570  *  src        [I]   path to source file to move
 571  *  dest       [I]   path to target file to move to
 572  *
 573  * RETURNS
 574  *  ERORR_SUCCESS if successful
 575  */
 576 static DWORD SHNotifyMoveFileW(LPCWSTR src, LPCWSTR dest)
 577 {
 578         BOOL ret;
 579
 580         TRACE("(%s %s)\n", debugstr_w(src), debugstr_w(dest));
 581
 582         ret = MoveFileExW(src, dest, MOVEFILE_REPLACE_EXISTING);
 583
 584         /* MOVEFILE_REPLACE_EXISTING fails with dirs, so try MoveFile */
 585         if (!ret)
 586             ret = MoveFileW(src, dest);
 587
 588         if (!ret)
 589         {
 590           DWORD dwAttr;
 591
 592           dwAttr = SHFindAttrW(dest, FALSE);
 593           if (INVALID_FILE_ATTRIBUTES == dwAttr)
 594           {
 595             /* Source file may be write protected or a system file */
 596             dwAttr = GetFileAttributesW(src);
 597             if (IsAttrib(dwAttr, FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM))
 598               if (SetFileAttributesW(src, dwAttr & ~(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM)))
 599                 ret = MoveFileW(src, dest);
 600           }
 601         }
 602         if (ret)
 603         {
 604           SHChangeNotify(SHCNE_RENAMEITEM, SHCNF_PATHW, src, dest);
 605           return ERROR_SUCCESS;
 606         }
 607         return GetLastError();
 608 }
 609
 610 /************************************************************************
 611  * SHNotifyCopyFile          [internal]
 612  *
 613  * Copies a file. Also triggers a change notify if one exists.
 614  *
 615  * PARAMS
 616  *  src           [I]   path to source file to move
 617  *  dest          [I]   path to target file to move to
 618  *  bFailIfExists [I]   if TRUE, the target file will not be overwritten if
 619  *                      a file with this name already exists
 620  *
 621  * RETURNS
 622  *  ERROR_SUCCESS if successful
 623  */
 624 static DWORD SHNotifyCopyFileW(LPCWSTR src, LPCWSTR dest, BOOL bFailIfExists)
 625 {
 626         BOOL ret;
 627
 628         TRACE("(%s %s %s)\n", debugstr_w(src), debugstr_w(dest), bFailIfExists ? "failIfExists" : "");
 629
 630         ret = CopyFileW(src, dest, bFailIfExists);
 631         if (ret)
 632         {
 633           SHChangeNotify(SHCNE_CREATE, SHCNF_PATHW, dest, NULL);
 634           return ERROR_SUCCESS;
 635         }
 636
 637         return GetLastError();
 638 }
 639
 640 /*************************************************************************
 641  * SHCreateDirectory         [SHELL32.165]
 642  *
 643  * This function creates a file system folder whose fully qualified path is
 644  * given by path. If one or more of the intermediate folders do not exist,
 645  * they will be created as well.
 646  *
 647  * PARAMS
 648  *  hWnd       [I]
 649  *  path       [I]   path of directory to create
 650  *
 651  * RETURNS
 652  *  ERRROR_SUCCESS or one of the following values:
 653  *  ERROR_BAD_PATHNAME if the path is relative
 654  *  ERROR_FILE_EXISTS when a file with that name exists
 655  *  ERROR_PATH_NOT_FOUND can't find the path, probably invalid
 656  *  ERROR_INVLID_NAME if the path contains invalid chars
 657  *  ERROR_ALREADY_EXISTS when the directory already exists
 658  *  ERROR_FILENAME_EXCED_RANGE if the filename was to long to process
 659  *
 660  * NOTES
 661  *  exported by ordinal
 662  *  Win9x exports ANSI
 663  *  WinNT/2000 exports Unicode
 664  */
 665 DWORD WINAPI SHCreateDirectory(HWND hWnd, LPCVOID path)
 666 {
 667         if (SHELL_OsIsUnicode())
 668           return SHCreateDirectoryExW(hWnd, path, NULL);
 669         return SHCreateDirectoryExA(hWnd, path, NULL);
 670 }
 671
 672 /*************************************************************************
 673  * SHCreateDirectoryExA      [SHELL32.@]
 674  *
 675  * This function creates a file system folder whose fully qualified path is
 676  * given by path. If one or more of the intermediate folders do not exist,
 677  * they will be created as well.
 678  *
 679  * PARAMS
 680  *  hWnd       [I]
 681  *  path       [I]   path of directory to create
 682  *  sec        [I]   security attributes to use or NULL
 683  *
 684  * RETURNS
 685  *  ERRROR_SUCCESS or one of the following values:
 686  *  ERROR_BAD_PATHNAME or ERROR_PATH_NOT_FOUND if the path is relative
 687  *  ERROR_INVLID_NAME if the path contains invalid chars
 688  *  ERROR_FILE_EXISTS when a file with that name exists
 689  *  ERROR_ALREADY_EXISTS when the directory already exists
 690  *  ERROR_FILENAME_EXCED_RANGE if the filename was to long to process
 691  *
 692  *  FIXME: Not implemented yet;
 693  *  SHCreateDirectoryEx also verifies that the files in the directory will be visible
 694  *  if the path is a network path to deal with network drivers which might have a limited
 695  *  but unknown maximum path length. If not:
 696  *
 697  *  If hWnd is set to a valid window handle, a message box is displayed warning
 698  *  the user that the files may not be accessible. If the user chooses not to
 699  *  proceed, the function returns ERROR_CANCELLED.
 700  *
 701  *  If hWnd is set to NULL, no user interface is displayed and the function
 702  *  returns ERROR_CANCELLED.
 703  */
 704 int WINAPI SHCreateDirectoryExA(HWND hWnd, LPCSTR path, LPSECURITY_ATTRIBUTES sec)
 705 {
 706         LPWSTR wPath;
 707         DWORD retCode;
 708
 709         TRACE("(%s, %p)\n", debugstr_a(path), sec);
 710
 711         retCode = SHELL32_AnsiToUnicodeBuf(path, &wPath, 0);
 712         if (!retCode)
 713         {
 714           retCode = SHCreateDirectoryExW(hWnd, wPath, sec);
 715           SHELL32_FreeUnicodeBuf(wPath);
 716         }
 717         return retCode;
 718 }
 719
 720 /*************************************************************************
 721  * SHCreateDirectoryExW      [SHELL32.@]
 722  *
 723  * See SHCreateDirectoryExA.
 724  */
 725 int WINAPI SHCreateDirectoryExW(HWND hWnd, LPCWSTR path, LPSECURITY_ATTRIBUTES sec)
 726 {
 727         int ret = ERROR_BAD_PATHNAME;
 728         TRACE("(%p, %s, %p)\n", hWnd, debugstr_w(path), sec);
 729
 730         if (PathIsRelativeW(path))
 731         {
 732           SetLastError(ret);
 733         }
 734         else
 735         {
 736           ret = SHNotifyCreateDirectoryW(path, sec);
 737           /* Refuse to work on certain error codes before trying to create directories recursively */
 738           if (ret != ERROR_SUCCESS &&
 739               ret != ERROR_FILE_EXISTS &&
 740               ret != ERROR_ALREADY_EXISTS &&
 741               ret != ERROR_FILENAME_EXCED_RANGE)
 742           {
 743             WCHAR *pEnd, *pSlash, szTemp[MAX_PATH + 1];  /* extra for PathAddBackslash() */
 744
 745             lstrcpynW(szTemp, path, MAX_PATH);
 746             pEnd = PathAddBackslashW(szTemp);
 747             pSlash = szTemp + 3;
 748
 749             while (*pSlash)
 750             {
 751               while (*pSlash && *pSlash != '\\') pSlash++;
 752               if (*pSlash)
 753               {
 754                 *pSlash = 0;    /* terminate path at separator */
 755
 756                 ret = SHNotifyCreateDirectoryW(szTemp, pSlash + 1 == pEnd ? sec : NULL);
 757               }
 758               *pSlash++ = '\\'; /* put the separator back */
 759             }
 760           }
 761
 762           if (ret && hWnd && (ERROR_CANCELLED != ret))
 763           {
 764             /* We failed and should show a dialog box */
 765             FIXME("Show system error message, creating path %s, failed with error %d\n", debugstr_w(path), ret);
 766             ret = ERROR_CANCELLED; /* Error has been already presented to user (not really yet!) */
 767           }
 768         }
 769         return ret;
 770 }
 771
 772 /*************************************************************************
 773  * SHFindAttrW      [internal]
 774  *
 775  * Get the Attributes for a file or directory. The difference to GetAttributes()
 776  * is that this function will also work for paths containing wildcard characters
 777  * in its filename.
 778
 779  * PARAMS
 780  *  path       [I]   path of directory or file to check
 781  *  fileOnly   [I]   TRUE if only files should be found
 782  *
 783  * RETURNS
 784  *  INVALID_FILE_ATTRIBUTES if the path does not exist, the actual attributes of
 785  *  the first file or directory found otherwise
 786  */
 787 static DWORD SHFindAttrW(LPCWSTR pName, BOOL fileOnly)
 788 {
 789         WIN32_FIND_DATAW wfd;
 790         BOOL b_FileMask = fileOnly && (NULL != StrPBrkW(pName, wWildcardChars));
 791         DWORD dwAttr = INVALID_FILE_ATTRIBUTES;
 792         HANDLE hFind = FindFirstFileW(pName, &wfd);
 793
 794         TRACE("%s %d\n", debugstr_w(pName), fileOnly);
 795         if (INVALID_HANDLE_VALUE != hFind)
 796         {
 797           do
 798           {
 799             if (b_FileMask && IsAttribDir(wfd.dwFileAttributes))
 800                continue;
 801             dwAttr = wfd.dwFileAttributes;
 802             break;
 803           }
 804           while (FindNextFileW(hFind, &wfd));
 805           FindClose(hFind);
 806         }
 807         return dwAttr;
 808 }
 809
 810 /*************************************************************************
 811  *
 812  * SHNameTranslate HelperFunction for SHFileOperationA
 813  *
 814  * Translates a list of 0 terminated ASCII strings into Unicode. If *wString
 815  * is NULL, only the necessary size of the string is determined and returned,
 816  * otherwise the ASCII strings are copied into it and the buffer is increased
 817  * to point to the location after the final 0 termination char.
 818  */
 819 static DWORD SHNameTranslate(LPWSTR* wString, LPCWSTR* pWToFrom, BOOL more)
 820 {
 821         DWORD size = 0, aSize = 0;
 822         LPCSTR aString = (LPCSTR)*pWToFrom;
 823
 824         if (aString)
 825         {
 826           do
 827           {
 828             size = lstrlenA(aString) + 1;
 829             aSize += size;
 830             aString += size;
 831           } while ((size != 1) && more);
 832           /* The two sizes might be different in the case of multibyte chars */
 833           size = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)*pWToFrom, aSize, *wString, 0);
 834           if (*wString) /* only in the second loop */
 835           {
 836             MultiByteToWideChar(CP_ACP, 0, (LPCSTR)*pWToFrom, aSize, *wString, size);
 837             *pWToFrom = *wString;
 838             *wString += size;
 839           }
 840         }
 841         return size;
 842 }
 843 /*************************************************************************
 844  * SHFileOperationA          [SHELL32.@]
 845  *
 846  * Function to copy, move, delete and create one or more files with optional
 847  * user prompts.
 848  *
 849  * PARAMS
 850  *  lpFileOp   [I/O] pointer to a structure containing all the necessary information
 851  *
 852  * RETURNS
 853  *  Success: ERROR_SUCCESS.
 854  *  Failure: ERROR_CANCELLED.
 855  *
 856  * NOTES
 857  *  exported by name
 858  */
 859 int WINAPI SHFileOperationA(LPSHFILEOPSTRUCTA lpFileOp)
 860 {
 861         SHFILEOPSTRUCTW nFileOp = *((LPSHFILEOPSTRUCTW)lpFileOp);
 862         int retCode = 0;
 863         DWORD size;
 864         LPWSTR ForFree = NULL, /* we change wString in SHNameTranslate and can't use it for freeing */
 865                wString = NULL; /* we change this in SHNameTranslate */
 866
 867         TRACE("\n");
 868         if (FO_DELETE == (nFileOp.wFunc & FO_MASK))
 869           nFileOp.pTo = NULL; /* we need a NULL or a valid pointer for translation */
 870         if (!(nFileOp.fFlags & FOF_SIMPLEPROGRESS))
 871           nFileOp.lpszProgressTitle = NULL; /* we need a NULL or a valid pointer for translation */
 872         while (1) /* every loop calculate size, second translate also, if we have storage for this */
 873         {
 874           size = SHNameTranslate(&wString, &nFileOp.lpszProgressTitle, FALSE); /* no loop */
 875           size += SHNameTranslate(&wString, &nFileOp.pFrom, TRUE); /* internal loop */
 876           size += SHNameTranslate(&wString, &nFileOp.pTo, TRUE); /* internal loop */
 877
 878           if (ForFree)
 879           {
 880             retCode = SHFileOperationW(&nFileOp);
 881             HeapFree(GetProcessHeap(), 0, ForFree); /* we cannot use wString, it was changed */
 882             break;
 883           }
 884           else
 885           {
 886             wString = ForFree = HeapAlloc(GetProcessHeap(), 0, size * sizeof(WCHAR));
 887             if (ForFree) continue;
 888             retCode = ERROR_OUTOFMEMORY;
 889             nFileOp.fAnyOperationsAborted = TRUE;
 890             SetLastError(retCode);
 891             return retCode;
 892           }
 893         }
 894
 895         lpFileOp->hNameMappings = nFileOp.hNameMappings;
 896         lpFileOp->fAnyOperationsAborted = nFileOp.fAnyOperationsAborted;
 897         return retCode;
 898 }
 899
 900 #define ERROR_SHELL_INTERNAL_FILE_NOT_FOUND 1026
 901
 902 typedef struct
 903 {
 904     DWORD attributes;
 905     LPWSTR szDirectory;
 906     LPWSTR szFilename;
 907     LPWSTR szFullPath;
 908     BOOL bFromWildcard;
 909     BOOL bFromRelative;
 910     BOOL bExists;
 911 } FILE_ENTRY;
 912
 913 typedef struct
 914 {
 915     FILE_ENTRY *feFiles;
 916     DWORD num_alloc;
 917     DWORD dwNumFiles;
 918     BOOL bAnyFromWildcard;
 919     BOOL bAnyDirectories;
 920     BOOL bAnyDontExist;
 921 } FILE_LIST;
 922
 923
 924 static inline void grow_list(FILE_LIST *list)
 925 {
 926     FILE_ENTRY *new = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, list->feFiles,
 927                                   list->num_alloc * 2 * sizeof(*new) );
 928     list->feFiles = new;
 929     list->num_alloc *= 2;
 930 }
 931
 932 /* adds a file to the FILE_ENTRY struct
 933  */
 934 static void add_file_to_entry(FILE_ENTRY *feFile, LPCWSTR szFile)
 935 {
 936     DWORD dwLen = lstrlenW(szFile) + 1;
 937     LPCWSTR ptr;
 938
 939     feFile->szFullPath = HeapAlloc(GetProcessHeap(), 0, dwLen * sizeof(WCHAR));
 940     lstrcpyW(feFile->szFullPath, szFile);
 941
 942     ptr = StrRChrW(szFile, NULL, '\\');
 943     if (ptr)
 944     {
 945         dwLen = ptr - szFile + 1;
 946         feFile->szDirectory = HeapAlloc(GetProcessHeap(), 0, dwLen * sizeof(WCHAR));
 947         lstrcpynW(feFile->szDirectory, szFile, dwLen);
 948
 949         dwLen = lstrlenW(feFile->szFullPath) - dwLen + 1;
 950         feFile->szFilename = HeapAlloc(GetProcessHeap(), 0, dwLen * sizeof(WCHAR));
 951         lstrcpyW(feFile->szFilename, ptr + 1); /* skip over backslash */
 952     }
 953     feFile->bFromWildcard = FALSE;
 954 }
 955
 956 static LPWSTR wildcard_to_file(LPCWSTR szWildCard, LPCWSTR szFileName)
 957 {
 958     LPCWSTR ptr;
 959     LPWSTR szFullPath;
 960     DWORD dwDirLen, dwFullLen;
 961
 962     ptr = StrRChrW(szWildCard, NULL, '\\');
 963     dwDirLen = ptr - szWildCard + 1;
 964
 965     dwFullLen = dwDirLen + lstrlenW(szFileName) + 1;
 966     szFullPath = HeapAlloc(GetProcessHeap(), 0, dwFullLen * sizeof(WCHAR));
 967
 968     lstrcpynW(szFullPath, szWildCard, dwDirLen + 1);
 969     lstrcatW(szFullPath, szFileName);
 970
 971     return szFullPath;
 972 }
 973
 974 static void parse_wildcard_files(FILE_LIST *flList, LPCWSTR szFile, LPDWORD pdwListIndex)
 975 {
 976     WIN32_FIND_DATAW wfd;
 977     HANDLE hFile = FindFirstFileW(szFile, &wfd);
 978     FILE_ENTRY *file;
 979     LPWSTR szFullPath;
 980     BOOL res;
 981
 982     if (hFile == INVALID_HANDLE_VALUE) return;
 983
 984     for (res = TRUE; res; res = FindNextFileW(hFile, &wfd))
 985     {
 986         if (IsDotDir(wfd.cFileName)) continue;
 987         if (*pdwListIndex >= flList->num_alloc) grow_list( flList );
 988         szFullPath = wildcard_to_file(szFile, wfd.cFileName);
 989         file = &flList->feFiles[(*pdwListIndex)++];
 990         add_file_to_entry(file, szFullPath);
 991         file->bFromWildcard = TRUE;
 992         file->attributes = wfd.dwFileAttributes;
 993         if (IsAttribDir(file->attributes)) flList->bAnyDirectories = TRUE;
 994         HeapFree(GetProcessHeap(), 0, szFullPath);
 995     }
 996
 997     FindClose(hFile);
 998 }
 999
1000 /* takes the null-separated file list and fills out the FILE_LIST */
1001 static HRESULT parse_file_list(FILE_LIST *flList, LPCWSTR szFiles)
1002 {
1003     LPCWSTR ptr = szFiles;
1004     WCHAR szCurFile[MAX_PATH];
1005     DWORD i = 0, dwDirLen;
1006
1007     if (!szFiles)
1008         return ERROR_INVALID_PARAMETER;
1009
1010     flList->bAnyFromWildcard = FALSE;
1011     flList->bAnyDirectories = FALSE;
1012     flList->bAnyDontExist = FALSE;
1013     flList->num_alloc = 32;
1014     flList->dwNumFiles = 0;
1015
1016     /* empty list */
1017     if (!szFiles[0])
1018         return ERROR_ACCESS_DENIED;
1019
1020     flList->feFiles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1021                                 flList->num_alloc * sizeof(FILE_ENTRY));
1022
1023     while (*ptr)
1024     {
1025         if (i >= flList->num_alloc) grow_list( flList );
1026
1027         /* change relative to absolute path */
1028         if (PathIsRelativeW(ptr))
1029         {
1030             dwDirLen = GetCurrentDirectoryW(MAX_PATH, szCurFile) + 1;
1031             PathCombineW(szCurFile, szCurFile, ptr);
1032             flList->feFiles[i].bFromRelative = TRUE;
1033         }
1034         else
1035         {
1036             lstrcpyW(szCurFile, ptr);
1037             flList->feFiles[i].bFromRelative = FALSE;
1038         }
1039
1040         /* parse wildcard files if they are in the filename */
1041         if (StrPBrkW(szCurFile, wWildcardChars))
1042         {
1043             parse_wildcard_files(flList, szCurFile, &i);
1044             flList->bAnyFromWildcard = TRUE;
1045             i--;
1046         }
1047         else
1048         {
1049             FILE_ENTRY *file = &flList->feFiles[i];
1050             add_file_to_entry(file, szCurFile);
1051             file->attributes = GetFileAttributesW( file->szFullPath );
1052             file->bExists = (file->attributes != INVALID_FILE_ATTRIBUTES);
1053             if (!file->bExists) flList->bAnyDontExist = TRUE;
1054             if (IsAttribDir(file->attributes)) flList->bAnyDirectories = TRUE;
1055         }
1056
1057         /* advance to the next string */
1058         ptr += lstrlenW(ptr) + 1;
1059         i++;
1060     }
1061     flList->dwNumFiles = i;
1062
1063     return S_OK;
1064 }
1065
1066 /* free the FILE_LIST */
1067 static void destroy_file_list(FILE_LIST *flList)
1068 {
1069     DWORD i;
1070
1071     if (!flList || !flList->feFiles)
1072         return;
1073
1074     for (i = 0; i < flList->dwNumFiles; i++)
1075     {
1076         HeapFree(GetProcessHeap(), 0, flList->feFiles[i].szDirectory);
1077         HeapFree(GetProcessHeap(), 0, flList->feFiles[i].szFilename);
1078         HeapFree(GetProcessHeap(), 0, flList->feFiles[i].szFullPath);
1079     }
1080
1081     HeapFree(GetProcessHeap(), 0, flList->feFiles);
1082 }
1083
1084 static void copy_dir_to_dir(FILE_OPERATION *op, const FILE_ENTRY *feFrom, LPCWSTR szDestPath)
1085 {
1086     WCHAR szFrom[MAX_PATH], szTo[MAX_PATH];
1087     SHFILEOPSTRUCTW fileOp;
1088
1089     static const WCHAR wildCardFiles[] = {'*','.','*',0};
1090
1091     if (IsDotDir(feFrom->szFilename))
1092         return;
1093
1094     if (PathFileExistsW(szDestPath))
1095         PathCombineW(szTo, szDestPath, feFrom->szFilename);
1096     else
1097         lstrcpyW(szTo, szDestPath);
1098
1099     if (!(op->req->fFlags & FOF_NOCONFIRMATION) && PathFileExistsW(szTo)) {
1100         if (!SHELL_ConfirmDialogW(op->req->hwnd, ASK_OVERWRITE_FOLDER, feFrom->szFilename, op))
1101         {
1102             /* Vista returns an ERROR_CANCELLED even if user pressed "No" */
1103             if (!op->bManyItems)
1104                 op->bCancelled = TRUE;
1105             return;
1106         }
1107     }
1108
1109     szTo[lstrlenW(szTo) + 1] = '\0';
1110     SHNotifyCreateDirectoryW(szTo, NULL);
1111
1112     PathCombineW(szFrom, feFrom->szFullPath, wildCardFiles);
1113     szFrom[lstrlenW(szFrom) + 1] = '\0';
1114
1115     memcpy(&fileOp, op->req, sizeof(fileOp));
1116     fileOp.pFrom = szFrom;
1117     fileOp.pTo = szTo;
1118     fileOp.fFlags &= ~FOF_MULTIDESTFILES; /* we know we're copying to one dir */
1119
1120     /* Don't ask the user about overwriting files when he accepted to overwrite the
1121        folder. FIXME: this is not exactly what Windows does - e.g. there would be
1122        an additional confirmation for a nested folder */
1123     fileOp.fFlags |= FOF_NOCONFIRMATION;
1124
1125     SHFileOperationW(&fileOp);
1126 }
1127
1128 static BOOL copy_file_to_file(FILE_OPERATION *op, const WCHAR *szFrom, const WCHAR *szTo)
1129 {
1130     if (!(op->req->fFlags & FOF_NOCONFIRMATION) && PathFileExistsW(szTo))
1131     {
1132         if (!SHELL_ConfirmDialogW(op->req->hwnd, ASK_OVERWRITE_FILE, PathFindFileNameW(szTo), op))
1133             return 0;
1134     }
1135
1136     return SHNotifyCopyFileW(szFrom, szTo, FALSE) == 0;
1137 }
1138
1139 /* copy a file or directory to another directory */
1140 static void copy_to_dir(FILE_OPERATION *op, const FILE_ENTRY *feFrom, const FILE_ENTRY *feTo)
1141 {
1142     if (!PathFileExistsW(feTo->szFullPath))
1143         SHNotifyCreateDirectoryW(feTo->szFullPath, NULL);
1144
1145     if (IsAttribFile(feFrom->attributes))
1146     {
1147         WCHAR szDestPath[MAX_PATH];
1148
1149         PathCombineW(szDestPath, feTo->szFullPath, feFrom->szFilename);
1150         copy_file_to_file(op, feFrom->szFullPath, szDestPath);
1151     }
1152     else if (!(op->req->fFlags & FOF_FILESONLY && feFrom->bFromWildcard))
1153         copy_dir_to_dir(op, feFrom, feTo->szFullPath);
1154 }
1155
1156 static void create_dest_dirs(LPCWSTR szDestDir)
1157 {
1158     WCHAR dir[MAX_PATH];
1159     LPCWSTR ptr = StrChrW(szDestDir, '\\');
1160
1161     /* make sure all directories up to last one are created */
1162     while (ptr && (ptr = StrChrW(ptr + 1, '\\')))
1163     {
1164         lstrcpynW(dir, szDestDir, ptr - szDestDir + 1);
1165
1166         if (!PathFileExistsW(dir))
1167             SHNotifyCreateDirectoryW(dir, NULL);
1168     }
1169
1170     /* create last directory */
1171     if (!PathFileExistsW(szDestDir))
1172         SHNotifyCreateDirectoryW(szDestDir, NULL);
1173 }
1174
1175 /* the FO_COPY operation */
1176 static HRESULT copy_files(FILE_OPERATION *op, const FILE_LIST *flFrom, const FILE_LIST *flTo)
1177 {
1178     DWORD i;
1179     const FILE_ENTRY *entryToCopy;
1180     const FILE_ENTRY *fileDest = &flTo->feFiles[0];
1181     BOOL bCancelIfAnyDirectories = FALSE;
1182
1183     if (flFrom->bAnyDontExist)
1184         return ERROR_SHELL_INTERNAL_FILE_NOT_FOUND;
1185
1186     if (op->req->fFlags & FOF_MULTIDESTFILES && flFrom->bAnyFromWildcard)
1187         return ERROR_CANCELLED;
1188
1189     if (!(op->req->fFlags & FOF_MULTIDESTFILES) && flTo->dwNumFiles != 1)
1190         return ERROR_CANCELLED;
1191
1192     if (op->req->fFlags & FOF_MULTIDESTFILES && flFrom->dwNumFiles != 1 &&
1193         flFrom->dwNumFiles != flTo->dwNumFiles)
1194     {
1195         return ERROR_CANCELLED;
1196     }
1197
1198     if (flFrom->dwNumFiles > 1 && flTo->dwNumFiles == 1 &&
1199         !PathFileExistsW(flTo->feFiles[0].szFullPath) &&
1200         IsAttribFile(fileDest->attributes))
1201     {
1202         bCancelIfAnyDirectories = TRUE;
1203     }
1204
1205     if (flFrom->dwNumFiles > 1 && flTo->dwNumFiles == 1 && fileDest->bFromRelative &&
1206         !PathFileExistsW(fileDest->szFullPath))
1207     {
1208         op->req->fAnyOperationsAborted = TRUE;
1209         return ERROR_CANCELLED;
1210     }
1211
1212     if (!(op->req->fFlags & FOF_MULTIDESTFILES) && flFrom->dwNumFiles != 1 &&
1213         PathFileExistsW(fileDest->szFullPath) &&
1214         IsAttribFile(fileDest->attributes))
1215     {
1216         return ERROR_CANCELLED;
1217     }
1218
1219     for (i = 0; i < flFrom->dwNumFiles; i++)
1220     {
1221         entryToCopy = &flFrom->feFiles[i];
1222
1223         if (op->req->fFlags & FOF_MULTIDESTFILES)
1224             fileDest = &flTo->feFiles[i];
1225
1226         if (IsAttribDir(entryToCopy->attributes) &&
1227             !lstrcmpiW(entryToCopy->szFullPath, fileDest->szDirectory))
1228         {
1229             return ERROR_SUCCESS;
1230         }
1231
1232         if (IsAttribDir(entryToCopy->attributes) && bCancelIfAnyDirectories)
1233             return ERROR_CANCELLED;
1234
1235         create_dest_dirs(fileDest->szDirectory);
1236
1237         if (!lstrcmpiW(entryToCopy->szFullPath, fileDest->szFullPath))
1238         {
1239             if (IsAttribFile(entryToCopy->attributes))
1240                 return ERROR_NO_MORE_SEARCH_HANDLES;
1241             else
1242                 return ERROR_SUCCESS;
1243         }
1244
1245         if ((flFrom->dwNumFiles > 1 && flTo->dwNumFiles == 1) ||
1246             (flFrom->dwNumFiles == 1 && IsAttribDir(fileDest->attributes)))
1247         {
1248             copy_to_dir(op, entryToCopy, fileDest);
1249         }
1250         else if (IsAttribDir(entryToCopy->attributes))
1251         {
1252             copy_dir_to_dir(op, entryToCopy, fileDest->szFullPath);
1253         }
1254         else
1255         {
1256             if (!copy_file_to_file(op, entryToCopy->szFullPath, fileDest->szFullPath))
1257             {
1258                 op->req->fAnyOperationsAborted = TRUE;
1259                 return ERROR_CANCELLED;
1260             }
1261         }
1262
1263         /* Vista return code. XP would return e.g. ERROR_FILE_NOT_FOUND, ERROR_ALREADY_EXISTS */
1264         if (op->bCancelled)
1265             return ERROR_CANCELLED;
1266     }
1267
1268     /* Vista return code. On XP if the used pressed "No" for the last item,
1269      * ERROR_ARENA_TRASHED would be returned */
1270     return ERROR_SUCCESS;
1271 }
1272
1273 static BOOL confirm_delete_list(HWND hWnd, DWORD fFlags, BOOL fTrash, const FILE_LIST *flFrom)
1274 {
1275     if (flFrom->dwNumFiles > 1)
1276     {
1277         WCHAR tmp[8];
1278         const WCHAR format[] = {'%','d',0};
1279
1280         wnsprintfW(tmp, sizeof(tmp)/sizeof(tmp[0]), format, flFrom->dwNumFiles);
1281         return SHELL_ConfirmDialogW(hWnd, (fTrash?ASK_TRASH_MULTIPLE_ITEM:ASK_DELETE_MULTIPLE_ITEM), tmp, NULL);
1282     }
1283     else
1284     {
1285         const FILE_ENTRY *fileEntry = &flFrom->feFiles[0];
1286
1287         if (IsAttribFile(fileEntry->attributes))
1288             return SHELL_ConfirmDialogW(hWnd, (fTrash?ASK_TRASH_FILE:ASK_DELETE_FILE), fileEntry->szFullPath, NULL);
1289         else if (!(fFlags & FOF_FILESONLY && fileEntry->bFromWildcard))
1290             return SHELL_ConfirmDialogW(hWnd, (fTrash?ASK_TRASH_FOLDER:ASK_DELETE_FOLDER), fileEntry->szFullPath, NULL);
1291     }
1292     return TRUE;
1293 }
1294
1295 /* the FO_DELETE operation */
1296 static HRESULT delete_files(LPSHFILEOPSTRUCTW lpFileOp, const FILE_LIST *flFrom)
1297 {
1298     const FILE_ENTRY *fileEntry;
1299     DWORD i;
1300     BOOL bPathExists;
1301     BOOL bTrash;
1302
1303     if (!flFrom->dwNumFiles)
1304         return ERROR_SUCCESS;
1305
1306     /* Windows also checks only the first item */
1307     bTrash = (lpFileOp->fFlags & FOF_ALLOWUNDO)
1308         && TRASH_CanTrashFile(flFrom->feFiles[0].szFullPath);
1309
1310     if (!(lpFileOp->fFlags & FOF_NOCONFIRMATION) || (!bTrash && lpFileOp->fFlags & FOF_WANTNUKEWARNING))
1311         if (!confirm_delete_list(lpFileOp->hwnd, lpFileOp->fFlags, bTrash, flFrom))
1312         {
1313             lpFileOp->fAnyOperationsAborted = TRUE;
1314             return 0;
1315         }
1316
1317     for (i = 0; i < flFrom->dwNumFiles; i++)
1318     {
1319         bPathExists = TRUE;
1320         fileEntry = &flFrom->feFiles[i];
1321
1322         if (!IsAttribFile(fileEntry->attributes) &&
1323             (lpFileOp->fFlags & FOF_FILESONLY && fileEntry->bFromWildcard))
1324             continue;
1325
1326         if (bTrash)
1327         {
1328             BOOL bDelete;
1329             if (TRASH_TrashFile(fileEntry->szFullPath))
1330                 continue;
1331
1332             /* Note: Windows silently deletes the file in such a situation, we show a dialog */
1333             if (!(lpFileOp->fFlags & FOF_NOCONFIRMATION) || (lpFileOp->fFlags & FOF_WANTNUKEWARNING))
1334                 bDelete = SHELL_ConfirmDialogW(lpFileOp->hwnd, ASK_CANT_TRASH_ITEM, fileEntry->szFullPath, NULL);
1335             else
1336                 bDelete = TRUE;
1337
1338             if (!bDelete)
1339             {
1340                 lpFileOp->fAnyOperationsAborted = TRUE;
1341                 break;
1342             }
1343         }
1344
1345         /* delete the file or directory */
1346         if (IsAttribFile(fileEntry->attributes))
1347             bPathExists = DeleteFileW(fileEntry->szFullPath);
1348         else
1349             bPathExists = SHELL_DeleteDirectoryW(lpFileOp->hwnd, fileEntry->szFullPath, FALSE);
1350
1351         if (!bPathExists)
1352             return ERROR_PATH_NOT_FOUND;
1353     }
1354
1355     return ERROR_SUCCESS;
1356 }
1357
1358 static void move_dir_to_dir(LPSHFILEOPSTRUCTW lpFileOp, const FILE_ENTRY *feFrom, LPCWSTR szDestPath)
1359 {
1360     WCHAR szFrom[MAX_PATH], szTo[MAX_PATH];
1361     SHFILEOPSTRUCTW fileOp;
1362
1363     static const WCHAR wildCardFiles[] = {'*','.','*',0};
1364
1365     if (IsDotDir(feFrom->szFilename))
1366         return;
1367
1368     SHNotifyCreateDirectoryW(szDestPath, NULL);
1369
1370     PathCombineW(szFrom, feFrom->szFullPath, wildCardFiles);
1371     szFrom[lstrlenW(szFrom) + 1] = '\0';
1372
1373     lstrcpyW(szTo, szDestPath);
1374     szTo[lstrlenW(szDestPath) + 1] = '\0';
1375
1376     memcpy(&fileOp, lpFileOp, sizeof(fileOp));
1377     fileOp.pFrom = szFrom;
1378     fileOp.pTo = szTo;
1379
1380     SHFileOperationW(&fileOp);
1381 }
1382
1383 /* moves a file or directory to another directory */
1384 static void move_to_dir(LPSHFILEOPSTRUCTW lpFileOp, const FILE_ENTRY *feFrom, const FILE_ENTRY *feTo)
1385 {
1386     WCHAR szDestPath[MAX_PATH];
1387
1388     PathCombineW(szDestPath, feTo->szFullPath, feFrom->szFilename);
1389
1390     if (IsAttribFile(feFrom->attributes))
1391         SHNotifyMoveFileW(feFrom->szFullPath, szDestPath);
1392     else if (!(lpFileOp->fFlags & FOF_FILESONLY && feFrom->bFromWildcard))
1393         move_dir_to_dir(lpFileOp, feFrom, szDestPath);
1394 }
1395
1396 /* the FO_MOVE operation */
1397 static HRESULT move_files(LPSHFILEOPSTRUCTW lpFileOp, const FILE_LIST *flFrom, const FILE_LIST *flTo)
1398 {
1399     DWORD i;
1400     const FILE_ENTRY *entryToMove;
1401     const FILE_ENTRY *fileDest;
1402
1403     if (!flFrom->dwNumFiles || !flTo->dwNumFiles)
1404         return ERROR_CANCELLED;
1405
1406     if (!(lpFileOp->fFlags & FOF_MULTIDESTFILES) &&
1407         flTo->dwNumFiles > 1 && flFrom->dwNumFiles > 1)
1408     {
1409         return ERROR_CANCELLED;
1410     }
1411
1412     if (!(lpFileOp->fFlags & FOF_MULTIDESTFILES) &&
1413         !flFrom->bAnyDirectories &&
1414         flFrom->dwNumFiles > flTo->dwNumFiles)
1415     {
1416         return ERROR_CANCELLED;
1417     }
1418
1419     if (!PathFileExistsW(flTo->feFiles[0].szDirectory))
1420         return ERROR_CANCELLED;
1421
1422     if ((lpFileOp->fFlags & FOF_MULTIDESTFILES) &&
1423         flFrom->dwNumFiles != flTo->dwNumFiles)
1424     {
1425         return ERROR_CANCELLED;
1426     }
1427
1428     fileDest = &flTo->feFiles[0];
1429     for (i = 0; i < flFrom->dwNumFiles; i++)
1430     {
1431         entryToMove = &flFrom->feFiles[i];
1432
1433         if (lpFileOp->fFlags & FOF_MULTIDESTFILES)
1434             fileDest = &flTo->feFiles[i];
1435
1436         if (!PathFileExistsW(fileDest->szDirectory))
1437             return ERROR_CANCELLED;
1438
1439         if (fileDest->bExists && IsAttribDir(fileDest->attributes))
1440             move_to_dir(lpFileOp, entryToMove, fileDest);
1441         else
1442             SHNotifyMoveFileW(entryToMove->szFullPath, fileDest->szFullPath);
1443     }
1444
1445     return ERROR_SUCCESS;
1446 }
1447
1448 /* the FO_RENAME files */
1449 static HRESULT rename_files(LPSHFILEOPSTRUCTW lpFileOp, const FILE_LIST *flFrom, const FILE_LIST *flTo)
1450 {
1451     const FILE_ENTRY *feFrom;
1452     const FILE_ENTRY *feTo;
1453
1454     if (flFrom->dwNumFiles != 1)
1455         return ERROR_GEN_FAILURE;
1456
1457     if (flTo->dwNumFiles != 1)
1458         return ERROR_CANCELLED;
1459
1460     feFrom = &flFrom->feFiles[0];
1461     feTo= &flTo->feFiles[0];
1462
1463     /* fail if destination doesn't exist */
1464     if (!feFrom->bExists)
1465         return ERROR_SHELL_INTERNAL_FILE_NOT_FOUND;
1466
1467     /* fail if destination already exists */
1468     if (feTo->bExists)
1469         return ERROR_ALREADY_EXISTS;
1470
1471     return SHNotifyMoveFileW(feFrom->szFullPath, feTo->szFullPath);
1472 }
1473
1474 /* alert the user if an unsupported flag is used */
1475 static void check_flags(FILEOP_FLAGS fFlags)
1476 {
1477     WORD wUnsupportedFlags = FOF_NO_CONNECTED_ELEMENTS |
1478         FOF_NOCOPYSECURITYATTRIBS | FOF_NORECURSEREPARSE |
1479         FOF_RENAMEONCOLLISION | FOF_WANTMAPPINGHANDLE;
1480
1481     if (fFlags & wUnsupportedFlags)
1482         FIXME("Unsupported flags: %04x\n", fFlags);
1483 }
1484
1485 /*************************************************************************
1486  * SHFileOperationW          [SHELL32.@]
1487  *
1488  * See SHFileOperationA
1489  */
1490 int WINAPI SHFileOperationW(LPSHFILEOPSTRUCTW lpFileOp)
1491 {
1492     FILE_OPERATION op;
1493     FILE_LIST flFrom, flTo;
1494     int ret = 0;
1495
1496     if (!lpFileOp)
1497         return ERROR_INVALID_PARAMETER;
1498
1499     check_flags(lpFileOp->fFlags);
1500
1501     ZeroMemory(&flFrom, sizeof(FILE_LIST));
1502     ZeroMemory(&flTo, sizeof(FILE_LIST));
1503
1504     if ((ret = parse_file_list(&flFrom, lpFileOp->pFrom)))
1505         return ret;
1506
1507     if (lpFileOp->wFunc != FO_DELETE)
1508         parse_file_list(&flTo, lpFileOp->pTo);
1509
1510     ZeroMemory(&op, sizeof(op));
1511     op.req = lpFileOp;
1512     op.bManyItems = (flFrom.dwNumFiles > 1);
1513
1514     switch (lpFileOp->wFunc)
1515     {
1516         case FO_COPY:
1517             ret = copy_files(&op, &flFrom, &flTo);
1518             break;
1519         case FO_DELETE:
1520             ret = delete_files(lpFileOp, &flFrom);
1521             break;
1522         case FO_MOVE:
1523             ret = move_files(lpFileOp, &flFrom, &flTo);
1524             break;
1525         case FO_RENAME:
1526             ret = rename_files(lpFileOp, &flFrom, &flTo);
1527             break;
1528         default:
1529             ret = ERROR_INVALID_PARAMETER;
1530             break;
1531     }
1532
1533     destroy_file_list(&flFrom);
1534
1535     if (lpFileOp->wFunc != FO_DELETE)
1536         destroy_file_list(&flTo);
1537
1538     if (ret == ERROR_CANCELLED)
1539         lpFileOp->fAnyOperationsAborted = TRUE;
1540
1541     return ret;
1542 }
1543
1544 #define SHDSA_GetItemCount(hdsa) (*(int*)(hdsa))
1545
1546 /*************************************************************************
1547  * SHFreeNameMappings      [shell32.246]
1548  *
1549  * Free the mapping handle returned by SHFileoperation if FOF_WANTSMAPPINGHANDLE
1550  * was specified.
1551  *
1552  * PARAMS
1553  *  hNameMapping [I] handle to the name mappings used during renaming of files
1554  *
1555  * RETURNS
1556  *  Nothing
1557  */
1558 void WINAPI SHFreeNameMappings(HANDLE hNameMapping)
1559 {
1560         if (hNameMapping)
1561         {
1562           int i = SHDSA_GetItemCount((HDSA)hNameMapping) - 1;
1563
1564           for (; i>= 0; i--)
1565           {
1566             LPSHNAMEMAPPINGW lp = DSA_GetItemPtr((HDSA)hNameMapping, i);
1567
1568             SHFree(lp->pszOldPath);
1569             SHFree(lp->pszNewPath);
1570           }
1571           DSA_Destroy((HDSA)hNameMapping);
1572         }
1573 }
1574
1575 /*************************************************************************
1576  * SheGetDirA [SHELL32.@]
1577  *
1578  * drive = 0: returns the current directory path
1579  * drive > 0: returns the current directory path of the specified drive
1580  *            drive=1 -> A:  drive=2 -> B:  ...
1581  * returns 0 if successful
1582 */
1583 DWORD WINAPI SheGetDirA(DWORD drive, LPSTR buffer)
1584 {
1585     WCHAR org_path[MAX_PATH];
1586     DWORD ret;
1587     char drv_path[3];
1588
1589     /* change current directory to the specified drive */
1590     if (drive) {
1591         strcpy(drv_path, "A:");
1592         drv_path[0] += (char)drive-1;
1593
1594         GetCurrentDirectoryW(MAX_PATH, org_path);
1595
1596         SetCurrentDirectoryA(drv_path);
1597     }
1598
1599     /* query current directory path of the specified drive */
1600     ret = GetCurrentDirectoryA(MAX_PATH, buffer);
1601
1602     /* back to the original drive */
1603     if (drive)
1604         SetCurrentDirectoryW(org_path);
1605
1606     if (!ret)
1607         return GetLastError();
1608
1609     return 0;
1610 }
1611
1612 /*************************************************************************
1613  * SheGetDirW [SHELL32.@]
1614  *
1615  * drive = 0: returns the current directory path
1616  * drive > 0: returns the current directory path of the specified drive
1617  *            drive=1 -> A:  drive=2 -> B:  ...
1618  * returns 0 if successful
1619  */
1620 DWORD WINAPI SheGetDirW(DWORD drive, LPWSTR buffer)
1621 {
1622     WCHAR org_path[MAX_PATH];
1623     DWORD ret;
1624     char drv_path[3];
1625
1626     /* change current directory to the specified drive */
1627     if (drive) {
1628         strcpy(drv_path, "A:");
1629         drv_path[0] += (char)drive-1;
1630
1631         GetCurrentDirectoryW(MAX_PATH, org_path);
1632
1633         SetCurrentDirectoryA(drv_path);
1634     }
1635
1636     /* query current directory path of the specified drive */
1637     ret = GetCurrentDirectoryW(MAX_PATH, buffer);
1638
1639     /* back to the original drive */
1640     if (drive)
1641         SetCurrentDirectoryW(org_path);
1642
1643     if (!ret)
1644         return GetLastError();
1645
1646     return 0;
1647 }
1648
1649 /*************************************************************************
1650  * SheChangeDirA [SHELL32.@]
1651  *
1652  * changes the current directory to the specified path
1653  * and returns 0 if successful
1654  */
1655 DWORD WINAPI SheChangeDirA(LPSTR path)
1656 {
1657     if (SetCurrentDirectoryA(path))
1658         return 0;
1659     else
1660         return GetLastError();
1661 }
1662
1663 /*************************************************************************
1664  * SheChangeDirW [SHELL32.@]
1665  *
1666  * changes the current directory to the specified path
1667  * and returns 0 if successful
1668  */
1669 DWORD WINAPI SheChangeDirW(LPWSTR path)
1670 {
1671     if (SetCurrentDirectoryW(path))
1672         return 0;
1673     else
1674         return GetLastError();
1675 }
1676
1677 /*************************************************************************
1678  * IsNetDrive                   [SHELL32.66]
1679  */
1680 BOOL WINAPI IsNetDrive(DWORD drive)
1681 {
1682         char root[4];
1683         strcpy(root, "A:\\");
1684         root[0] += (char)drive;
1685         return (GetDriveTypeA(root) == DRIVE_REMOTE);
1686 }
1687
1688
1689 /*************************************************************************
1690  * RealDriveType                [SHELL32.524]
1691  */
1692 INT WINAPI RealDriveType(INT drive, BOOL bQueryNet)
1693 {
1694     char root[] = "A:\\";
1695     root[0] += (char)drive;
1696     return GetDriveTypeA(root);
1697 }
1698
1699 /***********************************************************************
1700  *              SHPathPrepareForWriteA (SHELL32.@)
1701  */
1702 HRESULT WINAPI SHPathPrepareForWriteA(HWND hwnd, IUnknown *modless, LPCSTR path, DWORD flags)
1703 {
1704     WCHAR wpath[MAX_PATH];
1705     MultiByteToWideChar( CP_ACP, 0, path, -1, wpath, MAX_PATH);
1706     return SHPathPrepareForWriteW(hwnd, modless, wpath, flags);
1707 }
1708
1709 /***********************************************************************
1710  *              SHPathPrepareForWriteW (SHELL32.@)
1711  */
1712 HRESULT WINAPI SHPathPrepareForWriteW(HWND hwnd, IUnknown *modless, LPCWSTR path, DWORD flags)
1713 {
1714     HRESULT res;
1715     DWORD err;
1716     LPCWSTR realpath;
1717     int len;
1718     WCHAR* last_slash;
1719     WCHAR* temppath=NULL;
1720
1721     TRACE("%p %p %s 0x%80x\n", hwnd, modless, debugstr_w(path), flags);
1722
1723     if (flags & ~(SHPPFW_DIRCREATE|SHPPFW_ASKDIRCREATE|SHPPFW_IGNOREFILENAME))
1724         FIXME("unimplemented flags 0x%08x\n", flags);
1725
1726     /* cut off filename if necessary */
1727     if (flags & SHPPFW_IGNOREFILENAME)
1728     {
1729         last_slash = StrRChrW(path, NULL, '\\');
1730         if (last_slash == NULL)
1731             len = 1;
1732         else
1733             len = last_slash - path + 1;
1734         temppath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1735         if (!temppath)
1736             return E_OUTOFMEMORY;
1737         StrCpyNW(temppath, path, len);
1738         realpath = temppath;
1739     }
1740     else
1741     {
1742         realpath = path;
1743     }
1744
1745     /* try to create the directory if asked to */
1746     if (flags & (SHPPFW_DIRCREATE|SHPPFW_ASKDIRCREATE))
1747     {
1748         if (flags & SHPPFW_ASKDIRCREATE)
1749             FIXME("treating SHPPFW_ASKDIRCREATE as SHPPFW_DIRCREATE\n");
1750
1751         SHCreateDirectoryExW(0, realpath, NULL);
1752     }
1753
1754     /* check if we can access the directory */
1755     res = GetFileAttributesW(realpath);
1756
1757     HeapFree(GetProcessHeap(), 0, temppath);
1758
1759     if (res == INVALID_FILE_ATTRIBUTES)
1760     {
1761         err = GetLastError();
1762         if (err == ERROR_FILE_NOT_FOUND)
1763             return HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND);
1764         return HRESULT_FROM_WIN32(err);
1765     }
1766     else if (res & FILE_ATTRIBUTE_DIRECTORY)
1767         return S_OK;
1768     else
1769         return HRESULT_FROM_WIN32(ERROR_DIRECTORY);
1770 }