dlls/shell32/shlexec.c

   1 /*
   2  *                              Shell Library Functions
   3  *
   4  * Copyright 1998 Marcus Meissner
   5  * Copyright 2002 Eric Pouech
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <stdarg.h>
  28 #include <stdio.h>
  29 #ifdef HAVE_UNISTD_H
  30 # include <unistd.h>
  31 #endif
  32 #include <ctype.h>
  33 #include <assert.h>
  34
  35 #define COBJMACROS
  36
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "winerror.h"
  40 #include "winreg.h"
  41 #include "winuser.h"
  42 #include "shlwapi.h"
  43 #include "ddeml.h"
  44
  45 #include "wine/winbase16.h"
  46 #include "shell32_main.h"
  47 #include "pidl.h"
  48
  49 #include "wine/debug.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL(exec);
  52
  53 static const WCHAR wszOpen[] = {'o','p','e','n',0};
  54 static const WCHAR wszExe[] = {'.','e','x','e',0};
  55 static const WCHAR wszILPtr[] = {':','%','p',0};
  56 static const WCHAR wszShell[] = {'\\','s','h','e','l','l','\\',0};
  57 static const WCHAR wszFolder[] = {'F','o','l','d','e','r',0};
  58 static const WCHAR wszEmpty[] = {0};
  59
  60 #define SEE_MASK_CLASSALL (SEE_MASK_CLASSNAME | SEE_MASK_CLASSKEY)
  61
  62
  63 /***********************************************************************
  64  *      SHELL_ArgifyW [Internal]
  65  *
  66  * this function is supposed to expand the escape sequences found in the registry
  67  * some diving reported that the following were used:
  68  * + %1, %2...  seem to report to parameter of index N in ShellExecute pmts
  69  *      %1 file
  70  *      %2 printer
  71  *      %3 driver
  72  *      %4 port
  73  * %I address of a global item ID (explorer switch /idlist)
  74  * %L seems to be %1 as long filename followed by the 8+3 variation
  75  * %S ???
  76  * %* all following parameters (see batfile)
  77  *
  78  */
  79 static BOOL SHELL_ArgifyW(WCHAR* out, int len, const WCHAR* fmt, const WCHAR* lpFile, LPITEMIDLIST pidl, LPCWSTR args, DWORD* out_len)
  80 {
  81     WCHAR   xlpFile[1024];
  82     BOOL    done = FALSE;
  83     BOOL    found_p1 = FALSE;
  84     PWSTR   res = out;
  85     PCWSTR  cmd;
  86     DWORD   used = 0;
  87
  88     TRACE("%p, %d, %s, %s, %p, %p\n", out, len, debugstr_w(fmt),
  89           debugstr_w(lpFile), pidl, args);
  90
  91     while (*fmt)
  92     {
  93         if (*fmt == '%')
  94         {
  95             switch (*++fmt)
  96             {
  97             case '\0':
  98             case '%':
  99                 used++;
 100                 if (used < len)
 101                     *res++ = '%';
 102                 break;
 103
 104             case '2':
 105             case '3':
 106             case '4':
 107             case '5':
 108             case '6':
 109             case '7':
 110             case '8':
 111             case '9':
 112             case '0':
 113             case '*':
 114                 if (args)
 115                 {
 116                     if (*fmt == '*')
 117                     {
 118                         used++;
 119                         if (used < len)
 120                             *res++ = '"';
 121                         while(*args)
 122                         {
 123                             used++;
 124                             if (used < len)
 125                                 *res++ = *args++;
 126                             else
 127                                 args++;
 128                         }
 129                         used++;
 130                         if (used < len)
 131                             *res++ = '"';
 132                     }
 133                     else
 134                     {
 135                         while(*args && !isspace(*args))
 136                         {
 137                             used++;
 138                             if (used < len)
 139                                 *res++ = *args++;
 140                             else
 141                                 args++;
 142                         }
 143
 144                         while(isspace(*args))
 145                             ++args;
 146                     }
 147                     break;
 148                 }
 149                 /* else fall through */
 150             case '1':
 151                 if (!done || (*fmt == '1'))
 152                 {
 153                     /*FIXME Is the call to SearchPathW() really needed? We already have separated out the parameter string in args. */
 154                     if (SearchPathW(NULL, lpFile, wszExe, sizeof(xlpFile)/sizeof(WCHAR), xlpFile, NULL))
 155                         cmd = xlpFile;
 156                     else
 157                         cmd = lpFile;
 158
 159                     /* Add double quotation marks unless we already have them
 160                        (e.g.: "file://%1" %* for exefile) or unless the arg is already
 161                        enclosed in double quotation marks */
 162                     if ((res == out || *(fmt + 1) != '"') && *cmd != '"')
 163                     {
 164                         used++;
 165                         if (used < len)
 166                             *res++ = '"';
 167                         used += strlenW(cmd);
 168                         if (used < len)
 169                         {
 170                             strcpyW(res, cmd);
 171                             res += strlenW(cmd);
 172                         }
 173                         used++;
 174                         if (used < len)
 175                             *res++ = '"';
 176                     }
 177                     else
 178                     {
 179                         used += strlenW(cmd);
 180                         if (used < len)
 181                         {
 182                             strcpyW(res, cmd);
 183                             res += strlenW(cmd);
 184                         }
 185                     }
 186                 }
 187                 found_p1 = TRUE;
 188                 break;
 189
 190             /*
 191              * IE uses this a lot for activating things such as windows media
 192              * player. This is not verified to be fully correct but it appears
 193              * to work just fine.
 194              */
 195             case 'l':
 196             case 'L':
 197                 if (lpFile) {
 198                     used += strlenW(lpFile);
 199                     if (used < len)
 200                     {
 201                         strcpyW(res, lpFile);
 202                         res += strlenW(lpFile);
 203                     }
 204                 }
 205                 found_p1 = TRUE;
 206                 break;
 207
 208             case 'i':
 209             case 'I':
 210                 if (pidl) {
 211                     INT chars = 0;
 212                     /* %p should not exceed 8, maybe 16 when looking foward to 64bit.
 213                      * allowing a buffer of 100 should more than exceed all needs */
 214                     WCHAR buf[100];
 215                     LPVOID  pv;
 216                     HGLOBAL hmem = SHAllocShared(pidl, ILGetSize(pidl), 0);
 217                     pv = SHLockShared(hmem, 0);
 218                     chars = sprintfW(buf, wszILPtr, pv);
 219                     if (chars >= sizeof(buf)/sizeof(WCHAR))
 220                         ERR("pidl format buffer too small!\n");
 221                     used += chars;
 222                     if (used < len)
 223                     {
 224                         strcpyW(res,buf);
 225                         res += chars;
 226                     }
 227                     SHUnlockShared(pv);
 228                 }
 229                 found_p1 = TRUE;
 230                 break;
 231
 232             default:
 233                 /*
 234                  * Check if this is an env-variable here...
 235                  */
 236
 237                 /* Make sure that we have at least one more %.*/
 238                 if (strchrW(fmt, '%'))
 239                 {
 240                     WCHAR   tmpBuffer[1024];
 241                     PWSTR   tmpB = tmpBuffer;
 242                     WCHAR   tmpEnvBuff[MAX_PATH];
 243                     DWORD   envRet;
 244
 245                     while (*fmt != '%')
 246                         *tmpB++ = *fmt++;
 247                     *tmpB++ = 0;
 248
 249                     TRACE("Checking %s to be an env-var\n", debugstr_w(tmpBuffer));
 250
 251                     envRet = GetEnvironmentVariableW(tmpBuffer, tmpEnvBuff, MAX_PATH);
 252                     if (envRet == 0 || envRet > MAX_PATH)
 253                     {
 254                         used += strlenW(tmpBuffer);
 255                         if (used < len)
 256                         {
 257                             strcpyW( res, tmpBuffer );
 258                             res += strlenW(tmpBuffer);
 259                         }
 260                     }
 261                     else
 262                     {
 263                         used += strlenW(tmpEnvBuff);
 264                         if (used < len)
 265                         {
 266                             strcpyW( res, tmpEnvBuff );
 267                             res += strlenW(tmpEnvBuff);
 268                         }
 269                     }
 270                 }
 271                 done = TRUE;
 272                 break;
 273             }
 274             /* Don't skip past terminator (catch a single '%' at the end) */
 275             if (*fmt != '\0')
 276             {
 277                 fmt++;
 278             }
 279         }
 280         else
 281         {
 282             used ++;
 283             if (used < len)
 284                 *res++ = *fmt++;
 285             else
 286                 fmt++;
 287         }
 288     }
 289
 290     *res = '\0';
 291     TRACE("used %i of %i space\n",used,len);
 292     if (out_len)
 293         *out_len = used;
 294
 295     return found_p1;
 296 }
 297
 298 HRESULT SHELL_GetPathFromIDListForExecuteA(LPCITEMIDLIST pidl, LPSTR pszPath, UINT uOutSize)
 299 {
 300     STRRET strret;
 301     IShellFolder* desktop;
 302
 303     HRESULT hr = SHGetDesktopFolder(&desktop);
 304
 305     if (SUCCEEDED(hr)) {
 306         hr = IShellFolder_GetDisplayNameOf(desktop, pidl, SHGDN_FORPARSING, &strret);
 307
 308         if (SUCCEEDED(hr))
 309             StrRetToStrNA(pszPath, uOutSize, &strret, pidl);
 310
 311         IShellFolder_Release(desktop);
 312     }
 313
 314     return hr;
 315 }
 316
 317 HRESULT SHELL_GetPathFromIDListForExecuteW(LPCITEMIDLIST pidl, LPWSTR pszPath, UINT uOutSize)
 318 {
 319     STRRET strret;
 320     IShellFolder* desktop;
 321
 322     HRESULT hr = SHGetDesktopFolder(&desktop);
 323
 324     if (SUCCEEDED(hr)) {
 325         hr = IShellFolder_GetDisplayNameOf(desktop, pidl, SHGDN_FORPARSING, &strret);
 326
 327         if (SUCCEEDED(hr))
 328             StrRetToStrNW(pszPath, uOutSize, &strret, pidl);
 329
 330         IShellFolder_Release(desktop);
 331     }
 332
 333     return hr;
 334 }
 335
 336 /*************************************************************************
 337  *      SHELL_ExecuteW [Internal]
 338  *
 339  */
 340 static UINT_PTR SHELL_ExecuteW(const WCHAR *lpCmd, WCHAR *env, BOOL shWait,
 341                             LPSHELLEXECUTEINFOW psei, LPSHELLEXECUTEINFOW psei_out)
 342 {
 343     STARTUPINFOW  startup;
 344     PROCESS_INFORMATION info;
 345     UINT_PTR retval = 31;
 346     UINT gcdret = 0;
 347     WCHAR curdir[MAX_PATH];
 348
 349     TRACE("Execute %s from directory %s\n", debugstr_w(lpCmd), debugstr_w(psei->lpDirectory));
 350     /* ShellExecute specifies the command from psei->lpDirectory
 351      * if present. Not from the current dir as CreateProcess does */
 352     if( psei->lpDirectory && psei->lpDirectory[0] )
 353         if( ( gcdret = GetCurrentDirectoryW( MAX_PATH, curdir)))
 354             if( !SetCurrentDirectoryW( psei->lpDirectory))
 355                 ERR("cannot set directory %s\n", debugstr_w(psei->lpDirectory));
 356     ZeroMemory(&startup,sizeof(STARTUPINFOW));
 357     startup.cb = sizeof(STARTUPINFOW);
 358     startup.dwFlags = STARTF_USESHOWWINDOW;
 359     startup.wShowWindow = psei->nShow;
 360     if (CreateProcessW(NULL, (LPWSTR)lpCmd, NULL, NULL, FALSE, CREATE_UNICODE_ENVIRONMENT, env,
 361                        psei->lpDirectory && *psei->lpDirectory ? psei->lpDirectory : NULL,
 362                        &startup, &info))
 363     {
 364         /* Give 30 seconds to the app to come up, if desired. Probably only needed
 365            when starting app immediately before making a DDE connection. */
 366         if (shWait)
 367             if (WaitForInputIdle( info.hProcess, 30000 ) == WAIT_FAILED)
 368                 WARN("WaitForInputIdle failed: Error %d\n", GetLastError() );
 369         retval = 33;
 370         if (psei->fMask & SEE_MASK_NOCLOSEPROCESS)
 371             psei_out->hProcess = info.hProcess;
 372         else
 373             CloseHandle( info.hProcess );
 374         CloseHandle( info.hThread );
 375     }
 376     else if ((retval = GetLastError()) >= 32)
 377     {
 378         TRACE("CreateProcess returned error %d\n", retval);
 379         retval = ERROR_BAD_FORMAT;
 380     }
 381
 382     TRACE("returning %u\n", retval);
 383
 384     psei_out->hInstApp = (HINSTANCE)retval;
 385     if( gcdret )
 386         if( !SetCurrentDirectoryW( curdir))
 387             ERR("cannot return to directory %s\n", debugstr_w(curdir));
 388
 389     return retval;
 390 }
 391
 392
 393 /***********************************************************************
 394  *           SHELL_BuildEnvW    [Internal]
 395  *
 396  * Build the environment for the new process, adding the specified
 397  * path to the PATH variable. Returned pointer must be freed by caller.
 398  */
 399 static void *SHELL_BuildEnvW( const WCHAR *path )
 400 {
 401     static const WCHAR wPath[] = {'P','A','T','H','=',0};
 402     WCHAR *strings, *new_env;
 403     WCHAR *p, *p2;
 404     int total = strlenW(path) + 1;
 405     BOOL got_path = FALSE;
 406
 407     if (!(strings = GetEnvironmentStringsW())) return NULL;
 408     p = strings;
 409     while (*p)
 410     {
 411         int len = strlenW(p) + 1;
 412         if (!strncmpiW( p, wPath, 5 )) got_path = TRUE;
 413         total += len;
 414         p += len;
 415     }
 416     if (!got_path) total += 5;  /* we need to create PATH */
 417     total++;  /* terminating null */
 418
 419     if (!(new_env = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) )))
 420     {
 421         FreeEnvironmentStringsW( strings );
 422         return NULL;
 423     }
 424     p = strings;
 425     p2 = new_env;
 426     while (*p)
 427     {
 428         int len = strlenW(p) + 1;
 429         memcpy( p2, p, len * sizeof(WCHAR) );
 430         if (!strncmpiW( p, wPath, 5 ))
 431         {
 432             p2[len - 1] = ';';
 433             strcpyW( p2 + len, path );
 434             p2 += strlenW(path) + 1;
 435         }
 436         p += len;
 437         p2 += len;
 438     }
 439     if (!got_path)
 440     {
 441         strcpyW( p2, wPath );
 442         strcatW( p2, path );
 443         p2 += strlenW(p2) + 1;
 444     }
 445     *p2 = 0;
 446     FreeEnvironmentStringsW( strings );
 447     return new_env;
 448 }
 449
 450
 451 /***********************************************************************
 452  *           SHELL_TryAppPathW  [Internal]
 453  *
 454  * Helper function for SHELL_FindExecutable
 455  * @param lpResult - pointer to a buffer of size MAX_PATH
 456  * On entry: szName is a filename (probably without path separators).
 457  * On exit: if szName found in "App Path", place full path in lpResult, and return true
 458  */
 459 static BOOL SHELL_TryAppPathW( LPCWSTR szName, LPWSTR lpResult, WCHAR **env)
 460 {
 461     static const WCHAR wszKeyAppPaths[] = {'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\','W','i','n','d','o','w','s',
 462         '\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\','A','p','p',' ','P','a','t','h','s','\\',0};
 463     static const WCHAR wPath[] = {'P','a','t','h',0};
 464     HKEY hkApp = 0;
 465     WCHAR buffer[1024];
 466     LONG len;
 467     LONG res;
 468     BOOL found = FALSE;
 469
 470     if (env) *env = NULL;
 471     strcpyW(buffer, wszKeyAppPaths);
 472     strcatW(buffer, szName);
 473     res = RegOpenKeyExW(HKEY_LOCAL_MACHINE, buffer, 0, KEY_READ, &hkApp);
 474     if (res) goto end;
 475
 476     len = MAX_PATH*sizeof(WCHAR);
 477     res = RegQueryValueW(hkApp, NULL, lpResult, &len);
 478     if (res) goto end;
 479     found = TRUE;
 480
 481     if (env)
 482     {
 483         DWORD count = sizeof(buffer);
 484         if (!RegQueryValueExW(hkApp, wPath, NULL, NULL, (LPBYTE)buffer, &count) && buffer[0])
 485             *env = SHELL_BuildEnvW( buffer );
 486     }
 487
 488 end:
 489     if (hkApp) RegCloseKey(hkApp);
 490     return found;
 491 }
 492
 493 static UINT SHELL_FindExecutableByOperation(LPCWSTR lpOperation, LPWSTR key, LPWSTR filetype, LPWSTR command, LONG commandlen)
 494 {
 495     static const WCHAR wCommand[] = {'\\','c','o','m','m','a','n','d',0};
 496     HKEY hkeyClass;
 497     WCHAR verb[MAX_PATH];
 498
 499     if (RegOpenKeyExW(HKEY_CLASSES_ROOT, filetype, 0, 0x02000000, &hkeyClass))
 500         return 31; /* default - 'No association was found' */
 501     if (!HCR_GetDefaultVerbW(hkeyClass, lpOperation, verb, sizeof(verb)))
 502         return 31; /* default - 'No association was found' */
 503     RegCloseKey(hkeyClass);
 504
 505     /* Looking for ...buffer\shell\<verb>\command */
 506     strcatW(filetype, wszShell);
 507     strcatW(filetype, verb);
 508     strcatW(filetype, wCommand);
 509
 510     if (RegQueryValueW(HKEY_CLASSES_ROOT, filetype, command,
 511                        &commandlen) == ERROR_SUCCESS)
 512     {
 513         commandlen /= sizeof(WCHAR);
 514         if (key) strcpyW(key, filetype);
 515 #if 0
 516         LPWSTR tmp;
 517         WCHAR param[256];
 518         LONG paramlen = sizeof(param);
 519         static const WCHAR wSpace[] = {' ',0};
 520
 521         /* FIXME: it seems all Windows version don't behave the same here.
 522          * the doc states that this ddeexec information can be found after
 523          * the exec names.
 524          * on Win98, it doesn't appear, but I think it does on Win2k
 525          */
 526         /* Get the parameters needed by the application
 527            from the associated ddeexec key */
 528         tmp = strstrW(filetype, wCommand);
 529         tmp[0] = '\0';
 530         strcatW(filetype, wDdeexec);
 531         if (RegQueryValueW(HKEY_CLASSES_ROOT, filetype, param,
 532                                      &paramlen) == ERROR_SUCCESS)
 533         {
 534             paramlen /= sizeof(WCHAR);
 535             strcatW(command, wSpace);
 536             strcatW(command, param);
 537             commandlen += paramlen;
 538         }
 539 #endif
 540
 541         command[commandlen] = '\0';
 542
 543         return 33; /* FIXME see SHELL_FindExecutable() */
 544     }
 545
 546     return 31;  /* default - 'No association was found' */
 547 }
 548
 549 /*************************************************************************
 550  *      SHELL_FindExecutable [Internal]
 551  *
 552  * Utility for code sharing between FindExecutable and ShellExecute
 553  * in:
 554  *      lpFile the name of a file
 555  *      lpOperation the operation on it (open)
 556  * out:
 557  *      lpResult a buffer, big enough :-(, to store the command to do the
 558  *              operation on the file
 559  *      key a buffer, big enough, to get the key name to do actually the
 560  *              command (it'll be used afterwards for more information
 561  *              on the operation)
 562  */
 563 UINT SHELL_FindExecutable(LPCWSTR lpPath, LPCWSTR lpFile, LPCWSTR lpOperation,
 564                                  LPWSTR lpResult, int resultLen, LPWSTR key, WCHAR **env, LPITEMIDLIST pidl, LPCWSTR args)
 565 {
 566     static const WCHAR wWindows[] = {'w','i','n','d','o','w','s',0};
 567     static const WCHAR wPrograms[] = {'p','r','o','g','r','a','m','s',0};
 568     static const WCHAR wExtensions[] = {'e','x','e',' ','p','i','f',' ','b','a','t',' ','c','m','d',' ','c','o','m',0};
 569     WCHAR *extension = NULL; /* pointer to file extension */
 570     WCHAR filetype[256];     /* registry name for this filetype */
 571     LONG  filetypelen = sizeof(filetype); /* length of above */
 572     WCHAR command[1024];     /* command from registry */
 573     WCHAR wBuffer[256];      /* Used to GetProfileString */
 574     UINT  retval = 31;       /* default - 'No association was found' */
 575     WCHAR *tok;              /* token pointer */
 576     WCHAR xlpFile[256];      /* result of SearchPath */
 577     DWORD attribs;           /* file attributes */
 578
 579     TRACE("%s\n", (lpFile != NULL) ? debugstr_w(lpFile) : "-");
 580
 581     if (!lpResult)
 582         return ERROR_INVALID_PARAMETER;
 583
 584     xlpFile[0] = '\0';
 585     lpResult[0] = '\0'; /* Start off with an empty return string */
 586     if (key) *key = '\0';
 587
 588     /* trap NULL parameters on entry */
 589     if (!lpFile)
 590     {
 591         WARN("(lpFile=%s,lpResult=%s): NULL parameter\n",
 592              debugstr_w(lpFile), debugstr_w(lpResult));
 593         return ERROR_FILE_NOT_FOUND; /* File not found. Close enough, I guess. */
 594     }
 595
 596     if (SHELL_TryAppPathW( lpFile, lpResult, env ))
 597     {
 598         TRACE("found %s via App Paths\n", debugstr_w(lpResult));
 599         return 33;
 600     }
 601
 602     if (SearchPathW(lpPath, lpFile, wszExe, sizeof(xlpFile)/sizeof(WCHAR), xlpFile, NULL))
 603     {
 604         TRACE("SearchPathW returned non-zero\n");
 605         lpFile = xlpFile;
 606         /* Hey, isn't this value ignored?  Why make this call?  Shouldn't we return here?  --dank*/
 607     }
 608
 609     attribs = GetFileAttributesW(lpFile);
 610     if (attribs!=INVALID_FILE_ATTRIBUTES && (attribs&FILE_ATTRIBUTE_DIRECTORY))
 611     {
 612        strcpyW(filetype, wszFolder);
 613        filetypelen = 6;    /* strlen("Folder") */
 614     }
 615     else
 616     {
 617         /* First thing we need is the file's extension */
 618         extension = strrchrW(xlpFile, '.'); /* Assume last "." is the one; */
 619         /* File->Run in progman uses */
 620         /* .\FILE.EXE :( */
 621         TRACE("xlpFile=%s,extension=%s\n", debugstr_w(xlpFile), debugstr_w(extension));
 622
 623         if (extension == NULL || extension[1]==0)
 624         {
 625             WARN("Returning 31 - No association\n");
 626             return 31; /* no association */
 627         }
 628
 629         /* Three places to check: */
 630         /* 1. win.ini, [windows], programs (NB no leading '.') */
 631         /* 2. Registry, HKEY_CLASS_ROOT\<filetype>\shell\open\command */
 632         /* 3. win.ini, [extensions], extension (NB no leading '.' */
 633         /* All I know of the order is that registry is checked before */
 634         /* extensions; however, it'd make sense to check the programs */
 635         /* section first, so that's what happens here. */
 636
 637         /* See if it's a program - if GetProfileString fails, we skip this
 638          * section. Actually, if GetProfileString fails, we've probably
 639          * got a lot more to worry about than running a program... */
 640         if (GetProfileStringW(wWindows, wPrograms, wExtensions, wBuffer, sizeof(wBuffer)/sizeof(WCHAR)) > 0)
 641         {
 642             CharLowerW(wBuffer);
 643             tok = wBuffer;
 644             while (*tok)
 645             {
 646                 WCHAR *p = tok;
 647                 while (*p && *p != ' ' && *p != '\t') p++;
 648                 if (*p)
 649                 {
 650                     *p++ = 0;
 651                     while (*p == ' ' || *p == '\t') p++;
 652                 }
 653
 654                 if (strcmpiW(tok, &extension[1]) == 0) /* have to skip the leading "." */
 655                 {
 656                     strcpyW(lpResult, xlpFile);
 657                     /* Need to perhaps check that the file has a path
 658                      * attached */
 659                     TRACE("found %s\n", debugstr_w(lpResult));
 660                     return 33;
 661
 662                     /* Greater than 32 to indicate success FIXME According to the
 663                      * docs, I should be returning a handle for the
 664                      * executable. Does this mean I'm supposed to open the
 665                      * executable file or something? More RTFM, I guess... */
 666                 }
 667                 tok = p;
 668             }
 669         }
 670
 671         /* Check registry */
 672         if (RegQueryValueW(HKEY_CLASSES_ROOT, extension, filetype,
 673                            &filetypelen) == ERROR_SUCCESS)
 674         {
 675             filetypelen /= sizeof(WCHAR);
 676             filetype[filetypelen] = '\0';
 677             TRACE("File type: %s\n", debugstr_w(filetype));
 678         }
 679         else
 680         {
 681             *filetype = '\0';
 682             filetypelen = 0;
 683         }
 684     }
 685
 686     if (*filetype)
 687     {
 688         /* pass the operation string to SHELL_FindExecutableByOperation() */
 689         filetype[filetypelen] = '\0';
 690         retval = SHELL_FindExecutableByOperation(lpOperation, key, filetype, command, sizeof(command));
 691
 692         if (retval > 32)
 693         {
 694             DWORD finishedLen;
 695             SHELL_ArgifyW(lpResult, resultLen, command, xlpFile, pidl, args, &finishedLen);
 696             if (finishedLen > resultLen)
 697                 ERR("Argify buffer not large enough.. truncated\n");
 698
 699             /* Remove double quotation marks and command line arguments */
 700             if (*lpResult == '"')
 701             {
 702                 WCHAR *p = lpResult;
 703                 while (*(p + 1) != '"')
 704                 {
 705                     *p = *(p + 1);
 706                     p++;
 707                 }
 708                 *p = '\0';
 709             }
 710         }
 711     }
 712     else /* Check win.ini */
 713     {
 714         static const WCHAR wExtensions[] = {'e','x','t','e','n','s','i','o','n','s',0};
 715
 716         /* Toss the leading dot */
 717         extension++;
 718         if (GetProfileStringW(wExtensions, extension, wszEmpty, command, sizeof(command)/sizeof(WCHAR)) > 0)
 719         {
 720             if (strlenW(command) != 0)
 721             {
 722                 strcpyW(lpResult, command);
 723                 tok = strchrW(lpResult, '^'); /* should be ^.extension? */
 724                 if (tok != NULL)
 725                 {
 726                     tok[0] = '\0';
 727                     strcatW(lpResult, xlpFile); /* what if no dir in xlpFile? */
 728                     tok = strchrW(command, '^'); /* see above */
 729                     if ((tok != NULL) && (strlenW(tok)>5))
 730                     {
 731                         strcatW(lpResult, &tok[5]);
 732                     }
 733                 }
 734                 retval = 33; /* FIXME - see above */
 735             }
 736         }
 737     }
 738
 739     TRACE("returning %s\n", debugstr_w(lpResult));
 740     return retval;
 741 }
 742
 743 /******************************************************************
 744  *              dde_cb
 745  *
 746  * callback for the DDE connection. not really useful
 747  */
 748 static HDDEDATA CALLBACK dde_cb(UINT uType, UINT uFmt, HCONV hConv,
 749                                 HSZ hsz1, HSZ hsz2, HDDEDATA hData,
 750                                 ULONG_PTR dwData1, ULONG_PTR dwData2)
 751 {
 752     TRACE("dde_cb: %04x, %04x, %p, %p, %p, %p, %08lx, %08lx\n",
 753            uType, uFmt, hConv, hsz1, hsz2, hData, dwData1, dwData2);
 754     return NULL;
 755 }
 756
 757 /******************************************************************
 758  *              dde_connect
 759  *
 760  * ShellExecute helper. Used to do an operation with a DDE connection
 761  *
 762  * Handles both the direct connection (try #1), and if it fails,
 763  * launching an application and trying (#2) to connect to it
 764  *
 765  */
 766 static unsigned dde_connect(WCHAR* key, const WCHAR* start, WCHAR* ddeexec,
 767                             const WCHAR* lpFile, WCHAR *env,
 768                             LPCWSTR szCommandline, LPITEMIDLIST pidl, SHELL_ExecuteW32 execfunc,
 769                             LPSHELLEXECUTEINFOW psei, LPSHELLEXECUTEINFOW psei_out)
 770 {
 771     static const WCHAR wApplication[] = {'\\','a','p','p','l','i','c','a','t','i','o','n',0};
 772     static const WCHAR wTopic[] = {'\\','t','o','p','i','c',0};
 773     WCHAR *     endkey = key + strlenW(key);
 774     WCHAR       app[256], topic[256], ifexec[256], res[256];
 775     LONG        applen, topiclen, ifexeclen;
 776     WCHAR *     exec;
 777     DWORD       ddeInst = 0;
 778     DWORD       tid;
 779     DWORD       resultLen;
 780     HSZ         hszApp, hszTopic;
 781     HCONV       hConv;
 782     HDDEDATA    hDdeData;
 783     unsigned    ret = 31;
 784     BOOL unicode = !(GetVersion() & 0x80000000);
 785
 786     strcpyW(endkey, wApplication);
 787     applen = sizeof(app);
 788     if (RegQueryValueW(HKEY_CLASSES_ROOT, key, app, &applen) != ERROR_SUCCESS)
 789     {
 790         FIXME("default app name NIY %s\n", debugstr_w(key));
 791         return 2;
 792     }
 793
 794     strcpyW(endkey, wTopic);
 795     topiclen = sizeof(topic);
 796     if (RegQueryValueW(HKEY_CLASSES_ROOT, key, topic, &topiclen) != ERROR_SUCCESS)
 797     {
 798         static const WCHAR wSystem[] = {'S','y','s','t','e','m',0};
 799         strcpyW(topic, wSystem);
 800     }
 801
 802     if (unicode)
 803     {
 804         if (DdeInitializeW(&ddeInst, dde_cb, APPCMD_CLIENTONLY, 0L) != DMLERR_NO_ERROR)
 805             return 2;
 806     }
 807     else
 808     {
 809         if (DdeInitializeA(&ddeInst, dde_cb, APPCMD_CLIENTONLY, 0L) != DMLERR_NO_ERROR)
 810             return 2;
 811     }
 812
 813     hszApp = DdeCreateStringHandleW(ddeInst, app, CP_WINUNICODE);
 814     hszTopic = DdeCreateStringHandleW(ddeInst, topic, CP_WINUNICODE);
 815
 816     hConv = DdeConnect(ddeInst, hszApp, hszTopic, NULL);
 817     exec = ddeexec;
 818     if (!hConv)
 819     {
 820         static const WCHAR wIfexec[] = {'\\','i','f','e','x','e','c',0};
 821         TRACE("Launching '%s'\n", debugstr_w(start));
 822         ret = execfunc(start, env, TRUE, psei, psei_out);
 823         if (ret < 32)
 824         {
 825             TRACE("Couldn't launch\n");
 826             goto error;
 827         }
 828         hConv = DdeConnect(ddeInst, hszApp, hszTopic, NULL);
 829         if (!hConv)
 830         {
 831             TRACE("Couldn't connect. ret=%d\n", ret);
 832             DdeUninitialize(ddeInst);
 833             SetLastError(ERROR_DDE_FAIL);
 834             return 30; /* whatever */
 835         }
 836         strcpyW(endkey, wIfexec);
 837         ifexeclen = sizeof(ifexec);
 838         if (RegQueryValueW(HKEY_CLASSES_ROOT, key, ifexec, &ifexeclen) == ERROR_SUCCESS)
 839         {
 840             exec = ifexec;
 841         }
 842     }
 843
 844     SHELL_ArgifyW(res, sizeof(res)/sizeof(WCHAR), exec, lpFile, pidl, szCommandline, &resultLen);
 845     if (resultLen > sizeof(res)/sizeof(WCHAR))
 846         ERR("Argify buffer not large enough, truncated\n");
 847     TRACE("%s %s => %s\n", debugstr_w(exec), debugstr_w(lpFile), debugstr_w(res));
 848
 849     /* It's documented in the KB 330337 that IE has a bug and returns
 850      * error DMLERR_NOTPROCESSED on XTYP_EXECUTE request.
 851      */
 852     if (unicode)
 853         hDdeData = DdeClientTransaction((LPBYTE)res, (strlenW(res) + 1) * sizeof(WCHAR), hConv, 0L, 0,
 854                                          XTYP_EXECUTE, 30000, &tid);
 855     else
 856     {
 857         DWORD lenA = WideCharToMultiByte(CP_ACP, 0, res, -1, NULL, 0, NULL, NULL);
 858         char *resA = HeapAlloc(GetProcessHeap(), 0, lenA);
 859         WideCharToMultiByte(CP_ACP, 0, res, -1, resA, lenA, NULL, NULL);
 860         hDdeData = DdeClientTransaction( (LPBYTE)resA, lenA, hConv, 0L, 0,
 861                                          XTYP_EXECUTE, 10000, &tid );
 862         HeapFree(GetProcessHeap(), 0, resA);
 863     }
 864     if (hDdeData)
 865         DdeFreeDataHandle(hDdeData);
 866     else
 867         WARN("DdeClientTransaction failed with error %04x\n", DdeGetLastError(ddeInst));
 868     ret = 33;
 869
 870     DdeDisconnect(hConv);
 871
 872  error:
 873     DdeUninitialize(ddeInst);
 874
 875     return ret;
 876 }
 877
 878 /*************************************************************************
 879  *      execute_from_key [Internal]
 880  */
 881 static UINT_PTR execute_from_key(LPWSTR key, LPCWSTR lpFile, WCHAR *env, LPCWSTR szCommandline,
 882                              LPCWSTR executable_name,
 883                              SHELL_ExecuteW32 execfunc,
 884                              LPSHELLEXECUTEINFOW psei, LPSHELLEXECUTEINFOW psei_out)
 885 {
 886     WCHAR cmd[256];
 887     LONG cmdlen = sizeof(cmd);
 888     UINT_PTR retval = 31;
 889
 890     TRACE("%s %s %s %s %s\n", debugstr_w(key), debugstr_w(lpFile), debugstr_w(env),
 891            debugstr_w(szCommandline), debugstr_w(executable_name));
 892
 893     cmd[0] = '\0';
 894
 895     /* Get the application from the registry */
 896     if (RegQueryValueW(HKEY_CLASSES_ROOT, key, cmd, &cmdlen) == ERROR_SUCCESS)
 897     {
 898         WCHAR param[1024];
 899         DWORD resultLen;
 900
 901         TRACE("got cmd: %s\n", debugstr_w(cmd));
 902
 903         param[0] = '\0';
 904
 905         /* Is there a replace() function anywhere? */
 906         cmdlen /= sizeof(WCHAR);
 907         cmd[cmdlen] = '\0';
 908         if (!SHELL_ArgifyW(param, sizeof(param)/sizeof(WCHAR), cmd, lpFile, psei->lpIDList, szCommandline, &resultLen))
 909         {
 910             /* looks like there is no %1 param in the cmd, add one */
 911             static const WCHAR oneW[] = { ' ','\"','%','1','\"',0 };
 912             strcatW(cmd, oneW);
 913             SHELL_ArgifyW(param, sizeof(param)/sizeof(WCHAR), cmd, lpFile, psei->lpIDList, szCommandline, &resultLen);
 914         }
 915         if (resultLen > sizeof(param)/sizeof(WCHAR))
 916             ERR("Argify buffer not large enough, truncating\n");
 917
 918         TRACE("executing: %s\n", debugstr_w(param));
 919         retval = execfunc(param, env, FALSE, psei, psei_out);
 920     }
 921     else
 922     {
 923         static const WCHAR wCommand[] = {'c','o','m','m','a','n','d',0};
 924         static const WCHAR wDdeexec[] = {'d','d','e','e','x','e','c',0};
 925         LPWSTR tmp;
 926         WCHAR param[256];
 927         LONG paramlen = sizeof(param);
 928
 929         param[0] = '\0';
 930
 931         /* Get the parameters needed by the application
 932            from the associated ddeexec key */
 933         tmp = strstrW(key, wCommand);
 934         assert(tmp);
 935         strcpyW(tmp, wDdeexec);
 936
 937         TRACE("trying ddeexec cmd: %s\n", debugstr_w(key));
 938
 939         if (RegQueryValueW(HKEY_CLASSES_ROOT, key, param, &paramlen) == ERROR_SUCCESS)
 940         {
 941             TRACE("Got ddeexec %s => %s\n", debugstr_w(key), debugstr_w(param));
 942             retval = dde_connect(key, executable_name, param, lpFile, env, szCommandline, psei->lpIDList, execfunc, psei, psei_out);
 943         }
 944         else
 945             WARN("Nothing appropriate found for %s\n", debugstr_w(key));
 946     }
 947
 948     return retval;
 949 }
 950
 951 /*************************************************************************
 952  * FindExecutableA                      [SHELL32.@]
 953  */
 954 HINSTANCE WINAPI FindExecutableA(LPCSTR lpFile, LPCSTR lpDirectory, LPSTR lpResult)
 955 {
 956     HINSTANCE retval;
 957     WCHAR *wFile = NULL, *wDirectory = NULL;
 958     WCHAR wResult[MAX_PATH];
 959
 960     if (lpFile) __SHCloneStrAtoW(&wFile, lpFile);
 961     if (lpDirectory) __SHCloneStrAtoW(&wDirectory, lpDirectory);
 962
 963     retval = FindExecutableW(wFile, wDirectory, wResult);
 964     WideCharToMultiByte(CP_ACP, 0, wResult, -1, lpResult, MAX_PATH, NULL, NULL);
 965     SHFree( wFile );
 966     SHFree( wDirectory );
 967
 968     TRACE("returning %s\n", lpResult);
 969     return retval;
 970 }
 971
 972 /*************************************************************************
 973  * FindExecutableW                      [SHELL32.@]
 974  */
 975 HINSTANCE WINAPI FindExecutableW(LPCWSTR lpFile, LPCWSTR lpDirectory, LPWSTR lpResult)
 976 {
 977     UINT_PTR retval = 31;    /* default - 'No association was found' */
 978     WCHAR old_dir[1024];
 979
 980     TRACE("File %s, Dir %s\n",
 981           (lpFile != NULL ? debugstr_w(lpFile) : "-"), (lpDirectory != NULL ? debugstr_w(lpDirectory) : "-"));
 982
 983     lpResult[0] = '\0'; /* Start off with an empty return string */
 984
 985     /* trap NULL parameters on entry */
 986     if ((lpFile == NULL) || (lpResult == NULL))
 987     {
 988         /* FIXME - should throw a warning, perhaps! */
 989         return (HINSTANCE)2; /* File not found. Close enough, I guess. */
 990     }
 991
 992     if (lpDirectory)
 993     {
 994         GetCurrentDirectoryW(sizeof(old_dir)/sizeof(WCHAR), old_dir);
 995         SetCurrentDirectoryW(lpDirectory);
 996     }
 997
 998     retval = SHELL_FindExecutable(lpDirectory, lpFile, wszOpen, lpResult, MAX_PATH, NULL, NULL, NULL, NULL);
 999
1000     TRACE("returning %s\n", debugstr_w(lpResult));
1001     if (lpDirectory)
1002         SetCurrentDirectoryW(old_dir);
1003     return (HINSTANCE)retval;
1004 }
1005
1006 /* FIXME: is this already implemented somewhere else? */
1007 static HKEY ShellExecute_GetClassKey( LPSHELLEXECUTEINFOW sei )
1008 {
1009     LPCWSTR ext = NULL, lpClass = NULL;
1010     LPWSTR cls = NULL;
1011     DWORD type = 0, sz = 0;
1012     HKEY hkey = 0;
1013     LONG r;
1014
1015     if (sei->fMask & SEE_MASK_CLASSALL)
1016         return sei->hkeyClass;
1017
1018     if (sei->fMask & SEE_MASK_CLASSNAME)
1019         lpClass = sei->lpClass;
1020     else
1021     {
1022         ext = PathFindExtensionW( sei->lpFile );
1023         TRACE("ext = %s\n", debugstr_w( ext ) );
1024         if (!ext)
1025             return hkey;
1026
1027         r = RegOpenKeyW( HKEY_CLASSES_ROOT, ext, &hkey );
1028         if (r != ERROR_SUCCESS )
1029             return hkey;
1030
1031         r = RegQueryValueExW( hkey, NULL, 0, &type, NULL, &sz );
1032         if ( r == ERROR_SUCCESS && type == REG_SZ )
1033         {
1034             sz += sizeof (WCHAR);
1035             cls = HeapAlloc( GetProcessHeap(), 0, sz );
1036             cls[0] = 0;
1037             RegQueryValueExW( hkey, NULL, 0, &type, (LPBYTE) cls, &sz );
1038         }
1039
1040         RegCloseKey( hkey );
1041         lpClass = cls;
1042     }
1043
1044     TRACE("class = %s\n", debugstr_w(lpClass) );
1045
1046     hkey = 0;
1047     if ( lpClass )
1048         RegOpenKeyW( HKEY_CLASSES_ROOT, lpClass, &hkey );
1049
1050     HeapFree( GetProcessHeap(), 0, cls );
1051
1052     return hkey;
1053 }
1054
1055 static IDataObject *shellex_get_dataobj( LPSHELLEXECUTEINFOW sei )
1056 {
1057     LPCITEMIDLIST pidllast = NULL;
1058     IDataObject *dataobj = NULL;
1059     IShellFolder *shf = NULL;
1060     LPITEMIDLIST pidl = NULL;
1061     HRESULT r;
1062
1063     if (sei->fMask & SEE_MASK_CLASSALL)
1064         pidl = sei->lpIDList;
1065     else
1066     {
1067         WCHAR fullpath[MAX_PATH];
1068
1069         fullpath[0] = 0;
1070         r = GetFullPathNameW( sei->lpFile, MAX_PATH, fullpath, NULL );
1071         if (!r)
1072             goto end;
1073
1074         pidl = ILCreateFromPathW( fullpath );
1075     }
1076
1077     r = SHBindToParent( pidl, &IID_IShellFolder, (LPVOID*)&shf, &pidllast );
1078     if ( FAILED( r ) )
1079         goto end;
1080
1081     IShellFolder_GetUIObjectOf( shf, NULL, 1, &pidllast,
1082                                 &IID_IDataObject, NULL, (LPVOID*) &dataobj );
1083
1084 end:
1085     if ( pidl != sei->lpIDList )
1086         ILFree( pidl );
1087     if ( shf )
1088         IShellFolder_Release( shf );
1089     return dataobj;
1090 }
1091
1092 static HRESULT shellex_run_context_menu_default( IShellExtInit *obj,
1093                                                  LPSHELLEXECUTEINFOW sei )
1094 {
1095     IContextMenu *cm = NULL;
1096     CMINVOKECOMMANDINFOEX ici;
1097     MENUITEMINFOW info;
1098     WCHAR string[0x80];
1099     INT i, n, def = -1;
1100     HMENU hmenu = 0;
1101     HRESULT r;
1102
1103     TRACE("%p %p\n", obj, sei );
1104
1105     r = IShellExtInit_QueryInterface( obj, &IID_IContextMenu, (LPVOID*) &cm );
1106     if ( FAILED( r ) )
1107         return r;
1108
1109     hmenu = CreateMenu();
1110     if ( !hmenu )
1111         goto end;
1112
1113     /* the number of the last menu added is returned in r */
1114     r = IContextMenu_QueryContextMenu( cm, hmenu, 0, 0x20, 0x7fff, CMF_DEFAULTONLY );
1115     if ( FAILED( r ) )
1116         goto end;
1117
1118     n = GetMenuItemCount( hmenu );
1119     for ( i = 0; i < n; i++ )
1120     {
1121         memset( &info, 0, sizeof info );
1122         info.cbSize = sizeof info;
1123         info.fMask = MIIM_FTYPE | MIIM_STRING | MIIM_STATE | MIIM_DATA | MIIM_ID;
1124         info.dwTypeData = string;
1125         info.cch = sizeof string;
1126         string[0] = 0;
1127         GetMenuItemInfoW( hmenu, i, TRUE, &info );
1128
1129         TRACE("menu %d %s %08x %08lx %08x %08x\n", i, debugstr_w(string),
1130             info.fState, info.dwItemData, info.fType, info.wID );
1131         if ( ( !sei->lpVerb && (info.fState & MFS_DEFAULT) ) ||
1132              ( sei->lpVerb && !lstrcmpiW( sei->lpVerb, string ) ) )
1133         {
1134             def = i;
1135             break;
1136         }
1137     }
1138
1139     r = E_FAIL;
1140     if ( def == -1 )
1141         goto end;
1142
1143     memset( &ici, 0, sizeof ici );
1144     ici.cbSize = sizeof ici;
1145     ici.fMask = CMIC_MASK_UNICODE;
1146     ici.nShow = sei->nShow;
1147     ici.lpVerb = MAKEINTRESOURCEA( def );
1148     ici.hwnd = sei->hwnd;
1149     ici.lpParametersW = sei->lpParameters;
1150
1151     r = IContextMenu_InvokeCommand( cm, (LPCMINVOKECOMMANDINFO) &ici );
1152
1153     TRACE("invoke command returned %08x\n", r );
1154
1155 end:
1156     if ( hmenu )
1157         DestroyMenu( hmenu );
1158     if ( cm )
1159         IContextMenu_Release( cm );
1160     return r;
1161 }
1162
1163 static HRESULT shellex_load_object_and_run( HKEY hkey, LPCGUID guid, LPSHELLEXECUTEINFOW sei )
1164 {
1165     IDataObject *dataobj = NULL;
1166     IObjectWithSite *ows = NULL;
1167     IShellExtInit *obj = NULL;
1168     HRESULT r;
1169
1170     TRACE("%p %s %p\n", hkey, debugstr_guid( guid ), sei );
1171
1172     r = CoInitialize( NULL );
1173     if ( FAILED( r ) )
1174         goto end;
1175
1176     r = CoCreateInstance( guid, NULL, CLSCTX_INPROC_SERVER,
1177                            &IID_IShellExtInit, (LPVOID*)&obj );
1178     if ( FAILED( r ) )
1179     {
1180         ERR("failed %08x\n", r );
1181         goto end;
1182     }
1183
1184     dataobj = shellex_get_dataobj( sei );
1185     if ( !dataobj )
1186     {
1187         ERR("failed to get data object\n");
1188         goto end;
1189     }
1190
1191     r = IShellExtInit_Initialize( obj, NULL, dataobj, hkey );
1192     if ( FAILED( r ) )
1193         goto end;
1194
1195     r = IShellExtInit_QueryInterface( obj, &IID_IObjectWithSite, (LPVOID*) &ows );
1196     if ( FAILED( r ) )
1197         goto end;
1198
1199     IObjectWithSite_SetSite( ows, NULL );
1200
1201     r = shellex_run_context_menu_default( obj, sei );
1202
1203 end:
1204     if ( ows )
1205         IObjectWithSite_Release( ows );
1206     if ( dataobj )
1207         IDataObject_Release( dataobj );
1208     if ( obj )
1209         IShellExtInit_Release( obj );
1210     CoUninitialize();
1211     return r;
1212 }
1213
1214
1215 /*************************************************************************
1216  *      ShellExecute_FromContextMenu [Internal]
1217  */
1218 static LONG ShellExecute_FromContextMenu( LPSHELLEXECUTEINFOW sei )
1219 {
1220     static const WCHAR szcm[] = { 's','h','e','l','l','e','x','\\',
1221         'C','o','n','t','e','x','t','M','e','n','u','H','a','n','d','l','e','r','s',0 };
1222     HKEY hkey, hkeycm = 0;
1223     WCHAR szguid[39];
1224     HRESULT hr;
1225     GUID guid;
1226     DWORD i;
1227     LONG r;
1228
1229     TRACE("%s\n", debugstr_w(sei->lpFile) );
1230
1231     hkey = ShellExecute_GetClassKey( sei );
1232     if ( !hkey )
1233         return ERROR_FUNCTION_FAILED;
1234
1235     r = RegOpenKeyW( hkey, szcm, &hkeycm );
1236     if ( r == ERROR_SUCCESS )
1237     {
1238         i = 0;
1239         while ( 1 )
1240         {
1241             r = RegEnumKeyW( hkeycm, i++, szguid, 39 );
1242             if ( r != ERROR_SUCCESS )
1243                 break;
1244
1245             hr = CLSIDFromString( szguid, &guid );
1246             if (SUCCEEDED(hr))
1247             {
1248                 /* stop at the first one that succeeds in running */
1249                 hr = shellex_load_object_and_run( hkey, &guid, sei );
1250                 if ( SUCCEEDED( hr ) )
1251                     break;
1252             }
1253         }
1254         RegCloseKey( hkeycm );
1255     }
1256
1257     if ( hkey != sei->hkeyClass )
1258         RegCloseKey( hkey );
1259     return r;
1260 }
1261
1262 /*************************************************************************
1263  *      SHELL_execute [Internal]
1264  */
1265 BOOL SHELL_execute( LPSHELLEXECUTEINFOW sei, SHELL_ExecuteW32 execfunc )
1266 {
1267     static const WCHAR wQuote[] = {'"',0};
1268     static const WCHAR wSpace[] = {' ',0};
1269     static const WCHAR wWww[] = {'w','w','w',0};
1270     static const WCHAR wFile[] = {'f','i','l','e',0};
1271     static const WCHAR wHttp[] = {'h','t','t','p',':','/','/',0};
1272     static const WCHAR wExplorer[] = {'e','x','p','l','o','r','e','r','.','e','x','e',0};
1273     static const DWORD unsupportedFlags =
1274         SEE_MASK_INVOKEIDLIST  | SEE_MASK_ICON         | SEE_MASK_HOTKEY |
1275         SEE_MASK_CONNECTNETDRV | SEE_MASK_FLAG_DDEWAIT | SEE_MASK_FLAG_NO_UI |
1276         SEE_MASK_UNICODE       | SEE_MASK_NO_CONSOLE   | SEE_MASK_ASYNCOK |
1277         SEE_MASK_HMONITOR;
1278
1279     WCHAR *wszApplicationName, wszParameters[1024], wszDir[MAX_PATH];
1280     DWORD dwApplicationNameLen = MAX_PATH+2;
1281     DWORD len;
1282     SHELLEXECUTEINFOW sei_tmp;  /* modifiable copy of SHELLEXECUTEINFO struct */
1283     WCHAR wfileName[MAX_PATH];
1284     WCHAR *env;
1285     WCHAR lpstrProtocol[256];
1286     LPCWSTR lpFile;
1287     UINT_PTR retval = 31;
1288     WCHAR wcmd[1024];
1289     WCHAR buffer[MAX_PATH];
1290     BOOL done;
1291
1292     /* make a local copy of the LPSHELLEXECUTEINFO structure and work with this from now on */
1293     memcpy(&sei_tmp, sei, sizeof(sei_tmp));
1294
1295     TRACE("mask=0x%08x hwnd=%p verb=%s file=%s parm=%s dir=%s show=0x%08x class=%s\n",
1296             sei_tmp.fMask, sei_tmp.hwnd, debugstr_w(sei_tmp.lpVerb),
1297             debugstr_w(sei_tmp.lpFile), debugstr_w(sei_tmp.lpParameters),
1298             debugstr_w(sei_tmp.lpDirectory), sei_tmp.nShow,
1299             ((sei_tmp.fMask & SEE_MASK_CLASSALL) == SEE_MASK_CLASSNAME) ?
1300                 debugstr_w(sei_tmp.lpClass) : "not used");
1301
1302     sei->hProcess = NULL;
1303
1304     /* make copies of all path/command strings */
1305     if (!sei_tmp.lpFile)
1306     {
1307         wszApplicationName = HeapAlloc(GetProcessHeap(), 0, dwApplicationNameLen*sizeof(WCHAR));
1308         *wszApplicationName = '\0';
1309     }
1310     else if (*sei_tmp.lpFile == '\"')
1311     {
1312         DWORD l = strlenW(sei_tmp.lpFile+1);
1313         if(l >= dwApplicationNameLen) dwApplicationNameLen = l+1;
1314         wszApplicationName = HeapAlloc(GetProcessHeap(), 0, dwApplicationNameLen*sizeof(WCHAR));
1315         memcpy(wszApplicationName, sei_tmp.lpFile+1, (l+1)*sizeof(WCHAR));
1316         if (wszApplicationName[l-1] == '\"')
1317             wszApplicationName[l-1] = '\0';
1318         TRACE("wszApplicationName=%s\n",debugstr_w(wszApplicationName));
1319     } else {
1320         DWORD l = strlenW(sei_tmp.lpFile)+1;
1321         if(l > dwApplicationNameLen) dwApplicationNameLen = l+1;
1322         wszApplicationName = HeapAlloc(GetProcessHeap(), 0, dwApplicationNameLen*sizeof(WCHAR));
1323         memcpy(wszApplicationName, sei_tmp.lpFile, l*sizeof(WCHAR));
1324     }
1325
1326     if (sei_tmp.lpParameters)
1327         strcpyW(wszParameters, sei_tmp.lpParameters);
1328     else
1329         *wszParameters = '\0';
1330
1331     if (sei_tmp.lpDirectory)
1332         strcpyW(wszDir, sei_tmp.lpDirectory);
1333     else
1334         *wszDir = '\0';
1335
1336     /* adjust string pointers to point to the new buffers */
1337     sei_tmp.lpFile = wszApplicationName;
1338     sei_tmp.lpParameters = wszParameters;
1339     sei_tmp.lpDirectory = wszDir;
1340
1341     if (sei_tmp.fMask & unsupportedFlags)
1342     {
1343         FIXME("flags ignored: 0x%08x\n", sei_tmp.fMask & unsupportedFlags);
1344     }
1345
1346     /* process the IDList */
1347     if (sei_tmp.fMask & SEE_MASK_IDLIST)
1348     {
1349         IShellExecuteHookW* pSEH;
1350
1351         HRESULT hr = SHBindToParent(sei_tmp.lpIDList, &IID_IShellExecuteHookW, (LPVOID*)&pSEH, NULL);
1352
1353         if (SUCCEEDED(hr))
1354         {
1355             hr = IShellExecuteHookW_Execute(pSEH, &sei_tmp);
1356
1357             IShellExecuteHookW_Release(pSEH);
1358
1359             if (hr == S_OK) {
1360                 HeapFree(GetProcessHeap(), 0, wszApplicationName);
1361                 return TRUE;
1362             }
1363         }
1364
1365         SHGetPathFromIDListW(sei_tmp.lpIDList, wszApplicationName);
1366         TRACE("-- idlist=%p (%s)\n", sei_tmp.lpIDList, debugstr_w(wszApplicationName));
1367     }
1368
1369     if ( ERROR_SUCCESS == ShellExecute_FromContextMenu( &sei_tmp ) )
1370     {
1371         sei->hInstApp = (HINSTANCE) 33;
1372         HeapFree(GetProcessHeap(), 0, wszApplicationName);
1373         return TRUE;
1374     }
1375
1376     if (sei_tmp.fMask & SEE_MASK_CLASSALL)
1377     {
1378         /* launch a document by fileclass like 'WordPad.Document.1' */
1379         /* the Commandline contains 'c:\Path\wordpad.exe "%1"' */
1380         /* FIXME: szCommandline should not be of a fixed size. Fixed to 1024, MAX_PATH is way too short! */
1381         ULONG cmask=(sei_tmp.fMask & SEE_MASK_CLASSALL);
1382         DWORD resultLen;
1383         HCR_GetExecuteCommandW((cmask == SEE_MASK_CLASSKEY) ? sei_tmp.hkeyClass : NULL,
1384                                (cmask == SEE_MASK_CLASSNAME) ? sei_tmp.lpClass: NULL,
1385                                sei_tmp.lpVerb,
1386                                wszParameters, sizeof(wszParameters)/sizeof(WCHAR));
1387
1388         /* FIXME: get the extension of lpFile, check if it fits to the lpClass */
1389         TRACE("SEE_MASK_CLASSNAME->'%s', doc->'%s'\n", debugstr_w(wszParameters), debugstr_w(wszApplicationName));
1390
1391         wcmd[0] = '\0';
1392         done = SHELL_ArgifyW(wcmd, sizeof(wcmd)/sizeof(WCHAR), wszParameters, wszApplicationName, sei_tmp.lpIDList, NULL, &resultLen);
1393         if (!done && wszApplicationName[0])
1394         {
1395             strcatW(wcmd, wSpace);
1396             strcatW(wcmd, wszApplicationName);
1397         }
1398         if (resultLen > sizeof(wcmd)/sizeof(WCHAR))
1399             ERR("Argify buffer not large enough... truncating\n");
1400         retval = execfunc(wcmd, NULL, FALSE, &sei_tmp, sei);
1401
1402         HeapFree(GetProcessHeap(), 0, wszApplicationName);
1403         return retval > 32;
1404     }
1405
1406     /* Has the IDList not yet been translated? */
1407     if (sei_tmp.fMask & SEE_MASK_IDLIST)
1408     {
1409         /* last chance to translate IDList: now also allow CLSID paths */
1410         if (SUCCEEDED(SHELL_GetPathFromIDListForExecuteW(sei_tmp.lpIDList, buffer, sizeof(buffer)))) {
1411             if (buffer[0]==':' && buffer[1]==':') {
1412                 /* open shell folder for the specified class GUID */
1413                 strcpyW(wszParameters, buffer);
1414                 strcpyW(wszApplicationName, wExplorer);
1415
1416                 sei_tmp.fMask &= ~SEE_MASK_INVOKEIDLIST;
1417             } else {
1418                 WCHAR target[MAX_PATH];
1419                 DWORD attribs;
1420                 DWORD resultLen;
1421                 /* Check if we're executing a directory and if so use the
1422                    handler for the Folder class */
1423                 strcpyW(target, buffer);
1424                 attribs = GetFileAttributesW(buffer);
1425                 if (attribs != INVALID_FILE_ATTRIBUTES &&
1426                     (attribs & FILE_ATTRIBUTE_DIRECTORY) &&
1427                     HCR_GetExecuteCommandW(0, wszFolder,
1428                                            sei_tmp.lpVerb,
1429                                            buffer, sizeof(buffer))) {
1430                     SHELL_ArgifyW(wszApplicationName, dwApplicationNameLen,
1431                                   buffer, target, sei_tmp.lpIDList, NULL, &resultLen);
1432                     if (resultLen > dwApplicationNameLen)
1433                         ERR("Argify buffer not large enough... truncating\n");
1434                 }
1435                 sei_tmp.fMask &= ~SEE_MASK_INVOKEIDLIST;
1436             }
1437         }
1438     }
1439
1440     /* expand environment strings */
1441     len = ExpandEnvironmentStringsW(sei_tmp.lpFile, NULL, 0);
1442     if (len>0)
1443     {
1444         LPWSTR buf;
1445         buf = HeapAlloc(GetProcessHeap(),0,(len+1)*sizeof(WCHAR));
1446
1447         ExpandEnvironmentStringsW(sei_tmp.lpFile, buf, len+1);
1448         HeapFree(GetProcessHeap(), 0, wszApplicationName);
1449         dwApplicationNameLen = len+1;
1450         wszApplicationName = buf;
1451
1452         sei_tmp.lpFile = wszApplicationName;
1453     }
1454
1455     if (*sei_tmp.lpParameters)
1456     {
1457         len = ExpandEnvironmentStringsW(sei_tmp.lpParameters, NULL, 0);
1458         if (len > 0)
1459         {
1460             LPWSTR buf;
1461             len++;
1462             buf = HeapAlloc(GetProcessHeap(),0,len*sizeof(WCHAR));
1463             ExpandEnvironmentStringsW(sei_tmp.lpParameters, buf, len);
1464             if (len > 1024)
1465                 ERR("Parameters exceeds buffer size (%i > 1024)\n",len);
1466             lstrcpynW(wszParameters, buf, min(1024,len));
1467             HeapFree(GetProcessHeap(),0,buf);
1468         }
1469     }
1470
1471     if (*sei_tmp.lpDirectory)
1472     {
1473         len = ExpandEnvironmentStringsW(sei_tmp.lpDirectory, NULL, 0);
1474         if (len > 0)
1475         {
1476             LPWSTR buf;
1477             len++;
1478             buf = HeapAlloc(GetProcessHeap(),0,len*sizeof(WCHAR));
1479             ExpandEnvironmentStringsW(sei_tmp.lpDirectory, buf, len);
1480             if (len > 1024)
1481                 ERR("Directory exceeds buffer size (%i > 1024)\n",len);
1482             lstrcpynW(wszDir, buf, min(1024,len));
1483             HeapFree(GetProcessHeap(),0,buf);
1484         }
1485     }
1486
1487     /* Else, try to execute the filename */
1488     TRACE("execute:%s,%s,%s\n", debugstr_w(wszApplicationName), debugstr_w(wszParameters), debugstr_w(wszDir));
1489
1490     /* separate out command line arguments from executable file name */
1491     if (!*sei_tmp.lpParameters) {
1492         /* If the executable path is quoted, handle the rest of the command line as parameters. */
1493         if (sei_tmp.lpFile[0] == '"') {
1494             LPWSTR src = wszApplicationName/*sei_tmp.lpFile*/ + 1;
1495             LPWSTR dst = wfileName;
1496             LPWSTR end;
1497
1498             /* copy the unquoted executable path to 'wfileName' */
1499             while(*src && *src!='"')
1500                 *dst++ = *src++;
1501
1502             *dst = '\0';
1503
1504             if (*src == '"') {
1505                 end = ++src;
1506
1507                 while(isspace(*src))
1508                     ++src;
1509             } else
1510                 end = src;
1511
1512             /* copy the parameter string to 'wszParameters' */
1513             strcpyW(wszParameters, src);
1514
1515             /* terminate previous command string after the quote character */
1516             *end = '\0';
1517         }
1518         else
1519         {
1520             /* If the executable name is not quoted, we have to use this search loop here,
1521                that in CreateProcess() is not sufficient because it does not handle shell links. */
1522             WCHAR buffer[MAX_PATH], xlpFile[MAX_PATH];
1523             LPWSTR space, s;
1524
1525             LPWSTR beg = wszApplicationName/*sei_tmp.lpFile*/;
1526             for(s=beg; (space=strchrW(s, ' ')); s=space+1) {
1527                 int idx = space-sei_tmp.lpFile;
1528                 memcpy(buffer, sei_tmp.lpFile, idx * sizeof(WCHAR));
1529                 buffer[idx] = '\0';
1530
1531                 /*FIXME This finds directory paths if the targeted file name contains spaces. */
1532                 if (SearchPathW(*sei_tmp.lpDirectory? sei_tmp.lpDirectory: NULL, buffer, wszExe, sizeof(xlpFile), xlpFile, NULL))
1533                 {
1534                     /* separate out command from parameter string */
1535                     LPCWSTR p = space + 1;
1536
1537                     while(isspaceW(*p))
1538                         ++p;
1539
1540                     strcpyW(wszParameters, p);
1541                     *space = '\0';
1542
1543                     break;
1544                 }
1545             }
1546
1547             strcpyW(wfileName, sei_tmp.lpFile);
1548         }
1549     } else
1550         strcpyW(wfileName, sei_tmp.lpFile);
1551
1552     lpFile = wfileName;
1553
1554     strcpyW(wcmd, wszApplicationName);
1555     if (sei_tmp.lpParameters[0]) {
1556         strcatW(wcmd, wSpace);
1557         strcatW(wcmd, wszParameters);
1558     }
1559
1560     retval = execfunc(wcmd, NULL, FALSE, &sei_tmp, sei);
1561     if (retval > 32) {
1562         HeapFree(GetProcessHeap(), 0, wszApplicationName);
1563         return TRUE;
1564     }
1565
1566     /* Else, try to find the executable */
1567     wcmd[0] = '\0';
1568     retval = SHELL_FindExecutable(sei_tmp.lpDirectory, lpFile, sei_tmp.lpVerb, wcmd, 1024, lpstrProtocol, &env, sei_tmp.lpIDList, sei_tmp.lpParameters);
1569     if (retval > 32)  /* Found */
1570     {
1571         WCHAR wszQuotedCmd[MAX_PATH+2];
1572         /* Must quote to handle case where cmd contains spaces,
1573          * else security hole if malicious user creates executable file "C:\\Program"
1574          */
1575         strcpyW(wszQuotedCmd, wQuote);
1576         strcatW(wszQuotedCmd, wcmd);
1577         strcatW(wszQuotedCmd, wQuote);
1578         if (wszParameters[0]) {
1579             strcatW(wszQuotedCmd, wSpace);
1580             strcatW(wszQuotedCmd, wszParameters);
1581         }
1582         TRACE("%s/%s => %s/%s\n", debugstr_w(wszApplicationName), debugstr_w(sei_tmp.lpVerb), debugstr_w(wszQuotedCmd), debugstr_w(lpstrProtocol));
1583         if (*lpstrProtocol)
1584             retval = execute_from_key(lpstrProtocol, wszApplicationName, env, sei_tmp.lpParameters, wcmd, execfunc, &sei_tmp, sei);
1585         else
1586             retval = execfunc(wszQuotedCmd, env, FALSE, &sei_tmp, sei);
1587         HeapFree( GetProcessHeap(), 0, env );
1588     }
1589     else if (PathIsURLW(lpFile))    /* File not found, check for URL */
1590     {
1591         static const WCHAR wShell[] = {'\\','s','h','e','l','l','\\',0};
1592         static const WCHAR wCommand[] = {'\\','c','o','m','m','a','n','d',0};
1593         LPWSTR lpstrRes;
1594         INT iSize;
1595
1596         lpstrRes = strchrW(lpFile, ':');
1597         if (lpstrRes)
1598             iSize = lpstrRes - lpFile;
1599         else
1600             iSize = strlenW(lpFile);
1601
1602         TRACE("Got URL: %s\n", debugstr_w(lpFile));
1603         /* Looking for ...protocol\shell\lpOperation\command */
1604         memcpy(lpstrProtocol, lpFile, iSize*sizeof(WCHAR));
1605         lpstrProtocol[iSize] = '\0';
1606         strcatW(lpstrProtocol, wShell);
1607         strcatW(lpstrProtocol, sei_tmp.lpVerb? sei_tmp.lpVerb: wszOpen);
1608         strcatW(lpstrProtocol, wCommand);
1609
1610         /* Remove File Protocol from lpFile */
1611         /* In the case file://path/file     */
1612         if (!strncmpiW(lpFile, wFile, iSize))
1613         {
1614             lpFile += iSize;
1615             while (*lpFile == ':') lpFile++;
1616         }
1617         retval = execute_from_key(lpstrProtocol, lpFile, NULL, sei_tmp.lpParameters, wcmd, execfunc, &sei_tmp, sei);
1618     }
1619     /* Check if file specified is in the form www.??????.*** */
1620     else if (!strncmpiW(lpFile, wWww, 3))
1621     {
1622         /* if so, append lpFile http:// and call ShellExecute */
1623         WCHAR lpstrTmpFile[256];
1624         strcpyW(lpstrTmpFile, wHttp);
1625         strcatW(lpstrTmpFile, lpFile);
1626         retval = (UINT_PTR)ShellExecuteW(sei_tmp.hwnd, sei_tmp.lpVerb, lpstrTmpFile, NULL, NULL, 0);
1627     }
1628
1629     TRACE("retval %u\n", retval);
1630
1631     HeapFree(GetProcessHeap(), 0, wszApplicationName);
1632
1633     sei->hInstApp = (HINSTANCE)(retval > 32 ? 33 : retval);
1634     return retval > 32;
1635 }
1636
1637 /*************************************************************************
1638  * ShellExecuteA                        [SHELL32.290]
1639  */
1640 HINSTANCE WINAPI ShellExecuteA(HWND hWnd, LPCSTR lpOperation,LPCSTR lpFile,
1641                                LPCSTR lpParameters,LPCSTR lpDirectory, INT iShowCmd)
1642 {
1643     SHELLEXECUTEINFOA sei;
1644
1645     TRACE("%p,%s,%s,%s,%s,%d\n",
1646           hWnd, debugstr_a(lpOperation), debugstr_a(lpFile),
1647           debugstr_a(lpParameters), debugstr_a(lpDirectory), iShowCmd);
1648
1649     sei.cbSize = sizeof(sei);
1650     sei.fMask = 0;
1651     sei.hwnd = hWnd;
1652     sei.lpVerb = lpOperation;
1653     sei.lpFile = lpFile;
1654     sei.lpParameters = lpParameters;
1655     sei.lpDirectory = lpDirectory;
1656     sei.nShow = iShowCmd;
1657     sei.lpIDList = 0;
1658     sei.lpClass = 0;
1659     sei.hkeyClass = 0;
1660     sei.dwHotKey = 0;
1661     sei.hProcess = 0;
1662
1663     ShellExecuteExA (&sei);
1664     return sei.hInstApp;
1665 }
1666
1667 /*************************************************************************
1668  * ShellExecuteExA                              [SHELL32.292]
1669  *
1670  */
1671 BOOL WINAPI ShellExecuteExA (LPSHELLEXECUTEINFOA sei)
1672 {
1673     SHELLEXECUTEINFOW seiW;
1674     BOOL ret;
1675     WCHAR *wVerb = NULL, *wFile = NULL, *wParameters = NULL, *wDirectory = NULL, *wClass = NULL;
1676
1677     TRACE("%p\n", sei);
1678
1679     memcpy(&seiW, sei, sizeof(SHELLEXECUTEINFOW));
1680
1681     if (sei->lpVerb)
1682         seiW.lpVerb = __SHCloneStrAtoW(&wVerb, sei->lpVerb);
1683
1684     if (sei->lpFile)
1685         seiW.lpFile = __SHCloneStrAtoW(&wFile, sei->lpFile);
1686
1687     if (sei->lpParameters)
1688         seiW.lpParameters = __SHCloneStrAtoW(&wParameters, sei->lpParameters);
1689
1690     if (sei->lpDirectory)
1691         seiW.lpDirectory = __SHCloneStrAtoW(&wDirectory, sei->lpDirectory);
1692
1693     if ((sei->fMask & SEE_MASK_CLASSALL) == SEE_MASK_CLASSNAME && sei->lpClass)
1694         seiW.lpClass = __SHCloneStrAtoW(&wClass, sei->lpClass);
1695     else
1696         seiW.lpClass = NULL;
1697
1698     ret = SHELL_execute( &seiW, SHELL_ExecuteW );
1699
1700     sei->hInstApp = seiW.hInstApp;
1701
1702     if (sei->fMask & SEE_MASK_NOCLOSEPROCESS)
1703         sei->hProcess = seiW.hProcess;
1704
1705     SHFree(wVerb);
1706     SHFree(wFile);
1707     SHFree(wParameters);
1708     SHFree(wDirectory);
1709     SHFree(wClass);
1710
1711     return ret;
1712 }
1713
1714 /*************************************************************************
1715  * ShellExecuteExW                              [SHELL32.293]
1716  *
1717  */
1718 BOOL WINAPI ShellExecuteExW (LPSHELLEXECUTEINFOW sei)
1719 {
1720     return SHELL_execute( sei, SHELL_ExecuteW );
1721 }
1722
1723 /*************************************************************************
1724  * ShellExecuteW                        [SHELL32.294]
1725  * from shellapi.h
1726  * WINSHELLAPI HINSTANCE APIENTRY ShellExecuteW(HWND hwnd, LPCWSTR lpOperation,
1727  * LPCWSTR lpFile, LPCWSTR lpParameters, LPCWSTR lpDirectory, INT nShowCmd);
1728  */
1729 HINSTANCE WINAPI ShellExecuteW(HWND hwnd, LPCWSTR lpOperation, LPCWSTR lpFile,
1730                                LPCWSTR lpParameters, LPCWSTR lpDirectory, INT nShowCmd)
1731 {
1732     SHELLEXECUTEINFOW sei;
1733
1734     TRACE("\n");
1735     sei.cbSize = sizeof(sei);
1736     sei.fMask = 0;
1737     sei.hwnd = hwnd;
1738     sei.lpVerb = lpOperation;
1739     sei.lpFile = lpFile;
1740     sei.lpParameters = lpParameters;
1741     sei.lpDirectory = lpDirectory;
1742     sei.nShow = nShowCmd;
1743     sei.lpIDList = 0;
1744     sei.lpClass = 0;
1745     sei.hkeyClass = 0;
1746     sei.dwHotKey = 0;
1747     sei.hProcess = 0;
1748
1749     SHELL_execute( &sei, SHELL_ExecuteW );
1750     return sei.hInstApp;
1751 }