reactos/dll/win32/credui/credui_main.c

   1 /*
   2  * Credentials User Interface
   3  *
   4  * Copyright 2006 Robert Shearman (for CodeWeavers)
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define WIN32_NO_STATUS
  22
  23 #include <stdarg.h>
  24
  25 #include <windef.h>
  26 #include <winbase.h>
  27 //#include "winnt.h"
  28 #include <winuser.h>
  29 #include <wincred.h>
  30 #include <commctrl.h>
  31
  32 #include "credui_resources.h"
  33
  34 #include <wine/debug.h>
  35 #include <wine/unicode.h>
  36 #include <wine/list.h>
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(credui);
  39
  40 #define TOOLID_INCORRECTPASSWORD    1
  41 #define TOOLID_CAPSLOCKON           2
  42
  43 #define ID_CAPSLOCKPOP              1
  44
  45 struct pending_credentials
  46 {
  47     struct list entry;
  48     PWSTR pszTargetName;
  49     PWSTR pszUsername;
  50     PWSTR pszPassword;
  51     BOOL generic;
  52 };
  53
  54 static HINSTANCE hinstCredUI;
  55
  56 static struct list pending_credentials_list = LIST_INIT(pending_credentials_list);
  57
  58 static CRITICAL_SECTION csPendingCredentials;
  59 static CRITICAL_SECTION_DEBUG critsect_debug =
  60 {
  61     0, 0, &csPendingCredentials,
  62     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  63     0, 0, { (DWORD_PTR)(__FILE__ ": csPendingCredentials") }
  64 };
  65 static CRITICAL_SECTION csPendingCredentials = { &critsect_debug, -1, 0, 0, 0, 0 };
  66
  67
  68 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
  69 {
  70     struct pending_credentials *entry, *cursor2;
  71     TRACE("(0x%p, %d, %p)\n",hinstDLL,fdwReason,lpvReserved);
  72
  73     switch (fdwReason)
  74     {
  75     case DLL_WINE_PREATTACH:
  76         return FALSE;   /* prefer native version */
  77
  78     case DLL_PROCESS_ATTACH:
  79         DisableThreadLibraryCalls(hinstDLL);
  80         hinstCredUI = hinstDLL;
  81         InitCommonControls();
  82         break;
  83
  84     case DLL_PROCESS_DETACH:
  85         if (lpvReserved) break;
  86         LIST_FOR_EACH_ENTRY_SAFE(entry, cursor2, &pending_credentials_list, struct pending_credentials, entry)
  87         {
  88             list_remove(&entry->entry);
  89
  90             HeapFree(GetProcessHeap(), 0, entry->pszTargetName);
  91             HeapFree(GetProcessHeap(), 0, entry->pszUsername);
  92             ZeroMemory(entry->pszPassword, (strlenW(entry->pszPassword) + 1) * sizeof(WCHAR));
  93             HeapFree(GetProcessHeap(), 0, entry->pszPassword);
  94             HeapFree(GetProcessHeap(), 0, entry);
  95         }
  96         DeleteCriticalSection(&csPendingCredentials);
  97         break;
  98     }
  99
 100     return TRUE;
 101 }
 102
 103 static DWORD save_credentials(PCWSTR pszTargetName, PCWSTR pszUsername,
 104                               PCWSTR pszPassword, BOOL generic)
 105 {
 106     CREDENTIALW cred;
 107
 108     TRACE("saving servername %s with username %s\n", debugstr_w(pszTargetName), debugstr_w(pszUsername));
 109
 110     cred.Flags = 0;
 111     cred.Type = generic ? CRED_TYPE_GENERIC : CRED_TYPE_DOMAIN_PASSWORD;
 112     cred.TargetName = (LPWSTR)pszTargetName;
 113     cred.Comment = NULL;
 114     cred.CredentialBlobSize = strlenW(pszPassword) * sizeof(WCHAR);
 115     cred.CredentialBlob = (LPBYTE)pszPassword;
 116     cred.Persist = CRED_PERSIST_ENTERPRISE;
 117     cred.AttributeCount = 0;
 118     cred.Attributes = NULL;
 119     cred.TargetAlias = NULL;
 120     cred.UserName = (LPWSTR)pszUsername;
 121
 122     if (CredWriteW(&cred, 0))
 123         return ERROR_SUCCESS;
 124     else
 125     {
 126         DWORD ret = GetLastError();
 127         ERR("CredWriteW failed with error %d\n", ret);
 128         return ret;
 129     }
 130 }
 131
 132 struct cred_dialog_params
 133 {
 134     PCWSTR pszTargetName;
 135     PCWSTR pszMessageText;
 136     PCWSTR pszCaptionText;
 137     HBITMAP hbmBanner;
 138     PWSTR pszUsername;
 139     ULONG ulUsernameMaxChars;
 140     PWSTR pszPassword;
 141     ULONG ulPasswordMaxChars;
 142     BOOL fSave;
 143     DWORD dwFlags;
 144     HWND hwndBalloonTip;
 145     BOOL fBalloonTipActive;
 146 };
 147
 148 static void CredDialogFillUsernameCombo(HWND hwndUsername, const struct cred_dialog_params *params)
 149 {
 150     DWORD count;
 151     DWORD i;
 152     PCREDENTIALW *credentials;
 153
 154     if (!CredEnumerateW(NULL, 0, &count, &credentials))
 155         return;
 156
 157     for (i = 0; i < count; i++)
 158     {
 159         COMBOBOXEXITEMW comboitem;
 160         DWORD j;
 161         BOOL duplicate = FALSE;
 162
 163         if (params->dwFlags & CREDUI_FLAGS_GENERIC_CREDENTIALS)
 164         {
 165             if ((credentials[i]->Type != CRED_TYPE_GENERIC) || !credentials[i]->UserName)
 166                 continue;
 167         }
 168         else
 169         {
 170             if (credentials[i]->Type == CRED_TYPE_GENERIC)
 171                 continue;
 172         }
 173
 174         /* don't add another item with the same name if we've already added it */
 175         for (j = 0; j < i; j++)
 176             if (!strcmpW(credentials[i]->UserName, credentials[j]->UserName))
 177             {
 178                 duplicate = TRUE;
 179                 break;
 180             }
 181
 182         if (duplicate)
 183             continue;
 184
 185         comboitem.mask = CBEIF_TEXT;
 186         comboitem.iItem = -1;
 187         comboitem.pszText = credentials[i]->UserName;
 188         SendMessageW(hwndUsername, CBEM_INSERTITEMW, 0, (LPARAM)&comboitem);
 189     }
 190
 191     CredFree(credentials);
 192 }
 193
 194 static void CredDialogCreateBalloonTip(HWND hwndDlg, struct cred_dialog_params *params)
 195 {
 196     TTTOOLINFOW toolinfo;
 197     WCHAR wszText[256];
 198
 199     if (params->hwndBalloonTip)
 200         return;
 201
 202     params->hwndBalloonTip = CreateWindowExW(WS_EX_TOOLWINDOW, TOOLTIPS_CLASSW,
 203         NULL, WS_POPUP | TTS_NOPREFIX | TTS_BALLOON, CW_USEDEFAULT,
 204         CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, hwndDlg, NULL,
 205         hinstCredUI, NULL);
 206     SetWindowPos(params->hwndBalloonTip, HWND_TOPMOST, 0, 0, 0, 0,
 207                  SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
 208
 209     if (!LoadStringW(hinstCredUI, IDS_INCORRECTPASSWORD, wszText, sizeof(wszText)/sizeof(wszText[0])))
 210     {
 211         ERR("failed to load IDS_INCORRECTPASSWORD\n");
 212         return;
 213     }
 214
 215     toolinfo.cbSize = sizeof(toolinfo);
 216     toolinfo.uFlags = TTF_TRACK;
 217     toolinfo.hwnd = hwndDlg;
 218     toolinfo.uId = TOOLID_INCORRECTPASSWORD;
 219     memset(&toolinfo.rect, 0, sizeof(toolinfo.rect));
 220     toolinfo.hinst = NULL;
 221     toolinfo.lpszText = wszText;
 222     toolinfo.lParam = 0;
 223     toolinfo.lpReserved = NULL;
 224     SendMessageW(params->hwndBalloonTip, TTM_ADDTOOLW, 0, (LPARAM)&toolinfo);
 225
 226     if (!LoadStringW(hinstCredUI, IDS_CAPSLOCKON, wszText, sizeof(wszText)/sizeof(wszText[0])))
 227     {
 228         ERR("failed to load IDS_CAPSLOCKON\n");
 229         return;
 230     }
 231
 232     toolinfo.uId = TOOLID_CAPSLOCKON;
 233     SendMessageW(params->hwndBalloonTip, TTM_ADDTOOLW, 0, (LPARAM)&toolinfo);
 234 }
 235
 236 static void CredDialogShowIncorrectPasswordBalloon(HWND hwndDlg, struct cred_dialog_params *params)
 237 {
 238     TTTOOLINFOW toolinfo;
 239     RECT rcPassword;
 240     INT x;
 241     INT y;
 242     WCHAR wszTitle[256];
 243
 244     /* user name likely wrong so balloon would be confusing. focus is also
 245      * not set to the password edit box, so more notification would need to be
 246      * handled */
 247     if (!params->pszUsername[0])
 248         return;
 249
 250     /* don't show two balloon tips at once */
 251     if (params->fBalloonTipActive)
 252         return;
 253
 254     if (!LoadStringW(hinstCredUI, IDS_INCORRECTPASSWORDTITLE, wszTitle, sizeof(wszTitle)/sizeof(wszTitle[0])))
 255     {
 256         ERR("failed to load IDS_INCORRECTPASSWORDTITLE\n");
 257         return;
 258     }
 259
 260     CredDialogCreateBalloonTip(hwndDlg, params);
 261
 262     memset(&toolinfo, 0, sizeof(toolinfo));
 263     toolinfo.cbSize = sizeof(toolinfo);
 264     toolinfo.hwnd = hwndDlg;
 265     toolinfo.uId = TOOLID_INCORRECTPASSWORD;
 266
 267     SendMessageW(params->hwndBalloonTip, TTM_SETTITLEW, TTI_ERROR, (LPARAM)wszTitle);
 268
 269     GetWindowRect(GetDlgItem(hwndDlg, IDC_PASSWORD), &rcPassword);
 270     /* centered vertically and in the right side of the password edit control */
 271     x = rcPassword.right - 12;
 272     y = (rcPassword.top + rcPassword.bottom) / 2;
 273     SendMessageW(params->hwndBalloonTip, TTM_TRACKPOSITION, 0, MAKELONG(x, y));
 274
 275     SendMessageW(params->hwndBalloonTip, TTM_TRACKACTIVATE, TRUE, (LPARAM)&toolinfo);
 276
 277     params->fBalloonTipActive = TRUE;
 278 }
 279
 280 static void CredDialogShowCapsLockBalloon(HWND hwndDlg, struct cred_dialog_params *params)
 281 {
 282     TTTOOLINFOW toolinfo;
 283     RECT rcPassword;
 284     INT x;
 285     INT y;
 286     WCHAR wszTitle[256];
 287
 288     /* don't show two balloon tips at once */
 289     if (params->fBalloonTipActive)
 290         return;
 291
 292     if (!LoadStringW(hinstCredUI, IDS_CAPSLOCKONTITLE, wszTitle, sizeof(wszTitle)/sizeof(wszTitle[0])))
 293     {
 294         ERR("failed to load IDS_IDSCAPSLOCKONTITLE\n");
 295         return;
 296     }
 297
 298     CredDialogCreateBalloonTip(hwndDlg, params);
 299
 300     memset(&toolinfo, 0, sizeof(toolinfo));
 301     toolinfo.cbSize = sizeof(toolinfo);
 302     toolinfo.hwnd = hwndDlg;
 303     toolinfo.uId = TOOLID_CAPSLOCKON;
 304
 305     SendMessageW(params->hwndBalloonTip, TTM_SETTITLEW, TTI_WARNING, (LPARAM)wszTitle);
 306
 307     GetWindowRect(GetDlgItem(hwndDlg, IDC_PASSWORD), &rcPassword);
 308     /* just inside the left side of the password edit control */
 309     x = rcPassword.left + 12;
 310     y = rcPassword.bottom - 3;
 311     SendMessageW(params->hwndBalloonTip, TTM_TRACKPOSITION, 0, MAKELONG(x, y));
 312
 313     SendMessageW(params->hwndBalloonTip, TTM_TRACKACTIVATE, TRUE, (LPARAM)&toolinfo);
 314
 315     SetTimer(hwndDlg, ID_CAPSLOCKPOP,
 316              SendMessageW(params->hwndBalloonTip, TTM_GETDELAYTIME, TTDT_AUTOPOP, 0),
 317              NULL);
 318
 319     params->fBalloonTipActive = TRUE;
 320 }
 321
 322 static void CredDialogHideBalloonTip(HWND hwndDlg, struct cred_dialog_params *params)
 323 {
 324     TTTOOLINFOW toolinfo;
 325
 326     if (!params->hwndBalloonTip)
 327         return;
 328
 329     memset(&toolinfo, 0, sizeof(toolinfo));
 330
 331     toolinfo.cbSize = sizeof(toolinfo);
 332     toolinfo.hwnd = hwndDlg;
 333     toolinfo.uId = 0;
 334     SendMessageW(params->hwndBalloonTip, TTM_TRACKACTIVATE, FALSE, (LPARAM)&toolinfo);
 335     toolinfo.uId = 1;
 336     SendMessageW(params->hwndBalloonTip, TTM_TRACKACTIVATE, FALSE, (LPARAM)&toolinfo);
 337
 338     params->fBalloonTipActive = FALSE;
 339 }
 340
 341 static inline BOOL CredDialogCapsLockOn(void)
 342 {
 343     return (GetKeyState(VK_CAPITAL) & 0x1) != 0;
 344 }
 345
 346 static LRESULT CALLBACK CredDialogPasswordSubclassProc(HWND hwnd, UINT uMsg,
 347     WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
 348 {
 349     struct cred_dialog_params *params = (struct cred_dialog_params *)dwRefData;
 350     switch (uMsg)
 351     {
 352     case WM_KEYDOWN:
 353         if (wParam == VK_CAPITAL)
 354         {
 355             HWND hwndDlg = GetParent(hwnd);
 356             if (CredDialogCapsLockOn())
 357                 CredDialogShowCapsLockBalloon(hwndDlg, params);
 358             else
 359                 CredDialogHideBalloonTip(hwndDlg, params);
 360         }
 361         break;
 362     case WM_DESTROY:
 363         RemoveWindowSubclass(hwnd, CredDialogPasswordSubclassProc, uIdSubclass);
 364         break;
 365     }
 366     return DefSubclassProc(hwnd, uMsg, wParam, lParam);
 367 }
 368
 369 static BOOL CredDialogInit(HWND hwndDlg, struct cred_dialog_params *params)
 370 {
 371     HWND hwndUsername = GetDlgItem(hwndDlg, IDC_USERNAME);
 372     HWND hwndPassword = GetDlgItem(hwndDlg, IDC_PASSWORD);
 373
 374     SetWindowLongPtrW(hwndDlg, DWLP_USER, (LONG_PTR)params);
 375
 376     if (params->hbmBanner)
 377         SendMessageW(GetDlgItem(hwndDlg, IDB_BANNER), STM_SETIMAGE,
 378                      IMAGE_BITMAP, (LPARAM)params->hbmBanner);
 379
 380     if (params->pszMessageText)
 381         SetDlgItemTextW(hwndDlg, IDC_MESSAGE, params->pszMessageText);
 382     else
 383     {
 384         WCHAR format[256];
 385         WCHAR message[256];
 386         LoadStringW(hinstCredUI, IDS_MESSAGEFORMAT, format, sizeof(format)/sizeof(format[0]));
 387         snprintfW(message, sizeof(message)/sizeof(message[0]), format, params->pszTargetName);
 388         SetDlgItemTextW(hwndDlg, IDC_MESSAGE, message);
 389     }
 390     SetWindowTextW(hwndUsername, params->pszUsername);
 391     SetWindowTextW(hwndPassword, params->pszPassword);
 392
 393     CredDialogFillUsernameCombo(hwndUsername, params);
 394
 395     if (params->pszUsername[0])
 396     {
 397         /* prevent showing a balloon tip here */
 398         params->fBalloonTipActive = TRUE;
 399         SetFocus(hwndPassword);
 400         params->fBalloonTipActive = FALSE;
 401     }
 402     else
 403         SetFocus(hwndUsername);
 404
 405     if (params->pszCaptionText)
 406         SetWindowTextW(hwndDlg, params->pszCaptionText);
 407     else
 408     {
 409         WCHAR format[256];
 410         WCHAR title[256];
 411         LoadStringW(hinstCredUI, IDS_TITLEFORMAT, format, sizeof(format)/sizeof(format[0]));
 412         snprintfW(title, sizeof(title)/sizeof(title[0]), format, params->pszTargetName);
 413         SetWindowTextW(hwndDlg, title);
 414     }
 415
 416     if (params->dwFlags & CREDUI_FLAGS_PERSIST ||
 417         (params->dwFlags & CREDUI_FLAGS_DO_NOT_PERSIST &&
 418          !(params->dwFlags & CREDUI_FLAGS_SHOW_SAVE_CHECK_BOX)))
 419         ShowWindow(GetDlgItem(hwndDlg, IDC_SAVE), SW_HIDE);
 420     else if (params->fSave)
 421         CheckDlgButton(hwndDlg, IDC_SAVE, BST_CHECKED);
 422
 423     /* setup subclassing for Caps Lock detection */
 424     SetWindowSubclass(hwndPassword, CredDialogPasswordSubclassProc, 1, (DWORD_PTR)params);
 425
 426     if (params->dwFlags & CREDUI_FLAGS_INCORRECT_PASSWORD)
 427         CredDialogShowIncorrectPasswordBalloon(hwndDlg, params);
 428     else if ((GetFocus() == hwndPassword) && CredDialogCapsLockOn())
 429         CredDialogShowCapsLockBalloon(hwndDlg, params);
 430
 431     return FALSE;
 432 }
 433
 434 static void CredDialogCommandOk(HWND hwndDlg, struct cred_dialog_params *params)
 435 {
 436     HWND hwndUsername = GetDlgItem(hwndDlg, IDC_USERNAME);
 437     LPWSTR user;
 438     INT len;
 439     INT len2;
 440
 441     len = GetWindowTextLengthW(hwndUsername);
 442     user = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
 443     GetWindowTextW(hwndUsername, user, len + 1);
 444
 445     if (!user[0])
 446     {
 447         HeapFree(GetProcessHeap(), 0, user);
 448         return;
 449     }
 450
 451     if (!strchrW(user, '\\') && !strchrW(user, '@'))
 452     {
 453         ULONG len_target = strlenW(params->pszTargetName);
 454         memcpy(params->pszUsername, params->pszTargetName,
 455                min(len_target, params->ulUsernameMaxChars) * sizeof(WCHAR));
 456         if (len_target + 1 < params->ulUsernameMaxChars)
 457             params->pszUsername[len_target] = '\\';
 458         if (len_target + 2 < params->ulUsernameMaxChars)
 459             params->pszUsername[len_target + 1] = '\0';
 460     }
 461     else if (params->ulUsernameMaxChars > 0)
 462         params->pszUsername[0] = '\0';
 463
 464     len2 = strlenW(params->pszUsername);
 465     memcpy(params->pszUsername + len2, user, min(len, params->ulUsernameMaxChars - len2) * sizeof(WCHAR));
 466     if (params->ulUsernameMaxChars)
 467         params->pszUsername[len2 + min(len, params->ulUsernameMaxChars - len2 - 1)] = '\0';
 468
 469     HeapFree(GetProcessHeap(), 0, user);
 470
 471     GetDlgItemTextW(hwndDlg, IDC_PASSWORD, params->pszPassword,
 472                     params->ulPasswordMaxChars);
 473
 474     params->fSave = IsDlgButtonChecked(hwndDlg, IDC_SAVE) == BST_CHECKED;
 475
 476     EndDialog(hwndDlg, IDOK);
 477 }
 478
 479 static INT_PTR CALLBACK CredDialogProc(HWND hwndDlg, UINT uMsg, WPARAM wParam,
 480                                        LPARAM lParam)
 481 {
 482     switch (uMsg)
 483     {
 484         case WM_INITDIALOG:
 485         {
 486             struct cred_dialog_params *params = (struct cred_dialog_params *)lParam;
 487
 488             return CredDialogInit(hwndDlg, params);
 489         }
 490         case WM_COMMAND:
 491             switch (wParam)
 492             {
 493                 case MAKELONG(IDOK, BN_CLICKED):
 494                 {
 495                     struct cred_dialog_params *params =
 496                         (struct cred_dialog_params *)GetWindowLongPtrW(hwndDlg, DWLP_USER);
 497                     CredDialogCommandOk(hwndDlg, params);
 498                     return TRUE;
 499                 }
 500                 case MAKELONG(IDCANCEL, BN_CLICKED):
 501                     EndDialog(hwndDlg, IDCANCEL);
 502                     return TRUE;
 503                 case MAKELONG(IDC_PASSWORD, EN_SETFOCUS):
 504                     if (CredDialogCapsLockOn())
 505                     {
 506                         struct cred_dialog_params *params =
 507                             (struct cred_dialog_params *)GetWindowLongPtrW(hwndDlg, DWLP_USER);
 508                         CredDialogShowCapsLockBalloon(hwndDlg, params);
 509                     }
 510                     /* don't allow another window to steal focus while the
 511                      * user is typing their password */
 512                     LockSetForegroundWindow(LSFW_LOCK);
 513                     return TRUE;
 514                 case MAKELONG(IDC_PASSWORD, EN_KILLFOCUS):
 515                 {
 516                     struct cred_dialog_params *params =
 517                         (struct cred_dialog_params *)GetWindowLongPtrW(hwndDlg, DWLP_USER);
 518                     /* the user is no longer typing their password, so allow
 519                      * other windows to become foreground ones */
 520                     LockSetForegroundWindow(LSFW_UNLOCK);
 521                     CredDialogHideBalloonTip(hwndDlg, params);
 522                     return TRUE;
 523                 }
 524                 case MAKELONG(IDC_PASSWORD, EN_CHANGE):
 525                 {
 526                     struct cred_dialog_params *params =
 527                         (struct cred_dialog_params *)GetWindowLongPtrW(hwndDlg, DWLP_USER);
 528                     CredDialogHideBalloonTip(hwndDlg, params);
 529                     return TRUE;
 530                 }
 531             }
 532             return FALSE;
 533         case WM_TIMER:
 534             if (wParam == ID_CAPSLOCKPOP)
 535             {
 536                 struct cred_dialog_params *params =
 537                     (struct cred_dialog_params *)GetWindowLongPtrW(hwndDlg, DWLP_USER);
 538                 CredDialogHideBalloonTip(hwndDlg, params);
 539                 return TRUE;
 540             }
 541             return FALSE;
 542         case WM_DESTROY:
 543         {
 544             struct cred_dialog_params *params =
 545                 (struct cred_dialog_params *)GetWindowLongPtrW(hwndDlg, DWLP_USER);
 546             if (params->hwndBalloonTip) DestroyWindow(params->hwndBalloonTip);
 547             return TRUE;
 548         }
 549         default:
 550             return FALSE;
 551     }
 552 }
 553
 554 static BOOL find_existing_credential(const WCHAR *target, WCHAR *username, ULONG len_username,
 555                                      WCHAR *password, ULONG len_password)
 556 {
 557     DWORD count, i;
 558     CREDENTIALW **credentials;
 559
 560     if (!CredEnumerateW(target, 0, &count, &credentials)) return FALSE;
 561     for (i = 0; i < count; i++)
 562     {
 563         if (credentials[i]->Type != CRED_TYPE_DOMAIN_PASSWORD)
 564         {
 565             FIXME("no support for type %u credentials\n", credentials[i]->Type);
 566             continue;
 567         }
 568         if ((!*username || !strcmpW(username, credentials[i]->UserName)) &&
 569             strlenW(credentials[i]->UserName) < len_username &&
 570             credentials[i]->CredentialBlobSize / sizeof(WCHAR) < len_password)
 571         {
 572             TRACE("found existing credential for %s\n", debugstr_w(credentials[i]->UserName));
 573
 574             strcpyW(username, credentials[i]->UserName);
 575             memcpy(password, credentials[i]->CredentialBlob, credentials[i]->CredentialBlobSize);
 576             password[credentials[i]->CredentialBlobSize / sizeof(WCHAR)] = 0;
 577
 578             CredFree(credentials);
 579             return TRUE;
 580         }
 581     }
 582     CredFree(credentials);
 583     return FALSE;
 584 }
 585
 586 /******************************************************************************
 587  *           CredUIPromptForCredentialsW [CREDUI.@]
 588  */
 589 DWORD WINAPI CredUIPromptForCredentialsW(PCREDUI_INFOW pUIInfo,
 590                                          PCWSTR pszTargetName,
 591                                          PCtxtHandle Reserved,
 592                                          DWORD dwAuthError,
 593                                          PWSTR pszUsername,
 594                                          ULONG ulUsernameMaxChars,
 595                                          PWSTR pszPassword,
 596                                          ULONG ulPasswordMaxChars, PBOOL pfSave,
 597                                          DWORD dwFlags)
 598 {
 599     INT_PTR ret;
 600     struct cred_dialog_params params;
 601     DWORD result = ERROR_SUCCESS;
 602
 603     TRACE("(%p, %s, %p, %d, %s, %d, %p, %d, %p, 0x%08x)\n", pUIInfo,
 604           debugstr_w(pszTargetName), Reserved, dwAuthError, debugstr_w(pszUsername),
 605           ulUsernameMaxChars, pszPassword, ulPasswordMaxChars, pfSave, dwFlags);
 606
 607     if ((dwFlags & (CREDUI_FLAGS_ALWAYS_SHOW_UI|CREDUI_FLAGS_GENERIC_CREDENTIALS)) == CREDUI_FLAGS_ALWAYS_SHOW_UI)
 608         return ERROR_INVALID_FLAGS;
 609
 610     if (!pszTargetName)
 611         return ERROR_INVALID_PARAMETER;
 612
 613     if ((dwFlags & CREDUI_FLAGS_SHOW_SAVE_CHECK_BOX) && !pfSave)
 614         return ERROR_INVALID_PARAMETER;
 615
 616     if (!(dwFlags & CREDUI_FLAGS_ALWAYS_SHOW_UI) &&
 617         !(dwFlags & CREDUI_FLAGS_INCORRECT_PASSWORD) &&
 618         find_existing_credential(pszTargetName, pszUsername, ulUsernameMaxChars, pszPassword, ulPasswordMaxChars))
 619         return ERROR_SUCCESS;
 620
 621     params.pszTargetName = pszTargetName;
 622     if (pUIInfo)
 623     {
 624         params.pszMessageText = pUIInfo->pszMessageText;
 625         params.pszCaptionText = pUIInfo->pszCaptionText;
 626         params.hbmBanner  = pUIInfo->hbmBanner;
 627     }
 628     else
 629     {
 630         params.pszMessageText = NULL;
 631         params.pszCaptionText = NULL;
 632         params.hbmBanner = NULL;
 633     }
 634     params.pszUsername = pszUsername;
 635     params.ulUsernameMaxChars = ulUsernameMaxChars;
 636     params.pszPassword = pszPassword;
 637     params.ulPasswordMaxChars = ulPasswordMaxChars;
 638     params.fSave = pfSave ? *pfSave : FALSE;
 639     params.dwFlags = dwFlags;
 640     params.hwndBalloonTip = NULL;
 641     params.fBalloonTipActive = FALSE;
 642
 643     ret = DialogBoxParamW(hinstCredUI, MAKEINTRESOURCEW(IDD_CREDDIALOG),
 644                           pUIInfo ? pUIInfo->hwndParent : NULL,
 645                           CredDialogProc, (LPARAM)&params);
 646     if (ret <= 0)
 647         return GetLastError();
 648
 649     if (ret == IDCANCEL)
 650     {
 651         TRACE("dialog cancelled\n");
 652         return ERROR_CANCELLED;
 653     }
 654
 655     if (pfSave)
 656         *pfSave = params.fSave;
 657
 658     if (params.fSave)
 659     {
 660         if (dwFlags & CREDUI_FLAGS_EXPECT_CONFIRMATION)
 661         {
 662             BOOL found = FALSE;
 663             struct pending_credentials *entry;
 664             int len;
 665
 666             EnterCriticalSection(&csPendingCredentials);
 667
 668             /* find existing pending credentials for the same target and overwrite */
 669             /* FIXME: is this correct? */
 670             LIST_FOR_EACH_ENTRY(entry, &pending_credentials_list, struct pending_credentials, entry)
 671                 if (!strcmpW(pszTargetName, entry->pszTargetName))
 672                 {
 673                     found = TRUE;
 674                     HeapFree(GetProcessHeap(), 0, entry->pszUsername);
 675                     ZeroMemory(entry->pszPassword, (strlenW(entry->pszPassword) + 1) * sizeof(WCHAR));
 676                     HeapFree(GetProcessHeap(), 0, entry->pszPassword);
 677                 }
 678
 679             if (!found)
 680             {
 681                 entry = HeapAlloc(GetProcessHeap(), 0, sizeof(*entry));
 682                 len = strlenW(pszTargetName);
 683                 entry->pszTargetName = HeapAlloc(GetProcessHeap(), 0, (len + 1)*sizeof(WCHAR));
 684                 memcpy(entry->pszTargetName, pszTargetName, (len + 1)*sizeof(WCHAR));
 685                 list_add_tail(&pending_credentials_list, &entry->entry);
 686             }
 687
 688             len = strlenW(params.pszUsername);
 689             entry->pszUsername = HeapAlloc(GetProcessHeap(), 0, (len + 1)*sizeof(WCHAR));
 690             memcpy(entry->pszUsername, params.pszUsername, (len + 1)*sizeof(WCHAR));
 691             len = strlenW(params.pszPassword);
 692             entry->pszPassword = HeapAlloc(GetProcessHeap(), 0, (len + 1)*sizeof(WCHAR));
 693             memcpy(entry->pszPassword, params.pszPassword, (len + 1)*sizeof(WCHAR));
 694             entry->generic = (dwFlags & CREDUI_FLAGS_GENERIC_CREDENTIALS) != 0;
 695
 696             LeaveCriticalSection(&csPendingCredentials);
 697         }
 698         else if (!(dwFlags & CREDUI_FLAGS_DO_NOT_PERSIST))
 699             result = save_credentials(pszTargetName, pszUsername, pszPassword,
 700                                       (dwFlags & CREDUI_FLAGS_GENERIC_CREDENTIALS) != 0);
 701     }
 702
 703     return result;
 704 }
 705
 706 /******************************************************************************
 707  *           CredUIConfirmCredentialsW [CREDUI.@]
 708  */
 709 DWORD WINAPI CredUIConfirmCredentialsW(PCWSTR pszTargetName, BOOL bConfirm)
 710 {
 711     struct pending_credentials *entry;
 712     DWORD result = ERROR_NOT_FOUND;
 713
 714     TRACE("(%s, %s)\n", debugstr_w(pszTargetName), bConfirm ? "TRUE" : "FALSE");
 715
 716     if (!pszTargetName)
 717         return ERROR_INVALID_PARAMETER;
 718
 719     EnterCriticalSection(&csPendingCredentials);
 720
 721     LIST_FOR_EACH_ENTRY(entry, &pending_credentials_list, struct pending_credentials, entry)
 722     {
 723         if (!strcmpW(pszTargetName, entry->pszTargetName))
 724         {
 725             if (bConfirm)
 726                 result = save_credentials(entry->pszTargetName, entry->pszUsername,
 727                                           entry->pszPassword, entry->generic);
 728             else
 729                 result = ERROR_SUCCESS;
 730
 731             list_remove(&entry->entry);
 732
 733             HeapFree(GetProcessHeap(), 0, entry->pszTargetName);
 734             HeapFree(GetProcessHeap(), 0, entry->pszUsername);
 735             ZeroMemory(entry->pszPassword, (strlenW(entry->pszPassword) + 1) * sizeof(WCHAR));
 736             HeapFree(GetProcessHeap(), 0, entry->pszPassword);
 737             HeapFree(GetProcessHeap(), 0, entry);
 738
 739             break;
 740         }
 741     }
 742
 743     LeaveCriticalSection(&csPendingCredentials);
 744
 745     return result;
 746 }
 747
 748 /******************************************************************************
 749  *           CredUIParseUserNameW [CREDUI.@]
 750  */
 751 DWORD WINAPI CredUIParseUserNameW(PCWSTR pszUserName, PWSTR pszUser,
 752                                   ULONG ulMaxUserChars, PWSTR pszDomain,
 753                                   ULONG ulMaxDomainChars)
 754 {
 755     PWSTR p;
 756
 757     TRACE("(%s, %p, %d, %p, %d)\n", debugstr_w(pszUserName), pszUser,
 758           ulMaxUserChars, pszDomain, ulMaxDomainChars);
 759
 760     if (!pszUserName || !pszUser || !ulMaxUserChars || !pszDomain ||
 761         !ulMaxDomainChars)
 762         return ERROR_INVALID_PARAMETER;
 763
 764     /* FIXME: handle marshaled credentials */
 765
 766     p = strchrW(pszUserName, '\\');
 767     if (p)
 768     {
 769         if (p - pszUserName > ulMaxDomainChars - 1)
 770             return ERROR_INSUFFICIENT_BUFFER;
 771         if (strlenW(p + 1) > ulMaxUserChars - 1)
 772             return ERROR_INSUFFICIENT_BUFFER;
 773         strcpyW(pszUser, p + 1);
 774         memcpy(pszDomain, pszUserName, (p - pszUserName)*sizeof(WCHAR));
 775         pszDomain[p - pszUserName] = '\0';
 776
 777         return ERROR_SUCCESS;
 778     }
 779
 780     p = strrchrW(pszUserName, '@');
 781     if (p)
 782     {
 783         if (p + 1 - pszUserName > ulMaxUserChars - 1)
 784             return ERROR_INSUFFICIENT_BUFFER;
 785         if (strlenW(p + 1) > ulMaxDomainChars - 1)
 786             return ERROR_INSUFFICIENT_BUFFER;
 787         strcpyW(pszDomain, p + 1);
 788         memcpy(pszUser, pszUserName, (p - pszUserName)*sizeof(WCHAR));
 789         pszUser[p - pszUserName] = '\0';
 790
 791         return ERROR_SUCCESS;
 792     }
 793
 794     if (strlenW(pszUserName) > ulMaxUserChars - 1)
 795         return ERROR_INSUFFICIENT_BUFFER;
 796     strcpyW(pszUser, pszUserName);
 797     pszDomain[0] = '\0';
 798
 799     return ERROR_SUCCESS;
 800 }
 801
 802 /******************************************************************************
 803  *           CredUIStoreSSOCredA [CREDUI.@]
 804  */
 805 DWORD WINAPI CredUIStoreSSOCredA(PCSTR pszRealm, PCSTR pszUsername,
 806                                  PCSTR pszPassword, BOOL bPersist)
 807 {
 808     FIXME("(%s, %s, %p, %d)\n", debugstr_a(pszRealm), debugstr_a(pszUsername),
 809           pszPassword, bPersist);
 810     return ERROR_SUCCESS;
 811 }
 812
 813 /******************************************************************************
 814  *           CredUIStoreSSOCredW [CREDUI.@]
 815  */
 816 DWORD WINAPI CredUIStoreSSOCredW(PCWSTR pszRealm, PCWSTR pszUsername,
 817                                  PCWSTR pszPassword, BOOL bPersist)
 818 {
 819     FIXME("(%s, %s, %p, %d)\n", debugstr_w(pszRealm), debugstr_w(pszUsername),
 820           pszPassword, bPersist);
 821     return ERROR_SUCCESS;
 822 }
 823
 824 /******************************************************************************
 825  *           CredUIReadSSOCredA [CREDUI.@]
 826  */
 827 DWORD WINAPI CredUIReadSSOCredA(PCSTR pszRealm, PSTR *ppszUsername)
 828 {
 829     FIXME("(%s, %p)\n", debugstr_a(pszRealm), ppszUsername);
 830     if (ppszUsername)
 831         *ppszUsername = NULL;
 832     return ERROR_NOT_FOUND;
 833 }
 834
 835 /******************************************************************************
 836  *           CredUIReadSSOCredW [CREDUI.@]
 837  */
 838 DWORD WINAPI CredUIReadSSOCredW(PCWSTR pszRealm, PWSTR *ppszUsername)
 839 {
 840     FIXME("(%s, %p)\n", debugstr_w(pszRealm), ppszUsername);
 841     if (ppszUsername)
 842         *ppszUsername = NULL;
 843     return ERROR_NOT_FOUND;
 844 }
 845
 846 /******************************************************************************
 847  * CredUIInitControls [CREDUI.@]
 848  */
 849 BOOL WINAPI CredUIInitControls(void)
 850 {
 851     FIXME("() stub\n");
 852     return TRUE;
 853 }