reactos/base/applications/rapps/loaddlg.c

   1 /* PROJECT:     ReactOS Applications Manager
   2  * LICENSE:     GPL - See COPYING in the top level directory
   3  * FILE:        base/applications/rapps/loaddlg.c
   4  * PURPOSE:     Displaying a download dialog
   5  * COPYRIGHT:   Copyright 2001 John R. Sheets (for CodeWeavers)
   6  *              Copyright 2004 Mike McCormack (for CodeWeavers)
   7  *              Copyright 2005 Ge van Geldorp (gvg@reactos.org)
   8  *              Copyright 2009 Dmitry Chapyshev (dmitry@reactos.org)
   9  *              Copyright 2015 Ismael Ferreras Morezuelas (swyterzone+ros@gmail.com)
  10  */
  11 /*
  12  * Based on Wine dlls/shdocvw/shdocvw_main.c
  13  *
  14  * This library is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU Lesser General Public
  16  * License as published by the Free Software Foundation; either
  17  * version 2.1 of the License, or (at your option) any later version.
  18  *
  19  * This library is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22  * Lesser General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Lesser General Public
  25  * License along with this library; if not, write to the Free Software
  26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  27  */
  28
  29 #include "rapps.h"
  30 #include <wininet.h>
  31 #include <shellapi.h>
  32 #include <windowsx.h>
  33
  34 static PAPPLICATION_INFO AppInfo;
  35
  36 typedef struct _IBindStatusCallbackImpl
  37 {
  38     const IBindStatusCallbackVtbl *vtbl;
  39     LONG ref;
  40     HWND hDialog;
  41     BOOL *pbCancelled;
  42     BOOL UrlHasBeenCopied;
  43     WCHAR ProgressText[MAX_PATH];
  44 } IBindStatusCallbackImpl;
  45
  46 static
  47 HRESULT WINAPI
  48 dlQueryInterface(IBindStatusCallback* This, REFIID riid, void** ppvObject)
  49 {
  50     if (!ppvObject) return E_POINTER;
  51
  52     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IBindStatusCallback))
  53     {
  54         IBindStatusCallback_AddRef(This);
  55         *ppvObject = This;
  56         return S_OK;
  57     }
  58
  59     return E_NOINTERFACE;
  60 }
  61
  62 static
  63 ULONG WINAPI
  64 dlAddRef(IBindStatusCallback* iface)
  65 {
  66     IBindStatusCallbackImpl *This = (IBindStatusCallbackImpl*) iface;
  67     return InterlockedIncrement(&This->ref);
  68 }
  69
  70 static
  71 ULONG WINAPI
  72 dlRelease(IBindStatusCallback* iface)
  73 {
  74     IBindStatusCallbackImpl *This = (IBindStatusCallbackImpl*) iface;
  75     DWORD ref = InterlockedDecrement(&This->ref);
  76
  77     if (!ref)
  78     {
  79         DestroyWindow(This->hDialog);
  80         HeapFree(GetProcessHeap(), 0, This);
  81     }
  82
  83     return ref;
  84 }
  85
  86 static
  87 HRESULT WINAPI
  88 dlOnStartBinding(IBindStatusCallback* iface, DWORD dwReserved, IBinding* pib)
  89 {
  90     return S_OK;
  91 }
  92
  93 static
  94 HRESULT WINAPI
  95 dlGetPriority(IBindStatusCallback* iface, LONG* pnPriority)
  96 {
  97     return S_OK;
  98 }
  99
 100 static
 101 HRESULT WINAPI
 102 dlOnLowResource( IBindStatusCallback* iface, DWORD reserved)
 103 {
 104     return S_OK;
 105 }
 106
 107 static
 108 HRESULT WINAPI
 109 dlOnProgress(IBindStatusCallback* iface,
 110              ULONG ulProgress,
 111              ULONG ulProgressMax,
 112              ULONG ulStatusCode,
 113              LPCWSTR szStatusText)
 114 {
 115     IBindStatusCallbackImpl *This = (IBindStatusCallbackImpl *) iface;
 116     HWND Item;
 117     LONG r;
 118
 119     Item = GetDlgItem(This->hDialog, IDC_DOWNLOAD_PROGRESS);
 120     if (Item && ulProgressMax)
 121     {
 122         WCHAR szProgress[100];
 123         WCHAR szProgressMax[100];
 124         UINT uiPercentage = ((ULONGLONG)ulProgress * 100) / ulProgressMax;
 125
 126         /* send the current progress to the progress bar */
 127         SendMessageW(Item, PBM_SETPOS, uiPercentage, 0);
 128
 129         /* format the bits and bytes into pretty and accesible units... */
 130         StrFormatByteSizeW(ulProgress, szProgress, _countof(szProgress));
 131         StrFormatByteSizeW(ulProgressMax, szProgressMax, _countof(szProgressMax));
 132
 133         /* ...and post all of it to our subclassed progress bar text subroutine */
 134         StringCbPrintfW(This->ProgressText,
 135                         sizeof(This->ProgressText),
 136                         L"%u%% \x2014 %ls / %ls",
 137                         uiPercentage,
 138                         szProgress,
 139                         szProgressMax);
 140         SendMessageW(Item, WM_SETTEXT, 0, (LPARAM)This->ProgressText);
 141     }
 142
 143     Item = GetDlgItem(This->hDialog, IDC_DOWNLOAD_STATUS);
 144     if (Item && szStatusText && wcslen(szStatusText) > 0 && This->UrlHasBeenCopied == FALSE)
 145     {
 146         DWORD len = wcslen(szStatusText) * sizeof(WCHAR);
 147         PWSTR buf = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 148
 149         if (buf)
 150         {
 151             /* beautify our url for display purposes */
 152             InternetCanonicalizeUrl(szStatusText, buf, &len, ICU_DECODE | ICU_NO_ENCODE);
 153
 154             /* paste it into our dialog, free the temp buffer
 155                and don't do it again in this instance */
 156             SendMessageW(Item, WM_SETTEXT, 0, (LPARAM)buf);
 157             HeapFree(GetProcessHeap(), 0, buf);
 158         }
 159         else
 160         {
 161             /* our computer is old and rusty and does not have enough ram for this,
 162                use the ugly version and call it a day */
 163             SendMessageW(Item, WM_SETTEXT, 0, (LPARAM)szStatusText);
 164         }
 165
 166         This->UrlHasBeenCopied = TRUE;
 167     }
 168
 169     SetLastError(0);
 170     r = GetWindowLongPtrW(This->hDialog, GWLP_USERDATA);
 171     if (0 != r || 0 != GetLastError())
 172     {
 173         *This->pbCancelled = TRUE;
 174         return E_ABORT;
 175     }
 176
 177     return S_OK;
 178 }
 179
 180 static
 181 HRESULT WINAPI
 182 dlOnStopBinding(IBindStatusCallback* iface, HRESULT hresult, LPCWSTR szError)
 183 {
 184     return S_OK;
 185 }
 186
 187 static
 188 HRESULT WINAPI
 189 dlGetBindInfo(IBindStatusCallback* iface, DWORD* grfBINDF, BINDINFO* pbindinfo)
 190 {
 191     return S_OK;
 192 }
 193
 194 static
 195 HRESULT WINAPI
 196 dlOnDataAvailable(IBindStatusCallback* iface, DWORD grfBSCF,
 197                 DWORD dwSize, FORMATETC* pformatetc, STGMEDIUM* pstgmed)
 198 {
 199     return S_OK;
 200 }
 201
 202 static
 203 HRESULT WINAPI
 204 dlOnObjectAvailable(IBindStatusCallback* iface, REFIID riid, IUnknown* punk)
 205 {
 206     return S_OK;
 207 }
 208
 209 static const IBindStatusCallbackVtbl dlVtbl =
 210 {
 211     dlQueryInterface,
 212     dlAddRef,
 213     dlRelease,
 214     dlOnStartBinding,
 215     dlGetPriority,
 216     dlOnLowResource,
 217     dlOnProgress,
 218     dlOnStopBinding,
 219     dlGetBindInfo,
 220     dlOnDataAvailable,
 221     dlOnObjectAvailable
 222 };
 223
 224 static IBindStatusCallback*
 225 CreateDl(HWND Dlg, BOOL *pbCancelled)
 226 {
 227     IBindStatusCallbackImpl *This;
 228
 229     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IBindStatusCallbackImpl));
 230     if (!This)
 231         return NULL;
 232
 233     This->vtbl = &dlVtbl;
 234     This->ref = 1;
 235     This->hDialog = Dlg;
 236     This->pbCancelled = pbCancelled;
 237
 238     return (IBindStatusCallback*) This;
 239 }
 240
 241 #ifdef USE_CERT_PINNING
 242 static BOOL CertIsValid(HINTERNET hInternet, LPWSTR lpszHostName)
 243 {
 244     HINTERNET hConnect;
 245     HINTERNET hRequest;
 246     DWORD certInfoLength;
 247     BOOL Ret = FALSE;
 248     INTERNET_CERTIFICATE_INFOW certInfo;
 249
 250     hConnect = InternetConnectW(hInternet, lpszHostName, INTERNET_DEFAULT_HTTPS_PORT, NULL, NULL, INTERNET_SERVICE_HTTP, INTERNET_FLAG_SECURE, 0);
 251     if (hConnect)
 252     {
 253         hRequest = HttpOpenRequestW(hConnect, L"HEAD", NULL, NULL, NULL, NULL, INTERNET_FLAG_SECURE, 0);
 254         if (hRequest != NULL)
 255         {
 256             Ret = HttpSendRequestW(hRequest, L"", 0, NULL, 0);
 257             if (Ret)
 258             {
 259                 certInfoLength = sizeof(INTERNET_CERTIFICATE_INFOW);
 260                 Ret = InternetQueryOptionW(hRequest,
 261                                            INTERNET_OPTION_SECURITY_CERTIFICATE_STRUCT,
 262                                            &certInfo,
 263                                            &certInfoLength);
 264                 if (Ret)
 265                 {
 266                     if (certInfo.lpszEncryptionAlgName)
 267                         LocalFree(certInfo.lpszEncryptionAlgName);
 268                     if (certInfo.lpszIssuerInfo)
 269                     {
 270                         if (strcmp((LPSTR)certInfo.lpszIssuerInfo, CERT_ISSUER_INFO) != 0)
 271                             Ret = FALSE;
 272                         LocalFree(certInfo.lpszIssuerInfo);
 273                     }
 274                     if (certInfo.lpszProtocolName)
 275                         LocalFree(certInfo.lpszProtocolName);
 276                     if (certInfo.lpszSignatureAlgName)
 277                         LocalFree(certInfo.lpszSignatureAlgName);
 278                     if (certInfo.lpszSubjectInfo)
 279                     {
 280                         if (strcmp((LPSTR)certInfo.lpszSubjectInfo, CERT_SUBJECT_INFO) != 0)
 281                             Ret = FALSE;
 282                         LocalFree(certInfo.lpszSubjectInfo);
 283                     }
 284                 }
 285             }
 286             InternetCloseHandle(hRequest);
 287         }
 288     }
 289     return Ret;
 290 }
 291 #endif
 292
 293 static
 294 DWORD WINAPI
 295 ThreadFunc(LPVOID Context)
 296 {
 297     IBindStatusCallback *dl = NULL;
 298     WCHAR path[MAX_PATH];
 299     PWSTR p, q;
 300     HWND Dlg = (HWND) Context;
 301     DWORD dwContentLen, dwBytesWritten, dwBytesRead, dwStatus;
 302     DWORD dwCurrentBytesRead = 0;
 303     DWORD dwStatusLen = sizeof(dwStatus);
 304     BOOL bCancelled = FALSE;
 305     BOOL bTempfile = FALSE;
 306     BOOL bCab = FALSE;
 307     HINTERNET hOpen = NULL;
 308     HINTERNET hFile = NULL;
 309     HANDLE hOut = INVALID_HANDLE_VALUE;
 310     unsigned char lpBuffer[4096];
 311     const LPWSTR lpszAgent = L"RApps/1.0";
 312     URL_COMPONENTS urlComponents;
 313     size_t urlLength, filenameLength;
 314
 315     /* build the path for the download */
 316     p = wcsrchr(AppInfo->szUrlDownload, L'/');
 317     q = wcsrchr(AppInfo->szUrlDownload, L'?');
 318
 319     /* do we have a final slash separator? */
 320     if (!p)
 321         goto end;
 322
 323     /* prepare the tentative length of the filename, maybe we've to remove part of it later on */
 324     filenameLength = wcslen(p) * sizeof(WCHAR);
 325
 326     /* do we have query arguments in the target URL after the filename? account for them
 327       (e.g. https://example.org/myfile.exe?no_adware_plz) */
 328     if (q && q > p && (q - p) > 0)
 329         filenameLength -= wcslen(q - 1) * sizeof(WCHAR);
 330
 331     /* is this URL an update package for RAPPS? if so store it in a different place */
 332     if (wcscmp(AppInfo->szUrlDownload, APPLICATION_DATABASE_URL) == 0)
 333     {
 334         bCab = TRUE;
 335         if (!GetStorageDirectory(path, _countof(path)))
 336             goto end;
 337     }
 338     else
 339     {
 340         if (FAILED(StringCbCopyW(path, sizeof(path),  SettingsInfo.szDownloadDir)))
 341             goto end;
 342     }
 343
 344     /* is the path valid? can we access it? */
 345     if (GetFileAttributesW(path) == INVALID_FILE_ATTRIBUTES)
 346     {
 347         if (!CreateDirectoryW(path, NULL))
 348             goto end;
 349     }
 350
 351     /* append a \ to the provided file system path, and the filename portion from the URL after that */
 352     if (FAILED(StringCbCatW(path, sizeof(path), L"\\")))
 353         goto end;
 354     if (FAILED(StringCbCatNW(path, sizeof(path), p + 1, filenameLength)))
 355         goto end;
 356
 357     /* create an async download context for it */
 358     bTempfile = TRUE;
 359     dl = CreateDl(Context, &bCancelled);
 360
 361     if (dl == NULL)
 362         goto end;
 363
 364     /* FIXME: this should just be using the system-wide proxy settings */
 365     switch(SettingsInfo.Proxy)
 366     {
 367         case 0: /* preconfig */
 368             hOpen = InternetOpenW(lpszAgent, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
 369             break;
 370         case 1: /* direct (no proxy) */
 371             hOpen = InternetOpenW(lpszAgent, INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0);
 372             break;
 373         case 2: /* use proxy */
 374             hOpen = InternetOpenW(lpszAgent, INTERNET_OPEN_TYPE_PROXY, SettingsInfo.szProxyServer, SettingsInfo.szNoProxyFor, 0);
 375             break;
 376         default: /* preconfig */
 377             hOpen = InternetOpenW(lpszAgent, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
 378             break;
 379     }
 380
 381     if (!hOpen)
 382         goto end;
 383
 384     hFile = InternetOpenUrlW(hOpen, AppInfo->szUrlDownload, NULL, 0, INTERNET_FLAG_PRAGMA_NOCACHE | INTERNET_FLAG_KEEP_CONNECTION, 0);
 385     if (!hFile)
 386         goto end;
 387
 388     if (!HttpQueryInfoW(hFile, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &dwStatus, &dwStatusLen, NULL))
 389         goto end;
 390
 391     if(dwStatus != HTTP_STATUS_OK)
 392     {
 393         WCHAR szMsgText[MAX_STR_LEN];
 394
 395         if (!LoadStringW(hInst, IDS_UNABLE_TO_DOWNLOAD, szMsgText, sizeof(szMsgText) / sizeof(WCHAR)))
 396             goto end;
 397
 398         MessageBoxW(hMainWnd, szMsgText, NULL, MB_OK | MB_ICONERROR);
 399         goto end;
 400     }
 401
 402     dwStatusLen = sizeof(dwStatus);
 403
 404     memset(&urlComponents, 0, sizeof(urlComponents));
 405     urlComponents.dwStructSize = sizeof(urlComponents);
 406
 407     if(FAILED(StringCbLengthW(AppInfo->szUrlDownload, sizeof(AppInfo->szUrlDownload), &urlLength)))
 408         goto end;
 409
 410     urlComponents.dwSchemeLength = urlLength*sizeof(WCHAR);
 411     urlComponents.lpszScheme = malloc(urlComponents.dwSchemeLength);
 412     urlComponents.dwHostNameLength = urlLength*sizeof(WCHAR);
 413     urlComponents.lpszHostName = malloc(urlComponents.dwHostNameLength);
 414
 415     if(!InternetCrackUrlW(AppInfo->szUrlDownload, urlLength+1, ICU_DECODE | ICU_ESCAPE, &urlComponents))
 416         goto end;
 417
 418     if(urlComponents.nScheme == INTERNET_SCHEME_HTTP || urlComponents.nScheme == INTERNET_SCHEME_HTTPS)
 419         HttpQueryInfo(hFile, HTTP_QUERY_CONTENT_LENGTH | HTTP_QUERY_FLAG_NUMBER, &dwContentLen, &dwStatus, 0);
 420
 421     if(urlComponents.nScheme == INTERNET_SCHEME_FTP)
 422         dwContentLen = FtpGetFileSize(hFile, &dwStatus);
 423
 424 #ifdef USE_CERT_PINNING
 425     /* are we using HTTPS to download the RAPPS update package? check if the certificate is original */
 426     if ((urlComponents.nScheme == INTERNET_SCHEME_HTTPS) &&
 427         (wcscmp(AppInfo->szUrlDownload, APPLICATION_DATABASE_URL) == 0) &&
 428         (!CertIsValid(hOpen, urlComponents.lpszHostName)))
 429     {
 430         WCHAR szMsgText[MAX_STR_LEN];
 431
 432         if (!LoadStringW(hInst, IDS_CERT_DOES_NOT_MATCH, szMsgText, sizeof(szMsgText) / sizeof(WCHAR)))
 433             goto end;
 434
 435         MessageBoxW(Dlg, szMsgText, NULL, MB_OK | MB_ICONERROR);
 436         goto end;
 437     }
 438 #endif
 439
 440     free(urlComponents.lpszScheme);
 441     free(urlComponents.lpszHostName);
 442
 443     hOut = CreateFileW(path, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, 0, NULL);
 444
 445     if (hOut == INVALID_HANDLE_VALUE)
 446         goto end;
 447
 448     do
 449     {
 450         if (!InternetReadFile(hFile, lpBuffer, _countof(lpBuffer), &dwBytesRead)) goto end;
 451         if (!WriteFile(hOut, &lpBuffer[0], dwBytesRead, &dwBytesWritten, NULL)) goto end;
 452         dwCurrentBytesRead += dwBytesRead;
 453         IBindStatusCallback_OnProgress(dl, dwCurrentBytesRead, dwContentLen, 0, AppInfo->szUrlDownload);
 454     }
 455     while (dwBytesRead && !bCancelled);
 456
 457     CloseHandle(hOut);
 458     hOut = INVALID_HANDLE_VALUE;
 459
 460     if (bCancelled)
 461         goto end;
 462
 463     ShowWindow(Dlg, SW_HIDE);
 464
 465     /* run it */
 466     if (!bCab)
 467         ShellExecuteW( NULL, L"open", path, NULL, NULL, SW_SHOWNORMAL );
 468
 469 end:
 470     if (hOut != INVALID_HANDLE_VALUE)
 471         CloseHandle(hOut);
 472
 473     InternetCloseHandle(hFile);
 474     InternetCloseHandle(hOpen);
 475
 476     if (dl)
 477         IBindStatusCallback_Release(dl);
 478
 479     if (bTempfile)
 480     {
 481         if (bCancelled || (SettingsInfo.bDelInstaller && !bCab))
 482             DeleteFileW(path);
 483     }
 484
 485     EndDialog(Dlg, 0);
 486
 487     return 0;
 488 }
 489
 490
 491 LRESULT CALLBACK
 492 DownloadProgressProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
 493 {
 494     static WCHAR szProgressText[MAX_STR_LEN] = {0};
 495
 496     switch (uMsg)
 497     {
 498         case WM_SETTEXT:
 499         {
 500             if (lParam)
 501             {
 502                 StringCbCopyW(szProgressText,
 503                               sizeof(szProgressText),
 504                               (PCWSTR)lParam);
 505             }
 506         }
 507
 508         case WM_ERASEBKGND:
 509         case WM_PAINT:
 510         {
 511             PAINTSTRUCT  ps;
 512             HDC hDC = BeginPaint(hWnd, &ps), hdcMem;
 513             HBITMAP hbmMem;
 514             HANDLE hOld;
 515             RECT myRect;
 516             UINT win_width, win_height;
 517
 518             GetClientRect(hWnd, &myRect);
 519
 520             /* grab the progress bar rect size */
 521             win_width  = myRect.right - myRect.left;
 522             win_height = myRect.bottom - myRect.top;
 523
 524             /* create an off-screen DC for double-buffering */
 525             hdcMem = CreateCompatibleDC(hDC);
 526             hbmMem = CreateCompatibleBitmap(hDC, win_width, win_height);
 527
 528             hOld = SelectObject(hdcMem, hbmMem);
 529
 530             /* call the original draw code and redirect it to our memory buffer */
 531             DefSubclassProc(hWnd, uMsg, (WPARAM)hdcMem, lParam);
 532
 533             /* draw our nifty progress text over it */
 534             SelectFont(hdcMem, GetStockFont(DEFAULT_GUI_FONT));
 535             DrawShadowText(hdcMem, szProgressText, wcslen(szProgressText),
 536                            &myRect,
 537                            DT_CENTER | DT_VCENTER | DT_NOPREFIX | DT_SINGLELINE,
 538                            GetSysColor(COLOR_CAPTIONTEXT),
 539                            GetSysColor(COLOR_3DSHADOW),
 540                            1, 1);
 541
 542             /* transfer the off-screen DC to the screen */
 543             BitBlt(hDC, 0, 0, win_width, win_height, hdcMem, 0, 0, SRCCOPY);
 544
 545             /* free the off-screen DC */
 546             SelectObject(hdcMem, hOld);
 547             DeleteObject(hbmMem);
 548             DeleteDC(hdcMem);
 549
 550             EndPaint(hWnd, &ps);
 551             return 0;
 552         }
 553
 554         /* Raymond Chen says that we should safely unsubclass all the things!
 555           (http://blogs.msdn.com/b/oldnewthing/archive/2003/11/11/55653.aspx) */
 556         case WM_NCDESTROY:
 557         {
 558             ZeroMemory(szProgressText, sizeof(szProgressText));
 559             RemoveWindowSubclass(hWnd, DownloadProgressProc, uIdSubclass);
 560         }
 561
 562         default:
 563             return DefSubclassProc(hWnd, uMsg, wParam, lParam);
 564     }
 565 }
 566
 567 static
 568 INT_PTR CALLBACK
 569 DownloadDlgProc(HWND Dlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 570 {
 571     HANDLE Thread;
 572     DWORD ThreadId;
 573     HWND Item;
 574
 575     switch (uMsg)
 576     {
 577         case WM_INITDIALOG:
 578         {
 579             HICON hIconSm = NULL, hIconBg = NULL;
 580
 581             hIconBg = (HICON)GetClassLongPtr(hMainWnd, GCLP_HICON);
 582             hIconSm = (HICON)GetClassLongPtr(hMainWnd, GCLP_HICONSM);
 583
 584             if (hIconBg && hIconSm)
 585             {
 586                 SendMessageW(Dlg, WM_SETICON, ICON_BIG, (LPARAM) hIconBg);
 587                 SendMessageW(Dlg, WM_SETICON, ICON_SMALL, (LPARAM) hIconSm);
 588             }
 589
 590             SetWindowLongPtrW(Dlg, GWLP_USERDATA, 0);
 591             Item = GetDlgItem(Dlg, IDC_DOWNLOAD_PROGRESS);
 592             if (Item)
 593             {
 594                 /* initialize the default values for our nifty progress bar
 595                    and subclass it so that it learns to print a status text */
 596                 SendMessageW(Item, PBM_SETRANGE, 0, MAKELPARAM(0, 100));
 597                 SendMessageW(Item, PBM_SETPOS, 0, 0);
 598
 599                 SetWindowSubclass(Item, DownloadProgressProc, 0, 0);
 600             }
 601
 602             /* add a neat placeholder until the download URL is retrieved */
 603             Item = GetDlgItem(Dlg, IDC_DOWNLOAD_STATUS);
 604             SendMessageW(Item, WM_SETTEXT, 0, (LPARAM)L"\x2022 \x2022 \x2022");
 605
 606             Thread = CreateThread(NULL, 0, ThreadFunc, Dlg, 0, &ThreadId);
 607             if (!Thread)
 608                 return FALSE;
 609
 610             CloseHandle(Thread);
 611             return TRUE;
 612         }
 613         case WM_COMMAND:
 614             if (wParam == IDCANCEL)
 615             {
 616                 SetWindowLongPtrW(Dlg, GWLP_USERDATA, 1);
 617                 PostMessageW(Dlg, WM_CLOSE, 0, 0);
 618             }
 619             return FALSE;
 620
 621         case WM_CLOSE:
 622             EndDialog(Dlg, 0);
 623             return TRUE;
 624
 625         default:
 626             return FALSE;
 627     }
 628 }
 629
 630 BOOL
 631 DownloadApplication(INT Index)
 632 {
 633     if (!IS_AVAILABLE_ENUM(SelectedEnumType))
 634         return FALSE;
 635
 636     AppInfo = (PAPPLICATION_INFO) ListViewGetlParam(Index);
 637     if (!AppInfo) return FALSE;
 638
 639     WriteLogMessage(EVENTLOG_SUCCESS, MSG_SUCCESS_INSTALL, AppInfo->szName);
 640
 641     DialogBoxW(hInst,
 642                MAKEINTRESOURCEW(IDD_DOWNLOAD_DIALOG),
 643                hMainWnd,
 644                DownloadDlgProc);
 645
 646     return TRUE;
 647 }
 648
 649 VOID
 650 DownloadApplicationsDB(LPWSTR lpUrl)
 651 {
 652     APPLICATION_INFO IntInfo;
 653
 654     ZeroMemory(&IntInfo, sizeof(APPLICATION_INFO));
 655     if (FAILED(StringCbCopyW(IntInfo.szUrlDownload,
 656                              sizeof(IntInfo.szUrlDownload),
 657                              lpUrl)))
 658     {
 659         return;
 660     }
 661
 662     AppInfo = &IntInfo;
 663
 664     DialogBoxW(hInst,
 665                MAKEINTRESOURCEW(IDD_DOWNLOAD_DIALOG),
 666                hMainWnd,
 667                DownloadDlgProc);
 668 }
 669