dlls/appwiz.cpl/addons.c

   1 /*
   2  * Copyright 2006-2010 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "config.h"
  20 #include "wine/port.h"
  21
  22 #include <stdarg.h>
  23 #include <fcntl.h>
  24 #include <stdio.h>
  25 #include <errno.h>
  26 #ifdef HAVE_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29
  30 #define COBJMACROS
  31 #define NONAMELESSUNION
  32 #define NONAMELESSSTRUCT
  33
  34 #include "windef.h"
  35 #include "winbase.h"
  36 #include "winuser.h"
  37 #include "cpl.h"
  38 #include "winreg.h"
  39 #include "ole2.h"
  40 #include "commctrl.h"
  41 #include "advpub.h"
  42 #include "wininet.h"
  43 #include "shellapi.h"
  44 #include "urlmon.h"
  45 #include "msi.h"
  46
  47 #include "appwiz.h"
  48 #include "res.h"
  49
  50 #include "wine/debug.h"
  51 #include "wine/library.h"
  52
  53 WINE_DEFAULT_DEBUG_CHANNEL(appwizcpl);
  54
  55 #define GECKO_VERSION "2.24"
  56
  57 #ifdef __i386__
  58 #define ARCH_STRING "x86"
  59 #define GECKO_SHA "b4923c0565e6cbd20075a0d4119ce3b48424f962"
  60 #elif defined(__x86_64__)
  61 #define ARCH_STRING "x86_64"
  62 #define GECKO_SHA "da65fb99a53d87c831030ec8787e31d797f60e60"
  63 #else
  64 #define ARCH_STRING ""
  65 #define GECKO_SHA "???"
  66 #endif
  67
  68 #define MONO_VERSION "4.5.2"
  69 #define MONO_SHA "73d6b8aa7a8921f43b22c6d930e8d7e421058187"
  70
  71 typedef struct {
  72     const char *version;
  73     const char *file_name;
  74     const char *subdir_name;
  75     const char *sha;
  76     const char *url_default;
  77     const char *config_key;
  78     const char *url_config_key;
  79     const char *dir_config_key;
  80     LPCWSTR dialog_template;
  81 } addon_info_t;
  82
  83 static const addon_info_t addons_info[] = {
  84     {
  85         GECKO_VERSION,
  86         "wine_gecko-" GECKO_VERSION "-" ARCH_STRING ".msi",
  87         "gecko",
  88         GECKO_SHA,
  89         "http://source.winehq.org/winegecko.php",
  90         "MSHTML", "GeckoUrl", "GeckoCabDir",
  91         MAKEINTRESOURCEW(ID_DWL_GECKO_DIALOG)
  92     },
  93     {
  94         MONO_VERSION,
  95         "wine-mono-" MONO_VERSION ".msi",
  96         "mono",
  97         MONO_SHA,
  98         "http://source.winehq.org/winemono.php",
  99         "Dotnet", "MonoUrl", "MonoCabDir",
 100         MAKEINTRESOURCEW(ID_DWL_MONO_DIALOG)
 101     }
 102 };
 103
 104 static const addon_info_t *addon;
 105
 106 static HWND install_dialog = NULL;
 107 static LPWSTR url = NULL;
 108 static IBinding *dwl_binding;
 109 static WCHAR *msi_file;
 110
 111 static WCHAR * (CDECL *p_wine_get_dos_file_name)(const char*);
 112 static const WCHAR kernel32_dllW[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
 113
 114
 115 /* SHA definitions are copied from advapi32. They aren't available in headers. */
 116
 117 typedef struct {
 118    ULONG Unknown[6];
 119    ULONG State[5];
 120    ULONG Count[2];
 121    UCHAR Buffer[64];
 122 } SHA_CTX, *PSHA_CTX;
 123
 124 void WINAPI A_SHAInit(PSHA_CTX);
 125 void WINAPI A_SHAUpdate(PSHA_CTX,const unsigned char*,UINT);
 126 void WINAPI A_SHAFinal(PSHA_CTX,PULONG);
 127
 128 static BOOL sha_check(const WCHAR *file_name)
 129 {
 130     const unsigned char *file_map;
 131     HANDLE file, map;
 132     ULONG sha[5];
 133     char buf[2*sizeof(sha)+1];
 134     SHA_CTX ctx;
 135     DWORD size, i;
 136
 137     file = CreateFileW(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_READONLY, NULL);
 138     if(file == INVALID_HANDLE_VALUE) {
 139         WARN("Could not open file: %u\n", GetLastError());
 140         return FALSE;
 141     }
 142
 143     size = GetFileSize(file, NULL);
 144
 145     map = CreateFileMappingW(file, NULL, PAGE_READONLY, 0, 0, NULL);
 146     CloseHandle(file);
 147     if(!map)
 148         return FALSE;
 149
 150     file_map = MapViewOfFile(map, FILE_MAP_READ, 0, 0, 0);
 151     CloseHandle(map);
 152     if(!file_map)
 153         return FALSE;
 154
 155     A_SHAInit(&ctx);
 156     A_SHAUpdate(&ctx, file_map, size);
 157     A_SHAFinal(&ctx, sha);
 158
 159     UnmapViewOfFile(file_map);
 160
 161     for(i=0; i < sizeof(sha); i++)
 162         sprintf(buf + i*2, "%02x", *((unsigned char*)sha+i));
 163
 164     if(strcmp(buf, addon->sha)) {
 165         WARN("Got %s, expected %s\n", buf, addon->sha);
 166         return FALSE;
 167     }
 168
 169     return TRUE;
 170 }
 171
 172 static void set_status(DWORD id)
 173 {
 174     HWND status = GetDlgItem(install_dialog, ID_DWL_STATUS);
 175     WCHAR buf[64];
 176
 177     LoadStringW(hInst, id, buf, sizeof(buf)/sizeof(WCHAR));
 178     SendMessageW(status, WM_SETTEXT, 0, (LPARAM)buf);
 179 }
 180
 181 enum install_res {
 182     INSTALL_OK = 0,
 183     INSTALL_FAILED,
 184     INSTALL_NEXT,
 185 };
 186
 187 static enum install_res install_file(const WCHAR *file_name)
 188 {
 189     ULONG res;
 190
 191     res = MsiInstallProductW(file_name, NULL);
 192     if(res != ERROR_SUCCESS) {
 193         ERR("MsiInstallProduct failed: %u\n", res);
 194         return INSTALL_FAILED;
 195     }
 196
 197     return INSTALL_OK;
 198 }
 199
 200 static enum install_res install_from_unix_file(const char *dir, const char *subdir, const char *file_name)
 201 {
 202     LPWSTR dos_file_name;
 203     char *file_path;
 204     int fd, len;
 205     enum install_res ret;
 206
 207     len = strlen(dir);
 208     file_path = heap_alloc(len+strlen(subdir)+strlen(file_name)+3);
 209     if(!file_path)
 210         return INSTALL_FAILED;
 211
 212     memcpy(file_path, dir, len);
 213     if(len && file_path[len-1] != '/' && file_path[len-1] != '\\')
 214         file_path[len++] = '/';
 215     if(*subdir) {
 216         strcpy(file_path+len, subdir);
 217         len += strlen(subdir);
 218         file_path[len++] = '/';
 219     }
 220     strcpy(file_path+len, file_name);
 221
 222     fd = open(file_path, O_RDONLY);
 223     if(fd == -1) {
 224         TRACE("%s not found\n", debugstr_a(file_path));
 225         heap_free(file_path);
 226         return INSTALL_NEXT;
 227     }
 228
 229     close(fd);
 230
 231     if(p_wine_get_dos_file_name) { /* Wine UNIX mode */
 232         dos_file_name = p_wine_get_dos_file_name(file_path);
 233         if(!dos_file_name) {
 234             ERR("Could not get dos file name of %s\n", debugstr_a(file_path));
 235             heap_free(file_path);
 236             return INSTALL_FAILED;
 237         }
 238     } else { /* Windows mode */
 239         UINT res;
 240         WARN("Could not get wine_get_dos_file_name function, calling install_cab directly.\n");
 241         res = MultiByteToWideChar( CP_ACP, 0, file_path, -1, 0, 0);
 242         dos_file_name = heap_alloc (res*sizeof(WCHAR));
 243         MultiByteToWideChar( CP_ACP, 0, file_path, -1, dos_file_name, res);
 244     }
 245
 246     heap_free(file_path);
 247
 248     ret = install_file(dos_file_name);
 249
 250     heap_free(dos_file_name);
 251     return ret;
 252 }
 253
 254 static HKEY open_config_key(void)
 255 {
 256     HKEY hkey, ret;
 257     DWORD res;
 258
 259     static const WCHAR wine_keyW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e',0};
 260
 261     /* @@ Wine registry key: HKCU\Software\Wine\$config_key */
 262     res = RegOpenKeyW(HKEY_CURRENT_USER, wine_keyW, &hkey);
 263     if(res != ERROR_SUCCESS)
 264         return NULL;
 265
 266     res = RegOpenKeyA(hkey, addon->config_key, &ret);
 267     RegCloseKey(hkey);
 268     return res == ERROR_SUCCESS ? ret : NULL;
 269 }
 270
 271 static enum install_res install_from_registered_dir(void)
 272 {
 273     char *package_dir;
 274     HKEY hkey;
 275     DWORD res, type, size = MAX_PATH;
 276     enum install_res ret;
 277
 278     hkey = open_config_key();
 279     if(!hkey)
 280         return INSTALL_NEXT;
 281
 282     package_dir = heap_alloc(size);
 283     res = RegGetValueA(hkey, NULL, addon->dir_config_key, RRF_RT_ANY, &type, (PBYTE)package_dir, &size);
 284     if(res == ERROR_MORE_DATA) {
 285         package_dir = heap_realloc(package_dir, size);
 286         res = RegGetValueA(hkey, NULL, addon->dir_config_key, RRF_RT_ANY, &type, (PBYTE)package_dir, &size);
 287     }
 288     RegCloseKey(hkey);
 289     if(res == ERROR_FILE_NOT_FOUND) {
 290         heap_free(package_dir);
 291         return INSTALL_NEXT;
 292     } else if(res != ERROR_SUCCESS || (type != REG_SZ && type != REG_EXPAND_SZ)) {
 293         heap_free(package_dir);
 294         return INSTALL_FAILED;
 295     }
 296
 297     TRACE("Trying %s/%s\n", debugstr_a(package_dir), debugstr_a(addon->file_name));
 298
 299     ret = install_from_unix_file(package_dir, "", addon->file_name);
 300
 301     heap_free(package_dir);
 302     return ret;
 303 }
 304
 305 static enum install_res install_from_default_dir(void)
 306 {
 307     const char *data_dir, *package_dir;
 308     char *dir_buf = NULL;
 309     int len;
 310     BOOL ret;
 311
 312     if((data_dir = wine_get_data_dir())) {
 313         package_dir = data_dir;
 314     }else if((data_dir = wine_get_build_dir())) {
 315         len = strlen(data_dir);
 316         dir_buf = heap_alloc(len + sizeof("/../"));
 317         memcpy(dir_buf, data_dir, len);
 318         strcpy(dir_buf+len, "/../");
 319         package_dir = dir_buf;
 320     }else {
 321         return INSTALL_NEXT;
 322     }
 323
 324     ret = install_from_unix_file(package_dir, addon->subdir_name, addon->file_name);
 325     heap_free(dir_buf);
 326
 327     if (ret == INSTALL_NEXT)
 328         ret = install_from_unix_file(INSTALL_DATADIR "/wine/", addon->subdir_name, addon->file_name);
 329     if (ret == INSTALL_NEXT && strcmp(INSTALL_DATADIR, "/usr/share"))
 330         ret = install_from_unix_file("/usr/share/wine/", addon->subdir_name, addon->file_name);
 331     return ret;
 332 }
 333
 334 static WCHAR *get_cache_file_name(BOOL ensure_exists)
 335 {
 336     const char *home_dir = NULL, *xdg_cache_dir;
 337     size_t len, size = strlen(addon->file_name) + 7; /* strlen("/wine/"), '\0' */
 338     char *cache_file_name;
 339     WCHAR *ret;
 340
 341     /* non-Wine (eg. Windows) cache is currently not supported */
 342     if(!p_wine_get_dos_file_name)
 343         return NULL;
 344
 345     xdg_cache_dir = getenv("XDG_CACHE_HOME");
 346     if(xdg_cache_dir && *xdg_cache_dir) {
 347         size += strlen(xdg_cache_dir);
 348     }else {
 349         home_dir = getenv("HOME");
 350         if(!home_dir)
 351             return NULL;
 352
 353         size += strlen(home_dir) + 8; /* strlen("/.cache/") */
 354     }
 355
 356     cache_file_name = heap_alloc(size);
 357     if(!cache_file_name)
 358         return NULL;
 359
 360     if(xdg_cache_dir && *xdg_cache_dir) {
 361         len = strlen(xdg_cache_dir);
 362         if(len > 1 && xdg_cache_dir[len-1] == '/')
 363             len--;
 364         memcpy(cache_file_name, xdg_cache_dir, len);
 365         cache_file_name[len] = 0;
 366     }else {
 367         len = strlen(home_dir);
 368         memcpy(cache_file_name, home_dir, len);
 369         strcpy(cache_file_name+len, "/.cache");
 370         len += 7;
 371     }
 372
 373     if(ensure_exists && mkdir(cache_file_name, 0777) && errno != EEXIST) {
 374         WARN("%s does not exist and could not be created: %s\n", cache_file_name, strerror(errno));
 375         heap_free(cache_file_name);
 376         return NULL;
 377     }
 378
 379     strcpy(cache_file_name+len, "/wine");
 380     len += 5;
 381
 382     if(ensure_exists && mkdir(cache_file_name, 0777) && errno != EEXIST) {
 383         WARN("%s does not exist and could not be created: %s\n", cache_file_name, strerror(errno));
 384         return NULL;
 385     }
 386
 387     cache_file_name[len++] = '/';
 388     strcpy(cache_file_name+len, addon->file_name);
 389     ret = p_wine_get_dos_file_name(cache_file_name);
 390
 391     TRACE("%s -> %s\n", cache_file_name, debugstr_w(ret));
 392
 393     heap_free(cache_file_name);
 394     return ret;
 395 }
 396
 397 static enum install_res install_from_cache(void)
 398 {
 399     WCHAR *cache_file_name;
 400     enum install_res res;
 401
 402     cache_file_name = get_cache_file_name(FALSE);
 403     if(!cache_file_name)
 404         return INSTALL_NEXT;
 405
 406     if(!sha_check(cache_file_name)) {
 407         WARN("could not validate check sum\n");
 408         DeleteFileW(cache_file_name);
 409         heap_free(cache_file_name);
 410         return INSTALL_NEXT;
 411     }
 412
 413     res = install_file(cache_file_name);
 414     heap_free(cache_file_name);
 415     return res;
 416 }
 417
 418 static HRESULT WINAPI InstallCallback_QueryInterface(IBindStatusCallback *iface,
 419         REFIID riid, void **ppv)
 420 {
 421     if(IsEqualGUID(&IID_IUnknown, riid) || IsEqualGUID(&IID_IBindStatusCallback, riid)) {
 422         *ppv = iface;
 423         return S_OK;
 424     }
 425
 426     return E_INVALIDARG;
 427 }
 428
 429 static ULONG WINAPI InstallCallback_AddRef(IBindStatusCallback *iface)
 430 {
 431     return 2;
 432 }
 433
 434 static ULONG WINAPI InstallCallback_Release(IBindStatusCallback *iface)
 435 {
 436     return 1;
 437 }
 438
 439 static HRESULT WINAPI InstallCallback_OnStartBinding(IBindStatusCallback *iface,
 440         DWORD dwReserved, IBinding *pib)
 441 {
 442     set_status(IDS_DOWNLOADING);
 443
 444     IBinding_AddRef(pib);
 445     dwl_binding = pib;
 446
 447     return S_OK;
 448 }
 449
 450 static HRESULT WINAPI InstallCallback_GetPriority(IBindStatusCallback *iface,
 451         LONG *pnPriority)
 452 {
 453     return E_NOTIMPL;
 454 }
 455
 456 static HRESULT WINAPI InstallCallback_OnLowResource(IBindStatusCallback *iface,
 457        DWORD dwReserved)
 458 {
 459     return E_NOTIMPL;
 460 }
 461
 462 static HRESULT WINAPI InstallCallback_OnProgress(IBindStatusCallback *iface, ULONG ulProgress,
 463         ULONG ulProgressMax, ULONG ulStatusCode, LPCWSTR szStatusText)
 464 {
 465     HWND progress = GetDlgItem(install_dialog, ID_DWL_PROGRESS);
 466
 467     if(ulProgressMax)
 468         SendMessageW(progress, PBM_SETRANGE32, 0, ulProgressMax);
 469     if(ulProgress)
 470         SendMessageW(progress, PBM_SETPOS, ulProgress, 0);
 471
 472     return S_OK;
 473 }
 474
 475 static HRESULT WINAPI InstallCallback_OnStopBinding(IBindStatusCallback *iface,
 476         HRESULT hresult, LPCWSTR szError)
 477 {
 478     if(dwl_binding) {
 479         IBinding_Release(dwl_binding);
 480         dwl_binding = NULL;
 481     }
 482
 483     if(FAILED(hresult)) {
 484         if(hresult == E_ABORT)
 485             TRACE("Binding aborted\n");
 486         else
 487             ERR("Binding failed %08x\n", hresult);
 488         return S_OK;
 489     }
 490
 491     if(!msi_file) {
 492         ERR("No MSI file\n");
 493         return E_FAIL;
 494     }
 495
 496     set_status(IDS_INSTALLING);
 497     EnableWindow(GetDlgItem(install_dialog, IDCANCEL), 0);
 498
 499     if(sha_check(msi_file)) {
 500         WCHAR *cache_file_name;
 501
 502         install_file(msi_file);
 503
 504         cache_file_name = get_cache_file_name(TRUE);
 505         if(cache_file_name) {
 506             MoveFileW(msi_file, cache_file_name);
 507             heap_free(cache_file_name);
 508         }
 509     }else {
 510         WCHAR message[256];
 511
 512         if(LoadStringW(hInst, IDS_INVALID_SHA, message, sizeof(message)/sizeof(WCHAR)))
 513             MessageBoxW(NULL, message, NULL, MB_ICONERROR);
 514     }
 515
 516     DeleteFileW(msi_file);
 517     heap_free(msi_file);
 518     msi_file = NULL;
 519
 520     EndDialog(install_dialog, 0);
 521     return S_OK;
 522 }
 523
 524 static HRESULT WINAPI InstallCallback_GetBindInfo(IBindStatusCallback *iface,
 525         DWORD* grfBINDF, BINDINFO* pbindinfo)
 526 {
 527     TRACE("()\n");
 528
 529     *grfBINDF = BINDF_ASYNCHRONOUS;
 530     return S_OK;
 531 }
 532
 533 static HRESULT WINAPI InstallCallback_OnDataAvailable(IBindStatusCallback *iface, DWORD grfBSCF,
 534         DWORD dwSize, FORMATETC* pformatetc, STGMEDIUM* pstgmed)
 535 {
 536     if(!msi_file) {
 537         msi_file = heap_strdupW(pstgmed->u.lpszFileName);
 538         TRACE("got file name %s\n", debugstr_w(msi_file));
 539     }
 540
 541     return S_OK;
 542 }
 543
 544 static HRESULT WINAPI InstallCallback_OnObjectAvailable(IBindStatusCallback *iface,
 545         REFIID riid, IUnknown* punk)
 546 {
 547     ERR("\n");
 548     return E_NOTIMPL;
 549 }
 550
 551 static const IBindStatusCallbackVtbl InstallCallbackVtbl = {
 552     InstallCallback_QueryInterface,
 553     InstallCallback_AddRef,
 554     InstallCallback_Release,
 555     InstallCallback_OnStartBinding,
 556     InstallCallback_GetPriority,
 557     InstallCallback_OnLowResource,
 558     InstallCallback_OnProgress,
 559     InstallCallback_OnStopBinding,
 560     InstallCallback_GetBindInfo,
 561     InstallCallback_OnDataAvailable,
 562     InstallCallback_OnObjectAvailable
 563 };
 564
 565 static IBindStatusCallback InstallCallback = { &InstallCallbackVtbl };
 566
 567 static void append_url_params( WCHAR *url )
 568 {
 569     static const WCHAR arch_formatW[] = {'?','a','r','c','h','='};
 570     static const WCHAR v_formatW[] = {'&','v','='};
 571     DWORD size = INTERNET_MAX_URL_LENGTH * sizeof(WCHAR);
 572     DWORD len = strlenW(url);
 573
 574     memcpy(url+len, arch_formatW, sizeof(arch_formatW));
 575     len += sizeof(arch_formatW)/sizeof(WCHAR);
 576     len += MultiByteToWideChar(CP_ACP, 0, ARCH_STRING, sizeof(ARCH_STRING),
 577                                url+len, size/sizeof(WCHAR)-len)-1;
 578     memcpy(url+len, v_formatW, sizeof(v_formatW));
 579     len += sizeof(v_formatW)/sizeof(WCHAR);
 580     MultiByteToWideChar(CP_ACP, 0, addon->version, -1, url+len, size/sizeof(WCHAR)-len);
 581 }
 582
 583 static LPWSTR get_url(void)
 584 {
 585     DWORD size = INTERNET_MAX_URL_LENGTH*sizeof(WCHAR);
 586     WCHAR *url, *config_key;
 587     HKEY hkey;
 588     DWORD res, type;
 589     DWORD returned_size;
 590
 591     static const WCHAR httpW[] = {'h','t','t','p'};
 592
 593     url = heap_alloc(size);
 594     returned_size = size;
 595
 596     hkey = open_config_key();
 597     if (hkey)
 598     {
 599         config_key = heap_strdupAtoW(addon->url_config_key);
 600         res = RegQueryValueExW(hkey, config_key, NULL, &type, (LPBYTE)url, &returned_size);
 601         heap_free(config_key);
 602         RegCloseKey(hkey);
 603         if(res == ERROR_SUCCESS && type == REG_SZ) goto found;
 604     }
 605
 606     MultiByteToWideChar( CP_ACP, 0, addon->url_default, -1, url, size / sizeof(WCHAR) );
 607
 608 found:
 609     if (returned_size > sizeof(httpW) && !memcmp(url, httpW, sizeof(httpW))) append_url_params( url );
 610
 611     TRACE("Got URL %s\n", debugstr_w(url));
 612     return url;
 613 }
 614
 615 static BOOL start_download(void)
 616 {
 617     IBindCtx *bind_ctx;
 618     IMoniker *mon;
 619     IUnknown *tmp;
 620     HRESULT hres;
 621
 622     hres = CreateURLMoniker(NULL, url, &mon);
 623     if(FAILED(hres))
 624         return FALSE;
 625
 626     hres = CreateAsyncBindCtx(0, &InstallCallback, NULL, &bind_ctx);
 627     if(SUCCEEDED(hres)) {
 628         hres = IMoniker_BindToStorage(mon, bind_ctx, NULL, &IID_IUnknown, (void**)&tmp);
 629         IBindCtx_Release(bind_ctx);
 630     }
 631     IMoniker_Release(mon);
 632     if(FAILED(hres))
 633         return FALSE;
 634
 635     if(tmp)
 636         IUnknown_Release(tmp);
 637     return TRUE;
 638 }
 639
 640 static void run_winebrowser(const WCHAR *url)
 641 {
 642     PROCESS_INFORMATION pi;
 643     STARTUPINFOW si;
 644     WCHAR app[MAX_PATH];
 645     LONG len, url_len;
 646     WCHAR *args;
 647     BOOL ret;
 648
 649     static const WCHAR winebrowserW[] = {'\\','w','i','n','e','b','r','o','w','s','e','r','.','e','x','e',0};
 650
 651     url_len = strlenW(url);
 652
 653     len = GetSystemDirectoryW(app, MAX_PATH-sizeof(winebrowserW)/sizeof(WCHAR));
 654     memcpy(app+len, winebrowserW, sizeof(winebrowserW));
 655     len += sizeof(winebrowserW)/sizeof(WCHAR) -1;
 656
 657     args = heap_alloc((len+1+url_len)*sizeof(WCHAR));
 658     if(!args)
 659         return;
 660
 661     memcpy(args, app, len*sizeof(WCHAR));
 662     args[len++] = ' ';
 663     memcpy(args+len, url, (url_len+1) * sizeof(WCHAR));
 664
 665     TRACE("starting %s\n", debugstr_w(args));
 666
 667     memset(&si, 0, sizeof(si));
 668     si.cb = sizeof(si);
 669     ret = CreateProcessW(app, args, NULL, NULL, FALSE, DETACHED_PROCESS, NULL, NULL, &si, &pi);
 670     heap_free(args);
 671     if (ret) {
 672         CloseHandle(pi.hThread);
 673         CloseHandle(pi.hProcess);
 674     }
 675 }
 676
 677 static INT_PTR CALLBACK installer_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 678 {
 679     switch(msg) {
 680     case WM_INITDIALOG:
 681         ShowWindow(GetDlgItem(hwnd, ID_DWL_PROGRESS), SW_HIDE);
 682         install_dialog = hwnd;
 683         return TRUE;
 684
 685     case WM_NOTIFY:
 686         switch (((NMHDR *)lParam)->code)
 687         {
 688         case NM_CLICK:
 689         case NM_RETURN:
 690             if (wParam == ID_DWL_STATUS)
 691                 run_winebrowser(((NMLINK*)lParam)->item.szUrl);
 692             break;
 693         }
 694         break;
 695
 696     case WM_COMMAND:
 697         switch(wParam) {
 698         case IDCANCEL:
 699             if(dwl_binding)
 700                 IBinding_Abort(dwl_binding);
 701             EndDialog(hwnd, 0);
 702             return FALSE;
 703
 704         case ID_DWL_INSTALL:
 705             ShowWindow(GetDlgItem(hwnd, ID_DWL_PROGRESS), SW_SHOW);
 706             EnableWindow(GetDlgItem(hwnd, ID_DWL_INSTALL), 0);
 707             if(!start_download())
 708                 EndDialog(install_dialog, 0);
 709         }
 710     }
 711
 712     return FALSE;
 713 }
 714
 715 BOOL install_addon(addon_t addon_type)
 716 {
 717     if(!*ARCH_STRING)
 718         return FALSE;
 719
 720     addon = addons_info+addon_type;
 721
 722     p_wine_get_dos_file_name = (void*)GetProcAddress(GetModuleHandleW(kernel32_dllW), "wine_get_dos_file_name");
 723
 724     /*
 725      * Try to find addon .msi file in following order:
 726      * - directory stored in $dir_config_key value of HKCU/Wine/Software/$config_key key
 727      * - $datadir/$addon_subdir/
 728      * - $INSTALL_DATADIR/wine/$addon_subdir/
 729      * - /usr/share/wine/$addon_subdir/
 730      * - download from URL stored in $url_config_key value of HKCU/Wine/Software/$config_key key
 731      */
 732     if (install_from_registered_dir() == INSTALL_NEXT
 733         && install_from_default_dir() == INSTALL_NEXT
 734         && install_from_cache() == INSTALL_NEXT
 735         && (url = get_url()))
 736         DialogBoxW(hInst, addon->dialog_template, 0, installer_proc);
 737
 738     heap_free(url);
 739     url = NULL;
 740     return TRUE;
 741 }