git.oblomov.eu Git - wine/blob - dlls/urlmon/urlmon_main.c

   1 /*
   2  * UrlMon
   3  *
   4  * Copyright (c) 2000 Patrik Stridvall
   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 #include <stdarg.h>
  22
  23 #include "urlmon_main.h"
  24
  25 #include "winreg.h"
  26
  27 #define NO_SHLWAPI_REG
  28 #include "shlwapi.h"
  29 #include "wine/debug.h"
  30
  31 #include "urlmon.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(urlmon);
  34
  35 LONG URLMON_refCount = 0;
  36
  37 HINSTANCE URLMON_hInstance = 0;
  38 static HMODULE hCabinet = NULL;
  39 static DWORD urlmon_tls = TLS_OUT_OF_INDEXES;
  40
  41 static void init_session(BOOL);
  42
  43 static struct list tls_list = LIST_INIT(tls_list);
  44
  45 static CRITICAL_SECTION tls_cs;
  46 static CRITICAL_SECTION_DEBUG tls_cs_dbg =
  47 {
  48     0, 0, &tls_cs,
  49     { &tls_cs_dbg.ProcessLocksList, &tls_cs_dbg.ProcessLocksList },
  50       0, 0, { (DWORD_PTR)(__FILE__ ": tls") }
  51 };
  52
  53 static CRITICAL_SECTION tls_cs = { &tls_cs_dbg, -1, 0, 0, 0, 0 };
  54
  55 tls_data_t *get_tls_data(void)
  56 {
  57     tls_data_t *data;
  58
  59     if(urlmon_tls == TLS_OUT_OF_INDEXES) {
  60         DWORD tls = TlsAlloc();
  61         if(tls == TLS_OUT_OF_INDEXES)
  62             return NULL;
  63
  64         tls = InterlockedCompareExchange((LONG*)&urlmon_tls, tls, TLS_OUT_OF_INDEXES);
  65         if(tls != urlmon_tls)
  66             TlsFree(tls);
  67     }
  68
  69     data = TlsGetValue(urlmon_tls);
  70     if(!data) {
  71         data = heap_alloc_zero(sizeof(tls_data_t));
  72         if(!data)
  73             return NULL;
  74
  75         EnterCriticalSection(&tls_cs);
  76         list_add_tail(&tls_list, &data->entry);
  77         LeaveCriticalSection(&tls_cs);
  78
  79         TlsSetValue(urlmon_tls, data);
  80     }
  81
  82     return data;
  83 }
  84
  85 static void free_tls_list(void)
  86 {
  87     tls_data_t *data;
  88
  89     if(urlmon_tls == TLS_OUT_OF_INDEXES)
  90         return;
  91
  92     while(!list_empty(&tls_list)) {
  93         data = LIST_ENTRY(list_head(&tls_list), tls_data_t, entry);
  94         list_remove(&data->entry);
  95         heap_free(data);
  96     }
  97
  98     TlsFree(urlmon_tls);
  99 }
 100
 101 static void detach_thread(void)
 102 {
 103     tls_data_t *data;
 104
 105     if(urlmon_tls == TLS_OUT_OF_INDEXES)
 106         return;
 107
 108     data = TlsGetValue(urlmon_tls);
 109     if(!data)
 110         return;
 111
 112     EnterCriticalSection(&tls_cs);
 113     list_remove(&data->entry);
 114     LeaveCriticalSection(&tls_cs);
 115
 116     if(data->notif_hwnd) {
 117         WARN("notif_hwnd not destroyed\n");
 118         DestroyWindow(data->notif_hwnd);
 119     }
 120
 121     heap_free(data);
 122 }
 123
 124 /***********************************************************************
 125  *              DllMain (URLMON.init)
 126  */
 127 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
 128 {
 129     TRACE("%p 0x%x %p\n", hinstDLL, fdwReason, fImpLoad);
 130
 131     switch(fdwReason) {
 132     case DLL_PROCESS_ATTACH:
 133         URLMON_hInstance = hinstDLL;
 134         init_session(TRUE);
 135         break;
 136
 137     case DLL_PROCESS_DETACH:
 138         if (hCabinet)
 139             FreeLibrary(hCabinet);
 140         hCabinet = NULL;
 141         init_session(FALSE);
 142         free_session();
 143         free_tls_list();
 144         URLMON_hInstance = 0;
 145         break;
 146
 147     case DLL_THREAD_DETACH:
 148         detach_thread();
 149         break;
 150     }
 151     return TRUE;
 152 }
 153
 154
 155 /***********************************************************************
 156  *              DllInstall (URLMON.@)
 157  */
 158 HRESULT WINAPI DllInstall(BOOL bInstall, LPCWSTR cmdline)
 159 {
 160   FIXME("(%s, %s): stub\n", bInstall?"TRUE":"FALSE",
 161         debugstr_w(cmdline));
 162
 163   return S_OK;
 164 }
 165
 166 /***********************************************************************
 167  *              DllCanUnloadNow (URLMON.@)
 168  */
 169 HRESULT WINAPI DllCanUnloadNow(void)
 170 {
 171     return URLMON_refCount != 0 ? S_FALSE : S_OK;
 172 }
 173
 174
 175
 176 /******************************************************************************
 177  * Urlmon ClassFactory
 178  */
 179 typedef struct {
 180     const IClassFactoryVtbl *lpClassFactoryVtbl;
 181
 182     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
 183 } ClassFactory;
 184
 185 #define CLASSFACTORY(x)  ((IClassFactory*)  &(x)->lpClassFactoryVtbl)
 186
 187 static HRESULT WINAPI CF_QueryInterface(IClassFactory *iface, REFIID riid, LPVOID *ppv)
 188 {
 189     *ppv = NULL;
 190
 191     if(IsEqualGUID(riid, &IID_IUnknown)) {
 192         TRACE("(%p)->(IID_IUnknown %p)\n", iface, ppv);
 193         *ppv = iface;
 194     }else if(IsEqualGUID(riid, &IID_IClassFactory)) {
 195         TRACE("(%p)->(IID_IClassFactory %p)\n", iface, ppv);
 196         *ppv = iface;
 197     }
 198
 199     if(*ppv) {
 200         IUnknown_AddRef((IUnknown*)*ppv);
 201         return S_OK;
 202     }
 203
 204     WARN("(%p)->(%s,%p),not found\n", iface, debugstr_guid(riid), ppv);
 205     return E_NOINTERFACE;
 206 }
 207
 208 static ULONG WINAPI CF_AddRef(IClassFactory *iface)
 209 {
 210     URLMON_LockModule();
 211     return 2;
 212 }
 213
 214 static ULONG WINAPI CF_Release(IClassFactory *iface)
 215 {
 216     URLMON_UnlockModule();
 217     return 1;
 218 }
 219
 220
 221 static HRESULT WINAPI CF_CreateInstance(IClassFactory *iface, IUnknown *pOuter,
 222                                         REFIID riid, LPVOID *ppobj)
 223 {
 224     ClassFactory *This = (ClassFactory*)iface;
 225     HRESULT hres;
 226     LPUNKNOWN punk;
 227
 228     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 229
 230     *ppobj = NULL;
 231     if(SUCCEEDED(hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk))) {
 232         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 233         IUnknown_Release(punk);
 234     }
 235     return hres;
 236 }
 237
 238 static HRESULT WINAPI CF_LockServer(LPCLASSFACTORY iface,BOOL dolock)
 239 {
 240     TRACE("(%d)\n", dolock);
 241
 242     if (dolock)
 243            URLMON_LockModule();
 244     else
 245            URLMON_UnlockModule();
 246
 247     return S_OK;
 248 }
 249
 250 static const IClassFactoryVtbl ClassFactoryVtbl =
 251 {
 252     CF_QueryInterface,
 253     CF_AddRef,
 254     CF_Release,
 255     CF_CreateInstance,
 256     CF_LockServer
 257 };
 258
 259 static const ClassFactory FileProtocolCF =
 260     { &ClassFactoryVtbl, FileProtocol_Construct};
 261 static const ClassFactory FtpProtocolCF =
 262     { &ClassFactoryVtbl, FtpProtocol_Construct};
 263 static const ClassFactory GopherProtocolCF =
 264     { &ClassFactoryVtbl, GopherProtocol_Construct};
 265 static const ClassFactory HttpProtocolCF =
 266     { &ClassFactoryVtbl, HttpProtocol_Construct};
 267 static const ClassFactory HttpSProtocolCF =
 268     { &ClassFactoryVtbl, HttpSProtocol_Construct};
 269 static const ClassFactory MkProtocolCF =
 270     { &ClassFactoryVtbl, MkProtocol_Construct};
 271 static const ClassFactory SecurityManagerCF =
 272     { &ClassFactoryVtbl, SecManagerImpl_Construct};
 273 static const ClassFactory ZoneManagerCF =
 274     { &ClassFactoryVtbl, ZoneMgrImpl_Construct};
 275 static const ClassFactory StdURLMonikerCF =
 276     { &ClassFactoryVtbl, StdURLMoniker_Construct};
 277 static const ClassFactory MimeFilterCF =
 278     { &ClassFactoryVtbl, MimeFilter_Construct};
 279
 280 struct object_creation_info
 281 {
 282     const CLSID *clsid;
 283     IClassFactory *cf;
 284     LPCWSTR protocol;
 285 };
 286
 287 static const WCHAR wszFile[] = {'f','i','l','e',0};
 288 static const WCHAR wszFtp[]  = {'f','t','p',0};
 289 static const WCHAR wszGopher[]  = {'g','o','p','h','e','r',0};
 290 static const WCHAR wszHttp[] = {'h','t','t','p',0};
 291 static const WCHAR wszHttps[] = {'h','t','t','p','s',0};
 292 static const WCHAR wszMk[]   = {'m','k',0};
 293
 294 static const struct object_creation_info object_creation[] =
 295 {
 296     { &CLSID_FileProtocol,            CLASSFACTORY(&FileProtocolCF),    wszFile },
 297     { &CLSID_FtpProtocol,             CLASSFACTORY(&FtpProtocolCF),     wszFtp  },
 298     { &CLSID_GopherProtocol,          CLASSFACTORY(&GopherProtocolCF),  wszGopher },
 299     { &CLSID_HttpProtocol,            CLASSFACTORY(&HttpProtocolCF),    wszHttp },
 300     { &CLSID_HttpSProtocol,           CLASSFACTORY(&HttpSProtocolCF),   wszHttps },
 301     { &CLSID_MkProtocol,              CLASSFACTORY(&MkProtocolCF),      wszMk },
 302     { &CLSID_InternetSecurityManager, CLASSFACTORY(&SecurityManagerCF), NULL    },
 303     { &CLSID_InternetZoneManager,     CLASSFACTORY(&ZoneManagerCF),     NULL    },
 304     { &CLSID_StdURLMoniker,           CLASSFACTORY(&StdURLMonikerCF),   NULL    },
 305     { &CLSID_DeCompMimeFilter,        CLASSFACTORY(&MimeFilterCF),      NULL    }
 306 };
 307
 308 static void init_session(BOOL init)
 309 {
 310     unsigned int i;
 311
 312     for(i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++) {
 313
 314         if(object_creation[i].protocol)
 315             register_urlmon_namespace(object_creation[i].cf, object_creation[i].clsid,
 316                                       object_creation[i].protocol, init);
 317     }
 318 }
 319
 320 /*******************************************************************************
 321  * DllGetClassObject [URLMON.@]
 322  * Retrieves class object from a DLL object
 323  *
 324  * NOTES
 325  *    Docs say returns STDAPI
 326  *
 327  * PARAMS
 328  *    rclsid [I] CLSID for the class object
 329  *    riid   [I] Reference to identifier of interface for class object
 330  *    ppv    [O] Address of variable to receive interface pointer for riid
 331  *
 332  * RETURNS
 333  *    Success: S_OK
 334  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 335  *             E_UNEXPECTED
 336  */
 337
 338 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 339 {
 340     unsigned int i;
 341
 342     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 343
 344     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 345     {
 346         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 347             return IClassFactory_QueryInterface(object_creation[i].cf, riid, ppv);
 348     }
 349
 350     FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 351     return CLASS_E_CLASSNOTAVAILABLE;
 352 }
 353
 354
 355 /***********************************************************************
 356  *              DllRegisterServerEx (URLMON.@)
 357  */
 358 HRESULT WINAPI DllRegisterServerEx(void)
 359 {
 360     FIXME("(void): stub\n");
 361
 362     return E_FAIL;
 363 }
 364
 365 /**************************************************************************
 366  *                 IsValidURL (URLMON.@)
 367  *
 368  * Determines if a specified string is a valid URL.
 369  *
 370  * PARAMS
 371  *  pBC        [I] ignored, must be NULL.
 372  *  szURL      [I] string that represents the URL in question.
 373  *  dwReserved [I] reserved and must be zero.
 374  *
 375  * RETURNS
 376  *  Success: S_OK.
 377  *  Failure: S_FALSE.
 378  *  returns E_INVALIDARG if one or more of the args is invalid.
 379  *
 380  * TODO:
 381  *  test functionality against windows to see what a valid URL is.
 382  */
 383 HRESULT WINAPI IsValidURL(LPBC pBC, LPCWSTR szURL, DWORD dwReserved)
 384 {
 385     FIXME("(%p, %s, %d): stub\n", pBC, debugstr_w(szURL), dwReserved);
 386
 387     if (pBC != NULL || dwReserved != 0)
 388         return E_INVALIDARG;
 389
 390     return S_OK;
 391 }
 392
 393 /**************************************************************************
 394  *                 FaultInIEFeature (URLMON.@)
 395  *
 396  *  Undocumented.  Appears to be used by native shdocvw.dll.
 397  */
 398 HRESULT WINAPI FaultInIEFeature( HWND hwnd, uCLSSPEC * pClassSpec,
 399                                  QUERYCONTEXT *pQuery, DWORD flags )
 400 {
 401     FIXME("%p %p %p %08x\n", hwnd, pClassSpec, pQuery, flags);
 402     return E_NOTIMPL;
 403 }
 404
 405 /**************************************************************************
 406  *                 CoGetClassObjectFromURL (URLMON.@)
 407  */
 408 HRESULT WINAPI CoGetClassObjectFromURL( REFCLSID rclsid, LPCWSTR szCodeURL, DWORD dwFileVersionMS,
 409                                         DWORD dwFileVersionLS, LPCWSTR szContentType,
 410                                         LPBINDCTX pBindCtx, DWORD dwClsContext, LPVOID pvReserved,
 411                                         REFIID riid, LPVOID *ppv )
 412 {
 413     FIXME("(%s %s %d %d %s %p %d %p %s %p) Stub!\n", debugstr_guid(rclsid), debugstr_w(szCodeURL),
 414         dwFileVersionMS, dwFileVersionLS, debugstr_w(szContentType), pBindCtx, dwClsContext, pvReserved,
 415         debugstr_guid(riid), ppv);
 416     return E_NOINTERFACE;
 417 }
 418
 419 /***********************************************************************
 420  *           ReleaseBindInfo (URLMON.@)
 421  *
 422  * Release the resources used by the specified BINDINFO structure.
 423  *
 424  * PARAMS
 425  *  pbindinfo [I] BINDINFO to release.
 426  *
 427  * RETURNS
 428  *  Nothing.
 429  */
 430 void WINAPI ReleaseBindInfo(BINDINFO* pbindinfo)
 431 {
 432     DWORD size;
 433
 434     TRACE("(%p)\n", pbindinfo);
 435
 436     if(!pbindinfo || !(size = pbindinfo->cbSize))
 437         return;
 438
 439     CoTaskMemFree(pbindinfo->szExtraInfo);
 440     ReleaseStgMedium(&pbindinfo->stgmedData);
 441
 442     if(offsetof(BINDINFO, szExtraInfo) < size)
 443         CoTaskMemFree(pbindinfo->szCustomVerb);
 444
 445     if(pbindinfo->pUnk && offsetof(BINDINFO, pUnk) < size)
 446         IUnknown_Release(pbindinfo->pUnk);
 447
 448     memset(pbindinfo, 0, size);
 449     pbindinfo->cbSize = size;
 450 }
 451
 452 /***********************************************************************
 453  *           CopyStgMedium (URLMON.@)
 454  */
 455 HRESULT WINAPI CopyStgMedium(const STGMEDIUM *src, STGMEDIUM *dst)
 456 {
 457     TRACE("(%p %p)\n", src, dst);
 458
 459     if(!src || !dst)
 460         return E_POINTER;
 461
 462     *dst = *src;
 463
 464     switch(dst->tymed) {
 465     case TYMED_NULL:
 466         break;
 467     case TYMED_FILE:
 468         if(src->u.lpszFileName && !src->pUnkForRelease) {
 469             DWORD size = (strlenW(src->u.lpszFileName)+1)*sizeof(WCHAR);
 470             dst->u.lpszFileName = CoTaskMemAlloc(size);
 471             memcpy(dst->u.lpszFileName, src->u.lpszFileName, size);
 472         }
 473         break;
 474     case TYMED_ISTREAM:
 475         if(dst->u.pstm)
 476             IStream_AddRef(dst->u.pstm);
 477         break;
 478     case TYMED_ISTORAGE:
 479         if(dst->u.pstg)
 480             IStorage_AddRef(dst->u.pstg);
 481         break;
 482     default:
 483         FIXME("Unimplemented tymed %d\n", src->tymed);
 484     }
 485
 486     if(dst->pUnkForRelease)
 487         IUnknown_AddRef(dst->pUnkForRelease);
 488
 489     return S_OK;
 490 }
 491
 492 static BOOL text_richtext_filter(const BYTE *b, DWORD size)
 493 {
 494     return size > 5 && !memcmp(b, "{\\rtf", 5);
 495 }
 496
 497 static BOOL text_html_filter(const BYTE *b, DWORD size)
 498 {
 499     DWORD i;
 500
 501     if(size < 5)
 502         return FALSE;
 503
 504     for(i=0; i < size-5; i++) {
 505         if(b[i] == '<'
 506            && (b[i+1] == 'h' || b[i+1] == 'H')
 507            && (b[i+2] == 't' || b[i+2] == 'T')
 508            && (b[i+3] == 'm' || b[i+3] == 'M')
 509            && (b[i+4] == 'l' || b[i+4] == 'L'))
 510             return TRUE;
 511     }
 512
 513     return FALSE;
 514 }
 515
 516 static BOOL audio_basic_filter(const BYTE *b, DWORD size)
 517 {
 518     return size > 4
 519         && b[0] == '.' && b[1] == 's' && b[2] == 'n' && b[3] == 'd';
 520 }
 521
 522 static BOOL audio_wav_filter(const BYTE *b, DWORD size)
 523 {
 524     return size > 12
 525         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 526         && b[8] == 'W' && b[9] == 'A' && b[10] == 'V' && b[11] == 'E';
 527 }
 528
 529 static BOOL image_gif_filter(const BYTE *b, DWORD size)
 530 {
 531     return size >= 6
 532         && (b[0] == 'G' || b[0] == 'g')
 533         && (b[1] == 'I' || b[1] == 'i')
 534         && (b[2] == 'F' || b[2] == 'f')
 535         &&  b[3] == '8'
 536         && (b[4] == '7' || b[4] == '9')
 537         && (b[5] == 'A' || b[5] == 'a');
 538 }
 539
 540 static BOOL image_pjpeg_filter(const BYTE *b, DWORD size)
 541 {
 542     return size > 2 && b[0] == 0xff && b[1] == 0xd8;
 543 }
 544
 545 static BOOL image_tiff_filter(const BYTE *b, DWORD size)
 546 {
 547     return size > 2 && b[0] == 0x4d && b[1] == 0x4d;
 548 }
 549
 550 static BOOL image_xpng_filter(const BYTE *b, DWORD size)
 551 {
 552     static const BYTE xpng_header[] = {0x89,'P','N','G',0x0d,0x0a,0x1a,0x0a};
 553     return size > sizeof(xpng_header) && !memcmp(b, xpng_header, sizeof(xpng_header));
 554 }
 555
 556 static BOOL image_bmp_filter(const BYTE *b, DWORD size)
 557 {
 558     return size >= 14
 559         && b[0] == 0x42 && b[1] == 0x4d
 560         && *(const DWORD *)(b+6) == 0;
 561 }
 562
 563 static BOOL video_avi_filter(const BYTE *b, DWORD size)
 564 {
 565     return size > 12
 566         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 567         && b[8] == 'A' && b[9] == 'V' && b[10] == 'I' && b[11] == 0x20;
 568 }
 569
 570 static BOOL video_mpeg_filter(const BYTE *b, DWORD size)
 571 {
 572     return size > 4
 573         && !b[0] && !b[1] && b[2] == 0x01
 574         && (b[3] == 0xb3 || b[3] == 0xba);
 575 }
 576
 577 static BOOL application_postscript_filter(const BYTE *b, DWORD size)
 578 {
 579     return size > 2 && b[0] == '%' && b[1] == '!';
 580 }
 581
 582 static BOOL application_pdf_filter(const BYTE *b, DWORD size)
 583 {
 584     return size > 4 && b[0] == 0x25 && b[1] == 0x50 && b[2] == 0x44 && b[3] == 0x46;
 585 }
 586
 587 static BOOL application_xzip_filter(const BYTE *b, DWORD size)
 588 {
 589     return size > 2 && b[0] == 0x50 && b[1] == 0x4b;
 590 }
 591
 592 static BOOL application_xgzip_filter(const BYTE *b, DWORD size)
 593 {
 594     return size > 2 && b[0] == 0x1f && b[1] == 0x8b;
 595 }
 596
 597 static BOOL application_java_filter(const BYTE *b, DWORD size)
 598 {
 599     return size > 4 && b[0] == 0xca && b[1] == 0xfe && b[2] == 0xba && b[3] == 0xbe;
 600 }
 601
 602 static BOOL application_xmsdownload(const BYTE *b, DWORD size)
 603 {
 604     return size > 2 && b[0] == 'M' && b[1] == 'Z';
 605 }
 606
 607 static BOOL text_plain_filter(const BYTE *b, DWORD size)
 608 {
 609     const BYTE *ptr;
 610
 611     for(ptr = b; ptr < b+size-1; ptr++) {
 612         if(*ptr < 0x20 && *ptr != '\n' && *ptr != '\r' && *ptr != '\t')
 613             return FALSE;
 614     }
 615
 616     return TRUE;
 617 }
 618
 619 static BOOL application_octet_stream_filter(const BYTE *b, DWORD size)
 620 {
 621     return TRUE;
 622 }
 623
 624 /***********************************************************************
 625  *           FindMimeFromData (URLMON.@)
 626  *
 627  * Determines the Multipurpose Internet Mail Extensions (MIME) type from the data provided.
 628  */
 629 HRESULT WINAPI FindMimeFromData(LPBC pBC, LPCWSTR pwzUrl, LPVOID pBuffer,
 630         DWORD cbSize, LPCWSTR pwzMimeProposed, DWORD dwMimeFlags,
 631         LPWSTR* ppwzMimeOut, DWORD dwReserved)
 632 {
 633     TRACE("(%p,%s,%p,%d,%s,0x%x,%p,0x%x)\n", pBC, debugstr_w(pwzUrl), pBuffer, cbSize,
 634             debugstr_w(pwzMimeProposed), dwMimeFlags, ppwzMimeOut, dwReserved);
 635
 636     if(dwMimeFlags)
 637         WARN("dwMimeFlags=%08x\n", dwMimeFlags);
 638     if(dwReserved)
 639         WARN("dwReserved=%d\n", dwReserved);
 640
 641     /* pBC seams to not be used */
 642
 643     if(!ppwzMimeOut || (!pwzUrl && !pBuffer))
 644         return E_INVALIDARG;
 645
 646     if(pwzMimeProposed && (!pBuffer || (pBuffer && !cbSize))) {
 647         DWORD len;
 648
 649         if(!pwzMimeProposed)
 650             return E_FAIL;
 651
 652         len = strlenW(pwzMimeProposed)+1;
 653         *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 654         memcpy(*ppwzMimeOut, pwzMimeProposed, len*sizeof(WCHAR));
 655         return S_OK;
 656     }
 657
 658     if(pBuffer) {
 659         const BYTE *buf = pBuffer;
 660         DWORD len;
 661         LPCWSTR ret = NULL;
 662         unsigned int i;
 663
 664         static const WCHAR wszTextHtml[] = {'t','e','x','t','/','h','t','m','l',0};
 665         static const WCHAR wszTextRichtext[] = {'t','e','x','t','/','r','i','c','h','t','e','x','t',0};
 666         static const WCHAR wszAudioBasic[] = {'a','u','d','i','o','/','b','a','s','i','c',0};
 667         static const WCHAR wszAudioWav[] = {'a','u','d','i','o','/','w','a','v',0};
 668         static const WCHAR wszImageGif[] = {'i','m','a','g','e','/','g','i','f',0};
 669         static const WCHAR wszImagePjpeg[] = {'i','m','a','g','e','/','p','j','p','e','g',0};
 670         static const WCHAR wszImageTiff[] = {'i','m','a','g','e','/','t','i','f','f',0};
 671         static const WCHAR wszImageXPng[] = {'i','m','a','g','e','/','x','-','p','n','g',0};
 672         static const WCHAR wszImageBmp[] = {'i','m','a','g','e','/','b','m','p',0};
 673         static const WCHAR wszVideoAvi[] = {'v','i','d','e','o','/','a','v','i',0};
 674         static const WCHAR wszVideoMpeg[] = {'v','i','d','e','o','/','m','p','e','g',0};
 675         static const WCHAR wszAppPostscript[] =
 676             {'a','p','p','l','i','c','a','t','i','o','n','/','p','o','s','t','s','c','r','i','p','t',0};
 677         static const WCHAR wszAppPdf[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 678             'p','d','f',0};
 679         static const WCHAR wszAppXZip[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 680             'x','-','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 681         static const WCHAR wszAppXGzip[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 682             'x','-','g','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 683         static const WCHAR wszAppJava[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 684             'j','a','v','a',0};
 685         static const WCHAR wszAppXMSDownload[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 686             'x','-','m','s','d','o','w','n','l','o','a','d',0};
 687         static const WCHAR wszTextPlain[] = {'t','e','x','t','/','p','l','a','i','n','\0'};
 688         static const WCHAR wszAppOctetStream[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 689             'o','c','t','e','t','-','s','t','r','e','a','m','\0'};
 690
 691         static const struct {
 692             LPCWSTR mime;
 693             BOOL (*filter)(const BYTE *,DWORD);
 694         } mime_filters[] = {
 695             {wszTextHtml,       text_html_filter},
 696             {wszTextRichtext,   text_richtext_filter},
 697          /* {wszAudioXAiff,     audio_xaiff_filter}, */
 698             {wszAudioBasic,     audio_basic_filter},
 699             {wszAudioWav,       audio_wav_filter},
 700             {wszImageGif,       image_gif_filter},
 701             {wszImagePjpeg,     image_pjpeg_filter},
 702             {wszImageTiff,      image_tiff_filter},
 703             {wszImageXPng,      image_xpng_filter},
 704          /* {wszImageXBitmap,   image_xbitmap_filter}, */
 705             {wszImageBmp,       image_bmp_filter},
 706          /* {wszImageXJg,       image_xjg_filter}, */
 707          /* {wszImageXEmf,      image_xemf_filter}, */
 708          /* {wszImageXWmf,      image_xwmf_filter}, */
 709             {wszVideoAvi,       video_avi_filter},
 710             {wszVideoMpeg,      video_mpeg_filter},
 711             {wszAppPostscript,  application_postscript_filter},
 712          /* {wszAppBase64,      application_base64_filter}, */
 713          /* {wszAppMacbinhex40, application_macbinhex40_filter}, */
 714             {wszAppPdf,         application_pdf_filter},
 715          /* {wszAppXCompressed, application_xcompressed_filter}, */
 716             {wszAppXZip,        application_xzip_filter},
 717             {wszAppXGzip,       application_xgzip_filter},
 718             {wszAppJava,        application_java_filter},
 719             {wszAppXMSDownload, application_xmsdownload},
 720             {wszTextPlain,      text_plain_filter},
 721             {wszAppOctetStream, application_octet_stream_filter}
 722         };
 723
 724         if(!cbSize)
 725             return E_FAIL;
 726
 727         if(pwzMimeProposed && strcmpW(pwzMimeProposed, wszAppOctetStream)) {
 728             for(i=0; i < sizeof(mime_filters)/sizeof(*mime_filters); i++) {
 729                 if(!strcmpW(pwzMimeProposed, mime_filters[i].mime))
 730                     break;
 731             }
 732
 733             if(i == sizeof(mime_filters)/sizeof(*mime_filters)
 734                     || mime_filters[i].filter(buf, cbSize)) {
 735                 len = strlenW(pwzMimeProposed)+1;
 736                 *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 737                 memcpy(*ppwzMimeOut, pwzMimeProposed, len*sizeof(WCHAR));
 738                 return S_OK;
 739             }
 740         }
 741
 742         i=0;
 743         while(!ret) {
 744             if(mime_filters[i].filter(buf, cbSize))
 745                 ret = mime_filters[i].mime;
 746             i++;
 747         }
 748
 749         TRACE("found %s for data\n"
 750               "%02x %02x %02x %02x  %02x %02x %02x %02x  %02x %02x %02x %02x  %02x %02x %02x %02x\n",
 751               debugstr_w(ret), buf[0],buf[1],buf[2],buf[3], buf[4],buf[5],buf[6],buf[7],
 752               buf[8],buf[9],buf[10],buf[11], buf[12],buf[13],buf[14],buf[15]);
 753
 754         if(pwzMimeProposed) {
 755             if(i == sizeof(mime_filters)/sizeof(*mime_filters))
 756                 ret = pwzMimeProposed;
 757
 758             /* text/html is a special case */
 759             if(!strcmpW(pwzMimeProposed, wszTextHtml) && !strcmpW(ret, wszTextPlain))
 760                 ret = wszTextHtml;
 761         }
 762
 763         len = strlenW(ret)+1;
 764         *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 765         memcpy(*ppwzMimeOut, ret, len*sizeof(WCHAR));
 766         return S_OK;
 767     }
 768
 769     if(pwzUrl) {
 770         HKEY hkey;
 771         DWORD res, size;
 772         LPCWSTR ptr;
 773         WCHAR mime[64];
 774
 775         static const WCHAR wszContentType[] =
 776                 {'C','o','n','t','e','n','t',' ','T','y','p','e','\0'};
 777
 778         ptr = strrchrW(pwzUrl, '.');
 779         if(!ptr)
 780             return E_FAIL;
 781
 782         res = RegOpenKeyW(HKEY_CLASSES_ROOT, ptr, &hkey);
 783         if(res != ERROR_SUCCESS)
 784             return HRESULT_FROM_WIN32(res);
 785
 786         size = sizeof(mime);
 787         res = RegQueryValueExW(hkey, wszContentType, NULL, NULL, (LPBYTE)mime, &size);
 788         RegCloseKey(hkey);
 789         if(res != ERROR_SUCCESS)
 790             return HRESULT_FROM_WIN32(res);
 791
 792         *ppwzMimeOut = CoTaskMemAlloc(size);
 793         memcpy(*ppwzMimeOut, mime, size);
 794         return S_OK;
 795     }
 796
 797     return E_FAIL;
 798 }
 799
 800 /***********************************************************************
 801  *           GetClassFileOrMime (URLMON.@)
 802  *
 803  * Determines the class ID from the bind context, file name or MIME type.
 804  */
 805 HRESULT WINAPI GetClassFileOrMime(LPBC pBC, LPCWSTR pszFilename,
 806         LPVOID pBuffer, DWORD cbBuffer, LPCWSTR pszMimeType, DWORD dwReserved,
 807         CLSID *pclsid)
 808 {
 809     FIXME("(%p, %s, %p, %d, %p, 0x%08x, %p): stub\n", pBC,
 810         debugstr_w(pszFilename), pBuffer, cbBuffer, debugstr_w(pszMimeType),
 811         dwReserved, pclsid);
 812     return E_NOTIMPL;
 813 }
 814
 815 /***********************************************************************
 816  * Extract (URLMON.@)
 817  */
 818 HRESULT WINAPI Extract(void *dest, LPCSTR szCabName)
 819 {
 820     HRESULT (WINAPI *pExtract)(void *, LPCSTR);
 821
 822     if (!hCabinet)
 823         hCabinet = LoadLibraryA("cabinet.dll");
 824
 825     if (!hCabinet) return HRESULT_FROM_WIN32(GetLastError());
 826     pExtract = (void *)GetProcAddress(hCabinet, "Extract");
 827     if (!pExtract) return HRESULT_FROM_WIN32(GetLastError());
 828
 829     return pExtract(dest, szCabName);
 830 }
 831
 832 /***********************************************************************
 833  *           IsLoggingEnabledA (URLMON.@)
 834  */
 835 BOOL WINAPI IsLoggingEnabledA(LPCSTR url)
 836 {
 837     FIXME("(%s)\n", debugstr_a(url));
 838     return FALSE;
 839 }
 840
 841 /***********************************************************************
 842  *           IsLoggingEnabledW (URLMON.@)
 843  */
 844 BOOL WINAPI IsLoggingEnabledW(LPCWSTR url)
 845 {
 846     FIXME("(%s)\n", debugstr_w(url));
 847     return FALSE;
 848 }