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
  40 static void init_session(BOOL);
  41
  42 /***********************************************************************
  43  *              DllMain (URLMON.init)
  44  */
  45 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
  46 {
  47     TRACE("%p 0x%x %p\n", hinstDLL, fdwReason, fImpLoad);
  48
  49     switch(fdwReason) {
  50     case DLL_PROCESS_ATTACH:
  51         DisableThreadLibraryCalls(hinstDLL);
  52         URLMON_hInstance = hinstDLL;
  53         init_session(TRUE);
  54         break;
  55
  56     case DLL_PROCESS_DETACH:
  57         if (hCabinet)
  58             FreeLibrary(hCabinet);
  59         hCabinet = NULL;
  60         init_session(FALSE);
  61         URLMON_hInstance = 0;
  62         break;
  63     }
  64     return TRUE;
  65 }
  66
  67
  68 /***********************************************************************
  69  *              DllInstall (URLMON.@)
  70  */
  71 HRESULT WINAPI DllInstall(BOOL bInstall, LPCWSTR cmdline)
  72 {
  73   FIXME("(%s, %s): stub\n", bInstall?"TRUE":"FALSE",
  74         debugstr_w(cmdline));
  75
  76   return S_OK;
  77 }
  78
  79 /***********************************************************************
  80  *              DllCanUnloadNow (URLMON.@)
  81  */
  82 HRESULT WINAPI DllCanUnloadNow(void)
  83 {
  84     return URLMON_refCount != 0 ? S_FALSE : S_OK;
  85 }
  86
  87
  88
  89 /******************************************************************************
  90  * Urlmon ClassFactory
  91  */
  92 typedef struct {
  93     const IClassFactoryVtbl *lpClassFactoryVtbl;
  94
  95     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
  96 } ClassFactory;
  97
  98 #define CLASSFACTORY(x)  ((IClassFactory*)  &(x)->lpClassFactoryVtbl)
  99
 100 static HRESULT WINAPI CF_QueryInterface(IClassFactory *iface, REFIID riid, LPVOID *ppv)
 101 {
 102     *ppv = NULL;
 103
 104     if(IsEqualGUID(riid, &IID_IUnknown)) {
 105         TRACE("(%p)->(IID_IUnknown %p)\n", iface, ppv);
 106         *ppv = iface;
 107     }else if(IsEqualGUID(riid, &IID_IClassFactory)) {
 108         TRACE("(%p)->(IID_IClassFactory %p)\n", iface, ppv);
 109         *ppv = iface;
 110     }
 111
 112     if(*ppv) {
 113         IUnknown_AddRef((IUnknown*)*ppv);
 114         return S_OK;
 115     }
 116
 117     WARN("(%p)->(%s,%p),not found\n", iface, debugstr_guid(riid), ppv);
 118     return E_NOINTERFACE;
 119 }
 120
 121 static ULONG WINAPI CF_AddRef(IClassFactory *iface)
 122 {
 123     URLMON_LockModule();
 124     return 2;
 125 }
 126
 127 static ULONG WINAPI CF_Release(IClassFactory *iface)
 128 {
 129     URLMON_UnlockModule();
 130     return 1;
 131 }
 132
 133
 134 static HRESULT WINAPI CF_CreateInstance(IClassFactory *iface, IUnknown *pOuter,
 135                                         REFIID riid, LPVOID *ppobj)
 136 {
 137     ClassFactory *This = (ClassFactory*)iface;
 138     HRESULT hres;
 139     LPUNKNOWN punk;
 140
 141     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 142
 143     *ppobj = NULL;
 144     if(SUCCEEDED(hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk))) {
 145         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 146         IUnknown_Release(punk);
 147     }
 148     return hres;
 149 }
 150
 151 static HRESULT WINAPI CF_LockServer(LPCLASSFACTORY iface,BOOL dolock)
 152 {
 153     TRACE("(%d)\n", dolock);
 154
 155     if (dolock)
 156            URLMON_LockModule();
 157     else
 158            URLMON_UnlockModule();
 159
 160     return S_OK;
 161 }
 162
 163 static const IClassFactoryVtbl ClassFactoryVtbl =
 164 {
 165     CF_QueryInterface,
 166     CF_AddRef,
 167     CF_Release,
 168     CF_CreateInstance,
 169     CF_LockServer
 170 };
 171
 172 static const ClassFactory FileProtocolCF =
 173     { &ClassFactoryVtbl, FileProtocol_Construct};
 174 static const ClassFactory FtpProtocolCF =
 175     { &ClassFactoryVtbl, FtpProtocol_Construct};
 176 static const ClassFactory HttpProtocolCF =
 177     { &ClassFactoryVtbl, HttpProtocol_Construct};
 178 static const ClassFactory HttpSProtocolCF =
 179     { &ClassFactoryVtbl, HttpSProtocol_Construct};
 180 static const ClassFactory MkProtocolCF =
 181     { &ClassFactoryVtbl, MkProtocol_Construct};
 182 static const ClassFactory SecurityManagerCF =
 183     { &ClassFactoryVtbl, SecManagerImpl_Construct};
 184 static const ClassFactory ZoneManagerCF =
 185     { &ClassFactoryVtbl, ZoneMgrImpl_Construct};
 186
 187 struct object_creation_info
 188 {
 189     const CLSID *clsid;
 190     IClassFactory *cf;
 191     LPCWSTR protocol;
 192 };
 193
 194 static const WCHAR wszFile[] = {'f','i','l','e',0};
 195 static const WCHAR wszFtp[]  = {'f','t','p',0};
 196 static const WCHAR wszHttp[] = {'h','t','t','p',0};
 197 static const WCHAR wszHttps[] = {'h','t','t','p','s',0};
 198 static const WCHAR wszMk[]   = {'m','k',0};
 199
 200 static const struct object_creation_info object_creation[] =
 201 {
 202     { &CLSID_FileProtocol,            CLASSFACTORY(&FileProtocolCF),    wszFile },
 203     { &CLSID_FtpProtocol,             CLASSFACTORY(&FtpProtocolCF),     wszFtp  },
 204     { &CLSID_HttpProtocol,            CLASSFACTORY(&HttpProtocolCF),    wszHttp },
 205     { &CLSID_HttpSProtocol,           CLASSFACTORY(&HttpSProtocolCF),   wszHttps },
 206     { &CLSID_MkProtocol,              CLASSFACTORY(&MkProtocolCF),      wszMk },
 207     { &CLSID_InternetSecurityManager, CLASSFACTORY(&SecurityManagerCF), NULL    },
 208     { &CLSID_InternetZoneManager,     CLASSFACTORY(&ZoneManagerCF),     NULL    }
 209 };
 210
 211 static void init_session(BOOL init)
 212 {
 213     unsigned int i;
 214
 215     for(i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++) {
 216
 217         if(object_creation[i].protocol)
 218             register_urlmon_namespace(object_creation[i].cf, object_creation[i].clsid,
 219                                       object_creation[i].protocol, init);
 220     }
 221 }
 222
 223 /*******************************************************************************
 224  * DllGetClassObject [URLMON.@]
 225  * Retrieves class object from a DLL object
 226  *
 227  * NOTES
 228  *    Docs say returns STDAPI
 229  *
 230  * PARAMS
 231  *    rclsid [I] CLSID for the class object
 232  *    riid   [I] Reference to identifier of interface for class object
 233  *    ppv    [O] Address of variable to receive interface pointer for riid
 234  *
 235  * RETURNS
 236  *    Success: S_OK
 237  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 238  *             E_UNEXPECTED
 239  */
 240
 241 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 242 {
 243     unsigned int i;
 244
 245     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 246
 247     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 248     {
 249         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 250             return IClassFactory_QueryInterface(object_creation[i].cf, riid, ppv);
 251     }
 252
 253     FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 254     return CLASS_E_CLASSNOTAVAILABLE;
 255 }
 256
 257
 258 /***********************************************************************
 259  *              DllRegisterServerEx (URLMON.@)
 260  */
 261 HRESULT WINAPI DllRegisterServerEx(void)
 262 {
 263     FIXME("(void): stub\n");
 264
 265     return E_FAIL;
 266 }
 267
 268 /**************************************************************************
 269  *                 UrlMkSetSessionOption (URLMON.@)
 270  */
 271 HRESULT WINAPI UrlMkSetSessionOption(DWORD dwOption, LPVOID pBuffer, DWORD dwBufferLength,
 272                                         DWORD Reserved)
 273 {
 274     FIXME("(%#x, %p, %#x): stub\n", dwOption, pBuffer, dwBufferLength);
 275
 276     return S_OK;
 277 }
 278
 279 static const CHAR Agent[] = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)";
 280
 281 /**************************************************************************
 282  *                 ObtainUserAgentString (URLMON.@)
 283  */
 284 HRESULT WINAPI ObtainUserAgentString(DWORD dwOption, LPSTR pcszUAOut, DWORD *cbSize)
 285 {
 286     FIXME("(%d, %p, %p): stub\n", dwOption, pcszUAOut, cbSize);
 287
 288     if (pcszUAOut == NULL || cbSize == NULL)
 289         return E_INVALIDARG;
 290
 291     if (*cbSize < sizeof(Agent))
 292     {
 293         *cbSize = sizeof(Agent);
 294         return E_OUTOFMEMORY;
 295     }
 296
 297     if (sizeof(Agent) < *cbSize)
 298         *cbSize = sizeof(Agent);
 299     lstrcpynA(pcszUAOut, Agent, *cbSize);
 300
 301     return S_OK;
 302 }
 303
 304 /**************************************************************************
 305  *                 IsValidURL (URLMON.@)
 306  *
 307  * Determines if a specified string is a valid URL.
 308  *
 309  * PARAMS
 310  *  pBC        [I] ignored, must be NULL.
 311  *  szURL      [I] string that represents the URL in question.
 312  *  dwReserved [I] reserved and must be zero.
 313  *
 314  * RETURNS
 315  *  Success: S_OK.
 316  *  Failure: S_FALSE.
 317  *  returns E_INVALIDARG if one or more of the args is invalid.
 318  *
 319  * TODO:
 320  *  test functionality against windows to see what a valid URL is.
 321  */
 322 HRESULT WINAPI IsValidURL(LPBC pBC, LPCWSTR szURL, DWORD dwReserved)
 323 {
 324     FIXME("(%p, %s, %d): stub\n", pBC, debugstr_w(szURL), dwReserved);
 325
 326     if (pBC != NULL || dwReserved != 0)
 327         return E_INVALIDARG;
 328
 329     return S_OK;
 330 }
 331
 332 /**************************************************************************
 333  *                 FaultInIEFeature (URLMON.@)
 334  *
 335  *  Undocumented.  Appears to be used by native shdocvw.dll.
 336  */
 337 HRESULT WINAPI FaultInIEFeature( HWND hwnd, uCLSSPEC * pClassSpec,
 338                                  QUERYCONTEXT *pQuery, DWORD flags )
 339 {
 340     FIXME("%p %p %p %08x\n", hwnd, pClassSpec, pQuery, flags);
 341     return E_NOTIMPL;
 342 }
 343
 344 /**************************************************************************
 345  *                 CoGetClassObjectFromURL (URLMON.@)
 346  */
 347 HRESULT WINAPI CoGetClassObjectFromURL( REFCLSID rclsid, LPCWSTR szCodeURL, DWORD dwFileVersionMS,
 348                                         DWORD dwFileVersionLS, LPCWSTR szContentType,
 349                                         LPBINDCTX pBindCtx, DWORD dwClsContext, LPVOID pvReserved,
 350                                         REFIID riid, LPVOID *ppv )
 351 {
 352     FIXME("(%s %s %d %d %s %p %d %p %s %p) Stub!\n", debugstr_guid(rclsid), debugstr_w(szCodeURL),
 353         dwFileVersionMS, dwFileVersionLS, debugstr_w(szContentType), pBindCtx, dwClsContext, pvReserved,
 354         debugstr_guid(riid), ppv);
 355     return E_NOINTERFACE;
 356 }
 357
 358 /***********************************************************************
 359  *           ReleaseBindInfo (URLMON.@)
 360  *
 361  * Release the resources used by the specified BINDINFO structure.
 362  *
 363  * PARAMS
 364  *  pbindinfo [I] BINDINFO to release.
 365  *
 366  * RETURNS
 367  *  Nothing.
 368  */
 369 void WINAPI ReleaseBindInfo(BINDINFO* pbindinfo)
 370 {
 371     DWORD size;
 372
 373     TRACE("(%p)\n", pbindinfo);
 374
 375     if(!pbindinfo || !(size = pbindinfo->cbSize))
 376         return;
 377
 378     CoTaskMemFree(pbindinfo->szExtraInfo);
 379     ReleaseStgMedium(&pbindinfo->stgmedData);
 380
 381     if(offsetof(BINDINFO, szExtraInfo) < size)
 382         CoTaskMemFree(pbindinfo->szCustomVerb);
 383
 384     if(pbindinfo->pUnk && offsetof(BINDINFO, pUnk) < size)
 385         IUnknown_Release(pbindinfo->pUnk);
 386
 387     memset(pbindinfo, 0, size);
 388     pbindinfo->cbSize = size;
 389 }
 390
 391 /***********************************************************************
 392  *           CopyStgMedium (URLMON.@)
 393  */
 394 HRESULT WINAPI CopyStgMedium(const STGMEDIUM *src, STGMEDIUM *dst)
 395 {
 396     TRACE("(%p %p)\n", src, dst);
 397
 398     if(!src || !dst)
 399         return E_POINTER;
 400
 401     *dst = *src;
 402
 403     switch(dst->tymed) {
 404     case TYMED_NULL:
 405         break;
 406     case TYMED_FILE:
 407         if(src->u.lpszFileName && !src->pUnkForRelease) {
 408             DWORD size = (strlenW(src->u.lpszFileName)+1)*sizeof(WCHAR);
 409             dst->u.lpszFileName = CoTaskMemAlloc(size);
 410             memcpy(dst->u.lpszFileName, src->u.lpszFileName, size);
 411         }
 412         break;
 413     case TYMED_ISTREAM:
 414         if(dst->u.pstm)
 415             IStream_AddRef(dst->u.pstm);
 416         break;
 417     case TYMED_ISTORAGE:
 418         if(dst->u.pstg)
 419             IStorage_AddRef(dst->u.pstg);
 420         break;
 421     default:
 422         FIXME("Unimplemented tymed %d\n", src->tymed);
 423     }
 424
 425     if(dst->pUnkForRelease)
 426         IUnknown_AddRef(dst->pUnkForRelease);
 427
 428     return S_OK;
 429 }
 430
 431 static BOOL text_richtext_filter(const BYTE *b, DWORD size)
 432 {
 433     return size > 5 && !memcmp(b, "{\\rtf", 5);
 434 }
 435
 436 static BOOL text_html_filter(const BYTE *b, DWORD size)
 437 {
 438     DWORD i;
 439
 440     if(size < 5)
 441         return FALSE;
 442
 443     for(i=0; i < size-5; i++) {
 444         if(b[i] == '<'
 445            && (b[i+1] == 'h' || b[i+1] == 'H')
 446            && (b[i+2] == 't' || b[i+2] == 'T')
 447            && (b[i+3] == 'm' || b[i+3] == 'M')
 448            && (b[i+4] == 'l' || b[i+4] == 'L'))
 449             return TRUE;
 450     }
 451
 452     return FALSE;
 453 }
 454
 455 static BOOL audio_basic_filter(const BYTE *b, DWORD size)
 456 {
 457     return size > 4
 458         && b[0] == '.' && b[1] == 's' && b[2] == 'n' && b[3] == 'd';
 459 }
 460
 461 static BOOL audio_wav_filter(const BYTE *b, DWORD size)
 462 {
 463     return size > 12
 464         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 465         && b[8] == 'W' && b[9] == 'A' && b[10] == 'V' && b[11] == 'E';
 466 }
 467
 468 static BOOL image_gif_filter(const BYTE *b, DWORD size)
 469 {
 470     return size >= 6
 471         && (b[0] == 'G' || b[0] == 'g')
 472         && (b[1] == 'I' || b[1] == 'i')
 473         && (b[2] == 'F' || b[2] == 'f')
 474         &&  b[3] == '8'
 475         && (b[4] == '7' || b[4] == '9')
 476         && (b[5] == 'A' || b[5] == 'a');
 477 }
 478
 479 static BOOL image_pjpeg_filter(const BYTE *b, DWORD size)
 480 {
 481     return size > 2 && b[0] == 0xff && b[1] == 0xd8;
 482 }
 483
 484 static BOOL image_tiff_filter(const BYTE *b, DWORD size)
 485 {
 486     return size > 2 && b[0] == 0x4d && b[1] == 0x4d;
 487 }
 488
 489 static BOOL image_xpng_filter(const BYTE *b, DWORD size)
 490 {
 491     static const BYTE xpng_header[] = {0x89,'P','N','G',0x0d,0x0a,0x1a,0x0a};
 492     return size > sizeof(xpng_header) && !memcmp(b, xpng_header, sizeof(xpng_header));
 493 }
 494
 495 static BOOL image_bmp_filter(const BYTE *b, DWORD size)
 496 {
 497     return size >= 14
 498         && b[0] == 0x42 && b[1] == 0x4d
 499         && *(const DWORD *)(b+6) == 0;
 500 }
 501
 502 static BOOL video_avi_filter(const BYTE *b, DWORD size)
 503 {
 504     return size > 12
 505         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 506         && b[8] == 'A' && b[9] == 'V' && b[10] == 'I' && b[11] == 0x20;
 507 }
 508
 509 static BOOL video_mpeg_filter(const BYTE *b, DWORD size)
 510 {
 511     return size > 4
 512         && !b[0] && !b[1] && b[2] == 0x01
 513         && (b[3] == 0xb3 || b[3] == 0xba);
 514 }
 515
 516 static BOOL application_postscript_filter(const BYTE *b, DWORD size)
 517 {
 518     return size > 2 && b[0] == '%' && b[1] == '!';
 519 }
 520
 521 static BOOL application_pdf_filter(const BYTE *b, DWORD size)
 522 {
 523     return size > 4 && b[0] == 0x25 && b[1] == 0x50 && b[2] == 0x44 && b[3] == 0x46;
 524 }
 525
 526 static BOOL application_xzip_filter(const BYTE *b, DWORD size)
 527 {
 528     return size > 2 && b[0] == 0x50 && b[1] == 0x4b;
 529 }
 530
 531 static BOOL application_xgzip_filter(const BYTE *b, DWORD size)
 532 {
 533     return size > 2 && b[0] == 0x1f && b[1] == 0x8b;
 534 }
 535
 536 static BOOL application_java_filter(const BYTE *b, DWORD size)
 537 {
 538     return size > 4 && b[0] == 0xca && b[1] == 0xfe && b[2] == 0xba && b[3] == 0xbe;
 539 }
 540
 541 static BOOL application_xmsdownload(const BYTE *b, DWORD size)
 542 {
 543     return size > 2 && b[0] == 'M' && b[1] == 'Z';
 544 }
 545
 546 static BOOL text_plain_filter(const BYTE *b, DWORD size)
 547 {
 548     const BYTE *ptr;
 549
 550     for(ptr = b; ptr < b+size-1; ptr++) {
 551         if(*ptr < 0x20 && *ptr != '\n' && *ptr != '\r' && *ptr != '\t')
 552             return FALSE;
 553     }
 554
 555     return TRUE;
 556 }
 557
 558 static BOOL application_octet_stream_filter(const BYTE *b, DWORD size)
 559 {
 560     return TRUE;
 561 }
 562
 563 /***********************************************************************
 564  *           FindMimeFromData (URLMON.@)
 565  *
 566  * Determines the Multipurpose Internet Mail Extensions (MIME) type from the data provided.
 567  */
 568 HRESULT WINAPI FindMimeFromData(LPBC pBC, LPCWSTR pwzUrl, LPVOID pBuffer,
 569         DWORD cbSize, LPCWSTR pwzMimeProposed, DWORD dwMimeFlags,
 570         LPWSTR* ppwzMimeOut, DWORD dwReserved)
 571 {
 572     TRACE("(%p,%s,%p,%d,%s,0x%x,%p,0x%x)\n", pBC, debugstr_w(pwzUrl), pBuffer, cbSize,
 573             debugstr_w(pwzMimeProposed), dwMimeFlags, ppwzMimeOut, dwReserved);
 574
 575     if(dwMimeFlags)
 576         WARN("dwMimeFlags=%08x\n", dwMimeFlags);
 577     if(dwReserved)
 578         WARN("dwReserved=%d\n", dwReserved);
 579
 580     /* pBC seams to not be used */
 581
 582     if(!ppwzMimeOut || (!pwzUrl && !pBuffer))
 583         return E_INVALIDARG;
 584
 585     if(pwzMimeProposed && (!pBuffer || (pBuffer && !cbSize))) {
 586         DWORD len;
 587
 588         if(!pwzMimeProposed)
 589             return E_FAIL;
 590
 591         len = strlenW(pwzMimeProposed)+1;
 592         *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 593         memcpy(*ppwzMimeOut, pwzMimeProposed, len*sizeof(WCHAR));
 594         return S_OK;
 595     }
 596
 597     if(pBuffer) {
 598         const BYTE *buf = pBuffer;
 599         DWORD len;
 600         LPCWSTR ret = NULL;
 601         unsigned int i;
 602
 603         static const WCHAR wszTextHtml[] = {'t','e','x','t','/','h','t','m','l',0};
 604         static const WCHAR wszTextRichtext[] = {'t','e','x','t','/','r','i','c','h','t','e','x','t',0};
 605         static const WCHAR wszAudioBasic[] = {'a','u','d','i','o','/','b','a','s','i','c',0};
 606         static const WCHAR wszAudioWav[] = {'a','u','d','i','o','/','w','a','v',0};
 607         static const WCHAR wszImageGif[] = {'i','m','a','g','e','/','g','i','f',0};
 608         static const WCHAR wszImagePjpeg[] = {'i','m','a','g','e','/','p','j','p','e','g',0};
 609         static const WCHAR wszImageTiff[] = {'i','m','a','g','e','/','t','i','f','f',0};
 610         static const WCHAR wszImageXPng[] = {'i','m','a','g','e','/','x','-','p','n','g',0};
 611         static const WCHAR wszImageBmp[] = {'i','m','a','g','e','/','b','m','p',0};
 612         static const WCHAR wszVideoAvi[] = {'v','i','d','e','o','/','a','v','i',0};
 613         static const WCHAR wszVideoMpeg[] = {'v','i','d','e','o','/','m','p','e','g',0};
 614         static const WCHAR wszAppPostscript[] =
 615             {'a','p','p','l','i','c','a','t','i','o','n','/','p','o','s','t','s','c','r','i','p','t',0};
 616         static const WCHAR wszAppPdf[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 617             'p','d','f',0};
 618         static const WCHAR wszAppXZip[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 619             'x','-','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 620         static const WCHAR wszAppXGzip[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 621             'x','-','g','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 622         static const WCHAR wszAppJava[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 623             'j','a','v','a',0};
 624         static const WCHAR wszAppXMSDownload[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 625             'x','-','m','s','d','o','w','n','l','o','a','d',0};
 626         static const WCHAR wszTextPlain[] = {'t','e','x','t','/','p','l','a','i','n','\0'};
 627         static const WCHAR wszAppOctetStream[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 628             'o','c','t','e','t','-','s','t','r','e','a','m','\0'};
 629
 630         static const struct {
 631             LPCWSTR mime;
 632             BOOL (*filter)(const BYTE *,DWORD);
 633         } mime_filters[] = {
 634             {wszTextHtml,       text_html_filter},
 635             {wszTextRichtext,   text_richtext_filter},
 636          /* {wszAudioXAiff,     audio_xaiff_filter}, */
 637             {wszAudioBasic,     audio_basic_filter},
 638             {wszAudioWav,       audio_wav_filter},
 639             {wszImageGif,       image_gif_filter},
 640             {wszImagePjpeg,     image_pjpeg_filter},
 641             {wszImageTiff,      image_tiff_filter},
 642             {wszImageXPng,      image_xpng_filter},
 643          /* {wszImageXBitmap,   image_xbitmap_filter}, */
 644             {wszImageBmp,       image_bmp_filter},
 645          /* {wszImageXJg,       image_xjg_filter}, */
 646          /* {wszImageXEmf,      image_xemf_filter}, */
 647          /* {wszImageXWmf,      image_xwmf_filter}, */
 648             {wszVideoAvi,       video_avi_filter},
 649             {wszVideoMpeg,      video_mpeg_filter},
 650             {wszAppPostscript,  application_postscript_filter},
 651          /* {wszAppBase64,      application_base64_filter}, */
 652          /* {wszAppMacbinhex40, application_macbinhex40_filter}, */
 653             {wszAppPdf,         application_pdf_filter},
 654          /* {wszAppXCompressed, application_xcompressed_filter}, */
 655             {wszAppXZip,        application_xzip_filter},
 656             {wszAppXGzip,       application_xgzip_filter},
 657             {wszAppJava,        application_java_filter},
 658             {wszAppXMSDownload, application_xmsdownload},
 659             {wszTextPlain,      text_plain_filter},
 660             {wszAppOctetStream, application_octet_stream_filter}
 661         };
 662
 663         if(!cbSize)
 664             return E_FAIL;
 665
 666         if(pwzMimeProposed && strcmpW(pwzMimeProposed, wszAppOctetStream)) {
 667             for(i=0; i < sizeof(mime_filters)/sizeof(*mime_filters); i++) {
 668                 if(!strcmpW(pwzMimeProposed, mime_filters[i].mime))
 669                     break;
 670             }
 671
 672             if(i == sizeof(mime_filters)/sizeof(*mime_filters)
 673                     || mime_filters[i].filter(buf, cbSize)) {
 674                 len = strlenW(pwzMimeProposed)+1;
 675                 *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 676                 memcpy(*ppwzMimeOut, pwzMimeProposed, len*sizeof(WCHAR));
 677                 return S_OK;
 678             }
 679         }
 680
 681         i=0;
 682         while(!ret) {
 683             if(mime_filters[i].filter(buf, cbSize))
 684                 ret = mime_filters[i].mime;
 685             i++;
 686         }
 687
 688         TRACE("found %s for data\n"
 689               "%02x %02x %02x %02x  %02x %02x %02x %02x  %02x %02x %02x %02x  %02x %02x %02x %02x\n",
 690               debugstr_w(ret), buf[0],buf[1],buf[2],buf[3], buf[4],buf[5],buf[6],buf[7],
 691               buf[8],buf[9],buf[10],buf[11], buf[12],buf[13],buf[14],buf[15]);
 692
 693         if(pwzMimeProposed) {
 694             if(i == sizeof(mime_filters)/sizeof(*mime_filters))
 695                 ret = pwzMimeProposed;
 696
 697             /* text/html is a special case */
 698             if(!strcmpW(pwzMimeProposed, wszTextHtml) && !strcmpW(ret, wszTextPlain))
 699                 ret = wszTextHtml;
 700         }
 701
 702         len = strlenW(ret)+1;
 703         *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 704         memcpy(*ppwzMimeOut, ret, len*sizeof(WCHAR));
 705         return S_OK;
 706     }
 707
 708     if(pwzUrl) {
 709         HKEY hkey;
 710         DWORD res, size;
 711         LPCWSTR ptr;
 712         WCHAR mime[64];
 713
 714         static const WCHAR wszContentType[] =
 715                 {'C','o','n','t','e','n','t',' ','T','y','p','e','\0'};
 716
 717         ptr = strrchrW(pwzUrl, '.');
 718         if(!ptr)
 719             return E_FAIL;
 720
 721         res = RegOpenKeyW(HKEY_CLASSES_ROOT, ptr, &hkey);
 722         if(res != ERROR_SUCCESS)
 723             return HRESULT_FROM_WIN32(res);
 724
 725         size = sizeof(mime);
 726         res = RegQueryValueExW(hkey, wszContentType, NULL, NULL, (LPBYTE)mime, &size);
 727         RegCloseKey(hkey);
 728         if(res != ERROR_SUCCESS)
 729             return HRESULT_FROM_WIN32(res);
 730
 731         *ppwzMimeOut = CoTaskMemAlloc(size);
 732         memcpy(*ppwzMimeOut, mime, size);
 733         return S_OK;
 734     }
 735
 736     return E_FAIL;
 737 }
 738
 739 /***********************************************************************
 740  *           GetClassFileOrMime (URLMON.@)
 741  *
 742  * Determines the class ID from the bind context, file name or MIME type.
 743  */
 744 HRESULT WINAPI GetClassFileOrMime(LPBC pBC, LPCWSTR pszFilename,
 745         LPVOID pBuffer, DWORD cbBuffer, LPCWSTR pszMimeType, DWORD dwReserved,
 746         CLSID *pclsid)
 747 {
 748     FIXME("(%p, %s, %p, %d, %p, 0x%08x, %p): stub\n", pBC,
 749         debugstr_w(pszFilename), pBuffer, cbBuffer, debugstr_w(pszMimeType),
 750         dwReserved, pclsid);
 751     return E_NOTIMPL;
 752 }
 753
 754 /***********************************************************************
 755  * Extract (URLMON.@)
 756  */
 757 HRESULT WINAPI Extract(void *dest, LPCSTR szCabName)
 758 {
 759     HRESULT (WINAPI *pExtract)(void *, LPCSTR);
 760
 761     if (!hCabinet)
 762         hCabinet = LoadLibraryA("cabinet.dll");
 763
 764     if (!hCabinet) return HRESULT_FROM_WIN32(GetLastError());
 765     pExtract = (void *)GetProcAddress(hCabinet, "Extract");
 766     if (!pExtract) return HRESULT_FROM_WIN32(GetLastError());
 767
 768     return pExtract(dest, szCabName);
 769 }
 770
 771 /***********************************************************************
 772  *           IsLoggingEnabledA (URLMON.@)
 773  */
 774 BOOL WINAPI IsLoggingEnabledA(LPCSTR url)
 775 {
 776     FIXME("(%s)\n", debugstr_a(url));
 777     return FALSE;
 778 }
 779
 780 /***********************************************************************
 781  *           IsLoggingEnabledW (URLMON.@)
 782  */
 783 BOOL WINAPI IsLoggingEnabledW(LPCWSTR url)
 784 {
 785     FIXME("(%s)\n", debugstr_w(url));
 786     return FALSE;
 787 }