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
  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 GopherProtocolCF =
 177     { &ClassFactoryVtbl, GopherProtocol_Construct};
 178 static const ClassFactory HttpProtocolCF =
 179     { &ClassFactoryVtbl, HttpProtocol_Construct};
 180 static const ClassFactory HttpSProtocolCF =
 181     { &ClassFactoryVtbl, HttpSProtocol_Construct};
 182 static const ClassFactory MkProtocolCF =
 183     { &ClassFactoryVtbl, MkProtocol_Construct};
 184 static const ClassFactory SecurityManagerCF =
 185     { &ClassFactoryVtbl, SecManagerImpl_Construct};
 186 static const ClassFactory ZoneManagerCF =
 187     { &ClassFactoryVtbl, ZoneMgrImpl_Construct};
 188 static const ClassFactory StdURLMonikerCF =
 189     { &ClassFactoryVtbl, StdURLMoniker_Construct};
 190 static const ClassFactory MimeFilterCF =
 191     { &ClassFactoryVtbl, MimeFilter_Construct};
 192
 193 struct object_creation_info
 194 {
 195     const CLSID *clsid;
 196     IClassFactory *cf;
 197     LPCWSTR protocol;
 198 };
 199
 200 static const WCHAR wszFile[] = {'f','i','l','e',0};
 201 static const WCHAR wszFtp[]  = {'f','t','p',0};
 202 static const WCHAR wszGopher[]  = {'g','o','p','h','e','r',0};
 203 static const WCHAR wszHttp[] = {'h','t','t','p',0};
 204 static const WCHAR wszHttps[] = {'h','t','t','p','s',0};
 205 static const WCHAR wszMk[]   = {'m','k',0};
 206
 207 static const struct object_creation_info object_creation[] =
 208 {
 209     { &CLSID_FileProtocol,            CLASSFACTORY(&FileProtocolCF),    wszFile },
 210     { &CLSID_FtpProtocol,             CLASSFACTORY(&FtpProtocolCF),     wszFtp  },
 211     { &CLSID_GopherProtocol,          CLASSFACTORY(&GopherProtocolCF),  wszGopher },
 212     { &CLSID_HttpProtocol,            CLASSFACTORY(&HttpProtocolCF),    wszHttp },
 213     { &CLSID_HttpSProtocol,           CLASSFACTORY(&HttpSProtocolCF),   wszHttps },
 214     { &CLSID_MkProtocol,              CLASSFACTORY(&MkProtocolCF),      wszMk },
 215     { &CLSID_InternetSecurityManager, CLASSFACTORY(&SecurityManagerCF), NULL    },
 216     { &CLSID_InternetZoneManager,     CLASSFACTORY(&ZoneManagerCF),     NULL    },
 217     { &CLSID_StdURLMoniker,           CLASSFACTORY(&StdURLMonikerCF),   NULL    },
 218     { &CLSID_DeCompMimeFilter,        CLASSFACTORY(&MimeFilterCF),      NULL    }
 219 };
 220
 221 static void init_session(BOOL init)
 222 {
 223     unsigned int i;
 224
 225     for(i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++) {
 226
 227         if(object_creation[i].protocol)
 228             register_urlmon_namespace(object_creation[i].cf, object_creation[i].clsid,
 229                                       object_creation[i].protocol, init);
 230     }
 231 }
 232
 233 /*******************************************************************************
 234  * DllGetClassObject [URLMON.@]
 235  * Retrieves class object from a DLL object
 236  *
 237  * NOTES
 238  *    Docs say returns STDAPI
 239  *
 240  * PARAMS
 241  *    rclsid [I] CLSID for the class object
 242  *    riid   [I] Reference to identifier of interface for class object
 243  *    ppv    [O] Address of variable to receive interface pointer for riid
 244  *
 245  * RETURNS
 246  *    Success: S_OK
 247  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 248  *             E_UNEXPECTED
 249  */
 250
 251 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 252 {
 253     unsigned int i;
 254
 255     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 256
 257     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 258     {
 259         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 260             return IClassFactory_QueryInterface(object_creation[i].cf, riid, ppv);
 261     }
 262
 263     FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 264     return CLASS_E_CLASSNOTAVAILABLE;
 265 }
 266
 267
 268 /***********************************************************************
 269  *              DllRegisterServerEx (URLMON.@)
 270  */
 271 HRESULT WINAPI DllRegisterServerEx(void)
 272 {
 273     FIXME("(void): stub\n");
 274
 275     return E_FAIL;
 276 }
 277
 278 /**************************************************************************
 279  *                 UrlMkSetSessionOption (URLMON.@)
 280  */
 281 HRESULT WINAPI UrlMkSetSessionOption(DWORD dwOption, LPVOID pBuffer, DWORD dwBufferLength,
 282                                         DWORD Reserved)
 283 {
 284     FIXME("(%#x, %p, %#x): stub\n", dwOption, pBuffer, dwBufferLength);
 285
 286     return S_OK;
 287 }
 288
 289 static const CHAR Agent[] = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)";
 290
 291 /**************************************************************************
 292  *                 ObtainUserAgentString (URLMON.@)
 293  */
 294 HRESULT WINAPI ObtainUserAgentString(DWORD dwOption, LPSTR pcszUAOut, DWORD *cbSize)
 295 {
 296     FIXME("(%d, %p, %p): stub\n", dwOption, pcszUAOut, cbSize);
 297
 298     if (pcszUAOut == NULL || cbSize == NULL)
 299         return E_INVALIDARG;
 300
 301     if (*cbSize < sizeof(Agent))
 302     {
 303         *cbSize = sizeof(Agent);
 304         return E_OUTOFMEMORY;
 305     }
 306
 307     if (sizeof(Agent) < *cbSize)
 308         *cbSize = sizeof(Agent);
 309     lstrcpynA(pcszUAOut, Agent, *cbSize);
 310
 311     return S_OK;
 312 }
 313
 314 /**************************************************************************
 315  *                 IsValidURL (URLMON.@)
 316  *
 317  * Determines if a specified string is a valid URL.
 318  *
 319  * PARAMS
 320  *  pBC        [I] ignored, must be NULL.
 321  *  szURL      [I] string that represents the URL in question.
 322  *  dwReserved [I] reserved and must be zero.
 323  *
 324  * RETURNS
 325  *  Success: S_OK.
 326  *  Failure: S_FALSE.
 327  *  returns E_INVALIDARG if one or more of the args is invalid.
 328  *
 329  * TODO:
 330  *  test functionality against windows to see what a valid URL is.
 331  */
 332 HRESULT WINAPI IsValidURL(LPBC pBC, LPCWSTR szURL, DWORD dwReserved)
 333 {
 334     FIXME("(%p, %s, %d): stub\n", pBC, debugstr_w(szURL), dwReserved);
 335
 336     if (pBC != NULL || dwReserved != 0)
 337         return E_INVALIDARG;
 338
 339     return S_OK;
 340 }
 341
 342 /**************************************************************************
 343  *                 FaultInIEFeature (URLMON.@)
 344  *
 345  *  Undocumented.  Appears to be used by native shdocvw.dll.
 346  */
 347 HRESULT WINAPI FaultInIEFeature( HWND hwnd, uCLSSPEC * pClassSpec,
 348                                  QUERYCONTEXT *pQuery, DWORD flags )
 349 {
 350     FIXME("%p %p %p %08x\n", hwnd, pClassSpec, pQuery, flags);
 351     return E_NOTIMPL;
 352 }
 353
 354 /**************************************************************************
 355  *                 CoGetClassObjectFromURL (URLMON.@)
 356  */
 357 HRESULT WINAPI CoGetClassObjectFromURL( REFCLSID rclsid, LPCWSTR szCodeURL, DWORD dwFileVersionMS,
 358                                         DWORD dwFileVersionLS, LPCWSTR szContentType,
 359                                         LPBINDCTX pBindCtx, DWORD dwClsContext, LPVOID pvReserved,
 360                                         REFIID riid, LPVOID *ppv )
 361 {
 362     FIXME("(%s %s %d %d %s %p %d %p %s %p) Stub!\n", debugstr_guid(rclsid), debugstr_w(szCodeURL),
 363         dwFileVersionMS, dwFileVersionLS, debugstr_w(szContentType), pBindCtx, dwClsContext, pvReserved,
 364         debugstr_guid(riid), ppv);
 365     return E_NOINTERFACE;
 366 }
 367
 368 /***********************************************************************
 369  *           ReleaseBindInfo (URLMON.@)
 370  *
 371  * Release the resources used by the specified BINDINFO structure.
 372  *
 373  * PARAMS
 374  *  pbindinfo [I] BINDINFO to release.
 375  *
 376  * RETURNS
 377  *  Nothing.
 378  */
 379 void WINAPI ReleaseBindInfo(BINDINFO* pbindinfo)
 380 {
 381     DWORD size;
 382
 383     TRACE("(%p)\n", pbindinfo);
 384
 385     if(!pbindinfo || !(size = pbindinfo->cbSize))
 386         return;
 387
 388     CoTaskMemFree(pbindinfo->szExtraInfo);
 389     ReleaseStgMedium(&pbindinfo->stgmedData);
 390
 391     if(offsetof(BINDINFO, szExtraInfo) < size)
 392         CoTaskMemFree(pbindinfo->szCustomVerb);
 393
 394     if(pbindinfo->pUnk && offsetof(BINDINFO, pUnk) < size)
 395         IUnknown_Release(pbindinfo->pUnk);
 396
 397     memset(pbindinfo, 0, size);
 398     pbindinfo->cbSize = size;
 399 }
 400
 401 /***********************************************************************
 402  *           CopyStgMedium (URLMON.@)
 403  */
 404 HRESULT WINAPI CopyStgMedium(const STGMEDIUM *src, STGMEDIUM *dst)
 405 {
 406     TRACE("(%p %p)\n", src, dst);
 407
 408     if(!src || !dst)
 409         return E_POINTER;
 410
 411     *dst = *src;
 412
 413     switch(dst->tymed) {
 414     case TYMED_NULL:
 415         break;
 416     case TYMED_FILE:
 417         if(src->u.lpszFileName && !src->pUnkForRelease) {
 418             DWORD size = (strlenW(src->u.lpszFileName)+1)*sizeof(WCHAR);
 419             dst->u.lpszFileName = CoTaskMemAlloc(size);
 420             memcpy(dst->u.lpszFileName, src->u.lpszFileName, size);
 421         }
 422         break;
 423     case TYMED_ISTREAM:
 424         if(dst->u.pstm)
 425             IStream_AddRef(dst->u.pstm);
 426         break;
 427     case TYMED_ISTORAGE:
 428         if(dst->u.pstg)
 429             IStorage_AddRef(dst->u.pstg);
 430         break;
 431     default:
 432         FIXME("Unimplemented tymed %d\n", src->tymed);
 433     }
 434
 435     if(dst->pUnkForRelease)
 436         IUnknown_AddRef(dst->pUnkForRelease);
 437
 438     return S_OK;
 439 }
 440
 441 static BOOL text_richtext_filter(const BYTE *b, DWORD size)
 442 {
 443     return size > 5 && !memcmp(b, "{\\rtf", 5);
 444 }
 445
 446 static BOOL text_html_filter(const BYTE *b, DWORD size)
 447 {
 448     DWORD i;
 449
 450     if(size < 5)
 451         return FALSE;
 452
 453     for(i=0; i < size-5; i++) {
 454         if(b[i] == '<'
 455            && (b[i+1] == 'h' || b[i+1] == 'H')
 456            && (b[i+2] == 't' || b[i+2] == 'T')
 457            && (b[i+3] == 'm' || b[i+3] == 'M')
 458            && (b[i+4] == 'l' || b[i+4] == 'L'))
 459             return TRUE;
 460     }
 461
 462     return FALSE;
 463 }
 464
 465 static BOOL audio_basic_filter(const BYTE *b, DWORD size)
 466 {
 467     return size > 4
 468         && b[0] == '.' && b[1] == 's' && b[2] == 'n' && b[3] == 'd';
 469 }
 470
 471 static BOOL audio_wav_filter(const BYTE *b, DWORD size)
 472 {
 473     return size > 12
 474         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 475         && b[8] == 'W' && b[9] == 'A' && b[10] == 'V' && b[11] == 'E';
 476 }
 477
 478 static BOOL image_gif_filter(const BYTE *b, DWORD size)
 479 {
 480     return size >= 6
 481         && (b[0] == 'G' || b[0] == 'g')
 482         && (b[1] == 'I' || b[1] == 'i')
 483         && (b[2] == 'F' || b[2] == 'f')
 484         &&  b[3] == '8'
 485         && (b[4] == '7' || b[4] == '9')
 486         && (b[5] == 'A' || b[5] == 'a');
 487 }
 488
 489 static BOOL image_pjpeg_filter(const BYTE *b, DWORD size)
 490 {
 491     return size > 2 && b[0] == 0xff && b[1] == 0xd8;
 492 }
 493
 494 static BOOL image_tiff_filter(const BYTE *b, DWORD size)
 495 {
 496     return size > 2 && b[0] == 0x4d && b[1] == 0x4d;
 497 }
 498
 499 static BOOL image_xpng_filter(const BYTE *b, DWORD size)
 500 {
 501     static const BYTE xpng_header[] = {0x89,'P','N','G',0x0d,0x0a,0x1a,0x0a};
 502     return size > sizeof(xpng_header) && !memcmp(b, xpng_header, sizeof(xpng_header));
 503 }
 504
 505 static BOOL image_bmp_filter(const BYTE *b, DWORD size)
 506 {
 507     return size >= 14
 508         && b[0] == 0x42 && b[1] == 0x4d
 509         && *(const DWORD *)(b+6) == 0;
 510 }
 511
 512 static BOOL video_avi_filter(const BYTE *b, DWORD size)
 513 {
 514     return size > 12
 515         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 516         && b[8] == 'A' && b[9] == 'V' && b[10] == 'I' && b[11] == 0x20;
 517 }
 518
 519 static BOOL video_mpeg_filter(const BYTE *b, DWORD size)
 520 {
 521     return size > 4
 522         && !b[0] && !b[1] && b[2] == 0x01
 523         && (b[3] == 0xb3 || b[3] == 0xba);
 524 }
 525
 526 static BOOL application_postscript_filter(const BYTE *b, DWORD size)
 527 {
 528     return size > 2 && b[0] == '%' && b[1] == '!';
 529 }
 530
 531 static BOOL application_pdf_filter(const BYTE *b, DWORD size)
 532 {
 533     return size > 4 && b[0] == 0x25 && b[1] == 0x50 && b[2] == 0x44 && b[3] == 0x46;
 534 }
 535
 536 static BOOL application_xzip_filter(const BYTE *b, DWORD size)
 537 {
 538     return size > 2 && b[0] == 0x50 && b[1] == 0x4b;
 539 }
 540
 541 static BOOL application_xgzip_filter(const BYTE *b, DWORD size)
 542 {
 543     return size > 2 && b[0] == 0x1f && b[1] == 0x8b;
 544 }
 545
 546 static BOOL application_java_filter(const BYTE *b, DWORD size)
 547 {
 548     return size > 4 && b[0] == 0xca && b[1] == 0xfe && b[2] == 0xba && b[3] == 0xbe;
 549 }
 550
 551 static BOOL application_xmsdownload(const BYTE *b, DWORD size)
 552 {
 553     return size > 2 && b[0] == 'M' && b[1] == 'Z';
 554 }
 555
 556 static BOOL text_plain_filter(const BYTE *b, DWORD size)
 557 {
 558     const BYTE *ptr;
 559
 560     for(ptr = b; ptr < b+size-1; ptr++) {
 561         if(*ptr < 0x20 && *ptr != '\n' && *ptr != '\r' && *ptr != '\t')
 562             return FALSE;
 563     }
 564
 565     return TRUE;
 566 }
 567
 568 static BOOL application_octet_stream_filter(const BYTE *b, DWORD size)
 569 {
 570     return TRUE;
 571 }
 572
 573 /***********************************************************************
 574  *           FindMimeFromData (URLMON.@)
 575  *
 576  * Determines the Multipurpose Internet Mail Extensions (MIME) type from the data provided.
 577  */
 578 HRESULT WINAPI FindMimeFromData(LPBC pBC, LPCWSTR pwzUrl, LPVOID pBuffer,
 579         DWORD cbSize, LPCWSTR pwzMimeProposed, DWORD dwMimeFlags,
 580         LPWSTR* ppwzMimeOut, DWORD dwReserved)
 581 {
 582     TRACE("(%p,%s,%p,%d,%s,0x%x,%p,0x%x)\n", pBC, debugstr_w(pwzUrl), pBuffer, cbSize,
 583             debugstr_w(pwzMimeProposed), dwMimeFlags, ppwzMimeOut, dwReserved);
 584
 585     if(dwMimeFlags)
 586         WARN("dwMimeFlags=%08x\n", dwMimeFlags);
 587     if(dwReserved)
 588         WARN("dwReserved=%d\n", dwReserved);
 589
 590     /* pBC seams to not be used */
 591
 592     if(!ppwzMimeOut || (!pwzUrl && !pBuffer))
 593         return E_INVALIDARG;
 594
 595     if(pwzMimeProposed && (!pBuffer || (pBuffer && !cbSize))) {
 596         DWORD len;
 597
 598         if(!pwzMimeProposed)
 599             return E_FAIL;
 600
 601         len = strlenW(pwzMimeProposed)+1;
 602         *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 603         memcpy(*ppwzMimeOut, pwzMimeProposed, len*sizeof(WCHAR));
 604         return S_OK;
 605     }
 606
 607     if(pBuffer) {
 608         const BYTE *buf = pBuffer;
 609         DWORD len;
 610         LPCWSTR ret = NULL;
 611         unsigned int i;
 612
 613         static const WCHAR wszTextHtml[] = {'t','e','x','t','/','h','t','m','l',0};
 614         static const WCHAR wszTextRichtext[] = {'t','e','x','t','/','r','i','c','h','t','e','x','t',0};
 615         static const WCHAR wszAudioBasic[] = {'a','u','d','i','o','/','b','a','s','i','c',0};
 616         static const WCHAR wszAudioWav[] = {'a','u','d','i','o','/','w','a','v',0};
 617         static const WCHAR wszImageGif[] = {'i','m','a','g','e','/','g','i','f',0};
 618         static const WCHAR wszImagePjpeg[] = {'i','m','a','g','e','/','p','j','p','e','g',0};
 619         static const WCHAR wszImageTiff[] = {'i','m','a','g','e','/','t','i','f','f',0};
 620         static const WCHAR wszImageXPng[] = {'i','m','a','g','e','/','x','-','p','n','g',0};
 621         static const WCHAR wszImageBmp[] = {'i','m','a','g','e','/','b','m','p',0};
 622         static const WCHAR wszVideoAvi[] = {'v','i','d','e','o','/','a','v','i',0};
 623         static const WCHAR wszVideoMpeg[] = {'v','i','d','e','o','/','m','p','e','g',0};
 624         static const WCHAR wszAppPostscript[] =
 625             {'a','p','p','l','i','c','a','t','i','o','n','/','p','o','s','t','s','c','r','i','p','t',0};
 626         static const WCHAR wszAppPdf[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 627             'p','d','f',0};
 628         static const WCHAR wszAppXZip[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 629             'x','-','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 630         static const WCHAR wszAppXGzip[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 631             'x','-','g','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 632         static const WCHAR wszAppJava[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 633             'j','a','v','a',0};
 634         static const WCHAR wszAppXMSDownload[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 635             'x','-','m','s','d','o','w','n','l','o','a','d',0};
 636         static const WCHAR wszTextPlain[] = {'t','e','x','t','/','p','l','a','i','n','\0'};
 637         static const WCHAR wszAppOctetStream[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 638             'o','c','t','e','t','-','s','t','r','e','a','m','\0'};
 639
 640         static const struct {
 641             LPCWSTR mime;
 642             BOOL (*filter)(const BYTE *,DWORD);
 643         } mime_filters[] = {
 644             {wszTextHtml,       text_html_filter},
 645             {wszTextRichtext,   text_richtext_filter},
 646          /* {wszAudioXAiff,     audio_xaiff_filter}, */
 647             {wszAudioBasic,     audio_basic_filter},
 648             {wszAudioWav,       audio_wav_filter},
 649             {wszImageGif,       image_gif_filter},
 650             {wszImagePjpeg,     image_pjpeg_filter},
 651             {wszImageTiff,      image_tiff_filter},
 652             {wszImageXPng,      image_xpng_filter},
 653          /* {wszImageXBitmap,   image_xbitmap_filter}, */
 654             {wszImageBmp,       image_bmp_filter},
 655          /* {wszImageXJg,       image_xjg_filter}, */
 656          /* {wszImageXEmf,      image_xemf_filter}, */
 657          /* {wszImageXWmf,      image_xwmf_filter}, */
 658             {wszVideoAvi,       video_avi_filter},
 659             {wszVideoMpeg,      video_mpeg_filter},
 660             {wszAppPostscript,  application_postscript_filter},
 661          /* {wszAppBase64,      application_base64_filter}, */
 662          /* {wszAppMacbinhex40, application_macbinhex40_filter}, */
 663             {wszAppPdf,         application_pdf_filter},
 664          /* {wszAppXCompressed, application_xcompressed_filter}, */
 665             {wszAppXZip,        application_xzip_filter},
 666             {wszAppXGzip,       application_xgzip_filter},
 667             {wszAppJava,        application_java_filter},
 668             {wszAppXMSDownload, application_xmsdownload},
 669             {wszTextPlain,      text_plain_filter},
 670             {wszAppOctetStream, application_octet_stream_filter}
 671         };
 672
 673         if(!cbSize)
 674             return E_FAIL;
 675
 676         if(pwzMimeProposed && strcmpW(pwzMimeProposed, wszAppOctetStream)) {
 677             for(i=0; i < sizeof(mime_filters)/sizeof(*mime_filters); i++) {
 678                 if(!strcmpW(pwzMimeProposed, mime_filters[i].mime))
 679                     break;
 680             }
 681
 682             if(i == sizeof(mime_filters)/sizeof(*mime_filters)
 683                     || mime_filters[i].filter(buf, cbSize)) {
 684                 len = strlenW(pwzMimeProposed)+1;
 685                 *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 686                 memcpy(*ppwzMimeOut, pwzMimeProposed, len*sizeof(WCHAR));
 687                 return S_OK;
 688             }
 689         }
 690
 691         i=0;
 692         while(!ret) {
 693             if(mime_filters[i].filter(buf, cbSize))
 694                 ret = mime_filters[i].mime;
 695             i++;
 696         }
 697
 698         TRACE("found %s for data\n"
 699               "%02x %02x %02x %02x  %02x %02x %02x %02x  %02x %02x %02x %02x  %02x %02x %02x %02x\n",
 700               debugstr_w(ret), buf[0],buf[1],buf[2],buf[3], buf[4],buf[5],buf[6],buf[7],
 701               buf[8],buf[9],buf[10],buf[11], buf[12],buf[13],buf[14],buf[15]);
 702
 703         if(pwzMimeProposed) {
 704             if(i == sizeof(mime_filters)/sizeof(*mime_filters))
 705                 ret = pwzMimeProposed;
 706
 707             /* text/html is a special case */
 708             if(!strcmpW(pwzMimeProposed, wszTextHtml) && !strcmpW(ret, wszTextPlain))
 709                 ret = wszTextHtml;
 710         }
 711
 712         len = strlenW(ret)+1;
 713         *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 714         memcpy(*ppwzMimeOut, ret, len*sizeof(WCHAR));
 715         return S_OK;
 716     }
 717
 718     if(pwzUrl) {
 719         HKEY hkey;
 720         DWORD res, size;
 721         LPCWSTR ptr;
 722         WCHAR mime[64];
 723
 724         static const WCHAR wszContentType[] =
 725                 {'C','o','n','t','e','n','t',' ','T','y','p','e','\0'};
 726
 727         ptr = strrchrW(pwzUrl, '.');
 728         if(!ptr)
 729             return E_FAIL;
 730
 731         res = RegOpenKeyW(HKEY_CLASSES_ROOT, ptr, &hkey);
 732         if(res != ERROR_SUCCESS)
 733             return HRESULT_FROM_WIN32(res);
 734
 735         size = sizeof(mime);
 736         res = RegQueryValueExW(hkey, wszContentType, NULL, NULL, (LPBYTE)mime, &size);
 737         RegCloseKey(hkey);
 738         if(res != ERROR_SUCCESS)
 739             return HRESULT_FROM_WIN32(res);
 740
 741         *ppwzMimeOut = CoTaskMemAlloc(size);
 742         memcpy(*ppwzMimeOut, mime, size);
 743         return S_OK;
 744     }
 745
 746     return E_FAIL;
 747 }
 748
 749 /***********************************************************************
 750  *           GetClassFileOrMime (URLMON.@)
 751  *
 752  * Determines the class ID from the bind context, file name or MIME type.
 753  */
 754 HRESULT WINAPI GetClassFileOrMime(LPBC pBC, LPCWSTR pszFilename,
 755         LPVOID pBuffer, DWORD cbBuffer, LPCWSTR pszMimeType, DWORD dwReserved,
 756         CLSID *pclsid)
 757 {
 758     FIXME("(%p, %s, %p, %d, %p, 0x%08x, %p): stub\n", pBC,
 759         debugstr_w(pszFilename), pBuffer, cbBuffer, debugstr_w(pszMimeType),
 760         dwReserved, pclsid);
 761     return E_NOTIMPL;
 762 }
 763
 764 /***********************************************************************
 765  * Extract (URLMON.@)
 766  */
 767 HRESULT WINAPI Extract(void *dest, LPCSTR szCabName)
 768 {
 769     HRESULT (WINAPI *pExtract)(void *, LPCSTR);
 770
 771     if (!hCabinet)
 772         hCabinet = LoadLibraryA("cabinet.dll");
 773
 774     if (!hCabinet) return HRESULT_FROM_WIN32(GetLastError());
 775     pExtract = (void *)GetProcAddress(hCabinet, "Extract");
 776     if (!pExtract) return HRESULT_FROM_WIN32(GetLastError());
 777
 778     return pExtract(dest, szCabName);
 779 }
 780
 781 /***********************************************************************
 782  *           IsLoggingEnabledA (URLMON.@)
 783  */
 784 BOOL WINAPI IsLoggingEnabledA(LPCSTR url)
 785 {
 786     FIXME("(%s)\n", debugstr_a(url));
 787     return FALSE;
 788 }
 789
 790 /***********************************************************************
 791  *           IsLoggingEnabledW (URLMON.@)
 792  */
 793 BOOL WINAPI IsLoggingEnabledW(LPCWSTR url)
 794 {
 795     FIXME("(%s)\n", debugstr_w(url));
 796     return FALSE;
 797 }