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 static void process_detach(void)
 125 {
 126     HINTERNET internet_session;
 127
 128     internet_session = get_internet_session(NULL);
 129     if(internet_session)
 130         InternetCloseHandle(internet_session);
 131
 132     if (hCabinet)
 133         FreeLibrary(hCabinet);
 134
 135     init_session(FALSE);
 136     free_session();
 137     free_tls_list();
 138 }
 139
 140 /***********************************************************************
 141  *              DllMain (URLMON.init)
 142  */
 143 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
 144 {
 145     TRACE("%p 0x%x %p\n", hinstDLL, fdwReason, fImpLoad);
 146
 147     switch(fdwReason) {
 148     case DLL_PROCESS_ATTACH:
 149         URLMON_hInstance = hinstDLL;
 150         init_session(TRUE);
 151         break;
 152
 153     case DLL_PROCESS_DETACH:
 154         process_detach();
 155         break;
 156
 157     case DLL_THREAD_DETACH:
 158         detach_thread();
 159         break;
 160     }
 161     return TRUE;
 162 }
 163
 164
 165 /***********************************************************************
 166  *              DllInstall (URLMON.@)
 167  */
 168 HRESULT WINAPI DllInstall(BOOL bInstall, LPCWSTR cmdline)
 169 {
 170   FIXME("(%s, %s): stub\n", bInstall?"TRUE":"FALSE",
 171         debugstr_w(cmdline));
 172
 173   return S_OK;
 174 }
 175
 176 /***********************************************************************
 177  *              DllCanUnloadNow (URLMON.@)
 178  */
 179 HRESULT WINAPI DllCanUnloadNow(void)
 180 {
 181     return URLMON_refCount != 0 ? S_FALSE : S_OK;
 182 }
 183
 184
 185
 186 /******************************************************************************
 187  * Urlmon ClassFactory
 188  */
 189 typedef struct {
 190     const IClassFactoryVtbl *lpClassFactoryVtbl;
 191
 192     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
 193 } ClassFactory;
 194
 195 #define CLASSFACTORY(x)  ((IClassFactory*)  &(x)->lpClassFactoryVtbl)
 196
 197 static HRESULT WINAPI CF_QueryInterface(IClassFactory *iface, REFIID riid, LPVOID *ppv)
 198 {
 199     *ppv = NULL;
 200
 201     if(IsEqualGUID(riid, &IID_IUnknown)) {
 202         TRACE("(%p)->(IID_IUnknown %p)\n", iface, ppv);
 203         *ppv = iface;
 204     }else if(IsEqualGUID(riid, &IID_IClassFactory)) {
 205         TRACE("(%p)->(IID_IClassFactory %p)\n", iface, ppv);
 206         *ppv = iface;
 207     }
 208
 209     if(*ppv) {
 210         IUnknown_AddRef((IUnknown*)*ppv);
 211         return S_OK;
 212     }
 213
 214     WARN("(%p)->(%s,%p),not found\n", iface, debugstr_guid(riid), ppv);
 215     return E_NOINTERFACE;
 216 }
 217
 218 static ULONG WINAPI CF_AddRef(IClassFactory *iface)
 219 {
 220     URLMON_LockModule();
 221     return 2;
 222 }
 223
 224 static ULONG WINAPI CF_Release(IClassFactory *iface)
 225 {
 226     URLMON_UnlockModule();
 227     return 1;
 228 }
 229
 230
 231 static HRESULT WINAPI CF_CreateInstance(IClassFactory *iface, IUnknown *pOuter,
 232                                         REFIID riid, LPVOID *ppobj)
 233 {
 234     ClassFactory *This = (ClassFactory*)iface;
 235     HRESULT hres;
 236     LPUNKNOWN punk;
 237
 238     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 239
 240     *ppobj = NULL;
 241     if(SUCCEEDED(hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk))) {
 242         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 243         IUnknown_Release(punk);
 244     }
 245     return hres;
 246 }
 247
 248 static HRESULT WINAPI CF_LockServer(LPCLASSFACTORY iface,BOOL dolock)
 249 {
 250     TRACE("(%d)\n", dolock);
 251
 252     if (dolock)
 253            URLMON_LockModule();
 254     else
 255            URLMON_UnlockModule();
 256
 257     return S_OK;
 258 }
 259
 260 static const IClassFactoryVtbl ClassFactoryVtbl =
 261 {
 262     CF_QueryInterface,
 263     CF_AddRef,
 264     CF_Release,
 265     CF_CreateInstance,
 266     CF_LockServer
 267 };
 268
 269 static const ClassFactory FileProtocolCF =
 270     { &ClassFactoryVtbl, FileProtocol_Construct};
 271 static const ClassFactory FtpProtocolCF =
 272     { &ClassFactoryVtbl, FtpProtocol_Construct};
 273 static const ClassFactory GopherProtocolCF =
 274     { &ClassFactoryVtbl, GopherProtocol_Construct};
 275 static const ClassFactory HttpProtocolCF =
 276     { &ClassFactoryVtbl, HttpProtocol_Construct};
 277 static const ClassFactory HttpSProtocolCF =
 278     { &ClassFactoryVtbl, HttpSProtocol_Construct};
 279 static const ClassFactory MkProtocolCF =
 280     { &ClassFactoryVtbl, MkProtocol_Construct};
 281 static const ClassFactory SecurityManagerCF =
 282     { &ClassFactoryVtbl, SecManagerImpl_Construct};
 283 static const ClassFactory ZoneManagerCF =
 284     { &ClassFactoryVtbl, ZoneMgrImpl_Construct};
 285 static const ClassFactory StdURLMonikerCF =
 286     { &ClassFactoryVtbl, StdURLMoniker_Construct};
 287 static const ClassFactory MimeFilterCF =
 288     { &ClassFactoryVtbl, MimeFilter_Construct};
 289
 290 struct object_creation_info
 291 {
 292     const CLSID *clsid;
 293     IClassFactory *cf;
 294     LPCWSTR protocol;
 295 };
 296
 297 static const WCHAR wszFile[] = {'f','i','l','e',0};
 298 static const WCHAR wszFtp[]  = {'f','t','p',0};
 299 static const WCHAR wszGopher[]  = {'g','o','p','h','e','r',0};
 300 static const WCHAR wszHttp[] = {'h','t','t','p',0};
 301 static const WCHAR wszHttps[] = {'h','t','t','p','s',0};
 302 static const WCHAR wszMk[]   = {'m','k',0};
 303
 304 static const struct object_creation_info object_creation[] =
 305 {
 306     { &CLSID_FileProtocol,            CLASSFACTORY(&FileProtocolCF),    wszFile },
 307     { &CLSID_FtpProtocol,             CLASSFACTORY(&FtpProtocolCF),     wszFtp  },
 308     { &CLSID_GopherProtocol,          CLASSFACTORY(&GopherProtocolCF),  wszGopher },
 309     { &CLSID_HttpProtocol,            CLASSFACTORY(&HttpProtocolCF),    wszHttp },
 310     { &CLSID_HttpSProtocol,           CLASSFACTORY(&HttpSProtocolCF),   wszHttps },
 311     { &CLSID_MkProtocol,              CLASSFACTORY(&MkProtocolCF),      wszMk },
 312     { &CLSID_InternetSecurityManager, CLASSFACTORY(&SecurityManagerCF), NULL    },
 313     { &CLSID_InternetZoneManager,     CLASSFACTORY(&ZoneManagerCF),     NULL    },
 314     { &CLSID_StdURLMoniker,           CLASSFACTORY(&StdURLMonikerCF),   NULL    },
 315     { &CLSID_DeCompMimeFilter,        CLASSFACTORY(&MimeFilterCF),      NULL    }
 316 };
 317
 318 static void init_session(BOOL init)
 319 {
 320     unsigned int i;
 321
 322     for(i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++) {
 323
 324         if(object_creation[i].protocol)
 325             register_urlmon_namespace(object_creation[i].cf, object_creation[i].clsid,
 326                                       object_creation[i].protocol, init);
 327     }
 328 }
 329
 330 /*******************************************************************************
 331  * DllGetClassObject [URLMON.@]
 332  * Retrieves class object from a DLL object
 333  *
 334  * NOTES
 335  *    Docs say returns STDAPI
 336  *
 337  * PARAMS
 338  *    rclsid [I] CLSID for the class object
 339  *    riid   [I] Reference to identifier of interface for class object
 340  *    ppv    [O] Address of variable to receive interface pointer for riid
 341  *
 342  * RETURNS
 343  *    Success: S_OK
 344  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 345  *             E_UNEXPECTED
 346  */
 347
 348 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 349 {
 350     unsigned int i;
 351
 352     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 353
 354     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 355     {
 356         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 357             return IClassFactory_QueryInterface(object_creation[i].cf, riid, ppv);
 358     }
 359
 360     FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 361     return CLASS_E_CLASSNOTAVAILABLE;
 362 }
 363
 364
 365 /***********************************************************************
 366  *              DllRegisterServerEx (URLMON.@)
 367  */
 368 HRESULT WINAPI DllRegisterServerEx(void)
 369 {
 370     FIXME("(void): stub\n");
 371
 372     return E_FAIL;
 373 }
 374
 375 /**************************************************************************
 376  *                 IsValidURL (URLMON.@)
 377  *
 378  * Determines if a specified string is a valid URL.
 379  *
 380  * PARAMS
 381  *  pBC        [I] ignored, must be NULL.
 382  *  szURL      [I] string that represents the URL in question.
 383  *  dwReserved [I] reserved and must be zero.
 384  *
 385  * RETURNS
 386  *  Success: S_OK.
 387  *  Failure: S_FALSE.
 388  *  returns E_INVALIDARG if one or more of the args is invalid.
 389  *
 390  * TODO:
 391  *  test functionality against windows to see what a valid URL is.
 392  */
 393 HRESULT WINAPI IsValidURL(LPBC pBC, LPCWSTR szURL, DWORD dwReserved)
 394 {
 395     FIXME("(%p, %s, %d): stub\n", pBC, debugstr_w(szURL), dwReserved);
 396
 397     if (pBC || dwReserved || !szURL)
 398         return E_INVALIDARG;
 399
 400     return S_OK;
 401 }
 402
 403 /**************************************************************************
 404  *                 FaultInIEFeature (URLMON.@)
 405  *
 406  *  Undocumented.  Appears to be used by native shdocvw.dll.
 407  */
 408 HRESULT WINAPI FaultInIEFeature( HWND hwnd, uCLSSPEC * pClassSpec,
 409                                  QUERYCONTEXT *pQuery, DWORD flags )
 410 {
 411     FIXME("%p %p %p %08x\n", hwnd, pClassSpec, pQuery, flags);
 412     return E_NOTIMPL;
 413 }
 414
 415 /**************************************************************************
 416  *                 CoGetClassObjectFromURL (URLMON.@)
 417  */
 418 HRESULT WINAPI CoGetClassObjectFromURL( REFCLSID rclsid, LPCWSTR szCodeURL, DWORD dwFileVersionMS,
 419                                         DWORD dwFileVersionLS, LPCWSTR szContentType,
 420                                         LPBINDCTX pBindCtx, DWORD dwClsContext, LPVOID pvReserved,
 421                                         REFIID riid, LPVOID *ppv )
 422 {
 423     FIXME("(%s %s %d %d %s %p %d %p %s %p) Stub!\n", debugstr_guid(rclsid), debugstr_w(szCodeURL),
 424         dwFileVersionMS, dwFileVersionLS, debugstr_w(szContentType), pBindCtx, dwClsContext, pvReserved,
 425         debugstr_guid(riid), ppv);
 426     return E_NOINTERFACE;
 427 }
 428
 429 /***********************************************************************
 430  *           ReleaseBindInfo (URLMON.@)
 431  *
 432  * Release the resources used by the specified BINDINFO structure.
 433  *
 434  * PARAMS
 435  *  pbindinfo [I] BINDINFO to release.
 436  *
 437  * RETURNS
 438  *  Nothing.
 439  */
 440 void WINAPI ReleaseBindInfo(BINDINFO* pbindinfo)
 441 {
 442     DWORD size;
 443
 444     TRACE("(%p)\n", pbindinfo);
 445
 446     if(!pbindinfo || !(size = pbindinfo->cbSize))
 447         return;
 448
 449     CoTaskMemFree(pbindinfo->szExtraInfo);
 450     ReleaseStgMedium(&pbindinfo->stgmedData);
 451
 452     if(offsetof(BINDINFO, szExtraInfo) < size)
 453         CoTaskMemFree(pbindinfo->szCustomVerb);
 454
 455     if(pbindinfo->pUnk && offsetof(BINDINFO, pUnk) < size)
 456         IUnknown_Release(pbindinfo->pUnk);
 457
 458     memset(pbindinfo, 0, size);
 459     pbindinfo->cbSize = size;
 460 }
 461
 462 /***********************************************************************
 463  *           CopyStgMedium (URLMON.@)
 464  */
 465 HRESULT WINAPI CopyStgMedium(const STGMEDIUM *src, STGMEDIUM *dst)
 466 {
 467     TRACE("(%p %p)\n", src, dst);
 468
 469     if(!src || !dst)
 470         return E_POINTER;
 471
 472     *dst = *src;
 473
 474     switch(dst->tymed) {
 475     case TYMED_NULL:
 476         break;
 477     case TYMED_FILE:
 478         if(src->u.lpszFileName && !src->pUnkForRelease) {
 479             DWORD size = (strlenW(src->u.lpszFileName)+1)*sizeof(WCHAR);
 480             dst->u.lpszFileName = CoTaskMemAlloc(size);
 481             memcpy(dst->u.lpszFileName, src->u.lpszFileName, size);
 482         }
 483         break;
 484     case TYMED_ISTREAM:
 485         if(dst->u.pstm)
 486             IStream_AddRef(dst->u.pstm);
 487         break;
 488     case TYMED_ISTORAGE:
 489         if(dst->u.pstg)
 490             IStorage_AddRef(dst->u.pstg);
 491         break;
 492     default:
 493         FIXME("Unimplemented tymed %d\n", src->tymed);
 494     }
 495
 496     if(dst->pUnkForRelease)
 497         IUnknown_AddRef(dst->pUnkForRelease);
 498
 499     return S_OK;
 500 }
 501
 502 static BOOL text_richtext_filter(const BYTE *b, DWORD size)
 503 {
 504     return size > 5 && !memcmp(b, "{\\rtf", 5);
 505 }
 506
 507 static BOOL text_html_filter(const BYTE *b, DWORD size)
 508 {
 509     DWORD i;
 510
 511     if(size < 5)
 512         return FALSE;
 513
 514     for(i=0; i < size-5; i++) {
 515         if(b[i] == '<'
 516            && (b[i+1] == 'h' || b[i+1] == 'H')
 517            && (b[i+2] == 't' || b[i+2] == 'T')
 518            && (b[i+3] == 'm' || b[i+3] == 'M')
 519            && (b[i+4] == 'l' || b[i+4] == 'L'))
 520             return TRUE;
 521     }
 522
 523     return FALSE;
 524 }
 525
 526 static BOOL audio_basic_filter(const BYTE *b, DWORD size)
 527 {
 528     return size > 4
 529         && b[0] == '.' && b[1] == 's' && b[2] == 'n' && b[3] == 'd';
 530 }
 531
 532 static BOOL audio_wav_filter(const BYTE *b, DWORD size)
 533 {
 534     return size > 12
 535         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 536         && b[8] == 'W' && b[9] == 'A' && b[10] == 'V' && b[11] == 'E';
 537 }
 538
 539 static BOOL image_gif_filter(const BYTE *b, DWORD size)
 540 {
 541     return size >= 6
 542         && (b[0] == 'G' || b[0] == 'g')
 543         && (b[1] == 'I' || b[1] == 'i')
 544         && (b[2] == 'F' || b[2] == 'f')
 545         &&  b[3] == '8'
 546         && (b[4] == '7' || b[4] == '9')
 547         && (b[5] == 'A' || b[5] == 'a');
 548 }
 549
 550 static BOOL image_pjpeg_filter(const BYTE *b, DWORD size)
 551 {
 552     return size > 2 && b[0] == 0xff && b[1] == 0xd8;
 553 }
 554
 555 static BOOL image_tiff_filter(const BYTE *b, DWORD size)
 556 {
 557     return size > 2 && b[0] == 0x4d && b[1] == 0x4d;
 558 }
 559
 560 static BOOL image_xpng_filter(const BYTE *b, DWORD size)
 561 {
 562     static const BYTE xpng_header[] = {0x89,'P','N','G',0x0d,0x0a,0x1a,0x0a};
 563     return size > sizeof(xpng_header) && !memcmp(b, xpng_header, sizeof(xpng_header));
 564 }
 565
 566 static BOOL image_bmp_filter(const BYTE *b, DWORD size)
 567 {
 568     return size >= 14
 569         && b[0] == 0x42 && b[1] == 0x4d
 570         && *(const DWORD *)(b+6) == 0;
 571 }
 572
 573 static BOOL video_avi_filter(const BYTE *b, DWORD size)
 574 {
 575     return size > 12
 576         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 577         && b[8] == 'A' && b[9] == 'V' && b[10] == 'I' && b[11] == 0x20;
 578 }
 579
 580 static BOOL video_mpeg_filter(const BYTE *b, DWORD size)
 581 {
 582     return size > 4
 583         && !b[0] && !b[1] && b[2] == 0x01
 584         && (b[3] == 0xb3 || b[3] == 0xba);
 585 }
 586
 587 static BOOL application_postscript_filter(const BYTE *b, DWORD size)
 588 {
 589     return size > 2 && b[0] == '%' && b[1] == '!';
 590 }
 591
 592 static BOOL application_pdf_filter(const BYTE *b, DWORD size)
 593 {
 594     return size > 4 && b[0] == 0x25 && b[1] == 0x50 && b[2] == 0x44 && b[3] == 0x46;
 595 }
 596
 597 static BOOL application_xzip_filter(const BYTE *b, DWORD size)
 598 {
 599     return size > 2 && b[0] == 0x50 && b[1] == 0x4b;
 600 }
 601
 602 static BOOL application_xgzip_filter(const BYTE *b, DWORD size)
 603 {
 604     return size > 2 && b[0] == 0x1f && b[1] == 0x8b;
 605 }
 606
 607 static BOOL application_java_filter(const BYTE *b, DWORD size)
 608 {
 609     return size > 4 && b[0] == 0xca && b[1] == 0xfe && b[2] == 0xba && b[3] == 0xbe;
 610 }
 611
 612 static BOOL application_xmsdownload(const BYTE *b, DWORD size)
 613 {
 614     return size > 2 && b[0] == 'M' && b[1] == 'Z';
 615 }
 616
 617 static BOOL text_plain_filter(const BYTE *b, DWORD size)
 618 {
 619     const BYTE *ptr;
 620
 621     for(ptr = b; ptr < b+size-1; ptr++) {
 622         if(*ptr < 0x20 && *ptr != '\n' && *ptr != '\r' && *ptr != '\t')
 623             return FALSE;
 624     }
 625
 626     return TRUE;
 627 }
 628
 629 static BOOL application_octet_stream_filter(const BYTE *b, DWORD size)
 630 {
 631     return TRUE;
 632 }
 633
 634 /***********************************************************************
 635  *           FindMimeFromData (URLMON.@)
 636  *
 637  * Determines the Multipurpose Internet Mail Extensions (MIME) type from the data provided.
 638  */
 639 HRESULT WINAPI FindMimeFromData(LPBC pBC, LPCWSTR pwzUrl, LPVOID pBuffer,
 640         DWORD cbSize, LPCWSTR pwzMimeProposed, DWORD dwMimeFlags,
 641         LPWSTR* ppwzMimeOut, DWORD dwReserved)
 642 {
 643     TRACE("(%p,%s,%p,%d,%s,0x%x,%p,0x%x)\n", pBC, debugstr_w(pwzUrl), pBuffer, cbSize,
 644             debugstr_w(pwzMimeProposed), dwMimeFlags, ppwzMimeOut, dwReserved);
 645
 646     if(dwMimeFlags)
 647         WARN("dwMimeFlags=%08x\n", dwMimeFlags);
 648     if(dwReserved)
 649         WARN("dwReserved=%d\n", dwReserved);
 650
 651     /* pBC seams to not be used */
 652
 653     if(!ppwzMimeOut || (!pwzUrl && !pBuffer))
 654         return E_INVALIDARG;
 655
 656     if(pwzMimeProposed && (!pBuffer || (pBuffer && !cbSize))) {
 657         DWORD len;
 658
 659         if(!pwzMimeProposed)
 660             return E_FAIL;
 661
 662         len = strlenW(pwzMimeProposed)+1;
 663         *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 664         memcpy(*ppwzMimeOut, pwzMimeProposed, len*sizeof(WCHAR));
 665         return S_OK;
 666     }
 667
 668     if(pBuffer) {
 669         const BYTE *buf = pBuffer;
 670         DWORD len;
 671         LPCWSTR ret = NULL;
 672         unsigned int i;
 673
 674         static const WCHAR wszTextHtml[] = {'t','e','x','t','/','h','t','m','l',0};
 675         static const WCHAR wszTextRichtext[] = {'t','e','x','t','/','r','i','c','h','t','e','x','t',0};
 676         static const WCHAR wszAudioBasic[] = {'a','u','d','i','o','/','b','a','s','i','c',0};
 677         static const WCHAR wszAudioWav[] = {'a','u','d','i','o','/','w','a','v',0};
 678         static const WCHAR wszImageGif[] = {'i','m','a','g','e','/','g','i','f',0};
 679         static const WCHAR wszImagePjpeg[] = {'i','m','a','g','e','/','p','j','p','e','g',0};
 680         static const WCHAR wszImageTiff[] = {'i','m','a','g','e','/','t','i','f','f',0};
 681         static const WCHAR wszImageXPng[] = {'i','m','a','g','e','/','x','-','p','n','g',0};
 682         static const WCHAR wszImageBmp[] = {'i','m','a','g','e','/','b','m','p',0};
 683         static const WCHAR wszVideoAvi[] = {'v','i','d','e','o','/','a','v','i',0};
 684         static const WCHAR wszVideoMpeg[] = {'v','i','d','e','o','/','m','p','e','g',0};
 685         static const WCHAR wszAppPostscript[] =
 686             {'a','p','p','l','i','c','a','t','i','o','n','/','p','o','s','t','s','c','r','i','p','t',0};
 687         static const WCHAR wszAppPdf[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 688             'p','d','f',0};
 689         static const WCHAR wszAppXZip[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 690             'x','-','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 691         static const WCHAR wszAppXGzip[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 692             'x','-','g','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 693         static const WCHAR wszAppJava[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 694             'j','a','v','a',0};
 695         static const WCHAR wszAppXMSDownload[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 696             'x','-','m','s','d','o','w','n','l','o','a','d',0};
 697         static const WCHAR wszTextPlain[] = {'t','e','x','t','/','p','l','a','i','n','\0'};
 698         static const WCHAR wszAppOctetStream[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 699             'o','c','t','e','t','-','s','t','r','e','a','m','\0'};
 700
 701         static const struct {
 702             LPCWSTR mime;
 703             BOOL (*filter)(const BYTE *,DWORD);
 704         } mime_filters[] = {
 705             {wszTextHtml,       text_html_filter},
 706             {wszTextRichtext,   text_richtext_filter},
 707          /* {wszAudioXAiff,     audio_xaiff_filter}, */
 708             {wszAudioBasic,     audio_basic_filter},
 709             {wszAudioWav,       audio_wav_filter},
 710             {wszImageGif,       image_gif_filter},
 711             {wszImagePjpeg,     image_pjpeg_filter},
 712             {wszImageTiff,      image_tiff_filter},
 713             {wszImageXPng,      image_xpng_filter},
 714          /* {wszImageXBitmap,   image_xbitmap_filter}, */
 715             {wszImageBmp,       image_bmp_filter},
 716          /* {wszImageXJg,       image_xjg_filter}, */
 717          /* {wszImageXEmf,      image_xemf_filter}, */
 718          /* {wszImageXWmf,      image_xwmf_filter}, */
 719             {wszVideoAvi,       video_avi_filter},
 720             {wszVideoMpeg,      video_mpeg_filter},
 721             {wszAppPostscript,  application_postscript_filter},
 722          /* {wszAppBase64,      application_base64_filter}, */
 723          /* {wszAppMacbinhex40, application_macbinhex40_filter}, */
 724             {wszAppPdf,         application_pdf_filter},
 725          /* {wszAppXCompressed, application_xcompressed_filter}, */
 726             {wszAppXZip,        application_xzip_filter},
 727             {wszAppXGzip,       application_xgzip_filter},
 728             {wszAppJava,        application_java_filter},
 729             {wszAppXMSDownload, application_xmsdownload},
 730             {wszTextPlain,      text_plain_filter},
 731             {wszAppOctetStream, application_octet_stream_filter}
 732         };
 733
 734         if(!cbSize)
 735             return E_FAIL;
 736
 737         if(pwzMimeProposed && strcmpW(pwzMimeProposed, wszAppOctetStream)) {
 738             for(i=0; i < sizeof(mime_filters)/sizeof(*mime_filters); i++) {
 739                 if(!strcmpW(pwzMimeProposed, mime_filters[i].mime))
 740                     break;
 741             }
 742
 743             if(i == sizeof(mime_filters)/sizeof(*mime_filters)
 744                     || mime_filters[i].filter(buf, cbSize)) {
 745                 len = strlenW(pwzMimeProposed)+1;
 746                 *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 747                 memcpy(*ppwzMimeOut, pwzMimeProposed, len*sizeof(WCHAR));
 748                 return S_OK;
 749             }
 750         }
 751
 752         i=0;
 753         while(!ret) {
 754             if(mime_filters[i].filter(buf, cbSize))
 755                 ret = mime_filters[i].mime;
 756             i++;
 757         }
 758
 759         TRACE("found %s for data\n"
 760               "%02x %02x %02x %02x  %02x %02x %02x %02x  %02x %02x %02x %02x  %02x %02x %02x %02x\n",
 761               debugstr_w(ret), buf[0],buf[1],buf[2],buf[3], buf[4],buf[5],buf[6],buf[7],
 762               buf[8],buf[9],buf[10],buf[11], buf[12],buf[13],buf[14],buf[15]);
 763
 764         if(pwzMimeProposed) {
 765             if(i == sizeof(mime_filters)/sizeof(*mime_filters))
 766                 ret = pwzMimeProposed;
 767
 768             /* text/html is a special case */
 769             if(!strcmpW(pwzMimeProposed, wszTextHtml) && !strcmpW(ret, wszTextPlain))
 770                 ret = wszTextHtml;
 771         }
 772
 773         len = strlenW(ret)+1;
 774         *ppwzMimeOut = CoTaskMemAlloc(len*sizeof(WCHAR));
 775         memcpy(*ppwzMimeOut, ret, len*sizeof(WCHAR));
 776         return S_OK;
 777     }
 778
 779     if(pwzUrl) {
 780         HKEY hkey;
 781         DWORD res, size;
 782         LPCWSTR ptr;
 783         WCHAR mime[64];
 784
 785         static const WCHAR wszContentType[] =
 786                 {'C','o','n','t','e','n','t',' ','T','y','p','e','\0'};
 787
 788         ptr = strrchrW(pwzUrl, '.');
 789         if(!ptr)
 790             return E_FAIL;
 791
 792         res = RegOpenKeyW(HKEY_CLASSES_ROOT, ptr, &hkey);
 793         if(res != ERROR_SUCCESS)
 794             return HRESULT_FROM_WIN32(res);
 795
 796         size = sizeof(mime);
 797         res = RegQueryValueExW(hkey, wszContentType, NULL, NULL, (LPBYTE)mime, &size);
 798         RegCloseKey(hkey);
 799         if(res != ERROR_SUCCESS)
 800             return HRESULT_FROM_WIN32(res);
 801
 802         *ppwzMimeOut = CoTaskMemAlloc(size);
 803         memcpy(*ppwzMimeOut, mime, size);
 804         return S_OK;
 805     }
 806
 807     return E_FAIL;
 808 }
 809
 810 /***********************************************************************
 811  *           GetClassFileOrMime (URLMON.@)
 812  *
 813  * Determines the class ID from the bind context, file name or MIME type.
 814  */
 815 HRESULT WINAPI GetClassFileOrMime(LPBC pBC, LPCWSTR pszFilename,
 816         LPVOID pBuffer, DWORD cbBuffer, LPCWSTR pszMimeType, DWORD dwReserved,
 817         CLSID *pclsid)
 818 {
 819     FIXME("(%p, %s, %p, %d, %p, 0x%08x, %p): stub\n", pBC,
 820         debugstr_w(pszFilename), pBuffer, cbBuffer, debugstr_w(pszMimeType),
 821         dwReserved, pclsid);
 822     return E_NOTIMPL;
 823 }
 824
 825 /***********************************************************************
 826  * Extract (URLMON.@)
 827  */
 828 HRESULT WINAPI Extract(void *dest, LPCSTR szCabName)
 829 {
 830     HRESULT (WINAPI *pExtract)(void *, LPCSTR);
 831
 832     if (!hCabinet)
 833         hCabinet = LoadLibraryA("cabinet.dll");
 834
 835     if (!hCabinet) return HRESULT_FROM_WIN32(GetLastError());
 836     pExtract = (void *)GetProcAddress(hCabinet, "Extract");
 837     if (!pExtract) return HRESULT_FROM_WIN32(GetLastError());
 838
 839     return pExtract(dest, szCabName);
 840 }
 841
 842 /***********************************************************************
 843  *           IsLoggingEnabledA (URLMON.@)
 844  */
 845 BOOL WINAPI IsLoggingEnabledA(LPCSTR url)
 846 {
 847     FIXME("(%s)\n", debugstr_a(url));
 848     return FALSE;
 849 }
 850
 851 /***********************************************************************
 852  *           IsLoggingEnabledW (URLMON.@)
 853  */
 854 BOOL WINAPI IsLoggingEnabledW(LPCWSTR url)
 855 {
 856     FIXME("(%s)\n", debugstr_w(url));
 857     return FALSE;
 858 }