dll/win32/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 <advpub.h>
  30
  31 #include <wine/debug.h>
  32
  33 //#include "urlmon.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(urlmon);
  36
  37 LONG URLMON_refCount = 0;
  38
  39 static HMODULE hCabinet = NULL;
  40 static DWORD urlmon_tls = TLS_OUT_OF_INDEXES;
  41
  42 static void init_session(BOOL);
  43
  44 static struct list tls_list = LIST_INIT(tls_list);
  45
  46 static CRITICAL_SECTION tls_cs;
  47 static CRITICAL_SECTION_DEBUG tls_cs_dbg =
  48 {
  49     0, 0, &tls_cs,
  50     { &tls_cs_dbg.ProcessLocksList, &tls_cs_dbg.ProcessLocksList },
  51       0, 0, { (DWORD_PTR)(__FILE__ ": tls") }
  52 };
  53
  54 static CRITICAL_SECTION tls_cs = { &tls_cs_dbg, -1, 0, 0, 0, 0 };
  55
  56 tls_data_t *get_tls_data(void)
  57 {
  58     tls_data_t *data;
  59
  60     if(urlmon_tls == TLS_OUT_OF_INDEXES) {
  61         DWORD tls = TlsAlloc();
  62         if(tls == TLS_OUT_OF_INDEXES)
  63             return NULL;
  64
  65         tls = InterlockedCompareExchange((LONG*)&urlmon_tls, tls, TLS_OUT_OF_INDEXES);
  66         if(tls != urlmon_tls)
  67             TlsFree(tls);
  68     }
  69
  70     data = TlsGetValue(urlmon_tls);
  71     if(!data) {
  72         data = heap_alloc_zero(sizeof(tls_data_t));
  73         if(!data)
  74             return NULL;
  75
  76         EnterCriticalSection(&tls_cs);
  77         list_add_tail(&tls_list, &data->entry);
  78         LeaveCriticalSection(&tls_cs);
  79
  80         TlsSetValue(urlmon_tls, data);
  81     }
  82
  83     return data;
  84 }
  85
  86 static void free_tls_list(void)
  87 {
  88     tls_data_t *data;
  89
  90     if(urlmon_tls == TLS_OUT_OF_INDEXES)
  91         return;
  92
  93     while(!list_empty(&tls_list)) {
  94         data = LIST_ENTRY(list_head(&tls_list), tls_data_t, entry);
  95         list_remove(&data->entry);
  96         heap_free(data);
  97     }
  98
  99     TlsFree(urlmon_tls);
 100 }
 101
 102 static void detach_thread(void)
 103 {
 104     tls_data_t *data;
 105
 106     if(urlmon_tls == TLS_OUT_OF_INDEXES)
 107         return;
 108
 109     data = TlsGetValue(urlmon_tls);
 110     if(!data)
 111         return;
 112
 113     EnterCriticalSection(&tls_cs);
 114     list_remove(&data->entry);
 115     LeaveCriticalSection(&tls_cs);
 116
 117     if(data->notif_hwnd) {
 118         WARN("notif_hwnd not destroyed\n");
 119         DestroyWindow(data->notif_hwnd);
 120     }
 121
 122     heap_free(data);
 123 }
 124
 125 static void process_detach(void)
 126 {
 127     HINTERNET internet_session;
 128
 129     internet_session = get_internet_session(NULL);
 130     if(internet_session)
 131         InternetCloseHandle(internet_session);
 132
 133     if (hCabinet)
 134         FreeLibrary(hCabinet);
 135
 136     init_session(FALSE);
 137     free_session();
 138     free_tls_list();
 139 }
 140
 141 /***********************************************************************
 142  *              DllMain (URLMON.init)
 143  */
 144 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
 145 {
 146     TRACE("%p 0x%x %p\n", hinstDLL, fdwReason, fImpLoad);
 147
 148     URLMON_DllMain( hinstDLL, fdwReason, fImpLoad );
 149
 150     switch(fdwReason) {
 151     case DLL_PROCESS_ATTACH:
 152         init_session(TRUE);
 153         break;
 154
 155     case DLL_PROCESS_DETACH:
 156         process_detach();
 157         break;
 158
 159     case DLL_THREAD_DETACH:
 160         detach_thread();
 161         break;
 162     }
 163     return TRUE;
 164 }
 165
 166
 167 /***********************************************************************
 168  *              DllInstall (URLMON.@)
 169  */
 170 HRESULT WINAPI DllInstall(BOOL bInstall, LPCWSTR cmdline)
 171 {
 172   FIXME("(%s, %s): stub\n", bInstall?"TRUE":"FALSE",
 173         debugstr_w(cmdline));
 174
 175   return S_OK;
 176 }
 177
 178 /***********************************************************************
 179  *              DllCanUnloadNow (URLMON.@)
 180  */
 181 HRESULT WINAPI DllCanUnloadNow(void)
 182 {
 183     return URLMON_refCount != 0 ? S_FALSE : S_OK;
 184 }
 185
 186
 187
 188 /******************************************************************************
 189  * Urlmon ClassFactory
 190  */
 191 typedef struct {
 192     IClassFactory IClassFactory_iface;
 193
 194     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
 195 } ClassFactory;
 196
 197 static inline ClassFactory *impl_from_IClassFactory(IClassFactory *iface)
 198 {
 199     return CONTAINING_RECORD(iface, ClassFactory, IClassFactory_iface);
 200 }
 201
 202 static HRESULT WINAPI CF_QueryInterface(IClassFactory *iface, REFIID riid, LPVOID *ppv)
 203 {
 204     *ppv = NULL;
 205
 206     if(IsEqualGUID(riid, &IID_IUnknown)) {
 207         TRACE("(%p)->(IID_IUnknown %p)\n", iface, ppv);
 208         *ppv = iface;
 209     }else if(IsEqualGUID(riid, &IID_IClassFactory)) {
 210         TRACE("(%p)->(IID_IClassFactory %p)\n", iface, ppv);
 211         *ppv = iface;
 212     }
 213
 214     if(*ppv) {
 215         IUnknown_AddRef((IUnknown*)*ppv);
 216         return S_OK;
 217     }
 218
 219     WARN("(%p)->(%s,%p),not found\n", iface, debugstr_guid(riid), ppv);
 220     return E_NOINTERFACE;
 221 }
 222
 223 static ULONG WINAPI CF_AddRef(IClassFactory *iface)
 224 {
 225     URLMON_LockModule();
 226     return 2;
 227 }
 228
 229 static ULONG WINAPI CF_Release(IClassFactory *iface)
 230 {
 231     URLMON_UnlockModule();
 232     return 1;
 233 }
 234
 235
 236 static HRESULT WINAPI CF_CreateInstance(IClassFactory *iface, IUnknown *pOuter,
 237                                         REFIID riid, LPVOID *ppobj)
 238 {
 239     ClassFactory *This = impl_from_IClassFactory(iface);
 240     HRESULT hres;
 241     LPUNKNOWN punk;
 242
 243     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 244
 245     *ppobj = NULL;
 246     if(SUCCEEDED(hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk))) {
 247         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 248         IUnknown_Release(punk);
 249     }
 250     return hres;
 251 }
 252
 253 static HRESULT WINAPI CF_LockServer(LPCLASSFACTORY iface,BOOL dolock)
 254 {
 255     TRACE("(%d)\n", dolock);
 256
 257     if (dolock)
 258            URLMON_LockModule();
 259     else
 260            URLMON_UnlockModule();
 261
 262     return S_OK;
 263 }
 264
 265 static const IClassFactoryVtbl ClassFactoryVtbl =
 266 {
 267     CF_QueryInterface,
 268     CF_AddRef,
 269     CF_Release,
 270     CF_CreateInstance,
 271     CF_LockServer
 272 };
 273
 274 static ClassFactory FileProtocolCF =
 275     { { &ClassFactoryVtbl }, FileProtocol_Construct};
 276 static ClassFactory FtpProtocolCF =
 277     { { &ClassFactoryVtbl }, FtpProtocol_Construct};
 278 static ClassFactory GopherProtocolCF =
 279     { { &ClassFactoryVtbl }, GopherProtocol_Construct};
 280 static ClassFactory HttpProtocolCF =
 281     { { &ClassFactoryVtbl }, HttpProtocol_Construct};
 282 static ClassFactory HttpSProtocolCF =
 283     { { &ClassFactoryVtbl }, HttpSProtocol_Construct};
 284 static ClassFactory MkProtocolCF =
 285     { { &ClassFactoryVtbl }, MkProtocol_Construct};
 286 static ClassFactory SecurityManagerCF =
 287     { { &ClassFactoryVtbl }, SecManagerImpl_Construct};
 288 static ClassFactory ZoneManagerCF =
 289     { { &ClassFactoryVtbl }, ZoneMgrImpl_Construct};
 290 static ClassFactory StdURLMonikerCF =
 291     { { &ClassFactoryVtbl }, StdURLMoniker_Construct};
 292 static ClassFactory MimeFilterCF =
 293     { { &ClassFactoryVtbl }, MimeFilter_Construct};
 294
 295 struct object_creation_info
 296 {
 297     const CLSID *clsid;
 298     IClassFactory *cf;
 299     LPCWSTR protocol;
 300 };
 301
 302 static const WCHAR wszFile[] = {'f','i','l','e',0};
 303 static const WCHAR wszFtp[]  = {'f','t','p',0};
 304 static const WCHAR wszGopher[]  = {'g','o','p','h','e','r',0};
 305 static const WCHAR wszHttp[] = {'h','t','t','p',0};
 306 static const WCHAR wszHttps[] = {'h','t','t','p','s',0};
 307 static const WCHAR wszMk[]   = {'m','k',0};
 308
 309 static const struct object_creation_info object_creation[] =
 310 {
 311     { &CLSID_FileProtocol,            &FileProtocolCF.IClassFactory_iface,    wszFile },
 312     { &CLSID_FtpProtocol,             &FtpProtocolCF.IClassFactory_iface,     wszFtp  },
 313     { &CLSID_GopherProtocol,          &GopherProtocolCF.IClassFactory_iface,  wszGopher },
 314     { &CLSID_HttpProtocol,            &HttpProtocolCF.IClassFactory_iface,    wszHttp },
 315     { &CLSID_HttpSProtocol,           &HttpSProtocolCF.IClassFactory_iface,   wszHttps },
 316     { &CLSID_MkProtocol,              &MkProtocolCF.IClassFactory_iface,      wszMk },
 317     { &CLSID_InternetSecurityManager, &SecurityManagerCF.IClassFactory_iface, NULL    },
 318     { &CLSID_InternetZoneManager,     &ZoneManagerCF.IClassFactory_iface,     NULL    },
 319     { &CLSID_StdURLMoniker,           &StdURLMonikerCF.IClassFactory_iface,   NULL    },
 320     { &CLSID_DeCompMimeFilter,        &MimeFilterCF.IClassFactory_iface,      NULL    }
 321 };
 322
 323 static void init_session(BOOL init)
 324 {
 325     unsigned int i;
 326
 327     for(i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++) {
 328
 329         if(object_creation[i].protocol)
 330             register_urlmon_namespace(object_creation[i].cf, object_creation[i].clsid,
 331                                       object_creation[i].protocol, init);
 332     }
 333 }
 334
 335 /*******************************************************************************
 336  * DllGetClassObject [URLMON.@]
 337  * Retrieves class object from a DLL object
 338  *
 339  * NOTES
 340  *    Docs say returns STDAPI
 341  *
 342  * PARAMS
 343  *    rclsid [I] CLSID for the class object
 344  *    riid   [I] Reference to identifier of interface for class object
 345  *    ppv    [O] Address of variable to receive interface pointer for riid
 346  *
 347  * RETURNS
 348  *    Success: S_OK
 349  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 350  *             E_UNEXPECTED
 351  */
 352
 353 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 354 {
 355     unsigned int i;
 356     HRESULT hr;
 357
 358     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 359
 360     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 361     {
 362         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 363             return IClassFactory_QueryInterface(object_creation[i].cf, riid, ppv);
 364     }
 365
 366     hr = URLMON_DllGetClassObject(rclsid, riid, ppv);
 367     if(SUCCEEDED(hr))
 368         return hr;
 369
 370     FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 371     return CLASS_E_CLASSNOTAVAILABLE;
 372 }
 373
 374 static HRESULT register_inf(BOOL doregister)
 375 {
 376     HRESULT (WINAPI *pRegInstall)(HMODULE hm, LPCSTR pszSection, const STRTABLEA* pstTable);
 377     HMODULE hAdvpack;
 378
 379     static const WCHAR wszAdvpack[] = {'a','d','v','p','a','c','k','.','d','l','l',0};
 380
 381     hAdvpack = LoadLibraryW(wszAdvpack);
 382     pRegInstall = (void *)GetProcAddress(hAdvpack, "RegInstall");
 383
 384     return pRegInstall(hProxyDll, doregister ? "RegisterDll" : "UnregisterDll", NULL);
 385 }
 386
 387 /***********************************************************************
 388  *              DllRegisterServer (URLMON.@)
 389  */
 390 HRESULT WINAPI DllRegisterServer(void)
 391 {
 392     HRESULT hr;
 393
 394     TRACE("\n");
 395
 396     hr = URLMON_DllRegisterServer();
 397     return SUCCEEDED(hr) ? register_inf(TRUE) : hr;
 398 }
 399
 400 /***********************************************************************
 401  *              DllUnregisterServer (URLMON.@)
 402  */
 403 HRESULT WINAPI DllUnregisterServer(void)
 404 {
 405     HRESULT hr;
 406
 407     TRACE("\n");
 408
 409     hr = URLMON_DllUnregisterServer();
 410     return SUCCEEDED(hr) ? register_inf(FALSE) : hr;
 411 }
 412
 413 /***********************************************************************
 414  *              DllRegisterServerEx (URLMON.@)
 415  */
 416 HRESULT WINAPI DllRegisterServerEx(void)
 417 {
 418     FIXME("(void): stub\n");
 419
 420     return E_FAIL;
 421 }
 422
 423 /**************************************************************************
 424  *                 IsValidURL (URLMON.@)
 425  *
 426  * Determines if a specified string is a valid URL.
 427  *
 428  * PARAMS
 429  *  pBC        [I] ignored, should be NULL.
 430  *  szURL      [I] string that represents the URL in question.
 431  *  dwReserved [I] reserved and must be zero.
 432  *
 433  * RETURNS
 434  *  Success: S_OK.
 435  *  Failure: S_FALSE.
 436  *  returns E_INVALIDARG if one or more of the args is invalid.
 437  *
 438  * TODO:
 439  *  test functionality against windows to see what a valid URL is.
 440  */
 441 HRESULT WINAPI IsValidURL(LPBC pBC, LPCWSTR szURL, DWORD dwReserved)
 442 {
 443     FIXME("(%p, %s, %d): stub\n", pBC, debugstr_w(szURL), dwReserved);
 444
 445     if (dwReserved || !szURL)
 446         return E_INVALIDARG;
 447
 448     return S_OK;
 449 }
 450
 451 /**************************************************************************
 452  *                 FaultInIEFeature (URLMON.@)
 453  *
 454  *  Undocumented.  Appears to be used by native shdocvw.dll.
 455  */
 456 HRESULT WINAPI FaultInIEFeature( HWND hwnd, uCLSSPEC * pClassSpec,
 457                                  QUERYCONTEXT *pQuery, DWORD flags )
 458 {
 459     FIXME("%p %p %p %08x\n", hwnd, pClassSpec, pQuery, flags);
 460     return E_NOTIMPL;
 461 }
 462
 463 /**************************************************************************
 464  *                 CoGetClassObjectFromURL (URLMON.@)
 465  */
 466 HRESULT WINAPI CoGetClassObjectFromURL( REFCLSID rclsid, LPCWSTR szCodeURL, DWORD dwFileVersionMS,
 467                                         DWORD dwFileVersionLS, LPCWSTR szContentType,
 468                                         LPBINDCTX pBindCtx, DWORD dwClsContext, LPVOID pvReserved,
 469                                         REFIID riid, LPVOID *ppv )
 470 {
 471     FIXME("(%s %s %d %d %s %p %d %p %s %p) Stub!\n", debugstr_guid(rclsid), debugstr_w(szCodeURL),
 472         dwFileVersionMS, dwFileVersionLS, debugstr_w(szContentType), pBindCtx, dwClsContext, pvReserved,
 473         debugstr_guid(riid), ppv);
 474     return E_NOINTERFACE;
 475 }
 476
 477 /***********************************************************************
 478  *           ReleaseBindInfo (URLMON.@)
 479  *
 480  * Release the resources used by the specified BINDINFO structure.
 481  *
 482  * PARAMS
 483  *  pbindinfo [I] BINDINFO to release.
 484  *
 485  * RETURNS
 486  *  Nothing.
 487  */
 488 void WINAPI ReleaseBindInfo(BINDINFO* pbindinfo)
 489 {
 490     DWORD size;
 491
 492     TRACE("(%p)\n", pbindinfo);
 493
 494     if(!pbindinfo || !(size = pbindinfo->cbSize))
 495         return;
 496
 497     CoTaskMemFree(pbindinfo->szExtraInfo);
 498     ReleaseStgMedium(&pbindinfo->stgmedData);
 499
 500     if(offsetof(BINDINFO, szExtraInfo) < size)
 501         CoTaskMemFree(pbindinfo->szCustomVerb);
 502
 503     if(pbindinfo->pUnk && offsetof(BINDINFO, pUnk) < size)
 504         IUnknown_Release(pbindinfo->pUnk);
 505
 506     memset(pbindinfo, 0, size);
 507     pbindinfo->cbSize = size;
 508 }
 509
 510 /***********************************************************************
 511  *           CopyStgMedium (URLMON.@)
 512  */
 513 HRESULT WINAPI CopyStgMedium(const STGMEDIUM *src, STGMEDIUM *dst)
 514 {
 515     TRACE("(%p %p)\n", src, dst);
 516
 517     if(!src || !dst)
 518         return E_POINTER;
 519
 520     *dst = *src;
 521
 522     switch(dst->tymed) {
 523     case TYMED_NULL:
 524         break;
 525     case TYMED_FILE:
 526         if(src->u.lpszFileName && !src->pUnkForRelease) {
 527             DWORD size = (strlenW(src->u.lpszFileName)+1)*sizeof(WCHAR);
 528             dst->u.lpszFileName = CoTaskMemAlloc(size);
 529             memcpy(dst->u.lpszFileName, src->u.lpszFileName, size);
 530         }
 531         break;
 532     case TYMED_ISTREAM:
 533         if(dst->u.pstm)
 534             IStream_AddRef(dst->u.pstm);
 535         break;
 536     case TYMED_ISTORAGE:
 537         if(dst->u.pstg)
 538             IStorage_AddRef(dst->u.pstg);
 539         break;
 540     default:
 541         FIXME("Unimplemented tymed %d\n", src->tymed);
 542     }
 543
 544     if(dst->pUnkForRelease)
 545         IUnknown_AddRef(dst->pUnkForRelease);
 546
 547     return S_OK;
 548 }
 549
 550 static BOOL text_richtext_filter(const BYTE *b, DWORD size)
 551 {
 552     return size > 5 && !memcmp(b, "{\\rtf", 5);
 553 }
 554
 555 static BOOL text_html_filter(const BYTE *b, DWORD size)
 556 {
 557     DWORD i;
 558
 559     if(size < 5)
 560         return FALSE;
 561
 562     for(i=0; i < size-5; i++) {
 563         if(b[i] == '<'
 564            && (b[i+1] == 'h' || b[i+1] == 'H')
 565            && (b[i+2] == 't' || b[i+2] == 'T')
 566            && (b[i+3] == 'm' || b[i+3] == 'M')
 567            && (b[i+4] == 'l' || b[i+4] == 'L'))
 568             return TRUE;
 569     }
 570
 571     return FALSE;
 572 }
 573
 574 static BOOL audio_basic_filter(const BYTE *b, DWORD size)
 575 {
 576     return size > 4
 577         && b[0] == '.' && b[1] == 's' && b[2] == 'n' && b[3] == 'd';
 578 }
 579
 580 static BOOL audio_wav_filter(const BYTE *b, DWORD size)
 581 {
 582     return size > 12
 583         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 584         && b[8] == 'W' && b[9] == 'A' && b[10] == 'V' && b[11] == 'E';
 585 }
 586
 587 static BOOL image_gif_filter(const BYTE *b, DWORD size)
 588 {
 589     return size >= 6
 590         && (b[0] == 'G' || b[0] == 'g')
 591         && (b[1] == 'I' || b[1] == 'i')
 592         && (b[2] == 'F' || b[2] == 'f')
 593         &&  b[3] == '8'
 594         && (b[4] == '7' || b[4] == '9')
 595         && (b[5] == 'A' || b[5] == 'a');
 596 }
 597
 598 static BOOL image_pjpeg_filter(const BYTE *b, DWORD size)
 599 {
 600     return size > 2 && b[0] == 0xff && b[1] == 0xd8;
 601 }
 602
 603 static BOOL image_tiff_filter(const BYTE *b, DWORD size)
 604 {
 605     return size > 2 && b[0] == 0x4d && b[1] == 0x4d;
 606 }
 607
 608 static BOOL image_xpng_filter(const BYTE *b, DWORD size)
 609 {
 610     static const BYTE xpng_header[] = {0x89,'P','N','G',0x0d,0x0a,0x1a,0x0a};
 611     return size > sizeof(xpng_header) && !memcmp(b, xpng_header, sizeof(xpng_header));
 612 }
 613
 614 static BOOL image_bmp_filter(const BYTE *b, DWORD size)
 615 {
 616     return size >= 14
 617         && b[0] == 0x42 && b[1] == 0x4d
 618         && *(const DWORD *)(b+6) == 0;
 619 }
 620
 621 static BOOL video_avi_filter(const BYTE *b, DWORD size)
 622 {
 623     return size > 12
 624         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 625         && b[8] == 'A' && b[9] == 'V' && b[10] == 'I' && b[11] == 0x20;
 626 }
 627
 628 static BOOL video_mpeg_filter(const BYTE *b, DWORD size)
 629 {
 630     return size > 4
 631         && !b[0] && !b[1] && b[2] == 0x01
 632         && (b[3] == 0xb3 || b[3] == 0xba);
 633 }
 634
 635 static BOOL application_postscript_filter(const BYTE *b, DWORD size)
 636 {
 637     return size > 2 && b[0] == '%' && b[1] == '!';
 638 }
 639
 640 static BOOL application_pdf_filter(const BYTE *b, DWORD size)
 641 {
 642     return size > 4 && b[0] == 0x25 && b[1] == 0x50 && b[2] == 0x44 && b[3] == 0x46;
 643 }
 644
 645 static BOOL application_xzip_filter(const BYTE *b, DWORD size)
 646 {
 647     return size > 2 && b[0] == 0x50 && b[1] == 0x4b;
 648 }
 649
 650 static BOOL application_xgzip_filter(const BYTE *b, DWORD size)
 651 {
 652     return size > 2 && b[0] == 0x1f && b[1] == 0x8b;
 653 }
 654
 655 static BOOL application_java_filter(const BYTE *b, DWORD size)
 656 {
 657     return size > 4 && b[0] == 0xca && b[1] == 0xfe && b[2] == 0xba && b[3] == 0xbe;
 658 }
 659
 660 static BOOL application_xmsdownload(const BYTE *b, DWORD size)
 661 {
 662     return size > 2 && b[0] == 'M' && b[1] == 'Z';
 663 }
 664
 665 static BOOL text_plain_filter(const BYTE *b, DWORD size)
 666 {
 667     const BYTE *ptr;
 668
 669     for(ptr = b; ptr < b+size-1; ptr++) {
 670         if(*ptr < 0x20 && *ptr != '\n' && *ptr != '\r' && *ptr != '\t')
 671             return FALSE;
 672     }
 673
 674     return TRUE;
 675 }
 676
 677 static BOOL application_octet_stream_filter(const BYTE *b, DWORD size)
 678 {
 679     return TRUE;
 680 }
 681
 682 static HRESULT find_mime_from_buffer(const BYTE *buf, DWORD size, const WCHAR *proposed_mime, WCHAR **ret_mime)
 683 {
 684     LPCWSTR ret = NULL;
 685     DWORD len, i;
 686
 687     static const WCHAR text_htmlW[] = {'t','e','x','t','/','h','t','m','l',0};
 688     static const WCHAR text_richtextW[] = {'t','e','x','t','/','r','i','c','h','t','e','x','t',0};
 689     static const WCHAR audio_basicW[] = {'a','u','d','i','o','/','b','a','s','i','c',0};
 690     static const WCHAR audio_wavW[] = {'a','u','d','i','o','/','w','a','v',0};
 691     static const WCHAR image_gifW[] = {'i','m','a','g','e','/','g','i','f',0};
 692     static const WCHAR image_pjpegW[] = {'i','m','a','g','e','/','p','j','p','e','g',0};
 693     static const WCHAR image_tiffW[] = {'i','m','a','g','e','/','t','i','f','f',0};
 694     static const WCHAR image_xpngW[] = {'i','m','a','g','e','/','x','-','p','n','g',0};
 695     static const WCHAR image_bmpW[] = {'i','m','a','g','e','/','b','m','p',0};
 696     static const WCHAR video_aviW[] = {'v','i','d','e','o','/','a','v','i',0};
 697     static const WCHAR video_mpegW[] = {'v','i','d','e','o','/','m','p','e','g',0};
 698     static const WCHAR app_postscriptW[] =
 699         {'a','p','p','l','i','c','a','t','i','o','n','/','p','o','s','t','s','c','r','i','p','t',0};
 700     static const WCHAR app_pdfW[] = {'a','p','p','l','i','c','a','t','i','o','n','/','p','d','f',0};
 701     static const WCHAR app_xzipW[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 702         'x','-','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 703     static const WCHAR app_xgzipW[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 704         'x','-','g','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 705     static const WCHAR app_javaW[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 706         'j','a','v','a',0};
 707     static const WCHAR app_xmsdownloadW[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 708         'x','-','m','s','d','o','w','n','l','o','a','d',0};
 709     static const WCHAR text_plainW[] = {'t','e','x','t','/','p','l','a','i','n','\0'};
 710     static const WCHAR app_octetstreamW[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 711         'o','c','t','e','t','-','s','t','r','e','a','m','\0'};
 712
 713     static const struct {
 714         LPCWSTR mime;
 715         BOOL (*filter)(const BYTE *,DWORD);
 716     } mime_filters[] = {
 717         {text_htmlW,       text_html_filter},
 718         {text_richtextW,   text_richtext_filter},
 719      /* {audio_xaiffW,     audio_xaiff_filter}, */
 720         {audio_basicW,     audio_basic_filter},
 721         {audio_wavW,       audio_wav_filter},
 722         {image_gifW,       image_gif_filter},
 723         {image_pjpegW,     image_pjpeg_filter},
 724         {image_tiffW,      image_tiff_filter},
 725         {image_xpngW,      image_xpng_filter},
 726      /* {image_xbitmapW,   image_xbitmap_filter}, */
 727         {image_bmpW,       image_bmp_filter},
 728      /* {image_xjgW,       image_xjg_filter}, */
 729      /* {image_xemfW,      image_xemf_filter}, */
 730      /* {image_xwmfW,      image_xwmf_filter}, */
 731         {video_aviW,       video_avi_filter},
 732         {video_mpegW,      video_mpeg_filter},
 733         {app_postscriptW,  application_postscript_filter},
 734      /* {app_base64W,      application_base64_filter}, */
 735      /* {app_macbinhex40W, application_macbinhex40_filter}, */
 736         {app_pdfW,         application_pdf_filter},
 737      /* {app_zcompressedW, application_xcompressed_filter}, */
 738         {app_xzipW,        application_xzip_filter},
 739         {app_xgzipW,       application_xgzip_filter},
 740         {app_javaW,        application_java_filter},
 741         {app_xmsdownloadW, application_xmsdownload},
 742         {text_plainW,      text_plain_filter},
 743         {app_octetstreamW, application_octet_stream_filter}
 744     };
 745
 746     if(!buf || !size) {
 747         if(!proposed_mime)
 748             return E_FAIL;
 749
 750         len = strlenW(proposed_mime)+1;
 751         *ret_mime = CoTaskMemAlloc(len*sizeof(WCHAR));
 752         if(!*ret_mime)
 753             return E_OUTOFMEMORY;
 754
 755         memcpy(*ret_mime, proposed_mime, len*sizeof(WCHAR));
 756         return S_OK;
 757     }
 758
 759     if(proposed_mime && strcmpW(proposed_mime, app_octetstreamW)) {
 760         for(i=0; i < sizeof(mime_filters)/sizeof(*mime_filters); i++) {
 761             if(!strcmpW(proposed_mime, mime_filters[i].mime))
 762                 break;
 763         }
 764
 765         if(i == sizeof(mime_filters)/sizeof(*mime_filters) || mime_filters[i].filter(buf, size)) {
 766             len = strlenW(proposed_mime)+1;
 767             *ret_mime = CoTaskMemAlloc(len*sizeof(WCHAR));
 768             if(!*ret_mime)
 769                 return E_OUTOFMEMORY;
 770
 771             memcpy(*ret_mime, proposed_mime, len*sizeof(WCHAR));
 772             return S_OK;
 773         }
 774     }
 775
 776     i=0;
 777     while(!ret) {
 778         if(mime_filters[i].filter(buf, size))
 779             ret = mime_filters[i].mime;
 780         i++;
 781     }
 782
 783     TRACE("found %s for %s\n", debugstr_w(ret), debugstr_an((const char*)buf, min(32, size)));
 784
 785     if(proposed_mime) {
 786         if(i == sizeof(mime_filters)/sizeof(*mime_filters))
 787             ret = proposed_mime;
 788
 789         /* text/html is a special case */
 790         if(!strcmpW(proposed_mime, text_htmlW) && !strcmpW(ret, text_plainW))
 791             ret = text_htmlW;
 792     }
 793
 794     len = strlenW(ret)+1;
 795     *ret_mime = CoTaskMemAlloc(len*sizeof(WCHAR));
 796     if(!*ret_mime)
 797         return E_OUTOFMEMORY;
 798
 799     memcpy(*ret_mime, ret, len*sizeof(WCHAR));
 800     return S_OK;
 801 }
 802
 803 /***********************************************************************
 804  *           FindMimeFromData (URLMON.@)
 805  *
 806  * Determines the Multipurpose Internet Mail Extensions (MIME) type from the data provided.
 807  */
 808 HRESULT WINAPI FindMimeFromData(LPBC pBC, LPCWSTR pwzUrl, LPVOID pBuffer,
 809         DWORD cbSize, LPCWSTR pwzMimeProposed, DWORD dwMimeFlags,
 810         LPWSTR* ppwzMimeOut, DWORD dwReserved)
 811 {
 812     TRACE("(%p,%s,%p,%d,%s,0x%x,%p,0x%x)\n", pBC, debugstr_w(pwzUrl), pBuffer, cbSize,
 813             debugstr_w(pwzMimeProposed), dwMimeFlags, ppwzMimeOut, dwReserved);
 814
 815     if(dwMimeFlags)
 816         WARN("dwMimeFlags=%08x\n", dwMimeFlags);
 817     if(dwReserved)
 818         WARN("dwReserved=%d\n", dwReserved);
 819
 820     /* pBC seams to not be used */
 821
 822     if(!ppwzMimeOut || (!pwzUrl && !pBuffer))
 823         return E_INVALIDARG;
 824
 825     if(pwzMimeProposed || pBuffer)
 826         return find_mime_from_buffer(pBuffer, cbSize, pwzMimeProposed, ppwzMimeOut);
 827
 828     if(pwzUrl) {
 829         HKEY hkey;
 830         DWORD res, size;
 831         LPCWSTR ptr;
 832         WCHAR mime[64];
 833
 834         static const WCHAR wszContentType[] =
 835                 {'C','o','n','t','e','n','t',' ','T','y','p','e','\0'};
 836
 837         ptr = strrchrW(pwzUrl, '.');
 838         if(!ptr)
 839             return E_FAIL;
 840
 841         res = RegOpenKeyW(HKEY_CLASSES_ROOT, ptr, &hkey);
 842         if(res != ERROR_SUCCESS)
 843             return HRESULT_FROM_WIN32(res);
 844
 845         size = sizeof(mime);
 846         res = RegQueryValueExW(hkey, wszContentType, NULL, NULL, (LPBYTE)mime, &size);
 847         RegCloseKey(hkey);
 848         if(res != ERROR_SUCCESS)
 849             return HRESULT_FROM_WIN32(res);
 850
 851         *ppwzMimeOut = CoTaskMemAlloc(size);
 852         memcpy(*ppwzMimeOut, mime, size);
 853         return S_OK;
 854     }
 855
 856     return E_FAIL;
 857 }
 858
 859 /***********************************************************************
 860  *           GetClassFileOrMime (URLMON.@)
 861  *
 862  * Determines the class ID from the bind context, file name or MIME type.
 863  */
 864 HRESULT WINAPI GetClassFileOrMime(LPBC pBC, LPCWSTR pszFilename,
 865         LPVOID pBuffer, DWORD cbBuffer, LPCWSTR pszMimeType, DWORD dwReserved,
 866         CLSID *pclsid)
 867 {
 868     FIXME("(%p, %s, %p, %d, %p, 0x%08x, %p): stub\n", pBC,
 869         debugstr_w(pszFilename), pBuffer, cbBuffer, debugstr_w(pszMimeType),
 870         dwReserved, pclsid);
 871     return E_NOTIMPL;
 872 }
 873
 874 /***********************************************************************
 875  * Extract (URLMON.@)
 876  */
 877 HRESULT WINAPI Extract(void *dest, LPCSTR szCabName)
 878 {
 879     HRESULT (WINAPI *pExtract)(void *, LPCSTR);
 880
 881     if (!hCabinet)
 882         hCabinet = LoadLibraryA("cabinet.dll");
 883
 884     if (!hCabinet) return HRESULT_FROM_WIN32(GetLastError());
 885     pExtract = (void *)GetProcAddress(hCabinet, "Extract");
 886     if (!pExtract) return HRESULT_FROM_WIN32(GetLastError());
 887
 888     return pExtract(dest, szCabName);
 889 }
 890
 891 /***********************************************************************
 892  *           IsLoggingEnabledA (URLMON.@)
 893  */
 894 BOOL WINAPI IsLoggingEnabledA(LPCSTR url)
 895 {
 896     FIXME("(%s)\n", debugstr_a(url));
 897     return FALSE;
 898 }
 899
 900 /***********************************************************************
 901  *           IsLoggingEnabledW (URLMON.@)
 902  */
 903 BOOL WINAPI IsLoggingEnabledW(LPCWSTR url)
 904 {
 905     FIXME("(%s)\n", debugstr_w(url));
 906     return FALSE;
 907 }
 908
 909 /***********************************************************************
 910  *           URLMON_410 (URLMON.410)
 911  *    Undocumented, added in IE8
 912  */
 913 BOOL WINAPI URLMON_410(DWORD unknown1, DWORD unknown2)
 914 {
 915     FIXME("stub: %d %d\n", unknown1, unknown2);
 916     return FALSE;
 917 }
 918
 919 /***********************************************************************
 920  *           URLMON_423 (URLMON.423)
 921  *    Undocumented, added in IE8
 922  */
 923 BOOL WINAPI URLMON_423(DWORD unknown1, DWORD unknown2, DWORD unknown3, DWORD unknown4)
 924 {
 925     FIXME("stub: %d %d %d %d\n", unknown1, unknown2, unknown3, unknown4);
 926     return FALSE;
 927 }