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 "wine/debug.h"
  30
  31 #include "urlmon.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(urlmon);
  34
  35 LONG URLMON_refCount = 0;
  36
  37 static HMODULE hCabinet = NULL;
  38 static DWORD urlmon_tls = TLS_OUT_OF_INDEXES;
  39
  40 static void init_session(BOOL);
  41
  42 static struct list tls_list = LIST_INIT(tls_list);
  43
  44 static CRITICAL_SECTION tls_cs;
  45 static CRITICAL_SECTION_DEBUG tls_cs_dbg =
  46 {
  47     0, 0, &tls_cs,
  48     { &tls_cs_dbg.ProcessLocksList, &tls_cs_dbg.ProcessLocksList },
  49       0, 0, { (DWORD_PTR)(__FILE__ ": tls") }
  50 };
  51
  52 static CRITICAL_SECTION tls_cs = { &tls_cs_dbg, -1, 0, 0, 0, 0 };
  53
  54 tls_data_t *get_tls_data(void)
  55 {
  56     tls_data_t *data;
  57
  58     if(urlmon_tls == TLS_OUT_OF_INDEXES) {
  59         DWORD tls = TlsAlloc();
  60         if(tls == TLS_OUT_OF_INDEXES)
  61             return NULL;
  62
  63         tls = InterlockedCompareExchange((LONG*)&urlmon_tls, tls, TLS_OUT_OF_INDEXES);
  64         if(tls != urlmon_tls)
  65             TlsFree(tls);
  66     }
  67
  68     data = TlsGetValue(urlmon_tls);
  69     if(!data) {
  70         data = heap_alloc_zero(sizeof(tls_data_t));
  71         if(!data)
  72             return NULL;
  73
  74         EnterCriticalSection(&tls_cs);
  75         list_add_tail(&tls_list, &data->entry);
  76         LeaveCriticalSection(&tls_cs);
  77
  78         TlsSetValue(urlmon_tls, data);
  79     }
  80
  81     return data;
  82 }
  83
  84 static void free_tls_list(void)
  85 {
  86     tls_data_t *data;
  87
  88     if(urlmon_tls == TLS_OUT_OF_INDEXES)
  89         return;
  90
  91     while(!list_empty(&tls_list)) {
  92         data = LIST_ENTRY(list_head(&tls_list), tls_data_t, entry);
  93         list_remove(&data->entry);
  94         heap_free(data);
  95     }
  96
  97     TlsFree(urlmon_tls);
  98 }
  99
 100 static void detach_thread(void)
 101 {
 102     tls_data_t *data;
 103
 104     if(urlmon_tls == TLS_OUT_OF_INDEXES)
 105         return;
 106
 107     data = TlsGetValue(urlmon_tls);
 108     if(!data)
 109         return;
 110
 111     EnterCriticalSection(&tls_cs);
 112     list_remove(&data->entry);
 113     LeaveCriticalSection(&tls_cs);
 114
 115     if(data->notif_hwnd) {
 116         WARN("notif_hwnd not destroyed\n");
 117         DestroyWindow(data->notif_hwnd);
 118     }
 119
 120     heap_free(data);
 121 }
 122
 123 static void process_detach(void)
 124 {
 125     HINTERNET internet_session;
 126
 127     internet_session = get_internet_session(NULL);
 128     if(internet_session)
 129         InternetCloseHandle(internet_session);
 130
 131     if (hCabinet)
 132         FreeLibrary(hCabinet);
 133
 134     init_session(FALSE);
 135     free_session();
 136     free_tls_list();
 137 }
 138
 139 /***********************************************************************
 140  *              DllMain (URLMON.init)
 141  */
 142 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
 143 {
 144     TRACE("%p 0x%x %p\n", hinstDLL, fdwReason, fImpLoad);
 145
 146     URLMON_DllMain( hinstDLL, fdwReason, fImpLoad );
 147
 148     switch(fdwReason) {
 149     case DLL_PROCESS_ATTACH:
 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     HRESULT hr;
 352
 353     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 354
 355     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 356     {
 357         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 358             return IClassFactory_QueryInterface(object_creation[i].cf, riid, ppv);
 359     }
 360
 361     hr = URLMON_DllGetClassObject(rclsid, riid, ppv);
 362     if(SUCCEEDED(hr))
 363         return hr;
 364
 365     FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 366     return CLASS_E_CLASSNOTAVAILABLE;
 367 }
 368
 369
 370 /***********************************************************************
 371  *              DllRegisterServerEx (URLMON.@)
 372  */
 373 HRESULT WINAPI DllRegisterServerEx(void)
 374 {
 375     FIXME("(void): stub\n");
 376
 377     return E_FAIL;
 378 }
 379
 380 /**************************************************************************
 381  *                 IsValidURL (URLMON.@)
 382  *
 383  * Determines if a specified string is a valid URL.
 384  *
 385  * PARAMS
 386  *  pBC        [I] ignored, must be NULL.
 387  *  szURL      [I] string that represents the URL in question.
 388  *  dwReserved [I] reserved and must be zero.
 389  *
 390  * RETURNS
 391  *  Success: S_OK.
 392  *  Failure: S_FALSE.
 393  *  returns E_INVALIDARG if one or more of the args is invalid.
 394  *
 395  * TODO:
 396  *  test functionality against windows to see what a valid URL is.
 397  */
 398 HRESULT WINAPI IsValidURL(LPBC pBC, LPCWSTR szURL, DWORD dwReserved)
 399 {
 400     FIXME("(%p, %s, %d): stub\n", pBC, debugstr_w(szURL), dwReserved);
 401
 402     if (pBC || dwReserved || !szURL)
 403         return E_INVALIDARG;
 404
 405     return S_OK;
 406 }
 407
 408 /**************************************************************************
 409  *                 FaultInIEFeature (URLMON.@)
 410  *
 411  *  Undocumented.  Appears to be used by native shdocvw.dll.
 412  */
 413 HRESULT WINAPI FaultInIEFeature( HWND hwnd, uCLSSPEC * pClassSpec,
 414                                  QUERYCONTEXT *pQuery, DWORD flags )
 415 {
 416     FIXME("%p %p %p %08x\n", hwnd, pClassSpec, pQuery, flags);
 417     return E_NOTIMPL;
 418 }
 419
 420 /**************************************************************************
 421  *                 CoGetClassObjectFromURL (URLMON.@)
 422  */
 423 HRESULT WINAPI CoGetClassObjectFromURL( REFCLSID rclsid, LPCWSTR szCodeURL, DWORD dwFileVersionMS,
 424                                         DWORD dwFileVersionLS, LPCWSTR szContentType,
 425                                         LPBINDCTX pBindCtx, DWORD dwClsContext, LPVOID pvReserved,
 426                                         REFIID riid, LPVOID *ppv )
 427 {
 428     FIXME("(%s %s %d %d %s %p %d %p %s %p) Stub!\n", debugstr_guid(rclsid), debugstr_w(szCodeURL),
 429         dwFileVersionMS, dwFileVersionLS, debugstr_w(szContentType), pBindCtx, dwClsContext, pvReserved,
 430         debugstr_guid(riid), ppv);
 431     return E_NOINTERFACE;
 432 }
 433
 434 /***********************************************************************
 435  *           ReleaseBindInfo (URLMON.@)
 436  *
 437  * Release the resources used by the specified BINDINFO structure.
 438  *
 439  * PARAMS
 440  *  pbindinfo [I] BINDINFO to release.
 441  *
 442  * RETURNS
 443  *  Nothing.
 444  */
 445 void WINAPI ReleaseBindInfo(BINDINFO* pbindinfo)
 446 {
 447     DWORD size;
 448
 449     TRACE("(%p)\n", pbindinfo);
 450
 451     if(!pbindinfo || !(size = pbindinfo->cbSize))
 452         return;
 453
 454     CoTaskMemFree(pbindinfo->szExtraInfo);
 455     ReleaseStgMedium(&pbindinfo->stgmedData);
 456
 457     if(offsetof(BINDINFO, szExtraInfo) < size)
 458         CoTaskMemFree(pbindinfo->szCustomVerb);
 459
 460     if(pbindinfo->pUnk && offsetof(BINDINFO, pUnk) < size)
 461         IUnknown_Release(pbindinfo->pUnk);
 462
 463     memset(pbindinfo, 0, size);
 464     pbindinfo->cbSize = size;
 465 }
 466
 467 /***********************************************************************
 468  *           CopyStgMedium (URLMON.@)
 469  */
 470 HRESULT WINAPI CopyStgMedium(const STGMEDIUM *src, STGMEDIUM *dst)
 471 {
 472     TRACE("(%p %p)\n", src, dst);
 473
 474     if(!src || !dst)
 475         return E_POINTER;
 476
 477     *dst = *src;
 478
 479     switch(dst->tymed) {
 480     case TYMED_NULL:
 481         break;
 482     case TYMED_FILE:
 483         if(src->u.lpszFileName && !src->pUnkForRelease) {
 484             DWORD size = (strlenW(src->u.lpszFileName)+1)*sizeof(WCHAR);
 485             dst->u.lpszFileName = CoTaskMemAlloc(size);
 486             memcpy(dst->u.lpszFileName, src->u.lpszFileName, size);
 487         }
 488         break;
 489     case TYMED_ISTREAM:
 490         if(dst->u.pstm)
 491             IStream_AddRef(dst->u.pstm);
 492         break;
 493     case TYMED_ISTORAGE:
 494         if(dst->u.pstg)
 495             IStorage_AddRef(dst->u.pstg);
 496         break;
 497     default:
 498         FIXME("Unimplemented tymed %d\n", src->tymed);
 499     }
 500
 501     if(dst->pUnkForRelease)
 502         IUnknown_AddRef(dst->pUnkForRelease);
 503
 504     return S_OK;
 505 }
 506
 507 static BOOL text_richtext_filter(const BYTE *b, DWORD size)
 508 {
 509     return size > 5 && !memcmp(b, "{\\rtf", 5);
 510 }
 511
 512 static BOOL text_html_filter(const BYTE *b, DWORD size)
 513 {
 514     DWORD i;
 515
 516     if(size < 5)
 517         return FALSE;
 518
 519     for(i=0; i < size-5; i++) {
 520         if(b[i] == '<'
 521            && (b[i+1] == 'h' || b[i+1] == 'H')
 522            && (b[i+2] == 't' || b[i+2] == 'T')
 523            && (b[i+3] == 'm' || b[i+3] == 'M')
 524            && (b[i+4] == 'l' || b[i+4] == 'L'))
 525             return TRUE;
 526     }
 527
 528     return FALSE;
 529 }
 530
 531 static BOOL audio_basic_filter(const BYTE *b, DWORD size)
 532 {
 533     return size > 4
 534         && b[0] == '.' && b[1] == 's' && b[2] == 'n' && b[3] == 'd';
 535 }
 536
 537 static BOOL audio_wav_filter(const BYTE *b, DWORD size)
 538 {
 539     return size > 12
 540         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 541         && b[8] == 'W' && b[9] == 'A' && b[10] == 'V' && b[11] == 'E';
 542 }
 543
 544 static BOOL image_gif_filter(const BYTE *b, DWORD size)
 545 {
 546     return size >= 6
 547         && (b[0] == 'G' || b[0] == 'g')
 548         && (b[1] == 'I' || b[1] == 'i')
 549         && (b[2] == 'F' || b[2] == 'f')
 550         &&  b[3] == '8'
 551         && (b[4] == '7' || b[4] == '9')
 552         && (b[5] == 'A' || b[5] == 'a');
 553 }
 554
 555 static BOOL image_pjpeg_filter(const BYTE *b, DWORD size)
 556 {
 557     return size > 2 && b[0] == 0xff && b[1] == 0xd8;
 558 }
 559
 560 static BOOL image_tiff_filter(const BYTE *b, DWORD size)
 561 {
 562     return size > 2 && b[0] == 0x4d && b[1] == 0x4d;
 563 }
 564
 565 static BOOL image_xpng_filter(const BYTE *b, DWORD size)
 566 {
 567     static const BYTE xpng_header[] = {0x89,'P','N','G',0x0d,0x0a,0x1a,0x0a};
 568     return size > sizeof(xpng_header) && !memcmp(b, xpng_header, sizeof(xpng_header));
 569 }
 570
 571 static BOOL image_bmp_filter(const BYTE *b, DWORD size)
 572 {
 573     return size >= 14
 574         && b[0] == 0x42 && b[1] == 0x4d
 575         && *(const DWORD *)(b+6) == 0;
 576 }
 577
 578 static BOOL video_avi_filter(const BYTE *b, DWORD size)
 579 {
 580     return size > 12
 581         && b[0] == 'R' && b[1] == 'I' && b[2] == 'F' && b[3] == 'F'
 582         && b[8] == 'A' && b[9] == 'V' && b[10] == 'I' && b[11] == 0x20;
 583 }
 584
 585 static BOOL video_mpeg_filter(const BYTE *b, DWORD size)
 586 {
 587     return size > 4
 588         && !b[0] && !b[1] && b[2] == 0x01
 589         && (b[3] == 0xb3 || b[3] == 0xba);
 590 }
 591
 592 static BOOL application_postscript_filter(const BYTE *b, DWORD size)
 593 {
 594     return size > 2 && b[0] == '%' && b[1] == '!';
 595 }
 596
 597 static BOOL application_pdf_filter(const BYTE *b, DWORD size)
 598 {
 599     return size > 4 && b[0] == 0x25 && b[1] == 0x50 && b[2] == 0x44 && b[3] == 0x46;
 600 }
 601
 602 static BOOL application_xzip_filter(const BYTE *b, DWORD size)
 603 {
 604     return size > 2 && b[0] == 0x50 && b[1] == 0x4b;
 605 }
 606
 607 static BOOL application_xgzip_filter(const BYTE *b, DWORD size)
 608 {
 609     return size > 2 && b[0] == 0x1f && b[1] == 0x8b;
 610 }
 611
 612 static BOOL application_java_filter(const BYTE *b, DWORD size)
 613 {
 614     return size > 4 && b[0] == 0xca && b[1] == 0xfe && b[2] == 0xba && b[3] == 0xbe;
 615 }
 616
 617 static BOOL application_xmsdownload(const BYTE *b, DWORD size)
 618 {
 619     return size > 2 && b[0] == 'M' && b[1] == 'Z';
 620 }
 621
 622 static BOOL text_plain_filter(const BYTE *b, DWORD size)
 623 {
 624     const BYTE *ptr;
 625
 626     for(ptr = b; ptr < b+size-1; ptr++) {
 627         if(*ptr < 0x20 && *ptr != '\n' && *ptr != '\r' && *ptr != '\t')
 628             return FALSE;
 629     }
 630
 631     return TRUE;
 632 }
 633
 634 static BOOL application_octet_stream_filter(const BYTE *b, DWORD size)
 635 {
 636     return TRUE;
 637 }
 638
 639 static HRESULT find_mime_from_buffer(const BYTE *buf, DWORD size, const WCHAR *proposed_mime, WCHAR **ret_mime)
 640 {
 641     LPCWSTR ret = NULL;
 642     DWORD len, i;
 643
 644     static const WCHAR text_htmlW[] = {'t','e','x','t','/','h','t','m','l',0};
 645     static const WCHAR text_richtextW[] = {'t','e','x','t','/','r','i','c','h','t','e','x','t',0};
 646     static const WCHAR audio_basicW[] = {'a','u','d','i','o','/','b','a','s','i','c',0};
 647     static const WCHAR audio_wavW[] = {'a','u','d','i','o','/','w','a','v',0};
 648     static const WCHAR image_gifW[] = {'i','m','a','g','e','/','g','i','f',0};
 649     static const WCHAR image_pjpegW[] = {'i','m','a','g','e','/','p','j','p','e','g',0};
 650     static const WCHAR image_tiffW[] = {'i','m','a','g','e','/','t','i','f','f',0};
 651     static const WCHAR image_xpngW[] = {'i','m','a','g','e','/','x','-','p','n','g',0};
 652     static const WCHAR image_bmpW[] = {'i','m','a','g','e','/','b','m','p',0};
 653     static const WCHAR video_aviW[] = {'v','i','d','e','o','/','a','v','i',0};
 654     static const WCHAR video_mpegW[] = {'v','i','d','e','o','/','m','p','e','g',0};
 655     static const WCHAR app_postscriptW[] =
 656         {'a','p','p','l','i','c','a','t','i','o','n','/','p','o','s','t','s','c','r','i','p','t',0};
 657     static const WCHAR app_pdfW[] = {'a','p','p','l','i','c','a','t','i','o','n','/','p','d','f',0};
 658     static const WCHAR app_xzipW[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 659         'x','-','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 660     static const WCHAR app_xgzipW[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 661         'x','-','g','z','i','p','-','c','o','m','p','r','e','s','s','e','d',0};
 662     static const WCHAR app_javaW[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 663         'j','a','v','a',0};
 664     static const WCHAR app_xmsdownloadW[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 665         'x','-','m','s','d','o','w','n','l','o','a','d',0};
 666     static const WCHAR text_plainW[] = {'t','e','x','t','/','p','l','a','i','n','\0'};
 667     static const WCHAR app_octetstreamW[] = {'a','p','p','l','i','c','a','t','i','o','n','/',
 668         'o','c','t','e','t','-','s','t','r','e','a','m','\0'};
 669
 670     static const struct {
 671         LPCWSTR mime;
 672         BOOL (*filter)(const BYTE *,DWORD);
 673     } mime_filters[] = {
 674         {text_htmlW,       text_html_filter},
 675         {text_richtextW,   text_richtext_filter},
 676      /* {audio_xaiffW,     audio_xaiff_filter}, */
 677         {audio_basicW,     audio_basic_filter},
 678         {audio_wavW,       audio_wav_filter},
 679         {image_gifW,       image_gif_filter},
 680         {image_pjpegW,     image_pjpeg_filter},
 681         {image_tiffW,      image_tiff_filter},
 682         {image_xpngW,      image_xpng_filter},
 683      /* {image_xbitmapW,   image_xbitmap_filter}, */
 684         {image_bmpW,       image_bmp_filter},
 685      /* {image_xjgW,       image_xjg_filter}, */
 686      /* {image_xemfW,      image_xemf_filter}, */
 687      /* {image_xwmfW,      image_xwmf_filter}, */
 688         {video_aviW,       video_avi_filter},
 689         {video_mpegW,      video_mpeg_filter},
 690         {app_postscriptW,  application_postscript_filter},
 691      /* {app_base64W,      application_base64_filter}, */
 692      /* {app_macbinhex40W, application_macbinhex40_filter}, */
 693         {app_pdfW,         application_pdf_filter},
 694      /* {app_zcompressedW, application_xcompressed_filter}, */
 695         {app_xzipW,        application_xzip_filter},
 696         {app_xgzipW,       application_xgzip_filter},
 697         {app_javaW,        application_java_filter},
 698         {app_xmsdownloadW, application_xmsdownload},
 699         {text_plainW,      text_plain_filter},
 700         {app_octetstreamW, application_octet_stream_filter}
 701     };
 702
 703     if(!buf || !size) {
 704         if(!proposed_mime)
 705             return E_FAIL;
 706
 707         len = strlenW(proposed_mime)+1;
 708         *ret_mime = CoTaskMemAlloc(len*sizeof(WCHAR));
 709         if(!*ret_mime)
 710             return E_OUTOFMEMORY;
 711
 712         memcpy(*ret_mime, proposed_mime, len*sizeof(WCHAR));
 713         return S_OK;
 714     }
 715
 716     if(proposed_mime && strcmpW(proposed_mime, app_octetstreamW)) {
 717         for(i=0; i < sizeof(mime_filters)/sizeof(*mime_filters); i++) {
 718             if(!strcmpW(proposed_mime, mime_filters[i].mime))
 719                 break;
 720         }
 721
 722         if(i == sizeof(mime_filters)/sizeof(*mime_filters) || mime_filters[i].filter(buf, size)) {
 723             len = strlenW(proposed_mime)+1;
 724             *ret_mime = CoTaskMemAlloc(len*sizeof(WCHAR));
 725             if(!*ret_mime)
 726                 return E_OUTOFMEMORY;
 727
 728             memcpy(*ret_mime, proposed_mime, len*sizeof(WCHAR));
 729             return S_OK;
 730         }
 731     }
 732
 733     i=0;
 734     while(!ret) {
 735         if(mime_filters[i].filter(buf, size))
 736             ret = mime_filters[i].mime;
 737         i++;
 738     }
 739
 740     TRACE("found %s for %s\n", debugstr_w(ret), debugstr_an((const char*)buf, min(32, size)));
 741
 742     if(proposed_mime) {
 743         if(i == sizeof(mime_filters)/sizeof(*mime_filters))
 744             ret = proposed_mime;
 745
 746         /* text/html is a special case */
 747         if(!strcmpW(proposed_mime, text_htmlW) && !strcmpW(ret, text_plainW))
 748             ret = text_htmlW;
 749     }
 750
 751     len = strlenW(ret)+1;
 752     *ret_mime = CoTaskMemAlloc(len*sizeof(WCHAR));
 753     if(!*ret_mime)
 754         return E_OUTOFMEMORY;
 755
 756     memcpy(*ret_mime, ret, len*sizeof(WCHAR));
 757     return S_OK;
 758 }
 759
 760 /***********************************************************************
 761  *           FindMimeFromData (URLMON.@)
 762  *
 763  * Determines the Multipurpose Internet Mail Extensions (MIME) type from the data provided.
 764  */
 765 HRESULT WINAPI FindMimeFromData(LPBC pBC, LPCWSTR pwzUrl, LPVOID pBuffer,
 766         DWORD cbSize, LPCWSTR pwzMimeProposed, DWORD dwMimeFlags,
 767         LPWSTR* ppwzMimeOut, DWORD dwReserved)
 768 {
 769     TRACE("(%p,%s,%p,%d,%s,0x%x,%p,0x%x)\n", pBC, debugstr_w(pwzUrl), pBuffer, cbSize,
 770             debugstr_w(pwzMimeProposed), dwMimeFlags, ppwzMimeOut, dwReserved);
 771
 772     if(dwMimeFlags)
 773         WARN("dwMimeFlags=%08x\n", dwMimeFlags);
 774     if(dwReserved)
 775         WARN("dwReserved=%d\n", dwReserved);
 776
 777     /* pBC seams to not be used */
 778
 779     if(!ppwzMimeOut || (!pwzUrl && !pBuffer))
 780         return E_INVALIDARG;
 781
 782     if(pwzMimeProposed || pBuffer)
 783         return find_mime_from_buffer(pBuffer, cbSize, pwzMimeProposed, ppwzMimeOut);
 784
 785     if(pwzUrl) {
 786         HKEY hkey;
 787         DWORD res, size;
 788         LPCWSTR ptr;
 789         WCHAR mime[64];
 790
 791         static const WCHAR wszContentType[] =
 792                 {'C','o','n','t','e','n','t',' ','T','y','p','e','\0'};
 793
 794         ptr = strrchrW(pwzUrl, '.');
 795         if(!ptr)
 796             return E_FAIL;
 797
 798         res = RegOpenKeyW(HKEY_CLASSES_ROOT, ptr, &hkey);
 799         if(res != ERROR_SUCCESS)
 800             return HRESULT_FROM_WIN32(res);
 801
 802         size = sizeof(mime);
 803         res = RegQueryValueExW(hkey, wszContentType, NULL, NULL, (LPBYTE)mime, &size);
 804         RegCloseKey(hkey);
 805         if(res != ERROR_SUCCESS)
 806             return HRESULT_FROM_WIN32(res);
 807
 808         *ppwzMimeOut = CoTaskMemAlloc(size);
 809         memcpy(*ppwzMimeOut, mime, size);
 810         return S_OK;
 811     }
 812
 813     return E_FAIL;
 814 }
 815
 816 /***********************************************************************
 817  *           GetClassFileOrMime (URLMON.@)
 818  *
 819  * Determines the class ID from the bind context, file name or MIME type.
 820  */
 821 HRESULT WINAPI GetClassFileOrMime(LPBC pBC, LPCWSTR pszFilename,
 822         LPVOID pBuffer, DWORD cbBuffer, LPCWSTR pszMimeType, DWORD dwReserved,
 823         CLSID *pclsid)
 824 {
 825     FIXME("(%p, %s, %p, %d, %p, 0x%08x, %p): stub\n", pBC,
 826         debugstr_w(pszFilename), pBuffer, cbBuffer, debugstr_w(pszMimeType),
 827         dwReserved, pclsid);
 828     return E_NOTIMPL;
 829 }
 830
 831 /***********************************************************************
 832  * Extract (URLMON.@)
 833  */
 834 HRESULT WINAPI Extract(void *dest, LPCSTR szCabName)
 835 {
 836     HRESULT (WINAPI *pExtract)(void *, LPCSTR);
 837
 838     if (!hCabinet)
 839         hCabinet = LoadLibraryA("cabinet.dll");
 840
 841     if (!hCabinet) return HRESULT_FROM_WIN32(GetLastError());
 842     pExtract = (void *)GetProcAddress(hCabinet, "Extract");
 843     if (!pExtract) return HRESULT_FROM_WIN32(GetLastError());
 844
 845     return pExtract(dest, szCabName);
 846 }
 847
 848 /***********************************************************************
 849  *           IsLoggingEnabledA (URLMON.@)
 850  */
 851 BOOL WINAPI IsLoggingEnabledA(LPCSTR url)
 852 {
 853     FIXME("(%s)\n", debugstr_a(url));
 854     return FALSE;
 855 }
 856
 857 /***********************************************************************
 858  *           IsLoggingEnabledW (URLMON.@)
 859  */
 860 BOOL WINAPI IsLoggingEnabledW(LPCWSTR url)
 861 {
 862     FIXME("(%s)\n", debugstr_w(url));
 863     return FALSE;
 864 }