git.oblomov.eu Git - wine/blob - dlls/urlmon/http.c

   1 /*
   2  * Copyright 2005 Jacek Caban
   3  * Copyright 2007 Misha Koshelev
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 /*
  21  * TODO:
  22  * - Handle redirects as native.
  23  */
  24
  25 #include <stdarg.h>
  26
  27 #define COBJMACROS
  28
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winuser.h"
  32 #include "ole2.h"
  33 #include "urlmon.h"
  34 #include "wininet.h"
  35 #include "urlmon_main.h"
  36
  37 #include "wine/debug.h"
  38 #include "wine/unicode.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(urlmon);
  41
  42 /* Flags are needed for, among other things, return HRESULTs from the Read function
  43  * to conform to native. For example, Read returns:
  44  *
  45  * 1. E_PENDING if called before the request has completed,
  46  *        (flags = 0)
  47  * 2. S_FALSE after all data has been read and S_OK has been reported,
  48  *        (flags = FLAG_REQUEST_COMPLETE | FLAG_ALL_DATA_READ | FLAG_RESULT_REPORTED)
  49  * 3. INET_E_DATA_NOT_AVAILABLE if InternetQueryDataAvailable fails. The first time
  50  *    this occurs, INET_E_DATA_NOT_AVAILABLE will also be reported to the sink,
  51  *        (flags = FLAG_REQUEST_COMPLETE)
  52  *    but upon subsequent calls to Read no reporting will take place, yet
  53  *    InternetQueryDataAvailable will still be called, and, on failure,
  54  *    INET_E_DATA_NOT_AVAILABLE will still be returned.
  55  *        (flags = FLAG_REQUEST_COMPLETE | FLAG_RESULT_REPORTED)
  56  *
  57  * FLAG_FIRST_DATA_REPORTED and FLAG_LAST_DATA_REPORTED are needed for proper
  58  * ReportData reporting. For example, if OnResponse returns S_OK, Continue will
  59  * report BSCF_FIRSTDATANOTIFICATION, and when all data has been read Read will
  60  * report BSCF_INTERMEDIATEDATANOTIFICATION|BSCF_LASTDATANOTIFICATION. However,
  61  * if OnResponse does not return S_OK, Continue will not report data, and Read
  62  * will report BSCF_FIRSTDATANOTIFICATION|BSCF_LASTDATANOTIFICATION when all
  63  * data has been read.
  64  */
  65 #define FLAG_REQUEST_COMPLETE 0x1
  66 #define FLAG_FIRST_CONTINUE_COMPLETE 0x2
  67 #define FLAG_FIRST_DATA_REPORTED 0x4
  68 #define FLAG_ALL_DATA_READ 0x8
  69 #define FLAG_LAST_DATA_REPORTED 0x10
  70 #define FLAG_RESULT_REPORTED 0x20
  71
  72 typedef struct {
  73     const IInternetProtocolVtbl *lpInternetProtocolVtbl;
  74     const IInternetPriorityVtbl *lpInternetPriorityVtbl;
  75
  76     DWORD flags, grfBINDF;
  77     IInternetProtocolSink *protocol_sink;
  78     IHttpNegotiate *http_negotiate;
  79     HINTERNET internet, connect, request;
  80     HANDLE lock;
  81     ULONG current_position, content_length, available_bytes;
  82     LONG priority;
  83
  84     LONG ref;
  85 } HttpProtocol;
  86
  87 /*
  88  * Helpers
  89  */
  90
  91 static void HTTPPROTOCOL_ReportResult(HttpProtocol *This, HRESULT hres)
  92 {
  93     if (!(This->flags & FLAG_RESULT_REPORTED) &&
  94         This->protocol_sink)
  95     {
  96         This->flags |= FLAG_RESULT_REPORTED;
  97         IInternetProtocolSink_ReportResult(This->protocol_sink, hres, 0, NULL);
  98     }
  99 }
 100
 101 static void HTTPPROTOCOL_ReportData(HttpProtocol *This)
 102 {
 103     DWORD bscf;
 104     if (!(This->flags & FLAG_LAST_DATA_REPORTED) &&
 105         This->protocol_sink)
 106     {
 107         if (This->flags & FLAG_FIRST_DATA_REPORTED)
 108         {
 109             bscf = BSCF_INTERMEDIATEDATANOTIFICATION;
 110         }
 111         else
 112         {
 113             This->flags |= FLAG_FIRST_DATA_REPORTED;
 114             bscf = BSCF_FIRSTDATANOTIFICATION;
 115         }
 116         if (This->flags & FLAG_ALL_DATA_READ &&
 117             !(This->flags & FLAG_LAST_DATA_REPORTED))
 118         {
 119             This->flags |= FLAG_LAST_DATA_REPORTED;
 120             bscf |= BSCF_LASTDATANOTIFICATION;
 121         }
 122         IInternetProtocolSink_ReportData(This->protocol_sink, bscf,
 123                                          This->current_position+This->available_bytes,
 124                                          This->content_length);
 125     }
 126 }
 127
 128 static void HTTPPROTOCOL_AllDataRead(HttpProtocol *This)
 129 {
 130     if (!(This->flags & FLAG_ALL_DATA_READ))
 131         This->flags |= FLAG_ALL_DATA_READ;
 132     HTTPPROTOCOL_ReportData(This);
 133     HTTPPROTOCOL_ReportResult(This, S_OK);
 134 }
 135
 136 static void HTTPPROTOCOL_Close(HttpProtocol *This)
 137 {
 138     if (This->protocol_sink)
 139     {
 140         IInternetProtocolSink_Release(This->protocol_sink);
 141         This->protocol_sink = 0;
 142     }
 143     if (This->http_negotiate)
 144     {
 145         IHttpNegotiate_Release(This->http_negotiate);
 146         This->http_negotiate = 0;
 147     }
 148     if (This->request)
 149     {
 150         InternetCloseHandle(This->request);
 151         This->request = 0;
 152     }
 153     if (This->connect)
 154     {
 155         InternetCloseHandle(This->connect);
 156         This->connect = 0;
 157     }
 158     if (This->internet)
 159     {
 160         InternetCloseHandle(This->internet);
 161         This->internet = 0;
 162     }
 163     This->flags = 0;
 164 }
 165
 166 static void CALLBACK HTTPPROTOCOL_InternetStatusCallback(
 167     HINTERNET hInternet, DWORD_PTR dwContext, DWORD dwInternetStatus,
 168     LPVOID lpvStatusInformation, DWORD dwStatusInformationLength)
 169 {
 170     HttpProtocol *This = (HttpProtocol *)dwContext;
 171     PROTOCOLDATA data;
 172     ULONG ulStatusCode;
 173
 174     switch (dwInternetStatus)
 175     {
 176     case INTERNET_STATUS_RESOLVING_NAME:
 177         ulStatusCode = BINDSTATUS_FINDINGRESOURCE;
 178         break;
 179     case INTERNET_STATUS_CONNECTING_TO_SERVER:
 180         ulStatusCode = BINDSTATUS_CONNECTING;
 181         break;
 182     case INTERNET_STATUS_SENDING_REQUEST:
 183         ulStatusCode = BINDSTATUS_SENDINGREQUEST;
 184         break;
 185     case INTERNET_STATUS_REQUEST_COMPLETE:
 186         This->flags |= FLAG_REQUEST_COMPLETE;
 187         /* PROTOCOLDATA same as native */
 188         memset(&data, 0, sizeof(data));
 189         data.dwState = 0xf1000000;
 190         if (This->flags & FLAG_FIRST_CONTINUE_COMPLETE)
 191             data.pData = (LPVOID)BINDSTATUS_ENDDOWNLOADCOMPONENTS;
 192         else
 193             data.pData = (LPVOID)BINDSTATUS_DOWNLOADINGDATA;
 194         if (This->grfBINDF & BINDF_FROMURLMON)
 195             IInternetProtocolSink_Switch(This->protocol_sink, &data);
 196         else
 197             IInternetProtocol_Continue((IInternetProtocol *)This, &data);
 198         return;
 199     default:
 200         WARN("Unhandled Internet status callback %d\n", dwInternetStatus);
 201         return;
 202     }
 203
 204     IInternetProtocolSink_ReportProgress(This->protocol_sink, ulStatusCode, (LPWSTR)lpvStatusInformation);
 205 }
 206
 207 static inline LPWSTR strndupW(LPWSTR string, int len)
 208 {
 209     LPWSTR ret = NULL;
 210     if (string &&
 211         (ret = HeapAlloc(GetProcessHeap(), 0, (len+1)*sizeof(WCHAR))) != NULL)
 212     {
 213         memcpy(ret, string, len*sizeof(WCHAR));
 214         ret[len] = 0;
 215     }
 216     return ret;
 217 }
 218
 219 /*
 220  * Interface implementations
 221  */
 222
 223 #define PROTOCOL(x)  ((IInternetProtocol*)  &(x)->lpInternetProtocolVtbl)
 224 #define PRIORITY(x)  ((IInternetPriority*)  &(x)->lpInternetPriorityVtbl)
 225
 226 #define PROTOCOL_THIS(iface) DEFINE_THIS(HttpProtocol, InternetProtocol, iface)
 227
 228 static HRESULT WINAPI HttpProtocol_QueryInterface(IInternetProtocol *iface, REFIID riid, void **ppv)
 229 {
 230     HttpProtocol *This = PROTOCOL_THIS(iface);
 231
 232     *ppv = NULL;
 233     if(IsEqualGUID(&IID_IUnknown, riid)) {
 234         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 235         *ppv = PROTOCOL(This);
 236     }else if(IsEqualGUID(&IID_IInternetProtocolRoot, riid)) {
 237         TRACE("(%p)->(IID_IInternetProtocolRoot %p)\n", This, ppv);
 238         *ppv = PROTOCOL(This);
 239     }else if(IsEqualGUID(&IID_IInternetProtocol, riid)) {
 240         TRACE("(%p)->(IID_IInternetProtocol %p)\n", This, ppv);
 241         *ppv = PROTOCOL(This);
 242     }else if(IsEqualGUID(&IID_IInternetPriority, riid)) {
 243         TRACE("(%p)->(IID_IInternetPriority %p)\n", This, ppv);
 244         *ppv = PRIORITY(This);
 245     }
 246
 247     if(*ppv) {
 248         IInternetProtocol_AddRef(iface);
 249         return S_OK;
 250     }
 251
 252     WARN("not supported interface %s\n", debugstr_guid(riid));
 253     return E_NOINTERFACE;
 254 }
 255
 256 static ULONG WINAPI HttpProtocol_AddRef(IInternetProtocol *iface)
 257 {
 258     HttpProtocol *This = PROTOCOL_THIS(iface);
 259     LONG ref = InterlockedIncrement(&This->ref);
 260     TRACE("(%p) ref=%d\n", This, ref);
 261     return ref;
 262 }
 263
 264 static ULONG WINAPI HttpProtocol_Release(IInternetProtocol *iface)
 265 {
 266     HttpProtocol *This = PROTOCOL_THIS(iface);
 267     LONG ref = InterlockedDecrement(&This->ref);
 268
 269     TRACE("(%p) ref=%d\n", This, ref);
 270
 271     if(!ref) {
 272         HTTPPROTOCOL_Close(This);
 273         HeapFree(GetProcessHeap(), 0, This);
 274
 275         URLMON_UnlockModule();
 276     }
 277
 278     return ref;
 279 }
 280
 281 static HRESULT WINAPI HttpProtocol_Start(IInternetProtocol *iface, LPCWSTR szUrl,
 282         IInternetProtocolSink *pOIProtSink, IInternetBindInfo *pOIBindInfo,
 283         DWORD grfPI, DWORD dwReserved)
 284 {
 285     HttpProtocol *This = PROTOCOL_THIS(iface);
 286     URL_COMPONENTSW url;
 287     BINDINFO bindinfo;
 288     DWORD len = 0, request_flags = INTERNET_FLAG_KEEP_CONNECTION;
 289     ULONG num = 0;
 290     IServiceProvider *service_provider = 0;
 291     IHttpNegotiate2 *http_negotiate2 = 0;
 292     LPWSTR host = 0, path = 0, user = 0, pass = 0, addl_header = 0,
 293         full_header = 0, post_cookie = 0, optional = 0;
 294     BYTE security_id[512];
 295     LPOLESTR user_agent, accept_mimes[257];
 296     HRESULT hres;
 297
 298     static const WCHAR wszHttp[] = {'h','t','t','p',':'};
 299     static const WCHAR wszHeaders[] = {'A','c','c','e','p','t','-','E','n','c','o','d','i','n','g',
 300                                        ':',' ','g','z','i','p',',',' ','d','e','f','l','a','t','e',0};
 301     static const WCHAR wszBindVerb[BINDVERB_CUSTOM][5] =
 302         {{'G','E','T',0},
 303          {'P','O','S','T',0},
 304          {'P','U','T',0}};
 305
 306     TRACE("(%p)->(%s %p %p %08x %d)\n", This, debugstr_w(szUrl), pOIProtSink,
 307             pOIBindInfo, grfPI, dwReserved);
 308
 309     memset(&bindinfo, 0, sizeof(bindinfo));
 310     bindinfo.cbSize = sizeof(BINDINFO);
 311     hres = IInternetBindInfo_GetBindInfo(pOIBindInfo, &This->grfBINDF, &bindinfo);
 312     if (hres != S_OK)
 313     {
 314         WARN("GetBindInfo failed: %08x\n", hres);
 315         goto done;
 316     }
 317
 318     if (lstrlenW(szUrl) < sizeof(wszHttp)/sizeof(WCHAR)
 319         || memcmp(szUrl, wszHttp, sizeof(wszHttp)))
 320     {
 321         hres = MK_E_SYNTAX;
 322         goto done;
 323     }
 324
 325     memset(&url, 0, sizeof(url));
 326     url.dwStructSize = sizeof(url);
 327     url.dwSchemeLength = url.dwHostNameLength = url.dwUrlPathLength = url.dwUserNameLength =
 328         url.dwPasswordLength = 1;
 329     if (!InternetCrackUrlW(szUrl, 0, 0, &url))
 330     {
 331         hres = MK_E_SYNTAX;
 332         goto done;
 333     }
 334     host = strndupW(url.lpszHostName, url.dwHostNameLength);
 335     path = strndupW(url.lpszUrlPath, url.dwUrlPathLength);
 336     user = strndupW(url.lpszUserName, url.dwUserNameLength);
 337     pass = strndupW(url.lpszPassword, url.dwPasswordLength);
 338     if (!url.nPort)
 339         url.nPort = INTERNET_DEFAULT_HTTP_PORT;
 340
 341     if(!(This->grfBINDF & BINDF_FROMURLMON))
 342         IInternetProtocolSink_ReportProgress(pOIProtSink, BINDSTATUS_DIRECTBIND, NULL);
 343
 344     hres = IInternetBindInfo_GetBindString(pOIBindInfo, BINDSTRING_USER_AGENT, &user_agent,
 345                                            1, &num);
 346     if (hres != S_OK || !num)
 347     {
 348         CHAR null_char = 0;
 349         LPSTR user_agenta = NULL;
 350         len = 0;
 351         if ((hres = ObtainUserAgentString(0, &null_char, &len)) != E_OUTOFMEMORY)
 352         {
 353             WARN("ObtainUserAgentString failed: %08x\n", hres);
 354         }
 355         else if (!(user_agenta = HeapAlloc(GetProcessHeap(), 0, len*sizeof(CHAR))))
 356         {
 357             WARN("Out of memory\n");
 358         }
 359         else if ((hres = ObtainUserAgentString(0, user_agenta, &len)) != S_OK)
 360         {
 361             WARN("ObtainUserAgentString failed: %08x\n", hres);
 362         }
 363         else
 364         {
 365             if (!(user_agent = CoTaskMemAlloc((len)*sizeof(WCHAR))))
 366                 WARN("Out of memory\n");
 367             else
 368                 MultiByteToWideChar(CP_ACP, 0, user_agenta, -1, user_agent, len*sizeof(WCHAR));
 369         }
 370         HeapFree(GetProcessHeap(), 0, user_agenta);
 371     }
 372
 373     This->internet = InternetOpenW(user_agent, 0, NULL, NULL, INTERNET_FLAG_ASYNC);
 374     if (!This->internet)
 375     {
 376         WARN("InternetOpen failed: %d\n", GetLastError());
 377         hres = INET_E_NO_SESSION;
 378         goto done;
 379     }
 380
 381     IInternetProtocolSink_AddRef(pOIProtSink);
 382     This->protocol_sink = pOIProtSink;
 383
 384     /* Native does not check for success of next call, so we won't either */
 385     InternetSetStatusCallbackW(This->internet, HTTPPROTOCOL_InternetStatusCallback);
 386
 387     This->connect = InternetConnectW(This->internet, host, url.nPort, user,
 388                                      pass, INTERNET_SERVICE_HTTP, 0, (DWORD)This);
 389     if (!This->connect)
 390     {
 391         WARN("InternetConnect failed: %d\n", GetLastError());
 392         hres = INET_E_CANNOT_CONNECT;
 393         goto done;
 394     }
 395
 396     num = sizeof(accept_mimes)/sizeof(accept_mimes[0])-1;
 397     hres = IInternetBindInfo_GetBindString(pOIBindInfo, BINDSTRING_ACCEPT_MIMES,
 398                                            accept_mimes,
 399                                            num, &num);
 400     if (hres != S_OK)
 401     {
 402         WARN("GetBindString BINDSTRING_ACCEPT_MIMES failed: %08x\n", hres);
 403         hres = INET_E_NO_VALID_MEDIA;
 404         goto done;
 405     }
 406     accept_mimes[num] = 0;
 407
 408     if (This->grfBINDF & BINDF_NOWRITECACHE)
 409         request_flags |= INTERNET_FLAG_NO_CACHE_WRITE;
 410     This->request = HttpOpenRequestW(This->connect, bindinfo.dwBindVerb < BINDVERB_CUSTOM ?
 411                                      wszBindVerb[bindinfo.dwBindVerb] : bindinfo.szCustomVerb,
 412                                      path, NULL, NULL, (LPCWSTR *)accept_mimes,
 413                                      request_flags, (DWORD)This);
 414     if (!This->request)
 415     {
 416         WARN("HttpOpenRequest failed: %d\n", GetLastError());
 417         hres = INET_E_RESOURCE_NOT_FOUND;
 418         goto done;
 419     }
 420
 421     hres = IInternetProtocolSink_QueryInterface(pOIProtSink, &IID_IServiceProvider,
 422                                                 (void **)&service_provider);
 423     if (hres != S_OK)
 424     {
 425         WARN("IInternetProtocolSink_QueryInterface IID_IServiceProvider failed: %08x\n", hres);
 426         goto done;
 427     }
 428
 429     hres = IServiceProvider_QueryService(service_provider, &IID_IHttpNegotiate,
 430                                          &IID_IHttpNegotiate, (void **)&This->http_negotiate);
 431     if (hres != S_OK)
 432     {
 433         WARN("IServiceProvider_QueryService IID_IHttpNegotiate failed: %08x\n", hres);
 434         goto done;
 435     }
 436
 437     hres = IHttpNegotiate_BeginningTransaction(This->http_negotiate, szUrl, wszHeaders,
 438                                                0, &addl_header);
 439     if (hres != S_OK)
 440     {
 441         WARN("IHttpNegotiate_BeginningTransaction failed: %08x\n", hres);
 442         goto done;
 443     }
 444     else if (addl_header == NULL)
 445     {
 446         full_header = (LPWSTR)wszHeaders;
 447     }
 448     else
 449     {
 450         full_header = HeapAlloc(GetProcessHeap(), 0,
 451                                 (lstrlenW(addl_header)+sizeof(wszHeaders))*sizeof(WCHAR));
 452         if (!full_header)
 453         {
 454             WARN("Out of memory\n");
 455             hres = E_OUTOFMEMORY;
 456             goto done;
 457         }
 458         lstrcpyW(full_header, addl_header);
 459         lstrcpyW(&full_header[lstrlenW(addl_header)], wszHeaders);
 460     }
 461
 462     hres = IServiceProvider_QueryService(service_provider, &IID_IHttpNegotiate2,
 463                                          &IID_IHttpNegotiate2, (void **)&http_negotiate2);
 464     if (hres != S_OK)
 465     {
 466         WARN("IServiceProvider_QueryService IID_IHttpNegotiate2 failed: %08x\n", hres);
 467         /* No goto done as per native */
 468     }
 469     else
 470     {
 471         len = sizeof(security_id)/sizeof(security_id[0]);
 472         hres = IHttpNegotiate2_GetRootSecurityId(http_negotiate2, security_id, &len, 0);
 473         if (hres != S_OK)
 474         {
 475             WARN("IHttpNegotiate2_GetRootSecurityId failed: %08x\n", hres);
 476             /* No goto done as per native */
 477         }
 478     }
 479
 480     /* FIXME: Handle security_id. Native calls undocumented function IsHostInProxyBypassList. */
 481
 482     if (bindinfo.dwBindVerb == BINDVERB_POST)
 483     {
 484         num = 0;
 485         hres = IInternetBindInfo_GetBindString(pOIBindInfo, BINDSTRING_POST_COOKIE, &post_cookie,
 486                                                1, &num);
 487         if (hres == S_OK && num &&
 488             !InternetSetOptionW(This->request, INTERNET_OPTION_SECONDARY_CACHE_KEY,
 489                                 post_cookie, lstrlenW(post_cookie)))
 490         {
 491             WARN("InternetSetOption INTERNET_OPTION_SECONDARY_CACHE_KEY failed: %d\n",
 492                  GetLastError());
 493         }
 494     }
 495
 496     if (bindinfo.dwBindVerb != BINDVERB_GET)
 497     {
 498         /* Native does not use GlobalLock/GlobalUnlock, so we won't either */
 499         if (bindinfo.stgmedData.tymed != TYMED_HGLOBAL)
 500             WARN("Expected bindinfo.stgmedData.tymed to be TYMED_HGLOBAL, not %d\n",
 501                  bindinfo.stgmedData.tymed);
 502         else
 503             optional = (LPWSTR)bindinfo.stgmedData.hGlobal;
 504     }
 505     if (!HttpSendRequestW(This->request, full_header, lstrlenW(full_header),
 506                           optional,
 507                           optional ? bindinfo.cbstgmedData : 0) &&
 508         GetLastError() != ERROR_IO_PENDING)
 509     {
 510         WARN("HttpSendRequest failed: %d\n", GetLastError());
 511         hres = INET_E_DOWNLOAD_FAILURE;
 512         goto done;
 513     }
 514
 515     hres = S_OK;
 516 done:
 517     if (hres != S_OK)
 518     {
 519         IInternetProtocolSink_ReportResult(pOIProtSink, hres, 0, NULL);
 520         HTTPPROTOCOL_Close(This);
 521     }
 522
 523     CoTaskMemFree(post_cookie);
 524     if (full_header != wszHeaders)
 525         HeapFree(GetProcessHeap(), 0, full_header);
 526     CoTaskMemFree(addl_header);
 527     if (http_negotiate2)
 528         IHttpNegotiate2_Release(http_negotiate2);
 529     if (service_provider)
 530         IServiceProvider_Release(service_provider);
 531
 532     while (num<sizeof(accept_mimes)/sizeof(accept_mimes[0]) &&
 533            accept_mimes[num])
 534         CoTaskMemFree(accept_mimes[num++]);
 535     CoTaskMemFree(user_agent);
 536
 537     HeapFree(GetProcessHeap(), 0, pass);
 538     HeapFree(GetProcessHeap(), 0, user);
 539     HeapFree(GetProcessHeap(), 0, path);
 540     HeapFree(GetProcessHeap(), 0, host);
 541
 542     ReleaseBindInfo(&bindinfo);
 543
 544     return hres;
 545 }
 546
 547 static HRESULT WINAPI HttpProtocol_Continue(IInternetProtocol *iface, PROTOCOLDATA *pProtocolData)
 548 {
 549     HttpProtocol *This = PROTOCOL_THIS(iface);
 550     DWORD len = sizeof(DWORD), status_code;
 551     LPWSTR response_headers = 0, content_type = 0, content_length = 0;
 552
 553     static const WCHAR wszDefaultContentType[] =
 554         {'t','e','x','t','/','h','t','m','l',0};
 555
 556     TRACE("(%p)->(%p)\n", This, pProtocolData);
 557
 558     if (!pProtocolData)
 559     {
 560         WARN("Expected pProtocolData to be non-NULL\n");
 561         goto done;
 562     }
 563     else if (!This->request)
 564     {
 565         WARN("Expected request to be non-NULL\n");
 566         goto done;
 567     }
 568     else if (!This->http_negotiate)
 569     {
 570         WARN("Expected IHttpNegotiate pointer to be non-NULL\n");
 571         goto done;
 572     }
 573     else if (!This->protocol_sink)
 574     {
 575         WARN("Expected IInternetProtocolSink pointer to be non-NULL\n");
 576         goto done;
 577     }
 578
 579     if (pProtocolData->pData == (LPVOID)BINDSTATUS_DOWNLOADINGDATA)
 580     {
 581         if (!HttpQueryInfoW(This->request, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER,
 582                             &status_code, &len, NULL))
 583         {
 584             WARN("HttpQueryInfo failed: %d\n", GetLastError());
 585         }
 586         else
 587         {
 588             len = 0;
 589             if ((!HttpQueryInfoW(This->request, HTTP_QUERY_RAW_HEADERS_CRLF, response_headers, &len,
 590                                  NULL) &&
 591                  GetLastError() != ERROR_INSUFFICIENT_BUFFER) ||
 592                 !(response_headers = HeapAlloc(GetProcessHeap(), 0, len)) ||
 593                 !HttpQueryInfoW(This->request, HTTP_QUERY_RAW_HEADERS_CRLF, response_headers, &len,
 594                                 NULL))
 595             {
 596                 WARN("HttpQueryInfo failed: %d\n", GetLastError());
 597             }
 598             else
 599             {
 600                 HRESULT hres = IHttpNegotiate_OnResponse(This->http_negotiate, status_code,
 601                                                          response_headers, NULL, NULL);
 602                 if (hres != S_OK)
 603                 {
 604                     WARN("IHttpNegotiate_OnResponse failed: %08x\n", hres);
 605                     goto done;
 606                 }
 607             }
 608         }
 609
 610         len = 0;
 611         if ((!HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_TYPE, content_type, &len, NULL) &&
 612              GetLastError() != ERROR_INSUFFICIENT_BUFFER) ||
 613             !(content_type = HeapAlloc(GetProcessHeap(), 0, len)) ||
 614             !HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_TYPE, content_type, &len, NULL))
 615         {
 616             WARN("HttpQueryInfo failed: %d\n", GetLastError());
 617             IInternetProtocolSink_ReportProgress(This->protocol_sink,
 618                                                  (This->grfBINDF & BINDF_FROMURLMON) ?
 619                                                  BINDSTATUS_MIMETYPEAVAILABLE :
 620                                                  BINDSTATUS_RAWMIMETYPE,
 621                                                  wszDefaultContentType);
 622         }
 623         else
 624         {
 625             IInternetProtocolSink_ReportProgress(This->protocol_sink,
 626                                                  (This->grfBINDF & BINDF_FROMURLMON) ?
 627                                                  BINDSTATUS_MIMETYPEAVAILABLE :
 628                                                  BINDSTATUS_RAWMIMETYPE,
 629                                                  content_type);
 630         }
 631
 632         len = 0;
 633         if ((!HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_LENGTH, content_length, &len, NULL) &&
 634              GetLastError() != ERROR_INSUFFICIENT_BUFFER) ||
 635             !(content_length = HeapAlloc(GetProcessHeap(), 0, len)) ||
 636             !HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_LENGTH, content_length, &len, NULL))
 637         {
 638             WARN("HttpQueryInfo failed: %d\n", GetLastError());
 639             This->content_length = 0;
 640         }
 641         else
 642         {
 643             This->content_length = atoiW(content_length);
 644         }
 645
 646         This->flags |= FLAG_FIRST_CONTINUE_COMPLETE;
 647     }
 648
 649     if (pProtocolData->pData >= (LPVOID)BINDSTATUS_DOWNLOADINGDATA)
 650     {
 651         if (!InternetQueryDataAvailable(This->request, &This->available_bytes, 0, 0))
 652         {
 653             if (GetLastError() == ERROR_IO_PENDING)
 654             {
 655                 This->flags &= ~FLAG_REQUEST_COMPLETE;
 656             }
 657             else
 658             {
 659                 WARN("InternetQueryDataAvailable failed: %d\n", GetLastError());
 660                 HTTPPROTOCOL_ReportResult(This, INET_E_DATA_NOT_AVAILABLE);
 661             }
 662         }
 663         else
 664         {
 665             HTTPPROTOCOL_ReportData(This);
 666         }
 667     }
 668
 669 done:
 670     HeapFree(GetProcessHeap(), 0, response_headers);
 671     HeapFree(GetProcessHeap(), 0, content_type);
 672     HeapFree(GetProcessHeap(), 0, content_length);
 673
 674     /* Returns S_OK on native */
 675     return S_OK;
 676 }
 677
 678 static HRESULT WINAPI HttpProtocol_Abort(IInternetProtocol *iface, HRESULT hrReason,
 679         DWORD dwOptions)
 680 {
 681     HttpProtocol *This = PROTOCOL_THIS(iface);
 682     FIXME("(%p)->(%08x %08x)\n", This, hrReason, dwOptions);
 683     return E_NOTIMPL;
 684 }
 685
 686 static HRESULT WINAPI HttpProtocol_Terminate(IInternetProtocol *iface, DWORD dwOptions)
 687 {
 688     HttpProtocol *This = PROTOCOL_THIS(iface);
 689
 690     TRACE("(%p)->(%08x)\n", This, dwOptions);
 691     HTTPPROTOCOL_Close(This);
 692
 693     return S_OK;
 694 }
 695
 696 static HRESULT WINAPI HttpProtocol_Suspend(IInternetProtocol *iface)
 697 {
 698     HttpProtocol *This = PROTOCOL_THIS(iface);
 699     FIXME("(%p)\n", This);
 700     return E_NOTIMPL;
 701 }
 702
 703 static HRESULT WINAPI HttpProtocol_Resume(IInternetProtocol *iface)
 704 {
 705     HttpProtocol *This = PROTOCOL_THIS(iface);
 706     FIXME("(%p)\n", This);
 707     return E_NOTIMPL;
 708 }
 709
 710 static HRESULT WINAPI HttpProtocol_Read(IInternetProtocol *iface, void *pv,
 711         ULONG cb, ULONG *pcbRead)
 712 {
 713     HttpProtocol *This = PROTOCOL_THIS(iface);
 714     ULONG read = 0, len = 0;
 715     HRESULT hres = S_FALSE;
 716
 717     TRACE("(%p)->(%p %u %p)\n", This, pv, cb, pcbRead);
 718
 719     if (!(This->flags & FLAG_REQUEST_COMPLETE))
 720     {
 721         hres = E_PENDING;
 722     }
 723     else while (!(This->flags & FLAG_ALL_DATA_READ) &&
 724                 read < cb)
 725     {
 726         if (This->available_bytes == 0)
 727         {
 728             if (!InternetQueryDataAvailable(This->request, &This->available_bytes, 0, 0))
 729             {
 730                 if (GetLastError() == ERROR_IO_PENDING)
 731                 {
 732                     This->flags &= ~FLAG_REQUEST_COMPLETE;
 733                     hres = E_PENDING;
 734                 }
 735                 else
 736                 {
 737                     WARN("InternetQueryDataAvailable failed: %d\n", GetLastError());
 738                     hres = INET_E_DATA_NOT_AVAILABLE;
 739                     HTTPPROTOCOL_ReportResult(This, hres);
 740                 }
 741                 goto done;
 742             }
 743             else if (This->available_bytes == 0)
 744             {
 745                 HTTPPROTOCOL_AllDataRead(This);
 746             }
 747         }
 748         else
 749         {
 750             if (!InternetReadFile(This->request, ((BYTE *)pv)+read,
 751                                   This->available_bytes > cb-read ?
 752                                   cb-read : This->available_bytes, &len))
 753             {
 754                 WARN("InternetReadFile failed: %d\n", GetLastError());
 755                 hres = INET_E_DOWNLOAD_FAILURE;
 756                 HTTPPROTOCOL_ReportResult(This, hres);
 757                 goto done;
 758             }
 759             else if (len == 0)
 760             {
 761                 HTTPPROTOCOL_AllDataRead(This);
 762             }
 763             else
 764             {
 765                 read += len;
 766                 This->current_position += len;
 767                 This->available_bytes -= len;
 768             }
 769         }
 770     }
 771
 772     /* Per MSDN this should be if (read == cb), but native returns S_OK
 773      * if any bytes were read, so we will too */
 774     if (read)
 775         hres = S_OK;
 776
 777 done:
 778     if (pcbRead)
 779         *pcbRead = read;
 780
 781     return hres;
 782 }
 783
 784 static HRESULT WINAPI HttpProtocol_Seek(IInternetProtocol *iface, LARGE_INTEGER dlibMove,
 785         DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition)
 786 {
 787     HttpProtocol *This = PROTOCOL_THIS(iface);
 788     FIXME("(%p)->(%d %d %p)\n", This, dlibMove.u.LowPart, dwOrigin, plibNewPosition);
 789     return E_NOTIMPL;
 790 }
 791
 792 static HRESULT WINAPI HttpProtocol_LockRequest(IInternetProtocol *iface, DWORD dwOptions)
 793 {
 794     HttpProtocol *This = PROTOCOL_THIS(iface);
 795
 796     TRACE("(%p)->(%08x)\n", This, dwOptions);
 797
 798     if (!InternetLockRequestFile(This->request, &This->lock))
 799         WARN("InternetLockRequest failed: %d\n", GetLastError());
 800
 801     return S_OK;
 802 }
 803
 804 static HRESULT WINAPI HttpProtocol_UnlockRequest(IInternetProtocol *iface)
 805 {
 806     HttpProtocol *This = PROTOCOL_THIS(iface);
 807
 808     TRACE("(%p)\n", This);
 809
 810     if (This->lock)
 811     {
 812         if (!InternetUnlockRequestFile(This->lock))
 813             WARN("InternetUnlockRequest failed: %d\n", GetLastError());
 814         This->lock = 0;
 815     }
 816
 817     return S_OK;
 818 }
 819
 820 #undef PROTOCOL_THIS
 821
 822 #define PRIORITY_THIS(iface) DEFINE_THIS(HttpProtocol, InternetPriority, iface)
 823
 824 static HRESULT WINAPI HttpPriority_QueryInterface(IInternetPriority *iface, REFIID riid, void **ppv)
 825 {
 826     HttpProtocol *This = PRIORITY_THIS(iface);
 827     return IInternetProtocol_QueryInterface(PROTOCOL(This), riid, ppv);
 828 }
 829
 830 static ULONG WINAPI HttpPriority_AddRef(IInternetPriority *iface)
 831 {
 832     HttpProtocol *This = PRIORITY_THIS(iface);
 833     return IInternetProtocol_AddRef(PROTOCOL(This));
 834 }
 835
 836 static ULONG WINAPI HttpPriority_Release(IInternetPriority *iface)
 837 {
 838     HttpProtocol *This = PRIORITY_THIS(iface);
 839     return IInternetProtocol_Release(PROTOCOL(This));
 840 }
 841
 842 static HRESULT WINAPI HttpPriority_SetPriority(IInternetPriority *iface, LONG nPriority)
 843 {
 844     HttpProtocol *This = PRIORITY_THIS(iface);
 845
 846     TRACE("(%p)->(%d)\n", This, nPriority);
 847
 848     This->priority = nPriority;
 849     return S_OK;
 850 }
 851
 852 static HRESULT WINAPI HttpPriority_GetPriority(IInternetPriority *iface, LONG *pnPriority)
 853 {
 854     HttpProtocol *This = PRIORITY_THIS(iface);
 855
 856     TRACE("(%p)->(%p)\n", This, pnPriority);
 857
 858     *pnPriority = This->priority;
 859     return S_OK;
 860 }
 861
 862 #undef PRIORITY_THIS
 863
 864 static const IInternetPriorityVtbl HttpPriorityVtbl = {
 865     HttpPriority_QueryInterface,
 866     HttpPriority_AddRef,
 867     HttpPriority_Release,
 868     HttpPriority_SetPriority,
 869     HttpPriority_GetPriority
 870 };
 871
 872 static const IInternetProtocolVtbl HttpProtocolVtbl = {
 873     HttpProtocol_QueryInterface,
 874     HttpProtocol_AddRef,
 875     HttpProtocol_Release,
 876     HttpProtocol_Start,
 877     HttpProtocol_Continue,
 878     HttpProtocol_Abort,
 879     HttpProtocol_Terminate,
 880     HttpProtocol_Suspend,
 881     HttpProtocol_Resume,
 882     HttpProtocol_Read,
 883     HttpProtocol_Seek,
 884     HttpProtocol_LockRequest,
 885     HttpProtocol_UnlockRequest
 886 };
 887
 888 HRESULT HttpProtocol_Construct(IUnknown *pUnkOuter, LPVOID *ppobj)
 889 {
 890     HttpProtocol *ret;
 891
 892     TRACE("(%p %p)\n", pUnkOuter, ppobj);
 893
 894     URLMON_LockModule();
 895
 896     ret = HeapAlloc(GetProcessHeap(), 0, sizeof(HttpProtocol));
 897
 898     ret->lpInternetProtocolVtbl = &HttpProtocolVtbl;
 899     ret->lpInternetPriorityVtbl = &HttpPriorityVtbl;
 900     ret->flags = ret->grfBINDF = 0;
 901     ret->protocol_sink = 0;
 902     ret->http_negotiate = 0;
 903     ret->internet = ret->connect = ret->request = 0;
 904     ret->lock = 0;
 905     ret->current_position = ret->content_length = ret->available_bytes = 0;
 906     ret->priority = 0;
 907     ret->ref = 1;
 908
 909     *ppobj = PROTOCOL(ret);
 910
 911     return S_OK;
 912 }