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 "urlmon_main.h"
  26 #include "wininet.h"
  27
  28 #include "wine/debug.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(urlmon);
  31
  32 /* Flags are needed for, among other things, return HRESULTs from the Read function
  33  * to conform to native. For example, Read returns:
  34  *
  35  * 1. E_PENDING if called before the request has completed,
  36  *        (flags = 0)
  37  * 2. S_FALSE after all data has been read and S_OK has been reported,
  38  *        (flags = FLAG_REQUEST_COMPLETE | FLAG_ALL_DATA_READ | FLAG_RESULT_REPORTED)
  39  * 3. INET_E_DATA_NOT_AVAILABLE if InternetQueryDataAvailable fails. The first time
  40  *    this occurs, INET_E_DATA_NOT_AVAILABLE will also be reported to the sink,
  41  *        (flags = FLAG_REQUEST_COMPLETE)
  42  *    but upon subsequent calls to Read no reporting will take place, yet
  43  *    InternetQueryDataAvailable will still be called, and, on failure,
  44  *    INET_E_DATA_NOT_AVAILABLE will still be returned.
  45  *        (flags = FLAG_REQUEST_COMPLETE | FLAG_RESULT_REPORTED)
  46  *
  47  * FLAG_FIRST_DATA_REPORTED and FLAG_LAST_DATA_REPORTED are needed for proper
  48  * ReportData reporting. For example, if OnResponse returns S_OK, Continue will
  49  * report BSCF_FIRSTDATANOTIFICATION, and when all data has been read Read will
  50  * report BSCF_INTERMEDIATEDATANOTIFICATION|BSCF_LASTDATANOTIFICATION. However,
  51  * if OnResponse does not return S_OK, Continue will not report data, and Read
  52  * will report BSCF_FIRSTDATANOTIFICATION|BSCF_LASTDATANOTIFICATION when all
  53  * data has been read.
  54  */
  55 #define FLAG_REQUEST_COMPLETE 0x1
  56 #define FLAG_FIRST_CONTINUE_COMPLETE 0x2
  57 #define FLAG_FIRST_DATA_REPORTED 0x4
  58 #define FLAG_ALL_DATA_READ 0x8
  59 #define FLAG_LAST_DATA_REPORTED 0x10
  60 #define FLAG_RESULT_REPORTED 0x20
  61
  62 typedef struct {
  63     const IInternetProtocolVtbl *lpInternetProtocolVtbl;
  64     const IInternetPriorityVtbl *lpInternetPriorityVtbl;
  65
  66     DWORD flags, grfBINDF;
  67     BINDINFO bind_info;
  68     IInternetProtocolSink *protocol_sink;
  69     IHttpNegotiate *http_negotiate;
  70     HINTERNET internet, connect, request;
  71     LPWSTR full_header;
  72     HANDLE lock;
  73     ULONG current_position, content_length, available_bytes;
  74     LONG priority;
  75
  76     LONG ref;
  77 } HttpProtocol;
  78
  79 /* Default headers from native */
  80 static const WCHAR wszHeaders[] = {'A','c','c','e','p','t','-','E','n','c','o','d','i','n','g',
  81                                    ':',' ','g','z','i','p',',',' ','d','e','f','l','a','t','e',0};
  82
  83 /*
  84  * Helpers
  85  */
  86
  87 static void HTTPPROTOCOL_ReportResult(HttpProtocol *This, HRESULT hres)
  88 {
  89     if (!(This->flags & FLAG_RESULT_REPORTED) &&
  90         This->protocol_sink)
  91     {
  92         This->flags |= FLAG_RESULT_REPORTED;
  93         IInternetProtocolSink_ReportResult(This->protocol_sink, hres, 0, NULL);
  94     }
  95 }
  96
  97 static void HTTPPROTOCOL_ReportData(HttpProtocol *This)
  98 {
  99     DWORD bscf;
 100     if (!(This->flags & FLAG_LAST_DATA_REPORTED) &&
 101         This->protocol_sink)
 102     {
 103         if (This->flags & FLAG_FIRST_DATA_REPORTED)
 104         {
 105             bscf = BSCF_INTERMEDIATEDATANOTIFICATION;
 106         }
 107         else
 108         {
 109             This->flags |= FLAG_FIRST_DATA_REPORTED;
 110             bscf = BSCF_FIRSTDATANOTIFICATION;
 111         }
 112         if (This->flags & FLAG_ALL_DATA_READ &&
 113             !(This->flags & FLAG_LAST_DATA_REPORTED))
 114         {
 115             This->flags |= FLAG_LAST_DATA_REPORTED;
 116             bscf |= BSCF_LASTDATANOTIFICATION;
 117         }
 118         IInternetProtocolSink_ReportData(This->protocol_sink, bscf,
 119                                          This->current_position+This->available_bytes,
 120                                          This->content_length);
 121     }
 122 }
 123
 124 static void HTTPPROTOCOL_AllDataRead(HttpProtocol *This)
 125 {
 126     if (!(This->flags & FLAG_ALL_DATA_READ))
 127         This->flags |= FLAG_ALL_DATA_READ;
 128     HTTPPROTOCOL_ReportData(This);
 129     HTTPPROTOCOL_ReportResult(This, S_OK);
 130 }
 131
 132 static void HTTPPROTOCOL_Close(HttpProtocol *This)
 133 {
 134     if (This->http_negotiate)
 135     {
 136         IHttpNegotiate_Release(This->http_negotiate);
 137         This->http_negotiate = 0;
 138     }
 139     if (This->request)
 140         InternetCloseHandle(This->request);
 141     if (This->connect)
 142         InternetCloseHandle(This->connect);
 143     if (This->internet)
 144     {
 145         InternetCloseHandle(This->internet);
 146         This->internet = 0;
 147     }
 148     if (This->full_header)
 149     {
 150         if (This->full_header != wszHeaders)
 151             heap_free(This->full_header);
 152         This->full_header = 0;
 153     }
 154     This->flags = 0;
 155 }
 156
 157 static void CALLBACK HTTPPROTOCOL_InternetStatusCallback(
 158     HINTERNET hInternet, DWORD_PTR dwContext, DWORD dwInternetStatus,
 159     LPVOID lpvStatusInformation, DWORD dwStatusInformationLength)
 160 {
 161     HttpProtocol *This = (HttpProtocol *)dwContext;
 162     PROTOCOLDATA data;
 163     ULONG ulStatusCode;
 164
 165     switch (dwInternetStatus)
 166     {
 167     case INTERNET_STATUS_RESOLVING_NAME:
 168         ulStatusCode = BINDSTATUS_FINDINGRESOURCE;
 169         break;
 170     case INTERNET_STATUS_CONNECTING_TO_SERVER:
 171         ulStatusCode = BINDSTATUS_CONNECTING;
 172         break;
 173     case INTERNET_STATUS_SENDING_REQUEST:
 174         ulStatusCode = BINDSTATUS_SENDINGREQUEST;
 175         break;
 176     case INTERNET_STATUS_REQUEST_COMPLETE:
 177         This->flags |= FLAG_REQUEST_COMPLETE;
 178         /* PROTOCOLDATA same as native */
 179         memset(&data, 0, sizeof(data));
 180         data.dwState = 0xf1000000;
 181         if (This->flags & FLAG_FIRST_CONTINUE_COMPLETE)
 182             data.pData = (LPVOID)BINDSTATUS_ENDDOWNLOADCOMPONENTS;
 183         else
 184             data.pData = (LPVOID)BINDSTATUS_DOWNLOADINGDATA;
 185         if (This->grfBINDF & BINDF_FROMURLMON)
 186             IInternetProtocolSink_Switch(This->protocol_sink, &data);
 187         else
 188             IInternetProtocol_Continue((IInternetProtocol *)This, &data);
 189         return;
 190     case INTERNET_STATUS_HANDLE_CREATED:
 191         IInternetProtocol_AddRef((IInternetProtocol *)This);
 192         return;
 193     case INTERNET_STATUS_HANDLE_CLOSING:
 194         if (*(HINTERNET *)lpvStatusInformation == This->connect)
 195         {
 196             This->connect = 0;
 197         }
 198         else if (*(HINTERNET *)lpvStatusInformation == This->request)
 199         {
 200             This->request = 0;
 201             if (This->protocol_sink)
 202             {
 203                 IInternetProtocolSink_Release(This->protocol_sink);
 204                 This->protocol_sink = 0;
 205             }
 206             if (This->bind_info.cbSize)
 207             {
 208                 ReleaseBindInfo(&This->bind_info);
 209                 memset(&This->bind_info, 0, sizeof(This->bind_info));
 210             }
 211         }
 212         IInternetProtocol_Release((IInternetProtocol *)This);
 213         return;
 214     default:
 215         WARN("Unhandled Internet status callback %d\n", dwInternetStatus);
 216         return;
 217     }
 218
 219     IInternetProtocolSink_ReportProgress(This->protocol_sink, ulStatusCode, (LPWSTR)lpvStatusInformation);
 220 }
 221
 222 static inline LPWSTR strndupW(LPCWSTR string, int len)
 223 {
 224     LPWSTR ret = NULL;
 225     if (string &&
 226         (ret = heap_alloc((len+1)*sizeof(WCHAR))) != NULL)
 227     {
 228         memcpy(ret, string, len*sizeof(WCHAR));
 229         ret[len] = 0;
 230     }
 231     return ret;
 232 }
 233
 234 /*
 235  * Interface implementations
 236  */
 237
 238 #define PROTOCOL(x)  ((IInternetProtocol*)  &(x)->lpInternetProtocolVtbl)
 239 #define PRIORITY(x)  ((IInternetPriority*)  &(x)->lpInternetPriorityVtbl)
 240
 241 #define PROTOCOL_THIS(iface) DEFINE_THIS(HttpProtocol, InternetProtocol, iface)
 242
 243 static HRESULT WINAPI HttpProtocol_QueryInterface(IInternetProtocol *iface, REFIID riid, void **ppv)
 244 {
 245     HttpProtocol *This = PROTOCOL_THIS(iface);
 246
 247     *ppv = NULL;
 248     if(IsEqualGUID(&IID_IUnknown, riid)) {
 249         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 250         *ppv = PROTOCOL(This);
 251     }else if(IsEqualGUID(&IID_IInternetProtocolRoot, riid)) {
 252         TRACE("(%p)->(IID_IInternetProtocolRoot %p)\n", This, ppv);
 253         *ppv = PROTOCOL(This);
 254     }else if(IsEqualGUID(&IID_IInternetProtocol, riid)) {
 255         TRACE("(%p)->(IID_IInternetProtocol %p)\n", This, ppv);
 256         *ppv = PROTOCOL(This);
 257     }else if(IsEqualGUID(&IID_IInternetPriority, riid)) {
 258         TRACE("(%p)->(IID_IInternetPriority %p)\n", This, ppv);
 259         *ppv = PRIORITY(This);
 260     }
 261
 262     if(*ppv) {
 263         IInternetProtocol_AddRef(iface);
 264         return S_OK;
 265     }
 266
 267     WARN("not supported interface %s\n", debugstr_guid(riid));
 268     return E_NOINTERFACE;
 269 }
 270
 271 static ULONG WINAPI HttpProtocol_AddRef(IInternetProtocol *iface)
 272 {
 273     HttpProtocol *This = PROTOCOL_THIS(iface);
 274     LONG ref = InterlockedIncrement(&This->ref);
 275     TRACE("(%p) ref=%d\n", This, ref);
 276     return ref;
 277 }
 278
 279 static ULONG WINAPI HttpProtocol_Release(IInternetProtocol *iface)
 280 {
 281     HttpProtocol *This = PROTOCOL_THIS(iface);
 282     LONG ref = InterlockedDecrement(&This->ref);
 283
 284     TRACE("(%p) ref=%d\n", This, ref);
 285
 286     if(!ref) {
 287         HTTPPROTOCOL_Close(This);
 288         heap_free(This);
 289
 290         URLMON_UnlockModule();
 291     }
 292
 293     return ref;
 294 }
 295
 296 static HRESULT WINAPI HttpProtocol_Start(IInternetProtocol *iface, LPCWSTR szUrl,
 297         IInternetProtocolSink *pOIProtSink, IInternetBindInfo *pOIBindInfo,
 298         DWORD grfPI, DWORD dwReserved)
 299 {
 300     HttpProtocol *This = PROTOCOL_THIS(iface);
 301     URL_COMPONENTSW url;
 302     DWORD len = 0, request_flags = INTERNET_FLAG_KEEP_CONNECTION;
 303     ULONG num = 0;
 304     IServiceProvider *service_provider = 0;
 305     IHttpNegotiate2 *http_negotiate2 = 0;
 306     LPWSTR host = 0, path = 0, user = 0, pass = 0, addl_header = 0,
 307         post_cookie = 0, optional = 0;
 308     BYTE security_id[512];
 309     LPOLESTR user_agent, accept_mimes[257];
 310     HRESULT hres;
 311
 312     static const WCHAR wszHttp[] = {'h','t','t','p',':'};
 313     static const WCHAR wszBindVerb[BINDVERB_CUSTOM][5] =
 314         {{'G','E','T',0},
 315          {'P','O','S','T',0},
 316          {'P','U','T',0}};
 317
 318     TRACE("(%p)->(%s %p %p %08x %d)\n", This, debugstr_w(szUrl), pOIProtSink,
 319             pOIBindInfo, grfPI, dwReserved);
 320
 321     IInternetProtocolSink_AddRef(pOIProtSink);
 322     This->protocol_sink = pOIProtSink;
 323
 324     memset(&This->bind_info, 0, sizeof(This->bind_info));
 325     This->bind_info.cbSize = sizeof(BINDINFO);
 326     hres = IInternetBindInfo_GetBindInfo(pOIBindInfo, &This->grfBINDF, &This->bind_info);
 327     if (hres != S_OK)
 328     {
 329         WARN("GetBindInfo failed: %08x\n", hres);
 330         goto done;
 331     }
 332
 333     if (lstrlenW(szUrl) < sizeof(wszHttp)/sizeof(WCHAR)
 334         || memcmp(szUrl, wszHttp, sizeof(wszHttp)))
 335     {
 336         hres = MK_E_SYNTAX;
 337         goto done;
 338     }
 339
 340     memset(&url, 0, sizeof(url));
 341     url.dwStructSize = sizeof(url);
 342     url.dwSchemeLength = url.dwHostNameLength = url.dwUrlPathLength = url.dwUserNameLength =
 343         url.dwPasswordLength = 1;
 344     if (!InternetCrackUrlW(szUrl, 0, 0, &url))
 345     {
 346         hres = MK_E_SYNTAX;
 347         goto done;
 348     }
 349     host = strndupW(url.lpszHostName, url.dwHostNameLength);
 350     path = strndupW(url.lpszUrlPath, url.dwUrlPathLength);
 351     user = strndupW(url.lpszUserName, url.dwUserNameLength);
 352     pass = strndupW(url.lpszPassword, url.dwPasswordLength);
 353     if (!url.nPort)
 354         url.nPort = INTERNET_DEFAULT_HTTP_PORT;
 355
 356     if(!(This->grfBINDF & BINDF_FROMURLMON))
 357         IInternetProtocolSink_ReportProgress(This->protocol_sink, BINDSTATUS_DIRECTBIND, NULL);
 358
 359     hres = IInternetBindInfo_GetBindString(pOIBindInfo, BINDSTRING_USER_AGENT, &user_agent,
 360                                            1, &num);
 361     if (hres != S_OK || !num)
 362     {
 363         CHAR null_char = 0;
 364         LPSTR user_agenta = NULL;
 365         len = 0;
 366         if ((hres = ObtainUserAgentString(0, &null_char, &len)) != E_OUTOFMEMORY)
 367         {
 368             WARN("ObtainUserAgentString failed: %08x\n", hres);
 369         }
 370         else if (!(user_agenta = heap_alloc(len*sizeof(CHAR))))
 371         {
 372             WARN("Out of memory\n");
 373         }
 374         else if ((hres = ObtainUserAgentString(0, user_agenta, &len)) != S_OK)
 375         {
 376             WARN("ObtainUserAgentString failed: %08x\n", hres);
 377         }
 378         else
 379         {
 380             if (!(user_agent = CoTaskMemAlloc((len)*sizeof(WCHAR))))
 381                 WARN("Out of memory\n");
 382             else
 383                 MultiByteToWideChar(CP_ACP, 0, user_agenta, -1, user_agent, len*sizeof(WCHAR));
 384         }
 385         heap_free(user_agenta);
 386     }
 387
 388     This->internet = InternetOpenW(user_agent, 0, NULL, NULL, INTERNET_FLAG_ASYNC);
 389     if (!This->internet)
 390     {
 391         WARN("InternetOpen failed: %d\n", GetLastError());
 392         hres = INET_E_NO_SESSION;
 393         goto done;
 394     }
 395
 396     /* Native does not check for success of next call, so we won't either */
 397     InternetSetStatusCallbackW(This->internet, HTTPPROTOCOL_InternetStatusCallback);
 398
 399     This->connect = InternetConnectW(This->internet, host, url.nPort, user,
 400                                      pass, INTERNET_SERVICE_HTTP, 0, (DWORD)This);
 401     if (!This->connect)
 402     {
 403         WARN("InternetConnect failed: %d\n", GetLastError());
 404         hres = INET_E_CANNOT_CONNECT;
 405         goto done;
 406     }
 407
 408     num = sizeof(accept_mimes)/sizeof(accept_mimes[0])-1;
 409     hres = IInternetBindInfo_GetBindString(pOIBindInfo, BINDSTRING_ACCEPT_MIMES,
 410                                            accept_mimes,
 411                                            num, &num);
 412     if (hres != S_OK)
 413     {
 414         WARN("GetBindString BINDSTRING_ACCEPT_MIMES failed: %08x\n", hres);
 415         hres = INET_E_NO_VALID_MEDIA;
 416         goto done;
 417     }
 418     accept_mimes[num] = 0;
 419
 420     if (This->grfBINDF & BINDF_NOWRITECACHE)
 421         request_flags |= INTERNET_FLAG_NO_CACHE_WRITE;
 422     This->request = HttpOpenRequestW(This->connect, This->bind_info.dwBindVerb < BINDVERB_CUSTOM ?
 423                                      wszBindVerb[This->bind_info.dwBindVerb] :
 424                                      This->bind_info.szCustomVerb,
 425                                      path, NULL, NULL, (LPCWSTR *)accept_mimes,
 426                                      request_flags, (DWORD)This);
 427     if (!This->request)
 428     {
 429         WARN("HttpOpenRequest failed: %d\n", GetLastError());
 430         hres = INET_E_RESOURCE_NOT_FOUND;
 431         goto done;
 432     }
 433
 434     hres = IInternetProtocolSink_QueryInterface(This->protocol_sink, &IID_IServiceProvider,
 435                                                 (void **)&service_provider);
 436     if (hres != S_OK)
 437     {
 438         WARN("IInternetProtocolSink_QueryInterface IID_IServiceProvider failed: %08x\n", hres);
 439         goto done;
 440     }
 441
 442     hres = IServiceProvider_QueryService(service_provider, &IID_IHttpNegotiate,
 443                                          &IID_IHttpNegotiate, (void **)&This->http_negotiate);
 444     if (hres != S_OK)
 445     {
 446         WARN("IServiceProvider_QueryService IID_IHttpNegotiate failed: %08x\n", hres);
 447         goto done;
 448     }
 449
 450     hres = IHttpNegotiate_BeginningTransaction(This->http_negotiate, szUrl, wszHeaders,
 451                                                0, &addl_header);
 452     if (hres != S_OK)
 453     {
 454         WARN("IHttpNegotiate_BeginningTransaction failed: %08x\n", hres);
 455         goto done;
 456     }
 457     else if (addl_header == NULL)
 458     {
 459         This->full_header = (LPWSTR)wszHeaders;
 460     }
 461     else
 462     {
 463         int len_addl_header = lstrlenW(addl_header);
 464         This->full_header = heap_alloc(len_addl_header*sizeof(WCHAR)+sizeof(wszHeaders));
 465         if (!This->full_header)
 466         {
 467             WARN("Out of memory\n");
 468             hres = E_OUTOFMEMORY;
 469             goto done;
 470         }
 471         lstrcpyW(This->full_header, addl_header);
 472         lstrcpyW(&This->full_header[len_addl_header], wszHeaders);
 473     }
 474
 475     hres = IServiceProvider_QueryService(service_provider, &IID_IHttpNegotiate2,
 476                                          &IID_IHttpNegotiate2, (void **)&http_negotiate2);
 477     if (hres != S_OK)
 478     {
 479         WARN("IServiceProvider_QueryService IID_IHttpNegotiate2 failed: %08x\n", hres);
 480         /* No goto done as per native */
 481     }
 482     else
 483     {
 484         len = sizeof(security_id)/sizeof(security_id[0]);
 485         hres = IHttpNegotiate2_GetRootSecurityId(http_negotiate2, security_id, &len, 0);
 486         if (hres != S_OK)
 487         {
 488             WARN("IHttpNegotiate2_GetRootSecurityId failed: %08x\n", hres);
 489             /* No goto done as per native */
 490         }
 491     }
 492
 493     /* FIXME: Handle security_id. Native calls undocumented function IsHostInProxyBypassList. */
 494
 495     if (This->bind_info.dwBindVerb == BINDVERB_POST)
 496     {
 497         num = 0;
 498         hres = IInternetBindInfo_GetBindString(pOIBindInfo, BINDSTRING_POST_COOKIE, &post_cookie,
 499                                                1, &num);
 500         if (hres == S_OK && num &&
 501             !InternetSetOptionW(This->request, INTERNET_OPTION_SECONDARY_CACHE_KEY,
 502                                 post_cookie, lstrlenW(post_cookie)))
 503         {
 504             WARN("InternetSetOption INTERNET_OPTION_SECONDARY_CACHE_KEY failed: %d\n",
 505                  GetLastError());
 506         }
 507     }
 508
 509     if (This->bind_info.dwBindVerb != BINDVERB_GET)
 510     {
 511         /* Native does not use GlobalLock/GlobalUnlock, so we won't either */
 512         if (This->bind_info.stgmedData.tymed != TYMED_HGLOBAL)
 513             WARN("Expected This->bind_info.stgmedData.tymed to be TYMED_HGLOBAL, not %d\n",
 514                  This->bind_info.stgmedData.tymed);
 515         else
 516             optional = (LPWSTR)This->bind_info.stgmedData.u.hGlobal;
 517     }
 518     if (!HttpSendRequestW(This->request, This->full_header, lstrlenW(This->full_header),
 519                           optional,
 520                           optional ? This->bind_info.cbstgmedData : 0) &&
 521         GetLastError() != ERROR_IO_PENDING)
 522     {
 523         WARN("HttpSendRequest failed: %d\n", GetLastError());
 524         hres = INET_E_DOWNLOAD_FAILURE;
 525         goto done;
 526     }
 527
 528     hres = S_OK;
 529 done:
 530     if (hres != S_OK)
 531     {
 532         IInternetProtocolSink_ReportResult(This->protocol_sink, hres, 0, NULL);
 533         HTTPPROTOCOL_Close(This);
 534     }
 535
 536     CoTaskMemFree(post_cookie);
 537     CoTaskMemFree(addl_header);
 538     if (http_negotiate2)
 539         IHttpNegotiate2_Release(http_negotiate2);
 540     if (service_provider)
 541         IServiceProvider_Release(service_provider);
 542
 543     while (num<sizeof(accept_mimes)/sizeof(accept_mimes[0]) &&
 544            accept_mimes[num])
 545         CoTaskMemFree(accept_mimes[num++]);
 546     CoTaskMemFree(user_agent);
 547
 548     heap_free(pass);
 549     heap_free(user);
 550     heap_free(path);
 551     heap_free(host);
 552
 553     return hres;
 554 }
 555
 556 static HRESULT WINAPI HttpProtocol_Continue(IInternetProtocol *iface, PROTOCOLDATA *pProtocolData)
 557 {
 558     HttpProtocol *This = PROTOCOL_THIS(iface);
 559     DWORD len = sizeof(DWORD), status_code;
 560     LPWSTR response_headers = 0, content_type = 0, content_length = 0;
 561
 562     static const WCHAR wszDefaultContentType[] =
 563         {'t','e','x','t','/','h','t','m','l',0};
 564
 565     TRACE("(%p)->(%p)\n", This, pProtocolData);
 566
 567     if (!pProtocolData)
 568     {
 569         WARN("Expected pProtocolData to be non-NULL\n");
 570         return S_OK;
 571     }
 572     else if (!This->request)
 573     {
 574         WARN("Expected request to be non-NULL\n");
 575         return S_OK;
 576     }
 577     else if (!This->http_negotiate)
 578     {
 579         WARN("Expected IHttpNegotiate pointer to be non-NULL\n");
 580         return S_OK;
 581     }
 582     else if (!This->protocol_sink)
 583     {
 584         WARN("Expected IInternetProtocolSink pointer to be non-NULL\n");
 585         return S_OK;
 586     }
 587
 588     if (pProtocolData->pData == (LPVOID)BINDSTATUS_DOWNLOADINGDATA)
 589     {
 590         if (!HttpQueryInfoW(This->request, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER,
 591                             &status_code, &len, NULL))
 592         {
 593             WARN("HttpQueryInfo failed: %d\n", GetLastError());
 594         }
 595         else
 596         {
 597             len = 0;
 598             if ((!HttpQueryInfoW(This->request, HTTP_QUERY_RAW_HEADERS_CRLF, response_headers, &len,
 599                                  NULL) &&
 600                  GetLastError() != ERROR_INSUFFICIENT_BUFFER) ||
 601                 !(response_headers = heap_alloc(len)) ||
 602                 !HttpQueryInfoW(This->request, HTTP_QUERY_RAW_HEADERS_CRLF, response_headers, &len,
 603                                 NULL))
 604             {
 605                 WARN("HttpQueryInfo failed: %d\n", GetLastError());
 606             }
 607             else
 608             {
 609                 HRESULT hres = IHttpNegotiate_OnResponse(This->http_negotiate, status_code,
 610                                                          response_headers, NULL, NULL);
 611                 if (hres != S_OK)
 612                 {
 613                     WARN("IHttpNegotiate_OnResponse failed: %08x\n", hres);
 614                     goto done;
 615                 }
 616             }
 617         }
 618
 619         len = 0;
 620         if ((!HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_TYPE, content_type, &len, NULL) &&
 621              GetLastError() != ERROR_INSUFFICIENT_BUFFER) ||
 622             !(content_type = heap_alloc(len)) ||
 623             !HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_TYPE, content_type, &len, NULL))
 624         {
 625             WARN("HttpQueryInfo failed: %d\n", GetLastError());
 626             IInternetProtocolSink_ReportProgress(This->protocol_sink,
 627                                                  (This->grfBINDF & BINDF_FROMURLMON) ?
 628                                                  BINDSTATUS_MIMETYPEAVAILABLE :
 629                                                  BINDSTATUS_RAWMIMETYPE,
 630                                                  wszDefaultContentType);
 631         }
 632         else
 633         {
 634             /* remove the charset, if present */
 635             LPWSTR p = strchrW(content_type, ';');
 636             if (p) *p = '\0';
 637
 638             IInternetProtocolSink_ReportProgress(This->protocol_sink,
 639                                                  (This->grfBINDF & BINDF_FROMURLMON) ?
 640                                                  BINDSTATUS_MIMETYPEAVAILABLE :
 641                                                  BINDSTATUS_RAWMIMETYPE,
 642                                                  content_type);
 643         }
 644
 645         len = 0;
 646         if ((!HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_LENGTH, content_length, &len, NULL) &&
 647              GetLastError() != ERROR_INSUFFICIENT_BUFFER) ||
 648             !(content_length = heap_alloc(len)) ||
 649             !HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_LENGTH, content_length, &len, NULL))
 650         {
 651             WARN("HttpQueryInfo failed: %d\n", GetLastError());
 652             This->content_length = 0;
 653         }
 654         else
 655         {
 656             This->content_length = atoiW(content_length);
 657         }
 658
 659         This->flags |= FLAG_FIRST_CONTINUE_COMPLETE;
 660     }
 661
 662     if (pProtocolData->pData >= (LPVOID)BINDSTATUS_DOWNLOADINGDATA)
 663     {
 664         /* InternetQueryDataAvailable may immediately fork and perform its asynchronous
 665          * read, so clear the flag _before_ calling so it does not incorrectly get cleared
 666          * after the status callback is called */
 667         This->flags &= ~FLAG_REQUEST_COMPLETE;
 668         if (!InternetQueryDataAvailable(This->request, &This->available_bytes, 0, 0))
 669         {
 670             if (GetLastError() != ERROR_IO_PENDING)
 671             {
 672                 This->flags |= FLAG_REQUEST_COMPLETE;
 673                 WARN("InternetQueryDataAvailable failed: %d\n", GetLastError());
 674                 HTTPPROTOCOL_ReportResult(This, INET_E_DATA_NOT_AVAILABLE);
 675             }
 676         }
 677         else
 678         {
 679             This->flags |= FLAG_REQUEST_COMPLETE;
 680             HTTPPROTOCOL_ReportData(This);
 681         }
 682     }
 683
 684 done:
 685     heap_free(response_headers);
 686     heap_free(content_type);
 687     heap_free(content_length);
 688
 689     /* Returns S_OK on native */
 690     return S_OK;
 691 }
 692
 693 static HRESULT WINAPI HttpProtocol_Abort(IInternetProtocol *iface, HRESULT hrReason,
 694         DWORD dwOptions)
 695 {
 696     HttpProtocol *This = PROTOCOL_THIS(iface);
 697     FIXME("(%p)->(%08x %08x)\n", This, hrReason, dwOptions);
 698     return E_NOTIMPL;
 699 }
 700
 701 static HRESULT WINAPI HttpProtocol_Terminate(IInternetProtocol *iface, DWORD dwOptions)
 702 {
 703     HttpProtocol *This = PROTOCOL_THIS(iface);
 704
 705     TRACE("(%p)->(%08x)\n", This, dwOptions);
 706     HTTPPROTOCOL_Close(This);
 707
 708     return S_OK;
 709 }
 710
 711 static HRESULT WINAPI HttpProtocol_Suspend(IInternetProtocol *iface)
 712 {
 713     HttpProtocol *This = PROTOCOL_THIS(iface);
 714     FIXME("(%p)\n", This);
 715     return E_NOTIMPL;
 716 }
 717
 718 static HRESULT WINAPI HttpProtocol_Resume(IInternetProtocol *iface)
 719 {
 720     HttpProtocol *This = PROTOCOL_THIS(iface);
 721     FIXME("(%p)\n", This);
 722     return E_NOTIMPL;
 723 }
 724
 725 static HRESULT WINAPI HttpProtocol_Read(IInternetProtocol *iface, void *pv,
 726         ULONG cb, ULONG *pcbRead)
 727 {
 728     HttpProtocol *This = PROTOCOL_THIS(iface);
 729     ULONG read = 0, len = 0;
 730     HRESULT hres = S_FALSE;
 731
 732     TRACE("(%p)->(%p %u %p)\n", This, pv, cb, pcbRead);
 733
 734     if (!(This->flags & FLAG_REQUEST_COMPLETE))
 735     {
 736         hres = E_PENDING;
 737     }
 738     else while (!(This->flags & FLAG_ALL_DATA_READ) &&
 739                 read < cb)
 740     {
 741         if (This->available_bytes == 0)
 742         {
 743             /* InternetQueryDataAvailable may immediately fork and perform its asynchronous
 744              * read, so clear the flag _before_ calling so it does not incorrectly get cleared
 745              * after the status callback is called */
 746             This->flags &= ~FLAG_REQUEST_COMPLETE;
 747             if (!InternetQueryDataAvailable(This->request, &This->available_bytes, 0, 0))
 748             {
 749                 if (GetLastError() == ERROR_IO_PENDING)
 750                 {
 751                     hres = E_PENDING;
 752                 }
 753                 else
 754                 {
 755                     WARN("InternetQueryDataAvailable failed: %d\n", GetLastError());
 756                     hres = INET_E_DATA_NOT_AVAILABLE;
 757                     HTTPPROTOCOL_ReportResult(This, hres);
 758                 }
 759                 goto done;
 760             }
 761             else if (This->available_bytes == 0)
 762             {
 763                 HTTPPROTOCOL_AllDataRead(This);
 764             }
 765         }
 766         else
 767         {
 768             if (!InternetReadFile(This->request, ((BYTE *)pv)+read,
 769                                   This->available_bytes > cb-read ?
 770                                   cb-read : This->available_bytes, &len))
 771             {
 772                 WARN("InternetReadFile failed: %d\n", GetLastError());
 773                 hres = INET_E_DOWNLOAD_FAILURE;
 774                 HTTPPROTOCOL_ReportResult(This, hres);
 775                 goto done;
 776             }
 777             else if (len == 0)
 778             {
 779                 HTTPPROTOCOL_AllDataRead(This);
 780             }
 781             else
 782             {
 783                 read += len;
 784                 This->current_position += len;
 785                 This->available_bytes -= len;
 786             }
 787         }
 788     }
 789
 790     /* Per MSDN this should be if (read == cb), but native returns S_OK
 791      * if any bytes were read, so we will too */
 792     if (read)
 793         hres = S_OK;
 794
 795 done:
 796     if (pcbRead)
 797         *pcbRead = read;
 798
 799     if (hres != E_PENDING)
 800         This->flags |= FLAG_REQUEST_COMPLETE;
 801
 802     return hres;
 803 }
 804
 805 static HRESULT WINAPI HttpProtocol_Seek(IInternetProtocol *iface, LARGE_INTEGER dlibMove,
 806         DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition)
 807 {
 808     HttpProtocol *This = PROTOCOL_THIS(iface);
 809     FIXME("(%p)->(%d %d %p)\n", This, dlibMove.u.LowPart, dwOrigin, plibNewPosition);
 810     return E_NOTIMPL;
 811 }
 812
 813 static HRESULT WINAPI HttpProtocol_LockRequest(IInternetProtocol *iface, DWORD dwOptions)
 814 {
 815     HttpProtocol *This = PROTOCOL_THIS(iface);
 816
 817     TRACE("(%p)->(%08x)\n", This, dwOptions);
 818
 819     if (!InternetLockRequestFile(This->request, &This->lock))
 820         WARN("InternetLockRequest failed: %d\n", GetLastError());
 821
 822     return S_OK;
 823 }
 824
 825 static HRESULT WINAPI HttpProtocol_UnlockRequest(IInternetProtocol *iface)
 826 {
 827     HttpProtocol *This = PROTOCOL_THIS(iface);
 828
 829     TRACE("(%p)\n", This);
 830
 831     if (This->lock)
 832     {
 833         if (!InternetUnlockRequestFile(This->lock))
 834             WARN("InternetUnlockRequest failed: %d\n", GetLastError());
 835         This->lock = 0;
 836     }
 837
 838     return S_OK;
 839 }
 840
 841 #undef PROTOCOL_THIS
 842
 843 #define PRIORITY_THIS(iface) DEFINE_THIS(HttpProtocol, InternetPriority, iface)
 844
 845 static HRESULT WINAPI HttpPriority_QueryInterface(IInternetPriority *iface, REFIID riid, void **ppv)
 846 {
 847     HttpProtocol *This = PRIORITY_THIS(iface);
 848     return IInternetProtocol_QueryInterface(PROTOCOL(This), riid, ppv);
 849 }
 850
 851 static ULONG WINAPI HttpPriority_AddRef(IInternetPriority *iface)
 852 {
 853     HttpProtocol *This = PRIORITY_THIS(iface);
 854     return IInternetProtocol_AddRef(PROTOCOL(This));
 855 }
 856
 857 static ULONG WINAPI HttpPriority_Release(IInternetPriority *iface)
 858 {
 859     HttpProtocol *This = PRIORITY_THIS(iface);
 860     return IInternetProtocol_Release(PROTOCOL(This));
 861 }
 862
 863 static HRESULT WINAPI HttpPriority_SetPriority(IInternetPriority *iface, LONG nPriority)
 864 {
 865     HttpProtocol *This = PRIORITY_THIS(iface);
 866
 867     TRACE("(%p)->(%d)\n", This, nPriority);
 868
 869     This->priority = nPriority;
 870     return S_OK;
 871 }
 872
 873 static HRESULT WINAPI HttpPriority_GetPriority(IInternetPriority *iface, LONG *pnPriority)
 874 {
 875     HttpProtocol *This = PRIORITY_THIS(iface);
 876
 877     TRACE("(%p)->(%p)\n", This, pnPriority);
 878
 879     *pnPriority = This->priority;
 880     return S_OK;
 881 }
 882
 883 #undef PRIORITY_THIS
 884
 885 static const IInternetPriorityVtbl HttpPriorityVtbl = {
 886     HttpPriority_QueryInterface,
 887     HttpPriority_AddRef,
 888     HttpPriority_Release,
 889     HttpPriority_SetPriority,
 890     HttpPriority_GetPriority
 891 };
 892
 893 static const IInternetProtocolVtbl HttpProtocolVtbl = {
 894     HttpProtocol_QueryInterface,
 895     HttpProtocol_AddRef,
 896     HttpProtocol_Release,
 897     HttpProtocol_Start,
 898     HttpProtocol_Continue,
 899     HttpProtocol_Abort,
 900     HttpProtocol_Terminate,
 901     HttpProtocol_Suspend,
 902     HttpProtocol_Resume,
 903     HttpProtocol_Read,
 904     HttpProtocol_Seek,
 905     HttpProtocol_LockRequest,
 906     HttpProtocol_UnlockRequest
 907 };
 908
 909 HRESULT HttpProtocol_Construct(IUnknown *pUnkOuter, LPVOID *ppobj)
 910 {
 911     HttpProtocol *ret;
 912
 913     TRACE("(%p %p)\n", pUnkOuter, ppobj);
 914
 915     URLMON_LockModule();
 916
 917     ret = heap_alloc(sizeof(HttpProtocol));
 918
 919     ret->lpInternetProtocolVtbl = &HttpProtocolVtbl;
 920     ret->lpInternetPriorityVtbl = &HttpPriorityVtbl;
 921     ret->flags = ret->grfBINDF = 0;
 922     memset(&ret->bind_info, 0, sizeof(ret->bind_info));
 923     ret->protocol_sink = 0;
 924     ret->http_negotiate = 0;
 925     ret->internet = ret->connect = ret->request = 0;
 926     ret->full_header = 0;
 927     ret->lock = 0;
 928     ret->current_position = ret->content_length = ret->available_bytes = 0;
 929     ret->priority = 0;
 930     ret->ref = 1;
 931
 932     *ppobj = PROTOCOL(ret);
 933
 934     return S_OK;
 935 }
 936
 937 HRESULT HttpSProtocol_Construct(IUnknown *pUnkOuter, LPVOID *ppobj)
 938 {
 939     FIXME("(%p %p)\n", pUnkOuter, ppobj);
 940     return E_NOINTERFACE;
 941 }