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 #define NONAMELESSUNION
  29
  30 #include "windef.h"
  31 #include "winbase.h"
  32 #include "winuser.h"
  33 #include "ole2.h"
  34 #include "urlmon.h"
  35 #include "wininet.h"
  36 #include "urlmon_main.h"
  37
  38 #include "wine/debug.h"
  39 #include "wine/unicode.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(urlmon);
  42
  43 /* Flags are needed for, among other things, return HRESULTs from the Read function
  44  * to conform to native. For example, Read returns:
  45  *
  46  * 1. E_PENDING if called before the request has completed,
  47  *        (flags = 0)
  48  * 2. S_FALSE after all data has been read and S_OK has been reported,
  49  *        (flags = FLAG_REQUEST_COMPLETE | FLAG_ALL_DATA_READ | FLAG_RESULT_REPORTED)
  50  * 3. INET_E_DATA_NOT_AVAILABLE if InternetQueryDataAvailable fails. The first time
  51  *    this occurs, INET_E_DATA_NOT_AVAILABLE will also be reported to the sink,
  52  *        (flags = FLAG_REQUEST_COMPLETE)
  53  *    but upon subsequent calls to Read no reporting will take place, yet
  54  *    InternetQueryDataAvailable will still be called, and, on failure,
  55  *    INET_E_DATA_NOT_AVAILABLE will still be returned.
  56  *        (flags = FLAG_REQUEST_COMPLETE | FLAG_RESULT_REPORTED)
  57  *
  58  * FLAG_FIRST_DATA_REPORTED and FLAG_LAST_DATA_REPORTED are needed for proper
  59  * ReportData reporting. For example, if OnResponse returns S_OK, Continue will
  60  * report BSCF_FIRSTDATANOTIFICATION, and when all data has been read Read will
  61  * report BSCF_INTERMEDIATEDATANOTIFICATION|BSCF_LASTDATANOTIFICATION. However,
  62  * if OnResponse does not return S_OK, Continue will not report data, and Read
  63  * will report BSCF_FIRSTDATANOTIFICATION|BSCF_LASTDATANOTIFICATION when all
  64  * data has been read.
  65  */
  66 #define FLAG_REQUEST_COMPLETE 0x1
  67 #define FLAG_FIRST_CONTINUE_COMPLETE 0x2
  68 #define FLAG_FIRST_DATA_REPORTED 0x4
  69 #define FLAG_ALL_DATA_READ 0x8
  70 #define FLAG_LAST_DATA_REPORTED 0x10
  71 #define FLAG_RESULT_REPORTED 0x20
  72
  73 typedef struct {
  74     const IInternetProtocolVtbl *lpInternetProtocolVtbl;
  75     const IInternetPriorityVtbl *lpInternetPriorityVtbl;
  76
  77     DWORD flags, grfBINDF;
  78     BINDINFO bind_info;
  79     IInternetProtocolSink *protocol_sink;
  80     IHttpNegotiate *http_negotiate;
  81     HINTERNET internet, connect, request;
  82     LPWSTR full_header;
  83     HANDLE lock;
  84     ULONG current_position, content_length, available_bytes;
  85     LONG priority;
  86
  87     LONG ref;
  88 } HttpProtocol;
  89
  90 /* Default headers from native */
  91 static const WCHAR wszHeaders[] = {'A','c','c','e','p','t','-','E','n','c','o','d','i','n','g',
  92                                    ':',' ','g','z','i','p',',',' ','d','e','f','l','a','t','e',0};
  93
  94 /*
  95  * Helpers
  96  */
  97
  98 static void HTTPPROTOCOL_ReportResult(HttpProtocol *This, HRESULT hres)
  99 {
 100     if (!(This->flags & FLAG_RESULT_REPORTED) &&
 101         This->protocol_sink)
 102     {
 103         This->flags |= FLAG_RESULT_REPORTED;
 104         IInternetProtocolSink_ReportResult(This->protocol_sink, hres, 0, NULL);
 105     }
 106 }
 107
 108 static void HTTPPROTOCOL_ReportData(HttpProtocol *This)
 109 {
 110     DWORD bscf;
 111     if (!(This->flags & FLAG_LAST_DATA_REPORTED) &&
 112         This->protocol_sink)
 113     {
 114         if (This->flags & FLAG_FIRST_DATA_REPORTED)
 115         {
 116             bscf = BSCF_INTERMEDIATEDATANOTIFICATION;
 117         }
 118         else
 119         {
 120             This->flags |= FLAG_FIRST_DATA_REPORTED;
 121             bscf = BSCF_FIRSTDATANOTIFICATION;
 122         }
 123         if (This->flags & FLAG_ALL_DATA_READ &&
 124             !(This->flags & FLAG_LAST_DATA_REPORTED))
 125         {
 126             This->flags |= FLAG_LAST_DATA_REPORTED;
 127             bscf |= BSCF_LASTDATANOTIFICATION;
 128         }
 129         IInternetProtocolSink_ReportData(This->protocol_sink, bscf,
 130                                          This->current_position+This->available_bytes,
 131                                          This->content_length);
 132     }
 133 }
 134
 135 static void HTTPPROTOCOL_AllDataRead(HttpProtocol *This)
 136 {
 137     if (!(This->flags & FLAG_ALL_DATA_READ))
 138         This->flags |= FLAG_ALL_DATA_READ;
 139     HTTPPROTOCOL_ReportData(This);
 140     HTTPPROTOCOL_ReportResult(This, S_OK);
 141 }
 142
 143 static void HTTPPROTOCOL_Close(HttpProtocol *This)
 144 {
 145     if (This->http_negotiate)
 146     {
 147         IHttpNegotiate_Release(This->http_negotiate);
 148         This->http_negotiate = 0;
 149     }
 150     if (This->request)
 151     {
 152         InternetCloseHandle(This->request);
 153         This->request = 0;
 154     }
 155     if (This->connect)
 156     {
 157         InternetCloseHandle(This->connect);
 158         This->connect = 0;
 159     }
 160     if (This->internet)
 161     {
 162         InternetCloseHandle(This->internet);
 163         This->internet = 0;
 164     }
 165     if (This->full_header)
 166     {
 167         if (This->full_header != wszHeaders)
 168             HeapFree(GetProcessHeap(), 0, This->full_header);
 169         This->full_header = 0;
 170     }
 171     This->flags = 0;
 172 }
 173
 174 static void CALLBACK HTTPPROTOCOL_InternetStatusCallback(
 175     HINTERNET hInternet, DWORD_PTR dwContext, DWORD dwInternetStatus,
 176     LPVOID lpvStatusInformation, DWORD dwStatusInformationLength)
 177 {
 178     HttpProtocol *This = (HttpProtocol *)dwContext;
 179     PROTOCOLDATA data;
 180     ULONG ulStatusCode;
 181
 182     switch (dwInternetStatus)
 183     {
 184     case INTERNET_STATUS_RESOLVING_NAME:
 185         ulStatusCode = BINDSTATUS_FINDINGRESOURCE;
 186         break;
 187     case INTERNET_STATUS_CONNECTING_TO_SERVER:
 188         ulStatusCode = BINDSTATUS_CONNECTING;
 189         break;
 190     case INTERNET_STATUS_SENDING_REQUEST:
 191         ulStatusCode = BINDSTATUS_SENDINGREQUEST;
 192         break;
 193     case INTERNET_STATUS_REQUEST_COMPLETE:
 194         This->flags |= FLAG_REQUEST_COMPLETE;
 195         /* PROTOCOLDATA same as native */
 196         memset(&data, 0, sizeof(data));
 197         data.dwState = 0xf1000000;
 198         if (This->flags & FLAG_FIRST_CONTINUE_COMPLETE)
 199             data.pData = (LPVOID)BINDSTATUS_ENDDOWNLOADCOMPONENTS;
 200         else
 201             data.pData = (LPVOID)BINDSTATUS_DOWNLOADINGDATA;
 202         if (This->grfBINDF & BINDF_FROMURLMON)
 203             IInternetProtocolSink_Switch(This->protocol_sink, &data);
 204         else
 205             IInternetProtocol_Continue((IInternetProtocol *)This, &data);
 206         return;
 207     case INTERNET_STATUS_HANDLE_CLOSING:
 208         if (This->protocol_sink)
 209         {
 210             IInternetProtocolSink_Release(This->protocol_sink);
 211             This->protocol_sink = 0;
 212         }
 213         if (This->bind_info.cbSize)
 214         {
 215             ReleaseBindInfo(&This->bind_info);
 216             memset(&This->bind_info, 0, sizeof(This->bind_info));
 217         }
 218         return;
 219     default:
 220         WARN("Unhandled Internet status callback %d\n", dwInternetStatus);
 221         return;
 222     }
 223
 224     IInternetProtocolSink_ReportProgress(This->protocol_sink, ulStatusCode, (LPWSTR)lpvStatusInformation);
 225 }
 226
 227 static inline LPWSTR strndupW(LPWSTR string, int len)
 228 {
 229     LPWSTR ret = NULL;
 230     if (string &&
 231         (ret = HeapAlloc(GetProcessHeap(), 0, (len+1)*sizeof(WCHAR))) != NULL)
 232     {
 233         memcpy(ret, string, len*sizeof(WCHAR));
 234         ret[len] = 0;
 235     }
 236     return ret;
 237 }
 238
 239 /*
 240  * Interface implementations
 241  */
 242
 243 #define PROTOCOL(x)  ((IInternetProtocol*)  &(x)->lpInternetProtocolVtbl)
 244 #define PRIORITY(x)  ((IInternetPriority*)  &(x)->lpInternetPriorityVtbl)
 245
 246 #define PROTOCOL_THIS(iface) DEFINE_THIS(HttpProtocol, InternetProtocol, iface)
 247
 248 static HRESULT WINAPI HttpProtocol_QueryInterface(IInternetProtocol *iface, REFIID riid, void **ppv)
 249 {
 250     HttpProtocol *This = PROTOCOL_THIS(iface);
 251
 252     *ppv = NULL;
 253     if(IsEqualGUID(&IID_IUnknown, riid)) {
 254         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 255         *ppv = PROTOCOL(This);
 256     }else if(IsEqualGUID(&IID_IInternetProtocolRoot, riid)) {
 257         TRACE("(%p)->(IID_IInternetProtocolRoot %p)\n", This, ppv);
 258         *ppv = PROTOCOL(This);
 259     }else if(IsEqualGUID(&IID_IInternetProtocol, riid)) {
 260         TRACE("(%p)->(IID_IInternetProtocol %p)\n", This, ppv);
 261         *ppv = PROTOCOL(This);
 262     }else if(IsEqualGUID(&IID_IInternetPriority, riid)) {
 263         TRACE("(%p)->(IID_IInternetPriority %p)\n", This, ppv);
 264         *ppv = PRIORITY(This);
 265     }
 266
 267     if(*ppv) {
 268         IInternetProtocol_AddRef(iface);
 269         return S_OK;
 270     }
 271
 272     WARN("not supported interface %s\n", debugstr_guid(riid));
 273     return E_NOINTERFACE;
 274 }
 275
 276 static ULONG WINAPI HttpProtocol_AddRef(IInternetProtocol *iface)
 277 {
 278     HttpProtocol *This = PROTOCOL_THIS(iface);
 279     LONG ref = InterlockedIncrement(&This->ref);
 280     TRACE("(%p) ref=%d\n", This, ref);
 281     return ref;
 282 }
 283
 284 static ULONG WINAPI HttpProtocol_Release(IInternetProtocol *iface)
 285 {
 286     HttpProtocol *This = PROTOCOL_THIS(iface);
 287     LONG ref = InterlockedDecrement(&This->ref);
 288
 289     TRACE("(%p) ref=%d\n", This, ref);
 290
 291     if(!ref) {
 292         HTTPPROTOCOL_Close(This);
 293         HeapFree(GetProcessHeap(), 0, This);
 294
 295         URLMON_UnlockModule();
 296     }
 297
 298     return ref;
 299 }
 300
 301 static HRESULT WINAPI HttpProtocol_Start(IInternetProtocol *iface, LPCWSTR szUrl,
 302         IInternetProtocolSink *pOIProtSink, IInternetBindInfo *pOIBindInfo,
 303         DWORD grfPI, DWORD dwReserved)
 304 {
 305     HttpProtocol *This = PROTOCOL_THIS(iface);
 306     URL_COMPONENTSW url;
 307     DWORD len = 0, request_flags = INTERNET_FLAG_KEEP_CONNECTION;
 308     ULONG num = 0;
 309     IServiceProvider *service_provider = 0;
 310     IHttpNegotiate2 *http_negotiate2 = 0;
 311     LPWSTR host = 0, path = 0, user = 0, pass = 0, addl_header = 0,
 312         post_cookie = 0, optional = 0;
 313     BYTE security_id[512];
 314     LPOLESTR user_agent, accept_mimes[257];
 315     HRESULT hres;
 316
 317     static const WCHAR wszHttp[] = {'h','t','t','p',':'};
 318     static const WCHAR wszBindVerb[BINDVERB_CUSTOM][5] =
 319         {{'G','E','T',0},
 320          {'P','O','S','T',0},
 321          {'P','U','T',0}};
 322
 323     TRACE("(%p)->(%s %p %p %08x %d)\n", This, debugstr_w(szUrl), pOIProtSink,
 324             pOIBindInfo, grfPI, dwReserved);
 325
 326     IInternetProtocolSink_AddRef(pOIProtSink);
 327     This->protocol_sink = pOIProtSink;
 328
 329     memset(&This->bind_info, 0, sizeof(This->bind_info));
 330     This->bind_info.cbSize = sizeof(BINDINFO);
 331     hres = IInternetBindInfo_GetBindInfo(pOIBindInfo, &This->grfBINDF, &This->bind_info);
 332     if (hres != S_OK)
 333     {
 334         WARN("GetBindInfo failed: %08x\n", hres);
 335         goto done;
 336     }
 337
 338     if (lstrlenW(szUrl) < sizeof(wszHttp)/sizeof(WCHAR)
 339         || memcmp(szUrl, wszHttp, sizeof(wszHttp)))
 340     {
 341         hres = MK_E_SYNTAX;
 342         goto done;
 343     }
 344
 345     memset(&url, 0, sizeof(url));
 346     url.dwStructSize = sizeof(url);
 347     url.dwSchemeLength = url.dwHostNameLength = url.dwUrlPathLength = url.dwUserNameLength =
 348         url.dwPasswordLength = 1;
 349     if (!InternetCrackUrlW(szUrl, 0, 0, &url))
 350     {
 351         hres = MK_E_SYNTAX;
 352         goto done;
 353     }
 354     host = strndupW(url.lpszHostName, url.dwHostNameLength);
 355     path = strndupW(url.lpszUrlPath, url.dwUrlPathLength);
 356     user = strndupW(url.lpszUserName, url.dwUserNameLength);
 357     pass = strndupW(url.lpszPassword, url.dwPasswordLength);
 358     if (!url.nPort)
 359         url.nPort = INTERNET_DEFAULT_HTTP_PORT;
 360
 361     if(!(This->grfBINDF & BINDF_FROMURLMON))
 362         IInternetProtocolSink_ReportProgress(This->protocol_sink, BINDSTATUS_DIRECTBIND, NULL);
 363
 364     hres = IInternetBindInfo_GetBindString(pOIBindInfo, BINDSTRING_USER_AGENT, &user_agent,
 365                                            1, &num);
 366     if (hres != S_OK || !num)
 367     {
 368         CHAR null_char = 0;
 369         LPSTR user_agenta = NULL;
 370         len = 0;
 371         if ((hres = ObtainUserAgentString(0, &null_char, &len)) != E_OUTOFMEMORY)
 372         {
 373             WARN("ObtainUserAgentString failed: %08x\n", hres);
 374         }
 375         else if (!(user_agenta = HeapAlloc(GetProcessHeap(), 0, len*sizeof(CHAR))))
 376         {
 377             WARN("Out of memory\n");
 378         }
 379         else if ((hres = ObtainUserAgentString(0, user_agenta, &len)) != S_OK)
 380         {
 381             WARN("ObtainUserAgentString failed: %08x\n", hres);
 382         }
 383         else
 384         {
 385             if (!(user_agent = CoTaskMemAlloc((len)*sizeof(WCHAR))))
 386                 WARN("Out of memory\n");
 387             else
 388                 MultiByteToWideChar(CP_ACP, 0, user_agenta, -1, user_agent, len*sizeof(WCHAR));
 389         }
 390         HeapFree(GetProcessHeap(), 0, user_agenta);
 391     }
 392
 393     This->internet = InternetOpenW(user_agent, 0, NULL, NULL, INTERNET_FLAG_ASYNC);
 394     if (!This->internet)
 395     {
 396         WARN("InternetOpen failed: %d\n", GetLastError());
 397         hres = INET_E_NO_SESSION;
 398         goto done;
 399     }
 400
 401     /* Native does not check for success of next call, so we won't either */
 402     InternetSetStatusCallbackW(This->internet, HTTPPROTOCOL_InternetStatusCallback);
 403
 404     This->connect = InternetConnectW(This->internet, host, url.nPort, user,
 405                                      pass, INTERNET_SERVICE_HTTP, 0, (DWORD)This);
 406     if (!This->connect)
 407     {
 408         WARN("InternetConnect failed: %d\n", GetLastError());
 409         hres = INET_E_CANNOT_CONNECT;
 410         goto done;
 411     }
 412
 413     num = sizeof(accept_mimes)/sizeof(accept_mimes[0])-1;
 414     hres = IInternetBindInfo_GetBindString(pOIBindInfo, BINDSTRING_ACCEPT_MIMES,
 415                                            accept_mimes,
 416                                            num, &num);
 417     if (hres != S_OK)
 418     {
 419         WARN("GetBindString BINDSTRING_ACCEPT_MIMES failed: %08x\n", hres);
 420         hres = INET_E_NO_VALID_MEDIA;
 421         goto done;
 422     }
 423     accept_mimes[num] = 0;
 424
 425     if (This->grfBINDF & BINDF_NOWRITECACHE)
 426         request_flags |= INTERNET_FLAG_NO_CACHE_WRITE;
 427     This->request = HttpOpenRequestW(This->connect, This->bind_info.dwBindVerb < BINDVERB_CUSTOM ?
 428                                      wszBindVerb[This->bind_info.dwBindVerb] :
 429                                      This->bind_info.szCustomVerb,
 430                                      path, NULL, NULL, (LPCWSTR *)accept_mimes,
 431                                      request_flags, (DWORD)This);
 432     if (!This->request)
 433     {
 434         WARN("HttpOpenRequest failed: %d\n", GetLastError());
 435         hres = INET_E_RESOURCE_NOT_FOUND;
 436         goto done;
 437     }
 438
 439     hres = IInternetProtocolSink_QueryInterface(This->protocol_sink, &IID_IServiceProvider,
 440                                                 (void **)&service_provider);
 441     if (hres != S_OK)
 442     {
 443         WARN("IInternetProtocolSink_QueryInterface IID_IServiceProvider failed: %08x\n", hres);
 444         goto done;
 445     }
 446
 447     hres = IServiceProvider_QueryService(service_provider, &IID_IHttpNegotiate,
 448                                          &IID_IHttpNegotiate, (void **)&This->http_negotiate);
 449     if (hres != S_OK)
 450     {
 451         WARN("IServiceProvider_QueryService IID_IHttpNegotiate failed: %08x\n", hres);
 452         goto done;
 453     }
 454
 455     hres = IHttpNegotiate_BeginningTransaction(This->http_negotiate, szUrl, wszHeaders,
 456                                                0, &addl_header);
 457     if (hres != S_OK)
 458     {
 459         WARN("IHttpNegotiate_BeginningTransaction failed: %08x\n", hres);
 460         goto done;
 461     }
 462     else if (addl_header == NULL)
 463     {
 464         This->full_header = (LPWSTR)wszHeaders;
 465     }
 466     else
 467     {
 468         int len_addl_header = lstrlenW(addl_header);
 469         This->full_header = HeapAlloc(GetProcessHeap(), 0,
 470                                       len_addl_header*sizeof(WCHAR)+sizeof(wszHeaders));
 471         if (!This->full_header)
 472         {
 473             WARN("Out of memory\n");
 474             hres = E_OUTOFMEMORY;
 475             goto done;
 476         }
 477         lstrcpyW(This->full_header, addl_header);
 478         lstrcpyW(&This->full_header[len_addl_header], wszHeaders);
 479     }
 480
 481     hres = IServiceProvider_QueryService(service_provider, &IID_IHttpNegotiate2,
 482                                          &IID_IHttpNegotiate2, (void **)&http_negotiate2);
 483     if (hres != S_OK)
 484     {
 485         WARN("IServiceProvider_QueryService IID_IHttpNegotiate2 failed: %08x\n", hres);
 486         /* No goto done as per native */
 487     }
 488     else
 489     {
 490         len = sizeof(security_id)/sizeof(security_id[0]);
 491         hres = IHttpNegotiate2_GetRootSecurityId(http_negotiate2, security_id, &len, 0);
 492         if (hres != S_OK)
 493         {
 494             WARN("IHttpNegotiate2_GetRootSecurityId failed: %08x\n", hres);
 495             /* No goto done as per native */
 496         }
 497     }
 498
 499     /* FIXME: Handle security_id. Native calls undocumented function IsHostInProxyBypassList. */
 500
 501     if (This->bind_info.dwBindVerb == BINDVERB_POST)
 502     {
 503         num = 0;
 504         hres = IInternetBindInfo_GetBindString(pOIBindInfo, BINDSTRING_POST_COOKIE, &post_cookie,
 505                                                1, &num);
 506         if (hres == S_OK && num &&
 507             !InternetSetOptionW(This->request, INTERNET_OPTION_SECONDARY_CACHE_KEY,
 508                                 post_cookie, lstrlenW(post_cookie)))
 509         {
 510             WARN("InternetSetOption INTERNET_OPTION_SECONDARY_CACHE_KEY failed: %d\n",
 511                  GetLastError());
 512         }
 513     }
 514
 515     if (This->bind_info.dwBindVerb != BINDVERB_GET)
 516     {
 517         /* Native does not use GlobalLock/GlobalUnlock, so we won't either */
 518         if (This->bind_info.stgmedData.tymed != TYMED_HGLOBAL)
 519             WARN("Expected This->bind_info.stgmedData.tymed to be TYMED_HGLOBAL, not %d\n",
 520                  This->bind_info.stgmedData.tymed);
 521         else
 522             optional = (LPWSTR)This->bind_info.stgmedData.u.hGlobal;
 523     }
 524     if (!HttpSendRequestW(This->request, This->full_header, lstrlenW(This->full_header),
 525                           optional,
 526                           optional ? This->bind_info.cbstgmedData : 0) &&
 527         GetLastError() != ERROR_IO_PENDING)
 528     {
 529         WARN("HttpSendRequest failed: %d\n", GetLastError());
 530         hres = INET_E_DOWNLOAD_FAILURE;
 531         goto done;
 532     }
 533
 534     hres = S_OK;
 535 done:
 536     if (hres != S_OK)
 537     {
 538         IInternetProtocolSink_ReportResult(This->protocol_sink, hres, 0, NULL);
 539         HTTPPROTOCOL_Close(This);
 540     }
 541
 542     CoTaskMemFree(post_cookie);
 543     CoTaskMemFree(addl_header);
 544     if (http_negotiate2)
 545         IHttpNegotiate2_Release(http_negotiate2);
 546     if (service_provider)
 547         IServiceProvider_Release(service_provider);
 548
 549     while (num<sizeof(accept_mimes)/sizeof(accept_mimes[0]) &&
 550            accept_mimes[num])
 551         CoTaskMemFree(accept_mimes[num++]);
 552     CoTaskMemFree(user_agent);
 553
 554     HeapFree(GetProcessHeap(), 0, pass);
 555     HeapFree(GetProcessHeap(), 0, user);
 556     HeapFree(GetProcessHeap(), 0, path);
 557     HeapFree(GetProcessHeap(), 0, host);
 558
 559     return hres;
 560 }
 561
 562 static HRESULT WINAPI HttpProtocol_Continue(IInternetProtocol *iface, PROTOCOLDATA *pProtocolData)
 563 {
 564     HttpProtocol *This = PROTOCOL_THIS(iface);
 565     DWORD len = sizeof(DWORD), status_code;
 566     LPWSTR response_headers = 0, content_type = 0, content_length = 0;
 567
 568     static const WCHAR wszDefaultContentType[] =
 569         {'t','e','x','t','/','h','t','m','l',0};
 570
 571     TRACE("(%p)->(%p)\n", This, pProtocolData);
 572
 573     if (!pProtocolData)
 574     {
 575         WARN("Expected pProtocolData to be non-NULL\n");
 576         return S_OK;
 577     }
 578     else if (!This->request)
 579     {
 580         WARN("Expected request to be non-NULL\n");
 581         return S_OK;
 582     }
 583     else if (!This->http_negotiate)
 584     {
 585         WARN("Expected IHttpNegotiate pointer to be non-NULL\n");
 586         return S_OK;
 587     }
 588     else if (!This->protocol_sink)
 589     {
 590         WARN("Expected IInternetProtocolSink pointer to be non-NULL\n");
 591         return S_OK;
 592     }
 593
 594     if (pProtocolData->pData == (LPVOID)BINDSTATUS_DOWNLOADINGDATA)
 595     {
 596         if (!HttpQueryInfoW(This->request, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER,
 597                             &status_code, &len, NULL))
 598         {
 599             WARN("HttpQueryInfo failed: %d\n", GetLastError());
 600         }
 601         else
 602         {
 603             len = 0;
 604             if ((!HttpQueryInfoW(This->request, HTTP_QUERY_RAW_HEADERS_CRLF, response_headers, &len,
 605                                  NULL) &&
 606                  GetLastError() != ERROR_INSUFFICIENT_BUFFER) ||
 607                 !(response_headers = HeapAlloc(GetProcessHeap(), 0, len)) ||
 608                 !HttpQueryInfoW(This->request, HTTP_QUERY_RAW_HEADERS_CRLF, response_headers, &len,
 609                                 NULL))
 610             {
 611                 WARN("HttpQueryInfo failed: %d\n", GetLastError());
 612             }
 613             else
 614             {
 615                 HRESULT hres = IHttpNegotiate_OnResponse(This->http_negotiate, status_code,
 616                                                          response_headers, NULL, NULL);
 617                 if (hres != S_OK)
 618                 {
 619                     WARN("IHttpNegotiate_OnResponse failed: %08x\n", hres);
 620                     goto done;
 621                 }
 622             }
 623         }
 624
 625         len = 0;
 626         if ((!HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_TYPE, content_type, &len, NULL) &&
 627              GetLastError() != ERROR_INSUFFICIENT_BUFFER) ||
 628             !(content_type = HeapAlloc(GetProcessHeap(), 0, len)) ||
 629             !HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_TYPE, content_type, &len, NULL))
 630         {
 631             WARN("HttpQueryInfo failed: %d\n", GetLastError());
 632             IInternetProtocolSink_ReportProgress(This->protocol_sink,
 633                                                  (This->grfBINDF & BINDF_FROMURLMON) ?
 634                                                  BINDSTATUS_MIMETYPEAVAILABLE :
 635                                                  BINDSTATUS_RAWMIMETYPE,
 636                                                  wszDefaultContentType);
 637         }
 638         else
 639         {
 640             IInternetProtocolSink_ReportProgress(This->protocol_sink,
 641                                                  (This->grfBINDF & BINDF_FROMURLMON) ?
 642                                                  BINDSTATUS_MIMETYPEAVAILABLE :
 643                                                  BINDSTATUS_RAWMIMETYPE,
 644                                                  content_type);
 645         }
 646
 647         len = 0;
 648         if ((!HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_LENGTH, content_length, &len, NULL) &&
 649              GetLastError() != ERROR_INSUFFICIENT_BUFFER) ||
 650             !(content_length = HeapAlloc(GetProcessHeap(), 0, len)) ||
 651             !HttpQueryInfoW(This->request, HTTP_QUERY_CONTENT_LENGTH, content_length, &len, NULL))
 652         {
 653             WARN("HttpQueryInfo failed: %d\n", GetLastError());
 654             This->content_length = 0;
 655         }
 656         else
 657         {
 658             This->content_length = atoiW(content_length);
 659         }
 660
 661         This->flags |= FLAG_FIRST_CONTINUE_COMPLETE;
 662     }
 663
 664     if (pProtocolData->pData >= (LPVOID)BINDSTATUS_DOWNLOADINGDATA)
 665     {
 666         /* InternetQueryDataAvailable may immediately fork and perform its asynchronous
 667          * read, so clear the flag _before_ calling so it does not incorrectly get cleared
 668          * after the status callback is called */
 669         This->flags &= ~FLAG_REQUEST_COMPLETE;
 670         if (!InternetQueryDataAvailable(This->request, &This->available_bytes, 0, 0))
 671         {
 672             if (GetLastError() != ERROR_IO_PENDING)
 673             {
 674                 This->flags |= FLAG_REQUEST_COMPLETE;
 675                 WARN("InternetQueryDataAvailable failed: %d\n", GetLastError());
 676                 HTTPPROTOCOL_ReportResult(This, INET_E_DATA_NOT_AVAILABLE);
 677             }
 678         }
 679         else
 680         {
 681             This->flags |= FLAG_REQUEST_COMPLETE;
 682             HTTPPROTOCOL_ReportData(This);
 683         }
 684     }
 685
 686 done:
 687     HeapFree(GetProcessHeap(), 0, response_headers);
 688     HeapFree(GetProcessHeap(), 0, content_type);
 689     HeapFree(GetProcessHeap(), 0, content_length);
 690
 691     /* Returns S_OK on native */
 692     return S_OK;
 693 }
 694
 695 static HRESULT WINAPI HttpProtocol_Abort(IInternetProtocol *iface, HRESULT hrReason,
 696         DWORD dwOptions)
 697 {
 698     HttpProtocol *This = PROTOCOL_THIS(iface);
 699     FIXME("(%p)->(%08x %08x)\n", This, hrReason, dwOptions);
 700     return E_NOTIMPL;
 701 }
 702
 703 static HRESULT WINAPI HttpProtocol_Terminate(IInternetProtocol *iface, DWORD dwOptions)
 704 {
 705     HttpProtocol *This = PROTOCOL_THIS(iface);
 706
 707     TRACE("(%p)->(%08x)\n", This, dwOptions);
 708     HTTPPROTOCOL_Close(This);
 709
 710     return S_OK;
 711 }
 712
 713 static HRESULT WINAPI HttpProtocol_Suspend(IInternetProtocol *iface)
 714 {
 715     HttpProtocol *This = PROTOCOL_THIS(iface);
 716     FIXME("(%p)\n", This);
 717     return E_NOTIMPL;
 718 }
 719
 720 static HRESULT WINAPI HttpProtocol_Resume(IInternetProtocol *iface)
 721 {
 722     HttpProtocol *This = PROTOCOL_THIS(iface);
 723     FIXME("(%p)\n", This);
 724     return E_NOTIMPL;
 725 }
 726
 727 static HRESULT WINAPI HttpProtocol_Read(IInternetProtocol *iface, void *pv,
 728         ULONG cb, ULONG *pcbRead)
 729 {
 730     HttpProtocol *This = PROTOCOL_THIS(iface);
 731     ULONG read = 0, len = 0;
 732     HRESULT hres = S_FALSE;
 733
 734     TRACE("(%p)->(%p %u %p)\n", This, pv, cb, pcbRead);
 735
 736     if (!(This->flags & FLAG_REQUEST_COMPLETE))
 737     {
 738         hres = E_PENDING;
 739     }
 740     else while (!(This->flags & FLAG_ALL_DATA_READ) &&
 741                 read < cb)
 742     {
 743         if (This->available_bytes == 0)
 744         {
 745             /* InternetQueryDataAvailable may immediately fork and perform its asynchronous
 746              * read, so clear the flag _before_ calling so it does not incorrectly get cleared
 747              * after the status callback is called */
 748             This->flags &= ~FLAG_REQUEST_COMPLETE;
 749             if (!InternetQueryDataAvailable(This->request, &This->available_bytes, 0, 0))
 750             {
 751                 if (GetLastError() == ERROR_IO_PENDING)
 752                 {
 753                     hres = E_PENDING;
 754                 }
 755                 else
 756                 {
 757                     WARN("InternetQueryDataAvailable failed: %d\n", GetLastError());
 758                     hres = INET_E_DATA_NOT_AVAILABLE;
 759                     HTTPPROTOCOL_ReportResult(This, hres);
 760                 }
 761                 goto done;
 762             }
 763             else if (This->available_bytes == 0)
 764             {
 765                 HTTPPROTOCOL_AllDataRead(This);
 766             }
 767         }
 768         else
 769         {
 770             if (!InternetReadFile(This->request, ((BYTE *)pv)+read,
 771                                   This->available_bytes > cb-read ?
 772                                   cb-read : This->available_bytes, &len))
 773             {
 774                 WARN("InternetReadFile failed: %d\n", GetLastError());
 775                 hres = INET_E_DOWNLOAD_FAILURE;
 776                 HTTPPROTOCOL_ReportResult(This, hres);
 777                 goto done;
 778             }
 779             else if (len == 0)
 780             {
 781                 HTTPPROTOCOL_AllDataRead(This);
 782             }
 783             else
 784             {
 785                 read += len;
 786                 This->current_position += len;
 787                 This->available_bytes -= len;
 788             }
 789         }
 790     }
 791
 792     /* Per MSDN this should be if (read == cb), but native returns S_OK
 793      * if any bytes were read, so we will too */
 794     if (read)
 795         hres = S_OK;
 796
 797 done:
 798     if (pcbRead)
 799         *pcbRead = read;
 800
 801     if (hres != E_PENDING)
 802         This->flags |= FLAG_REQUEST_COMPLETE;
 803
 804     return hres;
 805 }
 806
 807 static HRESULT WINAPI HttpProtocol_Seek(IInternetProtocol *iface, LARGE_INTEGER dlibMove,
 808         DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition)
 809 {
 810     HttpProtocol *This = PROTOCOL_THIS(iface);
 811     FIXME("(%p)->(%d %d %p)\n", This, dlibMove.u.LowPart, dwOrigin, plibNewPosition);
 812     return E_NOTIMPL;
 813 }
 814
 815 static HRESULT WINAPI HttpProtocol_LockRequest(IInternetProtocol *iface, DWORD dwOptions)
 816 {
 817     HttpProtocol *This = PROTOCOL_THIS(iface);
 818
 819     TRACE("(%p)->(%08x)\n", This, dwOptions);
 820
 821     if (!InternetLockRequestFile(This->request, &This->lock))
 822         WARN("InternetLockRequest failed: %d\n", GetLastError());
 823
 824     return S_OK;
 825 }
 826
 827 static HRESULT WINAPI HttpProtocol_UnlockRequest(IInternetProtocol *iface)
 828 {
 829     HttpProtocol *This = PROTOCOL_THIS(iface);
 830
 831     TRACE("(%p)\n", This);
 832
 833     if (This->lock)
 834     {
 835         if (!InternetUnlockRequestFile(This->lock))
 836             WARN("InternetUnlockRequest failed: %d\n", GetLastError());
 837         This->lock = 0;
 838     }
 839
 840     return S_OK;
 841 }
 842
 843 #undef PROTOCOL_THIS
 844
 845 #define PRIORITY_THIS(iface) DEFINE_THIS(HttpProtocol, InternetPriority, iface)
 846
 847 static HRESULT WINAPI HttpPriority_QueryInterface(IInternetPriority *iface, REFIID riid, void **ppv)
 848 {
 849     HttpProtocol *This = PRIORITY_THIS(iface);
 850     return IInternetProtocol_QueryInterface(PROTOCOL(This), riid, ppv);
 851 }
 852
 853 static ULONG WINAPI HttpPriority_AddRef(IInternetPriority *iface)
 854 {
 855     HttpProtocol *This = PRIORITY_THIS(iface);
 856     return IInternetProtocol_AddRef(PROTOCOL(This));
 857 }
 858
 859 static ULONG WINAPI HttpPriority_Release(IInternetPriority *iface)
 860 {
 861     HttpProtocol *This = PRIORITY_THIS(iface);
 862     return IInternetProtocol_Release(PROTOCOL(This));
 863 }
 864
 865 static HRESULT WINAPI HttpPriority_SetPriority(IInternetPriority *iface, LONG nPriority)
 866 {
 867     HttpProtocol *This = PRIORITY_THIS(iface);
 868
 869     TRACE("(%p)->(%d)\n", This, nPriority);
 870
 871     This->priority = nPriority;
 872     return S_OK;
 873 }
 874
 875 static HRESULT WINAPI HttpPriority_GetPriority(IInternetPriority *iface, LONG *pnPriority)
 876 {
 877     HttpProtocol *This = PRIORITY_THIS(iface);
 878
 879     TRACE("(%p)->(%p)\n", This, pnPriority);
 880
 881     *pnPriority = This->priority;
 882     return S_OK;
 883 }
 884
 885 #undef PRIORITY_THIS
 886
 887 static const IInternetPriorityVtbl HttpPriorityVtbl = {
 888     HttpPriority_QueryInterface,
 889     HttpPriority_AddRef,
 890     HttpPriority_Release,
 891     HttpPriority_SetPriority,
 892     HttpPriority_GetPriority
 893 };
 894
 895 static const IInternetProtocolVtbl HttpProtocolVtbl = {
 896     HttpProtocol_QueryInterface,
 897     HttpProtocol_AddRef,
 898     HttpProtocol_Release,
 899     HttpProtocol_Start,
 900     HttpProtocol_Continue,
 901     HttpProtocol_Abort,
 902     HttpProtocol_Terminate,
 903     HttpProtocol_Suspend,
 904     HttpProtocol_Resume,
 905     HttpProtocol_Read,
 906     HttpProtocol_Seek,
 907     HttpProtocol_LockRequest,
 908     HttpProtocol_UnlockRequest
 909 };
 910
 911 HRESULT HttpProtocol_Construct(IUnknown *pUnkOuter, LPVOID *ppobj)
 912 {
 913     HttpProtocol *ret;
 914
 915     TRACE("(%p %p)\n", pUnkOuter, ppobj);
 916
 917     URLMON_LockModule();
 918
 919     ret = HeapAlloc(GetProcessHeap(), 0, sizeof(HttpProtocol));
 920
 921     ret->lpInternetProtocolVtbl = &HttpProtocolVtbl;
 922     ret->lpInternetPriorityVtbl = &HttpPriorityVtbl;
 923     ret->flags = ret->grfBINDF = 0;
 924     memset(&ret->bind_info, 0, sizeof(ret->bind_info));
 925     ret->protocol_sink = 0;
 926     ret->http_negotiate = 0;
 927     ret->internet = ret->connect = ret->request = 0;
 928     ret->full_header = 0;
 929     ret->lock = 0;
 930     ret->current_position = ret->content_length = ret->available_bytes = 0;
 931     ret->priority = 0;
 932     ret->ref = 1;
 933
 934     *ppobj = PROTOCOL(ret);
 935
 936     return S_OK;
 937 }