/*
 * Wininet - Http Implementation
 *
 * Copyright 1999 Corel Corporation
 * Copyright 2002 CodeWeavers Inc.
 * Copyright 2002 TransGaming Technologies Inc.
 * Copyright 2004 Mike McCormack for CodeWeavers
 * Copyright 2005 Aric Stewart for CodeWeavers
 * Copyright 2006 Robert Shearman for CodeWeavers
 *
 * Ulrich Czekalla
 * David Hammerton
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include "config.h"
#include "wine/port.h"

#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <time.h>
#include <assert.h>

#include "windef.h"
#include "winbase.h"
#include "wininet.h"
#include "winerror.h"
#define NO_SHLWAPI_STREAM
#define NO_SHLWAPI_REG
#define NO_SHLWAPI_STRFCNS
#define NO_SHLWAPI_GDI
#include "shlwapi.h"
#include "sspi.h"

#include "internet.h"
#include "wine/debug.h"
#include "wine/unicode.h"

WINE_DEFAULT_DEBUG_CHANNEL(wininet);

static const WCHAR g_szHttp1_0[] = {' ','H','T','T','P','/','1','.','0',0 };
static const WCHAR g_szHttp1_1[] = {' ','H','T','T','P','/','1','.','1',0 };
static const WCHAR g_szReferer[] = {'R','e','f','e','r','e','r',0};
static const WCHAR g_szAccept[] = {'A','c','c','e','p','t',0};
static const WCHAR g_szUserAgent[] = {'U','s','e','r','-','A','g','e','n','t',0};
static const WCHAR szHost[] = { 'H','o','s','t',0 };
static const WCHAR szAuthorization[] = { 'A','u','t','h','o','r','i','z','a','t','i','o','n',0 };
static const WCHAR szProxy_Authorization[] = { 'P','r','o','x','y','-','A','u','t','h','o','r','i','z','a','t','i','o','n',0 };
static const WCHAR szStatus[] = { 'S','t','a','t','u','s',0 };
static const WCHAR szKeepAlive[] = {'K','e','e','p','-','A','l','i','v','e',0};

#define MAXHOSTNAME 100
#define MAX_FIELD_VALUE_LEN 256
#define MAX_FIELD_LEN 256

#define HTTP_REFERER    g_szReferer
#define HTTP_ACCEPT     g_szAccept
#define HTTP_USERAGENT  g_szUserAgent

#define HTTP_ADDHDR_FLAG_ADD				0x20000000
#define HTTP_ADDHDR_FLAG_ADD_IF_NEW			0x10000000
#define HTTP_ADDHDR_FLAG_COALESCE			0x40000000
#define HTTP_ADDHDR_FLAG_COALESCE_WITH_COMMA		0x40000000
#define HTTP_ADDHDR_FLAG_COALESCE_WITH_SEMICOLON	0x01000000
#define HTTP_ADDHDR_FLAG_REPLACE			0x80000000
#define HTTP_ADDHDR_FLAG_REQ				0x02000000

#define ARRAYSIZE(array) (sizeof(array)/sizeof((array)[0]))

struct HttpAuthInfo
{
    LPWSTR scheme;
    CredHandle cred;
    CtxtHandle ctx;
    TimeStamp exp;
    ULONG attr;
    void *auth_data;
    unsigned int auth_data_len;
    BOOL finished; /* finished authenticating */
};

static void HTTP_CloseConnection(LPWININETHANDLEHEADER hdr);
static void HTTP_CloseHTTPRequestHandle(LPWININETHANDLEHEADER hdr);
static void HTTP_CloseHTTPSessionHandle(LPWININETHANDLEHEADER hdr);
static BOOL HTTP_OpenConnection(LPWININETHTTPREQW lpwhr);
static BOOL HTTP_GetResponseHeaders(LPWININETHTTPREQW lpwhr);
static BOOL HTTP_ProcessHeader(LPWININETHTTPREQW lpwhr, LPCWSTR field, LPCWSTR value, DWORD dwModifier);
static LPWSTR * HTTP_InterpretHttpHeader(LPCWSTR buffer);
static BOOL HTTP_InsertCustomHeader(LPWININETHTTPREQW lpwhr, LPHTTPHEADERW lpHdr);
static INT HTTP_GetCustomHeaderIndex(LPWININETHTTPREQW lpwhr, LPCWSTR lpszField, INT index, BOOL Request);
static BOOL HTTP_DeleteCustomHeader(LPWININETHTTPREQW lpwhr, DWORD index);
static LPWSTR HTTP_build_req( LPCWSTR *list, int len );
static BOOL WINAPI HTTP_HttpQueryInfoW( LPWININETHTTPREQW lpwhr, DWORD
        dwInfoLevel, LPVOID lpBuffer, LPDWORD lpdwBufferLength, LPDWORD
        lpdwIndex);
static BOOL HTTP_HandleRedirect(LPWININETHTTPREQW lpwhr, LPCWSTR lpszUrl);
static UINT HTTP_DecodeBase64(LPCWSTR base64, LPSTR bin);
static BOOL HTTP_VerifyValidHeader(LPWININETHTTPREQW lpwhr, LPCWSTR field);


LPHTTPHEADERW HTTP_GetHeader(LPWININETHTTPREQW req, LPCWSTR head)
{
    int HeaderIndex = 0;
    HeaderIndex = HTTP_GetCustomHeaderIndex(req, head, 0, TRUE);
    if (HeaderIndex == -1)
        return NULL;
    else
        return &req->pCustHeaders[HeaderIndex];
}

/***********************************************************************
 *           HTTP_Tokenize (internal)
 *
 *  Tokenize a string, allocating memory for the tokens.
 */
static LPWSTR * HTTP_Tokenize(LPCWSTR string, LPCWSTR token_string)
{
    LPWSTR * token_array;
    int tokens = 0;
    int i;
    LPCWSTR next_token;

    /* empty string has no tokens */
    if (*string)
        tokens++;
    /* count tokens */
    for (i = 0; string[i]; i++)
        if (!strncmpW(string+i, token_string, strlenW(token_string)))
        {
            DWORD j;
            tokens++;
            /* we want to skip over separators, but not the null terminator */
            for (j = 0; j < strlenW(token_string) - 1; j++)
                if (!string[i+j])
                    break;
            i += j;
        }

    /* add 1 for terminating NULL */
    token_array = HeapAlloc(GetProcessHeap(), 0, (tokens+1) * sizeof(*token_array));
    token_array[tokens] = NULL;
    if (!tokens)
        return token_array;
    for (i = 0; i < tokens; i++)
    {
        int len;
        next_token = strstrW(string, token_string);
        if (!next_token) next_token = string+strlenW(string);
        len = next_token - string;
        token_array[i] = HeapAlloc(GetProcessHeap(), 0, (len+1)*sizeof(WCHAR));
        memcpy(token_array[i], string, len*sizeof(WCHAR));
        token_array[i][len] = '\0';
        string = next_token+strlenW(token_string);
    }
    return token_array;
}

/***********************************************************************
 *           HTTP_FreeTokens (internal)
 *
 *  Frees memory returned from HTTP_Tokenize.
 */
static void HTTP_FreeTokens(LPWSTR * token_array)
{
    int i;
    for (i = 0; token_array[i]; i++)
        HeapFree(GetProcessHeap(), 0, token_array[i]);
    HeapFree(GetProcessHeap(), 0, token_array);
}

/* **********************************************************************
 * 
 * Helper functions for the HttpSendRequest(Ex) functions
 * 
 */
static void AsyncHttpSendRequestProc(WORKREQUEST *workRequest)
{
    struct WORKREQ_HTTPSENDREQUESTW const *req = &workRequest->u.HttpSendRequestW;
    LPWININETHTTPREQW lpwhr = (LPWININETHTTPREQW) workRequest->hdr;

    TRACE("%p\n", lpwhr);

    HTTP_HttpSendRequestW(lpwhr, req->lpszHeader,
            req->dwHeaderLength, req->lpOptional, req->dwOptionalLength,
            req->dwContentLength, req->bEndRequest);

    HeapFree(GetProcessHeap(), 0, req->lpszHeader);
}

static void HTTP_FixVerb( LPWININETHTTPREQW lpwhr )
{
    /* if the verb is NULL default to GET */
    if (NULL == lpwhr->lpszVerb)
    {
	    static const WCHAR szGET[] = { 'G','E','T', 0 };
	    lpwhr->lpszVerb = WININET_strdupW(szGET);
    }
}

static void HTTP_FixURL( LPWININETHTTPREQW lpwhr)
{
    static const WCHAR szSlash[] = { '/',0 };
    static const WCHAR szHttp[] = { 'h','t','t','p',':','/','/', 0 };

    /* If we don't have a path we set it to root */
    if (NULL == lpwhr->lpszPath)
        lpwhr->lpszPath = WININET_strdupW(szSlash);
    else /* remove \r and \n*/
    {
        int nLen = strlenW(lpwhr->lpszPath);
        while ((nLen >0 ) && ((lpwhr->lpszPath[nLen-1] == '\r')||(lpwhr->lpszPath[nLen-1] == '\n')))
        {
            nLen--;
            lpwhr->lpszPath[nLen]='\0';
        }
        /* Replace '\' with '/' */
        while (nLen>0) {
            nLen--;
            if (lpwhr->lpszPath[nLen] == '\\') lpwhr->lpszPath[nLen]='/';
        }
    }

    if(CSTR_EQUAL != CompareStringW( LOCALE_SYSTEM_DEFAULT, NORM_IGNORECASE,
                       lpwhr->lpszPath, strlenW(lpwhr->lpszPath), szHttp, strlenW(szHttp) )
       && lpwhr->lpszPath[0] != '/') /* not an absolute path ?? --> fix it !! */
    {
        WCHAR *fixurl = HeapAlloc(GetProcessHeap(), 0, 
                             (strlenW(lpwhr->lpszPath) + 2)*sizeof(WCHAR));
        *fixurl = '/';
        strcpyW(fixurl + 1, lpwhr->lpszPath);
        HeapFree( GetProcessHeap(), 0, lpwhr->lpszPath );
        lpwhr->lpszPath = fixurl;
    }
}

static LPWSTR HTTP_BuildHeaderRequestString( LPWININETHTTPREQW lpwhr, LPCWSTR verb, LPCWSTR path, BOOL http1_1 )
{
    LPWSTR requestString;
    DWORD len, n;
    LPCWSTR *req;
    INT i;
    LPWSTR p;

    static const WCHAR szSpace[] = { ' ',0 };
    static const WCHAR szcrlf[] = {'\r','\n', 0};
    static const WCHAR szColon[] = { ':',' ',0 };
    static const WCHAR sztwocrlf[] = {'\r','\n','\r','\n', 0};

    /* allocate space for an array of all the string pointers to be added */
    len = (lpwhr->nCustHeaders)*4 + 9;
    req = HeapAlloc( GetProcessHeap(), 0, len*sizeof(LPCWSTR) );

    /* add the verb, path and HTTP version string */
    n = 0;
    req[n++] = verb;
    req[n++] = szSpace;
    req[n++] = path;
    req[n++] = http1_1 ? g_szHttp1_1 : g_szHttp1_0;

    /* Append custom request headers */
    for (i = 0; i < lpwhr->nCustHeaders; i++)
    {
        if (lpwhr->pCustHeaders[i].wFlags & HDR_ISREQUEST)
        {
            req[n++] = szcrlf;
            req[n++] = lpwhr->pCustHeaders[i].lpszField;
            req[n++] = szColon;
            req[n++] = lpwhr->pCustHeaders[i].lpszValue;

            TRACE("Adding custom header %s (%s)\n",
                   debugstr_w(lpwhr->pCustHeaders[i].lpszField),
                   debugstr_w(lpwhr->pCustHeaders[i].lpszValue));
        }
    }

    if( n >= len )
        ERR("oops. buffer overrun\n");

    req[n] = NULL;
    requestString = HTTP_build_req( req, 4 );
    HeapFree( GetProcessHeap(), 0, req );

    /*
     * Set (header) termination string for request
     * Make sure there's exactly two new lines at the end of the request
     */
    p = &requestString[strlenW(requestString)-1];
    while ( (*p == '\n') || (*p == '\r') )
       p--;
    strcpyW( p+1, sztwocrlf );
    
    return requestString;
}

static void HTTP_ProcessHeaders( LPWININETHTTPREQW lpwhr )
{
    static const WCHAR szSet_Cookie[] = { 'S','e','t','-','C','o','o','k','i','e',0 };
    int HeaderIndex;
    LPHTTPHEADERW setCookieHeader;

    HeaderIndex = HTTP_GetCustomHeaderIndex(lpwhr, szSet_Cookie, 0, FALSE);
    if (HeaderIndex == -1)
            return;
    setCookieHeader = &lpwhr->pCustHeaders[HeaderIndex];

    if (!(lpwhr->hdr.dwFlags & INTERNET_FLAG_NO_COOKIES) && setCookieHeader->lpszValue)
    {
        int nPosStart = 0, nPosEnd = 0, len;
        static const WCHAR szFmt[] = { 'h','t','t','p',':','/','/','%','s','/',0};

        while (setCookieHeader->lpszValue[nPosEnd] != '\0')
        {
            LPWSTR buf_cookie, cookie_name, cookie_data;
            LPWSTR buf_url;
            LPWSTR domain = NULL;
            LPHTTPHEADERW Host;

            int nEqualPos = 0;
            while (setCookieHeader->lpszValue[nPosEnd] != ';' && setCookieHeader->lpszValue[nPosEnd] != ',' &&
                   setCookieHeader->lpszValue[nPosEnd] != '\0')
            {
                nPosEnd++;
            }
            if (setCookieHeader->lpszValue[nPosEnd] == ';')
            {
                /* fixme: not case sensitive, strcasestr is gnu only */
                int nDomainPosEnd = 0;
                int nDomainPosStart = 0, nDomainLength = 0;
                static const WCHAR szDomain[] = {'d','o','m','a','i','n','=',0};
                LPWSTR lpszDomain = strstrW(&setCookieHeader->lpszValue[nPosEnd], szDomain);
                if (lpszDomain)
                { /* they have specified their own domain, lets use it */
                    while (lpszDomain[nDomainPosEnd] != ';' && lpszDomain[nDomainPosEnd] != ',' &&
                           lpszDomain[nDomainPosEnd] != '\0')
                    {
                        nDomainPosEnd++;
                    }
                    nDomainPosStart = strlenW(szDomain);
                    nDomainLength = (nDomainPosEnd - nDomainPosStart) + 1;
                    domain = HeapAlloc(GetProcessHeap(), 0, (nDomainLength + 1)*sizeof(WCHAR));
                    lstrcpynW(domain, &lpszDomain[nDomainPosStart], nDomainLength + 1);
                }
            }
            if (setCookieHeader->lpszValue[nPosEnd] == '\0') break;
            buf_cookie = HeapAlloc(GetProcessHeap(), 0, ((nPosEnd - nPosStart) + 1)*sizeof(WCHAR));
            lstrcpynW(buf_cookie, &setCookieHeader->lpszValue[nPosStart], (nPosEnd - nPosStart) + 1);
            TRACE("%s\n", debugstr_w(buf_cookie));
            while (buf_cookie[nEqualPos] != '=' && buf_cookie[nEqualPos] != '\0')
            {
                nEqualPos++;
            }
            if (buf_cookie[nEqualPos] == '\0' || buf_cookie[nEqualPos + 1] == '\0')
            {
                HeapFree(GetProcessHeap(), 0, buf_cookie);
                break;
            }

            cookie_name = HeapAlloc(GetProcessHeap(), 0, (nEqualPos + 1)*sizeof(WCHAR));
            lstrcpynW(cookie_name, buf_cookie, nEqualPos + 1);
            cookie_data = &buf_cookie[nEqualPos + 1];

            Host = HTTP_GetHeader(lpwhr,szHost);
            len = lstrlenW((domain ? domain : (Host?Host->lpszValue:NULL))) + 
                strlenW(lpwhr->lpszPath) + 9;
            buf_url = HeapAlloc(GetProcessHeap(), 0, len*sizeof(WCHAR));
            sprintfW(buf_url, szFmt, (domain ? domain : (Host?Host->lpszValue:NULL))); /* FIXME PATH!!! */
            InternetSetCookieW(buf_url, cookie_name, cookie_data);

            HeapFree(GetProcessHeap(), 0, buf_url);
            HeapFree(GetProcessHeap(), 0, buf_cookie);
            HeapFree(GetProcessHeap(), 0, cookie_name);
            HeapFree(GetProcessHeap(), 0, domain);
            nPosStart = nPosEnd;
        }
    }
}

static inline BOOL is_basic_auth_value( LPCWSTR pszAuthValue )
{
    static const WCHAR szBasic[] = {'B','a','s','i','c'}; /* Note: not nul-terminated */
    return !strncmpiW(pszAuthValue, szBasic, ARRAYSIZE(szBasic)) &&
        ((pszAuthValue[ARRAYSIZE(szBasic)] != ' ') || !pszAuthValue[ARRAYSIZE(szBasic)]);
}

static BOOL HTTP_DoAuthorization( LPWININETHTTPREQW lpwhr, LPCWSTR pszAuthValue,
                                  struct HttpAuthInfo **ppAuthInfo,
                                  LPWSTR domain_and_username, LPWSTR password )
{
    SECURITY_STATUS sec_status;
    struct HttpAuthInfo *pAuthInfo = *ppAuthInfo;
    BOOL first = FALSE;

    TRACE("%s\n", debugstr_w(pszAuthValue));

    if (!domain_and_username) return FALSE;

    if (!pAuthInfo)
    {
        TimeStamp exp;

        first = TRUE;
        pAuthInfo = HeapAlloc(GetProcessHeap(), 0, sizeof(*pAuthInfo));
        if (!pAuthInfo)
            return FALSE;

        SecInvalidateHandle(&pAuthInfo->cred);
        SecInvalidateHandle(&pAuthInfo->ctx);
        memset(&pAuthInfo->exp, 0, sizeof(pAuthInfo->exp));
        pAuthInfo->attr = 0;
        pAuthInfo->auth_data = NULL;
        pAuthInfo->auth_data_len = 0;
        pAuthInfo->finished = FALSE;

        if (is_basic_auth_value(pszAuthValue))
        {
            static const WCHAR szBasic[] = {'B','a','s','i','c',0};
            pAuthInfo->scheme = WININET_strdupW(szBasic);
            if (!pAuthInfo->scheme)
            {
                HeapFree(GetProcessHeap(), 0, pAuthInfo);
                return FALSE;
            }
        }
        else
        {
            SEC_WINNT_AUTH_IDENTITY_W nt_auth_identity;
            WCHAR *user = strchrW(domain_and_username, '\\');
            WCHAR *domain = domain_and_username;

            pAuthInfo->scheme = WININET_strdupW(pszAuthValue);
            if (!pAuthInfo->scheme)
            {
                HeapFree(GetProcessHeap(), 0, pAuthInfo);
                return FALSE;
            }

            if (user) user++;
            else
            {
                user = domain_and_username;
                domain = NULL;
            }
            nt_auth_identity.Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
            nt_auth_identity.User = user;
            nt_auth_identity.UserLength = strlenW(nt_auth_identity.User);
            nt_auth_identity.Domain = domain;
            nt_auth_identity.DomainLength = domain ? user - domain - 1 : 0;
            nt_auth_identity.Password = password;
            nt_auth_identity.PasswordLength = strlenW(nt_auth_identity.Password);

            /* FIXME: make sure scheme accepts SEC_WINNT_AUTH_IDENTITY before calling AcquireCredentialsHandle */

            sec_status = AcquireCredentialsHandleW(NULL, pAuthInfo->scheme,
                                                   SECPKG_CRED_OUTBOUND, NULL,
                                                   &nt_auth_identity, NULL,
                                                   NULL, &pAuthInfo->cred,
                                                   &exp);
            if (sec_status != SEC_E_OK)
            {
                WARN("AcquireCredentialsHandleW for scheme %s failed with error 0x%08x\n",
                     debugstr_w(pAuthInfo->scheme), sec_status);
                HeapFree(GetProcessHeap(), 0, pAuthInfo->scheme);
                HeapFree(GetProcessHeap(), 0, pAuthInfo);
                return FALSE;
            }
        }
        *ppAuthInfo = pAuthInfo;
    }
    else if (pAuthInfo->finished)
        return FALSE;

    if ((strlenW(pszAuthValue) < strlenW(pAuthInfo->scheme)) ||
        strncmpiW(pszAuthValue, pAuthInfo->scheme, strlenW(pAuthInfo->scheme)))
    {
        ERR("authentication scheme changed from %s to %s\n",
            debugstr_w(pAuthInfo->scheme), debugstr_w(pszAuthValue));
        return FALSE;
    }

    if (is_basic_auth_value(pszAuthValue))
    {
        int userlen = WideCharToMultiByte(CP_UTF8, 0, domain_and_username, lstrlenW(domain_and_username), NULL, 0, NULL, NULL);
        int passlen = WideCharToMultiByte(CP_UTF8, 0, password, lstrlenW(password), NULL, 0, NULL, NULL);
        char *auth_data;

        TRACE("basic authentication\n");

        /* length includes a nul terminator, which will be re-used for the ':' */
        auth_data = HeapAlloc(GetProcessHeap(), 0, userlen + 1 + passlen);
        if (!auth_data)
            return FALSE;

        WideCharToMultiByte(CP_UTF8, 0, domain_and_username, -1, auth_data, userlen, NULL, NULL);
        auth_data[userlen] = ':';
        WideCharToMultiByte(CP_UTF8, 0, password, -1, &auth_data[userlen+1], passlen, NULL, NULL);

        pAuthInfo->auth_data = auth_data;
        pAuthInfo->auth_data_len = userlen + 1 + passlen;
        pAuthInfo->finished = TRUE;

        return TRUE;
    }
    else
    {
        LPCWSTR pszAuthData;
        SecBufferDesc out_desc, in_desc;
        SecBuffer out, in;
        unsigned char *buffer;
        ULONG context_req = ISC_REQ_CONNECTION | ISC_REQ_USE_DCE_STYLE |
            ISC_REQ_MUTUAL_AUTH | ISC_REQ_DELEGATE;

        in.BufferType = SECBUFFER_TOKEN;
        in.cbBuffer = 0;
        in.pvBuffer = NULL;

        in_desc.ulVersion = 0;
        in_desc.cBuffers = 1;
        in_desc.pBuffers = &in;

        pszAuthData = pszAuthValue + strlenW(pAuthInfo->scheme);
        if (*pszAuthData == ' ')
        {
            pszAuthData++;
            in.cbBuffer = HTTP_DecodeBase64(pszAuthData, NULL);
            in.pvBuffer = HeapAlloc(GetProcessHeap(), 0, in.cbBuffer);
            HTTP_DecodeBase64(pszAuthData, in.pvBuffer);
        }

        buffer = HeapAlloc(GetProcessHeap(), 0, 0x100);

        out.BufferType = SECBUFFER_TOKEN;
        out.cbBuffer = 0x100;
        out.pvBuffer = buffer;

        out_desc.ulVersion = 0;
        out_desc.cBuffers = 1;
        out_desc.pBuffers = &out;

        sec_status = InitializeSecurityContextW(first ? &pAuthInfo->cred : NULL,
                                                first ? NULL : &pAuthInfo->ctx, NULL,
                                                context_req, 0, SECURITY_NETWORK_DREP,
                                                in.pvBuffer ? &in_desc : NULL,
                                                0, &pAuthInfo->ctx, &out_desc,
                                                &pAuthInfo->attr, &pAuthInfo->exp);
        if (sec_status == SEC_E_OK)
        {
            pAuthInfo->finished = TRUE;
            pAuthInfo->auth_data = out.pvBuffer;
            pAuthInfo->auth_data_len = out.cbBuffer;
            TRACE("sending last auth packet\n");
        }
        else if (sec_status == SEC_I_CONTINUE_NEEDED)
        {
            pAuthInfo->auth_data = out.pvBuffer;
            pAuthInfo->auth_data_len = out.cbBuffer;
            TRACE("sending next auth packet\n");
        }
        else
        {
            ERR("InitializeSecurityContextW returned error 0x%08x\n", sec_status);
            HeapFree(GetProcessHeap(), 0, out.pvBuffer);
            return FALSE;
        }
    }

    return TRUE;
}

/***********************************************************************
 *           HTTP_HttpAddRequestHeadersW (internal)
 */
static BOOL WINAPI HTTP_HttpAddRequestHeadersW(LPWININETHTTPREQW lpwhr,
	LPCWSTR lpszHeader, DWORD dwHeaderLength, DWORD dwModifier)
{
    LPWSTR lpszStart;
    LPWSTR lpszEnd;
    LPWSTR buffer;
    BOOL bSuccess = FALSE;
    DWORD len;

    TRACE("copying header: %s\n", debugstr_w(lpszHeader));

    if( dwHeaderLength == ~0U )
        len = strlenW(lpszHeader);
    else
        len = dwHeaderLength;
    buffer = HeapAlloc( GetProcessHeap(), 0, sizeof(WCHAR)*(len+1) );
    lstrcpynW( buffer, lpszHeader, len + 1);

    lpszStart = buffer;

    do
    {
        LPWSTR * pFieldAndValue;

        lpszEnd = lpszStart;

        while (*lpszEnd != '\0')
        {
            if (*lpszEnd == '\r' && *(lpszEnd + 1) == '\n')
                 break;
            lpszEnd++;
        }

        if (*lpszStart == '\0')
	    break;

        if (*lpszEnd == '\r')
        {
            *lpszEnd = '\0';
            lpszEnd += 2; /* Jump over \r\n */
        }
        TRACE("interpreting header %s\n", debugstr_w(lpszStart));
        pFieldAndValue = HTTP_InterpretHttpHeader(lpszStart);
        if (pFieldAndValue)
        {
            bSuccess = HTTP_VerifyValidHeader(lpwhr, pFieldAndValue[0]);
            if (bSuccess)
                bSuccess = HTTP_ProcessHeader(lpwhr, pFieldAndValue[0],
                    pFieldAndValue[1], dwModifier | HTTP_ADDHDR_FLAG_REQ);
            HTTP_FreeTokens(pFieldAndValue);
        }

        lpszStart = lpszEnd;
    } while (bSuccess);

    HeapFree(GetProcessHeap(), 0, buffer);

    return bSuccess;
}

/***********************************************************************
 *           HttpAddRequestHeadersW (WININET.@)
 *
 * Adds one or more HTTP header to the request handler
 *
 * RETURNS
 *    TRUE  on success
 *    FALSE on failure
 *
 */
BOOL WINAPI HttpAddRequestHeadersW(HINTERNET hHttpRequest,
	LPCWSTR lpszHeader, DWORD dwHeaderLength, DWORD dwModifier)
{
    BOOL bSuccess = FALSE;
    LPWININETHTTPREQW lpwhr;

    TRACE("%p, %s, %i, %i\n", hHttpRequest, debugstr_w(lpszHeader), dwHeaderLength,
          dwModifier);

    if (!lpszHeader) 
      return TRUE;

    lpwhr = (LPWININETHTTPREQW) WININET_GetObject( hHttpRequest );
    if (NULL == lpwhr ||  lpwhr->hdr.htype != WH_HHTTPREQ)
    {
        INTERNET_SetLastError(ERROR_INTERNET_INCORRECT_HANDLE_TYPE);
        goto lend;
    }
    bSuccess = HTTP_HttpAddRequestHeadersW( lpwhr, lpszHeader, dwHeaderLength, dwModifier );
lend:
    if( lpwhr )
        WININET_Release( &lpwhr->hdr );

    return bSuccess;
}

/***********************************************************************
 *           HttpAddRequestHeadersA (WININET.@)
 *
 * Adds one or more HTTP header to the request handler
 *
 * RETURNS
 *    TRUE  on success
 *    FALSE on failure
 *
 */
BOOL WINAPI HttpAddRequestHeadersA(HINTERNET hHttpRequest,
	LPCSTR lpszHeader, DWORD dwHeaderLength, DWORD dwModifier)
{
    DWORD len;
    LPWSTR hdr;
    BOOL r;

    TRACE("%p, %s, %i, %i\n", hHttpRequest, debugstr_a(lpszHeader), dwHeaderLength,
          dwModifier);

    len = MultiByteToWideChar( CP_ACP, 0, lpszHeader, dwHeaderLength, NULL, 0 );
    hdr = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
    MultiByteToWideChar( CP_ACP, 0, lpszHeader, dwHeaderLength, hdr, len );
    if( dwHeaderLength != ~0U )
        dwHeaderLength = len;

    r = HttpAddRequestHeadersW( hHttpRequest, hdr, dwHeaderLength, dwModifier );

    HeapFree( GetProcessHeap(), 0, hdr );

    return r;
}

/* read any content returned by the server so that the connection can be
 * reused */
static void HTTP_DrainContent(LPWININETHTTPREQW lpwhr)
{
    DWORD bytes_read;

    if (!NETCON_connected(&lpwhr->netConnection)) return;

    if (lpwhr->dwContentLength == -1)
        NETCON_close(&lpwhr->netConnection);

    do
    {
        char buffer[2048];
        if (!INTERNET_ReadFile(&lpwhr->hdr, buffer, sizeof(buffer), &bytes_read,
                               TRUE, FALSE))
            return;
    } while (bytes_read);
}

/***********************************************************************
 *           HttpEndRequestA (WININET.@)
 *
 * Ends an HTTP request that was started by HttpSendRequestEx
 *
 * RETURNS
 *    TRUE	if successful
 *    FALSE	on failure
 *
 */
BOOL WINAPI HttpEndRequestA(HINTERNET hRequest, 
        LPINTERNET_BUFFERSA lpBuffersOut, DWORD dwFlags, DWORD_PTR dwContext)
{
    LPINTERNET_BUFFERSA ptr;
    LPINTERNET_BUFFERSW lpBuffersOutW,ptrW;
    BOOL rc = FALSE;

    TRACE("(%p, %p, %08x, %08lx): stub\n", hRequest, lpBuffersOut, dwFlags,
            dwContext);

    ptr = lpBuffersOut;
    if (ptr)
        lpBuffersOutW = (LPINTERNET_BUFFERSW)HeapAlloc(GetProcessHeap(),
                HEAP_ZERO_MEMORY, sizeof(INTERNET_BUFFERSW));
    else
        lpBuffersOutW = NULL;

    ptrW = lpBuffersOutW;
    while (ptr)
    {
        if (ptr->lpvBuffer && ptr->dwBufferLength)
            ptrW->lpvBuffer = HeapAlloc(GetProcessHeap(),0,ptr->dwBufferLength);
        ptrW->dwBufferLength = ptr->dwBufferLength;
        ptrW->dwBufferTotal= ptr->dwBufferTotal;

        if (ptr->Next)
            ptrW->Next = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,
                    sizeof(INTERNET_BUFFERSW));

        ptr = ptr->Next;
        ptrW = ptrW->Next;
    }

    rc = HttpEndRequestW(hRequest, lpBuffersOutW, dwFlags, dwContext);

    if (lpBuffersOutW)
    {
        ptrW = lpBuffersOutW;
        while (ptrW)
        {
            LPINTERNET_BUFFERSW ptrW2;

            FIXME("Do we need to translate info out of these buffer?\n");

            HeapFree(GetProcessHeap(),0,(LPVOID)ptrW->lpvBuffer);
            ptrW2 = ptrW->Next;
            HeapFree(GetProcessHeap(),0,ptrW);
            ptrW = ptrW2;
        }
    }

    return rc;
}

/***********************************************************************
 *           HttpEndRequestW (WININET.@)
 *
 * Ends an HTTP request that was started by HttpSendRequestEx
 *
 * RETURNS
 *    TRUE	if successful
 *    FALSE	on failure
 *
 */
BOOL WINAPI HttpEndRequestW(HINTERNET hRequest, 
        LPINTERNET_BUFFERSW lpBuffersOut, DWORD dwFlags, DWORD_PTR dwContext)
{
    BOOL rc = FALSE;
    LPWININETHTTPREQW lpwhr;
    INT responseLen;
    DWORD dwBufferSize;

    TRACE("-->\n");
    lpwhr = (LPWININETHTTPREQW) WININET_GetObject( hRequest );

    if (NULL == lpwhr || lpwhr->hdr.htype != WH_HHTTPREQ)
    {
        INTERNET_SetLastError(ERROR_INTERNET_INCORRECT_HANDLE_TYPE);
        if (lpwhr)
            WININET_Release( &lpwhr->hdr );
    	return FALSE;
    }

    lpwhr->hdr.dwFlags |= dwFlags;
    lpwhr->hdr.dwContext = dwContext;

    /* We appear to do nothing with lpBuffersOut.. is that correct? */

    SendAsyncCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
            INTERNET_STATUS_RECEIVING_RESPONSE, NULL, 0);

    responseLen = HTTP_GetResponseHeaders(lpwhr);
    if (responseLen)
	    rc = TRUE;

    SendAsyncCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
            INTERNET_STATUS_RESPONSE_RECEIVED, &responseLen, sizeof(DWORD));

    /* process headers here. Is this right? */
    HTTP_ProcessHeaders(lpwhr);

    dwBufferSize = sizeof(lpwhr->dwContentLength);
    if (!HTTP_HttpQueryInfoW(lpwhr,HTTP_QUERY_FLAG_NUMBER|HTTP_QUERY_CONTENT_LENGTH,
                             &lpwhr->dwContentLength,&dwBufferSize,NULL))
        lpwhr->dwContentLength = -1;

    if (lpwhr->dwContentLength == 0)
        HTTP_FinishedReading(lpwhr);

    if(!(lpwhr->hdr.dwFlags & INTERNET_FLAG_NO_AUTO_REDIRECT))
    {
        DWORD dwCode,dwCodeLength=sizeof(DWORD);
        if(HTTP_HttpQueryInfoW(lpwhr,HTTP_QUERY_FLAG_NUMBER|HTTP_QUERY_STATUS_CODE,&dwCode,&dwCodeLength,NULL) &&
            (dwCode==302 || dwCode==301))
        {
            WCHAR szNewLocation[2048];
            dwBufferSize=sizeof(szNewLocation);
            if(HTTP_HttpQueryInfoW(lpwhr,HTTP_QUERY_LOCATION,szNewLocation,&dwBufferSize,NULL))
            {
	            static const WCHAR szGET[] = { 'G','E','T', 0 };
                /* redirects are always GETs */
                HeapFree(GetProcessHeap(),0,lpwhr->lpszVerb);
	            lpwhr->lpszVerb = WININET_strdupW(szGET);
                HTTP_DrainContent(lpwhr);
                rc = HTTP_HandleRedirect(lpwhr, szNewLocation);
                if (rc)
                    rc = HTTP_HttpSendRequestW(lpwhr, NULL, 0, NULL, 0, 0, TRUE);
            }
        }
    }

    WININET_Release( &lpwhr->hdr );
    TRACE("%i <--\n",rc);
    return rc;
}

/***********************************************************************
 *           HttpOpenRequestW (WININET.@)
 *
 * Open a HTTP request handle
 *
 * RETURNS
 *    HINTERNET  a HTTP request handle on success
 *    NULL 	 on failure
 *
 */
HINTERNET WINAPI HttpOpenRequestW(HINTERNET hHttpSession,
	LPCWSTR lpszVerb, LPCWSTR lpszObjectName, LPCWSTR lpszVersion,
	LPCWSTR lpszReferrer , LPCWSTR *lpszAcceptTypes,
	DWORD dwFlags, DWORD_PTR dwContext)
{
    LPWININETHTTPSESSIONW lpwhs;
    HINTERNET handle = NULL;

    TRACE("(%p, %s, %s, %s, %s, %p, %08x, %08lx)\n", hHttpSession,
          debugstr_w(lpszVerb), debugstr_w(lpszObjectName),
          debugstr_w(lpszVersion), debugstr_w(lpszReferrer), lpszAcceptTypes,
          dwFlags, dwContext);
    if(lpszAcceptTypes!=NULL)
    {
        int i;
        for(i=0;lpszAcceptTypes[i]!=NULL;i++)
            TRACE("\taccept type: %s\n",debugstr_w(lpszAcceptTypes[i]));
    }    

    lpwhs = (LPWININETHTTPSESSIONW) WININET_GetObject( hHttpSession );
    if (NULL == lpwhs ||  lpwhs->hdr.htype != WH_HHTTPSESSION)
    {
        INTERNET_SetLastError(ERROR_INTERNET_INCORRECT_HANDLE_TYPE);
	goto lend;
    }

    /*
     * My tests seem to show that the windows version does not
     * become asynchronous until after this point. And anyhow
     * if this call was asynchronous then how would you get the
     * necessary HINTERNET pointer returned by this function.
     *
     */
    handle = HTTP_HttpOpenRequestW(lpwhs, lpszVerb, lpszObjectName,
                                   lpszVersion, lpszReferrer, lpszAcceptTypes,
                                   dwFlags, dwContext);
lend:
    if( lpwhs )
        WININET_Release( &lpwhs->hdr );
    TRACE("returning %p\n", handle);
    return handle;
}


/***********************************************************************
 *           HttpOpenRequestA (WININET.@)
 *
 * Open a HTTP request handle
 *
 * RETURNS
 *    HINTERNET  a HTTP request handle on success
 *    NULL 	 on failure
 *
 */
HINTERNET WINAPI HttpOpenRequestA(HINTERNET hHttpSession,
	LPCSTR lpszVerb, LPCSTR lpszObjectName, LPCSTR lpszVersion,
	LPCSTR lpszReferrer , LPCSTR *lpszAcceptTypes,
	DWORD dwFlags, DWORD_PTR dwContext)
{
    LPWSTR szVerb = NULL, szObjectName = NULL;
    LPWSTR szVersion = NULL, szReferrer = NULL, *szAcceptTypes = NULL;
    INT len;
    INT acceptTypesCount;
    HINTERNET rc = FALSE;
    TRACE("(%p, %s, %s, %s, %s, %p, %08x, %08lx)\n", hHttpSession,
          debugstr_a(lpszVerb), debugstr_a(lpszObjectName),
          debugstr_a(lpszVersion), debugstr_a(lpszReferrer), lpszAcceptTypes,
          dwFlags, dwContext);

    if (lpszVerb)
    {
        len = MultiByteToWideChar(CP_ACP, 0, lpszVerb, -1, NULL, 0 );
        szVerb = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR) );
        if ( !szVerb )
            goto end;
        MultiByteToWideChar(CP_ACP, 0, lpszVerb, -1, szVerb, len);
    }

    if (lpszObjectName)
    {
        len = MultiByteToWideChar(CP_ACP, 0, lpszObjectName, -1, NULL, 0 );
        szObjectName = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR) );
        if ( !szObjectName )
            goto end;
        MultiByteToWideChar(CP_ACP, 0, lpszObjectName, -1, szObjectName, len );
    }

    if (lpszVersion)
    {
        len = MultiByteToWideChar(CP_ACP, 0, lpszVersion, -1, NULL, 0 );
        szVersion = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
        if ( !szVersion )
            goto end;
        MultiByteToWideChar(CP_ACP, 0, lpszVersion, -1, szVersion, len );
    }

    if (lpszReferrer)
    {
        len = MultiByteToWideChar(CP_ACP, 0, lpszReferrer, -1, NULL, 0 );
        szReferrer = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
        if ( !szReferrer )
            goto end;
        MultiByteToWideChar(CP_ACP, 0, lpszReferrer, -1, szReferrer, len );
    }

    acceptTypesCount = 0;
    if (lpszAcceptTypes)
    {
        /* find out how many there are */
        while (lpszAcceptTypes[acceptTypesCount] && *lpszAcceptTypes[acceptTypesCount])
            acceptTypesCount++;
        szAcceptTypes = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR *) * (acceptTypesCount+1));
        acceptTypesCount = 0;
        while (lpszAcceptTypes[acceptTypesCount] && *lpszAcceptTypes[acceptTypesCount])
        {
            len = MultiByteToWideChar(CP_ACP, 0, lpszAcceptTypes[acceptTypesCount],
                                -1, NULL, 0 );
            szAcceptTypes[acceptTypesCount] = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
            if (!szAcceptTypes[acceptTypesCount] )
                goto end;
            MultiByteToWideChar(CP_ACP, 0, lpszAcceptTypes[acceptTypesCount],
                                -1, szAcceptTypes[acceptTypesCount], len );
            acceptTypesCount++;
        }
        szAcceptTypes[acceptTypesCount] = NULL;
    }
    else szAcceptTypes = 0;

    rc = HttpOpenRequestW(hHttpSession, szVerb, szObjectName,
                          szVersion, szReferrer,
                          (LPCWSTR*)szAcceptTypes, dwFlags, dwContext);

end:
    if (szAcceptTypes)
    {
        acceptTypesCount = 0;
        while (szAcceptTypes[acceptTypesCount])
        {
            HeapFree(GetProcessHeap(), 0, szAcceptTypes[acceptTypesCount]);
            acceptTypesCount++;
        }
        HeapFree(GetProcessHeap(), 0, szAcceptTypes);
    }
    HeapFree(GetProcessHeap(), 0, szReferrer);
    HeapFree(GetProcessHeap(), 0, szVersion);
    HeapFree(GetProcessHeap(), 0, szObjectName);
    HeapFree(GetProcessHeap(), 0, szVerb);

    return rc;
}

/***********************************************************************
 *  HTTP_EncodeBase64
 */
static UINT HTTP_EncodeBase64( LPCSTR bin, unsigned int len, LPWSTR base64 )
{
    UINT n = 0, x;
    static const CHAR HTTP_Base64Enc[] =
        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

    while( len > 0 )
    {
        /* first 6 bits, all from bin[0] */
        base64[n++] = HTTP_Base64Enc[(bin[0] & 0xfc) >> 2];
        x = (bin[0] & 3) << 4;

        /* next 6 bits, 2 from bin[0] and 4 from bin[1] */
        if( len == 1 )
        {
            base64[n++] = HTTP_Base64Enc[x];
            base64[n++] = '=';
            base64[n++] = '=';
            break;
        }
        base64[n++] = HTTP_Base64Enc[ x | ( (bin[1]&0xf0) >> 4 ) ];
        x = ( bin[1] & 0x0f ) << 2;

        /* next 6 bits 4 from bin[1] and 2 from bin[2] */
        if( len == 2 )
        {
            base64[n++] = HTTP_Base64Enc[x];
            base64[n++] = '=';
            break;
        }
        base64[n++] = HTTP_Base64Enc[ x | ( (bin[2]&0xc0 ) >> 6 ) ];

        /* last 6 bits, all from bin [2] */
        base64[n++] = HTTP_Base64Enc[ bin[2] & 0x3f ];
        bin += 3;
        len -= 3;
    }
    base64[n] = 0;
    return n;
}

#define CH(x) (((x) >= 'A' && (x) <= 'Z') ? (x) - 'A' : \
               ((x) >= 'a' && (x) <= 'z') ? (x) - 'a' + 26 : \
               ((x) >= '0' && (x) <= '9') ? (x) - '0' + 52 : \
               ((x) == '+') ? 62 : ((x) == '/') ? 63 : -1)
static const signed char HTTP_Base64Dec[256] =
{
    CH( 0),CH( 1),CH( 2),CH( 3),CH( 4),CH( 5),CH( 6),CH( 7),CH( 8),CH( 9),
    CH(10),CH(11),CH(12),CH(13),CH(14),CH(15),CH(16),CH(17),CH(18),CH(19),
    CH(20),CH(21),CH(22),CH(23),CH(24),CH(25),CH(26),CH(27),CH(28),CH(29),
    CH(30),CH(31),CH(32),CH(33),CH(34),CH(35),CH(36),CH(37),CH(38),CH(39),
    CH(40),CH(41),CH(42),CH(43),CH(44),CH(45),CH(46),CH(47),CH(48),CH(49),
    CH(50),CH(51),CH(52),CH(53),CH(54),CH(55),CH(56),CH(57),CH(58),CH(59),
    CH(60),CH(61),CH(62),CH(63),CH(64),CH(65),CH(66),CH(67),CH(68),CH(69),
    CH(70),CH(71),CH(72),CH(73),CH(74),CH(75),CH(76),CH(77),CH(78),CH(79),
    CH(80),CH(81),CH(82),CH(83),CH(84),CH(85),CH(86),CH(87),CH(88),CH(89),
    CH(90),CH(91),CH(92),CH(93),CH(94),CH(95),CH(96),CH(97),CH(98),CH(99),
    CH(100),CH(101),CH(102),CH(103),CH(104),CH(105),CH(106),CH(107),CH(108),CH(109),
    CH(110),CH(111),CH(112),CH(113),CH(114),CH(115),CH(116),CH(117),CH(118),CH(119),
    CH(120),CH(121),CH(122),CH(123),CH(124),CH(125),CH(126),CH(127),CH(128),CH(129),
    CH(130),CH(131),CH(132),CH(133),CH(134),CH(135),CH(136),CH(137),CH(138),CH(139),
    CH(140),CH(141),CH(142),CH(143),CH(144),CH(145),CH(146),CH(147),CH(148),CH(149),
    CH(150),CH(151),CH(152),CH(153),CH(154),CH(155),CH(156),CH(157),CH(158),CH(159),
    CH(160),CH(161),CH(162),CH(163),CH(164),CH(165),CH(166),CH(167),CH(168),CH(169),
    CH(170),CH(171),CH(172),CH(173),CH(174),CH(175),CH(176),CH(177),CH(178),CH(179),
    CH(180),CH(181),CH(182),CH(183),CH(184),CH(185),CH(186),CH(187),CH(188),CH(189),
    CH(190),CH(191),CH(192),CH(193),CH(194),CH(195),CH(196),CH(197),CH(198),CH(199),
    CH(200),CH(201),CH(202),CH(203),CH(204),CH(205),CH(206),CH(207),CH(208),CH(209),
    CH(210),CH(211),CH(212),CH(213),CH(214),CH(215),CH(216),CH(217),CH(218),CH(219),
    CH(220),CH(221),CH(222),CH(223),CH(224),CH(225),CH(226),CH(227),CH(228),CH(229),
    CH(230),CH(231),CH(232),CH(233),CH(234),CH(235),CH(236),CH(237),CH(238),CH(239),
    CH(240),CH(241),CH(242),CH(243),CH(244),CH(245),CH(246),CH(247),CH(248), CH(249),
    CH(250),CH(251),CH(252),CH(253),CH(254),CH(255),
};
#undef CH

/***********************************************************************
 *  HTTP_DecodeBase64
 */
static UINT HTTP_DecodeBase64( LPCWSTR base64, LPSTR bin )
{
    unsigned int n = 0;

    while(*base64)
    {
        signed char in[4];

        if (base64[0] > ARRAYSIZE(HTTP_Base64Dec) ||
            ((in[0] = HTTP_Base64Dec[base64[0]]) == -1) ||
            base64[1] > ARRAYSIZE(HTTP_Base64Dec) ||
            ((in[1] = HTTP_Base64Dec[base64[1]]) == -1))
        {
            WARN("invalid base64: %s\n", debugstr_w(base64));
            return 0;
        }
        if (bin)
            bin[n] = (unsigned char) (in[0] << 2 | in[1] >> 4);
        n++;

        if ((base64[2] == '=') && (base64[3] == '='))
            break;
        if (base64[2] > ARRAYSIZE(HTTP_Base64Dec) ||
            ((in[2] = HTTP_Base64Dec[base64[2]]) == -1))
        {
            WARN("invalid base64: %s\n", debugstr_w(&base64[2]));
            return 0;
        }
        if (bin)
            bin[n] = (unsigned char) (in[1] << 4 | in[2] >> 2);
        n++;

        if (base64[3] == '=')
            break;
        if (base64[3] > ARRAYSIZE(HTTP_Base64Dec) ||
            ((in[3] = HTTP_Base64Dec[base64[3]]) == -1))
        {
            WARN("invalid base64: %s\n", debugstr_w(&base64[3]));
            return 0;
        }
        if (bin)
            bin[n] = (unsigned char) (((in[2] << 6) & 0xc0) | in[3]);
        n++;

        base64 += 4;
    }

    return n;
}

/***********************************************************************
 *  HTTP_InsertAuthorizationForHeader
 *
 *   Insert or delete the authorization field in the request header.
 */
static BOOL HTTP_InsertAuthorizationForHeader( LPWININETHTTPREQW lpwhr, struct HttpAuthInfo *pAuthInfo, LPCWSTR header )
{
    WCHAR *authorization = NULL;

    if (pAuthInfo && pAuthInfo->auth_data_len)
    {
        static const WCHAR wszSpace[] = {' ',0};
        static const WCHAR wszBasic[] = {'B','a','s','i','c',0};
        unsigned int len;

        /* scheme + space + base64 encoded data (3/2/1 bytes data -> 4 bytes of characters) */
        len = strlenW(pAuthInfo->scheme)+1+((pAuthInfo->auth_data_len+2)*4)/3;
        authorization = HeapAlloc(GetProcessHeap(), 0, (len+1)*sizeof(WCHAR));
        if (!authorization)
            return FALSE;

        strcpyW(authorization, pAuthInfo->scheme);
        strcatW(authorization, wszSpace);
        HTTP_EncodeBase64(pAuthInfo->auth_data,
                          pAuthInfo->auth_data_len,
                          authorization+strlenW(authorization));

        /* clear the data as it isn't valid now that it has been sent to the
         * server, unless it's Basic authentication which doesn't do
         * connection tracking */
        if (strcmpiW(pAuthInfo->scheme, wszBasic))
        {
            HeapFree(GetProcessHeap(), 0, pAuthInfo->auth_data);
            pAuthInfo->auth_data = NULL;
            pAuthInfo->auth_data_len = 0;
        }
    }

    TRACE("Inserting authorization: %s\n", debugstr_w(authorization));

    HTTP_ProcessHeader(lpwhr, header, authorization,
                       HTTP_ADDHDR_FLAG_REPLACE | HTTP_ADDHDR_FLAG_REQ);

    HeapFree(GetProcessHeap(), 0, authorization);

    return TRUE;
}

/***********************************************************************
 *  HTTP_InsertAuthorization
 *
 *   Insert the authorization field in the request header
 */
static BOOL HTTP_InsertAuthorization( LPWININETHTTPREQW lpwhr )
{
    return HTTP_InsertAuthorizationForHeader(lpwhr, lpwhr->pAuthInfo, szAuthorization);
}

/***********************************************************************
 *  HTTP_InsertProxyAuthorization
 *
 *   Insert the proxy authorization field in the request header
 */
static BOOL HTTP_InsertProxyAuthorization( LPWININETHTTPREQW lpwhr )
{
    return HTTP_InsertAuthorizationForHeader(lpwhr, lpwhr->pProxyAuthInfo, szProxy_Authorization);
}

/***********************************************************************
 *           HTTP_DealWithProxy
 */
static BOOL HTTP_DealWithProxy( LPWININETAPPINFOW hIC,
    LPWININETHTTPSESSIONW lpwhs, LPWININETHTTPREQW lpwhr)
{
    WCHAR buf[MAXHOSTNAME];
    WCHAR proxy[MAXHOSTNAME + 15]; /* 15 == "http://" + sizeof(port#) + ":/\0" */
    WCHAR* url;
    static WCHAR szNul[] = { 0 };
    URL_COMPONENTSW UrlComponents;
    static const WCHAR szHttp[] = { 'h','t','t','p',':','/','/',0 }, szSlash[] = { '/',0 } ;
    static const WCHAR szFormat1[] = { 'h','t','t','p',':','/','/','%','s',0 };
    static const WCHAR szFormat2[] = { 'h','t','t','p',':','/','/','%','s',':','%','d',0 };
    int len;

    memset( &UrlComponents, 0, sizeof UrlComponents );
    UrlComponents.dwStructSize = sizeof UrlComponents;
    UrlComponents.lpszHostName = buf;
    UrlComponents.dwHostNameLength = MAXHOSTNAME;

    if( CSTR_EQUAL != CompareStringW(LOCALE_SYSTEM_DEFAULT, NORM_IGNORECASE,
                                 hIC->lpszProxy,strlenW(szHttp),szHttp,strlenW(szHttp)) )
        sprintfW(proxy, szFormat1, hIC->lpszProxy);
    else
	strcpyW(proxy, hIC->lpszProxy);
    if( !InternetCrackUrlW(proxy, 0, 0, &UrlComponents) )
        return FALSE;
    if( UrlComponents.dwHostNameLength == 0 )
        return FALSE;

    if( !lpwhr->lpszPath )
        lpwhr->lpszPath = szNul;
    TRACE("server=%s path=%s\n",
          debugstr_w(lpwhs->lpszHostName), debugstr_w(lpwhr->lpszPath));
    /* for constant 15 see above */
    len = strlenW(lpwhs->lpszHostName) + strlenW(lpwhr->lpszPath) + 15;
    url = HeapAlloc(GetProcessHeap(), 0, len*sizeof(WCHAR));

    if(UrlComponents.nPort == INTERNET_INVALID_PORT_NUMBER)
        UrlComponents.nPort = INTERNET_DEFAULT_HTTP_PORT;

    sprintfW(url, szFormat2, lpwhs->lpszHostName, lpwhs->nHostPort);

    if( lpwhr->lpszPath[0] != '/' )
        strcatW( url, szSlash );
    strcatW(url, lpwhr->lpszPath);
    if(lpwhr->lpszPath != szNul)
        HeapFree(GetProcessHeap(), 0, lpwhr->lpszPath);
    lpwhr->lpszPath = url;

    HeapFree(GetProcessHeap(), 0, lpwhs->lpszServerName);
    lpwhs->lpszServerName = WININET_strdupW(UrlComponents.lpszHostName);
    lpwhs->nServerPort = UrlComponents.nPort;

    return TRUE;
}

static BOOL HTTP_ResolveName(LPWININETHTTPREQW lpwhr)
{
    char szaddr[32];
    LPWININETHTTPSESSIONW lpwhs = lpwhr->lpHttpSession;

    INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                          INTERNET_STATUS_RESOLVING_NAME,
                          lpwhs->lpszServerName,
                          strlenW(lpwhs->lpszServerName)+1);

    if (!GetAddress(lpwhs->lpszServerName, lpwhs->nServerPort,
                    &lpwhs->socketAddress))
    {
        INTERNET_SetLastError(ERROR_INTERNET_NAME_NOT_RESOLVED);
        return FALSE;
    }

    inet_ntop(lpwhs->socketAddress.sin_family, &lpwhs->socketAddress.sin_addr,
              szaddr, sizeof(szaddr));
    INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                          INTERNET_STATUS_NAME_RESOLVED,
                          szaddr, strlen(szaddr)+1);
    return TRUE;
}

/***********************************************************************
 *           HTTP_HttpOpenRequestW (internal)
 *
 * Open a HTTP request handle
 *
 * RETURNS
 *    HINTERNET  a HTTP request handle on success
 *    NULL 	 on failure
 *
 */
HINTERNET WINAPI HTTP_HttpOpenRequestW(LPWININETHTTPSESSIONW lpwhs,
	LPCWSTR lpszVerb, LPCWSTR lpszObjectName, LPCWSTR lpszVersion,
	LPCWSTR lpszReferrer , LPCWSTR *lpszAcceptTypes,
	DWORD dwFlags, DWORD_PTR dwContext)
{
    LPWININETAPPINFOW hIC = NULL;
    LPWININETHTTPREQW lpwhr;
    LPWSTR lpszCookies;
    LPWSTR lpszUrl = NULL;
    DWORD nCookieSize;
    HINTERNET handle = NULL;
    static const WCHAR szUrlForm[] = {'h','t','t','p',':','/','/','%','s',0};
    DWORD len;
    LPHTTPHEADERW Host;

    TRACE("-->\n");

    assert( lpwhs->hdr.htype == WH_HHTTPSESSION );
    hIC = lpwhs->lpAppInfo;

    lpwhr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WININETHTTPREQW));
    if (NULL == lpwhr)
    {
        INTERNET_SetLastError(ERROR_OUTOFMEMORY);
        goto lend;
    }
    lpwhr->hdr.htype = WH_HHTTPREQ;
    lpwhr->hdr.dwFlags = dwFlags;
    lpwhr->hdr.dwContext = dwContext;
    lpwhr->hdr.dwRefCount = 1;
    lpwhr->hdr.close_connection = HTTP_CloseConnection;
    lpwhr->hdr.destroy = HTTP_CloseHTTPRequestHandle;
    lpwhr->hdr.lpfnStatusCB = lpwhs->hdr.lpfnStatusCB;
    lpwhr->hdr.dwInternalFlags = lpwhs->hdr.dwInternalFlags & INET_CALLBACKW;

    WININET_AddRef( &lpwhs->hdr );
    lpwhr->lpHttpSession = lpwhs;
    list_add_head( &lpwhs->hdr.children, &lpwhr->hdr.entry );

    handle = WININET_AllocHandle( &lpwhr->hdr );
    if (NULL == handle)
    {
        INTERNET_SetLastError(ERROR_OUTOFMEMORY);
        goto lend;
    }

    if (!NETCON_init(&lpwhr->netConnection, dwFlags & INTERNET_FLAG_SECURE))
    {
        InternetCloseHandle( handle );
        handle = NULL;
        goto lend;
    }

    if (NULL != lpszObjectName && strlenW(lpszObjectName)) {
        HRESULT rc;

        len = 0;
        rc = UrlEscapeW(lpszObjectName, NULL, &len, URL_ESCAPE_SPACES_ONLY);
        if (rc != E_POINTER)
            len = strlenW(lpszObjectName)+1;
        lpwhr->lpszPath = HeapAlloc(GetProcessHeap(), 0, len*sizeof(WCHAR));
        rc = UrlEscapeW(lpszObjectName, lpwhr->lpszPath, &len,
                   URL_ESCAPE_SPACES_ONLY);
        if (rc)
        {
            ERR("Unable to escape string!(%s) (%d)\n",debugstr_w(lpszObjectName),rc);
            strcpyW(lpwhr->lpszPath,lpszObjectName);
        }
    }

    if (NULL != lpszReferrer && strlenW(lpszReferrer))
        HTTP_ProcessHeader(lpwhr, HTTP_REFERER, lpszReferrer, HTTP_ADDREQ_FLAG_ADD | HTTP_ADDHDR_FLAG_REQ);

    if (lpszAcceptTypes)
    {
        int i;
        for (i = 0; lpszAcceptTypes[i]; i++)
        {
            if (!*lpszAcceptTypes[i]) continue;
            HTTP_ProcessHeader(lpwhr, HTTP_ACCEPT, lpszAcceptTypes[i],
                               HTTP_ADDHDR_FLAG_COALESCE_WITH_COMMA |
                               HTTP_ADDHDR_FLAG_REQ |
                               (i == 0 ? HTTP_ADDHDR_FLAG_REPLACE : 0));
        }
    }

    if (NULL == lpszVerb)
    {
        static const WCHAR szGet[] = {'G','E','T',0};
        lpwhr->lpszVerb = WININET_strdupW(szGet);
    }
    else if (strlenW(lpszVerb))
        lpwhr->lpszVerb = WININET_strdupW(lpszVerb);

    HTTP_ProcessHeader(lpwhr, szHost, lpwhs->lpszHostName, HTTP_ADDREQ_FLAG_ADD | HTTP_ADDHDR_FLAG_REQ);

    if (lpwhs->nServerPort == INTERNET_INVALID_PORT_NUMBER)
        lpwhs->nServerPort = (dwFlags & INTERNET_FLAG_SECURE ?
                        INTERNET_DEFAULT_HTTPS_PORT :
                        INTERNET_DEFAULT_HTTP_PORT);
    lpwhs->nHostPort = lpwhs->nServerPort;

    if (NULL != hIC->lpszProxy && hIC->lpszProxy[0] != 0)
        HTTP_DealWithProxy( hIC, lpwhs, lpwhr );

    if (hIC->lpszAgent)
    {
        WCHAR *agent_header;
        static const WCHAR user_agent[] = {'U','s','e','r','-','A','g','e','n','t',':',' ','%','s','\r','\n',0 };

        len = strlenW(hIC->lpszAgent) + strlenW(user_agent);
        agent_header = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
        sprintfW(agent_header, user_agent, hIC->lpszAgent );

        HTTP_HttpAddRequestHeadersW(lpwhr, agent_header, strlenW(agent_header),
                               HTTP_ADDREQ_FLAG_ADD);
        HeapFree(GetProcessHeap(), 0, agent_header);
    }

    Host = HTTP_GetHeader(lpwhr,szHost);

    len = lstrlenW(Host->lpszValue) + strlenW(szUrlForm);
    lpszUrl = HeapAlloc(GetProcessHeap(), 0, len*sizeof(WCHAR));
    sprintfW( lpszUrl, szUrlForm, Host->lpszValue );

    if (!(lpwhr->hdr.dwFlags & INTERNET_FLAG_NO_COOKIES) &&
        InternetGetCookieW(lpszUrl, NULL, NULL, &nCookieSize))
    {
        int cnt = 0;
        static const WCHAR szCookie[] = {'C','o','o','k','i','e',':',' ',0};
        static const WCHAR szcrlf[] = {'\r','\n',0};

        lpszCookies = HeapAlloc(GetProcessHeap(), 0, (nCookieSize + 1 + 8)*sizeof(WCHAR));

        cnt += sprintfW(lpszCookies, szCookie);
        InternetGetCookieW(lpszUrl, NULL, lpszCookies + cnt, &nCookieSize);
        strcatW(lpszCookies, szcrlf);

        HTTP_HttpAddRequestHeadersW(lpwhr, lpszCookies, strlenW(lpszCookies),
                               HTTP_ADDREQ_FLAG_ADD);
        HeapFree(GetProcessHeap(), 0, lpszCookies);
    }
    HeapFree(GetProcessHeap(), 0, lpszUrl);


    INTERNET_SendCallback(&lpwhs->hdr, dwContext,
                          INTERNET_STATUS_HANDLE_CREATED, &handle,
                          sizeof(handle));

    /*
     * A STATUS_REQUEST_COMPLETE is NOT sent here as per my tests on windows
     */

    if (!HTTP_ResolveName(lpwhr))
    {
        InternetCloseHandle( handle );
        handle = NULL;
    }

lend:
    if( lpwhr )
        WININET_Release( &lpwhr->hdr );

    TRACE("<-- %p (%p)\n", handle, lpwhr);
    return handle;
}

static const WCHAR szAccept[] = { 'A','c','c','e','p','t',0 };
static const WCHAR szAccept_Charset[] = { 'A','c','c','e','p','t','-','C','h','a','r','s','e','t', 0 };
static const WCHAR szAccept_Encoding[] = { 'A','c','c','e','p','t','-','E','n','c','o','d','i','n','g',0 };
static const WCHAR szAccept_Language[] = { 'A','c','c','e','p','t','-','L','a','n','g','u','a','g','e',0 };
static const WCHAR szAccept_Ranges[] = { 'A','c','c','e','p','t','-','R','a','n','g','e','s',0 };
static const WCHAR szAge[] = { 'A','g','e',0 };
static const WCHAR szAllow[] = { 'A','l','l','o','w',0 };
static const WCHAR szCache_Control[] = { 'C','a','c','h','e','-','C','o','n','t','r','o','l',0 };
static const WCHAR szConnection[] = { 'C','o','n','n','e','c','t','i','o','n',0 };
static const WCHAR szContent_Base[] = { 'C','o','n','t','e','n','t','-','B','a','s','e',0 };
static const WCHAR szContent_Encoding[] = { 'C','o','n','t','e','n','t','-','E','n','c','o','d','i','n','g',0 };
static const WCHAR szContent_ID[] = { 'C','o','n','t','e','n','t','-','I','D',0 };
static const WCHAR szContent_Language[] = { 'C','o','n','t','e','n','t','-','L','a','n','g','u','a','g','e',0 };
static const WCHAR szContent_Length[] = { 'C','o','n','t','e','n','t','-','L','e','n','g','t','h',0 };
static const WCHAR szContent_Location[] = { 'C','o','n','t','e','n','t','-','L','o','c','a','t','i','o','n',0 };
static const WCHAR szContent_MD5[] = { 'C','o','n','t','e','n','t','-','M','D','5',0 };
static const WCHAR szContent_Range[] = { 'C','o','n','t','e','n','t','-','R','a','n','g','e',0 };
static const WCHAR szContent_Transfer_Encoding[] = { 'C','o','n','t','e','n','t','-','T','r','a','n','s','f','e','r','-','E','n','c','o','d','i','n','g',0 };
static const WCHAR szContent_Type[] = { 'C','o','n','t','e','n','t','-','T','y','p','e',0 };
static const WCHAR szCookie[] = { 'C','o','o','k','i','e',0 };
static const WCHAR szDate[] = { 'D','a','t','e',0 };
static const WCHAR szFrom[] = { 'F','r','o','m',0 };
static const WCHAR szETag[] = { 'E','T','a','g',0 };
static const WCHAR szExpect[] = { 'E','x','p','e','c','t',0 };
static const WCHAR szExpires[] = { 'E','x','p','i','r','e','s',0 };
static const WCHAR szIf_Match[] = { 'I','f','-','M','a','t','c','h',0 };
static const WCHAR szIf_Modified_Since[] = { 'I','f','-','M','o','d','i','f','i','e','d','-','S','i','n','c','e',0 };
static const WCHAR szIf_None_Match[] = { 'I','f','-','N','o','n','e','-','M','a','t','c','h',0 };
static const WCHAR szIf_Range[] = { 'I','f','-','R','a','n','g','e',0 };
static const WCHAR szIf_Unmodified_Since[] = { 'I','f','-','U','n','m','o','d','i','f','i','e','d','-','S','i','n','c','e',0 };
static const WCHAR szLast_Modified[] = { 'L','a','s','t','-','M','o','d','i','f','i','e','d',0 };
static const WCHAR szLocation[] = { 'L','o','c','a','t','i','o','n',0 };
static const WCHAR szMax_Forwards[] = { 'M','a','x','-','F','o','r','w','a','r','d','s',0 };
static const WCHAR szMime_Version[] = { 'M','i','m','e','-','V','e','r','s','i','o','n',0 };
static const WCHAR szPragma[] = { 'P','r','a','g','m','a',0 };
static const WCHAR szProxy_Authenticate[] = { 'P','r','o','x','y','-','A','u','t','h','e','n','t','i','c','a','t','e',0 };
static const WCHAR szProxy_Connection[] = { 'P','r','o','x','y','-','C','o','n','n','e','c','t','i','o','n',0 };
static const WCHAR szPublic[] = { 'P','u','b','l','i','c',0 };
static const WCHAR szRange[] = { 'R','a','n','g','e',0 };
static const WCHAR szReferer[] = { 'R','e','f','e','r','e','r',0 };
static const WCHAR szRetry_After[] = { 'R','e','t','r','y','-','A','f','t','e','r',0 };
static const WCHAR szServer[] = { 'S','e','r','v','e','r',0 };
static const WCHAR szSet_Cookie[] = { 'S','e','t','-','C','o','o','k','i','e',0 };
static const WCHAR szTransfer_Encoding[] = { 'T','r','a','n','s','f','e','r','-','E','n','c','o','d','i','n','g',0 };
static const WCHAR szUnless_Modified_Since[] = { 'U','n','l','e','s','s','-','M','o','d','i','f','i','e','d','-','S','i','n','c','e',0 };
static const WCHAR szUpgrade[] = { 'U','p','g','r','a','d','e',0 };
static const WCHAR szURI[] = { 'U','R','I',0 };
static const WCHAR szUser_Agent[] = { 'U','s','e','r','-','A','g','e','n','t',0 };
static const WCHAR szVary[] = { 'V','a','r','y',0 };
static const WCHAR szVia[] = { 'V','i','a',0 };
static const WCHAR szWarning[] = { 'W','a','r','n','i','n','g',0 };
static const WCHAR szWWW_Authenticate[] = { 'W','W','W','-','A','u','t','h','e','n','t','i','c','a','t','e',0 };

static const LPCWSTR header_lookup[] = {
    szMime_Version,		/* HTTP_QUERY_MIME_VERSION = 0 */
    szContent_Type,		/* HTTP_QUERY_CONTENT_TYPE = 1 */
    szContent_Transfer_Encoding,/* HTTP_QUERY_CONTENT_TRANSFER_ENCODING = 2 */
    szContent_ID,		/* HTTP_QUERY_CONTENT_ID = 3 */
    NULL,			/* HTTP_QUERY_CONTENT_DESCRIPTION = 4 */
    szContent_Length,		/* HTTP_QUERY_CONTENT_LENGTH =  5 */
    szContent_Language,		/* HTTP_QUERY_CONTENT_LANGUAGE =  6 */
    szAllow,			/* HTTP_QUERY_ALLOW = 7 */
    szPublic,			/* HTTP_QUERY_PUBLIC = 8 */
    szDate,			/* HTTP_QUERY_DATE = 9 */
    szExpires,			/* HTTP_QUERY_EXPIRES = 10 */
    szLast_Modified,		/* HTTP_QUERY_LAST_MODIFIED = 11 */
    NULL,			/* HTTP_QUERY_MESSAGE_ID = 12 */
    szURI,			/* HTTP_QUERY_URI = 13 */
    szFrom,			/* HTTP_QUERY_DERIVED_FROM = 14 */
    NULL,			/* HTTP_QUERY_COST = 15 */
    NULL,			/* HTTP_QUERY_LINK = 16 */
    szPragma,			/* HTTP_QUERY_PRAGMA = 17 */
    NULL,			/* HTTP_QUERY_VERSION = 18 */
    szStatus,			/* HTTP_QUERY_STATUS_CODE = 19 */
    NULL,			/* HTTP_QUERY_STATUS_TEXT = 20 */
    NULL,			/* HTTP_QUERY_RAW_HEADERS = 21 */
    NULL,			/* HTTP_QUERY_RAW_HEADERS_CRLF = 22 */
    szConnection,		/* HTTP_QUERY_CONNECTION = 23 */
    szAccept,			/* HTTP_QUERY_ACCEPT = 24 */
    szAccept_Charset,		/* HTTP_QUERY_ACCEPT_CHARSET = 25 */
    szAccept_Encoding,		/* HTTP_QUERY_ACCEPT_ENCODING = 26 */
    szAccept_Language,		/* HTTP_QUERY_ACCEPT_LANGUAGE = 27 */
    szAuthorization,		/* HTTP_QUERY_AUTHORIZATION = 28 */
    szContent_Encoding,		/* HTTP_QUERY_CONTENT_ENCODING = 29 */
    NULL,			/* HTTP_QUERY_FORWARDED = 30 */
    NULL,			/* HTTP_QUERY_FROM = 31 */
    szIf_Modified_Since,	/* HTTP_QUERY_IF_MODIFIED_SINCE = 32 */
    szLocation,			/* HTTP_QUERY_LOCATION = 33 */
    NULL,			/* HTTP_QUERY_ORIG_URI = 34 */
    szReferer,			/* HTTP_QUERY_REFERER = 35 */
    szRetry_After,		/* HTTP_QUERY_RETRY_AFTER = 36 */
    szServer,			/* HTTP_QUERY_SERVER = 37 */
    NULL,			/* HTTP_TITLE = 38 */
    szUser_Agent,		/* HTTP_QUERY_USER_AGENT = 39 */
    szWWW_Authenticate,		/* HTTP_QUERY_WWW_AUTHENTICATE = 40 */
    szProxy_Authenticate,	/* HTTP_QUERY_PROXY_AUTHENTICATE = 41 */
    szAccept_Ranges,		/* HTTP_QUERY_ACCEPT_RANGES = 42 */
    szSet_Cookie,		/* HTTP_QUERY_SET_COOKIE = 43 */
    szCookie,			/* HTTP_QUERY_COOKIE = 44 */
    NULL,			/* HTTP_QUERY_REQUEST_METHOD = 45 */
    NULL,			/* HTTP_QUERY_REFRESH = 46 */
    NULL,			/* HTTP_QUERY_CONTENT_DISPOSITION = 47 */
    szAge,			/* HTTP_QUERY_AGE = 48 */
    szCache_Control,		/* HTTP_QUERY_CACHE_CONTROL = 49 */
    szContent_Base,		/* HTTP_QUERY_CONTENT_BASE = 50 */
    szContent_Location,		/* HTTP_QUERY_CONTENT_LOCATION = 51 */
    szContent_MD5,		/* HTTP_QUERY_CONTENT_MD5 = 52 */
    szContent_Range,		/* HTTP_QUERY_CONTENT_RANGE = 53 */
    szETag,			/* HTTP_QUERY_ETAG = 54 */
    szHost,			/* HTTP_QUERY_HOST = 55 */
    szIf_Match,			/* HTTP_QUERY_IF_MATCH = 56 */
    szIf_None_Match,		/* HTTP_QUERY_IF_NONE_MATCH = 57 */
    szIf_Range,			/* HTTP_QUERY_IF_RANGE = 58 */
    szIf_Unmodified_Since,	/* HTTP_QUERY_IF_UNMODIFIED_SINCE = 59 */
    szMax_Forwards,		/* HTTP_QUERY_MAX_FORWARDS = 60 */
    szProxy_Authorization,	/* HTTP_QUERY_PROXY_AUTHORIZATION = 61 */
    szRange,			/* HTTP_QUERY_RANGE = 62 */
    szTransfer_Encoding,	/* HTTP_QUERY_TRANSFER_ENCODING = 63 */
    szUpgrade,			/* HTTP_QUERY_UPGRADE = 64 */
    szVary,			/* HTTP_QUERY_VARY = 65 */
    szVia,			/* HTTP_QUERY_VIA = 66 */
    szWarning,			/* HTTP_QUERY_WARNING = 67 */
    szExpect,			/* HTTP_QUERY_EXPECT = 68 */
    szProxy_Connection,		/* HTTP_QUERY_PROXY_CONNECTION = 69 */
    szUnless_Modified_Since,	/* HTTP_QUERY_UNLESS_MODIFIED_SINCE = 70 */
};

#define LAST_TABLE_HEADER (sizeof(header_lookup)/sizeof(header_lookup[0]))

/***********************************************************************
 *           HTTP_HttpQueryInfoW (internal)
 */
static BOOL WINAPI HTTP_HttpQueryInfoW( LPWININETHTTPREQW lpwhr, DWORD dwInfoLevel,
	LPVOID lpBuffer, LPDWORD lpdwBufferLength, LPDWORD lpdwIndex)
{
    LPHTTPHEADERW lphttpHdr = NULL;
    BOOL bSuccess = FALSE;
    BOOL request_only = dwInfoLevel & HTTP_QUERY_FLAG_REQUEST_HEADERS;
    INT requested_index = lpdwIndex ? *lpdwIndex : 0;
    INT level = (dwInfoLevel & ~HTTP_QUERY_MODIFIER_FLAGS_MASK);
    INT index = -1;

    /* Find requested header structure */
    switch (level)
    {
    case HTTP_QUERY_CUSTOM:
        index = HTTP_GetCustomHeaderIndex(lpwhr, lpBuffer, requested_index, request_only);
        break;

    case HTTP_QUERY_RAW_HEADERS_CRLF:
        {
            LPWSTR headers;
            DWORD len;
            BOOL ret;

            if (request_only)
                headers = HTTP_BuildHeaderRequestString(lpwhr, lpwhr->lpszVerb, lpwhr->lpszPath, FALSE);
            else
                headers = lpwhr->lpszRawHeaders;

	    len = strlenW(headers);
            if (len + 1 > *lpdwBufferLength/sizeof(WCHAR))
            {
                *lpdwBufferLength = (len + 1) * sizeof(WCHAR);
                INTERNET_SetLastError(ERROR_INSUFFICIENT_BUFFER);
                ret = FALSE;
            } else
            {
                memcpy(lpBuffer, headers, (len+1)*sizeof(WCHAR));
                *lpdwBufferLength = len * sizeof(WCHAR);

                TRACE("returning data: %s\n", debugstr_wn((WCHAR*)lpBuffer, len));
                ret = TRUE;
            }

            if (request_only)
                HeapFree(GetProcessHeap(), 0, headers);
            return ret;
        }
    case HTTP_QUERY_RAW_HEADERS:
        {
            static const WCHAR szCrLf[] = {'\r','\n',0};
            LPWSTR * ppszRawHeaderLines = HTTP_Tokenize(lpwhr->lpszRawHeaders, szCrLf);
            DWORD i, size = 0;
            LPWSTR pszString = (WCHAR*)lpBuffer;

            for (i = 0; ppszRawHeaderLines[i]; i++)
                size += strlenW(ppszRawHeaderLines[i]) + 1;

            if (size + 1 > *lpdwBufferLength/sizeof(WCHAR))
            {
                HTTP_FreeTokens(ppszRawHeaderLines);
                *lpdwBufferLength = (size + 1) * sizeof(WCHAR);
                INTERNET_SetLastError(ERROR_INSUFFICIENT_BUFFER);
                return FALSE;
            }

            for (i = 0; ppszRawHeaderLines[i]; i++)
            {
                DWORD len = strlenW(ppszRawHeaderLines[i]);
                memcpy(pszString, ppszRawHeaderLines[i], (len+1)*sizeof(WCHAR));
                pszString += len+1;
            }
            *pszString = '\0';

            TRACE("returning data: %s\n", debugstr_wn((WCHAR*)lpBuffer, size));

            *lpdwBufferLength = size * sizeof(WCHAR);
            HTTP_FreeTokens(ppszRawHeaderLines);

            return TRUE;
        }
    case HTTP_QUERY_STATUS_TEXT:
        if (lpwhr->lpszStatusText)
        {
            DWORD len = strlenW(lpwhr->lpszStatusText);
            if (len + 1 > *lpdwBufferLength/sizeof(WCHAR))
            {
                *lpdwBufferLength = (len + 1) * sizeof(WCHAR);
                INTERNET_SetLastError(ERROR_INSUFFICIENT_BUFFER);
                return FALSE;
            }
            memcpy(lpBuffer, lpwhr->lpszStatusText, (len+1)*sizeof(WCHAR));
            *lpdwBufferLength = len * sizeof(WCHAR);

            TRACE("returning data: %s\n", debugstr_wn((WCHAR*)lpBuffer, len));

            return TRUE;
        }
        break;
    case HTTP_QUERY_VERSION:
        if (lpwhr->lpszVersion)
        {
            DWORD len = strlenW(lpwhr->lpszVersion);
            if (len + 1 > *lpdwBufferLength/sizeof(WCHAR))
            {
                *lpdwBufferLength = (len + 1) * sizeof(WCHAR);
                INTERNET_SetLastError(ERROR_INSUFFICIENT_BUFFER);
                return FALSE;
            }
            memcpy(lpBuffer, lpwhr->lpszVersion, (len+1)*sizeof(WCHAR));
            *lpdwBufferLength = len * sizeof(WCHAR);

            TRACE("returning data: %s\n", debugstr_wn((WCHAR*)lpBuffer, len));

            return TRUE;
        }
        break;
    default:
        assert (LAST_TABLE_HEADER == (HTTP_QUERY_UNLESS_MODIFIED_SINCE + 1));

        if (level >= 0 && level < LAST_TABLE_HEADER && header_lookup[level])
            index = HTTP_GetCustomHeaderIndex(lpwhr, header_lookup[level],
                                              requested_index,request_only);
    }

    if (index >= 0)
        lphttpHdr = &lpwhr->pCustHeaders[index];

    /* Ensure header satisfies requested attributes */
    if (!lphttpHdr ||
        ((dwInfoLevel & HTTP_QUERY_FLAG_REQUEST_HEADERS) &&
         (~lphttpHdr->wFlags & HDR_ISREQUEST)))
    {
        INTERNET_SetLastError(ERROR_HTTP_HEADER_NOT_FOUND);
        return bSuccess;
    }

    if (lpdwIndex)
        (*lpdwIndex)++;

    /* coalesce value to requested type */
    if (dwInfoLevel & HTTP_QUERY_FLAG_NUMBER)
    {
	*(int *)lpBuffer = atoiW(lphttpHdr->lpszValue);
	bSuccess = TRUE;

	TRACE(" returning number : %d\n", *(int *)lpBuffer);
    }
    else if (dwInfoLevel & HTTP_QUERY_FLAG_SYSTEMTIME)
    {
        time_t tmpTime;
        struct tm tmpTM;
        SYSTEMTIME *STHook;

        tmpTime = ConvertTimeString(lphttpHdr->lpszValue);

        tmpTM = *gmtime(&tmpTime);
        STHook = (SYSTEMTIME *) lpBuffer;
        if(STHook==NULL)
            return bSuccess;

	STHook->wDay = tmpTM.tm_mday;
	STHook->wHour = tmpTM.tm_hour;
	STHook->wMilliseconds = 0;
	STHook->wMinute = tmpTM.tm_min;
	STHook->wDayOfWeek = tmpTM.tm_wday;
	STHook->wMonth = tmpTM.tm_mon + 1;
	STHook->wSecond = tmpTM.tm_sec;
	STHook->wYear = tmpTM.tm_year;
	
	bSuccess = TRUE;
	
	TRACE(" returning time : %04d/%02d/%02d - %d - %02d:%02d:%02d.%02d\n", 
	      STHook->wYear, STHook->wMonth, STHook->wDay, STHook->wDayOfWeek,
	      STHook->wHour, STHook->wMinute, STHook->wSecond, STHook->wMilliseconds);
    }
    else if (lphttpHdr->lpszValue)
    {
        DWORD len = (strlenW(lphttpHdr->lpszValue) + 1) * sizeof(WCHAR);

        if (len > *lpdwBufferLength)
        {
            *lpdwBufferLength = len;
            INTERNET_SetLastError(ERROR_INSUFFICIENT_BUFFER);
            return bSuccess;
        }

        memcpy(lpBuffer, lphttpHdr->lpszValue, len);
        *lpdwBufferLength = len - sizeof(WCHAR);
        bSuccess = TRUE;

	TRACE(" returning string : %s\n", debugstr_w(lpBuffer));
    }
    return bSuccess;
}

/***********************************************************************
 *           HttpQueryInfoW (WININET.@)
 *
 * Queries for information about an HTTP request
 *
 * RETURNS
 *    TRUE  on success
 *    FALSE on failure
 *
 */
BOOL WINAPI HttpQueryInfoW(HINTERNET hHttpRequest, DWORD dwInfoLevel,
	LPVOID lpBuffer, LPDWORD lpdwBufferLength, LPDWORD lpdwIndex)
{
    BOOL bSuccess = FALSE;
    LPWININETHTTPREQW lpwhr;

    if (TRACE_ON(wininet)) {
#define FE(x) { x, #x }
	static const wininet_flag_info query_flags[] = {
	    FE(HTTP_QUERY_MIME_VERSION),
	    FE(HTTP_QUERY_CONTENT_TYPE),
	    FE(HTTP_QUERY_CONTENT_TRANSFER_ENCODING),
	    FE(HTTP_QUERY_CONTENT_ID),
	    FE(HTTP_QUERY_CONTENT_DESCRIPTION),
	    FE(HTTP_QUERY_CONTENT_LENGTH),
	    FE(HTTP_QUERY_CONTENT_LANGUAGE),
	    FE(HTTP_QUERY_ALLOW),
	    FE(HTTP_QUERY_PUBLIC),
	    FE(HTTP_QUERY_DATE),
	    FE(HTTP_QUERY_EXPIRES),
	    FE(HTTP_QUERY_LAST_MODIFIED),
	    FE(HTTP_QUERY_MESSAGE_ID),
	    FE(HTTP_QUERY_URI),
	    FE(HTTP_QUERY_DERIVED_FROM),
	    FE(HTTP_QUERY_COST),
	    FE(HTTP_QUERY_LINK),
	    FE(HTTP_QUERY_PRAGMA),
	    FE(HTTP_QUERY_VERSION),
	    FE(HTTP_QUERY_STATUS_CODE),
	    FE(HTTP_QUERY_STATUS_TEXT),
	    FE(HTTP_QUERY_RAW_HEADERS),
	    FE(HTTP_QUERY_RAW_HEADERS_CRLF),
	    FE(HTTP_QUERY_CONNECTION),
	    FE(HTTP_QUERY_ACCEPT),
	    FE(HTTP_QUERY_ACCEPT_CHARSET),
	    FE(HTTP_QUERY_ACCEPT_ENCODING),
	    FE(HTTP_QUERY_ACCEPT_LANGUAGE),
	    FE(HTTP_QUERY_AUTHORIZATION),
	    FE(HTTP_QUERY_CONTENT_ENCODING),
	    FE(HTTP_QUERY_FORWARDED),
	    FE(HTTP_QUERY_FROM),
	    FE(HTTP_QUERY_IF_MODIFIED_SINCE),
	    FE(HTTP_QUERY_LOCATION),
	    FE(HTTP_QUERY_ORIG_URI),
	    FE(HTTP_QUERY_REFERER),
	    FE(HTTP_QUERY_RETRY_AFTER),
	    FE(HTTP_QUERY_SERVER),
	    FE(HTTP_QUERY_TITLE),
	    FE(HTTP_QUERY_USER_AGENT),
	    FE(HTTP_QUERY_WWW_AUTHENTICATE),
	    FE(HTTP_QUERY_PROXY_AUTHENTICATE),
	    FE(HTTP_QUERY_ACCEPT_RANGES),
        FE(HTTP_QUERY_SET_COOKIE),
        FE(HTTP_QUERY_COOKIE),
	    FE(HTTP_QUERY_REQUEST_METHOD),
	    FE(HTTP_QUERY_REFRESH),
	    FE(HTTP_QUERY_CONTENT_DISPOSITION),
	    FE(HTTP_QUERY_AGE),
	    FE(HTTP_QUERY_CACHE_CONTROL),
	    FE(HTTP_QUERY_CONTENT_BASE),
	    FE(HTTP_QUERY_CONTENT_LOCATION),
	    FE(HTTP_QUERY_CONTENT_MD5),
	    FE(HTTP_QUERY_CONTENT_RANGE),
	    FE(HTTP_QUERY_ETAG),
	    FE(HTTP_QUERY_HOST),
	    FE(HTTP_QUERY_IF_MATCH),
	    FE(HTTP_QUERY_IF_NONE_MATCH),
	    FE(HTTP_QUERY_IF_RANGE),
	    FE(HTTP_QUERY_IF_UNMODIFIED_SINCE),
	    FE(HTTP_QUERY_MAX_FORWARDS),
	    FE(HTTP_QUERY_PROXY_AUTHORIZATION),
	    FE(HTTP_QUERY_RANGE),
	    FE(HTTP_QUERY_TRANSFER_ENCODING),
	    FE(HTTP_QUERY_UPGRADE),
	    FE(HTTP_QUERY_VARY),
	    FE(HTTP_QUERY_VIA),
	    FE(HTTP_QUERY_WARNING),
	    FE(HTTP_QUERY_CUSTOM)
	};
	static const wininet_flag_info modifier_flags[] = {
	    FE(HTTP_QUERY_FLAG_REQUEST_HEADERS),
	    FE(HTTP_QUERY_FLAG_SYSTEMTIME),
	    FE(HTTP_QUERY_FLAG_NUMBER),
	    FE(HTTP_QUERY_FLAG_COALESCE)
	};
#undef FE
	DWORD info_mod = dwInfoLevel & HTTP_QUERY_MODIFIER_FLAGS_MASK;
	DWORD info = dwInfoLevel & HTTP_QUERY_HEADER_MASK;
	DWORD i;

	TRACE("(%p, 0x%08x)--> %d\n", hHttpRequest, dwInfoLevel, dwInfoLevel);
	TRACE("  Attribute:");
	for (i = 0; i < (sizeof(query_flags) / sizeof(query_flags[0])); i++) {
	    if (query_flags[i].val == info) {
		TRACE(" %s", query_flags[i].name);
		break;
	    }
	}
	if (i == (sizeof(query_flags) / sizeof(query_flags[0]))) {
	    TRACE(" Unknown (%08x)", info);
	}

	TRACE(" Modifier:");
	for (i = 0; i < (sizeof(modifier_flags) / sizeof(modifier_flags[0])); i++) {
	    if (modifier_flags[i].val & info_mod) {
		TRACE(" %s", modifier_flags[i].name);
		info_mod &= ~ modifier_flags[i].val;
	    }
	}
	
	if (info_mod) {
	    TRACE(" Unknown (%08x)", info_mod);
	}
	TRACE("\n");
    }
    
    lpwhr = (LPWININETHTTPREQW) WININET_GetObject( hHttpRequest );
    if (NULL == lpwhr ||  lpwhr->hdr.htype != WH_HHTTPREQ)
    {
        INTERNET_SetLastError(ERROR_INTERNET_INCORRECT_HANDLE_TYPE);
	goto lend;
    }

    if (lpBuffer == NULL)
        *lpdwBufferLength = 0;
    bSuccess = HTTP_HttpQueryInfoW( lpwhr, dwInfoLevel,
	                            lpBuffer, lpdwBufferLength, lpdwIndex);

lend:
    if( lpwhr )
         WININET_Release( &lpwhr->hdr );

    TRACE("%d <--\n", bSuccess);
    return bSuccess;
}

/***********************************************************************
 *           HttpQueryInfoA (WININET.@)
 *
 * Queries for information about an HTTP request
 *
 * RETURNS
 *    TRUE  on success
 *    FALSE on failure
 *
 */
BOOL WINAPI HttpQueryInfoA(HINTERNET hHttpRequest, DWORD dwInfoLevel,
	LPVOID lpBuffer, LPDWORD lpdwBufferLength, LPDWORD lpdwIndex)
{
    BOOL result;
    DWORD len;
    WCHAR* bufferW;

    if((dwInfoLevel & HTTP_QUERY_FLAG_NUMBER) ||
       (dwInfoLevel & HTTP_QUERY_FLAG_SYSTEMTIME))
    {
        return HttpQueryInfoW( hHttpRequest, dwInfoLevel, lpBuffer,
                               lpdwBufferLength, lpdwIndex );
    }

    if (lpBuffer)
    {
        len = (*lpdwBufferLength)*sizeof(WCHAR);
        bufferW = HeapAlloc( GetProcessHeap(), 0, len );
        /* buffer is in/out because of HTTP_QUERY_CUSTOM */
        if ((dwInfoLevel & HTTP_QUERY_HEADER_MASK) == HTTP_QUERY_CUSTOM)
            MultiByteToWideChar(CP_ACP,0,lpBuffer,-1,bufferW,len);
    } else
    {
        bufferW = NULL;
        len = 0;
    }

    result = HttpQueryInfoW( hHttpRequest, dwInfoLevel, bufferW,
                           &len, lpdwIndex );
    if( result )
    {
        len = WideCharToMultiByte( CP_ACP,0, bufferW, len / sizeof(WCHAR) + 1,
                                     lpBuffer, *lpdwBufferLength, NULL, NULL );
        *lpdwBufferLength = len - 1;

        TRACE("lpBuffer: %s\n", debugstr_a(lpBuffer));
    }
    else
        /* since the strings being returned from HttpQueryInfoW should be
         * only ASCII characters, it is reasonable to assume that all of
         * the Unicode characters can be reduced to a single byte */
        *lpdwBufferLength = len / sizeof(WCHAR);

    HeapFree(GetProcessHeap(), 0, bufferW );

    return result;
}

/***********************************************************************
 *           HttpSendRequestExA (WININET.@)
 *
 * Sends the specified request to the HTTP server and allows chunked
 * transfers.
 *
 * RETURNS
 *  Success: TRUE
 *  Failure: FALSE, call GetLastError() for more information.
 */
BOOL WINAPI HttpSendRequestExA(HINTERNET hRequest,
			       LPINTERNET_BUFFERSA lpBuffersIn,
			       LPINTERNET_BUFFERSA lpBuffersOut,
			       DWORD dwFlags, DWORD_PTR dwContext)
{
    INTERNET_BUFFERSW BuffersInW;
    BOOL rc = FALSE;
    DWORD headerlen;
    LPWSTR header = NULL;

    TRACE("(%p, %p, %p, %08x, %08lx): stub\n", hRequest, lpBuffersIn,
	    lpBuffersOut, dwFlags, dwContext);

    if (lpBuffersIn)
    {
        BuffersInW.dwStructSize = sizeof(LPINTERNET_BUFFERSW);
        if (lpBuffersIn->lpcszHeader)
        {
            headerlen = MultiByteToWideChar(CP_ACP,0,lpBuffersIn->lpcszHeader,
                    lpBuffersIn->dwHeadersLength,0,0);
            header = HeapAlloc(GetProcessHeap(),0,headerlen*sizeof(WCHAR));
            if (!(BuffersInW.lpcszHeader = header))
            {
                INTERNET_SetLastError(ERROR_OUTOFMEMORY);
                return FALSE;
            }
            BuffersInW.dwHeadersLength = MultiByteToWideChar(CP_ACP, 0,
                    lpBuffersIn->lpcszHeader, lpBuffersIn->dwHeadersLength,
                    header, headerlen);
        }
        else
            BuffersInW.lpcszHeader = NULL;
        BuffersInW.dwHeadersTotal = lpBuffersIn->dwHeadersTotal;
        BuffersInW.lpvBuffer = lpBuffersIn->lpvBuffer;
        BuffersInW.dwBufferLength = lpBuffersIn->dwBufferLength;
        BuffersInW.dwBufferTotal = lpBuffersIn->dwBufferTotal;
        BuffersInW.Next = NULL;
    }

    rc = HttpSendRequestExW(hRequest, lpBuffersIn ? &BuffersInW : NULL, NULL, dwFlags, dwContext);

    HeapFree(GetProcessHeap(),0,header);

    return rc;
}

/***********************************************************************
 *           HttpSendRequestExW (WININET.@)
 *
 * Sends the specified request to the HTTP server and allows chunked
 * transfers
 *
 * RETURNS
 *  Success: TRUE
 *  Failure: FALSE, call GetLastError() for more information.
 */
BOOL WINAPI HttpSendRequestExW(HINTERNET hRequest,
                   LPINTERNET_BUFFERSW lpBuffersIn,
                   LPINTERNET_BUFFERSW lpBuffersOut,
                   DWORD dwFlags, DWORD_PTR dwContext)
{
    BOOL ret = FALSE;
    LPWININETHTTPREQW lpwhr;
    LPWININETHTTPSESSIONW lpwhs;
    LPWININETAPPINFOW hIC;

    TRACE("(%p, %p, %p, %08x, %08lx)\n", hRequest, lpBuffersIn,
            lpBuffersOut, dwFlags, dwContext);

    lpwhr = (LPWININETHTTPREQW) WININET_GetObject( hRequest );

    if (NULL == lpwhr || lpwhr->hdr.htype != WH_HHTTPREQ)
    {
        INTERNET_SetLastError(ERROR_INTERNET_INCORRECT_HANDLE_TYPE);
        goto lend;
    }

    lpwhs = lpwhr->lpHttpSession;
    assert(lpwhs->hdr.htype == WH_HHTTPSESSION);
    hIC = lpwhs->lpAppInfo;
    assert(hIC->hdr.htype == WH_HINIT);

    if (hIC->hdr.dwFlags & INTERNET_FLAG_ASYNC)
    {
        WORKREQUEST workRequest;
        struct WORKREQ_HTTPSENDREQUESTW *req;

        workRequest.asyncproc = AsyncHttpSendRequestProc;
        workRequest.hdr = WININET_AddRef( &lpwhr->hdr );
        req = &workRequest.u.HttpSendRequestW;
        if (lpBuffersIn)
        {
            if (lpBuffersIn->lpcszHeader)
                /* FIXME: this should use dwHeadersLength or may not be necessary at all */
                req->lpszHeader = WININET_strdupW(lpBuffersIn->lpcszHeader);
            else
                req->lpszHeader = NULL;
            req->dwHeaderLength = lpBuffersIn->dwHeadersLength;
            req->lpOptional = lpBuffersIn->lpvBuffer;
            req->dwOptionalLength = lpBuffersIn->dwBufferLength;
            req->dwContentLength = lpBuffersIn->dwBufferTotal;
        }
        else
        {
            req->lpszHeader = NULL;
            req->dwHeaderLength = 0;
            req->lpOptional = NULL;
            req->dwOptionalLength = 0;
            req->dwContentLength = 0;
        }

        req->bEndRequest = FALSE;

        INTERNET_AsyncCall(&workRequest);
        /*
         * This is from windows.
         */
        INTERNET_SetLastError(ERROR_IO_PENDING);
    }
    else
    {
        if (lpBuffersIn)
            ret = HTTP_HttpSendRequestW(lpwhr, lpBuffersIn->lpcszHeader, lpBuffersIn->dwHeadersLength,
                                        lpBuffersIn->lpvBuffer, lpBuffersIn->dwBufferLength,
                                        lpBuffersIn->dwBufferTotal, FALSE);
        else
            ret = HTTP_HttpSendRequestW(lpwhr, NULL, 0, NULL, 0, 0, FALSE);
    }

lend:
    if ( lpwhr )
        WININET_Release( &lpwhr->hdr );

    TRACE("<---\n");
    return ret;
}

/***********************************************************************
 *           HttpSendRequestW (WININET.@)
 *
 * Sends the specified request to the HTTP server
 *
 * RETURNS
 *    TRUE  on success
 *    FALSE on failure
 *
 */
BOOL WINAPI HttpSendRequestW(HINTERNET hHttpRequest, LPCWSTR lpszHeaders,
	DWORD dwHeaderLength, LPVOID lpOptional ,DWORD dwOptionalLength)
{
    LPWININETHTTPREQW lpwhr;
    LPWININETHTTPSESSIONW lpwhs = NULL;
    LPWININETAPPINFOW hIC = NULL;
    BOOL r;

    TRACE("%p, %s, %i, %p, %i)\n", hHttpRequest,
            debugstr_wn(lpszHeaders, dwHeaderLength), dwHeaderLength, lpOptional, dwOptionalLength);

    lpwhr = (LPWININETHTTPREQW) WININET_GetObject( hHttpRequest );
    if (NULL == lpwhr || lpwhr->hdr.htype != WH_HHTTPREQ)
    {
        INTERNET_SetLastError(ERROR_INTERNET_INCORRECT_HANDLE_TYPE);
	r = FALSE;
        goto lend;
    }

    lpwhs = lpwhr->lpHttpSession;
    if (NULL == lpwhs ||  lpwhs->hdr.htype != WH_HHTTPSESSION)
    {
        INTERNET_SetLastError(ERROR_INTERNET_INCORRECT_HANDLE_TYPE);
	r = FALSE;
        goto lend;
    }

    hIC = lpwhs->lpAppInfo;
    if (NULL == hIC ||  hIC->hdr.htype != WH_HINIT)
    {
        INTERNET_SetLastError(ERROR_INTERNET_INCORRECT_HANDLE_TYPE);
	r = FALSE;
        goto lend;
    }

    if (hIC->hdr.dwFlags & INTERNET_FLAG_ASYNC)
    {
        WORKREQUEST workRequest;
        struct WORKREQ_HTTPSENDREQUESTW *req;

        workRequest.asyncproc = AsyncHttpSendRequestProc;
        workRequest.hdr = WININET_AddRef( &lpwhr->hdr );
        req = &workRequest.u.HttpSendRequestW;
        if (lpszHeaders)
        {
            req->lpszHeader = HeapAlloc(GetProcessHeap(), 0, dwHeaderLength * sizeof(WCHAR));
            memcpy(req->lpszHeader, lpszHeaders, dwHeaderLength * sizeof(WCHAR));
        }
        else
            req->lpszHeader = 0;
        req->dwHeaderLength = dwHeaderLength;
        req->lpOptional = lpOptional;
        req->dwOptionalLength = dwOptionalLength;
        req->dwContentLength = dwOptionalLength;
        req->bEndRequest = TRUE;

        INTERNET_AsyncCall(&workRequest);
        /*
         * This is from windows.
         */
        INTERNET_SetLastError(ERROR_IO_PENDING);
        r = FALSE;
    }
    else
    {
	r = HTTP_HttpSendRequestW(lpwhr, lpszHeaders,
		dwHeaderLength, lpOptional, dwOptionalLength,
		dwOptionalLength, TRUE);
    }
lend:
    if( lpwhr )
        WININET_Release( &lpwhr->hdr );
    return r;
}

/***********************************************************************
 *           HttpSendRequestA (WININET.@)
 *
 * Sends the specified request to the HTTP server
 *
 * RETURNS
 *    TRUE  on success
 *    FALSE on failure
 *
 */
BOOL WINAPI HttpSendRequestA(HINTERNET hHttpRequest, LPCSTR lpszHeaders,
	DWORD dwHeaderLength, LPVOID lpOptional ,DWORD dwOptionalLength)
{
    BOOL result;
    LPWSTR szHeaders=NULL;
    DWORD nLen=dwHeaderLength;
    if(lpszHeaders!=NULL)
    {
        nLen=MultiByteToWideChar(CP_ACP,0,lpszHeaders,dwHeaderLength,NULL,0);
        szHeaders=HeapAlloc(GetProcessHeap(),0,nLen*sizeof(WCHAR));
        MultiByteToWideChar(CP_ACP,0,lpszHeaders,dwHeaderLength,szHeaders,nLen);
    }
    result=HttpSendRequestW(hHttpRequest, szHeaders, nLen, lpOptional, dwOptionalLength);
    HeapFree(GetProcessHeap(),0,szHeaders);
    return result;
}

/***********************************************************************
 *           HTTP_HandleRedirect (internal)
 */
static BOOL HTTP_HandleRedirect(LPWININETHTTPREQW lpwhr, LPCWSTR lpszUrl)
{
    LPWININETHTTPSESSIONW lpwhs = lpwhr->lpHttpSession;
    LPWININETAPPINFOW hIC = lpwhs->lpAppInfo;
    WCHAR path[2048];

    if(lpszUrl[0]=='/')
    {
        /* if it's an absolute path, keep the same session info */
        lstrcpynW(path, lpszUrl, 2048);
    }
    else if (NULL != hIC->lpszProxy && hIC->lpszProxy[0] != 0)
    {
        TRACE("Redirect through proxy\n");
        lstrcpynW(path, lpszUrl, 2048);
    }
    else
    {
        URL_COMPONENTSW urlComponents;
        WCHAR protocol[32], hostName[MAXHOSTNAME], userName[1024];
        static WCHAR szHttp[] = {'h','t','t','p',0};
        static WCHAR szHttps[] = {'h','t','t','p','s',0};
        DWORD url_length = 0;
        LPWSTR orig_url;
        LPWSTR combined_url;

        urlComponents.dwStructSize = sizeof(URL_COMPONENTSW);
        urlComponents.lpszScheme = (lpwhr->hdr.dwFlags & INTERNET_FLAG_SECURE) ? szHttps : szHttp;
        urlComponents.dwSchemeLength = 0;
        urlComponents.lpszHostName = lpwhs->lpszHostName;
        urlComponents.dwHostNameLength = 0;
        urlComponents.nPort = lpwhs->nHostPort;
        urlComponents.lpszUserName = lpwhs->lpszUserName;
        urlComponents.dwUserNameLength = 0;
        urlComponents.lpszPassword = NULL;
        urlComponents.dwPasswordLength = 0;
        urlComponents.lpszUrlPath = lpwhr->lpszPath;
        urlComponents.dwUrlPathLength = 0;
        urlComponents.lpszExtraInfo = NULL;
        urlComponents.dwExtraInfoLength = 0;

        if (!InternetCreateUrlW(&urlComponents, 0, NULL, &url_length) &&
            (GetLastError() != ERROR_INSUFFICIENT_BUFFER))
            return FALSE;

        orig_url = HeapAlloc(GetProcessHeap(), 0, url_length);

        /* convert from bytes to characters */
        url_length = url_length / sizeof(WCHAR) - 1;
        if (!InternetCreateUrlW(&urlComponents, 0, orig_url, &url_length))
        {
            HeapFree(GetProcessHeap(), 0, orig_url);
            return FALSE;
        }

        url_length = 0;
        if (!InternetCombineUrlW(orig_url, lpszUrl, NULL, &url_length, ICU_ENCODE_SPACES_ONLY) &&
            (GetLastError() != ERROR_INSUFFICIENT_BUFFER))
        {
            HeapFree(GetProcessHeap(), 0, orig_url);
            return FALSE;
        }
        combined_url = HeapAlloc(GetProcessHeap(), 0, url_length * sizeof(WCHAR));

        if (!InternetCombineUrlW(orig_url, lpszUrl, combined_url, &url_length, ICU_ENCODE_SPACES_ONLY))
        {
            HeapFree(GetProcessHeap(), 0, orig_url);
            HeapFree(GetProcessHeap(), 0, combined_url);
            return FALSE;
        }
        HeapFree(GetProcessHeap(), 0, orig_url);

        userName[0] = 0;
        hostName[0] = 0;
        protocol[0] = 0;

        urlComponents.dwStructSize = sizeof(URL_COMPONENTSW);
        urlComponents.lpszScheme = protocol;
        urlComponents.dwSchemeLength = 32;
        urlComponents.lpszHostName = hostName;
        urlComponents.dwHostNameLength = MAXHOSTNAME;
        urlComponents.lpszUserName = userName;
        urlComponents.dwUserNameLength = 1024;
        urlComponents.lpszPassword = NULL;
        urlComponents.dwPasswordLength = 0;
        urlComponents.lpszUrlPath = path;
        urlComponents.dwUrlPathLength = 2048;
        urlComponents.lpszExtraInfo = NULL;
        urlComponents.dwExtraInfoLength = 0;
        if(!InternetCrackUrlW(combined_url, strlenW(combined_url), 0, &urlComponents))
        {
            HeapFree(GetProcessHeap(), 0, combined_url);
            return FALSE;
        }
        HeapFree(GetProcessHeap(), 0, combined_url);

        if (!strncmpW(szHttp, urlComponents.lpszScheme, strlenW(szHttp)) &&
            (lpwhr->hdr.dwFlags & INTERNET_FLAG_SECURE))
        {
            TRACE("redirect from secure page to non-secure page\n");
            /* FIXME: warn about from secure redirect to non-secure page */
            lpwhr->hdr.dwFlags &= ~INTERNET_FLAG_SECURE;
        }
        if (!strncmpW(szHttps, urlComponents.lpszScheme, strlenW(szHttps)) &&
            !(lpwhr->hdr.dwFlags & INTERNET_FLAG_SECURE))
        {
            TRACE("redirect from non-secure page to secure page\n");
            /* FIXME: notify about redirect to secure page */
            lpwhr->hdr.dwFlags |= INTERNET_FLAG_SECURE;
        }

        if (urlComponents.nPort == INTERNET_INVALID_PORT_NUMBER)
        {
            if (lstrlenW(protocol)>4) /*https*/
                urlComponents.nPort = INTERNET_DEFAULT_HTTPS_PORT;
            else /*http*/
                urlComponents.nPort = INTERNET_DEFAULT_HTTP_PORT;
        }

#if 0
        /*
         * This upsets redirects to binary files on sourceforge.net 
         * and gives an html page instead of the target file
         * Examination of the HTTP request sent by native wininet.dll
         * reveals that it doesn't send a referrer in that case.
         * Maybe there's a flag that enables this, or maybe a referrer
         * shouldn't be added in case of a redirect.
         */

        /* consider the current host as the referrer */
        if (NULL != lpwhs->lpszServerName && strlenW(lpwhs->lpszServerName))
            HTTP_ProcessHeader(lpwhr, HTTP_REFERER, lpwhs->lpszServerName,
                           HTTP_ADDHDR_FLAG_REQ|HTTP_ADDREQ_FLAG_REPLACE|
                           HTTP_ADDHDR_FLAG_ADD_IF_NEW);
#endif
        
        HeapFree(GetProcessHeap(), 0, lpwhs->lpszServerName);
        lpwhs->lpszServerName = WININET_strdupW(hostName);
        HeapFree(GetProcessHeap(), 0, lpwhs->lpszHostName);
        if (urlComponents.nPort != INTERNET_DEFAULT_HTTP_PORT &&
                urlComponents.nPort != INTERNET_DEFAULT_HTTPS_PORT)
        {
            int len;
            static const WCHAR fmt[] = {'%','s',':','%','i',0};
            len = lstrlenW(hostName);
            len += 7; /* 5 for strlen("65535") + 1 for ":" + 1 for '\0' */
            lpwhs->lpszHostName = HeapAlloc(GetProcessHeap(), 0, len*sizeof(WCHAR));
            sprintfW(lpwhs->lpszHostName, fmt, hostName, urlComponents.nPort);
        }
        else
            lpwhs->lpszHostName = WININET_strdupW(hostName);

        HTTP_ProcessHeader(lpwhr, szHost, lpwhs->lpszHostName, HTTP_ADDREQ_FLAG_ADD | HTTP_ADDREQ_FLAG_REPLACE | HTTP_ADDHDR_FLAG_REQ);

        
        HeapFree(GetProcessHeap(), 0, lpwhs->lpszUserName);
        lpwhs->lpszUserName = NULL;
        if (userName[0])
            lpwhs->lpszUserName = WININET_strdupW(userName);
        lpwhs->nServerPort = urlComponents.nPort;

        if (!HTTP_ResolveName(lpwhr))
            return FALSE;

        NETCON_close(&lpwhr->netConnection);

        if (!NETCON_init(&lpwhr->netConnection,lpwhr->hdr.dwFlags & INTERNET_FLAG_SECURE))
            return FALSE;
    }

    HeapFree(GetProcessHeap(), 0, lpwhr->lpszPath);
    lpwhr->lpszPath=NULL;
    if (strlenW(path))
    {
        DWORD needed = 0;
        HRESULT rc;

        rc = UrlEscapeW(path, NULL, &needed, URL_ESCAPE_SPACES_ONLY);
        if (rc != E_POINTER)
            needed = strlenW(path)+1;
        lpwhr->lpszPath = HeapAlloc(GetProcessHeap(), 0, needed*sizeof(WCHAR));
        rc = UrlEscapeW(path, lpwhr->lpszPath, &needed,
                        URL_ESCAPE_SPACES_ONLY);
        if (rc)
        {
            ERR("Unable to escape string!(%s) (%d)\n",debugstr_w(path),rc);
            strcpyW(lpwhr->lpszPath,path);
        }
    }

    return TRUE;
}

/***********************************************************************
 *           HTTP_build_req (internal)
 *
 *  concatenate all the strings in the request together
 */
static LPWSTR HTTP_build_req( LPCWSTR *list, int len )
{
    LPCWSTR *t;
    LPWSTR str;

    for( t = list; *t ; t++  )
        len += strlenW( *t );
    len++;

    str = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
    *str = 0;

    for( t = list; *t ; t++ )
        strcatW( str, *t );

    return str;
}

static BOOL HTTP_SecureProxyConnect(LPWININETHTTPREQW lpwhr)
{
    LPWSTR lpszPath;
    LPWSTR requestString;
    INT len;
    INT cnt;
    INT responseLen;
    char *ascii_req;
    BOOL ret;
    static const WCHAR szConnect[] = {'C','O','N','N','E','C','T',0};
    static const WCHAR szFormat[] = {'%','s',':','%','d',0};
    LPWININETHTTPSESSIONW lpwhs = lpwhr->lpHttpSession;

    TRACE("\n");

    lpszPath = HeapAlloc( GetProcessHeap(), 0, (lstrlenW( lpwhs->lpszHostName ) + 13)*sizeof(WCHAR) );
    sprintfW( lpszPath, szFormat, lpwhs->lpszHostName, lpwhs->nHostPort );
    requestString = HTTP_BuildHeaderRequestString( lpwhr, szConnect, lpszPath, FALSE );
    HeapFree( GetProcessHeap(), 0, lpszPath );

    len = WideCharToMultiByte( CP_ACP, 0, requestString, -1,
                                NULL, 0, NULL, NULL );
    len--; /* the nul terminator isn't needed */
    ascii_req = HeapAlloc( GetProcessHeap(), 0, len );
    WideCharToMultiByte( CP_ACP, 0, requestString, -1,
                            ascii_req, len, NULL, NULL );
    HeapFree( GetProcessHeap(), 0, requestString );

    TRACE("full request -> %s\n", debugstr_an( ascii_req, len ) );

    ret = NETCON_send( &lpwhr->netConnection, ascii_req, len, 0, &cnt );
    HeapFree( GetProcessHeap(), 0, ascii_req );
    if (!ret || cnt < 0)
        return FALSE;

    responseLen = HTTP_GetResponseHeaders( lpwhr );
    if (!responseLen)
        return FALSE;

    return TRUE;
}

/***********************************************************************
 *           HTTP_HttpSendRequestW (internal)
 *
 * Sends the specified request to the HTTP server
 *
 * RETURNS
 *    TRUE  on success
 *    FALSE on failure
 *
 */
BOOL WINAPI HTTP_HttpSendRequestW(LPWININETHTTPREQW lpwhr, LPCWSTR lpszHeaders,
	DWORD dwHeaderLength, LPVOID lpOptional, DWORD dwOptionalLength,
	DWORD dwContentLength, BOOL bEndRequest)
{
    INT cnt;
    BOOL bSuccess = FALSE;
    LPWSTR requestString = NULL;
    INT responseLen;
    BOOL loop_next;
    INTERNET_ASYNC_RESULT iar;
    static const WCHAR szClose[] = { 'C','l','o','s','e',0 };
    static const WCHAR szContentLength[] =
        { 'C','o','n','t','e','n','t','-','L','e','n','g','t','h',':',' ','%','l','i','\r','\n',0 };
    WCHAR contentLengthStr[sizeof szContentLength/2 /* includes \r\n */ + 20 /* int */ ];

    TRACE("--> %p\n", lpwhr);

    assert(lpwhr->hdr.htype == WH_HHTTPREQ);

    /* Clear any error information */
    INTERNET_SetLastError(0);

    HTTP_FixVerb(lpwhr);
    
    sprintfW(contentLengthStr, szContentLength, dwContentLength);
    HTTP_HttpAddRequestHeadersW(lpwhr, contentLengthStr, -1L, HTTP_ADDREQ_FLAG_ADD | HTTP_ADDHDR_FLAG_REPLACE);

    do
    {
        DWORD len;
        char *ascii_req;

        loop_next = FALSE;

        /* like native, just in case the caller forgot to call InternetReadFile
         * for all the data */
        HTTP_DrainContent(lpwhr);
        lpwhr->dwContentRead = 0;

        if (TRACE_ON(wininet))
        {
            LPHTTPHEADERW Host = HTTP_GetHeader(lpwhr,szHost);
            TRACE("Going to url %s %s\n", debugstr_w(Host->lpszValue), debugstr_w(lpwhr->lpszPath));
        }

        HTTP_FixURL(lpwhr);
        HTTP_ProcessHeader(lpwhr, szConnection,
                           lpwhr->hdr.dwFlags & INTERNET_FLAG_KEEP_CONNECTION ? szKeepAlive : szClose,
                           HTTP_ADDHDR_FLAG_REQ | HTTP_ADDHDR_FLAG_REPLACE);

        HTTP_InsertAuthorization(lpwhr);
        HTTP_InsertProxyAuthorization(lpwhr);

        /* add the headers the caller supplied */
        if( lpszHeaders && dwHeaderLength )
        {
            HTTP_HttpAddRequestHeadersW(lpwhr, lpszHeaders, dwHeaderLength,
                        HTTP_ADDREQ_FLAG_ADD | HTTP_ADDHDR_FLAG_REPLACE);
        }

        requestString = HTTP_BuildHeaderRequestString(lpwhr, lpwhr->lpszVerb, lpwhr->lpszPath, FALSE);
 
        TRACE("Request header -> %s\n", debugstr_w(requestString) );

        /* Send the request and store the results */
        if (!HTTP_OpenConnection(lpwhr))
            goto lend;

        /* send the request as ASCII, tack on the optional data */
        if( !lpOptional )
            dwOptionalLength = 0;
        len = WideCharToMultiByte( CP_ACP, 0, requestString, -1,
                                   NULL, 0, NULL, NULL );
        ascii_req = HeapAlloc( GetProcessHeap(), 0, len + dwOptionalLength );
        WideCharToMultiByte( CP_ACP, 0, requestString, -1,
                             ascii_req, len, NULL, NULL );
        if( lpOptional )
            memcpy( &ascii_req[len-1], lpOptional, dwOptionalLength );
        len = (len + dwOptionalLength - 1);
        ascii_req[len] = 0;
        TRACE("full request -> %s\n", debugstr_a(ascii_req) );

        INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                              INTERNET_STATUS_SENDING_REQUEST, NULL, 0);

        NETCON_send(&lpwhr->netConnection, ascii_req, len, 0, &cnt);
        HeapFree( GetProcessHeap(), 0, ascii_req );

        INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                              INTERNET_STATUS_REQUEST_SENT,
                              &len, sizeof(DWORD));

        if (bEndRequest)
        {
            DWORD dwBufferSize;
            DWORD dwStatusCode;

            INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                                INTERNET_STATUS_RECEIVING_RESPONSE, NULL, 0);
    
            if (cnt < 0)
                goto lend;
    
            responseLen = HTTP_GetResponseHeaders(lpwhr);
            if (responseLen)
                bSuccess = TRUE;
    
            INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                                INTERNET_STATUS_RESPONSE_RECEIVED, &responseLen,
                                sizeof(DWORD));

            HTTP_ProcessHeaders(lpwhr);

            dwBufferSize = sizeof(lpwhr->dwContentLength);
            if (!HTTP_HttpQueryInfoW(lpwhr,HTTP_QUERY_FLAG_NUMBER|HTTP_QUERY_CONTENT_LENGTH,
                                     &lpwhr->dwContentLength,&dwBufferSize,NULL))
                lpwhr->dwContentLength = -1;

            if (lpwhr->dwContentLength == 0)
                HTTP_FinishedReading(lpwhr);

            dwBufferSize = sizeof(dwStatusCode);
            if (!HTTP_HttpQueryInfoW(lpwhr,HTTP_QUERY_FLAG_NUMBER|HTTP_QUERY_STATUS_CODE,
                                     &dwStatusCode,&dwBufferSize,NULL))
                dwStatusCode = 0;

            if (!(lpwhr->hdr.dwFlags & INTERNET_FLAG_NO_AUTO_REDIRECT) && bSuccess)
            {
                WCHAR szNewLocation[2048];
                dwBufferSize=sizeof(szNewLocation);
                if ((dwStatusCode==HTTP_STATUS_REDIRECT || dwStatusCode==HTTP_STATUS_MOVED) &&
                    HTTP_HttpQueryInfoW(lpwhr,HTTP_QUERY_LOCATION,szNewLocation,&dwBufferSize,NULL))
                {
                    HTTP_DrainContent(lpwhr);
                    INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                                          INTERNET_STATUS_REDIRECT, szNewLocation,
                                          dwBufferSize);
                    bSuccess = HTTP_HandleRedirect(lpwhr, szNewLocation);
                    if (bSuccess)
                    {
                        HeapFree(GetProcessHeap(), 0, requestString);
                        loop_next = TRUE;
                    }
                }
            }
            if (!(lpwhr->hdr.dwFlags & INTERNET_FLAG_NO_AUTH) && bSuccess)
            {
                WCHAR szAuthValue[2048];
                dwBufferSize=2048;
                if (dwStatusCode == HTTP_STATUS_DENIED)
                {
                    DWORD dwIndex = 0;
                    while (HTTP_HttpQueryInfoW(lpwhr,HTTP_QUERY_WWW_AUTHENTICATE,szAuthValue,&dwBufferSize,&dwIndex))
                    {
                        if (HTTP_DoAuthorization(lpwhr, szAuthValue,
                                                 &lpwhr->pAuthInfo,
                                                 lpwhr->lpHttpSession->lpszUserName,
                                                 lpwhr->lpHttpSession->lpszPassword))
                        {
                            loop_next = TRUE;
                            break;
                        }
                    }
                }
                if (dwStatusCode == HTTP_STATUS_PROXY_AUTH_REQ)
                {
                    DWORD dwIndex = 0;
                    while (HTTP_HttpQueryInfoW(lpwhr,HTTP_QUERY_PROXY_AUTHENTICATE,szAuthValue,&dwBufferSize,&dwIndex))
                    {
                        if (HTTP_DoAuthorization(lpwhr, szAuthValue,
                                                 &lpwhr->pProxyAuthInfo,
                                                 lpwhr->lpHttpSession->lpAppInfo->lpszProxyUsername,
                                                 lpwhr->lpHttpSession->lpAppInfo->lpszProxyPassword))
                        {
                            loop_next = TRUE;
                            break;
                        }
                    }
                }
            }
        }
        else
            bSuccess = TRUE;
    }
    while (loop_next);

lend:

    HeapFree(GetProcessHeap(), 0, requestString);

    /* TODO: send notification for P3P header */

    iar.dwResult = (DWORD)bSuccess;
    iar.dwError = bSuccess ? ERROR_SUCCESS : INTERNET_GetLastError();

    INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                          INTERNET_STATUS_REQUEST_COMPLETE, &iar,
                          sizeof(INTERNET_ASYNC_RESULT));

    TRACE("<--\n");
    return bSuccess;
}

/***********************************************************************
 *           HTTP_Connect  (internal)
 *
 * Create http session handle
 *
 * RETURNS
 *   HINTERNET a session handle on success
 *   NULL on failure
 *
 */
HINTERNET HTTP_Connect(LPWININETAPPINFOW hIC, LPCWSTR lpszServerName,
	INTERNET_PORT nServerPort, LPCWSTR lpszUserName,
	LPCWSTR lpszPassword, DWORD dwFlags, DWORD_PTR dwContext,
	DWORD dwInternalFlags)
{
    BOOL bSuccess = FALSE;
    LPWININETHTTPSESSIONW lpwhs = NULL;
    HINTERNET handle = NULL;

    TRACE("-->\n");

    assert( hIC->hdr.htype == WH_HINIT );

    lpwhs = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WININETHTTPSESSIONW));
    if (NULL == lpwhs)
    {
        INTERNET_SetLastError(ERROR_OUTOFMEMORY);
	goto lerror;
    }

   /*
    * According to my tests. The name is not resolved until a request is sent
    */

    lpwhs->hdr.htype = WH_HHTTPSESSION;
    lpwhs->hdr.dwFlags = dwFlags;
    lpwhs->hdr.dwContext = dwContext;
    lpwhs->hdr.dwInternalFlags = dwInternalFlags | (hIC->hdr.dwInternalFlags & INET_CALLBACKW);
    lpwhs->hdr.dwRefCount = 1;
    lpwhs->hdr.close_connection = NULL;
    lpwhs->hdr.destroy = HTTP_CloseHTTPSessionHandle;
    lpwhs->hdr.lpfnStatusCB = hIC->hdr.lpfnStatusCB;

    WININET_AddRef( &hIC->hdr );
    lpwhs->lpAppInfo = hIC;
    list_add_head( &hIC->hdr.children, &lpwhs->hdr.entry );

    handle = WININET_AllocHandle( &lpwhs->hdr );
    if (NULL == handle)
    {
        ERR("Failed to alloc handle\n");
        INTERNET_SetLastError(ERROR_OUTOFMEMORY);
	goto lerror;
    }

    if(hIC->lpszProxy && hIC->dwAccessType == INTERNET_OPEN_TYPE_PROXY) {
        if(strchrW(hIC->lpszProxy, ' '))
            FIXME("Several proxies not implemented.\n");
        if(hIC->lpszProxyBypass)
            FIXME("Proxy bypass is ignored.\n");
    }
    if (lpszServerName && lpszServerName[0])
    {
        lpwhs->lpszServerName = WININET_strdupW(lpszServerName);
        lpwhs->lpszHostName = WININET_strdupW(lpszServerName);
    }
    if (lpszUserName && lpszUserName[0])
        lpwhs->lpszUserName = WININET_strdupW(lpszUserName);
    if (lpszPassword && lpszPassword[0])
        lpwhs->lpszPassword = WININET_strdupW(lpszPassword);
    lpwhs->nServerPort = nServerPort;
    lpwhs->nHostPort = nServerPort;

    /* Don't send a handle created callback if this handle was created with InternetOpenUrl */
    if (!(lpwhs->hdr.dwInternalFlags & INET_OPENURL))
    {
        INTERNET_SendCallback(&hIC->hdr, dwContext,
                              INTERNET_STATUS_HANDLE_CREATED, &handle,
                              sizeof(handle));
    }

    bSuccess = TRUE;

lerror:
    if( lpwhs )
        WININET_Release( &lpwhs->hdr );

/*
 * an INTERNET_STATUS_REQUEST_COMPLETE is NOT sent here as per my tests on
 * windows
 */

    TRACE("%p --> %p (%p)\n", hIC, handle, lpwhs);
    return handle;
}


/***********************************************************************
 *           HTTP_OpenConnection (internal)
 *
 * Connect to a web server
 *
 * RETURNS
 *
 *   TRUE  on success
 *   FALSE on failure
 */
static BOOL HTTP_OpenConnection(LPWININETHTTPREQW lpwhr)
{
    BOOL bSuccess = FALSE;
    LPWININETHTTPSESSIONW lpwhs;
    LPWININETAPPINFOW hIC = NULL;
    char szaddr[32];

    TRACE("-->\n");


    if (NULL == lpwhr ||  lpwhr->hdr.htype != WH_HHTTPREQ)
    {
        INTERNET_SetLastError(ERROR_INVALID_PARAMETER);
        goto lend;
    }

    if (NETCON_connected(&lpwhr->netConnection))
    {
        bSuccess = TRUE;
        goto lend;
    }

    lpwhs = lpwhr->lpHttpSession;

    hIC = lpwhs->lpAppInfo;
    inet_ntop(lpwhs->socketAddress.sin_family, &lpwhs->socketAddress.sin_addr,
              szaddr, sizeof(szaddr));
    INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                          INTERNET_STATUS_CONNECTING_TO_SERVER,
                          szaddr,
                          strlen(szaddr)+1);

    if (!NETCON_create(&lpwhr->netConnection, lpwhs->socketAddress.sin_family,
                         SOCK_STREAM, 0))
    {
	WARN("Socket creation failed\n");
        goto lend;
    }

    if (!NETCON_connect(&lpwhr->netConnection, (struct sockaddr *)&lpwhs->socketAddress,
                      sizeof(lpwhs->socketAddress)))
       goto lend;

    if (lpwhr->hdr.dwFlags & INTERNET_FLAG_SECURE)
    {
        /* Note: we differ from Microsoft's WinINet here. they seem to have
         * a bug that causes no status callbacks to be sent when starting
         * a tunnel to a proxy server using the CONNECT verb. i believe our
         * behaviour to be more correct and to not cause any incompatibilities
         * because using a secure connection through a proxy server is a rare
         * case that would be hard for anyone to depend on */
        if (hIC->lpszProxy && !HTTP_SecureProxyConnect(lpwhr))
            goto lend;

        if (!NETCON_secure_connect(&lpwhr->netConnection, lpwhs->lpszHostName))
        {
            WARN("Couldn't connect securely to host\n");
            goto lend;
        }
    }

    INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                          INTERNET_STATUS_CONNECTED_TO_SERVER,
                          szaddr, strlen(szaddr)+1);

    bSuccess = TRUE;

lend:
    TRACE("%d <--\n", bSuccess);
    return bSuccess;
}


/***********************************************************************
 *           HTTP_clear_response_headers (internal)
 *
 * clear out any old response headers
 */
static void HTTP_clear_response_headers( LPWININETHTTPREQW lpwhr )
{
    DWORD i;

    for( i=0; i<lpwhr->nCustHeaders; i++)
    {
        if( !lpwhr->pCustHeaders[i].lpszField )
            continue;
        if( !lpwhr->pCustHeaders[i].lpszValue )
            continue;
        if ( lpwhr->pCustHeaders[i].wFlags & HDR_ISREQUEST )
            continue;
        HTTP_DeleteCustomHeader( lpwhr, i );
        i--;
    }
}

/***********************************************************************
 *           HTTP_GetResponseHeaders (internal)
 *
 * Read server response
 *
 * RETURNS
 *
 *   TRUE  on success
 *   FALSE on error
 */
static INT HTTP_GetResponseHeaders(LPWININETHTTPREQW lpwhr)
{
    INT cbreaks = 0;
    WCHAR buffer[MAX_REPLY_LEN];
    DWORD buflen = MAX_REPLY_LEN;
    BOOL bSuccess = FALSE;
    INT  rc = 0;
    static const WCHAR szCrLf[] = {'\r','\n',0};
    char bufferA[MAX_REPLY_LEN];
    LPWSTR status_code, status_text;
    DWORD cchMaxRawHeaders = 1024;
    LPWSTR lpszRawHeaders = HeapAlloc(GetProcessHeap(), 0, (cchMaxRawHeaders+1)*sizeof(WCHAR));
    DWORD cchRawHeaders = 0;

    TRACE("-->\n");

    /* clear old response headers (eg. from a redirect response) */
    HTTP_clear_response_headers( lpwhr );

    if (!NETCON_connected(&lpwhr->netConnection))
        goto lend;

    /*
     * HACK peek at the buffer
     */
    NETCON_recv(&lpwhr->netConnection, buffer, buflen, MSG_PEEK, &rc);

    /*
     * We should first receive 'HTTP/1.x nnn OK' where nnn is the status code.
     */
    buflen = MAX_REPLY_LEN;
    memset(buffer, 0, MAX_REPLY_LEN);
    if (!NETCON_getNextLine(&lpwhr->netConnection, bufferA, &buflen))
        goto lend;
    MultiByteToWideChar( CP_ACP, 0, bufferA, buflen, buffer, MAX_REPLY_LEN );

    /* regenerate raw headers */
    while (cchRawHeaders + buflen + strlenW(szCrLf) > cchMaxRawHeaders)
    {
        cchMaxRawHeaders *= 2;
        lpszRawHeaders = HeapReAlloc(GetProcessHeap(), 0, lpszRawHeaders, (cchMaxRawHeaders+1)*sizeof(WCHAR));
    }
    memcpy(lpszRawHeaders+cchRawHeaders, buffer, (buflen-1)*sizeof(WCHAR));
    cchRawHeaders += (buflen-1);
    memcpy(lpszRawHeaders+cchRawHeaders, szCrLf, sizeof(szCrLf));
    cchRawHeaders += sizeof(szCrLf)/sizeof(szCrLf[0])-1;
    lpszRawHeaders[cchRawHeaders] = '\0';

    /* split the version from the status code */
    status_code = strchrW( buffer, ' ' );
    if( !status_code )
        goto lend;
    *status_code++=0;

    /* split the status code from the status text */
    status_text = strchrW( status_code, ' ' );
    if( !status_text )
        goto lend;
    *status_text++=0;

    TRACE("version [%s] status code [%s] status text [%s]\n",
         debugstr_w(buffer), debugstr_w(status_code), debugstr_w(status_text) );

    HTTP_ProcessHeader(lpwhr, szStatus, status_code,
            HTTP_ADDHDR_FLAG_REPLACE);

    HeapFree(GetProcessHeap(),0,lpwhr->lpszVersion);
    HeapFree(GetProcessHeap(),0,lpwhr->lpszStatusText);

    lpwhr->lpszVersion= WININET_strdupW(buffer);
    lpwhr->lpszStatusText = WININET_strdupW(status_text);

    /* Parse each response line */
    do
    {
	buflen = MAX_REPLY_LEN;
        if (NETCON_getNextLine(&lpwhr->netConnection, bufferA, &buflen))
        {
            LPWSTR * pFieldAndValue;

            TRACE("got line %s, now interpreting\n", debugstr_a(bufferA));
            MultiByteToWideChar( CP_ACP, 0, bufferA, buflen, buffer, MAX_REPLY_LEN );

            while (cchRawHeaders + buflen + strlenW(szCrLf) > cchMaxRawHeaders)
            {
                cchMaxRawHeaders *= 2;
                lpszRawHeaders = HeapReAlloc(GetProcessHeap(), 0, lpszRawHeaders, (cchMaxRawHeaders+1)*sizeof(WCHAR));
            }
            memcpy(lpszRawHeaders+cchRawHeaders, buffer, (buflen-1)*sizeof(WCHAR));
            cchRawHeaders += (buflen-1);
            memcpy(lpszRawHeaders+cchRawHeaders, szCrLf, sizeof(szCrLf));
            cchRawHeaders += sizeof(szCrLf)/sizeof(szCrLf[0])-1;
            lpszRawHeaders[cchRawHeaders] = '\0';

            pFieldAndValue = HTTP_InterpretHttpHeader(buffer);
            if (!pFieldAndValue)
                break;

            HTTP_ProcessHeader(lpwhr, pFieldAndValue[0], pFieldAndValue[1], 
                HTTP_ADDREQ_FLAG_ADD );

            HTTP_FreeTokens(pFieldAndValue);
	}
	else
	{
	    cbreaks++;
	    if (cbreaks >= 2)
	       break;
	}
    }while(1);

    HeapFree(GetProcessHeap(), 0, lpwhr->lpszRawHeaders);
    lpwhr->lpszRawHeaders = lpszRawHeaders;
    TRACE("raw headers: %s\n", debugstr_w(lpszRawHeaders));
    bSuccess = TRUE;

lend:

    TRACE("<--\n");
    if (bSuccess)
        return rc;
    else
        return 0;
}


static void strip_spaces(LPWSTR start)
{
    LPWSTR str = start;
    LPWSTR end;

    while (*str == ' ' && *str != '\0')
        str++;

    if (str != start)
        memmove(start, str, sizeof(WCHAR) * (strlenW(str) + 1));

    end = start + strlenW(start) - 1;
    while (end >= start && *end == ' ')
    {
        *end = '\0';
        end--;
    }
}


/***********************************************************************
 *           HTTP_InterpretHttpHeader (internal)
 *
 * Parse server response
 *
 * RETURNS
 *
 *   Pointer to array of field, value, NULL on success.
 *   NULL on error.
 */
static LPWSTR * HTTP_InterpretHttpHeader(LPCWSTR buffer)
{
    LPWSTR * pTokenPair;
    LPWSTR pszColon;
    INT len;

    pTokenPair = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*pTokenPair)*3);

    pszColon = strchrW(buffer, ':');
    /* must have two tokens */
    if (!pszColon)
    {
        HTTP_FreeTokens(pTokenPair);
        if (buffer[0])
            TRACE("No ':' in line: %s\n", debugstr_w(buffer));
        return NULL;
    }

    pTokenPair[0] = HeapAlloc(GetProcessHeap(), 0, (pszColon - buffer + 1) * sizeof(WCHAR));
    if (!pTokenPair[0])
    {
        HTTP_FreeTokens(pTokenPair);
        return NULL;
    }
    memcpy(pTokenPair[0], buffer, (pszColon - buffer) * sizeof(WCHAR));
    pTokenPair[0][pszColon - buffer] = '\0';

    /* skip colon */
    pszColon++;
    len = strlenW(pszColon);
    pTokenPair[1] = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
    if (!pTokenPair[1])
    {
        HTTP_FreeTokens(pTokenPair);
        return NULL;
    }
    memcpy(pTokenPair[1], pszColon, (len + 1) * sizeof(WCHAR));

    strip_spaces(pTokenPair[0]);
    strip_spaces(pTokenPair[1]);

    TRACE("field(%s) Value(%s)\n", debugstr_w(pTokenPair[0]), debugstr_w(pTokenPair[1]));
    return pTokenPair;
}

/***********************************************************************
 *           HTTP_ProcessHeader (internal)
 *
 * Stuff header into header tables according to <dwModifier>
 *
 */

#define COALESCEFLAGS (HTTP_ADDHDR_FLAG_COALESCE|HTTP_ADDHDR_FLAG_COALESCE_WITH_COMMA|HTTP_ADDHDR_FLAG_COALESCE_WITH_SEMICOLON)

static BOOL HTTP_ProcessHeader(LPWININETHTTPREQW lpwhr, LPCWSTR field, LPCWSTR value, DWORD dwModifier)
{
    LPHTTPHEADERW lphttpHdr = NULL;
    BOOL bSuccess = FALSE;
    INT index = -1;
    BOOL request_only = dwModifier & HTTP_ADDHDR_FLAG_REQ;

    TRACE("--> %s: %s - 0x%08x\n", debugstr_w(field), debugstr_w(value), dwModifier);

    /* REPLACE wins out over ADD */
    if (dwModifier & HTTP_ADDHDR_FLAG_REPLACE)
        dwModifier &= ~HTTP_ADDHDR_FLAG_ADD;
    
    if (dwModifier & HTTP_ADDHDR_FLAG_ADD)
        index = -1;
    else
        index = HTTP_GetCustomHeaderIndex(lpwhr, field, 0, request_only);

    if (index >= 0)
    {
        if (dwModifier & HTTP_ADDHDR_FLAG_ADD_IF_NEW)
        {
            return FALSE;
        }
        lphttpHdr = &lpwhr->pCustHeaders[index];
    }
    else if (value)
    {
        HTTPHEADERW hdr;

        hdr.lpszField = (LPWSTR)field;
        hdr.lpszValue = (LPWSTR)value;
        hdr.wFlags = hdr.wCount = 0;

        if (dwModifier & HTTP_ADDHDR_FLAG_REQ)
            hdr.wFlags |= HDR_ISREQUEST;

        return HTTP_InsertCustomHeader(lpwhr, &hdr);
    }
    /* no value to delete */
    else return TRUE;

    if (dwModifier & HTTP_ADDHDR_FLAG_REQ)
	    lphttpHdr->wFlags |= HDR_ISREQUEST;
    else
        lphttpHdr->wFlags &= ~HDR_ISREQUEST;

    if (dwModifier & HTTP_ADDHDR_FLAG_REPLACE)
    {
        HTTP_DeleteCustomHeader( lpwhr, index );

        if (value)
        {
            HTTPHEADERW hdr;

            hdr.lpszField = (LPWSTR)field;
            hdr.lpszValue = (LPWSTR)value;
            hdr.wFlags = hdr.wCount = 0;

            if (dwModifier & HTTP_ADDHDR_FLAG_REQ)
                hdr.wFlags |= HDR_ISREQUEST;

            return HTTP_InsertCustomHeader(lpwhr, &hdr);
        }

        return TRUE;
    }
    else if (dwModifier & COALESCEFLAGS)
    {
        LPWSTR lpsztmp;
        WCHAR ch = 0;
        INT len = 0;
        INT origlen = strlenW(lphttpHdr->lpszValue);
        INT valuelen = strlenW(value);

        if (dwModifier & HTTP_ADDHDR_FLAG_COALESCE_WITH_COMMA)
        {
            ch = ',';
            lphttpHdr->wFlags |= HDR_COMMADELIMITED;
        }
        else if (dwModifier & HTTP_ADDHDR_FLAG_COALESCE_WITH_SEMICOLON)
        {
            ch = ';';
            lphttpHdr->wFlags |= HDR_COMMADELIMITED;
        }

        len = origlen + valuelen + ((ch > 0) ? 2 : 0);

        lpsztmp = HeapReAlloc(GetProcessHeap(), 0, lphttpHdr->lpszValue, (len+1)*sizeof(WCHAR));
        if (lpsztmp)
        {
            lphttpHdr->lpszValue = lpsztmp;
    /* FIXME: Increment lphttpHdr->wCount. Perhaps lpszValue should be an array */
            if (ch > 0)
            {
                lphttpHdr->lpszValue[origlen] = ch;
                origlen++;
                lphttpHdr->lpszValue[origlen] = ' ';
                origlen++;
            }

            memcpy(&lphttpHdr->lpszValue[origlen], value, valuelen*sizeof(WCHAR));
            lphttpHdr->lpszValue[len] = '\0';
            bSuccess = TRUE;
        }
        else
        {
            WARN("HeapReAlloc (%d bytes) failed\n",len+1);
            INTERNET_SetLastError(ERROR_OUTOFMEMORY);
        }
    }
    TRACE("<-- %d\n",bSuccess);
    return bSuccess;
}


/***********************************************************************
 *           HTTP_CloseConnection (internal)
 *
 * Close socket connection
 *
 */
static void HTTP_CloseConnection(LPWININETHANDLEHEADER hdr)
{
    LPWININETHTTPREQW lpwhr = (LPWININETHTTPREQW) hdr;
    LPWININETHTTPSESSIONW lpwhs = NULL;
    LPWININETAPPINFOW hIC = NULL;

    TRACE("%p\n",lpwhr);

    if (!NETCON_connected(&lpwhr->netConnection))
        return;

    if (lpwhr->pAuthInfo)
    {
        DeleteSecurityContext(&lpwhr->pAuthInfo->ctx);
        FreeCredentialsHandle(&lpwhr->pAuthInfo->cred);

        HeapFree(GetProcessHeap(), 0, lpwhr->pAuthInfo->auth_data);
        HeapFree(GetProcessHeap(), 0, lpwhr->pAuthInfo->scheme);
        HeapFree(GetProcessHeap(), 0, lpwhr->pAuthInfo);
        lpwhr->pAuthInfo = NULL;
    }
    if (lpwhr->pProxyAuthInfo)
    {
        DeleteSecurityContext(&lpwhr->pProxyAuthInfo->ctx);
        FreeCredentialsHandle(&lpwhr->pProxyAuthInfo->cred);

        HeapFree(GetProcessHeap(), 0, lpwhr->pProxyAuthInfo->auth_data);
        HeapFree(GetProcessHeap(), 0, lpwhr->pProxyAuthInfo->scheme);
        HeapFree(GetProcessHeap(), 0, lpwhr->pProxyAuthInfo);
        lpwhr->pProxyAuthInfo = NULL;
    }

    lpwhs = lpwhr->lpHttpSession;
    hIC = lpwhs->lpAppInfo;

    INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                          INTERNET_STATUS_CLOSING_CONNECTION, 0, 0);

    NETCON_close(&lpwhr->netConnection);

    INTERNET_SendCallback(&lpwhr->hdr, lpwhr->hdr.dwContext,
                          INTERNET_STATUS_CONNECTION_CLOSED, 0, 0);
}


/***********************************************************************
 *           HTTP_FinishedReading (internal)
 *
 * Called when all content from server has been read by client.
 *
 */
BOOL HTTP_FinishedReading(LPWININETHTTPREQW lpwhr)
{
    WCHAR szConnectionResponse[20];
    DWORD dwBufferSize = sizeof(szConnectionResponse);

    TRACE("\n");

    if (!HTTP_HttpQueryInfoW(lpwhr, HTTP_QUERY_CONNECTION, szConnectionResponse,
                             &dwBufferSize, NULL) ||
        strcmpiW(szConnectionResponse, szKeepAlive))
    {
        HTTP_CloseConnection(&lpwhr->hdr);
    }

    /* FIXME: store data in the URL cache here */

    return TRUE;
}

/***********************************************************************
 *           HTTP_CloseHTTPRequestHandle (internal)
 *
 * Deallocate request handle
 *
 */
static void HTTP_CloseHTTPRequestHandle(LPWININETHANDLEHEADER hdr)
{
    DWORD i;
    LPWININETHTTPREQW lpwhr = (LPWININETHTTPREQW) hdr;

    TRACE("\n");

    WININET_Release(&lpwhr->lpHttpSession->hdr);

    HeapFree(GetProcessHeap(), 0, lpwhr->lpszPath);
    HeapFree(GetProcessHeap(), 0, lpwhr->lpszVerb);
    HeapFree(GetProcessHeap(), 0, lpwhr->lpszRawHeaders);
    HeapFree(GetProcessHeap(), 0, lpwhr->lpszVersion);
    HeapFree(GetProcessHeap(), 0, lpwhr->lpszStatusText);

    for (i = 0; i < lpwhr->nCustHeaders; i++)
    {
        HeapFree(GetProcessHeap(), 0, lpwhr->pCustHeaders[i].lpszField);
        HeapFree(GetProcessHeap(), 0, lpwhr->pCustHeaders[i].lpszValue);
    }

    HeapFree(GetProcessHeap(), 0, lpwhr->pCustHeaders);
    HeapFree(GetProcessHeap(), 0, lpwhr);
}


/***********************************************************************
 *           HTTP_CloseHTTPSessionHandle (internal)
 *
 * Deallocate session handle
 *
 */
static void HTTP_CloseHTTPSessionHandle(LPWININETHANDLEHEADER hdr)
{
    LPWININETHTTPSESSIONW lpwhs = (LPWININETHTTPSESSIONW) hdr;

    TRACE("%p\n", lpwhs);

    WININET_Release(&lpwhs->lpAppInfo->hdr);

    HeapFree(GetProcessHeap(), 0, lpwhs->lpszHostName);
    HeapFree(GetProcessHeap(), 0, lpwhs->lpszServerName);
    HeapFree(GetProcessHeap(), 0, lpwhs->lpszPassword);
    HeapFree(GetProcessHeap(), 0, lpwhs->lpszUserName);
    HeapFree(GetProcessHeap(), 0, lpwhs);
}


/***********************************************************************
 *           HTTP_GetCustomHeaderIndex (internal)
 *
 * Return index of custom header from header array
 *
 */
static INT HTTP_GetCustomHeaderIndex(LPWININETHTTPREQW lpwhr, LPCWSTR lpszField,
                                     int requested_index, BOOL request_only)
{
    DWORD index;

    TRACE("%s\n", debugstr_w(lpszField));

    for (index = 0; index < lpwhr->nCustHeaders; index++)
    {
        if (strcmpiW(lpwhr->pCustHeaders[index].lpszField, lpszField))
            continue;

        if (request_only && !(lpwhr->pCustHeaders[index].wFlags & HDR_ISREQUEST))
            continue;

        if (!request_only && (lpwhr->pCustHeaders[index].wFlags & HDR_ISREQUEST))
            continue;

        if (requested_index == 0)
            break;
        requested_index --;
    }

    if (index >= lpwhr->nCustHeaders)
	index = -1;

    TRACE("Return: %d\n", index);
    return index;
}


/***********************************************************************
 *           HTTP_InsertCustomHeader (internal)
 *
 * Insert header into array
 *
 */
static BOOL HTTP_InsertCustomHeader(LPWININETHTTPREQW lpwhr, LPHTTPHEADERW lpHdr)
{
    INT count;
    LPHTTPHEADERW lph = NULL;
    BOOL r = FALSE;

    TRACE("--> %s: %s\n", debugstr_w(lpHdr->lpszField), debugstr_w(lpHdr->lpszValue));
    count = lpwhr->nCustHeaders + 1;
    if (count > 1)
	lph = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, lpwhr->pCustHeaders, sizeof(HTTPHEADERW) * count);
    else
	lph = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(HTTPHEADERW) * count);

    if (NULL != lph)
    {
	lpwhr->pCustHeaders = lph;
        lpwhr->pCustHeaders[count-1].lpszField = WININET_strdupW(lpHdr->lpszField);
        lpwhr->pCustHeaders[count-1].lpszValue = WININET_strdupW(lpHdr->lpszValue);
        lpwhr->pCustHeaders[count-1].wFlags = lpHdr->wFlags;
        lpwhr->pCustHeaders[count-1].wCount= lpHdr->wCount;
	lpwhr->nCustHeaders++;
        r = TRUE;
    }
    else
    {
        INTERNET_SetLastError(ERROR_OUTOFMEMORY);
    }

    return r;
}


/***********************************************************************
 *           HTTP_DeleteCustomHeader (internal)
 *
 * Delete header from array
 *  If this function is called, the indexs may change.
 */
static BOOL HTTP_DeleteCustomHeader(LPWININETHTTPREQW lpwhr, DWORD index)
{
    if( lpwhr->nCustHeaders <= 0 )
        return FALSE;
    if( index >= lpwhr->nCustHeaders )
        return FALSE;
    lpwhr->nCustHeaders--;

    memmove( &lpwhr->pCustHeaders[index], &lpwhr->pCustHeaders[index+1],
             (lpwhr->nCustHeaders - index)* sizeof(HTTPHEADERW) );
    memset( &lpwhr->pCustHeaders[lpwhr->nCustHeaders], 0, sizeof(HTTPHEADERW) );

    return TRUE;
}


/***********************************************************************
 *           HTTP_VerifyValidHeader (internal)
 *
 * Verify the given header is not invalid for the given http request
 *
 */
static BOOL HTTP_VerifyValidHeader(LPWININETHTTPREQW lpwhr, LPCWSTR field)
{
    BOOL rc = TRUE;

    /* Accept-Encoding is stripped from HTTP/1.0 requests. It is invalid */
    if (strcmpiW(field,szAccept_Encoding)==0)
        return FALSE;

    return rc;
}

/***********************************************************************
 *          IsHostInProxyBypassList (@)
 *
 * Undocumented
 *
 */
BOOL WINAPI IsHostInProxyBypassList(DWORD flags, LPCSTR szHost, DWORD length)
{
   FIXME("STUB: flags=%d host=%s length=%d\n",flags,szHost,length);
   return FALSE;
}