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pxcookie.cpp：源码内容
							/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: pxcookie.cpp,v 1.2.24.1 2004/07/09 01:54:51 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
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 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
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 * contents of the file.
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 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
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 * this file only under the terms of the GPL, and not to allow others
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 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
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 * ***** END LICENSE BLOCK ***** */
// include
#include "hxtypes.h"
#include "hxcom.h"
#include "hxcomm.h"
#include "ihxpckts.h"
// hxmisc
#include "chxpckts.h"
#include "hxurl.h"
// pxcomlib
#include "pxcookie.h"
// hxdebug
#include "hxheap.h"
#ifdef _DEBUG
#undef HX_THIS_FILE		
static char HX_THIS_FILE[] = __FILE__;
#endif
char* reverse_string(const char* pszStr)
{
    char* pszRev = NULL;
    if (pszStr)
    {
        INT32 lLen = strlen(pszStr);
        pszRev = new char [lLen + 1];
        if (pszRev)
        {
            const char* pszStrCopy = pszStr + lLen - 1;
            char*       pszRevCopy = pszRev;
            while (pszStrCopy >= pszStr)
            {
                *pszRevCopy++ = *pszStrCopy--;
            }
            *pszRevCopy = '';
        }
    }
    return pszRev;
}
HX_RESULT MakeDomainFromHost(IHXBuffer*             pHostStr,
                             IHXCommonClassFactory* pFactory,
                             REF(IHXBuffer*)        rpDomainStr)
{
    HX_RESULT retVal = HXR_OK;
    if (pHostStr && pFactory)
    {
        // We will attempt to construct a domain from the host
        //
        const char* pszHost   = (const char*) pHostStr->GetBuffer();
        INT32       lHostLen  = strlen(pszHost);
        char*       pszDomain = NULL;
        // First, create a string which is a reversed copy of the pHostStr
        char* pszHostRev = reverse_string(pszHost);
        if (pszHostRev)
        {
            // Now search the reversed string for two dots
            char* pszRightMostDot = strchr(pszHostRev, '.');
            if (pszRightMostDot)
            {
                char* pszSecondRightMostDot = strchr(pszRightMostDot + 1, '.');
                if (pszSecondRightMostDot)
                {
                    // We found two dots from the right in the host,
                    // so we will use that as the domain. End the reversed
                    // string right after the second dot.
                    *(pszSecondRightMostDot + 1) = '';
                    // Re-reverse the string
                    pszDomain = reverse_string((const char*) pszHostRev);
                }
                else
                {
                    // We only found one dot from the right in the host,
                    // so we prepend a dot
                    pszDomain = new char [lHostLen + 2];
                    if (pszDomain)
                    {
                        strcpy(pszDomain, "."); /* Flawfinder: ignore */
                        strcat(pszDomain, pszHost); /* Flawfinder: ignore */
                    }
                }
            }
            else
            {
                // There are no dots in the host at all,
                // so we will pass the host straight through
                pszDomain = new char [lHostLen + 1];
                if (pszDomain)
                {
                    strcpy(pszDomain, pszHost); /* Flawfinder: ignore */
                }
            }
        }
        HX_VECTOR_DELETE(pszHostRev);
        if (pszDomain)
        {
            // Create an IHXBuffer
            IHXBuffer* pBuffer = NULL;
            retVal              = pFactory->CreateInstance(CLSID_IHXBuffer,
                                                           (void**) &pBuffer);
            if (SUCCEEDED(retVal))
            {
                // Copy the domain to the IHXBuffer
                retVal = pBuffer->Set((const unsigned char*) pszDomain, strlen(pszDomain) + 1);
                if (SUCCEEDED(retVal))
                {
                    // Copy the out parameter
                    HX_RELEASE(rpDomainStr);
                    rpDomainStr = pBuffer;
                    rpDomainStr->AddRef();
                }
            }
            HX_RELEASE(pBuffer);
        }
        else
        {
            retVal = HXR_FAIL;
        }
        HX_VECTOR_DELETE(pszDomain);
    }
    else
    {
        retVal = HXR_INVALID_PARAMETER;
    }
    return retVal;
}
HX_RESULT GetHostAndPathFromURL(const char*             pszURL,
                                IHXCommonClassFactory* pFactory,
                                REF(IHXBuffer*)        rpHostStr,
                                REF(IHXBuffer*)        rpPathStr)
{
    HX_RESULT retVal = HXR_OK;
    if (pszURL && pFactory)
    {
        // Create a CHXURL from the url
        CHXURL* pURL = new CHXURL(pszURL);
        if (pURL)
        {
            retVal = pURL->GetLastError();
            if (SUCCEEDED(retVal))
            {
                // Get the properties from the CHXURL
                IHXValues* pHeader = pURL->GetProperties();
                if (pHeader)
                {
                    // Get the host from CHXURL
                    IHXBuffer* pHostStr = NULL;
                    retVal               = pHeader->GetPropertyBuffer(PROPERTY_HOST, pHostStr);
                    if (SUCCEEDED(retVal))
                    {
                        // Make a domain from the host
                        IHXBuffer* pDomainStr = NULL;
                        retVal                 = MakeDomainFromHost(pHostStr, pFactory, pDomainStr);
                        if (SUCCEEDED(retVal))
                        {
                            // Always use "/" for the path
                            IHXBuffer* pPathStr = NULL;
                            retVal               = pFactory->CreateInstance(CLSID_IHXBuffer,
                                                                            (void**) &pPathStr);
                            if (SUCCEEDED(retVal))
                            {
                                const char* pszPath = "/";
                                retVal = pPathStr->Set((const unsigned char*) pszPath, strlen(pszPath) + 1);
                                if (SUCCEEDED(retVal))
                                {
                                    HX_RELEASE(rpHostStr);
                                    rpHostStr = pDomainStr;
                                    rpHostStr->AddRef();
                                    HX_RELEASE(rpPathStr);
                                    rpPathStr = pPathStr;
                                    rpPathStr->AddRef();
                                }
                            }
                            HX_RELEASE(pPathStr);
                        }
                        HX_RELEASE(pDomainStr);
                    }
                    HX_RELEASE(pHostStr);
                }
                else
                {
                    retVal = HXR_FAIL;
                }
                HX_RELEASE(pHeader);
            }
        }
        else
        {
            retVal = HXR_OUTOFMEMORY;
        }
        HX_DELETE(pURL);
    }
    else
    {
        retVal = HXR_INVALID_PARAMETER;
    }
    return retVal;
}

						