MimeFilter 实现, 纯C++

来源：互联网发布：python集成开发工具编辑：程序博客网时间：2024/05/02 18:47

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////#include "../NSimple.h"#include "../class/stdEx.h"/*Yofoo-HtmlFilterCode ByYofooLast Edit: 2010-12-10*/#define MIDL_DEFINE_GUID(type,name,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) /const type name = {l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}}MIDL_DEFINE_GUID(CLSID, CLSID_HtmlFilter, 0x6F666F59, 0x2D6F, 0x7448, 0x6D, 0x6C, 0x46, 0x69, 0x6C, 0x74, 0x65, 0x72);#if 0#define MEM_TRACEATLTRACE#else#define MEM_TRACE__noop#endif#if 0#define FLT_TRACEATLTRACE#else#define FLT_TRACE__noop#endif#define FunInlineDefine{return S_OK;}class CoInterface : public IClassFactory{public:STDMETHOD(GetTypeInfoCount)(unsigned int*)FunInlineDefineSTDMETHOD(GetTypeInfo)(unsigned int, LCID, ITypeInfo**)FunInlineDefineSTDMETHOD(GetIDsOfNames)(REFIID, LPOLESTR*, unsigned int, LCID, DISPID*)FunInlineDefineSTDMETHOD(Invoke)(DISPID, REFIID, LCID, unsigned short, DISPPARAMS*,VARIANT*, EXCEPINFO*, unsigned int*)FunInlineDefineSTDMETHOD(Start)(LPCWSTR szUrl, IInternetProtocolSink *pOIProtSink, IInternetBindInfo *pOIBindInfo, DWORD grfPI, HANDLE_PTR dwReserved)FunInlineDefineSTDMETHOD(Continue)(PROTOCOLDATA *pProtocolData)FunInlineDefineSTDMETHOD(Abort)(HRESULT hrReason, DWORD dwOptions)FunInlineDefineSTDMETHOD(Terminate)(DWORD dwOptions)FunInlineDefineSTDMETHOD(Suspend)()FunInlineDefineSTDMETHOD(Resume)()FunInlineDefineSTDMETHOD(Read)(void *pv, ULONG cb, ULONG *pcbRead)FunInlineDefineSTDMETHOD(Seek)(LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition)FunInlineDefineSTDMETHOD(UnlockRequest)()FunInlineDefineSTDMETHOD(LockRequest)(DWORD dwOptions)FunInlineDefineSTDMETHOD (ReportData)( DWORD grfBSCF, ULONG ulProgress, ULONG ulProgressMax)FunInlineDefineSTDMETHOD (ReportProgress)( ULONG ulStatusCode, LPCWSTR szStatusText)FunInlineDefineSTDMETHOD (ReportResult)( HRESULT hrResult, DWORD dwError, LPCWSTR szResult)FunInlineDefineSTDMETHOD (Switch)( PROTOCOLDATA *pProtocolData)FunInlineDefineSTDMETHOD (SetPriority)(LONG nPriority)FunInlineDefineSTDMETHOD (GetPriority)(LONG * pnPriority)FunInlineDefinevirtual ~CoInterface(){}};class CHtmlFilter;//#define FunInlineDefine;#define DefAddRefFun/#define Co_AgnetFun0(_CoVar, _FunRet, _FunName)/_FunRet STDMETHODCALLTYPE _FunName()/{/return _CoVar->_FunName();/}#define Co_AgnetFun1(_CoVar, _FunRet, _FunName, _P1Type, _P1)/_FunRet STDMETHODCALLTYPE _FunName(_P1Type _P1)/{/return _CoVar->_FunName(_P1);/}#define Co_AgnetFun2(_CoVar, _FunRet, _FunName, _P1Type, _P1, _P2Type, _P2)/_FunRet STDMETHODCALLTYPE _FunName(_P1Type _P1, _P2Type _P2)/{/return _CoVar->_FunName(_P1, _P2);/}#define Co_AgnetFun3(_CoVar, _FunRet, _FunName, _P1Type, _P1, _P2Type, _P2, _P3Type, _P3)/_FunRet STDMETHODCALLTYPE _FunName(_P1Type _P1, _P2Type _P2, _P3Type _P3)/{/return _CoVar->_FunName(_P1, _P2, _P3);/}#define Co_AgnetFun4(_CoVar, _FunRet, _FunName, _P1Type, _P1, _P2Type, _P2, _P3Type, _P3, _P4Type, _P4)/_FunRet STDMETHODCALLTYPE _FunName(_P1Type _P1, _P2Type _P2, _P3Type _P3, _P4Type _P4)/{/return _CoVar->_FunName(_P1, _P2, _P3, _P4);/}#define Co_AgnetFun5(_CoVar, _FunRet, _FunName, _P1Type, _P1, _P2Type, _P2, _P3Type, _P3, _P4Type, _P4, _P5Type, _P5)/_FunRet STDMETHODCALLTYPE _FunName(_P1Type _P1, _P2Type _P2, _P3Type _P3, _P4Type _P4, _P5Type _P5)/{/return _CoVar->_FunName(_P1, _P2, _P3, _P4, _P5);/}#define Co_AgnetFun8(_CoVar, _FunRet, _FunName, _P1Type, _P1, _P2Type, _P2, _P3Type, _P3, _P4Type, _P4, _P5Type, _P5, _P6Type, _P6, _P7Type, _P7, _P8Type, _P8)/_FunRet STDMETHODCALLTYPE _FunName(_P1Type _P1, _P2Type _P2, _P3Type _P3, _P4Type _P4, _P5Type _P5, _P6Type _P6, _P7Type _P7, _P8Type _P8)/{/return _CoVar->_FunName(_P1, _P2, _P3, _P4, _P5, _P6, _P7, _P8);/}#define CoAgentJmp0(_CoVar, _FunRet, _FunName)/_FunRet STDMETHODCALLTYPE _FunName()/{/__asm jmp _CoVar->_FunName;/}class CHtmlFilter_IDispatch: public IDispatch{public:CHtmlFilter_IDispatch(CoInterface *pFacClass){m_pFacClass = pFacClass;}CoInterface*m_pFacClass;Co_AgnetFun2(m_pFacClass, HRESULT, QueryInterface, REFIID, riid, LPVOID*, ppv);Co_AgnetFun0(m_pFacClass, ULONG, AddRef);Co_AgnetFun0(m_pFacClass, ULONG, Release);Co_AgnetFun1(m_pFacClass, HRESULT, GetTypeInfoCount, unsigned int*, pCount);Co_AgnetFun3(m_pFacClass, HRESULT, GetTypeInfo, unsigned int, iTInfo, LCID, lcid, ITypeInfo**, ppTInfo);Co_AgnetFun5(m_pFacClass, HRESULT, GetIDsOfNames, REFIID, riid, LPOLESTR *, rgszNames, UINT, cNames, LCID, lcid, DISPID *, rgDispId);Co_AgnetFun8(m_pFacClass, HRESULT, Invoke, DISPID, dispIdMember, REFIID, riid, LCID, lcid, WORD, wFlags, DISPPARAMS *, pDispParams, VARIANT *, pVarResult, EXCEPINFO *, pExcepInfo, UINT *, puArgErr);};class CHtmlFilter_IInternetPriority : public IInternetPriority{public:CHtmlFilter_IInternetPriority(CoInterface *pFacClass){m_pFacClass = pFacClass;}CoInterface*m_pFacClass;Co_AgnetFun2(m_pFacClass, HRESULT, QueryInterface, REFIID, riid, LPVOID*, ppv);Co_AgnetFun0(m_pFacClass, ULONG, AddRef);Co_AgnetFun0(m_pFacClass, ULONG, Release);Co_AgnetFun1(m_pFacClass, HRESULT, SetPriority, LONG, nPriority);Co_AgnetFun1(m_pFacClass, HRESULT, GetPriority, LONG *, pnPriority);};class CHtmlFilter_IInternetProtocol: public IInternetProtocol{public:CHtmlFilter_IInternetProtocol(CoInterface * pFacClass){m_pFacClass = pFacClass;}CoInterface*m_pFacClass;Co_AgnetFun2(m_pFacClass, HRESULT, QueryInterface, REFIID, riid, LPVOID*, ppv);Co_AgnetFun0(m_pFacClass, ULONG, AddRef);Co_AgnetFun0(m_pFacClass, ULONG, Release);//IInternetProtocolRootCo_AgnetFun5(m_pFacClass, HRESULT, Start, LPCWSTR, szUrl,IInternetProtocolSink *, pOIProtSink, IInternetBindInfo *, pOIBindInfo, DWORD, grfPI, HANDLE_PTR, dwReserved);Co_AgnetFun1(m_pFacClass, HRESULT, Continue, PROTOCOLDATA *, pProtocolData);Co_AgnetFun2(m_pFacClass, HRESULT, Abort, HRESULT, hrReason, DWORD, dwOptions);Co_AgnetFun1(m_pFacClass, HRESULT, Terminate, DWORD, dwOptions);Co_AgnetFun0(m_pFacClass, HRESULT, Suspend);Co_AgnetFun0(m_pFacClass, HRESULT, Resume);//IInternetProtocolCo_AgnetFun3(m_pFacClass, HRESULT, Read, void *, pv, ULONG, cb, ULONG *, pcbRead);Co_AgnetFun3(m_pFacClass, HRESULT, Seek, LARGE_INTEGER, dlibMove, DWORD, dwOrigin, ULARGE_INTEGER *, plibNewPosition);Co_AgnetFun0(m_pFacClass, HRESULT, UnlockRequest);Co_AgnetFun1(m_pFacClass, HRESULT, LockRequest, DWORD, dwOptions);};class CHtmlFilter_IInternetProtocolSink: public IInternetProtocolSink{public:CHtmlFilter_IInternetProtocolSink(CoInterface *pFacClass){m_pFacClass = pFacClass;}CoInterface*m_pFacClass;Co_AgnetFun2(m_pFacClass, HRESULT, QueryInterface, REFIID, riid, LPVOID*, ppv);Co_AgnetFun0(m_pFacClass, ULONG, AddRef);Co_AgnetFun0(m_pFacClass, ULONG, Release);Co_AgnetFun3(m_pFacClass, HRESULT, ReportData, DWORD, grfBSCF, ULONG, ulProgress, ULONG, ulProgressMax);Co_AgnetFun2(m_pFacClass, HRESULT, ReportProgress, ULONG, ulStatusCode, LPCWSTR, szStatusText);Co_AgnetFun3(m_pFacClass, HRESULT, ReportResult, HRESULT, hrResult, DWORD, dwError, LPCWSTR, szResult);Co_AgnetFun1(m_pFacClass, HRESULT, Switch, PROTOCOLDATA *, pProtocolData);};typedef enum _FilterType{Filter_namespcae= 0x1000,Filter_Mime= 0x2000}FilterType;class CHtmlFilter: public CoInterface{public:CHtmlFilter(int nFilterType = Filter_Mime): m_xIDispatch(this), m_xIInternetProtocol(this), m_xIInternetProtocolSink(this), m_xIInternetPriority(this){m_nRefCount = 0;m_nFilterType = nFilterType;}virtual ~CHtmlFilter(){}CHtmlFilter_IDispatchm_xIDispatch;CHtmlFilter_IInternetProtocolm_xIInternetProtocol;CHtmlFilter_IInternetProtocolSinkm_xIInternetProtocolSink;CHtmlFilter_IInternetPrioritym_xIInternetPriority;CComPtr<IInternetProtocol>m_UrlMonProtocol;CComPtr<IInternetProtocolSink>m_UrlMonProtocolSink;std::wstringm_sCacheFilePath;std::wstringm_sCurUrl;std::wstringm_sCurMime;LONGm_nRefCount;intm_nFilterType;STDMETHOD(QueryInterface)(REFIID riid, LPVOID* ppv){if(IsEqualIID(riid, IID_IUnknown)){*ppv = this;AddRef();}else if(IsEqualIID(riid, IID_IDispatch)){*ppv = &m_xIDispatch;}else if(IsEqualIID(riid, IID_IInternetProtocol)){*ppv = &m_xIInternetProtocol;}else if(IsEqualIID(riid, IID_IInternetProtocolSink)){*ppv = &m_xIInternetProtocolSink;}else if(IsEqualIID(riid, IID_IInternetPriority)){*ppv = &m_xIInternetPriority;}else{assert(0);return ResultFromScode(E_NOINTERFACE);}AddRef();return S_OK;}STDMETHOD_(ULONG, AddRef)(){return InterlockedIncrement(&m_nRefCount);}STDMETHOD_(ULONG, Release)(){intnRef;nRef = InterlockedDecrement(&m_nRefCount);if(nRef <= 0){MEM_TRACE("delete: %08X/n", this);delete this;}return nRef;}virtual /* [local] */ HRESULT STDMETHODCALLTYPE CreateInstance( /* [unique][in] */ IUnknown *pUnkOuter,/* [in] */ REFIID riid,/* [iid_is][out] */ void **ppvObject){CHtmlFilter*pFacClass;HRESULThr;pFacClass = new CHtmlFilter(m_nFilterType);MEM_TRACE("New: %08X/n", pFacClass);hr = pFacClass->QueryInterface(riid, ppvObject);if(FAILED(hr))delete pFacClass;return hr;}virtual /* [local] */ HRESULT STDMETHODCALLTYPE LockServer( /* [in] */ BOOL fLock){return S_OK;}public://IInternetProtocolRootSTDMETHOD(Start)(LPCWSTR szUrl,IInternetProtocolSink *pOIProtSink,IInternetBindInfo *pOIBindInfo,DWORD grfPI, HANDLE_PTR dwReserved){#defineOT_MAX64HRESULThr;BINDINFOBdInfo;ULONGuFetched;LPOLESTRpzUrl[OT_MAX+1];DWORDdwBdf;PROTOCOLFILTERDATA*pFiltDat;m_UrlMonProtocolSink = pOIProtSink;memset(pzUrl, 0, sizeof(pzUrl));hr = pOIBindInfo->GetBindString(BINDSTRING_ACCEPT_MIMES, pzUrl, OT_MAX, &uFetched);if(uFetched){if(wcscmp(pzUrl[0], L"*/*") != 0)FLT_TRACE("BINDSTRING_ACCEPT_MIMES: %S/n", pzUrl[0]);}memset(pzUrl, 0, sizeof(pzUrl));hr = pOIBindInfo->GetBindString(BINDSTRING_USER_AGENT, pzUrl, OT_MAX, &uFetched);if(uFetched && pzUrl[0])FLT_TRACE("BINDSTRING_USER_AGENT: %S/n", pzUrl[0]);memset(pzUrl, 0, sizeof(pzUrl));hr = pOIBindInfo->GetBindString(BINDSTRING_POST_COOKIE, pzUrl, OT_MAX, &uFetched);if(uFetched && pzUrl[0])FLT_TRACE("BINDSTRING_POST_COOKIE: %S/n", pzUrl[0]);memset(pzUrl, 0, sizeof(pzUrl));hr = pOIBindInfo->GetBindString(BINDSTRING_POST_DATA_MIME, pzUrl, OT_MAX, &uFetched);if(uFetched && pzUrl[0])FLT_TRACE("BINDSTRING_POST_DATA_MIME: %S/n", pzUrl[0]);memset(&BdInfo, 0, sizeof(BdInfo));BdInfo.cbSize = sizeof(BdInfo);hr = pOIBindInfo->GetBindInfo(&dwBdf, &BdInfo);if(m_nFilterType & Filter_namespcae){CHARszCurUrl[1024];FLT_TRACE("IInternetProtocolRoot::Start: %S/n", szUrl);return INET_E_USE_DEFAULT_PROTOCOLHANDLER;NStr::WChar2Char((WCHAR *)szUrl, szCurUrl, sizeof(szCurUrl));if(NStr::StrTailCmp(szCurUrl, ".js") == 0 ||NStr::StrTailCmp(szCurUrl, ".jpg") == 0 ||NStr::StrTailCmp(szCurUrl, ".swf") == 0 ||0){m_UrlMonProtocolSink->ReportResult(S_OK, 0, NULL);m_UrlMonProtocol.Release();return S_OK;}return INET_E_USE_DEFAULT_PROTOCOLHANDLER;}pFiltDat = (PROTOCOLFILTERDATA *)dwReserved;hr = pOIProtSink->QueryInterface(IID_IInternetProtocol, (void**)&m_UrlMonProtocol);ClearBuffer();memset(pzUrl, 0, sizeof(pzUrl));m_sCurMime = szUrl;try{hr = pOIBindInfo->GetBindString(BINDSTRING_URL, pzUrl, OT_MAX, &uFetched);m_sCurUrl = pzUrl[0];FLT_TRACE("IInternetProtocolRoot::Start: %S, %S/n", szUrl, m_sCurUrl.c_str());}catch (CMemoryException* e){}catch (...){}return S_OK;}STDMETHOD(Continue)(PROTOCOLDATA * pProtocolData){if(m_nFilterType & Filter_namespcae)return INET_E_USE_DEFAULT_PROTOCOLHANDLER;HRESULT hr;hr = m_UrlMonProtocol->Continue(pProtocolData);return hr;}STDMETHOD(Abort)(HRESULT hrReason, DWORD dwOptions){if(m_nFilterType & Filter_namespcae)return INET_E_USE_DEFAULT_PROTOCOLHANDLER;HRESULT hr;hr = m_UrlMonProtocol->Abort(hrReason, dwOptions);return hr;}STDMETHOD(Terminate)(DWORD dwOptions){if(m_nFilterType & Filter_namespcae)return S_OK;HRESULT hr;ClearBuffer();hr = m_UrlMonProtocol->Terminate(dwOptions);return hr;}STDMETHOD(Suspend)(){if(m_nFilterType & Filter_namespcae)return INET_E_USE_DEFAULT_PROTOCOLHANDLER;HRESULT hr;hr = m_UrlMonProtocol->Suspend();return hr;}STDMETHOD(Resume)(){if(m_nFilterType & Filter_namespcae)return INET_E_USE_DEFAULT_PROTOCOLHANDLER;HRESULT hr;hr = m_UrlMonProtocol->Resume();return hr;}//IInternetProtocolByteMemm_ReadBuffer;ByteMemm_OneBuffer;BOOLm_bReadFull;BOOLClearBuffer(){m_ReadBuffer.clear();m_OneBuffer.resize(16*1024);m_bReadFull = FALSE;return TRUE;}//<mce:script .... </script></mce:script>";pEnd = StrStrIA(pFind, pTailStr);if(pEnd == NULL)return FALSE;nSize = (int)(pEnd - pFind + strlen(pTailStr));memset(pFind, ' ', nSize);return TRUE;}BOOLProcessBuffer(){WCHAR*pUrl;CHAR*pData;DWORDdwSize;dwSize = (DWORD)m_ReadBuffer.size();m_ReadBuffer.append((BYTE *)"", 1);//添加字符串结束标记pData = (CHAR*)m_ReadBuffer.getptr();pUrl = (WCHAR *)m_sCurUrl.c_str();if(dwSize <= 0)return TRUE;if(wcsicmp(m_sCurMime.c_str(), L"text/html") != 0 &&wcsicmp(m_sCurMime.c_str(), L"application/x-javascript") != 0 &&wcsicmp(m_sCurMime.c_str(), L"text/css") != 0 &&1)return TRUE;if(NStr::StrHeadCmp((WCHAR *)m_sCurUrl.c_str(), L"res://") == 0){NStr::StrReplace(pData, "宋体", "雅黑");return TRUE;}//return TRUE;//自己在这里处理//NStr::LoopFindNoCaseString(LoopFindPro, pData, "<script", pData);//简单去掉脚本元素CHARszOld[64];CHARszNew[64];intnCount;nCount = 0;nCount += NStr::StrReplace(pData, "天涯", "太阳");//普通编码NStr::CodePageConvert(936, CP_UTF8, "天涯", szOld, sizeof(szOld));NStr::CodePageConvert(936, CP_UTF8, "太阳", szNew, sizeof(szNew));nCount += NStr::StrReplace(pData, szOld, szNew);//UTF8编码NStr::String2HtmTranMean("天涯", szOld);NStr::String2HtmTranMean("太阳", szNew);nCount += NStr::StrReplace(pData, szOld, szNew);//Htm转义字符10进制NStr::String2HtmTranMean("天涯", szOld, TRUE);NStr::String2HtmTranMean("太阳", szNew, TRUE);nCount += NStr::StrIReplace(pData, szOld, szNew);//Htm转义字符16进制nCount += NStr::StrReplace(pData, "宋体", "雅黑");//普通编码CHAR *pFind = strstr(pData, "宋体");if(pFind)TRACE("Find: 宋体/n");FLT_TRACE("Replace: %d, %S/n", nCount, m_sCurUrl.c_str());//处理完毕m_ReadBuffer.pop_back();//删除添加的字符串结束标记return TRUE;}BOOLRealFulltoBuffer(){HRESULThr;DWORDdwRead;if(m_bReadFull)return TRUE;for(;;){dwRead = 0;hr = m_UrlMonProtocol->Read(m_OneBuffer.getptr(), (ULONG)m_OneBuffer.size(), &dwRead);if(dwRead != 0)m_ReadBuffer.append(m_OneBuffer.getptr(), dwRead);if(hr == S_OK)continue;else if(hr == S_FALSE)break;else return FALSE;}m_bReadFull = TRUE;ProcessBuffer();return TRUE;}BOOLReadFromBuffer(void *pv, ULONG cb, ULONG *pcbRead){if(m_ReadBuffer.size() <= 0)return FALSE;m_ReadBuffer.pop_head(pv, cb, (int *)pcbRead);return TRUE;}STDMETHOD(Read)(void *pv, ULONG cb, ULONG *pcbRead){if(m_nFilterType & Filter_namespcae)return S_OK;//return m_UrlMonProtocol->Read(pv, cb, pcbRead);BOOLbRetVal;bRetVal = RealFulltoBuffer();if(bRetVal == FALSE){*pcbRead = 0;return E_PENDING;}bRetVal = ReadFromBuffer(pv, cb, pcbRead);if(bRetVal == FALSE)return S_FALSE;return S_OK;}STDMETHOD(Seek)(LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition){if(m_nFilterType & Filter_namespcae)return INET_E_USE_DEFAULT_PROTOCOLHANDLER;HRESULThr;hr = m_UrlMonProtocol->Seek(dlibMove, dwOrigin, plibNewPosition);return hr;}STDMETHOD(UnlockRequest)(){if(m_nFilterType & Filter_namespcae)return INET_E_USE_DEFAULT_PROTOCOLHANDLER;HRESULThr;hr = m_UrlMonProtocol->UnlockRequest();return hr;}STDMETHOD(LockRequest)(DWORD dwOptions){if(m_nFilterType & Filter_namespcae)return INET_E_USE_DEFAULT_PROTOCOLHANDLER;HRESULThr;hr = m_UrlMonProtocol->LockRequest(dwOptions);return hr;}//IInternetProtocolSinkSTDMETHOD (ReportData)( DWORD grfBSCF, ULONG ulProgress, ULONG ulProgressMax){if(m_nFilterType & Filter_namespcae)return INET_E_USE_DEFAULT_PROTOCOLHANDLER;HRESULThr;hr = m_UrlMonProtocolSink->ReportData(grfBSCF, ulProgress, ulProgressMax);return hr;}STDMETHOD (ReportProgress)( ULONG ulStatusCode, LPCWSTR szStatusText){HRESULThr;switch(ulStatusCode){case BINDSTATUS_DECODING:FLT_TRACE("ReportProgress-BINDSTATUS_DECODING: %S/n", szStatusText);break;case BINDSTATUS_MIMETYPEAVAILABLE:FLT_TRACE("ReportProgress-BINDSTATUS_MIMETYPEAVAILABLE: %S/n", szStatusText);break;case BINDSTATUS_CACHEFILENAMEAVAILABLE:FLT_TRACE("ReportProgress-BINDSTATUS_CACHEFILENAMEAVAILABLE: %S/n", szStatusText);m_sCacheFilePath = szStatusText;break;default:FLT_TRACE("ReportProgress-Unknow: %S/n", szStatusText);}hr = m_UrlMonProtocolSink->ReportProgress(ulStatusCode, szStatusText);return hr;}STDMETHOD (ReportResult)( HRESULT hrResult, DWORD dwError, LPCWSTR szResult){HRESULThr;hr = m_UrlMonProtocolSink->ReportResult(hrResult, dwError, szResult);return hr;}STDMETHOD (Switch)( PROTOCOLDATA *pProtocolData){HRESULThr;hr = m_UrlMonProtocolSink->Switch(pProtocolData);return hr;}STDMETHOD (SetPriority)(LONG nPriority){return S_OK;}STDMETHOD (GetPriority)(LONG * pnPriority){return S_OK;}};////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////