187 lines
5.1 KiB
C++
187 lines
5.1 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1997.
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//
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// File: session.hxx
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//
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// Contents: TSession interfaces.
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//
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// History: 3-30-97 MohamedN Created
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include "datasrc.hxx"
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#include <impiunk.hxx>
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#include <mparser.h>
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//+---------------------------------------------------------------------------
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//
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// Class: CDBSession
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//
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// Purpose: exposes ole-db session interfaces.
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//
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// History: 3-30-97 MohamedN Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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class CDBSession : public IOpenRowset,
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public IGetDataSource,
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public ISessionProperties,
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public IDBCreateCommand
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{
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public:
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CDBSession( CDataSrc & dataSrc,
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IUnknown * pUnkOuter,
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IUnknown ** ppUnkInner,
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IParserSession* pIPSession,
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HANDLE hToken );
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~CDBSession(void);
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//
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// IUnknown methods
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//
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STDMETHOD(QueryInterface) ( THIS_ REFIID riid, LPVOID *ppiuk )
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{
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// Delegate to outer unknown if aggregated
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return _pUnkOuter->QueryInterface( riid, ppiuk );
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}
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STDMETHOD(RealQueryInterface) (THIS_ REFIID riid, LPVOID *ppiuk );
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STDMETHOD_(ULONG, AddRef) (THIS) { return _pUnkOuter->AddRef(); }
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STDMETHOD_(ULONG, Release) (THIS) { return _pUnkOuter->Release(); }
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//
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// IGetDataSource methods
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//
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STDMETHOD (GetDataSource) (THIS_ REFIID riid, IUnknown **ppDataSource );
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//
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// ISessionProperties methods
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//
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STDMETHOD (GetProperties) (THIS_
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ULONG cPropertySets,
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const DBPROPIDSET rgPropertySets[],
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ULONG* pcProperties,
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DBPROPSET** prgProperties);
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STDMETHOD (SetProperties) (THIS_
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ULONG cProperties,
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DBPROPSET rgProperties[]);
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//
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// ICreateCommand methods
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//
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STDMETHOD (CreateCommand) (THIS_ IUnknown*, REFIID, IUnknown **);
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//
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// IOpenRowset methods
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//
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STDMETHODIMP OpenRowset (IUnknown * pUnkOuter,
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DBID * pTableID,
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DBID * pIndexID,
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REFIID riid,
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ULONG cPropertySets,
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DBPROPSET rgPropertySets[],
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IUnknown ** ppRowset);
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//
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// Access Functions
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//
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IParserSession * GetParserSession() { return _xIPSession.GetPointer(); }
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CDataSrc * GetDataSrcPtr() { return &_dataSrc; }
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IUnknown * GetOuterUnk() { return _pUnkOuter; }
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HANDLE GetLogonToken() { return _xSessionToken.Get(); }
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private:
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LPUNKNOWN _pUnkOuter;
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CImpIUnknown<CDBSession> _impIUnknown;
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CDataSrc & _dataSrc;
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CMutexSem _mtxSess;
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CMSessProps _UtlProps;
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//
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// SQL Text Parser support
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//
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XInterface<IParserSession> _xIPSession;
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//
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// IOpenRowset helper
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//
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static SCODE SetOpenRowsetProperties(
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ICommandText* pICmdText,
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ULONG cPropertySets,
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DBPROPSET rgPropertySets[]);
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static SCODE MarkOpenRowsetProperties(
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ICommandText* pICmdText,
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ULONG cPropertySets,
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DBPROPSET rgPropertySets[]
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);
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static void MarkPropInError(
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ULONG cPropertySets,
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DBPROPSET * rgPropertySets,
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GUID * pguidPropSet,
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DBPROP * pProp );
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//
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// ISupportErrorInfo
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//
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CCIOleDBError _ErrorInfo;
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SHandle _xSessionToken;
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CImpersonateSessionUser
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//
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// Purpose:
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//
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// History: 01-24-99 danleg Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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class CImpersonateSessionUser
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{
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public:
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CImpersonateSessionUser( HANDLE hToken = INVALID_HANDLE_VALUE );
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~CImpersonateSessionUser();
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void Revert();
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private:
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void CachePrevToken();
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void Impersonate();
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HANDLE DupToken( HANDLE hToken );
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BOOL _fImpersonated;
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SHandle _xPrevToken;
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SHandle _xSessionToken;
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};
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