Leaked source code of windows server 2003
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/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Microsoft Windows, Copyright (C) Microsoft Corporation, 2000
File: HashedData.h
Content: Declaration of CHashedData.
History: 11-12-2001 dsie created
------------------------------------------------------------------------------*/
#ifndef __HASHEDDATA_H_
#define __HASHEDDATA_H_
#include "Resource.h"
#include "Error.h"
#include "Lock.h"
#include "Debug.h"
typedef enum
{
CAPICOM_HASH_INIT_STATE = 0,
CAPICOM_HASH_DATA_STATE = 1,
} CAPICOM_HASH_STATE;
////////////////////////////////////////////////////////////////////////////////
//
// CHashedData
//
class ATL_NO_VTABLE CHashedData :
public CComObjectRootEx<CComMultiThreadModel>,
public CComCoClass<CHashedData, &CLSID_HashedData>,
public ICAPICOMError<CHashedData, &IID_IHashedData>,
public IDispatchImpl<IHashedData, &IID_IHashedData, &LIBID_CAPICOM,
CAPICOM_MAJOR_VERSION, CAPICOM_MINOR_VERSION>,
public IObjectSafetyImpl<CHashedData, INTERFACESAFE_FOR_UNTRUSTED_CALLER |
INTERFACESAFE_FOR_UNTRUSTED_DATA>
{
public:
CHashedData()
{
}
DECLARE_REGISTRY_RESOURCEID(IDR_HASHEDDATA)
DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_COM_MAP(CHashedData)
COM_INTERFACE_ENTRY(IHashedData)
COM_INTERFACE_ENTRY(IDispatch)
COM_INTERFACE_ENTRY(IObjectSafety)
COM_INTERFACE_ENTRY(ISupportErrorInfo)
END_COM_MAP()
BEGIN_CATEGORY_MAP(CHashedData)
IMPLEMENTED_CATEGORY(CATID_SafeForScripting)
IMPLEMENTED_CATEGORY(CATID_SafeForInitializing)
END_CATEGORY_MAP()
HRESULT FinalConstruct()
{
HRESULT hr;
if (FAILED(hr = m_Lock.Initialized()))
{
DebugTrace("Error [%#x]: Critical section could not be created for Certificate object.\n", hr);
return hr;
}
m_hCryptProv = NULL;
m_hCryptHash = NULL;
m_Algorithm = CAPICOM_HASH_ALGORITHM_SHA1;
m_HashState = CAPICOM_HASH_INIT_STATE;
return S_OK;
}
void FinalRelease()
{
if (m_hCryptHash)
{
::CryptDestroyHash(m_hCryptHash);
}
if (m_hCryptProv)
{
::CryptReleaseContext(m_hCryptProv, 0);
}
}
//
// IHashedData
//
public:
STDMETHOD(get_Value)
(/*[out, retval]*/ BSTR * pVal);
STDMETHOD(get_Algorithm)
(/*[out, retval]*/ CAPICOM_HASH_ALGORITHM * pVal);
STDMETHOD(put_Algorithm)
(/*[in]*/ CAPICOM_HASH_ALGORITHM newVal);
STDMETHOD(Hash)
(/*[in]*/ BSTR newVal);
private:
CLock m_Lock;
HCRYPTPROV m_hCryptProv;
HCRYPTHASH m_hCryptHash;
CAPICOM_HASH_ALGORITHM m_Algorithm;
CAPICOM_HASH_STATE m_HashState;
};
#endif //__HASHEDDATA_H_