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101 lines
2.5 KiB
C++
Executable File
101 lines
2.5 KiB
C++
Executable File
// DLLExports.cpp
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#include "StdAfx.h"
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#include "Common/MyInitGuid.h"
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#include "Common/ComTry.h"
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#include "MyAES.h"
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extern "C"
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BOOL WINAPI DllMain(HINSTANCE /* hInstance */, DWORD /* dwReason */, LPVOID /* lpReserved */)
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{
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return TRUE;
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}
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#define MY_CreateClass(n) \
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if (*clsid == CLSID_CCrypto_ ## n ## _Encoder) { \
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if (!correctInterface) return E_NOINTERFACE; \
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filter = (ICompressFilter *)new C ## n ## _Encoder(); \
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} else if (*clsid == CLSID_CCrypto_ ## n ## _Decoder){ \
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if (!correctInterface) return E_NOINTERFACE; \
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filter = (ICompressFilter *)new C ## n ## _Decoder(); \
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}
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STDAPI CreateObject(
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const GUID *clsid,
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const GUID *interfaceID,
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void **outObject)
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{
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COM_TRY_BEGIN
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*outObject = 0;
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int correctInterface = (*interfaceID == IID_ICompressFilter);
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CMyComPtr<ICompressFilter> filter;
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MY_CreateClass(AES_CBC)
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else
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MY_CreateClass(AES_ECB)
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else
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return CLASS_E_CLASSNOTAVAILABLE;
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*outObject = filter.Detach();
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return S_OK;
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COM_TRY_END
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}
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struct CAESMethodItem
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{
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char ID[3];
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const wchar_t *UserName;
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const GUID *Decoder;
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const GUID *Encoder;
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};
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#define METHOD_ITEM(Name, id, UserName) \
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{ { 0x06, 0x01, id }, UserName, \
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&CLSID_CCrypto_ ## Name ## _Decoder, \
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&CLSID_CCrypto_ ## Name ## _Encoder }
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static CAESMethodItem g_Methods[] =
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{
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METHOD_ITEM(AES_ECB, (char)(unsigned char)0xC0, L"AES-ECB"),
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METHOD_ITEM(AES_CBC, (char)(unsigned char)0xC1, L"AES")
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};
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STDAPI GetNumberOfMethods(UINT32 *numMethods)
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{
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*numMethods = sizeof(g_Methods) / sizeof(g_Methods[1]);
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return S_OK;
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}
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STDAPI GetMethodProperty(UINT32 index, PROPID propID, PROPVARIANT *value)
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{
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if (index > sizeof(g_Methods) / sizeof(g_Methods[1]))
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return E_INVALIDARG;
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VariantClear((tagVARIANT *)value);
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const CAESMethodItem &method = g_Methods[index];
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switch(propID)
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{
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case NMethodPropID::kID:
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if ((value->bstrVal = ::SysAllocStringByteLen(method.ID,
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sizeof(method.ID))) != 0)
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value->vt = VT_BSTR;
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return S_OK;
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case NMethodPropID::kName:
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if ((value->bstrVal = ::SysAllocString(method.UserName)) != 0)
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value->vt = VT_BSTR;
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return S_OK;
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case NMethodPropID::kDecoder:
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if ((value->bstrVal = ::SysAllocStringByteLen(
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(const char *)method.Decoder, sizeof(GUID))) != 0)
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value->vt = VT_BSTR;
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return S_OK;
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case NMethodPropID::kEncoder:
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if ((value->bstrVal = ::SysAllocStringByteLen(
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(const char *)method.Encoder, sizeof(GUID))) != 0)
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value->vt = VT_BSTR;
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return S_OK;
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}
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return S_OK;
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}
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