Source code of Windows XP (NT5)
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#include <fusenetincludes.h>
#include <msxml2.h>
#include <sxsid.h>
#include <assemblyidentity.h>
#include <shlwapi.h>
// ---------------------------------------------------------------------------
// CreateAssemblyIdentity
// ---------------------------------------------------------------------------
STDAPI
CreateAssemblyIdentity(
LPASSEMBLY_IDENTITY *ppAssemblyId,
DWORD dwFlags)
{
HRESULT hr = S_OK;
CAssemblyIdentity *pAssemblyId = NULL;
pAssemblyId = new(CAssemblyIdentity);
if (!pAssemblyId)
{
hr = E_OUTOFMEMORY;
goto exit;
}
hr = pAssemblyId->Init();
if (FAILED(hr))
{
SAFERELEASE(pAssemblyId);
goto exit;
}
exit:
*ppAssemblyId = pAssemblyId;
return hr;
}
STDAPI
CreateAssemblyIdentityEx(
LPASSEMBLY_IDENTITY *ppAssemblyId,
DWORD dwFlags,
LPWSTR wzDisplayName)
{
HRESULT hr = S_OK;
CAssemblyIdentity *pAssemblyId = NULL;
pAssemblyId = new(CAssemblyIdentity);
if (!pAssemblyId)
{
hr = E_OUTOFMEMORY;
goto exit;
}
hr = pAssemblyId->Init();
if (FAILED(hr))
{
SAFERELEASE(pAssemblyId);
goto exit;
}
if (wzDisplayName)
{
LPWSTR pwzStart, pwzEnd;
CString Temp[4];
CString sDirName;
int i=0;
sDirName.Assign(wzDisplayName);
pwzStart = sDirName._pwz;
pwzEnd = sDirName._pwz;
while (pwzEnd = StrChr(pwzEnd, L'_'))
{
*pwzEnd = L'\0';
Temp[i++].Assign(pwzStart);
pwzStart = ++pwzEnd;
}
pAssemblyId->SetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_LANGUAGE,
(LPCOLESTR)pwzStart, lstrlen(pwzStart) + 1);
pAssemblyId->SetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_VERSION,
(LPCOLESTR)Temp[3]._pwz, lstrlen(Temp[3]._pwz) + 1);
pAssemblyId->SetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_PUBLIC_KEY_TOKEN,
(LPCOLESTR)Temp[2]._pwz, lstrlen(Temp[2]._pwz) + 1);
pAssemblyId->SetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_NAME,
(LPCOLESTR)Temp[1]._pwz, lstrlen(Temp[1]._pwz) + 1);
pAssemblyId->SetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_PROCESSOR_ARCHITECTURE,
(LPCOLESTR)Temp[0]._pwz, lstrlen(Temp[0]._pwz) + 1);
}
exit:
*ppAssemblyId = pAssemblyId;
return hr;
}
// ---------------------------------------------------------------------------
// CloneAssemblyIdentity
// ---------------------------------------------------------------------------
STDAPI
CloneAssemblyIdentity(
LPASSEMBLY_IDENTITY pSrcAssemblyId,
LPASSEMBLY_IDENTITY *ppDestAssemblyId)
{
HRESULT hr = S_OK;
CAssemblyIdentity *pAssemblyId = NULL;
if (pSrcAssemblyId == NULL || ppDestAssemblyId == NULL)
{
hr = E_INVALIDARG;
goto exit;
}
*ppDestAssemblyId = NULL;
if (FAILED(hr = CreateAssemblyIdentity((LPASSEMBLY_IDENTITY*) &pAssemblyId, 0)))
goto exit;
if (!SxsDuplicateAssemblyIdentity(0, (static_cast<CAssemblyIdentity*> (pSrcAssemblyId))->_pId,
&(pAssemblyId->_pId)))
{
DWORD dw = ::GetLastError();
hr = HRESULT_FROM_WIN32(dw);
goto exit;
}
*ppDestAssemblyId = pAssemblyId;
exit:
return hr;
}
// ---------------------------------------------------------------------------
// ctor
// ---------------------------------------------------------------------------
CAssemblyIdentity::CAssemblyIdentity()
: _dwSig('TNDI'), _cRef(1), _hr(S_OK), _pId(NULL)
{
}
// ---------------------------------------------------------------------------
// dtor
// ---------------------------------------------------------------------------
CAssemblyIdentity::~CAssemblyIdentity()
{
SxsDestroyAssemblyIdentity(_pId);
}
// ---------------------------------------------------------------------------
// Init
// ---------------------------------------------------------------------------
HRESULT CAssemblyIdentity::Init()
{
if (!SxsCreateAssemblyIdentity(0, ASSEMBLY_IDENTITY_TYPE_DEFINITION, &_pId, 0, NULL))
{
DWORD dw = ::GetLastError();
_hr = HRESULT_FROM_WIN32(dw);
}
else
_hr = S_OK;
return _hr;
}
// ---------------------------------------------------------------------------
// SetAttribute
// ---------------------------------------------------------------------------
HRESULT CAssemblyIdentity::SetAttribute(LPCOLESTR pwzName,
LPCOLESTR pwzValue, DWORD ccValue)
{
DWORD ccName = lstrlen(pwzName);
SXS_ASSEMBLY_IDENTITY_ATTRIBUTE_REFERENCE AttrRef;
AttrRef.Namespace = SXS_ASSEMBLY_MANIFEST_STD_NAMESPACE;
AttrRef.NamespaceCch = SXS_ASSEMBLY_MANIFEST_STD_NAMESPACE_CCH;
AttrRef.Name = pwzName;
AttrRef.NameCch = ccName;
// BUGBUG: should allow overwrite or not?
if (!SxspSetAssemblyIdentityAttributeValue(
SXSP_SET_ASSEMBLY_IDENTITY_ATTRIBUTE_VALUE_FLAG_OVERWRITE_EXISTING,
_pId, &AttrRef, pwzValue, ccValue))
{
DWORD dw = ::GetLastError();
_hr = HRESULT_FROM_WIN32(dw);
}
else
_hr = S_OK;
return _hr;
}
// ---------------------------------------------------------------------------
// GetAttribute
// ---------------------------------------------------------------------------
HRESULT CAssemblyIdentity::GetAttribute(LPCOLESTR pwzName,
LPOLESTR *ppwzValue, LPDWORD pccValue)
{
LPWSTR pwzValue = NULL;
PCWSTR pwzStringOut = NULL;
DWORD ccStringOut = 0;
DWORD ccName = lstrlen(pwzName);
SXS_ASSEMBLY_IDENTITY_ATTRIBUTE_REFERENCE AttrRef;
AttrRef.Namespace = SXS_ASSEMBLY_MANIFEST_STD_NAMESPACE;
AttrRef.NamespaceCch = SXS_ASSEMBLY_MANIFEST_STD_NAMESPACE_CCH;
AttrRef.Name = pwzName;
AttrRef.NameCch = ccName;
if (!SxspGetAssemblyIdentityAttributeValue(0, _pId, &AttrRef, &pwzStringOut, &ccStringOut))
{
DWORD dw = ::GetLastError();
_hr = HRESULT_FROM_WIN32(dw);
goto exit;
}
pwzValue = WSTRDupDynamic(pwzStringOut);
if (!pwzValue)
{
_hr = E_OUTOFMEMORY;
goto exit;
}
_hr = S_OK;
*ppwzValue = pwzValue;
*pccValue = ccStringOut;
exit:
return _hr;
}
// ---------------------------------------------------------------------------
// IsEqual
// ---------------------------------------------------------------------------
HRESULT CAssemblyIdentity::IsEqual (IAssemblyIdentity *pAssemblyId)
{
LPWSTR pwzBuf;
DWORD ccBuf;
CString sLang1, sVersion1, sToken1, sName1, sArch1;
CString sLang2, sVersion2, sToken2, sName2, sArch2;
// Compare architectures
if (FAILED(_hr = (pAssemblyId->GetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_PROCESSOR_ARCHITECTURE, &pwzBuf, &ccBuf))))
goto exit;
sArch1.TakeOwnership(pwzBuf, ccBuf);
if (FAILED(_hr = (GetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_PROCESSOR_ARCHITECTURE, &pwzBuf, &ccBuf))))
goto exit;
sArch2.TakeOwnership(pwzBuf, ccBuf);
if (StrCmp (sArch1._pwz, sArch2._pwz))
{
_hr = S_FALSE;
goto exit;
}
// Compare names
if (FAILED(_hr = (pAssemblyId->GetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_NAME, &pwzBuf, &ccBuf))))
goto exit;
sName1.TakeOwnership(pwzBuf, ccBuf);
if (FAILED(_hr = (GetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_NAME, &pwzBuf, &ccBuf))))
goto exit;
sName2.TakeOwnership(pwzBuf, ccBuf);
if (StrCmp (sName1._pwz, sName2._pwz))
{
_hr = S_FALSE;
goto exit;
}
// Compare Public Key Tokens
if (FAILED(_hr = (pAssemblyId->GetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_PUBLIC_KEY_TOKEN, &pwzBuf, &ccBuf))))
goto exit;
sToken1.TakeOwnership(pwzBuf, ccBuf);
if (FAILED(_hr = (GetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_PUBLIC_KEY_TOKEN, &pwzBuf, &ccBuf))))
goto exit;
sToken2.TakeOwnership(pwzBuf, ccBuf);
if (StrCmp (sToken1._pwz, sToken2._pwz))
{
_hr = S_FALSE;
goto exit;
}
// Compare Versions
if (FAILED(_hr = (pAssemblyId->GetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_VERSION, &pwzBuf, &ccBuf))))
goto exit;
sVersion1.TakeOwnership(pwzBuf, ccBuf);
if (FAILED(_hr = (GetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_VERSION, &pwzBuf, &ccBuf))))
goto exit;
sVersion2.TakeOwnership(pwzBuf, ccBuf);
if (StrCmp (sVersion1._pwz, sVersion2._pwz))
{
_hr = S_FALSE;
goto exit;
}
// Compare Languages
if (FAILED(_hr = (pAssemblyId->GetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_LANGUAGE, &pwzBuf, &ccBuf))))
goto exit;
sLang1.TakeOwnership(pwzBuf, ccBuf);
if (FAILED(_hr = (GetAttribute(SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_LANGUAGE, &pwzBuf, &ccBuf))))
goto exit;
sLang2.TakeOwnership(pwzBuf, ccBuf);
if (StrCmp (sLang1._pwz, sLang2._pwz))
{
_hr = S_FALSE;
goto exit;
}
_hr = S_OK;
exit:
return _hr;
}
#define WZ_WILDCARDSTRING L"*"
// ---------------------------------------------------------------------------
// GetDisplayName
// ---------------------------------------------------------------------------
HRESULT CAssemblyIdentity::GetDisplayName(DWORD dwFlags, LPOLESTR *ppwzDisplayName, LPDWORD pccDisplayName)
{
LPWSTR rpwzAttrNames[5] =
{
SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_PROCESSOR_ARCHITECTURE,
SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_NAME,
SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_PUBLIC_KEY_TOKEN,
SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_VERSION,
SXS_ASSEMBLY_IDENTITY_STD_ATTRIBUTE_NAME_LANGUAGE,
};
LPWSTR pwzBuf = NULL;
DWORD ccBuf = 0;
CString sDisplayName;
for (int i = 0; i < 5; i++)
{
CString sBuffer;
if (FAILED(_hr = GetAttribute(rpwzAttrNames[i], &pwzBuf, &ccBuf))
&& _hr != HRESULT_FROM_WIN32(ERROR_NOT_FOUND))
goto exit;
// append anyway to keep the number of underscore constant
if (i)
sDisplayName.Append(L"_");
if (dwFlags == ASMID_DISPLAYNAME_WILDCARDED
&& _hr == HRESULT_FROM_WIN32(ERROR_NOT_FOUND))
{
sDisplayName.Append(WZ_WILDCARDSTRING);
_hr = S_OK;
}
else if (_hr == S_OK)
{
sBuffer.TakeOwnership(pwzBuf, ccBuf);
sDisplayName.Append(sBuffer);
}
}
*ppwzDisplayName = sDisplayName._pwz;
*pccDisplayName = sDisplayName._cc;
sDisplayName.ReleaseOwnership();
exit:
return _hr;
}
// IUnknown Boilerplate
// ---------------------------------------------------------------------------
// CAssemblyIdentity::QI
// ---------------------------------------------------------------------------
STDMETHODIMP
CAssemblyIdentity::QueryInterface(REFIID riid, void** ppvObj)
{
if ( IsEqualIID(riid, IID_IUnknown)
|| IsEqualIID(riid, IID_IAssemblyIdentity)
)
{
*ppvObj = static_cast<IAssemblyIdentity*> (this);
AddRef();
return S_OK;
}
else
{
*ppvObj = NULL;
return E_NOINTERFACE;
}
}
// ---------------------------------------------------------------------------
// CAssemblyIdentity::AddRef
// ---------------------------------------------------------------------------
STDMETHODIMP_(ULONG)
CAssemblyIdentity::AddRef()
{
return InterlockedIncrement ((LONG*) &_cRef);
}
// ---------------------------------------------------------------------------
// CAssemblyIdentity::Release
// ---------------------------------------------------------------------------
STDMETHODIMP_(ULONG)
CAssemblyIdentity::Release()
{
ULONG lRet = InterlockedDecrement ((LONG*) &_cRef);
if (!lRet)
delete this;
return lRet;
}