DWORD load_assembly(BYTE* assemblyData, DWORD assemblySize)
{
dprintf("[PSH] loading assembly of size %u", assemblySize);
HRESULT hr = S_OK;
SAFEARRAY* clrByteArray = NULL;
SAFEARRAYBOUND bounds[1];
_AssemblyPtr* loadedAssembly = new _AssemblyPtr();
bounds[0].cElements = assemblySize;
bounds[0].lLbound = 0;
if (gClrAppDomainInterface == NULL)
{
dprintf("[PSH] Extension wasn't initialised");
return ERROR_INVALID_HANDLE;
}
do
{
clrByteArray = SafeArrayCreate(VT_UI1, 1, bounds);
if (clrByteArray == NULL)
{
dprintf("[PSH] Failed to create a usable safe array");
hr = (HRESULT)ERROR_OUTOFMEMORY;
break;
}
dprintf("[PSH] Safe array created");
if (FAILED(hr = SafeArrayLock(clrByteArray)))
{
dprintf("[PSH] Safe array lock failed 0x%x", hr);
break;
}
dprintf("[PSH] Copying binary data to target");
memcpy(clrByteArray->pvData, assemblyData, assemblySize);
SafeArrayUnlock(clrByteArray);
if (FAILED(hr = gClrAppDomainInterface->Load_3(clrByteArray, (_Assembly**)loadedAssembly)))
{
dprintf("[PSH] Failed to load the assembly 0x%x", hr);
break;
}
dprintf("[PSH] Assembly appears to have been loaded successfully");
list_add(gLoadedAssemblies, loadedAssembly);
} while (0);
if (SUCCEEDED(hr))
{
return ERROR_SUCCESS;
}
else
{
delete loadedAssembly;
}
return (DWORD)hr;
}
HRESULT LoadLoaderIntoAppDomain(_AppDomainPtr& pAppDomain, _AssemblyPtr& pLoaderAssembly, bool forceFromBytes)
{
HRESULT hr;
if (!forceFromBytes)
{
// Try regular load first
hr = pAppDomain->Load_2(_bstr_t(L"ExcelDna.Loader"), &pLoaderAssembly);
}
if (forceFromBytes || FAILED(hr) || pLoaderAssembly == NULL)
{
// Now try from resource bytes
HRSRC hResInfoLoader = FindResource(hModuleCurrent, L"EXCELDNA.LOADER", L"ASSEMBLY");
if (hResInfoLoader == NULL)
{
ShowMessage(IDS_MSG_HEADER_APPDOMAIN,
IDS_MSG_BODY_MISSINGEXCELDNALOADER,
IDS_MSG_FOOTER_UNEXPECTED,
hr);
return E_FAIL;
}
HGLOBAL hLoader = LoadResource(hModuleCurrent, hResInfoLoader);
void* pLoader = LockResource(hLoader);
ULONG sizeLoader = (ULONG)SizeofResource(hModuleCurrent, hResInfoLoader);
SafeByteArray loaderBytes(pLoader, sizeLoader);
hr = pAppDomain->Load_3(loaderBytes, &pLoaderAssembly);
if (FAILED(hr))
{
ShowMessage(IDS_MSG_HEADER_APPDOMAIN,
IDS_MSG_BODY_EXCELDNALOADER,
IDS_MSG_FOOTER_UNEXPECTED,
hr);
return E_FAIL;
}
if (FAILED(hr))
{
ShowMessage(IDS_MSG_HEADER_APPDOMAIN,
IDS_MSG_BODY_EXCELDNALOADERNAME,
IDS_MSG_FOOTER_UNEXPECTED,
hr);
return E_FAIL;
}
}
return S_OK;
}