HRESULT
GetElementStringProperty(
IN IAppHostElement * pElement,
IN CONST WCHAR * szPropName,
OUT STRU * pstrPropValue
)
{
HRESULT hr = S_OK;
BSTR bstrPropName = SysAllocString( szPropName );
IAppHostProperty* pProperty = NULL;
BSTR bstrPropValue = NULL;
if (!bstrPropName)
{
hr = E_OUTOFMEMORY;
DBGERROR_HR( hr );
goto exit;
}
hr = pElement->GetPropertyByName( bstrPropName, &pProperty );
if (FAILED(hr))
{
DBGERROR_HR( hr );
goto exit;
}
hr = pProperty->get_StringValue( &bstrPropValue );
if (FAILED(hr))
{
DBGERROR_HR( hr );
goto exit;
}
hr = pstrPropValue->Copy(bstrPropValue);
if (FAILED(hr))
{
DBGERROR_HR( hr );
goto exit;
}
exit:
if (pProperty)
{
pProperty->Release();
}
if (bstrPropValue)
{
SysFreeString( bstrPropValue );
}
if (bstrPropName)
{
SysFreeString( bstrPropName );
}
return hr;
}
HRESULT CModuleConfiguration::GetString(IAppHostElement* section, LPCWSTR propertyName, LPWSTR* value)
{
HRESULT hr = S_OK;
BSTR sysPropertyName = NULL;
BSTR sysPropertyValue = NULL;
IAppHostProperty* prop = NULL;
CheckNull(value);
*value = NULL;
ErrorIf(NULL == (sysPropertyName = SysAllocString(propertyName)), ERROR_NOT_ENOUGH_MEMORY);
CheckError(section->GetPropertyByName(sysPropertyName, &prop));
CheckError(prop->get_StringValue(&sysPropertyValue));
ErrorIf(NULL == (*value = new WCHAR[wcslen(sysPropertyValue) + 1]), ERROR_NOT_ENOUGH_MEMORY);
wcscpy(*value, sysPropertyValue);
Error:
if ( sysPropertyName )
{
SysFreeString(sysPropertyName);
sysPropertyName = NULL;
}
if ( sysPropertyValue )
{
SysFreeString(sysPropertyValue);
sysPropertyValue = NULL;
}
if (prop)
{
prop->Release();
prop = NULL;
}
return hr;
}
HRESULT CModuleConfiguration::CreateNodeEnvironment(IHttpContext* ctx, DWORD debugPort, PCH namedPipe, PCH* env)
{
HRESULT hr;
LPCH currentEnvironment = NULL;
LPCH tmpStart, tmpIndex = NULL;
DWORD tmpSize;
DWORD environmentSize;
IAppHostElement* section = NULL;
IAppHostElementCollection* appSettings = NULL;
IAppHostElement* entry = NULL;
IAppHostPropertyCollection* properties = NULL;
IAppHostProperty* prop = NULL;
BSTR keyPropertyName = NULL;
BSTR valuePropertyName = NULL;
VARIANT vKeyPropertyName;
VARIANT vValuePropertyName;
DWORD count;
BSTR propertyValue;
int propertySize;
CheckNull(env);
*env = NULL;
// this is a zero terminated list of zero terminated strings of the form <var>=<value>
// calculate size of current environment
ErrorIf(NULL == (currentEnvironment = GetEnvironmentStrings()), GetLastError());
environmentSize = 0;
do {
while (*(currentEnvironment + environmentSize++) != 0);
} while (*(currentEnvironment + environmentSize++) != 0);
// allocate memory for new environment variables
tmpSize = 32767 - environmentSize;
ErrorIf(NULL == (tmpIndex = tmpStart = new char[tmpSize]), ERROR_NOT_ENOUGH_MEMORY);
RtlZeroMemory(tmpIndex, tmpSize);
// set PORT and IISNODE_VERSION variables
ErrorIf(tmpSize < (strlen(namedPipe) + strlen(IISNODE_VERSION) + 6 + 17), ERROR_NOT_ENOUGH_MEMORY);
sprintf(tmpIndex, "PORT=%s", namedPipe);
tmpIndex += strlen(namedPipe) + 6;
sprintf(tmpIndex, "IISNODE_VERSION=%s", IISNODE_VERSION);
tmpIndex += strlen(IISNODE_VERSION) + 17;
// set DEBUGPORT environment variable if requested (used by node-inspector)
if (debugPort > 0)
{
char debugPortS[64];
sprintf(debugPortS, "%d", debugPort);
ErrorIf((tmpSize - (tmpIndex - tmpStart)) < (strlen(debugPortS) + 11), ERROR_NOT_ENOUGH_MEMORY);
sprintf(tmpIndex, "DEBUGPORT=%s", debugPortS);
tmpIndex += strlen(debugPortS) + 11;
}
// add environment variables from the appSettings section of config
ErrorIf(NULL == (keyPropertyName = SysAllocString(L"key")), ERROR_NOT_ENOUGH_MEMORY);
vKeyPropertyName.vt = VT_BSTR;
vKeyPropertyName.bstrVal = keyPropertyName;
ErrorIf(NULL == (valuePropertyName = SysAllocString(L"value")), ERROR_NOT_ENOUGH_MEMORY);
vValuePropertyName.vt = VT_BSTR;
vValuePropertyName.bstrVal = valuePropertyName;
CheckError(GetConfigSection(ctx, §ion, L"appSettings"));
CheckError(section->get_Collection(&appSettings));
CheckError(appSettings->get_Count(&count));
for (USHORT i = 0; i < count; i++)
{
VARIANT index;
index.vt = VT_I2;
index.iVal = i;
CheckError(appSettings->get_Item(index, &entry));
CheckError(entry->get_Properties(&properties));
CheckError(properties->get_Item(vKeyPropertyName, &prop));
CheckError(prop->get_StringValue(&propertyValue));
ErrorIf(0 == (propertySize = WideCharToMultiByte(CP_ACP, 0, propertyValue, wcslen(propertyValue), NULL, 0, NULL, NULL)), E_FAIL);
ErrorIf((propertySize + 2) > (tmpSize - (tmpStart - tmpIndex)), ERROR_NOT_ENOUGH_MEMORY);
ErrorIf(propertySize != WideCharToMultiByte(CP_ACP, 0, propertyValue, wcslen(propertyValue), tmpIndex, propertySize, NULL, NULL), E_FAIL);
tmpIndex[propertySize] = '=';
tmpIndex += propertySize + 1;
SysFreeString(propertyValue);
propertyValue = NULL;
prop->Release();
prop = NULL;
CheckError(properties->get_Item(vValuePropertyName, &prop));
CheckError(prop->get_StringValue(&propertyValue));
ErrorIf(0 == (propertySize = WideCharToMultiByte(CP_ACP, 0, propertyValue, wcslen(propertyValue), NULL, 0, NULL, NULL)), E_FAIL);
ErrorIf((propertySize + 1) > (tmpSize - (tmpStart - tmpIndex)), ERROR_NOT_ENOUGH_MEMORY);
ErrorIf(propertySize != WideCharToMultiByte(CP_ACP, 0, propertyValue, wcslen(propertyValue), tmpIndex, propertySize, NULL, NULL), E_FAIL);
tmpIndex += propertySize + 1;
SysFreeString(propertyValue);
propertyValue = NULL;
prop->Release();
prop = NULL;
properties->Release();
properties = NULL;
entry->Release();
entry = NULL;
}
// concatenate new environment variables with the current environment block
ErrorIf(NULL == (*env = (LPCH)new char[environmentSize + (tmpIndex - tmpStart)]), ERROR_NOT_ENOUGH_MEMORY);
memcpy(*env, tmpStart, (tmpIndex - tmpStart));
memcpy(*env + (tmpIndex - tmpStart), currentEnvironment, environmentSize);
// cleanup
FreeEnvironmentStrings(currentEnvironment);
section->Release();
appSettings->Release();
SysFreeString(keyPropertyName);
SysFreeString(valuePropertyName);
delete [] tmpStart;
return S_OK;
Error:
if (currentEnvironment)
{
FreeEnvironmentStrings(currentEnvironment);
currentEnvironment = NULL;
}
if (section)
{
section->Release();
section = NULL;
}
if (appSettings)
{
appSettings->Release();
appSettings = NULL;
}
if (keyPropertyName)
{
SysFreeString(keyPropertyName);
keyPropertyName = NULL;
}
if (valuePropertyName)
{
SysFreeString(valuePropertyName);
valuePropertyName = NULL;
}
if (entry)
{
entry->Release();
entry = NULL;
}
if (properties)
{
properties->Release();
properties = NULL;
}
if (prop)
{
prop->Release();
prop = NULL;
}
if (propertyValue)
{
SysFreeString(propertyValue);
propertyValue = NULL;
}
if (tmpStart)
{
delete [] tmpStart;
tmpStart = NULL;
}
return hr;
}
