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/*
* SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2014 ownCloud GmbH
* SPDX-FileCopyrightText: 2000-2013 Liferay, Inc. All rights reserved
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "NCOverlayRegistrationHandler.h"
#include "NCOverlayFactory.h"
#include "WinShellExtConstants.h"
HINSTANCE instanceHandle = nullptr;
long dllReferenceCount = 0;
BOOL APIENTRY DllMain(HMODULE hModule, DWORD dwReason, LPVOID lpReserved)
{
switch (dwReason)
{
case DLL_PROCESS_ATTACH:
instanceHandle = hModule;
DisableThreadLibraryCalls(hModule);
break;
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}
HRESULT CreateFactory(REFIID riid, void **ppv, int state)
{
HRESULT hResult = E_OUTOFMEMORY;
auto ncOverlayFactory = new NCOverlayFactory(state);
if (ncOverlayFactory) {
hResult = ncOverlayFactory->QueryInterface(riid, ppv);
ncOverlayFactory->Release();
}
return hResult;
}
STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void **ppv)
{
HRESULT hResult = CLASS_E_CLASSNOTAVAILABLE;
GUID guid;
hResult = CLSIDFromString(OVERLAY_GUID_ERROR, (LPCLSID)&guid);
if (!SUCCEEDED(hResult)) { return hResult; }
if (IsEqualCLSID(guid, rclsid)) { return CreateFactory(riid, ppv, State_Error); }
hResult = CLSIDFromString(OVERLAY_GUID_OK, (LPCLSID)&guid);
if (!SUCCEEDED(hResult)) { return hResult; }
if (IsEqualCLSID(guid, rclsid)) { return CreateFactory(riid, ppv, State_OK); }
hResult = CLSIDFromString(OVERLAY_GUID_OK_SHARED, (LPCLSID)&guid);
if (!SUCCEEDED(hResult)) { return hResult; }
if (IsEqualCLSID(guid, rclsid)) { return CreateFactory(riid, ppv, State_OKShared); }
hResult = CLSIDFromString(OVERLAY_GUID_SYNC, (LPCLSID)&guid);
if (!SUCCEEDED(hResult)) { return hResult; }
if (IsEqualCLSID(guid, rclsid)) { return CreateFactory(riid, ppv, State_Sync); }
hResult = CLSIDFromString(OVERLAY_GUID_WARNING, (LPCLSID)&guid);
if (!SUCCEEDED(hResult)) { return hResult; }
if (IsEqualCLSID(guid, rclsid)) { return CreateFactory(riid, ppv, State_Warning); }
return CLASS_E_CLASSNOTAVAILABLE;
}
STDAPI DllCanUnloadNow(void)
{
return dllReferenceCount > 0 ? S_FALSE : S_OK;
}
HRESULT RegisterCLSID(LPCOLESTR guidStr, PCWSTR overlayStr, PCWSTR szModule)
{
HRESULT hResult = S_OK;
GUID guid;
hResult = CLSIDFromString(guidStr, (LPCLSID)&guid);
if (hResult != S_OK) {
return hResult;
}
hResult = NCOverlayRegistrationHandler::RegisterCOMObject(szModule, OVERLAY_DESCRIPTION, guid);
if (!SUCCEEDED(hResult)) {
return hResult;
}
hResult = NCOverlayRegistrationHandler::MakeRegistryEntries(guid, overlayStr);
return hResult;
}
HRESULT UnregisterCLSID(LPCOLESTR guidStr, PCWSTR overlayStr)
{
HRESULT hResult = S_OK;
GUID guid;
hResult = CLSIDFromString(guidStr, (LPCLSID)&guid);
if (hResult != S_OK) {
return hResult;
}
hResult = NCOverlayRegistrationHandler::UnregisterCOMObject(guid);
if (!SUCCEEDED(hResult)) {
return hResult;
}
hResult = NCOverlayRegistrationHandler::RemoveRegistryEntries(overlayStr);
return hResult;
}
HRESULT _stdcall DllRegisterServer(void)
{
HRESULT hResult = S_OK;
wchar_t szModule[MAX_PATH];
if (GetModuleFileName(instanceHandle, szModule, ARRAYSIZE(szModule)) == 0) {
hResult = HRESULT_FROM_WIN32(GetLastError());
return hResult;
}
hResult = RegisterCLSID(OVERLAY_GUID_ERROR, OVERLAY_NAME_ERROR, szModule);
if (!SUCCEEDED(hResult)) { return hResult; }
hResult = RegisterCLSID(OVERLAY_GUID_OK, OVERLAY_NAME_OK, szModule);
if (!SUCCEEDED(hResult)) { return hResult; }
hResult = RegisterCLSID(OVERLAY_GUID_OK_SHARED, OVERLAY_NAME_OK_SHARED, szModule);
if (!SUCCEEDED(hResult)) { return hResult; }
hResult = RegisterCLSID(OVERLAY_GUID_SYNC, OVERLAY_NAME_SYNC, szModule);
if (!SUCCEEDED(hResult)) { return hResult; }
hResult = RegisterCLSID(OVERLAY_GUID_WARNING, OVERLAY_NAME_WARNING, szModule);
return hResult;
}
STDAPI DllUnregisterServer(void)
{
HRESULT hResult = S_OK;
wchar_t szModule[MAX_PATH];
if (GetModuleFileNameW(instanceHandle, szModule, ARRAYSIZE(szModule)) == 0)
{
hResult = HRESULT_FROM_WIN32(GetLastError());
return hResult;
}
hResult = UnregisterCLSID(OVERLAY_GUID_ERROR, OVERLAY_NAME_ERROR);
if (!SUCCEEDED(hResult)) { return hResult; }
hResult = UnregisterCLSID(OVERLAY_GUID_OK, OVERLAY_NAME_OK);
if (!SUCCEEDED(hResult)) { return hResult; }
hResult = UnregisterCLSID(OVERLAY_GUID_OK_SHARED, OVERLAY_NAME_OK_SHARED);
if (!SUCCEEDED(hResult)) { return hResult; }
hResult = UnregisterCLSID(OVERLAY_GUID_SYNC, OVERLAY_NAME_SYNC);
if (!SUCCEEDED(hResult)) { return hResult; }
hResult = UnregisterCLSID(OVERLAY_GUID_WARNING, OVERLAY_NAME_WARNING);
return hResult;
}
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