/**
 * FreeRDP: A Remote Desktop Protocol Implementation
 *
 * Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <winpr/crt.h>
#include <winpr/print.h>
#include <freerdp/log.h>

#include "win_rdp.h"

#include "win_wds.h"

/**
 * Windows Desktop Sharing API:
 * http://blogs.msdn.com/b/rds/archive/2007/03/08/windows-desktop-sharing-api.aspx
 *
 * Windows Desktop Sharing Interfaces:
 * http://msdn.microsoft.com/en-us/library/aa373871%28v=vs.85%29.aspx
 *
 * Offer Remote Assistance Sample C:
 * http://msdn.microsoft.com/en-us/library/ms811079.aspx#remoteassistanceapi_topic2b
 *
 * Remote Assistance in XP: Programmatically establish an RDP session:
 * http://www.codeproject.com/Articles/29939/Remote-Assistance-in-XP-Programmatically-establish
 */

#undef DEFINE_GUID
#define INITGUID

#include <initguid.h>

#define TAG SERVER_TAG("shadow.win")

DEFINE_GUID(CLSID_RDPSession,0x9B78F0E6,0x3E05,0x4A5B,0xB2,0xE8,0xE7,0x43,0xA8,0x95,0x6B,0x65);
DEFINE_GUID(DIID__IRDPSessionEvents,0x98a97042,0x6698,0x40e9,0x8e,0xfd,0xb3,0x20,0x09,0x90,0x00,0x4b);
DEFINE_GUID(IID_IRDPSRAPISharingSession,0xeeb20886,0xe470,0x4cf6,0x84,0x2b,0x27,0x39,0xc0,0xec,0x5c,0xfb);
DEFINE_GUID(IID_IRDPSRAPIAttendee,0xec0671b3,0x1b78,0x4b80,0xa4,0x64,0x91,0x32,0x24,0x75,0x43,0xe3);
DEFINE_GUID(IID_IRDPSRAPIAttendeeManager,0xba3a37e8,0x33da,0x4749,0x8d,0xa0,0x07,0xfa,0x34,0xda,0x79,0x44);
DEFINE_GUID(IID_IRDPSRAPISessionProperties,0x339b24f2,0x9bc0,0x4f16,0x9a,0xac,0xf1,0x65,0x43,0x3d,0x13,0xd4);
DEFINE_GUID(CLSID_RDPSRAPIApplicationFilter,0xe35ace89,0xc7e8,0x427e,0xa4,0xf9,0xb9,0xda,0x07,0x28,0x26,0xbd);
DEFINE_GUID(CLSID_RDPSRAPIInvitationManager,0x53d9c9db,0x75ab,0x4271,0x94,0x8a,0x4c,0x4e,0xb3,0x6a,0x8f,0x2b);

static ULONG Shadow_IRDPSessionEvents_RefCount = 0;

const char* GetRDPSessionEventString(DISPID id)
{
	switch (id)
	{
		case DISPID_RDPSRAPI_EVENT_ON_ATTENDEE_CONNECTED:
			return "OnAttendeeConnected";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_ATTENDEE_DISCONNECTED:
			return "OnAttendeeDisconnected";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_ATTENDEE_UPDATE:
			return "OnAttendeeUpdate";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_ERROR:
			return "OnError";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIEWER_CONNECTED:
			return "OnConnectionEstablished";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIEWER_DISCONNECTED:
			return "OnConnectionTerminated";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIEWER_AUTHENTICATED:
			return "OnConnectionAuthenticated";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIEWER_CONNECTFAILED:
			return "OnConnectionFailed";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_CTRLLEVEL_CHANGE_REQUEST:
			return "OnControlLevelChangeRequest";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_GRAPHICS_STREAM_PAUSED:
			return "OnGraphicsStreamPaused";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_GRAPHICS_STREAM_RESUMED:
			return "OnGraphicsStreamResumed";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIRTUAL_CHANNEL_JOIN:
			return "OnChannelJoin";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIRTUAL_CHANNEL_LEAVE:
			return "OnChannelLeave";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIRTUAL_CHANNEL_DATARECEIVED:
			return "OnChannelDataReceived";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIRTUAL_CHANNEL_SENDCOMPLETED:
			return "OnChannelDataSent";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_APPLICATION_OPEN:
			return "OnApplicationOpen";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_APPLICATION_CLOSE:
			return "OnApplicationClose";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_APPLICATION_UPDATE:
			return "OnApplicationUpdate";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_WINDOW_OPEN:
			return "OnWindowOpen";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_WINDOW_CLOSE:
			return "OnWindowClose";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_WINDOW_UPDATE:
			return "OnWindowUpdate";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_APPFILTER_UPDATE:
			return "OnAppFilterUpdate";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_SHARED_RECT_CHANGED:
			return "OnSharedRectChanged";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_FOCUSRELEASED:
			return "OnFocusReleased";
			break;

		case DISPID_RDPSRAPI_EVENT_ON_SHARED_DESKTOP_SETTINGS_CHANGED:
			return "OnSharedDesktopSettingsChanged";
			break;

		case DISPID_RDPAPI_EVENT_ON_BOUNDING_RECT_CHANGED:
			return "OnViewingSizeChanged";
			break;
	}

	return "OnUnknown";
}

static HRESULT STDMETHODCALLTYPE Shadow_IRDPSessionEvents_QueryInterface( 
            __RPC__in _IRDPSessionEvents * This,
            /* [in] */ __RPC__in REFIID riid,
            /* [annotation][iid_is][out] */ 
            _COM_Outptr_  void **ppvObject)
{
	*ppvObject = NULL;

	if (IsEqualIID(riid, &DIID__IRDPSessionEvents) ||
		IsEqualIID(riid, &IID_IDispatch) || IsEqualIID(riid, &IID_IUnknown))
	{
		*ppvObject = This;
	}

	if (!(*ppvObject))
		return E_NOINTERFACE;

	This->lpVtbl->AddRef(This);

	return S_OK;
}
        
static ULONG STDMETHODCALLTYPE Shadow_IRDPSessionEvents_AddRef( 
            __RPC__in _IRDPSessionEvents * This)
{
	Shadow_IRDPSessionEvents_RefCount++;
	return Shadow_IRDPSessionEvents_RefCount;
}
        
static ULONG STDMETHODCALLTYPE Shadow_IRDPSessionEvents_Release( 
            __RPC__in _IRDPSessionEvents * This)
{
	if (!Shadow_IRDPSessionEvents_RefCount)
		return 0;

	Shadow_IRDPSessionEvents_RefCount--;

	return Shadow_IRDPSessionEvents_RefCount;
}
        
static HRESULT STDMETHODCALLTYPE Shadow_IRDPSessionEvents_GetTypeInfoCount( 
            __RPC__in _IRDPSessionEvents * This,
            /* [out] */ __RPC__out UINT *pctinfo)
{
	WLog_INFO(TAG, "Shadow_IRDPSessionEvents_GetTypeInfoCount");
	*pctinfo = 1;
	return S_OK;
}
        
static HRESULT STDMETHODCALLTYPE Shadow_IRDPSessionEvents_GetTypeInfo( 
            __RPC__in _IRDPSessionEvents * This,
            /* [in] */ UINT iTInfo,
            /* [in] */ LCID lcid,
            /* [out] */ __RPC__deref_out_opt ITypeInfo **ppTInfo)
{
	WLog_INFO(TAG, "Shadow_IRDPSessionEvents_GetTypeInfo");
	return E_NOTIMPL;
}
        
static HRESULT STDMETHODCALLTYPE Shadow_IRDPSessionEvents_GetIDsOfNames( 
            __RPC__in _IRDPSessionEvents * This,
            /* [in] */ __RPC__in REFIID riid,
            /* [size_is][in] */ __RPC__in_ecount_full(cNames) LPOLESTR *rgszNames,
            /* [range][in] */ __RPC__in_range(0,16384) UINT cNames,
            /* [in] */ LCID lcid,
            /* [size_is][out] */ __RPC__out_ecount_full(cNames) DISPID *rgDispId)
{
	WLog_INFO(TAG, "Shadow_IRDPSessionEvents_GetIDsOfNames");
	return E_NOTIMPL;
}
        
static HRESULT STDMETHODCALLTYPE Shadow_IRDPSessionEvents_Invoke( 
            _IRDPSessionEvents * This,
            /* [annotation][in] */ 
            _In_  DISPID dispIdMember,
            /* [annotation][in] */ 
            _In_  REFIID riid,
            /* [annotation][in] */ 
            _In_  LCID lcid,
            /* [annotation][in] */ 
            _In_  WORD wFlags,
            /* [annotation][out][in] */ 
            _In_  DISPPARAMS *pDispParams,
            /* [annotation][out] */ 
            _Out_opt_  VARIANT *pVarResult,
            /* [annotation][out] */ 
            _Out_opt_  EXCEPINFO *pExcepInfo,
            /* [annotation][out] */ 
            _Out_opt_  UINT *puArgErr)
{
	HRESULT hr;
	VARIANT vr;
	UINT uArgErr;

	WLog_INFO(TAG, "%s (%d)", GetRDPSessionEventString(dispIdMember), dispIdMember);

	switch (dispIdMember)
	{
		case DISPID_RDPSRAPI_EVENT_ON_ATTENDEE_CONNECTED:
			{
				int level;
				IDispatch* pDispatch;
				IRDPSRAPIAttendee* pAttendee;

				vr.vt = VT_DISPATCH;
				vr.pdispVal = NULL;

				hr = DispGetParam(pDispParams, 0, VT_DISPATCH, &vr, &uArgErr);

				if (FAILED(hr))
				{
					WLog_ERR(TAG, "%s DispGetParam(0, VT_DISPATCH) failure: 0x%08X",
						GetRDPSessionEventString(dispIdMember), hr);
					return hr;
				}
				
				pDispatch = vr.pdispVal;

				hr = pDispatch->lpVtbl->QueryInterface(pDispatch, &IID_IRDPSRAPIAttendee, (void**) &pAttendee);

				if (FAILED(hr))
				{
					WLog_INFO(TAG, "%s IDispatch::QueryInterface(IRDPSRAPIAttendee) failure: 0x%08X",
						GetRDPSessionEventString(dispIdMember), hr);
					return hr;
				}

				level = CTRL_LEVEL_VIEW;
				//level = CTRL_LEVEL_INTERACTIVE;

				hr = pAttendee->lpVtbl->put_ControlLevel(pAttendee, level);

				if (FAILED(hr))
				{
					WLog_INFO(TAG, "%s IRDPSRAPIAttendee::put_ControlLevel() failure: 0x%08X",
						GetRDPSessionEventString(dispIdMember), hr);
					return hr;
				}

				pAttendee->lpVtbl->Release(pAttendee);
			}
			break;

		case DISPID_RDPSRAPI_EVENT_ON_ATTENDEE_DISCONNECTED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_ATTENDEE_UPDATE:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_ERROR:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIEWER_CONNECTED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIEWER_DISCONNECTED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIEWER_AUTHENTICATED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIEWER_CONNECTFAILED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_CTRLLEVEL_CHANGE_REQUEST:
			{
				int level;
				IDispatch* pDispatch;
				IRDPSRAPIAttendee* pAttendee;

				vr.vt = VT_INT;
				vr.pdispVal = NULL;

				hr = DispGetParam(pDispParams, 1, VT_INT, &vr, &uArgErr);

				if (FAILED(hr))
				{
					WLog_INFO(TAG, "%s DispGetParam(1, VT_INT) failure: 0x%08X",
						GetRDPSessionEventString(dispIdMember), hr);
					return hr;
				}

				level = vr.intVal;

				vr.vt = VT_DISPATCH;
				vr.pdispVal = NULL;

				hr = DispGetParam(pDispParams, 0, VT_DISPATCH, &vr, &uArgErr);

				if (FAILED(hr))
				{
					WLog_ERR(TAG, "%s DispGetParam(0, VT_DISPATCH) failure: 0x%08X",
						GetRDPSessionEventString(dispIdMember), hr);
					return hr;
				}
				
				pDispatch = vr.pdispVal;

				hr = pDispatch->lpVtbl->QueryInterface(pDispatch, &IID_IRDPSRAPIAttendee, (void**) &pAttendee);

				if (FAILED(hr))
				{
					WLog_INFO(TAG, "%s IDispatch::QueryInterface(IRDPSRAPIAttendee) failure: 0x%08X",
						GetRDPSessionEventString(dispIdMember), hr);
					return hr;
				}

				hr = pAttendee->lpVtbl->put_ControlLevel(pAttendee, level);

				if (FAILED(hr))
				{
					WLog_INFO(TAG, "%s IRDPSRAPIAttendee::put_ControlLevel() failure: 0x%08X",
						GetRDPSessionEventString(dispIdMember), hr);
					return hr;
				}

				pAttendee->lpVtbl->Release(pAttendee);
			}
			break;

		case DISPID_RDPSRAPI_EVENT_ON_GRAPHICS_STREAM_PAUSED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_GRAPHICS_STREAM_RESUMED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIRTUAL_CHANNEL_JOIN:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIRTUAL_CHANNEL_LEAVE:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIRTUAL_CHANNEL_DATARECEIVED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_VIRTUAL_CHANNEL_SENDCOMPLETED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_APPLICATION_OPEN:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_APPLICATION_CLOSE:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_APPLICATION_UPDATE:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_WINDOW_OPEN:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_WINDOW_CLOSE:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_WINDOW_UPDATE:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_APPFILTER_UPDATE:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_SHARED_RECT_CHANGED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_FOCUSRELEASED:
			break;

		case DISPID_RDPSRAPI_EVENT_ON_SHARED_DESKTOP_SETTINGS_CHANGED:
			break;

		case DISPID_RDPAPI_EVENT_ON_BOUNDING_RECT_CHANGED:
			break;
	}

	return S_OK;
}

static _IRDPSessionEventsVtbl Shadow_IRDPSessionEventsVtbl =
{
	/* IUnknown */
	Shadow_IRDPSessionEvents_QueryInterface,
	Shadow_IRDPSessionEvents_AddRef,
	Shadow_IRDPSessionEvents_Release,

	/* IDispatch */
	Shadow_IRDPSessionEvents_GetTypeInfoCount,
	Shadow_IRDPSessionEvents_GetTypeInfo,
	Shadow_IRDPSessionEvents_GetIDsOfNames,
	Shadow_IRDPSessionEvents_Invoke
};

static _IRDPSessionEvents Shadow_IRDPSessionEvents =
{
	&Shadow_IRDPSessionEventsVtbl
};

static LRESULT CALLBACK ShadowWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch (uMsg)
	{
		case WM_CLOSE:
			DestroyWindow(hwnd);
			break;

		case WM_DESTROY:
			PostQuitMessage(0);
			break;

		default:
			return DefWindowProc(hwnd, uMsg, wParam, lParam);
			break;
	}

	return 0;
}

int win_shadow_wds_wnd_init(winShadowSubsystem* subsystem)
{
	HMODULE hModule;
	HINSTANCE hInstance;
	WNDCLASSEX wndClassEx;

	hModule = GetModuleHandle(NULL);

	ZeroMemory(&wndClassEx, sizeof(WNDCLASSEX));
	wndClassEx.cbSize = sizeof(WNDCLASSEX);
	wndClassEx.style = 0;
	wndClassEx.lpfnWndProc = ShadowWndProc;
	wndClassEx.cbClsExtra = 0;
	wndClassEx.cbWndExtra = 0;
	wndClassEx.hInstance = hModule;
	wndClassEx.hIcon = NULL;
	wndClassEx.hCursor = NULL;
	wndClassEx.hbrBackground = NULL;
	wndClassEx.lpszMenuName = _T("ShadowWndMenu");
	wndClassEx.lpszClassName = _T("ShadowWndClass");
	wndClassEx.hIconSm = NULL;

	if (!RegisterClassEx(&wndClassEx))
	{
		WLog_ERR(TAG, "RegisterClassEx failure");
		return -1;
	}

	hInstance = wndClassEx.hInstance;

	subsystem->hWnd = CreateWindowEx(0, wndClassEx.lpszClassName,
		0, 0, 0, 0, 0, 0, HWND_MESSAGE, 0, hInstance, NULL);

	if (!subsystem->hWnd)
	{
		WLog_INFO(TAG, "CreateWindowEx failure");
		return -1;
	}

	return 1;
}

int win_shadow_wds_init(winShadowSubsystem* subsystem)
{
	int status;
	HRESULT hr;
	DWORD dwCookie;
	long left, top;
	long right, bottom;
	long width, height;
	IUnknown* pUnknown;
	rdpSettings* settings;
	BSTR bstrAuthString;
	BSTR bstrGroupName;
	BSTR bstrPassword;
	BSTR bstrConnectionString;
	BSTR bstrPropertyName;
	VARIANT varPropertyValue;
	rdpAssistanceFile* file;
	IConnectionPoint* pCP;
	IConnectionPointContainer* pCPC;

	win_shadow_wds_wnd_init(subsystem);

	hr = OleInitialize(NULL);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "OleInitialize() failure");
		return -1;
	}

	hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "CoInitialize() failure");
		return -1;
	}

	hr = CoCreateInstance(&CLSID_RDPSession, NULL, CLSCTX_ALL,
		&IID_IRDPSRAPISharingSession, (void**) &(subsystem->pSharingSession));

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "CoCreateInstance(IRDPSRAPISharingSession) failure: 0x%08X", hr);
		return -1;
	}

	pUnknown = (IUnknown*) subsystem->pSharingSession;
	hr = pUnknown->lpVtbl->QueryInterface(pUnknown, &IID_IConnectionPointContainer, (void**) &pCPC);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "QueryInterface(IID_IConnectionPointContainer) failure: 0x%08X", hr);
		return -1;
	}

	pCPC->lpVtbl->FindConnectionPoint(pCPC, &DIID__IRDPSessionEvents, &pCP);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IConnectionPointContainer::FindConnectionPoint(_IRDPSessionEvents) failure: 0x%08X", hr);
		return -1;
	}

	dwCookie = 0;
	subsystem->pSessionEvents = &Shadow_IRDPSessionEvents;
	subsystem->pSessionEvents->lpVtbl->AddRef(subsystem->pSessionEvents);

	hr = pCP->lpVtbl->Advise(pCP, (IUnknown*) subsystem->pSessionEvents, &dwCookie);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IConnectionPoint::Advise(Shadow_IRDPSessionEvents) failure: 0x%08X", hr);
		return -1;
	}

	hr = subsystem->pSharingSession->lpVtbl->put_ColorDepth(subsystem->pSharingSession, 32);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISharingSession::put_ColorDepth() failure: 0x%08X", hr);
		return -1;
	}

	hr = subsystem->pSharingSession->lpVtbl->GetDesktopSharedRect(subsystem->pSharingSession,
		&left, &top, &right, &bottom);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISharingSession::GetDesktopSharedRect() failure: 0x%08X", hr);
		return -1;
	}

	width = right - left;
	height = bottom - top;

	WLog_INFO(TAG, "GetDesktopSharedRect(): left: %d top: %d right: %d bottom: %d width: %d height: %d",
		left, top, right, bottom, width, height);

	hr = subsystem->pSharingSession->lpVtbl->get_VirtualChannelManager(subsystem->pSharingSession,
		&(subsystem->pVirtualChannelMgr));

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISharingSession::get_VirtualChannelManager() failure: 0x%08X", hr);
		return -1;
	}

	hr = subsystem->pSharingSession->lpVtbl->get_ApplicationFilter(subsystem->pSharingSession,
		&(subsystem->pApplicationFilter));

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISharingSession::get_ApplicationFilter() failure: 0x%08X", hr);
		return -1;
	}

	hr = subsystem->pSharingSession->lpVtbl->get_Attendees(subsystem->pSharingSession,
		&(subsystem->pAttendeeMgr));

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISharingSession::get_Attendees() failure: 0x%08X", hr);
		return -1;
	}

	hr = subsystem->pSharingSession->lpVtbl->get_Properties(subsystem->pSharingSession, &(subsystem->pSessionProperties));

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISharingSession::get_Properties() failure: 0x%08X", hr);
		return -1;
	}

	bstrPropertyName = SysAllocString(L"PortId");
	varPropertyValue.vt = VT_I4;
	varPropertyValue.intVal = 40000;

	hr = subsystem->pSessionProperties->lpVtbl->put_Property(subsystem->pSessionProperties,
		bstrPropertyName, varPropertyValue);

	SysFreeString(bstrPropertyName);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISessionProperties::put_Property(PortId) failure: 0x%08X", hr);
		return -1;
	}

	bstrPropertyName = SysAllocString(L"DrvConAttach");
	varPropertyValue.vt = VT_BOOL;
	varPropertyValue.boolVal = VARIANT_TRUE;

	hr = subsystem->pSessionProperties->lpVtbl->put_Property(subsystem->pSessionProperties,
		bstrPropertyName, varPropertyValue);

	SysFreeString(bstrPropertyName);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISessionProperties::put_Property(DrvConAttach) failure: 0x%08X", hr);
		return -1;
	}

	bstrPropertyName = SysAllocString(L"PortProtocol");
	varPropertyValue.vt = VT_I4;

	//varPropertyValue.intVal = 0; // AF_UNSPEC
	varPropertyValue.intVal = 2; // AF_INET
	//varPropertyValue.intVal = 23; // AF_INET6

	hr = subsystem->pSessionProperties->lpVtbl->put_Property(subsystem->pSessionProperties,
		bstrPropertyName, varPropertyValue);

	SysFreeString(bstrPropertyName);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISessionProperties::put_Property(PortProtocol) failure: 0x%08X", hr);
		return -1;
	}

	hr = subsystem->pSharingSession->lpVtbl->Open(subsystem->pSharingSession);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISharingSession::Open() failure: 0x%08X", hr);
		return -1;
	}

	hr = subsystem->pSharingSession->lpVtbl->get_Invitations(subsystem->pSharingSession,
		&(subsystem->pInvitationMgr));

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPISharingSession::get_Invitations() failure");
		return -1;
	}

	bstrAuthString = SysAllocString(L"Shadow");
	bstrGroupName = SysAllocString(L"ShadowGroup");
	bstrPassword = SysAllocString(L"Shadow123!");

	hr = subsystem->pInvitationMgr->lpVtbl->CreateInvitation(subsystem->pInvitationMgr, bstrAuthString,
		bstrGroupName, bstrPassword, 5, &(subsystem->pInvitation));

	SysFreeString(bstrAuthString);
	SysFreeString(bstrGroupName);
	SysFreeString(bstrPassword);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPIInvitationManager::CreateInvitation() failure: 0x%08X", hr);
		return -1;
	}

	hr = subsystem->pInvitation->lpVtbl->get_ConnectionString(subsystem->pInvitation, &bstrConnectionString);

	if (FAILED(hr))
	{
		WLog_ERR(TAG, "IRDPSRAPIInvitation::get_ConnectionString() failure: 0x%08X", hr);
		return -1;
	}

	status = ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) bstrConnectionString,
		((UINT32*) bstrConnectionString)[-1], &(file->ConnectionString2), 0, NULL, NULL);

	SysFreeString(bstrConnectionString);

	if (status < 1)
	{
		WLog_ERR(TAG, "failed to convert connection string");
		return -1;
	}

	file = subsystem->pAssistanceFile = freerdp_assistance_file_new();

	if (!file)
	{
		WLog_ERR(TAG, "freerdp_assistance_file_new() failed");
		return -1;
	}

	status = freerdp_assistance_parse_connection_string2(file);

	if (status < 0)
		return -1;

	WLog_INFO(TAG, "ConnectionString: %s", file->ConnectionString2);

#if 0
	FILE* fp;
	size_t size;

	fp = fopen("inv.xml", "w+b");

	if (fp)
	{
		size = strlen(file->ConnectionString2);
		if (fwrite(file->ConnectionString2, size, 1, fp) != 1 || fwrite("\r\n", 2, 1, fp) != 1)
		{
			fclose(fp);
			WLog_ERR(TAG, "Problem writing to inv.xml");
			return -1;
		}
		fclose(fp);
	}
#endif

	status = win_shadow_rdp_init(subsystem);

	if (status < 0)
	{
		WLog_ERR(TAG, "win_shadow_rdp_init() failure: %d", status);
		return status;
	}

	settings = subsystem->shw->settings;

	freerdp_set_param_bool(settings, FreeRDP_RemoteAssistanceMode, TRUE);

	freerdp_set_param_string(settings, FreeRDP_RemoteAssistanceSessionId, file->RASessionId);

	freerdp_set_param_string(settings, FreeRDP_RemoteAssistanceRCTicket, file->ConnectionString2);

	freerdp_set_param_string(settings, FreeRDP_Domain, "RDP");
	freerdp_set_param_string(settings, FreeRDP_Username, "Shadow");
	freerdp_set_param_string(settings, FreeRDP_RemoteAssistancePassword, "Shadow123!");
	freerdp_set_param_bool(settings, FreeRDP_AutoLogonEnabled, TRUE);

	freerdp_set_param_string(settings, FreeRDP_ServerHostname, file->MachineAddress);
	freerdp_set_param_uint32(settings, FreeRDP_ServerPort, file->MachinePort);

	freerdp_set_param_uint32(settings, FreeRDP_DesktopWidth, width);
	freerdp_set_param_uint32(settings, FreeRDP_DesktopHeight, height);

	status = win_shadow_rdp_start(subsystem);

	if (status < 0)
	{
		WLog_ERR(TAG, "win_shadow_rdp_start() failure: %d", status);
		return status;
	}

	return 1;
}

int win_shadow_wds_uninit(winShadowSubsystem* subsystem)
{
	if (subsystem->pSharingSession)
	{
		subsystem->pSharingSession->lpVtbl->Close(subsystem->pSharingSession);
		subsystem->pSharingSession->lpVtbl->Release(subsystem->pSharingSession);
		subsystem->pSharingSession = NULL;
	}

	if (subsystem->pVirtualChannelMgr)
	{
		subsystem->pVirtualChannelMgr->lpVtbl->Release(subsystem->pVirtualChannelMgr);
		subsystem->pVirtualChannelMgr = NULL;
	}

	if (subsystem->pApplicationFilter)
	{
		subsystem->pApplicationFilter->lpVtbl->Release(subsystem->pApplicationFilter);
		subsystem->pApplicationFilter = NULL;
	}

	if (subsystem->pAttendeeMgr)
	{
		subsystem->pAttendeeMgr->lpVtbl->Release(subsystem->pAttendeeMgr);
		subsystem->pAttendeeMgr = NULL;
	}

	if (subsystem->pSessionProperties)
	{
		subsystem->pSessionProperties->lpVtbl->Release(subsystem->pSessionProperties);
		subsystem->pSessionProperties = NULL;
	}

	if (subsystem->pInvitationMgr)
	{
		subsystem->pInvitationMgr->lpVtbl->Release(subsystem->pInvitationMgr);
		subsystem->pInvitationMgr = NULL;
	}

	if (subsystem->pInvitation)
	{
		subsystem->pInvitation->lpVtbl->Release(subsystem->pInvitation);
		subsystem->pInvitation = NULL;
	}

	if (subsystem->pAssistanceFile)
	{
		freerdp_assistance_file_free(subsystem->pAssistanceFile);
		subsystem->pAssistanceFile = NULL;
	}

	if (subsystem->hWnd)
	{
		DestroyWindow(subsystem->hWnd);
		subsystem->hWnd = NULL;
	}

	if (subsystem->shw)
	{
		win_shadow_rdp_uninit(subsystem);
		subsystem->shw = NULL;
	}

	return 1;
}