mirror of
https://github.com/reactos/reactos.git
synced 2024-06-25 23:41:35 +00:00
494 lines
14 KiB
C++
494 lines
14 KiB
C++
/*
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* PROJECT: ReactOS Compatibility Layer Shell Extension
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* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
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* PURPOSE: CLayerUIPropPage implementation
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* COPYRIGHT: Copyright 2015-2019 Mark Jansen (mark.jansen@reactos.org)
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*/
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#include "precomp.h"
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#include <shlwapi.h>
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#include <shellapi.h>
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#include <shellutils.h>
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#include <strsafe.h>
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#include <apphelp.h>
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#include <windowsx.h>
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#include <sfc.h>
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const GUID CLSID_CLayerUIPropPage = { 0x513D916F, 0x2A8E, 0x4F51, { 0xAE, 0xAB, 0x0C, 0xBC, 0x76, 0xFB, 0x1A, 0xF8 } };
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#define GPLK_USER 1
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#define GPLK_MACHINE 2
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#define MAX_LAYER_LENGTH 256
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static struct {
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const PCWSTR Display;
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const PCWSTR Name;
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} g_CompatModes[] = {
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{ L"Windows 95", L"WIN95" },
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{ L"Windows 98/ME", L"WIN98" },
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{ L"Windows NT 4.0 (SP5)", L"NT4SP5" },
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{ L"Windows 2000", L"WIN2000" },
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{ L"Windows XP (SP3)", L"WINXPSP3" },
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{ L"Windows Server 2003 (SP1)", L"WINSRV03SP1" },
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{ L"Windows Server 2008 (SP1)", L"WINSRV08SP1" },
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{ L"Windows Vista (SP2)", L"VISTASP2" },
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{ L"Windows 7", L"WIN7RTM" },
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{ L"Windows 7 (SP1)", L"WIN7SP1" },
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{ L"Windows 8.1", L"WIN81RTM" },
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{ L"Windows 10", L"WIN10RTM" },
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{ L"Windows Server 2016", L"WINSRV16RTM" },
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{ L"Windows Server 2019", L"WINSRV19RTM" },
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{ NULL, NULL }
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};
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static struct {
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const PCWSTR Name;
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DWORD Id;
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} g_Layers[] = {
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{ L"256COLOR", IDC_CHKRUNIN256COLORS },
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{ L"640X480", IDC_CHKRUNIN640480RES },
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{ L"DISABLETHEMES", IDC_CHKDISABLEVISUALTHEMES },
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#if 0
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{ L"DISABLEDWM", IDC_??, TRUE },
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{ L"HIGHDPIAWARE", IDC_??, TRUE },
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{ L"RUNASADMIN", IDC_??, TRUE },
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#endif
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{ NULL, 0 }
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};
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static const WCHAR* g_AllowedExtensions[] = {
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L".exe",
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L".msi",
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L".pif",
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L".bat",
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L".cmd",
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0
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};
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BOOL IsBuiltinLayer(PCWSTR Name)
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{
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size_t n;
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for (n = 0; g_Layers[n].Name; ++n)
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{
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if (!wcsicmp(g_Layers[n].Name, Name))
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{
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return TRUE;
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}
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}
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for (n = 0; g_CompatModes[n].Name; ++n)
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{
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if (!wcsicmp(g_CompatModes[n].Name, Name))
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{
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return TRUE;
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}
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}
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return FALSE;
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}
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void ACDBG_FN(PCSTR FunctionName, PCWSTR Format, ...)
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{
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WCHAR Buffer[512];
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WCHAR* Current = Buffer;
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size_t Length = _countof(Buffer);
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StringCchPrintfExW(Current, Length, &Current, &Length, STRSAFE_NULL_ON_FAILURE, L"[%-20S] ", FunctionName);
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va_list ArgList;
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va_start(ArgList, Format);
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StringCchVPrintfExW(Current, Length, &Current, &Length, STRSAFE_NULL_ON_FAILURE, Format, ArgList);
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va_end(ArgList);
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OutputDebugStringW(Buffer);
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}
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#define ACDBG(fmt, ...) ACDBG_FN(__FUNCTION__, fmt, ##__VA_ARGS__ )
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CLayerUIPropPage::CLayerUIPropPage()
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: m_IsSfcProtected(FALSE)
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, m_AllowPermLayer(FALSE)
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, m_LayerQueryFlags(GPLK_USER) /* TODO: When do we read from HKLM? */
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, m_RegistryOSMode(0)
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, m_OSMode(0)
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, m_RegistryEnabledLayers(0)
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, m_EnabledLayers(0)
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{
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CComBSTR title;
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title.LoadString(g_hModule, IDS_COMPAT_TITLE);
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m_psp.pszTitle = title.Detach();
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m_psp.dwFlags |= PSP_USETITLE;
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}
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CLayerUIPropPage::~CLayerUIPropPage()
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{
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CComBSTR title;
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title.Attach((BSTR)m_psp.pszTitle);
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}
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HRESULT CLayerUIPropPage::InitFile(PCWSTR Filename)
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{
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CString ExpandedFilename;
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DWORD dwRequired = ExpandEnvironmentStringsW(Filename, NULL, 0);
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if (dwRequired > 0)
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{
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LPWSTR Buffer = ExpandedFilename.GetBuffer(dwRequired);
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DWORD dwReturned = ExpandEnvironmentStringsW(Filename, Buffer, dwRequired);
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if (dwRequired == dwReturned)
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{
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ExpandedFilename.ReleaseBufferSetLength(dwReturned - 1);
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ACDBG(L"Expanded '%s' => '%s'\r\n", Filename, (PCWSTR)ExpandedFilename);
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}
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else
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{
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ExpandedFilename.ReleaseBufferSetLength(0);
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ExpandedFilename = Filename;
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ACDBG(L"Failed during expansion '%s'\r\n", Filename);
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}
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}
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else
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{
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ACDBG(L"Failed to expand '%s'\r\n", Filename);
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ExpandedFilename = Filename;
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}
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PCWSTR pwszExt = PathFindExtensionW(ExpandedFilename);
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if (!pwszExt)
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{
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ACDBG(L"Failed to find an extension: '%s'\r\n", (PCWSTR)ExpandedFilename);
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return E_FAIL;
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}
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if (!wcsicmp(pwszExt, L".lnk"))
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{
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WCHAR Buffer[MAX_PATH];
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if (!GetExeFromLnk(ExpandedFilename, Buffer, _countof(Buffer)))
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{
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ACDBG(L"Failed to read link target from: '%s'\r\n", (PCWSTR)ExpandedFilename);
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return E_FAIL;
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}
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if (!wcsicmp(Buffer, ExpandedFilename))
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{
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ACDBG(L"Link redirects to itself: '%s'\r\n", (PCWSTR)ExpandedFilename);
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return E_FAIL;
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}
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return InitFile(Buffer);
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}
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CString tmp;
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if (tmp.GetEnvironmentVariable(L"SystemRoot"))
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{
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tmp += L"\\System32";
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if (ExpandedFilename.GetLength() >= tmp.GetLength() &&
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ExpandedFilename.Left(tmp.GetLength()).MakeLower() == tmp.MakeLower())
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{
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ACDBG(L"Ignoring System32: %s\r\n", (PCWSTR)ExpandedFilename);
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return E_FAIL;
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}
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tmp.GetEnvironmentVariable(L"SystemRoot");
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tmp += L"\\WinSxs";
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if (ExpandedFilename.GetLength() >= tmp.GetLength() &&
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ExpandedFilename.Left(tmp.GetLength()).MakeLower() == tmp.MakeLower())
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{
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ACDBG(L"Ignoring WinSxs: %s\r\n", (PCWSTR)ExpandedFilename);
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return E_FAIL;
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}
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}
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for (size_t n = 0; g_AllowedExtensions[n]; ++n)
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{
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if (!wcsicmp(g_AllowedExtensions[n], pwszExt))
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{
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m_Filename = ExpandedFilename;
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ACDBG(L"Got: %s\r\n", (PCWSTR)ExpandedFilename);
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m_IsSfcProtected = SfcIsFileProtected(NULL, m_Filename);
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m_AllowPermLayer = AllowPermLayer(ExpandedFilename);
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return S_OK;
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}
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}
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ACDBG(L"Extension not included: '%s'\r\n", pwszExt);
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return E_FAIL;
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}
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static BOOL GetLayerInfo(PCWSTR Filename, DWORD QueryFlags, PDWORD OSMode, PDWORD Enabledlayers, CSimpleArray<CString>& customLayers)
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{
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WCHAR wszLayers[MAX_LAYER_LENGTH] = { 0 };
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DWORD dwBytes = sizeof(wszLayers);
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*OSMode = *Enabledlayers = 0;
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customLayers.RemoveAll();
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if (!SdbGetPermLayerKeys(Filename, wszLayers, &dwBytes, QueryFlags))
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return FALSE;
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for (PWCHAR Layer = wcstok(wszLayers, L" "); Layer; Layer = wcstok(NULL, L" "))
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{
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size_t n;
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for (n = 0; g_Layers[n].Name; ++n)
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{
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if (!wcsicmp(g_Layers[n].Name, Layer))
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{
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*Enabledlayers |= (1<<n);
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break;
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}
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}
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/* Did we find it? */
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if (g_Layers[n].Name)
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continue;
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for (n = 0; g_CompatModes[n].Name; ++n)
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{
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if (!wcsicmp(g_CompatModes[n].Name, Layer))
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{
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*OSMode = n+1;
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break;
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}
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}
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/* Did we find it? */
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if (g_CompatModes[n].Name)
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continue;
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/* Must be a 'custom' layer */
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customLayers.Add(Layer);
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}
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return TRUE;
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}
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int CLayerUIPropPage::OnSetActive()
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{
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if (!GetLayerInfo(m_Filename, m_LayerQueryFlags, &m_RegistryOSMode, &m_RegistryEnabledLayers, m_RegistryCustomLayers))
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m_RegistryOSMode = m_RegistryEnabledLayers = 0;
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for (size_t n = 0; g_Layers[n].Name; ++n)
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CheckDlgButton(g_Layers[n].Id, (m_RegistryEnabledLayers & (1<<n)) ? BST_CHECKED : BST_UNCHECKED);
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CheckDlgButton(IDC_CHKRUNCOMPATIBILITY, m_RegistryOSMode ? BST_CHECKED : BST_UNCHECKED);
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if (m_RegistryOSMode)
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ComboBox_SetCurSel(GetDlgItem(IDC_COMPATIBILITYMODE), m_RegistryOSMode-1);
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m_CustomLayers = m_RegistryCustomLayers;
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UpdateControls();
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return 0;
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}
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static BOOL ArrayEquals(const CSimpleArray<CString>& lhs, const CSimpleArray<CString>& rhs)
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{
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if (lhs.GetSize() != rhs.GetSize())
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return FALSE;
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for (int n = 0; n < lhs.GetSize(); ++n)
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{
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if (lhs[n] != rhs[n])
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return FALSE;
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}
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return TRUE;
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}
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BOOL CLayerUIPropPage::HasChanges() const
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{
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if (m_RegistryEnabledLayers != m_EnabledLayers)
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return TRUE;
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if (m_RegistryOSMode != m_OSMode)
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return TRUE;
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if (!ArrayEquals(m_RegistryCustomLayers, m_CustomLayers))
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return TRUE;
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return FALSE;
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}
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int CLayerUIPropPage::OnApply()
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{
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if (HasChanges())
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{
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BOOL bMachine = m_LayerQueryFlags == GPLK_MACHINE;
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for (size_t n = 0; g_CompatModes[n].Name; ++n)
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SetPermLayerState(m_Filename, g_CompatModes[n].Name, 0, bMachine, (n+1) == m_OSMode);
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for (size_t n = 0; g_Layers[n].Name; ++n)
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{
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SetPermLayerState(m_Filename, g_Layers[n].Name, 0, bMachine, ((1<<n) & m_EnabledLayers) != 0);
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}
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/* Disable all old values */
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for (int j = 0; j < m_RegistryCustomLayers.GetSize(); j++)
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{
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SetPermLayerState(m_Filename, m_RegistryCustomLayers[j].GetString(), 0, bMachine, FALSE);
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}
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/* Enable all new values */
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for (int j = 0; j < m_CustomLayers.GetSize(); j++)
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{
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SetPermLayerState(m_Filename, m_CustomLayers[j].GetString(), 0, bMachine, TRUE);
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}
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SHChangeNotify(SHCNE_UPDATEITEM, SHCNF_PATHW, (PCWSTR)m_Filename, NULL);
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}
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return PSNRET_NOERROR;
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}
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LRESULT CLayerUIPropPage::OnInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
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{
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HWND cboMode = GetDlgItem(IDC_COMPATIBILITYMODE);
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for (size_t n = 0; g_CompatModes[n].Display; ++n)
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ComboBox_AddString(cboMode, g_CompatModes[n].Display);
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ComboBox_SetCurSel(cboMode, 4);
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CStringW explanation;
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if (!m_AllowPermLayer)
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{
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explanation.LoadString(g_hModule, IDS_FAILED_NETWORK);
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DisableControls();
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ACDBG(L"AllowPermLayer returned FALSE\r\n");
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}
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else if (m_IsSfcProtected)
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{
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explanation.LoadString(g_hModule, IDS_FAILED_PROTECTED);
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DisableControls();
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ACDBG(L"Protected OS file\r\n");
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}
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else
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{
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return TRUE;
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}
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SetDlgItemTextW(IDC_EXPLANATION, explanation);
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return TRUE;
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}
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INT_PTR CLayerUIPropPage::DisableControls()
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{
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::EnableWindow(GetDlgItem(IDC_COMPATIBILITYMODE), 0);
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::EnableWindow(GetDlgItem(IDC_CHKRUNCOMPATIBILITY), 0);
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for (size_t n = 0; g_Layers[n].Name; ++n)
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::EnableWindow(GetDlgItem(g_Layers[n].Id), 0);
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::EnableWindow(GetDlgItem(IDC_EDITCOMPATIBILITYMODES), 0);
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return TRUE;
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}
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void CLayerUIPropPage::UpdateControls()
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{
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m_OSMode = 0, m_EnabledLayers = 0;
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BOOL ModeEnabled = IsDlgButtonChecked(IDC_CHKRUNCOMPATIBILITY);
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if (ModeEnabled)
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m_OSMode = ComboBox_GetCurSel(GetDlgItem(IDC_COMPATIBILITYMODE))+1;
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::EnableWindow(GetDlgItem(IDC_COMPATIBILITYMODE), ModeEnabled);
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for (size_t n = 0; g_Layers[n].Name; ++n)
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{
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m_EnabledLayers |= IsDlgButtonChecked(g_Layers[n].Id) ? (1<<n) : 0;
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::ShowWindow(GetDlgItem(g_Layers[n].Id), SW_SHOW);
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}
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CStringW customLayers;
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for (int j = 0; j < m_CustomLayers.GetSize(); ++j)
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{
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if (j > 0)
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customLayers += L", ";
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customLayers += m_CustomLayers[j];
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}
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SetDlgItemTextW(IDC_ENABLED_LAYERS, customLayers);
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SetModified(HasChanges());
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}
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LRESULT CLayerUIPropPage::OnCtrlCommand(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL &bHandled)
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{
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UpdateControls();
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return 0;
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}
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LRESULT CLayerUIPropPage::OnEditModes(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL &bHandled)
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{
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if (ShowEditCompatModes(m_hWnd, this))
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UpdateControls();
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return 0;
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}
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LRESULT CLayerUIPropPage::OnClickNotify(INT uCode, LPNMHDR hdr, BOOL& bHandled)
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{
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if (hdr->idFrom == IDC_INFOLINK)
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ShellExecute(NULL, L"open", L"https://reactos.org/forum/viewforum.php?f=4", NULL, NULL, SW_SHOW);
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return 0;
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}
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static BOOL DisableShellext()
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{
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HKEY hkey;
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LSTATUS ret = RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Policies\\Microsoft\\Windows\\AppCompat", 0, KEY_QUERY_VALUE, &hkey);
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BOOL Disable = FALSE;
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if (ret == ERROR_SUCCESS)
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{
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DWORD dwValue = 0;
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DWORD type, size = sizeof(dwValue);
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ret = RegQueryValueExW(hkey, L"DisableEngine", NULL, &type, (PBYTE)&dwValue, &size);
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if (ret == ERROR_SUCCESS && type == REG_DWORD)
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{
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Disable = !!dwValue;
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}
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if (!Disable)
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{
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size = sizeof(dwValue);
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ret = RegQueryValueExW(hkey, L"DisablePropPage", NULL, &type, (PBYTE)&dwValue, &size);
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if (ret == ERROR_SUCCESS && type == REG_DWORD)
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{
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Disable = !!dwValue;
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}
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}
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RegCloseKey(hkey);
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}
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return Disable;
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}
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STDMETHODIMP CLayerUIPropPage::Initialize(PCIDLIST_ABSOLUTE pidlFolder, LPDATAOBJECT pDataObj, HKEY hkeyProgID)
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{
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FORMATETC etc = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
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STGMEDIUM stg;
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if (DisableShellext())
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return E_ACCESSDENIED;
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HRESULT hr = pDataObj->GetData(&etc, &stg);
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if (FAILED(hr))
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{
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ACDBG(L"Failed to retrieve Data from pDataObj.\r\n");
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return E_INVALIDARG;
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}
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hr = E_FAIL;
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HDROP hdrop = (HDROP)GlobalLock(stg.hGlobal);
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if (hdrop)
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{
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UINT uNumFiles = DragQueryFileW(hdrop, 0xFFFFFFFF, NULL, 0);
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if (uNumFiles == 1)
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{
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WCHAR szFile[MAX_PATH * 2];
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if (DragQueryFileW(hdrop, 0, szFile, _countof(szFile)))
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{
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this->AddRef();
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hr = InitFile(szFile);
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}
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else
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{
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ACDBG(L"Failed to query the file.\r\n");
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}
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}
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else
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{
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ACDBG(L"Invalid number of files: %d\r\n", uNumFiles);
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}
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GlobalUnlock(stg.hGlobal);
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}
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else
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{
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ACDBG(L"Could not lock stg.hGlobal\r\n");
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}
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ReleaseStgMedium(&stg);
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return hr;
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}
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