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277 lines
11 KiB
C++
Executable file
277 lines
11 KiB
C++
Executable file
//Copyright (C) 2007 Anders Kjersem. Licensed under the zlib/libpng license, see License.txt for details.
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/*
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If UAC is disabled, the runas verb is broken (Vista RTM) so when running as LUA there is no way to elevate so
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we provide our own dialog.
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*/
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#include "UAC.h"
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#ifdef FEAT_CUSTOMRUNASDLG
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#include <Lmcons.h>//UNLEN && GNLEN && PWLEN
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#include <WindowsX.h>
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#include "resource.h"
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#include "NSISUtil.h"
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using namespace NSIS;
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#define ERRAPP_TRYAGAIN (0x20000000|1)
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#define MYMAX_DOMAIN (2+max(GNLEN,MAX_COMPUTERNAME_LENGTH)+1)
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static LPCTSTR g_RunAsDlgTitle=_T("Run as");
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static LPCTSTR g_RunAsHelpText=_T("You may not have the necessary permissions to use all the features of the program you are about to run. You may run this program as a different user or continue to run the program as the current user.");
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static LPCTSTR g_RunAsCurrUsrFmt=_T("&Current user (%s)");//Max 50 chars!
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static LPCTSTR g_RunAsSpecHelp=_T("Run the program as the &following user:");
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FORCEINLINE bool MySetDlgItemText(HWND hDlg,int id,LPCTSTR s) {return MySndDlgItemMsg(hDlg,id,WM_SETTEXT,0,(LPARAM)s)!=0;}
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typedef struct {
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SHELLEXECUTEINFO*pSEI;
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bool AsSelf;
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} RUNASDLGDATA;
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void MyRunAsFmtCurrUserRadio(HWND hDlg,LPCTSTR Fmt) {
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TCHAR bufFullName[MYMAX_DOMAIN+UNLEN+1];
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TCHAR buf[50+MYMAX_DOMAIN+UNLEN+1];
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*bufFullName=0;
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ULONG cch;
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if ((!_GetUserNameEx || !_GetUserNameEx(NameSamCompatible,bufFullName,&(cch=COUNTOF(bufFullName)))) &&
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!_GetUserName(bufFullName,&(cch=COUNTOF(bufFullName))) ) {
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*bufFullName=0;
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}
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wsprintf(buf,Fmt,*bufFullName?bufFullName:_T("?"));
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MySetDlgItemText(hDlg,IDC_RUNASCURR,buf);
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// default the "User name:" to Administrator from shell32
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if (LoadString(GetModuleHandle(_T("SHELL32.dll")),21763, bufFullName, COUNTOF(bufFullName)) > 0) {
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MySetDlgItemText(hDlg,IDC_USERNAME,bufFullName);
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}
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}
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#ifdef FEAT_CUSTOMRUNASDLG_TRANSLATE
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void MyRunAsTranslateDlgString(LPCTSTR StrID,LPTSTR Ini,HWND hDlg,INT_PTR DlgItemId,int special=0) {
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TCHAR buf[MAX_PATH*2];
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DWORD len=GetPrivateProfileString(_T("MyRunAsStrings"),StrID,0,buf,ARRAYSIZE(buf),Ini);
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if (len) {
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if (IDC_RUNASCURR==special)
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MyRunAsFmtCurrUserRadio(hDlg,buf);
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else
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(DlgItemId==-1) ? SetWindowText(hDlg,buf) : MySetDlgItemText(hDlg,DlgItemId,buf);
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}
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}
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void MyRunAsTranslateDlg(HWND hDlg) {
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DWORD len;
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TCHAR buf[MAX_PATH*2];
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HMODULE hDll=GetWindowInstance(hDlg);ASSERT(hDll);
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if ( (len=GetModuleFileName(hDll,buf,ARRAYSIZE(buf))) <1)return;
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buf[len-3]=0;
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lstrcat(buf,_T("lng"));
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MyRunAsTranslateDlgString(_T("DlgTitle"),buf,hDlg,-1);
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MyRunAsTranslateDlgString(_T("HelpText"),buf,hDlg,IDC_HELPTEXT);
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MyRunAsTranslateDlgString(_T("OptCurrUser"),buf,hDlg,IDC_RUNASCURR,IDC_RUNASCURR);
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MyRunAsTranslateDlgString(_T("OptOtherUser"),buf,hDlg,IDC_RUNASSPEC);
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MyRunAsTranslateDlgString(_T("Username"),buf,hDlg,IDC_LBLUSER);
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MyRunAsTranslateDlgString(_T("Pwd"),buf,hDlg,IDC_LBLPWD);
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MyRunAsTranslateDlgString(_T("OK"),buf,hDlg,IDOK);
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MyRunAsTranslateDlgString(_T("Cancel"),buf,hDlg,IDCANCEL);
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HWND h=GetDlgItem(hDlg,IDC_RUNASCURR);
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if (GetPrivateProfileInt(_T("MyRunAsCfg"),_T("DisableCurrUserOpt"),false,buf))EnableWindow(h,false);
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if (GetPrivateProfileInt(_T("MyRunAsCfg"),_T("HideCurrUserOpt"),false,buf))ShowWindow(h,false);
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}
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#endif
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bool ErrorIsLogonError(DWORD err) {
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switch (err) {
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case ERROR_LOGON_FAILURE:
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case ERROR_ACCOUNT_RESTRICTION:
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case ERROR_INVALID_LOGON_HOURS:
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case ERROR_INVALID_WORKSTATION:
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case ERROR_PASSWORD_EXPIRED:
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case ERROR_ACCOUNT_DISABLED:
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case ERROR_NONE_MAPPED:
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case ERROR_NO_SUCH_USER:
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case ERROR_INVALID_ACCOUNT_NAME:
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return true;
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}
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return false;
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}
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void VerifyOKBtn(HWND hDlg,RUNASDLGDATA*pRADD) {
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const bool HasText=pRADD?(pRADD->AsSelf?true:MySndDlgItemMsg(hDlg,IDC_USERNAME,WM_GETTEXTLENGTH)>0):false;
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EnableWindow(GetDlgItem(hDlg,IDOK),HasText);
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}
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void SetDlgState(HWND hDlg,bool AsSelf,RUNASDLGDATA*pRADD) {
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if (pRADD)pRADD->AsSelf=AsSelf;
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MySndDlgItemMsg(hDlg,IDC_RUNASCURR,BM_SETCHECK,AsSelf?BST_CHECKED:BST_UNCHECKED);
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MySndDlgItemMsg(hDlg,IDC_RUNASSPEC,BM_SETCHECK,!AsSelf?BST_CHECKED:BST_UNCHECKED);
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int ids[]={IDC_USERNAME,IDC_PASSWORD,IDC_LBLUSER,IDC_LBLPWD};
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for (int i=0; i<COUNTOF(ids);++i)EnableWindow(GetDlgItem(hDlg,ids[i]),!AsSelf);
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VerifyOKBtn(hDlg,pRADD);
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}
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INT_PTR CALLBACK MyRunAsDlgProc(HWND hwnd,UINT uMsg,WPARAM wp,LPARAM lp) {
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RUNASDLGDATA*pRADD=(RUNASDLGDATA*)GetWindowLongPtr(hwnd,GWLP_USERDATA);
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switch(uMsg) {
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//case WM_DESTROY:
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// break;
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case WM_CLOSE:
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return DestroyWindow(hwnd);
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case WM_INITDIALOG:
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{
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pRADD=(RUNASDLGDATA*)lp;ASSERT(pRADD);
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SetWindowLongPtr(hwnd,GWLP_USERDATA,lp);
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Edit_LimitText(GetDlgItem(hwnd,IDC_USERNAME),UNLEN+1+MYMAX_DOMAIN); //room for "foo@BAR" or "BAR\foo"
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Edit_LimitText(GetDlgItem(hwnd,IDC_PASSWORD),PWLEN);
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const HINSTANCE hSh32=GetModuleHandle(_T("SHELL32.dll"));
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const HICON hIco=(HICON)LoadImage(hSh32,MAKEINTRESOURCE(194),IMAGE_ICON,32,32,LR_SHARED);
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MySndDlgItemMsg(hwnd,IDC_SHICON,STM_SETICON,(WPARAM)hIco);
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SendMessage(hwnd,WM_SETTEXT,0,(LPARAM)g_RunAsDlgTitle);
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MySetDlgItemText(hwnd,IDC_HELPTEXT,g_RunAsHelpText);
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MyRunAsFmtCurrUserRadio(hwnd,g_RunAsCurrUsrFmt);
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MySetDlgItemText(hwnd,IDC_RUNASSPEC,g_RunAsSpecHelp);
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#ifdef FEAT_CUSTOMRUNASDLG_TRANSLATE
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MyRunAsTranslateDlg(hwnd);
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#endif
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SetDlgState(hwnd,false,pRADD);
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#if defined(BUILD_DBG) && 0 //auto login used during testing ;)
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SetDlgItemText(hwnd,IDC_USERNAME,_T("root"));
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SetDlgItemText(hwnd,IDC_PASSWORD,_T("???"));
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Sleep(1);PostMessage(hwnd,WM_COMMAND,IDOK,0);
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#endif
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}
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return true;
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case WM_COMMAND:
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{
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switch(HIWORD(wp)) {
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case EN_CHANGE:
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VerifyOKBtn(hwnd,pRADD);
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break;
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case EN_SETFOCUS:
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case BN_CLICKED:
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if (LOWORD(wp)<=IDCANCEL)break;
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SetDlgState(hwnd,LOWORD(wp)==IDC_RUNASCURR,pRADD);
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return FALSE;
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}
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INT_PTR exitcode=!pRADD?-1:IDCANCEL;
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switch(LOWORD(wp)) {
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case IDOK:
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if (pRADD) {
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SHELLEXECUTEINFO&sei=*pRADD->pSEI;
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PROCESS_INFORMATION pi={0};
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DWORD ec=NO_ERROR;
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WCHAR*wszExec;//Also used as TCHAR buffer in AsSelf mode
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bool PerformTCharFmt=pRADD->AsSelf;
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//const DWORD CommonStartupInfoFlags=STARTF_FORCEONFEEDBACK;
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#ifdef UNICODE
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PerformTCharFmt=true;
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#endif
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wszExec=(WCHAR*)NSIS::MemAlloc( (pRADD->AsSelf?sizeof(TCHAR):sizeof(WCHAR)) *(lstrlen(sei.lpFile)+1+lstrlen(sei.lpParameters)+1));
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if (!wszExec)ec=ERROR_OUTOFMEMORY;
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if (PerformTCharFmt)wsprintf((TCHAR*)wszExec,_T("%s%s%s"),sei.lpFile,((sei.lpParameters&&*sei.lpParameters)?_T(" "):_T("")),sei.lpParameters);
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if (!ec) {
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if (pRADD->AsSelf) {
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STARTUPINFO si={sizeof(si)};
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TRACEF("MyRunAs:CreateProcess:%s|\n",wszExec);
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ec=(CreateProcess(0,(TCHAR*)wszExec,0,0,false,0,0,0,&si,&pi)?NO_ERROR:GetLastError());
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}
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else {
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//All Wide strings!
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WCHAR wszPwd[PWLEN+1];
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WCHAR wszUName[UNLEN+1+MYMAX_DOMAIN+1];
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STARTUPINFOW siw={sizeof(siw)};
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WCHAR*p;
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#ifndef UNICODE
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//Build unicode string, we already know the buffer is big enough so no error handling
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p=wszExec;
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MultiByteToWideChar(CP_THREAD_ACP,0,sei.lpFile,-1,p,0xFFFFFF);
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if (sei.lpParameters && *sei.lpParameters) {
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p+=lstrlen(sei.lpFile);*p++=L' ';*p=0;
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MultiByteToWideChar(CP_THREAD_ACP,0,sei.lpParameters,-1,p,0xFFFFFF);
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}
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#endif
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SendMessageW(GetDlgItem(hwnd,IDC_USERNAME),WM_GETTEXT,COUNTOF(wszUName),(LPARAM)wszUName);
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SendMessageW(GetDlgItem(hwnd,IDC_PASSWORD),WM_GETTEXT,COUNTOF(wszPwd),(LPARAM)wszPwd);
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//Try to find [\\]domain\user and split into username and domain strings
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WCHAR*pUName=wszUName,*pDomain=0;
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p=wszUName;
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//if (*p==p[1]=='\\')pUName=(p+=2);else \ //Should we still split things up if the string starts with \\ ? Is it possible to use \\machine\user at all?
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++p;//Don't parse "\something", require at least one char before backslash "?[*\]something"
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while(*p && *p!='\\')++p;
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if (*p=='\\') {
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pDomain=pUName;
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pUName=p+1;*p=0;
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}
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TRACEF("MyRunAs:CreateProcessWithLogonW:%ws|%ws|%ws|%ws|\n",pUName,pDomain?pDomain:L"NO?DOMAIN",wszPwd,wszExec);
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ec=(_CreateProcessWithLogonW(pUName,pDomain?pDomain:0,wszPwd,LOGON_WITH_PROFILE,0,wszExec,0,0,0,&siw,&pi)?NO_ERROR:GetLastError());
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TRACEF("MyRunAs:CreateProcessWithLogonW: ret=%u\n",ec);
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SecureZeroMemory(wszPwd,sizeof(wszPwd));//if (wszPwd) {volatile WCHAR*_p=wszPwd;for(;_p&&*_p;++_p)*_p=1;if (_p)*wszPwd=0;}//Burn password (And attempt to prevent compiler from removing it)
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if (ec && ErrorIsLogonError(ec)) {
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LPTSTR szMsg;
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DWORD ret=FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,0,ec,MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),(LPTSTR)&szMsg,0,0);
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if (ret) {
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ec=ERRAPP_TRYAGAIN;
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MessageBox(hwnd,szMsg,0,MB_ICONWARNING);
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LocalFree(szMsg);
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}
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else ec=GetLastError();
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}
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}
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}
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NSIS::MemFree(wszExec);
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if (pi.hThread)CloseHandle(pi.hThread);
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if (ERRAPP_TRYAGAIN==ec)break;
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if (ec) {
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SetLastError(ec);
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exitcode=-1;
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}
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else {
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pRADD->pSEI->hProcess=pi.hProcess;
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exitcode=IDOK;
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}
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}
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case IDCANCEL:
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EndDialog(hwnd,exitcode);
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}
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}
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break;
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}
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return FALSE;
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}
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DWORD MyRunAs(HINSTANCE hInstDll,SHELLEXECUTEINFO&sei) {
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INT_PTR ec;
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ASSERT(sei.cbSize>=sizeof(SHELLEXECUTEINFO) && hInstDll);
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if (ec=DelayLoadDlls())return ec;
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ASSERT(_CreateProcessWithLogonW && _GetUserName);
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RUNASDLGDATA radd={0};
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radd.pSEI=&sei;
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ec=DialogBoxParam(hInstDll,MAKEINTRESOURCE(IDD_MYRUNAS),sei.hwnd,MyRunAsDlgProc,(LPARAM)&radd);
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TRACEF("MyRunAs returned %d (%s|%s)\n",ec,sei.lpFile,sei.lpParameters);
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switch(ec) {
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case 0:
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return ERROR_INVALID_HANDLE;//DialogBoxParam returns 0 on bad hwnd
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case IDOK:
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return NO_ERROR;
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case IDCANCEL:
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return ERROR_CANCELLED;
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}
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//TODO:BUGBUG: on vista, the last error seems to get lost, should probably put it in RUNASDLGDATA and always return IDOK
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return GetLastError();
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}
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#ifdef BUILD_DBG
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// RunDll exports are __stdcall, we dont care about that for this debug export, rundll32.exe is able to handle this mistake
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extern "C" void __declspec(dllexport) __cdecl DBGRDMyRunAs(HWND hwnd,HINSTANCE hinst,LPTSTR lpCmdLine,int nCmdShow) {
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SHELLEXECUTEINFO sei={sizeof(sei)};
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sei.lpFile=_T("Notepad.exe");//sei.lpParameters=_T("param1");
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TRACEF("ec=%d\n",MyRunAs(GetModuleHandle(_T("UAC.dll")),sei));
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}
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#endif
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#endif /* FEAT_CUSTOMRUNASDLG */
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