public WindowsImpersonationContext ImpersonateValidUserAndSetThreadPrincipal(string userName, string domain, string password)
{
WindowsImpersonationContext impersonationContext = null;
WindowsIdentity tempWindowsIdentity;
var token = IntPtr.Zero;
var tokenDuplicate = IntPtr.Zero;
IIdentity user;
WindowsPrincipal principal;
try
{
if (Convert.ToBoolean(RevertToSelf()))
{
if (Impersonate.LogonUserA(userName, domain, password, (int)eLogonType.LOGON32_LOGON_INTERACTIVE, (int)eLogonProvider.LOGON32_PROVIDER_DEFAULT, ref token) != 0)
{
if (DuplicateToken(token, 2, ref tokenDuplicate) != 0)
{
tempWindowsIdentity = new WindowsIdentity(tokenDuplicate);
impersonationContext = tempWindowsIdentity.Impersonate();
// apply impersonation to threading
user = new WindowsIdentity(token, "NTLM", WindowsAccountType.Normal, true);
principal = new WindowsPrincipal((WindowsIdentity)user);
Thread.CurrentPrincipal = principal;
}
}
}
return(impersonationContext);
}
catch (Exception ex)
{
throw ex;
}
finally
{
if (!tokenDuplicate.Equals(IntPtr.Zero))
{
CloseHandle(tokenDuplicate);
}
if (!token.Equals(IntPtr.Zero))
{
CloseHandle(token);
}
//return impersonationContext;
}
}
public bool impersonateValidUser(string userName, string domain, string password)
{
bool impersonateValidUserRet = false;
WindowsIdentity tempWindowsIdentity;
var token = IntPtr.Zero;
var tokenDuplicate = IntPtr.Zero;
impersonateValidUserRet = false;
if (Convert.ToBoolean(RevertToSelf()))
{
if (Impersonate.LogonUserA(userName, domain, password, (int)eLogonType.LOGON32_LOGON_NETWORK, (int)eLogonProvider.LOGON32_PROVIDER_DEFAULT, ref token) != 0)
{
if (DuplicateToken(token, (int)eImpersonationLevel.SecurityImpersonation, ref tokenDuplicate) != 0)
{
tempWindowsIdentity = new WindowsIdentity(tokenDuplicate);
impersonationContext = tempWindowsIdentity.Impersonate();
if (impersonationContext is object)
{
impersonateValidUserRet = true;
}
}
}
}
if (!tokenDuplicate.Equals(IntPtr.Zero))
{
CloseHandle(tokenDuplicate);
}
if (!token.Equals(IntPtr.Zero))
{
CloseHandle(token);
}
return(impersonateValidUserRet);
}
