Exemplo n.º 1
0
    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;
        }
    }
Exemplo n.º 2
0
    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);
    }