1 /**
2 * Waffle (https://github.com/dblock/waffle)
3 *
4 * Copyright (c) 2010 - 2015 Application Security, Inc.
5 *
6 * All rights reserved. This program and the accompanying materials
7 * are made available under the terms of the Eclipse Public License v1.0
8 * which accompanies this distribution, and is available at
9 * http://www.eclipse.org/legal/epl-v10.html
10 *
11 * Contributors:
12 * Application Security, Inc.
13 */
14 package waffle.windows.auth.impl;
15
16 import com.sun.jna.platform.win32.Advapi32;
17 import com.sun.jna.platform.win32.Kernel32;
18 import com.sun.jna.platform.win32.Win32Exception;
19 import com.sun.jna.platform.win32.WinNT.HANDLE;
20
21 import waffle.windows.auth.IWindowsImpersonationContext;
22
23 /**
24 * The Class WindowsIdentityImpersonationContextImpl.
25 *
26 * @author dblock[at]dblock[dot]org
27 */
28 public class WindowsIdentityImpersonationContextImpl implements IWindowsImpersonationContext {
29
30 /**
31 * Impersonate a logged on user.
32 *
33 * @param windowsIdentity
34 * Windows identity obtained via LogonUser.
35 */
36 public WindowsIdentityImpersonationContextImpl(final HANDLE windowsIdentity) {
37 if (!Advapi32.INSTANCE.ImpersonateLoggedOnUser(windowsIdentity)) {
38 throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
39 }
40 }
41
42 /* (non-Javadoc)
43 * @see waffle.windows.auth.IWindowsImpersonationContext#revertToSelf()
44 */
45 @Override
46 public void revertToSelf() {
47 Advapi32.INSTANCE.RevertToSelf();
48 }
49 }