1 /*
2 * MIT License
3 *
4 * Copyright (c) 2010-2024 The Waffle Project Contributors: https://github.com/Waffle/waffle/graphs/contributors
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24 package waffle.windows.auth.impl;
25
26 import com.sun.jna.platform.win32.Advapi32;
27 import com.sun.jna.platform.win32.Kernel32;
28 import com.sun.jna.platform.win32.Win32Exception;
29 import com.sun.jna.platform.win32.WinNT.HANDLE;
30
31 import waffle.windows.auth.IWindowsImpersonationContext;
32
33 /**
34 * The Class WindowsIdentityImpersonationContextImpl.
35 */
36 public class WindowsIdentityImpersonationContextImpl implements IWindowsImpersonationContext {
37
38 /**
39 * Impersonate a logged on user.
40 *
41 * @param windowsIdentity
42 * Windows identity obtained via LogonUser.
43 */
44 public WindowsIdentityImpersonationContextImpl(final HANDLE windowsIdentity) {
45 if (!Advapi32.INSTANCE.ImpersonateLoggedOnUser(windowsIdentity)) {
46 throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
47 }
48 }
49
50 @Override
51 public void revertToSelf() {
52 Advapi32.INSTANCE.RevertToSelf();
53 }
54 }