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/**
* MIT License
*
* Copyright (c) 2010 - 2020 The OSHI Project Contributors: https://github.com/oshi/oshi/graphs/contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package oshi.driver.windows.registry;
import java.util.ArrayList;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.sun.jna.platform.win32.Advapi32Util.Account; // NOSONAR squid:S1191
import com.sun.jna.platform.win32.Advapi32Util.InfoKey;
import com.sun.jna.platform.win32.Advapi32Util;
import com.sun.jna.platform.win32.Win32Exception;
import com.sun.jna.platform.win32.WinNT;
import com.sun.jna.platform.win32.WinReg;
import com.sun.jna.platform.win32.WinReg.HKEY;
import oshi.annotation.concurrent.ThreadSafe;
import oshi.software.os.OSSession;
/**
* Utility to read session data from HKEY_USERS
*/
@ThreadSafe
public final class HkeyUserData {
private static final String DEFAULT_DEVICE = "Console";
private static final String VOLATILE_ENV_SUBKEY = "Volatile Environment";
private static final String CLIENTNAME = "CLIENTNAME";
private static final String SESSIONNAME = "SESSIONNAME";
private static final Logger LOG = LoggerFactory.getLogger(HkeyUserData.class);
private HkeyUserData() {
}
public static List queryUserSessions() {
List sessions = new ArrayList<>();
for (String sidKey : Advapi32Util.registryGetKeys(WinReg.HKEY_USERS)) {
if (!sidKey.startsWith(".") && !sidKey.endsWith("_Classes")) {
try {
Account a = Advapi32Util.getAccountBySid(sidKey);
String name = a.name;
String device = DEFAULT_DEVICE;
String host = a.domain; // temporary default
long loginTime = 0;
String keyPath = sidKey + "\\" + VOLATILE_ENV_SUBKEY;
if (Advapi32Util.registryKeyExists(WinReg.HKEY_USERS, keyPath)) {
HKEY hKey = Advapi32Util.registryGetKey(WinReg.HKEY_USERS, keyPath, WinNT.KEY_READ).getValue();
// InfoKey write time is user login time
InfoKey info = Advapi32Util.registryQueryInfoKey(hKey, 0);
loginTime = info.lpftLastWriteTime.toTime();
for (String subKey : Advapi32Util.registryGetKeys(hKey)) {
String subKeyPath = keyPath + "\\" + subKey;
// Check for session and client name
if (Advapi32Util.registryValueExists(WinReg.HKEY_USERS, subKeyPath, SESSIONNAME)) {
String session = Advapi32Util.registryGetStringValue(WinReg.HKEY_USERS, subKeyPath,
SESSIONNAME);
if (!session.isEmpty()) {
device = session;
}
}
if (Advapi32Util.registryValueExists(WinReg.HKEY_USERS, subKeyPath, CLIENTNAME)) {
String client = Advapi32Util.registryGetStringValue(WinReg.HKEY_USERS, subKeyPath,
CLIENTNAME);
if (!client.isEmpty() && !DEFAULT_DEVICE.equals(client)) {
host = client;
}
}
}
Advapi32Util.registryCloseKey(hKey);
}
sessions.add(new OSSession(name, device, loginTime, host));
} catch (Win32Exception ex) {
LOG.warn("Error querying SID {} from registry: {}", sidKey, ex.getMessage());
}
}
}
return sessions;
}
}
