oshi.driver.windows.registry.NetSessionData Maven / Gradle / Ivy
/**
* MIT License
*
* Copyright (c) 2010 - 2021 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 com.sun.jna.Pointer; // NOSONAR squid:S1191
import com.sun.jna.platform.win32.Netapi32;
import com.sun.jna.platform.win32.Netapi32.SESSION_INFO_10;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.ptr.PointerByReference;
import oshi.annotation.concurrent.ThreadSafe;
import oshi.software.os.OSSession;
/**
* Utility to read process data from HKEY_PERFORMANCE_DATA information with
* backup from Performance Counters or WMI
*/
@ThreadSafe
public final class NetSessionData {
private static final Netapi32 NET = Netapi32.INSTANCE;
private NetSessionData() {
}
public static List queryUserSessions() {
List sessions = new ArrayList<>();
PointerByReference bufptr = new PointerByReference();
IntByReference entriesread = new IntByReference();
IntByReference totalentries = new IntByReference();
if (0 == NET.NetSessionEnum(null, null, null, 10, bufptr, Netapi32.MAX_PREFERRED_LENGTH, entriesread,
totalentries, null)) {
Pointer buf = bufptr.getValue();
SESSION_INFO_10 si10 = new SESSION_INFO_10(buf);
if (entriesread.getValue() > 0) {
SESSION_INFO_10[] sessionInfo = (SESSION_INFO_10[]) si10.toArray(entriesread.getValue());
for (SESSION_INFO_10 si : sessionInfo) {
// time field is connected seconds
long logonTime = System.currentTimeMillis() - (1000L * si.sesi10_time);
sessions.add(new OSSession(si.sesi10_username, "Network session", logonTime, si.sesi10_cname));
}
}
NET.NetApiBufferFree(buf);
}
return sessions;
}
}
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