#region License Information
/* HeuristicLab
* Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
*
* This file is part of HeuristicLab.
*
* HeuristicLab is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeuristicLab is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with HeuristicLab. If not, see .
*/
#endregion
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Security.Principal;
using System.ServiceProcess;
using System.Windows.Forms;
using HeuristicLab.Clients.Hive.SlaveCore.Views.Properties;
using HeuristicLab.Common;
using HeuristicLab.MainForm;
namespace HeuristicLab.Clients.Hive.SlaveCore.Views {
[View("HeuristicLab Slave Cmds with Kill View")]
[Content(typeof(SlaveItem), IsDefaultView = false)]
public partial class SlaveCmdsWithKill : SlaveCmdsBase {
private string serviceName = Settings.Default.ServiceName;
private const UInt32 BCM_SETSHIELD = 0x160C;
[DllImport("user32", CharSet = CharSet.Auto, SetLastError = true)]
static extern int SendMessage(IntPtr hWnd, UInt32 Msg, int wParam, IntPtr lParam);
public new SlaveItem Content {
get { return (SlaveItem)base.Content; }
set {
if (base.Content != value) {
base.Content = value;
}
}
}
public SlaveCmdsWithKill() {
InitializeComponent();
if (CheckRunAsAdmin()) {
btnKill.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft;
btnKill.Image = HeuristicLab.Common.Resources.VSImageLibrary.Stop;
} else {
this.btnKill.FlatStyle = FlatStyle.System;
SendMessage(btnKill.Handle, BCM_SETSHIELD, 0, (IntPtr)1);
}
}
#region Register Content Events
protected override void DeregisterContentEvents() {
base.DeregisterContentEvents();
}
protected override void RegisterContentEvents() {
base.RegisterContentEvents();
}
#endregion
protected override void Content_SlaveDisplayStateChanged(object sender, EventArgs e) {
base.Content_SlaveDisplayStateChanged(sender, e);
if (e.Value == SlaveDisplayStat.Asleep || e.Value == SlaveDisplayStat.NoService) {
btnKill.Enabled = false;
}
if (e.Value == SlaveDisplayStat.Busy || e.Value == SlaveDisplayStat.Idle || e.Value == SlaveDisplayStat.Offline) {
btnKill.Enabled = true;
}
}
protected override void Content_CoreConnectionChanged(object sender, EventArgs e) {
base.Content_CoreConnectionChanged(sender, e);
if (e.Value == CoreConnection.Offline) {
btnKill.Enabled = false;
}
}
private bool CheckRunAsAdmin() {
bool isRunAsAdmin = false;
WindowsIdentity user = WindowsIdentity.GetCurrent();
WindowsPrincipal principal = new WindowsPrincipal(user);
try {
isRunAsAdmin = principal.IsInRole(WindowsBuiltInRole.Administrator);
}
catch { }
return isRunAsAdmin;
}
///
/// Shows the windows UAC dialog and restarts tray icon app
///
private void ElevateApplication() {
// launch itself as administrator
ProcessStartInfo proc = new ProcessStartInfo(Application.ExecutablePath, Settings.Default.ShowUICmd);
proc.UseShellExecute = true;
proc.WorkingDirectory = Environment.CurrentDirectory;
proc.FileName = Application.ExecutablePath;
proc.Verb = "runas";
try {
Process.Start(proc);
}
catch {
// user refused to allow privileges elevation
return;
}
Application.Exit();
}
private void StartService() {
ServiceController service = new ServiceController(serviceName);
try {
if (service.Status == ServiceControllerStatus.Running) {
service.Stop();
service.WaitForStatus(ServiceControllerStatus.Stopped, Settings.Default.ServiceStartStopTimeout);
}
service.Start();
service.WaitForStatus(ServiceControllerStatus.Running, Settings.Default.ServiceStartStopTimeout);
}
catch (InvalidOperationException ex) {
MessageBox.Show("Error starting service: Hive Slave Service not found!" + Environment.NewLine + ex.ToString());
}
catch (Exception ex) {
MessageBox.Show("Error starting service, exception is: " + Environment.NewLine + ex.ToString());
}
}
private void StopService() {
ServiceController service = new ServiceController(serviceName);
try {
if (service.Status == ServiceControllerStatus.Running) {
service.Stop();
service.WaitForStatus(ServiceControllerStatus.Stopped, Settings.Default.ServiceStartStopTimeout);
}
}
catch (InvalidOperationException ex) {
MessageBox.Show("Error stopping service: Hive Slave Service not found!" + Environment.NewLine + ex.ToString());
}
catch (Exception ex) {
MessageBox.Show("Error stopping service, exception is: " + Environment.NewLine + ex.ToString());
}
}
protected override void OnContentChanged() {
base.OnContentChanged();
btnKill.Enabled = false;
}
protected override void SetEnabledStateOfControls() {
base.SetEnabledStateOfControls();
}
private void btnKill_Click(object sender, EventArgs e) {
if (CheckRunAsAdmin()) {
StopService();
} else {
ElevateApplication();
}
}
protected override void btnStart_Click(object sender, EventArgs e) {
if (Content != null) {
if (lastSlaveDisplayStat == SlaveDisplayStat.Asleep) {
Content.RestartCore();
} else if (lastSlaveDisplayStat == SlaveDisplayStat.NoService) {
if (CheckRunAsAdmin()) {
StartService();
} else {
ElevateApplication();
}
}
}
}
}
}