C:/Data/Projects/MCS EPM Global Practice/Frameworks/Public/mpfX/1.0/Tools/Browser/Window.cs

using System;
using System.Diagnostics;
using System.Security.Principal;
using System.Threading;
using System.Web.Services.Protocols;
using System.Windows;
using System.Windows.Forms;
using System.Windows.Input;
using CodePlex.MicrosoftProject.mpFx;
using CodePlex.MicrosoftProject.mpFx.ProjectsWebService;
using Mcs.Epm.MpFx.Browser.Controls;
using Mcs.Epm.MpFx.Browser.Controls.Login;
using Microsoft.MCS.Projects.MopsBrowser;
using Cursors = System.Windows.Input.Cursors;
using MessageBoxOptions = System.Windows.MessageBoxOptions;

namespace Mcs.Epm.MpFx.Browser
{
    public partial class Window
    {
        private delegate void LoginDelegate();

        private ProjectServer _ProjectServer;
        private WindowsIdentity _Identity;
        private IntPtr _UserToken;
        private WindowsImpersonationContext _ImpersonationContext;

        public Window()
        {
            InitializeComponent();

            Splash splash = new Splash();

            splash.BuildOnComplete += splash_BuildOnComplete;

            MainContentControl.Content = splash;


            WindowState = WindowState.Maximized;
            tabControl.Width = ActualWidth;
        }

        void splash_BuildOnComplete()
        {
            //Thread.Sleep(1500);
            LoadLoginControl();
        }

        private void Window_MouseDown(object sender, MouseButtonEventArgs e)
        {
            if (e.LeftButton == MouseButtonState.Pressed)
            {
                DragMove();
            }
        }

        private void LoginButton_OnClick(object sender, RoutedEventArgs e)
        {
            LoadLoginControl();
        }

        private void LoadLoginControl()
        {
            LoginControl loginControl = new LoginControl();

            loginControl.OnCancelButtonClick += loginControl_OnCancelButtonClick;
            loginControl.OnLoginButtonClick += loginControl_OnLoginButtonClick;

            MainContentControl.Content = loginControl;
        }

        void loginControl_OnLoginButtonClick(object sender, EventArgs e)
        {
            if (IsLoginCredentialsValid())
            {
                SaveLoginSettings();
                Dispatcher.Invoke(new LoginDelegate(Login));
            }
        }

        private void Login()
        {
            LoginControl loginControl = (LoginControl)MainContentControl.Content;

            if (_ProjectServer != null)
            {
                _ProjectServer.Dispose();
            }

            if (!loginControl.UseDefaultCredentials)
            {
                int index = loginControl.Profile.UserName.IndexOf('\\');

                string domain;
                string userName;

                if (index == -1)
                {
                    domain = "."; // See http://msdn.microsoft.com/en-us/library/aa378184.aspx

                    userName = loginControl.Profile.UserName;
                }
                else
                {
                    domain = loginControl.Profile.UserName.Substring(0, index);
                    userName = loginControl.Profile.UserName.Substring(index + 1);
                }

                if (Win32Impersonation.LogonUser(userName, domain, loginControl.Profile.Password, Win32Impersonation.LogonSessionType.NewCredentials, out _UserToken))
                {
                    _Identity = new WindowsIdentity(_UserToken);
                    _ImpersonationContext = _Identity.Impersonate();
                }
                else
                {
                    Debug.Print(Win32Impersonation.GetLastError().ToString());

                    Global.ShowMessageBox(this,
                                          "loginFailed",
                                          MessageBoxButton.OK,
                                          MessageBoxImage.Error,
                                          MessageBoxOptions.None);

                    Cursor = Cursors.Arrow;
                    return;
                }
            }

            try
            {
                _ProjectServer = new ProjectServer(loginControl.Profile.Url,
                                                   DataStoreEnum.WorkingStore, null);

            }
            catch (SoapException exception)
            {

            }
            catch (MpFxException exception)
            {

            }
            catch (Exception exception)
            {

            }
        }

        private void SaveLoginSettings()
        {
            LoginControl loginControl = (LoginControl)MainContentControl.Content;
            Settings.Default.pwaUrl = loginControl.Profile.Url;
            Settings.Default.userName = loginControl.Profile.UserName;
            Settings.Default.LastProfileName = loginControl.Profile.Name;
            Settings.Default.Save();
        }

        private bool IsLoginCredentialsValid()
        {
            LoginControl loginControl = (LoginControl)MainContentControl.Content;

            if (loginControl != null)
            {
                if (string.IsNullOrEmpty(loginControl.Profile.Url))
                {
                    Global.ShowMessageBox(this,
                                          "missingPwaUrl",
                                          MessageBoxButton.OK,
                                          MessageBoxImage.Information,
                                          MessageBoxOptions.None);

                    return false;
                }
                
                bool useDefualtCredentials = (bool) loginControl.useDefaultCredentialsCheckBox.IsChecked;

                if (!useDefualtCredentials && string.IsNullOrEmpty(loginControl.Profile.UserName))
                {
                    Global.ShowMessageBox(this,
                                          "missingUserName",
                                          MessageBoxButton.OK,
                                          MessageBoxImage.Information,
                                          MessageBoxOptions.None);

                    return false;
                }

                if (!useDefualtCredentials && string.IsNullOrEmpty(loginControl.Profile.Password))
                {
                    Global.ShowMessageBox(this,
                                          "missingPassword",
                                          MessageBoxButton.OK,
                                          MessageBoxImage.Information,
                                          MessageBoxOptions.None);

                    return false;
                }

                return true;
            }

            return false;
        }

        void loginControl_OnCancelButtonClick(object sender, EventArgs e)
        {
            MainContentControl.Content = null;
        }

        private void CloseButton_OnClick(object sender, RoutedEventArgs e)
        {
            Close();
        }

        private void Window_OnSizeChanged(object sender, SizeChangedEventArgs e)
        {
            tabControl.Width = ActualWidth;
        }

        private void Window_OnStateChanged(object sender, EventArgs e)
        {
            tabControl.Width = ActualWidth;
        }

        private void CleanUp()
        {
            if (_ProjectServer != null)
            {
                _ProjectServer.Dispose();
                _ProjectServer = null;
            }

            UndoImpersonation();
        }

        private void UndoImpersonation()
        {
            if (_ImpersonationContext != null)
            {
                _ImpersonationContext.Undo();
                _ImpersonationContext.Dispose();
            }

            if (_Identity != null)
            {
                _Identity.Dispose();
            }

            if (_UserToken != IntPtr.Zero)
            {
                Win32Impersonation.CloseHandle(_UserToken);
            }
        }
    }
}

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