/// <summary>
/// Used when editing an existing station
/// </summary>
/// <param name="main"></param>
/// <param name="station">The station to edit</param>
public EditStationWindow(MainWindow main, IStation station)
{
InitializeComponent();
mainWindow = main;
stationToEdit = station;
PopulateElements();
}
private void StationList_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
if (sender is ListView view)
{
if (view.SelectedIndex > stationManager.stations.list.Count || view.SelectedIndex == -1)
{
return;
}
IStation station = stationManager.stations.list[view.SelectedIndex];
selectedStation = station;
SetSelectedStationStatus();
if (station.Status != "Available")
{
JoinSession_MenuItem.IsEnabled = true;
TakeOver_MenuItem.IsEnabled = true;
}
else
{
JoinSession_MenuItem.IsEnabled = false;
TakeOver_MenuItem.IsEnabled = false;
}
}
}
public void SetStationStatus(IStation station, string status)
{
station.Status = status;
stationManager.SaveLocalStationList();
UpdateStationStatusListUI();
if (selectedStation != null)
{
StationList.SelectedItem = StationList.Items.IndexOf(station);
}
}
/// <summary>
/// Updates the station information based on its return status.
/// </summary>
/// <param name="station">Which station to check</param>
/// <param name="mainWindow">Referens to the MainWindow</param>
public static void UpdateStationStatus(IStation station, MainWindow mainWindow)
{
// Get the return status
string status = StationOccupied(station).ToString();
// Set the station status for station in list
mainWindow.SetStationStatus(station, status);
// Set the station status for selected station box
mainWindow.SetSelectedStationStatus();
}
/// <summary>
/// Attempts to add a new station to the list. Returns FALSE if station with given name alread exists.
/// </summary>
/// <param name="station"></param>
/// <returns></returns>
public bool AddStationToList(IStation station)
{
LoadLocalStationList();
foreach (IStation s in stations.list)
{
if (s.Name == station.Name)
{
return(false);
}
}
stations.list.Add(station);
SaveLocalStationList();
return(true);
}
private void Disconnected(IStation station)
{
if (connectedStation == null)
{
return;
}
//Console.WriteLine($"User: {Settings.data.user} disconnected from station: {station.Name}");
stationManager.stations.list.Find(s => s.Name == station.Name).Status = "Available";
connectedStation = null;
UpdateStationStatusListUI();
stationManager.SaveLocalStationList();
}
private void StationList_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (sender is ListView view)
{
if (view.SelectedIndex > stationManager.stations.list.Count || view.SelectedIndex == -1)
{
return;
}
IStation station = stationManager.stations.list[view.SelectedIndex];
selectedStation = station;
SetSelectedStationStatus();
}
}
private void ConnectToStation(IStation station, bool takeover)
{
if (station == null)
{
return;
}
// Reload Station information
stationManager.LoadLocalStationList();
Command.UpdateStationStatus(station, this);
// Update UIs
UpdateStationStatusListUI();
SetSelectedStationStatus();
if (station.Status == "Occupied" && !takeover)
{
MessageBox.Show("This station is currently occupied by another user.\nRight-Click allows sesison join/take over", "Session Occupied");
return;
}
string process = "";
process += " /v:" + station.Ip;
Process RemoteConnectProcess = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = "mstsc.exe",
Arguments = process,
CreateNoWindow = true,
WindowStyle = ProcessWindowStyle.Maximized,
RedirectStandardOutput = true,
UseShellExecute = false
}
};
RemoteConnectProcess.Start();
RemoteConnectProcess.WaitForInputIdle();
Connected(station);
var outputResultPromise = RemoteConnectProcess.StandardOutput.ReadToEndAsync();
outputResultPromise.ContinueWith(o => Disconnected(station));
}
protected override void OnPreviewKeyUp(KeyEventArgs e)
{
base.OnPreviewKeyDown(e);
if (StationList.SelectedItem == null || !IsActive)
{
return;
}
if (e.Key == Key.Down || e.Key == Key.Up)
{
IStation selected = StationList.SelectedItem as IStation;
if (selected != null)
{
selectedStation = selected;
SetSelectedStationStatus();
}
}
}
/// <summary>
/// Checks status of station based on output from the command quser
/// </summary>
/// <param name="station"></param>
/// <returns></returns>
private static ReturnStatus StationOccupied(IStation station)
{
IntPtr val = IntPtr.Zero;
Wow64DisableWow64FsRedirection(ref val);
// Setup quser-process info
Process proc = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = "cmd.exe",
Arguments = "/c quser /server:" + station.Ip,
UseShellExecute = false,
RedirectStandardOutput = true,
CreateNoWindow = true,
}
};
List <string> lines = new List <string>();
//Start the process
proc.Start();
ReturnStatus status = ReturnStatus.Unknown;
station.SessionID = string.Empty;
// Listen for all output by process
while (!proc.StandardOutput.EndOfStream)
{
// Read every line that is output, this waits until new line is available.
string line = proc.StandardOutput.ReadLine();
if (line != null)
{
lines.Add(line.ToLower());
}
// If lines contains more than 1, users listed on station.
if (lines.Count > 1)
{
// Split all lines between spaces
List <string> connectionDetails = new List <string>();
connectionDetails.AddRange(lines[1].Split(' '));
connectionDetails = connectionDetails.Where(s => !string.IsNullOrWhiteSpace(s)).ToList();
// Found what we wanted from the process, it can be disposed
proc.Dispose();
Wow64EnableWow64FsRedirection(ref val);
// If one of the split strings contains 'active', then there is an active connection.
if (connectionDetails.Count > 3 && connectionDetails[3] == "active")
{
// ConnectionDetails[2] contains the RDP-ID for the active session,
// needed if we want to join this session.
station.SessionID = connectionDetails[2];
//connectione exists and is occupied
status = ReturnStatus.Occupied;
break;
}
//connection exists and is available, no ID is joinable.
status = ReturnStatus.Available;
break;
}
}
proc.Dispose();
Wow64EnableWow64FsRedirection(ref val);
return(status);
}
private void Connected(IStation station)
{
connectedStation = station;
UpdateStationStatusListUI();
stationManager.SaveLocalStationList();
}
public void OpenStationManager(IStation station)
{
EditStationWindow popup = new EditStationWindow(this, station);
popup.ShowDialog();
}
/// <summary>
/// Saves the information provided to the station list
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Click_SaveStation(object sender, RoutedEventArgs e)
{
// Used to store multiple 'errors'
string errorMsg = string.Empty;
// If no station name has been assigned to the StationNameTextbox
if (string.IsNullOrEmpty(StationName.Text))
{
errorMsg += "Station needs a name!.";
}
// If no station Ip has been assigned to the StationIpTextbox
if (string.IsNullOrEmpty(StationIp.Text))
{
errorMsg += "\nStation needs an IP-Adress.";
}
// If any errors exist, display them with a MessageBox
if (!string.IsNullOrEmpty(errorMsg))
{
MessageBox.Show(errorMsg, "Invalid Station Settings!", MessageBoxButton.OK);
return;
}
// Type does not have to be specified, default to 'Unspecified' if none has been provided.
if (string.IsNullOrEmpty(StationType.Text))
{
StationType.Text = "Unspecified";
}
// StationToEdit is null if we want to CREATE a new station
if (stationToEdit == null)
{
// Create the new station with relevant information
IStation newStation = new IStation()
{
Name = StationName.Text,
Type = StationType.Text,
Ip = StationIp.Text,
Group = (StationGroup)GroupBox.SelectedIndex
};
// Double check that no station with said name exists already.
if (!mainWindow.stationManager.AddStationToList(newStation))
{
MessageBox.Show("Station with that name already exists!\n Edit existing station or use another name.", "Station already exists!", MessageBoxButton.OK);
return;
}
}
// StationToEdit is NOT null if we want to EDIT an exisiting station
else
{
//Update existing station with relevant information.
stationToEdit.Name = StationName.Text;
stationToEdit.Type = StationType.Text;
stationToEdit.Ip = StationIp.Text;
stationToEdit.Group = (StationGroup)GroupBox.SelectedIndex;
stationToEdit = null;
}
// Save the station list after adding/editing and close this window.
mainWindow.stationManager.SaveLocalStationList();
CloseWindow();
}