public BeamgunViewModel()
{
var dictionary = new RegistryBackedDictionary();
var beamgunSettings = new BeamgunSettings(dictionary);
BeamgunState = new BeamgunState(beamgunSettings)
{
MainWindowVisibility = Visibility.Hidden
};
// TODO: This bi-directional relationship feels bad.
dictionary.BadCastReport += BeamgunState.AppendToAlert;
BeamgunState.Disabler = new Disabler(BeamgunState);
BeamgunState.Disabler.Enable();
DisableCommand = new DisableCommand(this, beamgunSettings);
TrayIconCommand = new TrayIconCommand(this);
LoseFocusCommand = new DeactivatedCommand(this);
ResetCommand = new ResetCommand(this);
ExitCommand = new ExitCommand(this);
ClearAlertsCommand = new ClearAlertsCommand(this);
_keystrokeHooker = InstallKeystrokeHooker();
_usbStorageGuard = InstallUsbStorageGuard(beamgunSettings);
_alarm = InstallAlarm(beamgunSettings);
_networkWatcher = new NetworkWatcher(beamgunSettings,
new NetworkAdapterDisabler(),
x => BeamgunState.AppendToAlert(x),
x =>
{
_alarm.Trigger(x);
BeamgunState.SetGraphicsLanAlert();
},
() => BeamgunState.Disabler.IsDisabled);
_keyboardWatcher = new KeyboardWatcher(beamgunSettings,
new WorkstationLocker(),
x => BeamgunState.AppendToAlert(x),
x =>
{
_alarm.Trigger(x);
BeamgunState.SetGraphicsKeyboardAlert();
},
() => BeamgunState.Disabler.IsDisabled);
_mouseWatcher = new MouseWatcher(beamgunSettings,
new WorkstationLocker(),
x => BeamgunState.AppendToAlert(x),
x =>
{
_alarm.Trigger(x);
BeamgunState.SetGraphicsMouseAlert();
},
() => BeamgunState.Disabler.IsDisabled);
var checker = new VersionChecker();
_updateTimer = new VersionCheckerTimer(beamgunSettings,
checker,
x => BeamgunState.AppendToAlert(x));
}
private UsbStorageGuard InstallUsbStorageGuard(IBeamgunSettings beamgunSettings)
{
var usbGuard = new UsbStorageGuard(beamgunSettings);
BeamgunState.UsbMassStorageDisabled = usbGuard.UsbStorageDisabled;
BeamgunState.PropertyChanged += (sender, args) =>
{
if (args.PropertyName != nameof(BeamgunState.UsbMassStorageDisabled))
{
return;
}
if (!beamgunSettings.IsAdmin)
{
BeamgunState.AppendToAlert("Cannot change USB Mass Storage settings without administrative privileges.");
}
try
{
usbGuard.UsbStorageDisabled = BeamgunState.UsbMassStorageDisabled;
}
catch (PrivilegeNotHeldException e)
{
BeamgunState.AppendToAlert($"Privileges exception: {e.Message}");
}
};
return(usbGuard);
}
public void Reset()
{
BeamgunState.AppendToAlert("Resetting alarm.");
BeamgunState.Disabler.Enable();
_alarm.Reset();
_networkWatcher.Triggered = false;
}
public void Reset()
{
BeamgunState.AppendToAlert("Resetting alarm.");
BeamgunState.Disabler.Enable();
BeamgunState.KeyLog = $"Reset at {DateTime.Now.ToShortDateString()} {DateTime.Now.ToShortTimeString()}\n";
_alarm.Reset();
}
public void Trigger(string message)
{
if (_triggered)
{
return;
}
_beamgunState.AppendToAlert(message);
_triggered = true;
var triggerThread = new Thread(() =>
{
while (_triggered)
{
AlarmCallback?.Invoke();
Thread.Sleep(_repeatInterval);
}
});
triggerThread.Start();
}
public void Reset()
{
BeamgunState.AppendToAlert("Resetting alarm.");
BeamgunState.Disabler.Enable();
_alarm.Reset();
}
public void ClearAlerts()
{
BeamgunState.AlertLog = "";
BeamgunState.AppendToAlert("Log cleared.");
}
public BeamgunViewModel(Window mainWindow)
{
BeamgunState = new BeamgunState
{
MainWindowVisibility = Visibility.Hidden
};
BeamgunState.Disabler = new Disabler(BeamgunState);
BeamgunState.Disabler.Enable();
DisableCommand = new DisableCommand(this);
TrayIconCommand = new TrayIconCommand(this);
LoseFocusCommand = new DeactivatedCommand(this);
ResetCommand = new ResetCommand(this);
ExitCommand = new ExitCommand(this);
_workstationLocker = new WorkstationLocker();
const uint repeatInterval = 10;
var converter = new KeyConverter();
_keystrokeHooker = new KeystrokeHooker();
_alarm = new Alarm(repeatInterval, BeamgunState);
_alarm.AlarmCallback += () =>
{
BeamgunState.MainWindowState = WindowState.Normal;
BeamgunState.MainWindowVisibility = Visibility.Visible;
BeamgunState.SetGraphicsAlert();
if (BeamgunState.StealFocus)
{
StealFocus();
}
};
var windowHandle = new WindowInteropHelper(mainWindow).Handle;
_usbMonitor = new UsbMonitor(windowHandle);
_usbMonitor.DeviceAdded += () =>
{
BeamgunState.AppendToAlert("USB device inserted.");
_alarm.Trigger("Alerting on USB device insertion.");
if (!BeamgunState.LockWorkStation)
{
return;
}
var result = _workstationLocker.Lock();
var message = result ? "Successfully locked the workstation." : "Could not lock the workstation.";
BeamgunState.AppendToAlert(message);
};
_usbMonitor.DeviceRemoved += () =>
{
BeamgunState.AppendToAlert("USB device removed.");
};
_keystrokeHooker.Callback += key =>
{
if (!_alarm.Triggered)
{
return;
}
BeamgunState.AppendToKeyLog(converter.Convert(key));
};
}
