/// <summary>
/// Initializes a new instance of the <see cref="MainWindowViewModel"/> class.
/// </summary>
public MainWindowViewModel()
{
// Initialize connectionStatus in the view model
connectionStatus = new Models.ConnectionStatus
{
Status = Models.ConnectionState.Unprotected,
};
// Intialize the selected item of the server list
RefreshServerListSelectedItem(initialLoad: true);
// Get the number of user devices and current device if exists
JSONStructures.Device currentDevice = null;
if (Manager.Account.Config.FxALogin.User != null)
{
currentDevice = Manager.Account.Config.FxALogin.User.Devices.Find(d => d.PublicKey == Manager.Account.Config.FxALogin.PublicKey);
UserNumDevices = Manager.Account.Config.FxALogin.User.Devices.Count();
}
// Determine initial page to display in the ViewFrame
if (Manager.Account.LoginState == FxA.LoginState.LoggedIn && currentDevice != null)
{
InitialViewFrameSourceType = typeof(UI.MainView);
}
else
{
InitialViewFrameSourceType = typeof(UI.LinkAccountView);
}
}
/// <summary>
/// Updates the tunnel connection status and its associated UI.
/// </summary>
/// <param name="newConnectionStatus">The new tunnel connection status.</param>
public void UpdateConnectionStatus(Models.ConnectionStatus newConnectionStatus)
{
UpdateNetworkSpeedHistory(LastConnectionStatus, newConnectionStatus);
// Save connection status
LastConnectionStatus = newConnectionStatus;
// Update connection bytes received
UpdateRxUI(newConnectionStatus.RxBytes);
// Update connection bytes sent
UpdateTxUI(newConnectionStatus.TxBytes);
// Update connection handshake
UpdateLastHandshakeUI(newConnectionStatus.LastHandshakeTimeSec);
// Update connection stability
UpdateConnectionStabilityUI(newConnectionStatus.ConnectionStability);
// Update connection state
UpdateConnectionStateUI(newConnectionStatus.Status);
// Update tray
UpdateTrayUI(newConnectionStatus.Status, newConnectionStatus.ConnectionStability);
// Update network
UpdateNetworkUI(newConnectionStatus.Status, newConnectionStatus.ConnectionStability);
}
private void UpdateNetworkSpeedHistory(Models.ConnectionStatus oldConnectionStatus, Models.ConnectionStatus newConnectionStatus)
{
double.TryParse(newConnectionStatus.RxBytes, out double newRx);
double.TryParse(oldConnectionStatus.RxBytes, out double oldRx);
double.TryParse(newConnectionStatus.TxBytes, out double newTx);
double.TryParse(oldConnectionStatus.TxBytes, out double oldTx);
var curDownloadSpeed = Math.Round(Math.Max((newRx - oldRx) * 8, 0), 1);
var curUploadSpeed = Math.Round(Math.Max((newTx - oldTx) * 8, 0), 1);
Queue <double> speeds = Manager.MainWindowViewModel.DownloadSpeedHistory;
speeds.Enqueue(curDownloadSpeed);
RemoveOldData(speeds);
Manager.MainWindowViewModel.DownloadSpeedHistory = speeds;
Manager.MainWindowViewModel.DownloadSpeedHistoryString = string.Join(",", speeds);
Manager.MainWindowViewModel.IsDownloadIdle = GetIsIdle(speeds);
Tuple <string, string> lastDownloadSpeed = GetNetworkSpeedUnits(curDownloadSpeed);
Manager.MainWindowViewModel.LastDownloadSpeed = lastDownloadSpeed.Item1;
Manager.MainWindowViewModel.LastDownloadSpeedUnits = lastDownloadSpeed.Item2;
speeds = Manager.MainWindowViewModel.UploadSpeedHistory;
speeds.Enqueue(curUploadSpeed);
RemoveOldData(speeds);
Manager.MainWindowViewModel.UploadSpeedHistory = speeds;
Manager.MainWindowViewModel.UploadSpeedHistoryString = string.Join(",", speeds);
Manager.MainWindowViewModel.IsUploadIdle = GetIsIdle(speeds);
Tuple <string, string> lastUploadSpeed = GetNetworkSpeedUnits(curUploadSpeed);
Manager.MainWindowViewModel.LastUploadSpeed = lastUploadSpeed.Item1;
Manager.MainWindowViewModel.LastUploadSpeedUnits = lastUploadSpeed.Item2;
}
private Models.ConnectionStatus ParseStatusResponse(IPCMessage message)
{
var currentTime = DateTimeOffset.UtcNow.ToUnixTimeSeconds();
var connectionStatus = new Models.ConnectionStatus
{
PrivateKey = message["private_key"].FirstOrDefault(),
ListenPort = message["listen_port"].FirstOrDefault(),
PublicKey = message["public_key"].FirstOrDefault(),
PresharedKey = message["preshared_key"].FirstOrDefault(),
ProtocolVersion = message["protocol_version"].FirstOrDefault(),
Endpoint = message["endpoint"].FirstOrDefault(),
LastHandshakeTimeSec = message["last_handshake_time_sec"].FirstOrDefault(),
LastHandshakeTimeNsec = message["last_handshake_time_nsec"].FirstOrDefault(),
TxBytes = message["tx_bytes"].FirstOrDefault(),
RxBytes = message["rx_bytes"].FirstOrDefault(),
PersistenKeepaliveInterval = message["persistent_keepalive_interval"].FirstOrDefault(),
AllowedIp = string.Join(", ", message["allowed_ip"]),
ErrNo = message["errno"].FirstOrDefault(),
ConnectionStability = Models.ConnectionStability.Stable,
};
// Set new uptime
if (uptimeStart == DateTime.MinValue)
{
uptimeStart = DateTime.Now;
}
// Check whether there has been any data received in the past X seconds
long.TryParse(connectionStatus.RxBytes, out long currentTxBytes);
if (currentTxBytes - previousTxBytes != 0)
{
previousTxQueryTime = currentTime;
}
if (DateTime.Now.Subtract(uptimeStart).TotalSeconds > ProductConstants.TunnelInitialGracePeriodTimeout)
{
long.TryParse(connectionStatus.LastHandshakeTimeSec, out long lastHandshakeTime);
var connectionStability = Models.ConnectionStability.Stable;
if (currentTime - previousTxQueryTime > ProductConstants.TunnelUnstableTimeout)
{
connectionStability = Models.ConnectionStability.Unstable;
}
// Check when was the last time the handshake has been received
if (connectionStability == Models.ConnectionStability.Unstable && currentTime - lastHandshakeTime > ProductConstants.TunnelNoSignalTimeout)
{
connectionStability = Models.ConnectionStability.NoSignal;
}
connectionStatus.ConnectionStability = connectionStability;
}
previousTxBytes = currentTxBytes;
// Mark connection as protected, because the named pipe to WireGuard is up
connectionStatus.Status = Models.ConnectionState.Protected;
return(connectionStatus);
}
/// <summary>
/// Retrieves the current connection status of the Tunnel.
/// </summary>
public void RequestConnectionStatus()
{
// Do tunnel service checks
if (Service.IsTunnelServiceRunning())
{
// Service is now running, clear transitioning states and query statistics
ClearConnectionTransitionState();
// Sends the connection statistics request to the broker
if (!QueryConnectionStatisticsFromBroker())
{
Manager.ConnectionStatusUpdater.RequestConnectionStatusTcs.TrySetResult(true);
var newConnectionStatus = new Models.ConnectionStatus()
{
Status = Models.ConnectionState.Protected, ConnectionStability = Models.ConnectionStability.NoSignal
};
Manager.ConnectionStatusUpdater.UpdateConnectionStatus(newConnectionStatus);
}
return;
}
// Service is not running, mark the request connection status task to be complete
Manager.ConnectionStatusUpdater.RequestConnectionStatusTcs.SetResult(true);
if (!Service.IsTunnelServiceRunning() && IsDisconnecting)
{
// Service is not running, we should clear the connection transition state as the disconnection is now complete
ClearConnectionTransitionState();
}
// Broker process is running, but the tunnel service is not running
if (IsConnecting == false)
{
// We are not in a connecting state, meaning if the tunnel service is down, the user is unprotected
Manager.ConnectionStatusUpdater.UpdateConnectionStatus(new Models.ConnectionStatus()
{
Status = Models.ConnectionState.Unprotected
});
return;
}
else if (IsConnecting == true)
{
// We are currently only connecting
Manager.ConnectionStatusUpdater.UpdateConnectionStatus(new Models.ConnectionStatus()
{
Status = Models.ConnectionState.Connecting
});
return;
}
else if (IsDisconnecting == true)
{
// We are currently only disconnecting
Manager.ConnectionStatusUpdater.UpdateConnectionStatus(new Models.ConnectionStatus()
{
Status = Models.ConnectionState.Disconnecting
});
return;
}
// No previous checks apply, the user is unprotected
Manager.ConnectionStatusUpdater.UpdateConnectionStatus(new Models.ConnectionStatus()
{
Status = Models.ConnectionState.Unprotected
});
}