void BleConnectionManager_AdvertismentReceived(object sender, AdvertismentReceivedEventArgs e)
{
lock (_lock)
{
RemoveTimedOutRecords();
var shortMac = BleUtils.ConnectionIdToMac(e.Id);
if (_ignoreList.Any(m => m == shortMac))
{
var proximity = BleUtils.RssiToProximity(e.Rssi);
if (proximity > _workstationSettingsManager.Settings.LockProximity)
{
_lastAdvRecTime[shortMac] = DateTime.UtcNow;
}
}
}
}
async Task ConnectByProximity(AdvertismentReceivedEventArgs adv)
{
if (!isRunning)
{
return;
}
if (adv == null)
{
return;
}
if (_isConnecting == 1)
{
return;
}
if (_macListToConnect.Count == 0)
{
return;
}
var mac = BleUtils.ConnectionIdToMac(adv.Id);
if (!_macListToConnect.Any(m => m == mac))
{
return;
}
var proximity = BleUtils.RssiToProximity(adv.Rssi);
var settings = _workstationSettingsManager.Settings;
if (proximity < settings.UnlockProximity)
{
return;
}
if (_advIgnoreListMonitor.IsIgnored(mac))
{
return;
}
if (!_hesAccessManager.HasAccessKey())
{
return;
}
if (Interlocked.CompareExchange(ref _isConnecting, 1, 0) == 0)
{
try
{
var device = _bleDeviceManager.Devices.FirstOrDefault(d => d.Mac == mac && !d.IsRemote && !d.IsBoot);
// Unlocked Workstation, Device not found OR Device not connected - dont add to ignore
if (!_workstationUnlocker.IsConnected && (device == null || (device != null && !device.IsConnected)))
{
return;
}
try
{
// Unlocked Workstation, Device connected - add to ignore
if (!_workstationUnlocker.IsConnected && device != null && device.IsConnected)
{
return;
}
// Locked Workstation, Device not found OR not connected - connect add to ignore
if (_workstationUnlocker.IsConnected && (device == null || (device != null && !device.IsConnected)))
{
await _connectionFlowProcessor.ConnectAndUnlock(mac, OnUnlockAttempt);
}
}
catch (Exception)
{
// Silent handling. Log is already printed inside of _connectionFlowProcessor.ConnectAndUnlock()
}
finally
{
_advIgnoreListMonitor.Ignore(mac);
}
}
finally
{
Interlocked.Exchange(ref _isConnecting, 0);
}
}
}