protected static bool _useSecure = false; //
#endregion Fields
#region Methods
//Add a new device to the list of currently connected devices
private static Device AddDevice(IWebSocketConnection conn, Request requestObject)
{
//Create the device
Device device = new Device()
{
AccountName = requestObject.AccountName,
ConnectionGuid = conn.ConnectionInfo.Id,
FriendlyName = requestObject.FriendlyName,
Id = Guid.Empty,
IP = conn.ConnectionInfo.ClientIpAddress,
Mode = requestObject.CurrentOperationMode
};
//Use the assigned id if the client is supplying one
if (requestObject.DeviceGuid != null)
device.Id = new Guid(requestObject.DeviceGuid); //We have a GUID so update to use that for this connection
//Work out the if we still need a device id and if we do then make one up.
if (device.Id == Guid.Empty) //If the device does not have a guid then request a new one
{
Guid generatedGuid = Guid.NewGuid();
device.Id = generatedGuid;
}//if
//Now actually add the Id to the list
_connectedDevices.TryAdd(device.Id.ToString(), device);
//If we wish to send notifications of on / offline devices then send them now
if (_deviceNotifications)
NotifyDevices(true,device);
//Return the device for use in reading
return device;
}
//Process a request for a new devcie ID from a client and handle appropiately
private static Request ProcessNewDeviceRequest(IWebSocketConnection conn, Request requestObject)
{
//See if we actually have this device already if so we can just retrun its Id to it
//If Id supplied matches a record then we have a match
var devices = _connectedDevices.Where(d => d.Key == requestObject.DeviceGuid || d.Value.ConnectionGuid == conn.ConnectionInfo.Id).ToList(); //Find this connection
Device device = new Device(); //Device stub for response
if (devices.Count == 0) //Check if we have the device in our lists
{
//Add the device to our connected devices list
device = AddDevice(conn, requestObject);
}//if
else
{
//Return the device data we already have on record
device = devices.FirstOrDefault().Value;
}//else
//Get a list of devices on this account to pass back to the caller
//Hosts
var hosts = _connectedDevices.Values.Where(h => h.AccountName == requestObject.AccountName && h.Mode == DeviceMode.Host && h.Id != Guid.Empty).ToList();
//Remotes
var remotes = _connectedDevices.Values.Where(r => r.AccountName == requestObject.AccountName && r.Mode == DeviceMode.Remote && r.Id != Guid.Empty).ToList();
//Send back a response to this device with its GUID
Request idResponse = new Request()
{
AccountName = requestObject.AccountName,
FriendlyName = requestObject.FriendlyName,
CurrentOperationMode = requestObject.CurrentOperationMode,
Action = RequestAction.IdResponse,
DeviceGuid = device.Id.ToString(),
IncludeAllHosts = false,
IncludeAllRemotes = false,
RelatedHostIds = Device.GetDeviceIds(hosts),
RelatedRemoteIds = Device.GetDeviceIds(remotes)
};
return idResponse;
}
private static void NotifyDevices(bool state, Device device)
{
Request notification = new Request
{
AccountName = device.AccountName,
Action = state ? RequestAction.DeviceOnline : RequestAction.DeviceOffline,
CurrentOperationMode = device.Mode,
DeviceGuid = device.Id.ToString(),
FriendlyName = device.FriendlyName
};
var interestedDevices = _connectedDevices.Where(d => d.Value.AccountName == device.AccountName).ToList();
var interestedSockets = _connectedSockets.Where(s => (interestedDevices.Select(d => d.Value.ConnectionGuid.ToString())).Contains(s.Key)).ToList();
//var x = interestedDevices
// .Join(_connectedSockets, d => d.Value.ConnectionGuid.ToString(), s => s.Key, (d, s) => s)
// .ToList();
var notificationJSON = JsonConvert.SerializeObject(notification);
//Send out
SendMessages(interestedSockets, notificationJSON);
}