void OnConnected(BestHTTP.SocketIO.Socket socket, BestHTTP.SocketIO.Packet packet, object[] args)
{
IsConnected = true;
if (Connected != null)
{
Connected(this, null);
}
}
void OnConnected(BestHTTP.SocketIO.Socket socket, BestHTTP.SocketIO.Packet packet, object[] args)
{
Debug.Log("Connected to socket server");
}
/// <summary>
/// Called when a "connect" event received to the root namespace
/// </summary>
private void OnTransportOpen(Socket socket, Packet packet, params object[] args)
{
// If this is not the root namespace, then we send a connect message to the server
if (this.Namespace != "/")
(Manager as IManager).SendPacket(new Packet(TransportEventTypes.Message, SocketIOEventTypes.Connect, this.Namespace, string.Empty));
// and we are no open
IsOpen = true;
}
public Socket EmitAck(Packet originalPacket, params object[] args)
{
if (originalPacket == null)
throw new ArgumentNullException("originalPacket == null!");
if (/*originalPacket.Id == 0 ||*/
(originalPacket.SocketIOEvent != SocketIOEventTypes.Event && originalPacket.SocketIOEvent != SocketIOEventTypes.BinaryEvent))
throw new ArgumentException("Wrong packet - you can't send an Ack for a packet with id == 0 and SocketIOEvent != Event or SocketIOEvent != BinaryEvent!");
arguments.Clear();
if (args != null && args.Length > 0)
arguments.AddRange(args);
string payload = null;
try
{
payload = Manager.Encoder.Encode(arguments);
}
catch (Exception ex)
{
(this as ISocket).EmitError(SocketIOErrors.Internal, "Error while encoding payload: " + ex.Message + " " + ex.StackTrace);
return this;
}
if (payload == null)
throw new ArgumentException("Encoding the arguments to JSON failed!");
Packet packet = new Packet(TransportEventTypes.Message,
originalPacket.SocketIOEvent == SocketIOEventTypes.Event ? SocketIOEventTypes.Ack : SocketIOEventTypes.BinaryAck,
this.Namespace,
payload,
0,
originalPacket.Id);
(Manager as IManager).SendPacket(packet);
return this;
}
/// <summary>
/// Last call of the OnPacket chain(Transport -> Manager -> Socket), we will dispatch the event if there is any callback
/// </summary>
void ISocket.OnPacket(Packet packet)
{
// Some preprocessing of the the packet
switch(packet.SocketIOEvent)
{
case SocketIOEventTypes.Disconnect:
if (IsOpen)
{
IsOpen = false;
EventCallbacks.Call(EventNames.GetNameFor(SocketIOEventTypes.Disconnect), packet);
Disconnect();
}
break;
// Create an Error object from the server-sent json string
case SocketIOEventTypes.Error:
bool success = false;
var errDict = JSON.Json.Decode(packet.Payload, ref success) as Dictionary<string, object>;
if (success)
{
Error err = new Error((SocketIOErrors)Convert.ToInt32(errDict["code"]),
errDict["message"] as string);
EventCallbacks.Call(EventNames.GetNameFor(SocketIOEventTypes.Error), packet, err);
return;
}
break;
}
// Dispatch the event to all subscriber
EventCallbacks.Call(packet);
// call Ack callbacks
if ((packet.SocketIOEvent == SocketIOEventTypes.Ack || packet.SocketIOEvent == SocketIOEventTypes.BinaryAck) && AckCallbacks != null)
{
SocketIOAckCallback ackCallback = null;
if (AckCallbacks.TryGetValue(packet.Id, out ackCallback) &&
ackCallback != null)
{
try
{
ackCallback(this, packet, packet.Decode(Manager.Encoder));
}
catch (Exception ex)
{
HTTPManager.Logger.Exception("Socket", "ackCallback", ex);
}
}
AckCallbacks.Remove(packet.Id);
}
}
public Socket Emit(string eventName, SocketIOAckCallback callback, params object[] args)
{
bool blackListed = EventNames.IsBlacklisted(eventName);
if (blackListed)
throw new ArgumentException("Blacklisted event: " + eventName);
arguments.Clear();
arguments.Add(eventName);
// Find and swap any binary data(byte[]) to a placeholder string.
// Server side these will be swapped back.
List<byte[]> attachments = null;
if (args != null && args.Length > 0)
{
int idx = 0;
for (int i = 0; i < args.Length; ++i)
{
byte[] binData = args[i] as byte[];
if (binData != null)
{
if (attachments == null)
attachments = new List<byte[]>();
Dictionary<string, object> placeholderObj = new Dictionary<string, object>(2);
placeholderObj.Add(Packet.Placeholder, true);
placeholderObj.Add("num", idx++);
arguments.Add(placeholderObj);
attachments.Add(binData);
}
else
arguments.Add(args[i]);
}
}
string payload = null;
try
{
payload = Manager.Encoder.Encode(arguments);
}
catch(Exception ex)
{
(this as ISocket).EmitError(SocketIOErrors.Internal, "Error while encoding payload: " + ex.Message + " " + ex.StackTrace);
return this;
}
// We don't use it further in this function, so we can clear it to not hold any unwanted reference.
arguments.Clear();
if (payload == null)
throw new ArgumentException("Encoding the arguments to JSON failed!");
int id = 0;
if (callback != null)
{
id = Manager.NextAckId;
if (AckCallbacks == null)
AckCallbacks = new Dictionary<int, SocketIOAckCallback>();
AckCallbacks[id] = callback;
}
Packet packet = new Packet(TransportEventTypes.Message,
attachments == null ? SocketIOEventTypes.Event : SocketIOEventTypes.BinaryEvent,
this.Namespace,
payload,
0,
id);
if (attachments != null)
packet.Attachments = attachments; // This will set the AttachmentCount property too.
(Manager as IManager).SendPacket(packet);
return this;
}
/// <summary>
/// Disconnects this socket/namespace.
/// </summary>
void ISocket.Disconnect(bool remove)
{
// Send a disconnect packet to the server
if (IsOpen)
{
Packet packet = new Packet(TransportEventTypes.Message, SocketIOEventTypes.Disconnect, this.Namespace, string.Empty);
(Manager as IManager).SendPacket(packet);
// IsOpen must be false, becouse in the OnPacket preprocessing the packet would call this function again
IsOpen = false;
(this as ISocket).OnPacket(packet);
}
if (AckCallbacks != null)
AckCallbacks.Clear();
if (remove)
{
EventCallbacks.Clear();
(Manager as IManager).Remove(this);
}
}
/// <summary>
/// Will clone this packet to an identical packet instance.
/// </summary>
internal Packet Clone()
{
Packet packet = new Packet(this.TransportEvent, this.SocketIOEvent, this.Namespace, this.Payload, 0, this.Id);
packet.EventName = this.EventName;
packet.AttachmentCount = this.AttachmentCount;
packet.attachments = this.attachments;
return packet;
}
/// <summary>
/// Called from the currently operating Transport. Will pass forward to the Socket that has to call the callbacks.
/// </summary>
void IManager.OnPacket(Packet packet)
{
if (State == States.Closed)
return;
switch(packet.TransportEvent)
{
case TransportEventTypes.Ping:
(this as IManager).SendPacket(new Packet(TransportEventTypes.Pong, SocketIOEventTypes.Unknown, "/", string.Empty));
break;
case TransportEventTypes.Pong:
LastPongReceived = DateTime.UtcNow;
break;
}
Socket socket = null;
if (Namespaces.TryGetValue(packet.Namespace, out socket))
(socket as ISocket).OnPacket(packet);
else
HTTPManager.Logger.Warning("SocketManager", "Namespace \"" + packet.Namespace + "\" not found!");
}
/// <summary>
/// Internal function that called from the Socket class. It will send out the packet instantly, or if no transport is available it will store
/// the packet in the OfflinePackets list.
/// </summary>
void IManager.SendPacket(Packet packet)
{
ITransport trans = SelectTransport();
if (trans != null)
{
try
{
trans.Send(packet);
}
catch(Exception ex)
{
(this as IManager).EmitError(SocketIOErrors.Internal, ex.Message + " " + ex.StackTrace);
}
}
else
{
if (OfflinePackets == null)
OfflinePackets = new List<Packet>();
// The same packet can be sent through multiple Sockets.
OfflinePackets.Add(packet.Clone());
}
}
