public void ProcessMessage(IClient client, InboundMessage message)
{
string text = message.StringMessage;
if (client.IsInChatroom)
{
if (text.ToLower().Equals("/leave"))
{
ChatRoom chatRoom = this.Chatrooms.FirstOrDefault(cr => cr.UniqueId == client.ChatRoomUniqueId);
if (chatRoom != null)
{
chatRoom.ClientLeave(client);
}
}
else
{//chatroom broadcast - chat area
ChatRoom chatRoom = this.Chatrooms.FirstOrDefault(cr => cr.UniqueId == client.ChatRoomUniqueId);
if (chatRoom != null)
{
chatRoom.BroadCastMessage(new OutboundMessage(client.Nickname + ": " + text));
return;//input prompt is dealt with above
}
}
}
else if (!client.HasNickname)
{
if (this.Clients.Any(c => c.Nickname == text))
{
client.Send(new OutboundMessage("Sorry, name taken."));
PromptForNickname(client);
return;
}
client.SetNickname(text);
client.Send(new OutboundMessage("Welcome " + text + "!"));
client.Send(new OutboundMessage("To see available chatrooms type: /rooms"));
}
else if (text.ToLower() == "/rooms")
{
SendActiveRoomsTo(client);
}
else if (text.ToLower().StartsWith("/join "))
{
string roomName = text.ToLower().Replace("/join ", "");
ChatRoom chatroomToEnter = this.Chatrooms.FirstOrDefault(cr => cr.Name.Equals(roomName));
if (chatroomToEnter != null)
{
client.Send(new OutboundMessage("entering room: " + chatroomToEnter.Name));
chatroomToEnter.ClientJoin(client);
client.EnterChatroom(chatroomToEnter.UniqueId);
foreach (IClient chatroomClient in chatroomToEnter.Clients)
{
string clientNameStr =
client.Equals(chatroomClient)
? "* " + chatroomClient.Nickname + "(** this is you)"
: "* " + chatroomClient.Nickname;
client.Send(new OutboundMessage(clientNameStr));
}
client.Send(new OutboundMessage("end of list."));
client.Send(new OutboundMessage("To leave type: /leave"));
}
else
{
client.Send(new OutboundMessage("Sorry, no such room."));
this.SendActiveRoomsTo(client);
}
}
else
{
client.Send(new OutboundMessage("Invalid command, join a chatroom to start chatting!"));
this.SendActiveRoomsTo(client);
}
SendClientInputPrompt(client);
}
private async void Listen(WebClient client)
{
WebSocket webSocket = client.Socket;
try
{
byte[] byteBuffer = new byte[BufferSize];
ArraySegment <byte> receiveBuffer = new ArraySegment <byte>(byteBuffer);
if (webSocket.State == WebSocketState.Open)
{
WebSocketReceiveResult receiveResult;
try
{
//CancellationTokenSource ct = new CancellationTokenSource(10000);
//CancellationToken token = ct.Token;
receiveResult = await webSocket.ReceiveAsync(receiveBuffer, CancellationToken.None);
}
catch (Exception)
{
this.Listen(client);
return;
}
if (!receiveBuffer.Any())
{
this.Listen(client);
}
client.AppendBytes(receiveBuffer.Array.Where(b => !b.Equals((byte)0)).ToArray());
if (receiveResult.EndOfMessage == false)
{
this.Listen(client);
return;
}
InboundMessage message = new InboundMessage(client.CurrentBytesSentWithoutNewLine.ToArray());
client.ClearBytes();
Console.WriteLine("WEB Text: " + message.StringMessage);
if (message.StringMessage == "/quit") // Client wants to exit gracefully
{
client.Send(new OutboundMessage("BYE"));
CloseClientConnection(client);
return;
}
this.ClientService.ProcessMessage(client, message);
this.Listen(client);
}
}
catch (Exception e)
{
Console.WriteLine("Exception: {0}", e);
this.CloseClientConnection(client);
if (webSocket != null)
{
webSocket.Dispose();
}
}
}