public async Task HandleWebSocket(WebSocketContext wsContext)
{
_context = wsContext;
const int maxMessageSize = 1024;
byte[] receiveBuffer = new byte[maxMessageSize];
WebSocket socket = _context.WebSocket;
while (socket.State == WebSocketState.Open)
{
WebSocketReceiveResult receiveResult = await socket.ReceiveAsync(new ArraySegment <byte>(receiveBuffer), CancellationToken.None);
if (receiveResult.MessageType == WebSocketMessageType.Close)
{
await socket.CloseAsync(WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None);
}
else if (receiveResult.MessageType == WebSocketMessageType.Binary)
{
await socket.CloseAsync(WebSocketCloseStatus.InvalidMessageType, "Cannot accept binary frame", CancellationToken.None);
}
else
{
var receivedString = Encoding.UTF8.GetString(receiveBuffer, 0, receiveResult.Count);
var echoString = string.Concat(UserName, " said: ", receivedString);
ArraySegment <byte> outputBuffer = new ArraySegment <byte>(Encoding.UTF8.GetBytes(echoString));
ChatApp.BroadcastMessage(echoString);
}
}
}
public void ProcessRequest(HttpContext context)
{
if (context.IsWebSocketRequest)
{
var chatuser = new ChatUser();
chatuser.UserName = context.Request.QueryString["name"];
ChatApp.AddUser(chatuser);
context.AcceptWebSocketRequest(chatuser.HandleWebSocket);
//context.AcceptWebSocketRequest(HandleWebSocket);
}
}