static async Task <bool> connectAsync(string uri, CancellationToken token, Action <Connection> onConnection, Action <ClientWebSocketOptions> setOptions = null)
{
ClientWebSocket webSocket = null;
var isClosedSuccessfully = true;
try
{
webSocket = new ClientWebSocket();
setOptions?.Invoke(webSocket.Options);
await webSocket.ConnectAsync(new Uri(uri), token);
}
catch (Exception)
{
webSocket?.Dispose();
throw;
}
var connection = new Connection(webSocket, CookieUtils.GetCookies(webSocket.Options.Cookies?.GetCookies(new Uri(uri))));
try
{
onConnection(connection);
await connection.ListenReceiveAsync(token);
}
finally
{
isClosedSuccessfully = webSocket.State != WebSocketState.Aborted;
webSocket?.Dispose();
}
return(isClosedSuccessfully);
}
static async Task handleSocketAsync(HttpListenerContext ctx, CancellationToken token, Action <Connection, WebSocketContext> onConnect)
{
if (!ctx.Request.IsWebSocketRequest)
{
return;
}
WebSocketContext wsCtx = null;
WebSocket webSocket = null;
try
{
wsCtx = await ctx.AcceptWebSocketAsync(subProtocol : null);
webSocket = wsCtx.WebSocket;
}
catch (Exception)
{
ctx.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
ctx.Response.Close();
return;
}
var connection = new Connection(webSocket, CookieUtils.GetCookies(wsCtx.CookieCollection));
try
{
lock (connections) connections.Add(connection);
onConnect(connection, wsCtx);
await connection.ListenReceiveAsync(token);
}
catch (Exception ex)
{
connection.InvokeOnError(ex);
}
finally
{
webSocket?.Dispose();
lock (connections) connections.Remove(connection);
}
}