private void ProcessSocketError(SocketError socketError)
{
var webSocketErrorArgs = new WebSocketErrorEventArgs();
if (socketError == SocketError.HostDown)
{
webSocketErrorArgs.ErrorType = WebSocketExceptionType.HOST_DOWN;
}
else if (socketError == SocketError.HostNotFound)
{
webSocketErrorArgs.ErrorType = WebSocketExceptionType.UNKNOWN_HOST;
}
else if (socketError == SocketError.HostUnreachable)
{
webSocketErrorArgs.ErrorType = WebSocketExceptionType.HOST_NOT_REACHABLE;
}
else
{
webSocketErrorArgs.ErrorType = WebSocketExceptionType.UNABLE_TO_CONNECT;
}
string message = "Error connecting to host: " + _uri.Host;
OnError(webSocketErrorArgs);
_status = WebSocketStatus.CLOSED;
}
private void OnError(WebSocketErrorEventArgs eventArgs)
{
_status = WebSocketStatus.CLOSED;
foreach (var listener in _listeners)
{
listener.ProcessOnError(eventArgs);
}
}
private void HandshakeFailed()
{
var webSocketErrorArgs = new WebSocketErrorEventArgs {
ErrorType = WebSocketExceptionType.OPENING_HANDSHAKE_FAILED, Message = "Opening handshake failed."
};
OnError(webSocketErrorArgs);
}
/// <summary>
/// The functions will connect the client to the specified websocket server.
/// </summary>
/// <param name="uri">The string represention of the uri of the web server to connect to.</param>
public void Connect(string uri)
{
if (_status != WebSocketStatus.CLOSED)
{
return;
}
try
{
_status = WebSocketStatus.CONNECTING;
_uri = new Uri(uri);
var webSocketHandshake = new WebSocketHandshake(_uri, SubProtocol.ToString(), WebSocketConstants.WS_VERSION_DEFAULT);
if (_socket != null && _socket.Connected)
{
_socket.Close();
}
var scheme = _uri.Scheme;
var port = _uri.Port;
var host = _uri.Host;
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_socket.NoDelay = true;
var hostEntry = new DnsEndPoint(host, port);
// Create a SocketAsyncEventArgs object to be used in the connection request
var socketEventArg = new SocketAsyncEventArgs();
socketEventArg.RemoteEndPoint = hostEntry;
socketEventArg.Completed += (sender, args) =>
{
if (args.SocketError == SocketError.Success)
{
webSocketHandshake.PerformHandShakeWithServer(_socket, HandshakeCompleted, HandshakeFailed);
}
else
{
ProcessSocketError(args.SocketError);
}
};
_socket.ConnectAsync(socketEventArg);
}
catch (Exception ex)
{
var webSocketErrorArgs = new WebSocketErrorEventArgs {
ErrorType = WebSocketExceptionType.UNABLE_TO_CONNECT, Message = ex.Message
};
OnError(webSocketErrorArgs);
}
}
/// <summary>
/// The functions will connect the client to the specified websocket server.
/// </summary>
/// <param name="uri">The string represention of the uri of the web server to connect to.</param>
public void Connect(string uri)
{
if (_status != WebSocketStatus.CLOSED)
{
return;
}
try
{
_status = WebSocketStatus.CONNECTING;
_uri = new Uri(uri);
var webSocketHandshake = new WebSocketHandshake(_uri, SubProtocol.ToString(), WebSocketConstants.WS_VERSION_DEFAULT);
if (_socket != null && _socket.Connected)
_socket.Close();
var scheme = _uri.Scheme;
var port = _uri.Port;
var host = _uri.Host;
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_socket.NoDelay = true;
var hostEntry = new DnsEndPoint(host, port);
// Create a SocketAsyncEventArgs object to be used in the connection request
var socketEventArg = new SocketAsyncEventArgs();
socketEventArg.RemoteEndPoint = hostEntry;
socketEventArg.Completed += (sender, args) =>
{
if (args.SocketError == SocketError.Success)
{
webSocketHandshake.PerformHandShakeWithServer(_socket, HandshakeCompleted, HandshakeFailed);
}
else
{
ProcessSocketError(args.SocketError);
}
};
_socket.ConnectAsync(socketEventArg);
}
catch (Exception ex)
{
var webSocketErrorArgs = new WebSocketErrorEventArgs { ErrorType = WebSocketExceptionType.UNABLE_TO_CONNECT, Message = ex.Message };
OnError(webSocketErrorArgs);
}
}
private void ProcessSocketError(SocketError socketError)
{
var webSocketErrorArgs = new WebSocketErrorEventArgs();
if (socketError == SocketError.HostDown)
{
webSocketErrorArgs.ErrorType = WebSocketExceptionType.HOST_DOWN;
}
else if (socketError == SocketError.HostNotFound)
{
webSocketErrorArgs.ErrorType = WebSocketExceptionType.UNKNOWN_HOST;
}
else if (socketError == SocketError.HostUnreachable)
{
webSocketErrorArgs.ErrorType = WebSocketExceptionType.HOST_NOT_REACHABLE;
}
else
{
webSocketErrorArgs.ErrorType = WebSocketExceptionType.UNABLE_TO_CONNECT;
}
string message = "Error connecting to host: " + _uri.Host;
OnError(webSocketErrorArgs);
_status = WebSocketStatus.CLOSED;
}
private void OnError(WebSocketErrorEventArgs eventArgs)
{
_status = WebSocketStatus.CLOSED;
foreach (var listener in _listeners)
{
listener.ProcessOnError(eventArgs);
}
}
private void HandshakeFailed()
{
var webSocketErrorArgs = new WebSocketErrorEventArgs { ErrorType = WebSocketExceptionType.OPENING_HANDSHAKE_FAILED, Message = "Opening handshake failed."};
OnError(webSocketErrorArgs);
}
