///<summary>
/// Starts the asynchronous connection process.
/// User callbacks are: OnConnected() when successful - or OnDisconnect() in case of failure.
/// UserContext.Data will contain the data object passed here.
/// Timeout is defined by the TCP stack.
///</summary>
public void BeginConnect(object data)
{
if (_client != null)
{
return;
}
_context = new Context(null, null);
_context.BufferSize = 512;
_context.UserContext.DataFrame = new DataFrame();
_context.UserContext.SetOnConnect(OnConnect);
_context.UserContext.SetOnConnected(OnConnected);
_context.UserContext.SetOnDisconnect(OnDisconnect);
_context.UserContext.SetOnSend(OnSend);
_context.UserContext.SetOnReceive(OnReceive);
_context.UserContext.Data = data;
try
{
ReadyState = ReadyStates.CONNECTING;
_context.UserContext.OnConnect();
_client = new TcpClient();
_context.Connection = _client;
_connecting = true;
_client.BeginConnect(_host, _port, OnClientConnected, null);
}
catch (Exception ex)
{
Disconnect();
_context.UserContext.LatestException = ex;
_context.UserContext.OnDisconnect();
}
}
public void Connect()
{
if (_client != null) return;
try
{
ReadyState = ReadyStates.CONNECTING;
_client = new TcpClient();
_connecting = true;
_client.BeginConnect(_host, _port, OnRunClient, null);
var waiting = new TimeSpan();
while (_connecting && waiting < ConnectTimeout)
{
var timeSpan = new TimeSpan(0, 0, 0, 0, 100);
waiting = waiting.Add(timeSpan);
Thread.Sleep(timeSpan.Milliseconds);
}
if (_connecting) throw new Exception("Timeout");
}
catch (Exception)
{
Disconnect();
OnFailedConnection(null);
}
}
public void Disconnect()
{
_connecting = false;
if (_client == null)
{
return;
}
var dataFrame = new DataFrame();
dataFrame.Append(new byte[0]);
var bytes = dataFrame.AsFrame()[0].Array;
ReadyState = ReadyStates.CLOSING;
bytes[0] = 0x88;
if (_context != null && _context.UserContext != null)
{
_context.UserContext.Send(bytes);
}
_client.Close();
_client = null;
ReadyState = ReadyStates.CLOSED;
}
public void Connect()
{
if (_client != null)
{
return;
}
try
{
ReadyState = ReadyStates.CONNECTING;
_client = new TcpClient();
_connecting = true;
_client.BeginConnect(_host, _port, OnRunClient, null);
var waiting = new TimeSpan();
while (_connecting && waiting < ConnectTimeout)
{
var timeSpan = new TimeSpan(0, 0, 0, 0, 100);
waiting = waiting.Add(timeSpan);
Thread.Sleep(timeSpan.Milliseconds);
}
}
catch (Exception)
{
Disconnect();
}
}
public void Send(string body)
{
if (client == null || requestMessage == null)
{
return;
}
if (requestTask != null)
{
return;
}
requestTask = Task.Run(async() => {
try {
var responseHeaders = await client.SendRequestAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead);
ProjectRuntime.Inst.DispatchRuntimeCode(() => {
objRef.SetProperty(JavaScriptPropertyId.FromString("status"), JavaScriptValue.FromInt32((int)responseHeaders.StatusCode), true);
string statusText = $"{(int)responseHeaders.StatusCode} {responseHeaders.ReasonPhrase}";
objRef.SetProperty(JavaScriptPropertyId.FromString("statusText"), JavaScriptValue.FromString(statusText), true);
});
ReadyState = ReadyStates.Headers_Received;
// ReadyState = ReadyStates.Loading; // ignore, we don't do partial responses
var content = await responseHeaders.Content.ReadAsStringAsync();
ProjectRuntime.Inst.DispatchRuntimeCode(() => {
objRef.SetProperty(JavaScriptPropertyId.FromString("responseType"), JavaScriptValue.FromString("text"), true);
objRef.SetProperty(JavaScriptPropertyId.FromString("response"), JavaScriptValue.FromString(content), true);
objRef.SetProperty(JavaScriptPropertyId.FromString("responseText"), JavaScriptValue.FromString(content), true);
var callback = objRef.Get("onload");
if (callback.ValueType == JavaScriptValueType.Function)
{
callback.CallFunction(callback);
}
});
} catch (Exception e) {
ProjectRuntime.Inst.DispatchRuntimeCode(() => {
var callback = objRef.Get("onerror");
if (callback.ValueType == JavaScriptValueType.Function)
{
callback.CallFunction(callback);
}
});
}
ReadyState = ReadyStates.Done;
requestMessage = null;
requestTask = null;
});
/*
* cancellationTokenSource = new CancellationTokenSource();
* requestTask = Task.Run(async () => {
* var response = await request;//.AsTask(cancellationTokenSource.Token);
* //response.
* int dsa = 0;
* });
*/
}
public void Open(string method, string url)
{
var httpMethod = GetHttpMethod(method);
if (httpMethod == null)
{
return;
}
client = new HttpClient();
try {
requestMessage = new HttpRequestMessage(httpMethod, new Uri(url));
} catch (Exception e) {
System.Diagnostics.Debug.WriteLine(e);
return;
}
ReadyState = ReadyStates.Opened;
}
public void Disconnect()
{
_connecting = false;
if (_client == null)
{
return;
}
if (_context != null)
{
if (ReadyState == ReadyStates.OPEN)
{
ReadyState = ReadyStates.CLOSING;
// see http://stackoverflow.com/questions/17176827/websocket-close-packet
var bytes = new byte[6];
bytes[0] = 0x88; // Fin + Close
bytes[1] = 0x80; // Mask = 1, Len = 0
bytes[2] = 0;
bytes[3] = 0;
bytes[4] = 0; // Mask = 0
bytes[5] = 0; // Mask = 0
_context.UserContext.Send(bytes, raw: true);
Thread.Sleep(30); // let the send thread do its work
}
ReadyState = ReadyStates.CLOSING;
_context.Dispose(); // sets Connected=false and notifies UserContext
}
if (_client != null)
{
var temp = _client;
_client = null;
temp.Close();
}
IsAuthenticated = false;
ReadyState = ReadyStates.CLOSED;
}
private bool CheckAuthenticationResponse(Context context)
{
var receivedData = context.UserContext.DataFrame.ToString();
var header = new Header(receivedData);
var handshake = new ServerHandshake(header);
if (Authentication.GenerateAccept(_handshake.Key) != handshake.Accept)
{
return(false);
}
if (SubProtocols != null)
{
if (header.SubProtocols == null)
{
return(false);
}
foreach (var s in SubProtocols)
{
if (header.SubProtocols.Contains(s) && String.IsNullOrEmpty(CurrentProtocol))
{
CurrentProtocol = s;
}
}
if (String.IsNullOrEmpty(CurrentProtocol))
{
return(false);
}
}
ReadyState = ReadyStates.OPEN;
IsAuthenticated = true;
_connecting = false;
context.UserContext.OnConnected();
return(true);
}
private bool CheckAuthenticationResponse(Context context)
{
var receivedData = context.UserContext.DataFrame.ToString();
var header = new Header(receivedData);
var handshake = new ServerHandshake(header);
if (Authentication.GenerateAccept(_handshake.Key) != handshake.Accept) return false;
if (SubProtocols != null)
{
if (header.SubProtocols == null)
{
return false;
}
foreach (var s in SubProtocols)
{
if (header.SubProtocols.Contains(s) && String.IsNullOrEmpty(CurrentProtocol))
{
CurrentProtocol = s;
}
}
if(String.IsNullOrEmpty(CurrentProtocol))
{
return false;
}
}
ReadyState = ReadyStates.OPEN;
IsAuthenticated = true;
_connecting = false;
context.UserContext.OnConnected();
return true;
}
public void Disconnect()
{
_connecting = false;
if (_client == null) return;
var dataFrame = new DataFrame();
dataFrame.Append(new byte[0]);
var bytes = dataFrame.AsFrame()[0].Array;
ReadyState = ReadyStates.CLOSING;
bytes[0] = 0x88;
_context.UserContext.Send(bytes);
_client.Close();
_client = null;
ReadyState = ReadyStates.CLOSED;
}
///<summary>
/// Starts the asynchronous connection process.
/// User callbacks are: OnConnected() when successful - or OnDisconnect() in case of failure.
/// UserContext.Data will contain the data object passed here.
/// Timeout is defined by the TCP stack.
///</summary>
public void BeginConnect(object data)
{
if (_client != null) return;
_context = new Context(null, null);
_context.BufferSize = 512;
_context.UserContext.DataFrame = new DataFrame();
_context.UserContext.SetOnConnect(OnConnect);
_context.UserContext.SetOnConnected(OnConnected);
_context.UserContext.SetOnDisconnect(OnDisconnect);
_context.UserContext.SetOnSend(OnSend);
_context.UserContext.SetOnReceive(OnReceive);
_context.UserContext.Data = data;
try
{
ReadyState = ReadyStates.CONNECTING;
_context.UserContext.OnConnect();
_client = new TcpClient();
_context.Connection = _client;
_connecting = true;
_client.BeginConnect(_host, _port, OnClientConnected, null);
}
catch (Exception ex)
{
Disconnect();
_context.UserContext.LatestException = ex;
_context.UserContext.OnDisconnect();
}
}
public void Disconnect()
{
_connecting = false;
if (_client == null) return;
if (_context != null)
{
if (ReadyState == ReadyStates.OPEN)
{
ReadyState = ReadyStates.CLOSING;
// see http://stackoverflow.com/questions/17176827/websocket-close-packet
var bytes = new byte[6];
bytes[0] = 0x88; // Fin + Close
bytes[1] = 0x80; // Mask = 1, Len = 0
bytes[2] = 0;
bytes[3] = 0;
bytes[4] = 0; // Mask = 0
bytes[5] = 0; // Mask = 0
_context.UserContext.Send(bytes, raw: true);
Thread.Sleep(30); // let the send thread do its work
}
_context.Connected = false;
ReadyState = ReadyStates.CLOSING;
_context.Cancellation.Cancel();
_context.Connection = null;
}
_client.Close();
_client = null;
IsAuthenticated = false;
ReadyState = ReadyStates.CLOSED;
}
private void CheckAuthenticationResponse(Context context)
{
var receivedData = context.UserContext.DataFrame.ToString();
var header = new Header(receivedData);
var handshake = new ServerHandshake(header);
if (Authentication.GenerateAccept(_handshake.Key) != handshake.Accept) return;
ReadyState = ReadyStates.OPEN;
IsAuthenticated = true;
_connecting = false;
context.UserContext.OnConnected();
}
