// This starts the flow of data, and it is quite an intense multi step process
// So I will label it in sequential order
public void Start()
{
_queue.DispatchAsync(() =>
{
if (_client != null)
{
Log.To.Sync.W(Tag, "Ignoring duplicate call to Start...");
return;
}
_readWriteCancellationTokenSource = new CancellationTokenSource();
_writeQueue = new BlockingCollection <byte[]>();
_receivePause = new ManualResetEventSlim(true);
// STEP 1: Create the TcpClient, which is responsible for negotiating
// the socket connection between here and the server
try {
// ReSharper disable once UseObjectOrCollectionInitializer
_client = new TcpClient(AddressFamily.InterNetworkV6)
{
SendTimeout = (int)IdleTimeout.TotalMilliseconds,
ReceiveTimeout = (int)IdleTimeout.TotalMilliseconds
};
} catch (Exception e) {
DidClose(e);
return;
}
try {
_client.Client.DualMode = true;
} catch (ArgumentException) {
Log.To.Sync.I(Tag, "IPv4/IPv6 dual mode not supported on this device, falling back to IPv4");
_client = new TcpClient(AddressFamily.InterNetwork)
{
SendTimeout = (int)IdleTimeout.TotalMilliseconds,
ReceiveTimeout = (int)IdleTimeout.TotalMilliseconds
};
}
// STEP 2.5: The IProxy interface will detect a system wide proxy that is set
// And if it is, it will return an IWebProxy object to use
// Sending "CONNECT" request if IWebProxy object is not null
IProxy proxy = Service.GetInstance <IProxy>();
WebProxy webproxy = null;
try {
if (_client != null && !_client.Connected)
{
if (proxy != null)
{
Uri proxyUri = new Uri("http://" + _logic.UrlRequest.Host + ":" + _logic.UrlRequest.Port);
webproxy = (WebProxy)proxy.CreateProxy(proxyUri);
if (webproxy != null)
{
_logic.HasProxy = true;
connectProxyAsync(webproxy.Address.Host, webproxy.Address.Port, "proxyUer", "proxyPassword");
}
}
}
} catch { }
if (!_logic.HasProxy)
{
OpenConnectionToRemote();
}
});
}
