/// <summary>Runs the application. Retrives a token from the authentication server, then retrieves the list of services, and
/// then opens the WebSocket(s) at the address(es) specified by service discovery using the token.</summary>
public void Run()
{
/* Get local hostname. */
IPAddress hostEntry = Array.Find(Dns.GetHostEntry(Dns.GetHostName()).AddressList, ip => ip.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork);
if (string.IsNullOrEmpty(_position))
{
_position = (hostEntry == null) ? "127.0.0.1/net" : hostEntry.ToString();
}
if (!GetAuthenticationInfo() || !DiscoverServices())
{
Environment.Exit(1);
}
_tokenTS = TimeSpan.FromTicks(DateTime.Now.Ticks).TotalMilliseconds;
if (_hostName != null)
{
_hosts.Add(new Tuple <string, string>(_hostName, _port));
if (_hostName2 != null)
{
_hosts.Add(new Tuple <string, string>(_hostName2, _port2));
}
}
Console.CancelKeyPress += Console_CancelKeyPress;
WebSocketSession session1 = null;
WebSocketSession session2 = null;
double curTS = 0.0;
double deltaTime = 0.0;
try
{
/* Open websocket(s) */
foreach (var host in _hosts)
{
var webSocketSession = new WebSocketSession("Session" + (_webSocketSessions.Count + 1), host.Item1, host.Item2);
_webSocketSessions.Add(webSocketSession.Name, webSocketSession);
webSocketSession.Connect();
Task.Factory.StartNew(() =>
{
webSocketSession.Run();
});
// if hotstandby is not supported, stop after connecting to the first host in hosts. Otherwise,
// connect to the first two hosts
if (_webSocketSessions.Count == 2 || !_hotstandby)
{
break;
}
}
// after 95% of the time allowed before the token expires, retrive a new set of tokens and send a login to each open websocket
while (true)
{
Thread.Sleep((int)(3000)); // in ms
session1 = _webSocketSessions["Session1"];
if (_webSocketSessions.ContainsKey("Session2"))
{
session2 = _webSocketSessions["Session2"];
}
if ((session1 != null && !session1.WebSocketConnected) || (session2 != null && !session2.WebSocketConnected))
{
if ((session1 != null && !session1.Reconnecting) || (session2 != null && !session2.Reconnecting))
{
curTS = TimeSpan.FromTicks(DateTime.Now.Ticks).TotalMilliseconds;
if ((_expiration_in_ms / 1000) < 600)
{
deltaTime = _expiration_in_ms * 0.95;
}
else
{
deltaTime = 300 * 1000;
}
if (Convert.ToInt64(curTS - deltaTime) >= Convert.ToInt64(_tokenTS))
{
if (!GetAuthenticationInfo())
{
Console_CancelKeyPress(null, null);
}
_tokenTS = TimeSpan.FromTicks(DateTime.Now.Ticks).TotalMilliseconds;
if (_expiration_in_ms != _original_expiration_in_ms)
{
System.Console.WriteLine("expire time changed from " + _original_expiration_in_ms / 1000
+ " sec to " + _expiration_in_ms / 1000 + " sec; retry login");
if (!GetAuthenticationInfo())
{
Console_CancelKeyPress(null, null);
}
}
}
}
else
{
if (!GetAuthenticationInfo())
{
Console_CancelKeyPress(null, null);
}
_tokenTS = TimeSpan.FromTicks(DateTime.Now.Ticks).TotalMilliseconds;
}
if (!session1.Canceling)
{
if (session1.WebSocket.State != WebSocketState.Open)
{
session1.Reconnect();
Task.Factory.StartNew(() =>
{
session1.Run();
});
}
}
if (session2 != null && !session2.Canceling)
{
if (session2.WebSocket.State != WebSocketState.Open)
{
session2.Reconnect();
Task.Factory.StartNew(() =>
{
session2.Run();
});
}
}
}
}
}
catch (Exception ex)
{
System.Console.WriteLine(ex);
Console.ReadKey();
}
finally
{
Console_CancelKeyPress(this, null);
Console.ReadKey();
}
}