private void TryEstablishConnection( )
{
if (null == TcpClient)
{
TcpClient = new TcpClient( );
}
while (EndPointEnumerator.MoveNext( ))
{
CurrentEndPoint = EndPointEnumerator.Current;
Debug.Print("ServerConnector.TryEstablishConnection: trying {0}", CurrentEndPoint);
OnConnectionAttemptStarted(CurrentEndPoint);
try {
TcpClient.BeginConnect(CurrentEndPoint.Address, CurrentEndPoint.Port, ConnectCallback, null);
return;
}
catch (NotSupportedException e) {
Debug.Print("ServerConnector.TryEstablishConnection: TcpClient.BeginConnect: caught NotSupportedException:\n{0}", e);
}
catch (Exception e) {
Debug.Print("ServerConnector.TryEstablishConnection: TcpClient.BeginConnect: caught exception:\n{0}", e);
}
}
if (null != TcpClient)
{
SocketRegistry.Unregister(TcpClient.Client.LocalEndPoint as IPEndPoint);
TcpClient.Close( );
TcpClient = null;
}
EndPointEnumerator.Dispose( );
EndPoints = null;
OnConnectionFailed(new Exception("Ran out of IP addresses and ports to try."));
}
private void ConnectCallback(IAsyncResult ar)
{
bool retry = false;
try {
TcpClient.EndConnect(ar);
}
catch (SocketException e) {
Debug.Print("ServerConnector.ConnectCallback: TcpClient.EndConnect: caught SocketException, error code {0}:\n{1}", e.ErrorCode, e);
OnConnectionAttemptFailed(CurrentEndPoint, e);
retry = true;
}
catch (Exception e) {
Debug.Print("ServerConnector.ConnectCallback: TcpClient.EndConnect: caught exception:\n{0}", e);
OnConnectionAttemptFailed(CurrentEndPoint, e);
retry = true;
}
if (retry)
{
TryEstablishConnection( );
return;
}
EndPointEnumerator.Dispose( );
EndPoints = null;
Debug.Print("ServerConnector.ConnectCallback: Connected!");
SocketRegistry.Register(TcpClient.Client.LocalEndPoint as IPEndPoint, TcpClient.Client.RemoteEndPoint as IPEndPoint);
Debug.Print("ServerConnector.ConnectCallback: Constructing objects.");
var selfUser = new SelfUser {
NickName = Configuration.NickName,
HostName = Configuration.LocalHostName,
RealHostName = Configuration.LocalHostName,
RealName = Configuration.RealName,
UserName = Configuration.UserName,
NickServUserName = Configuration.NickServUserName,
NickServPassword = Configuration.NickServPassword,
};
_server = new Server {
ServerEndPoint = CurrentEndPoint,
SelfUser = selfUser,
ServerHostName = Configuration.ServerHostName,
ServerPassword = Configuration.Password,
};
_protocolHandler = new ProtocolHandler {
TcpClient = TcpClient,
SelfUser = selfUser,
Server = _server,
};
_server.ProtocolHandler = _protocolHandler;
selfUser.Server = _server;
if (CurrentEndPoint.UseSsl)
{
Debug.Print("ServerConnector.ConnectCallback: Starting SSL.");
_sslStream = new SslStream(TcpClient.GetStream( ), true, ServerCertificateValidationCallback, LocalCertificateSelectionCallback, EncryptionPolicy.RequireEncryption);
try {
_sslStream.BeginAuthenticateAsClient(Configuration.ServerHostName, CertificateCollection, SslProtocols.Default, true, AuthenticateAsClientCallback, null);
}
catch (Exception e) {
Debug.Print("ServerConnector.ConnectCallback: Caught exception calling BeginAuthenticateAsClient:\n{0}", e);
throw;
}
}
else
{
FinishConnection(TcpClient.GetStream( ));
}
}
