public bool Release(ProxyConnection conn)
{
lock (this)
{
if (conn.clientSocket != null)
{
WinTunnel.WriteTextToConsole(String.Format(" Releasing ProxyConnection#{0}: Client {1}, Server {2}.",
conn.connNumber,
conn.clientSocket.Client.RemoteEndPoint.ToString(),
conn.serverName+conn.serverPort));
}
else
{
WinTunnel.WriteTextToConsole(string.Format("Releasing ProxyConnection#{0}: Server {1}.",
conn.connNumber,
conn.serverName + conn.serverPort));
}
conn.disconnect();
m_connections.Remove(conn);
}
return true;
}
public ProxyConnection AddConnection( ProxyConnection conn)
{
lock(this)
{
WinTunnel.WriteTextToConsole(string.Format("Allocating ProxyConnection#{0} for new connection.", m_connCount));
m_connections.Add(conn);
conn.connNumber = m_connCount++;
}
return conn;
}
//Call back when the server listener socket has connected to a client request
public static void DoAcceptTcpClientCallback(IAsyncResult ar)
{
ProxyConnection conn = null;
try
{
ProxyClientListenerTask listener = (ProxyClientListenerTask)ar.AsyncState;
if (listener.m_bContinue)
{
listener.allDone.Set();
//create a new task for connecting to the server side.
conn = new ProxyConnection(m_bHttpsClient, m_bHttpsServer);
conn.clientSocket = listener.tcpListener.EndAcceptTcpClient(ar); //accept the client connection
WinTunnel.WriteTextToConsole(string.Format("Conn#{0} Accepted new connection. Local: {1}, Remote: {2}.",
conn.connNumber,
conn.clientSocket.Client.LocalEndPoint.ToString(),
conn.clientSocket.Client.RemoteEndPoint.ToString()));
conn.serverName = listener.m_serverName;
conn.serverPort = listener.m_serverPort;
IPHostEntry hostInfo = Dns.GetHostEntry(conn.serverName);
// Get the DNS IP addresses associated with the host.
IPAddress[] IPaddresses = hostInfo.AddressList;
conn.serverSocket = new TcpClient(AddressFamily.InterNetwork);
conn.serverSocket.BeginConnect(IPaddresses[0], conn.serverPort, new AsyncCallback(ProxySwapDataTask.connectForwardServerCallBack), conn);
}
}
catch (SocketException se)
{
WinTunnel.WriteTextToConsole(string.Format("Conn# {0} Socket Error occurred when accepting client socket. Error Code is: {1}",
conn.connNumber, se.ErrorCode));
if (conn != null && WinTunnel.connMgr!= null)
{
WinTunnel.connMgr.Release(conn);
}
}
catch (Exception e)
{
WinTunnel.WriteTextToConsole(string.Format("Conn# {0} Error occurred when accepting client socket. Error is: {1}",
conn.connNumber, e));
if (conn != null && WinTunnel.connMgr != null)
{
WinTunnel.connMgr.Release(conn);
}
}
}
public ProxySwapDataTask(ProxyConnection conn)
{
m_conn = conn;
}