public void info()
{
Audit.WriteLine("CLRVersion = " + Environment.Version);
Audit.WriteLine("UserName = "******"Assembly version = " + typeof(ClientSocket).Assembly.FullName);
}
public void Connect(string address, int port)
{
Audit.WriteLine("Connect " + address + " -- " + port);
Disconnect();
mState = State.Waiting;
//
// permissions
SocketPermission mySocketPermission1 = new SocketPermission(PermissionState.None);
mySocketPermission1.AddPermission(NetworkAccess.Connect, TransportType.All, "localhost", 8800);
mySocketPermission1.Demand();
//
// Actually connect
//
// count .s, numeric and 3 .s =ipaddress
bool ipaddress = false;
bool text = false;
int count = 0;
int i;
for (i = 0; i < address.Length; i++)
{
if (address[i] == '.')
{
count++;
}
else
{
if (address[i] < '0' || address[i] > '9')
{
text = true;
}
}
}
if (count == 3 && text == false)
{
ipaddress = true;
}
if (!ipaddress)
{
Audit.WriteLine("Dns.Resolve " + address);
IPHostEntry IPHost = Dns.GetHostEntry(address);
string [] aliases = IPHost.Aliases;
IPAddress[] addr = IPHost.AddressList;
iep = new IPEndPoint(addr[0], port);
}
else
{
Audit.WriteLine("Use address " + address + " as ip");
iep = new IPEndPoint(IPAddress.Parse(address), port);
}
try
{
// Create New Socket
mSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
// Create New EndPoint
// This is a non blocking IO
mSocket.Blocking = false;
// set some random options
//
//mSocket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, 1);
//
// Assign Callback function to read from Asyncronous Socket
callbackProc = new AsyncCallback(ConnectCallback);
// Begin Asyncronous Connection
mSocket.BeginConnect(iep, callbackProc, mSocket);
}
catch (Exception eeeee)
{
Audit.WriteLine("e=" + eeeee);
throw;
// st_changed(STCALLBACK.ST_CONNECT, false);
}
}
private void OnRecievedData(IAsyncResult ar)
{
//Audit.WriteLine("OnReceivedData");
// Get The connection socket from the callback
Socket sock = (Socket)ar.AsyncState;
// is socket closing
if (!sock.Connected)
{
return;
}
// Get The data , if any
int nBytesRec = 0;
try
{
nBytesRec = sock.EndReceive(ar);
}
catch (System.ObjectDisposedException)
{
Console.WriteLine("Client socket OnReceived data received socket disconnect (object disposed)");
nBytesRec = 0;
OnData(null, 0); // notify close
return;
}
catch (System.Net.Sockets.SocketException se)
{
Console.WriteLine("Client socket OnReceived data received socket disconnect (" + se.Message + ")");
nBytesRec = 0;
OnData(null, 0); // notify close
return;
}
//Audit.WriteLine("OnReceivedData bytes="+nBytesRec);
if (OnData != null && nBytesRec > 0)
{
OnData(m_byBuff, nBytesRec);
}
if (nBytesRec > 0)
{
// process it if we're a client server socket
if (mSocketType == ServerSocketType.ClientServer)
{
for (int i = 0; i < nBytesRec; i++)
{
switch (mState)
{
case State.Waiting:
currentBuffer = new byte[MessageHeader.MessageHeaderSize];
currentBufferIndex = 0;
currentBuffer[currentBufferIndex++] = m_byBuff[i];
mState = State.ReadingHeader;
break;
case State.ReadingHeader:
currentBuffer[currentBufferIndex++] = m_byBuff[i];
if (currentBufferIndex >= MessageHeader.MessageHeaderSize)
{
currentMessageHeader = new MessageHeader(currentBuffer);
currentBuffer = new byte[currentMessageHeader.uMessageSize];
currentBufferIndex = 0;
mState = State.ReadingBuffer;
}
break;
case State.ReadingBuffer:
currentBuffer[currentBufferIndex++] = m_byBuff[i];
if (currentBufferIndex >= currentMessageHeader.uMessageSize)
{
string dump = System.Text.Encoding.Default.GetString(currentBuffer);
Audit.WriteLine("RCLRVersion = " + Environment.Version);
Audit.WriteLine("Writeline " + dump);
try
{
Message msg = Message.CreateFromByteArray(currentBuffer);
if (msg != null && this.OnNotify != null)
{
this.OnNotify("Data", msg);
}
}
catch (Exception e)
{
Audit.WriteLine("Exception handling message " + e);
}
mState = State.Waiting;
}
break;
default:
throw new ApplicationException("sorry, state '" + mState + "' not known");
}
}
}
//
//
try
{
// Define a new Callback to read the data
AsyncCallback recieveData = new AsyncCallback(OnRecievedData);
// Begin reading data asyncronously
mSocket.BeginReceive(m_byBuff, 0, m_byBuff.Length, SocketFlags.None, recieveData, mSocket);
//
}
catch (Exception e)
{
// assume socket was disconnected somewhere else if an exception occurs here
Audit.WriteLine("Socket BeginReceived failed with error " + e.Message);
Disconnect();
}
}
else
{
// If no data was recieved then the connection is probably dead
Audit.WriteLine("Socket was disconnected disconnected"); //+ sock.RemoteEndPoint );
Disconnect();
}
}
public ClientSocket()
{
Audit.WriteLine("Client socket created.");
info();
}
