protected void check_close(easy_socket.tcp.Socket_Data sender)
{
if (this.checkBox_transmit_close.Checked)
{
this.enable_state(false);
if (sender == this.socket_to_clt)
{
this.socket_to_srv.close();
this.evtConnectedToServer.Reset();
}
else
{
this.socket_to_clt.close();
}
}
else
{
if (sender == this.socket_to_clt)
{
this.radioButton_send_to_srv.Checked = true;
this.radioButton_send_to_clt.Enabled = false;
}
else
{
this.radioButton_send_to_clt.Checked = true;
this.radioButton_send_to_srv.Enabled = false;
}
}
}
protected void socket_data_arrival(easy_socket.tcp.Socket_Data sender, easy_socket.tcp.EventArgs_ReceiveDataSocket e)
{
if (this.checkBox_rcv_hexa_data.Checked)
{
this.textBox_telnet_add(easy_socket.hexa_convert.byte_to_hexa(e.buffer, " ") + " ");
}
else
{
string strdata = System.Text.Encoding.Default.GetString(e.buffer, 0, e.buffer_size);
// if telnet protocol
#region telnet protocol
if (this.b_telnet_protocol)
{
// data to show
byte[][] reply_array = this.telnet.parse(strdata);
if (reply_array != null)
{
for (int cnt = 0; cnt <= reply_array.GetUpperBound(0); cnt++)
{
this.clt.send(reply_array[cnt]);
}
}
}
#endregion
else if (strdata.Length > 0)
{
this.textBox_telnet_add(strdata);
}
}
}
public FormWhois(string ip, bool autofind, string other_server)
{
InitializeComponent();
Tools.GUI.XPStyle.MakeXPStyle(this);
this.textBox_whois_ip.Text = ip;
this.radioButton_whois_auto_find.Checked = autofind;
this.radioButton_whois_use_following.Checked = !autofind;
this.textBox_whois_server.Text = other_server;
this.textBox_whois_server.Enabled = !autofind;
this.socket = new easy_socket.tcp.Socket_Data();
this.socket.event_Socket_Data_Closed_by_Remote_Side += new easy_socket.tcp.Socket_Data_Closed_by_Remote_Side_EventHandler(socket_closed_by_remote_side);
this.socket.event_Socket_Data_Connected_To_Remote_Host += new easy_socket.tcp.Socket_Data_Connected_To_Remote_Host_EventHandler(socket_connected_to_remote_host);
this.socket.event_Socket_Data_DataArrival += new easy_socket.tcp.Socket_Data_DataArrival_EventHandler(socket_data_arrival);
this.socket.event_Socket_Data_Error += new easy_socket.tcp.Socket_Data_Error_EventHandler(socket_error);
this.data_to_send = "";
this.whois_server = "";
string filename = System.Windows.Forms.Application.StartupPath + "\\" + WHOIS_SERVER_LIST_FILE;
this.load_server_list(filename);
// send whois
this.button_whois_Click(this, null);
}
private void socket_event_Socket_Data_Closed_by_Remote_Side(easy_socket.tcp.Socket_Data sender, EventArgs e)
{
this.ConnectionState = PROXY_CONNECTION_STATE.CLOSED;
this.hevt_remotely_closed.Set();
if (this.event_ClassProxy_Closed_by_Remote_Side != null)
{
this.event_ClassProxy_Closed_by_Remote_Side(this, e);
}
}
private void socket_event_Socket_Data_Error(easy_socket.tcp.Socket_Data sender, easy_socket.tcp.EventArgs_Exception e)
{
this.ConnectionState = PROXY_CONNECTION_STATE.CLOSED;
this.hevt_error.Set();
if (this.event_ClassProxy_Error != null)
{
this.event_ClassProxy_Error(this, e);
}
}
private void socket_event_Socket_Data_Connected_To_Remote_Host(easy_socket.tcp.Socket_Data sender, EventArgs e)
{
this.ConnectionState = PROXY_CONNECTION_STATE.CONNECTED;
this.hevt_connected.Set();
if (this.event_ClassProxy_Connected_To_Remote_Host != null)
{
this.event_ClassProxy_Connected_To_Remote_Host(this, e);
}
}
protected void socket_closed_by_remote_side(easy_socket.tcp.Socket_Data sender, EventArgs e)
{
this.enable_state(false);
// return to a new line (split != send and send/receive)
if (!this.textBox_telnet.Text.EndsWith("\r\n"))
{
this.textBox_telnet_add("\r\n");
}
this.textBox_telnet_add("Connection closed by remote side.\r\n");
}
private void socket_event_Socket_Data_Send_Progress(easy_socket.tcp.Socket_Data sender, easy_socket.tcp.EventArgs_Send_Progress_Socket_Data e)
{
if (this.ConnectionState == PROXY_CONNECTION_STATE.READY_TO_SEND_USER_DATA)
{
if (this.event_ClassProxy_Send_Progress != null)
{
this.event_ClassProxy_Send_Progress(this, e);
}
}
}
public void new_tcp_client(System.Net.Sockets.Socket s, int port)
{
System.Net.IPEndPoint ipep = (System.Net.IPEndPoint)s.RemoteEndPoint;
this.Text = "Remote host (" + ipep.Address.ToString() + ":" + ipep.Port + ") connected on port " + port.ToString();
clt = new easy_socket.tcp.Socket_Data(s);
add_events();
// no reconnection available: this socket is from server
this.button_connect.Visible = false;
}
private void socket_event_Socket_Data_DataArrival(easy_socket.tcp.Socket_Data sender, easy_socket.tcp.EventArgs_ReceiveDataSocket e)
{
this.hevt_data_arrival.Set();
this.last_data = e.buffer;
if (this.ConnectionState == PROXY_CONNECTION_STATE.READY_TO_SEND_USER_DATA)
{
if (this.event_ClassProxy_DataArrival != null)
{
this.event_ClassProxy_DataArrival(this, e);
}
}
}
protected void socket_error(easy_socket.tcp.Socket_Data sender, easy_socket.tcp.EventArgs_Exception e)
{
if (this.textBox_telnet.Text != "")
{
if (!this.textBox_telnet.Text.EndsWith("\r\n"))
{
this.textBox_telnet_add("\r\n");
}
}
this.textBox_telnet_add("Socket Error: " + e.exception.Message + "\r\n");
this.enable_state(false);
}
protected void socket_error(easy_socket.tcp.Socket_Data sender, easy_socket.tcp.EventArgs_Exception e)
{
int res = System.Threading.WaitHandle.WaitAny(this.HexaViewWaitHandles);
if (res == 0) // close event
{
return;
}
this.add_info("Socket Error: " + e.exception.Message);
this.check_close(sender);
this.refresh_data();
this.evtNotWrittingData.Set();
}
public void new_tcp_client(string ip, int port, bool force_local_port, int local_port, bool telnet_protocol)
{
myip = ip;
myport = port;
this.Text = "Connected to " + myip + ":" + myport.ToString();
if (force_local_port)
{
try
{
this.Text += " local port:" + local_port.ToString();
clt = new easy_socket.tcp.Socket_Data(1024, local_port);//error are not catch
}
catch (Exception e)
{
this.textBox_telnet_add(e.Message + "\r\n");
if (e is System.Net.Sockets.SocketException)
{
System.Net.Sockets.SocketException se = (System.Net.Sockets.SocketException)e;
if (se.ErrorCode == 10048)
{
// return to a new line (split != send and send/receive)
if (!this.textBox_telnet.Text.EndsWith("\r\n"))
{
this.textBox_telnet_add("\r\n");
}
this.textBox_telnet_add("Please wait few seconds before retry.\r\n");
}
}
return;
}
}
else
{
clt = new easy_socket.tcp.Socket_Data();
}
add_events();
clt.connect(ip, port);
// for telnet protocol
#region telnet protocol
if (telnet_protocol)
{
this.set_telnet_protocol(true);
}
this.checkBox_telnet.Checked = telnet_protocol;
this.checkBox_beep_on_bell.Enabled = telnet_protocol;
this.checkBox_send_function_key.Enabled = telnet_protocol;
this.checkBox_no_buffer.Enabled = telnet_protocol;
#endregion
}
protected void socket_connected_to_remote_host(easy_socket.tcp.Socket_Data sender, EventArgs e)
{
int res = System.Threading.WaitHandle.WaitAny(this.HexaViewWaitHandles);
if (res == 0) // close event
{
return;
}
this.evtConnectedToServer.Set();
this.add_info("Connected to " + sender.RemoteIP + ":" + sender.RemotePort);
this.refresh_data();
this.evtNotWrittingData.Set();
}
protected void socket_closed_by_remote_side(easy_socket.tcp.Socket_Data sender, EventArgs e)
{
int res = System.Threading.WaitHandle.WaitAny(this.HexaViewWaitHandles);
if (res == 0) // close event
{
return;
}
if (sender == this.socket_to_srv)
{
this.evtConnectedToServer.Reset();
}
this.add_info("Connection closed by " + sender.RemoteIP + ":" + sender.RemotePort);
this.check_close(sender);
this.refresh_data();
this.evtNotWrittingData.Set();
}
public long proxy_time_out = 20;// timeout in sec
#endregion
#region constructors
public ClassProxy()
{
this.hevt_connected = new System.Threading.AutoResetEvent(false);
this.hevt_data_arrival = new System.Threading.AutoResetEvent(false);
this.hevt_remotely_closed = new System.Threading.AutoResetEvent(false);
this.hevt_error = new System.Threading.AutoResetEvent(false);
this.hevt_connection_state_unlocked = new System.Threading.AutoResetEvent(true);
this.connection_state = PROXY_CONNECTION_STATE.CLOSED;
this.socket = new easy_socket.tcp.Socket_Data();
this.socket.event_Socket_Data_Error += new easy_socket.tcp.Socket_Data_Error_EventHandler(socket_event_Socket_Data_Error);
this.socket.event_Socket_Data_DataArrival += new easy_socket.tcp.Socket_Data_DataArrival_EventHandler(socket_event_Socket_Data_DataArrival);
this.socket.event_Socket_Data_Connected_To_Remote_Host += new easy_socket.tcp.Socket_Data_Connected_To_Remote_Host_EventHandler(socket_event_Socket_Data_Connected_To_Remote_Host);
this.socket.event_Socket_Data_Closed_by_Remote_Side += new easy_socket.tcp.Socket_Data_Closed_by_Remote_Side_EventHandler(socket_event_Socket_Data_Closed_by_Remote_Side);
this.socket.event_Socket_Data_Send_Completed += new easy_socket.tcp.Socket_Data_Send_Completed_EventHandler(socket_event_Socket_Data_Send_Completed);
this.socket.event_Socket_Data_Send_Progress += new easy_socket.tcp.Socket_Data_Send_Progress_EventHandler(socket_event_Socket_Data_Send_Progress);
}
protected void socket_connected_to_remote_host(easy_socket.tcp.Socket_Data sender, EventArgs e)
{
if (clt.LocalIPEndPoint != null)
{
this.Text = "Connected to " + myip + ":" + myport.ToString();
this.Text += " local port:" + clt.LocalIPEndPoint.Port.ToString();
}
if (this.textBox_telnet.Text != "")
{
// return to a new line (split != send and send/receive)
if (!this.textBox_telnet.Text.EndsWith("\r\n"))
{
this.textBox_telnet_add("\r\n");
}
}
this.textBox_telnet_add("Connected to remote host.\r\n");
if (this.b_telnet_protocol)
{
this.telnet.reset();
}
}
public void new_tcp_interactive(System.Net.Sockets.Socket s, string remote_srv_ip, int remote_srv_port)
{
this.evtNotWrittingData = new System.Threading.AutoResetEvent(true);
this.evtStop = new System.Threading.ManualResetEvent(false);
this.evtConnectedToServer = new System.Threading.ManualResetEvent(false);
this.HexaViewWaitHandles = new System.Threading.WaitHandle[] { this.evtStop, this.evtNotWrittingData };
System.Net.IPEndPoint ipep = (System.Net.IPEndPoint)s.RemoteEndPoint;
this.Text = "Transfer between client " + ipep.Address.ToString() + ":" + ipep.Port + " and server " + remote_srv_ip + ":" + remote_srv_port.ToString();
this.socket_to_clt = new easy_socket.tcp.Socket_Data(s);
this.socket_to_clt.event_Socket_Data_Closed_by_Remote_Side += new easy_socket.tcp.Socket_Data_Closed_by_Remote_Side_EventHandler(socket_closed_by_remote_side);
this.socket_to_clt.event_Socket_Data_DataArrival += new easy_socket.tcp.Socket_Data_DataArrival_EventHandler(socket_data_arrival);
this.socket_to_clt.event_Socket_Data_Error += new easy_socket.tcp.Socket_Data_Error_EventHandler(socket_error);
this.socket_to_srv = new easy_socket.tcp.Socket_Data();
this.socket_to_srv.event_Socket_Data_Closed_by_Remote_Side += new easy_socket.tcp.Socket_Data_Closed_by_Remote_Side_EventHandler(socket_closed_by_remote_side);
this.socket_to_srv.event_Socket_Data_Connected_To_Remote_Host += new easy_socket.tcp.Socket_Data_Connected_To_Remote_Host_EventHandler(socket_connected_to_remote_host);
this.socket_to_srv.event_Socket_Data_DataArrival += new easy_socket.tcp.Socket_Data_DataArrival_EventHandler(socket_data_arrival);
this.socket_to_srv.event_Socket_Data_Error += new easy_socket.tcp.Socket_Data_Error_EventHandler(socket_error);
this.socket_to_srv.connect(remote_srv_ip, remote_srv_port);
}
protected void socket_closed_by_remote_side(easy_socket.tcp.Socket_Data sender, EventArgs e)
{
this.textBox_telnet_add("Connection closed by remote side.\r\n");
// check if we are redirected to another whois server
string str_last_whois_server_reply;
// keep only last server reply (remember we have written "Used server:\t" before data arrival)
int pos = this.textBox_telnet.Text.LastIndexOf("Used server:\t");
if (pos < 0)
{
this.panel_control.Enabled = true;
return;
}
// extract last server reply only from textbox
str_last_whois_server_reply = this.textBox_telnet.Text.Substring(pos);
// search "Whois server" in server reply
string[] res = null;
bool b_res = Tools.Text.ClassEreg.ereg(@"(whois server)([^w]*)(whois.)([^ \t\r\n]*)", str_last_whois_server_reply, ref res);
// if not found we should have informations
if (!b_res)
{
this.panel_control.Enabled = true;
return;
}
// if whois server is the same as the current one
if (this.whois_server == "whois." + res[4])
{
this.panel_control.Enabled = true;
return;
}
this.whois_server = "whois." + res[4];
this.textBox_telnet_add("Used server:\t" + this.whois_server + "\r\n");
this.socket.close();
this.socket.connect(this.whois_server, 43);
}
protected void socket_error(easy_socket.tcp.Socket_Data sender, easy_socket.tcp.EventArgs_Exception e)
{
this.textBox_telnet_add("Socket Error: " + e.exception.Message + "\r\n");
this.panel_control.Enabled = true;
}
protected void socket_data_arrival(easy_socket.tcp.Socket_Data sender, easy_socket.tcp.EventArgs_ReceiveDataSocket e)
{
string strdata = System.Text.Encoding.Default.GetString(e.buffer, 0, e.buffer_size);
this.textBox_telnet_add(strdata + "\r\n");
}
protected void socket_connected_to_remote_host(easy_socket.tcp.Socket_Data sender, EventArgs e)
{
this.textBox_telnet_add("Connected to remote host.\r\n");
// host ip
this.socket.send(this.data_to_send + "\r\n");
}
protected void socket_data_arrival(easy_socket.tcp.Socket_Data sender, easy_socket.tcp.EventArgs_ReceiveDataSocket e)
{
int res;
System.Threading.WaitHandle[] mHexaViewWaitHandles = new System.Threading.WaitHandle[] { this.evtStop, this.evtConnectedToServer };
// if sender is client
if (sender == this.socket_to_clt)
{
// wait to be connected to server before trying to translate data
res = System.Threading.WaitHandle.WaitAny(mHexaViewWaitHandles);
if (res == 0) // close event
{
return;
}
}
res = System.Threading.WaitHandle.WaitAny(this.HexaViewWaitHandles);
if (res == 0) // close event
{
return;
}
System.Drawing.Color color = System.Drawing.Color.Black;
bool b_transmit = false;
if (sender == this.socket_to_clt)
{
// transfer data if required
if (this.radioButton_clt_to_srv_allow.Checked)
{
b_transmit = true;
}
else if (this.radioButton_clt_to_srv_block.Checked)
{
b_transmit = false;
}
else// query
{
string msg = "Do you want to allow the transfer of following data from " + sender.RemoteIP + ":" + sender.RemotePort.ToString() + "?\r\n"
+ "Hexa Data:\r\n"
+ this.split_in_multiple_lines(easy_socket.hexa_convert.byte_to_hexa(e.buffer), 50)
+ "Text Data:\r\n"
+ this.split_in_multiple_lines(System.Text.Encoding.Default.GetString(e.buffer), 50);
b_transmit = (MessageBox.Show(this, msg, "Tcp Interactive", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes);
}
if (b_transmit)
{
this.socket_to_srv.send(e.buffer);
color = System.Drawing.Color.Blue;
}
else
{
color = System.Drawing.Color.Violet;
}
}
else
{
// transfer data if required
if (this.radioButton_srv_to_clt_allow.Checked)
{
b_transmit = true;
}
else if (this.radioButton_srv_to_clt_block.Checked)
{
b_transmit = false;
}
else// query
{
string msg = "Do you want to allow the transfer of following data from " + sender.RemoteIP + ":" + sender.RemotePort.ToString() + "?\r\n"
+ "Hexa Data:\r\n"
+ this.split_in_multiple_lines(easy_socket.hexa_convert.byte_to_hexa(e.buffer), 50)
+ "Text Data:\r\n"
+ this.split_in_multiple_lines(System.Text.Encoding.Default.GetString(e.buffer), 50);
b_transmit = (MessageBox.Show(this, msg, "Tcp Interactive", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes);
}
if (b_transmit)
{
this.socket_to_clt.send(e.buffer);
color = System.Drawing.Color.Black;
}
else
{
color = System.Drawing.Color.Red;
}
}
if (b_transmit)
{
this.add_info("Data from " + sender.RemoteIP + ":" + sender.RemotePort.ToString());
}
else
{
this.add_info("Data from " + sender.RemoteIP + ":" + sender.RemotePort.ToString() + "(Blocked)");
}
// color depends of sender && user action
this.add_data(e.buffer, color);
this.refresh_data();
this.evtNotWrittingData.Set();
}