Subversion Repositories general

using System;

using System.Drawing;

using System.Collections;

using System.Windows.Forms;

using System.IO;

using System.Net;

using System.Text;

using System.Text.RegularExpressions;

using System.Xml;

// GENERAL DESIGN

//

// Methods which are not running in the main application thread

// are not allowed no interact with GUI elemenents.

// FIXME:

//   - add soap validation

//   - icons for all items in the tree

//   - use pool of threads?

//   - do not store intermediate info, just row packets and the parsed fragments to display

//   - make the text fragment store switchable

//   - set locks during log writing (?)

//   - show '100 (Continue)' response info

namespace TCPproxy

{

	public class MainForm : Form

	{

		#region constants and settings

		private const int    RECENT_LENGTH          = 20;

		public  const string REGISTRY_KEY           = @"Software\Anatoli Klassen\TCPproxy";

		public  const string REGISTRY_RECENT_SUBKEY = "Recent Listenings";

		public  const byte   LOG_TYPE_BIN           = 1;

		public  const string LOG_BIN_HEADER         = "TCPproxy 1.0\n";

		#endregion constants and settings

		#region private fields

		private ListenForm   listenForm     = new ListenForm();

		private TcpListener  tcpListener    = null;

		private LogMessages  logMessages    = null;

		private Hashtable    treeNodes      = new Hashtable();

		private ArrayList    recentItems    = new ArrayList();

        private int          listenPort;

        private string       resendHost;

        private int          resendPort;

		private TcpShowMode  tcpShowMode    = TcpShowMode.ByDirection;

		private bool         autoExpand     = true;

		private bool         clearing       = false;

		private string       defaultCaption;

		#endregion private fields

		#region web forms fields

        private System.ComponentModel.IContainer components;

		private SaveFileDialog saveLogDialog;

        private StatusBarPanel connectionStatusBar;

        private MenuItem selectAllmenuItem;

        private MenuItem copyMenuItem;

        private ContextMenu viewContextMenu;

        private MenuItem closeConnectionMenuItem;

		private ImageList saveButtonImageList;

        private StatusBar statusBar;

        private ContextMenu messagesContextMenu;

		private ImageList treeImageList;

		private MenuItem wordWrapMenuItem;

        private MainMenu mainMenu;

        private MenuItem fileMenu;

        private MenuItem loadBinLogMenuItem;

        private MenuItem saveBinLogMenuItem;

        private MenuItem menuSeparator1;

        private MenuItem exitMenuItem;

        private MenuItem viewMenu;

        private MenuItem clearMainMenuItem;

        private MenuItem messagesMenu;

        private MenuItem saveLogMenuItem;

        private MenuItem saveTcoLogMenuItem;

        private MenuItem saveHttpLogMenuItem;

        private MenuItem saveXmlLogMenuItem;

        private MenuItem menuSeparator2;

        private MenuItem allMessagesMenuItem;

        private MenuItem importantMessagesMenuItem;

        private MenuItem infoMessagesMenuItem;

        private MenuItem menuSeparator3;

        private MenuItem tcpShowByDirectionMenuItem;

        private MenuItem tcpShowByTimeMenuItem;

        private MenuItem menuSeparator4;

        private MenuItem autoExpandMainMenuItem;

        private MenuItem wordWrapMainMenuItem;

        private MenuItem helpMenu;

        private Panel panel1;

        private Panel panel3;

        private Panel panel4;

        private ViewControl messagesBox;

        private Splitter splitter2;

        private ListBox logBox;

        private Splitter splitter1;

        private TreeView messageView;

        private MenuItem startMenuItem;

        private MenuItem stopMenuItem;

        private MenuItem menuSeparator5;

		private MenuItem recentListeningMenu;

		private MenuItem recentListeningNoItem;

		private SaveFileDialog saveBinLogDialog;

		private OpenFileDialog loadBinLogDialog;

		private MenuItem autoExpandMenuItem;

        private MenuItem aboutMenuItem;

		#endregion web forms fields

		#region Windows Form Designer generated code

		/// <summary>

		/// Required method for Designer support - do not modify

		/// the contents of this method with the code editor.

		/// </summary>

		private void InitializeComponent() {

            this.components=new System.ComponentModel.Container();

            System.ComponentModel.ComponentResourceManager resources=new System.ComponentModel.ComponentResourceManager(typeof(MainForm));

            this.wordWrapMenuItem=new System.Windows.Forms.MenuItem();

            this.treeImageList=new System.Windows.Forms.ImageList(this.components);

            this.messagesContextMenu=new System.Windows.Forms.ContextMenu();

            this.selectAllmenuItem=new System.Windows.Forms.MenuItem();

            this.copyMenuItem=new System.Windows.Forms.MenuItem();

            this.statusBar=new System.Windows.Forms.StatusBar();

            this.connectionStatusBar=new System.Windows.Forms.StatusBarPanel();

            this.saveButtonImageList=new System.Windows.Forms.ImageList(this.components);

            this.closeConnectionMenuItem=new System.Windows.Forms.MenuItem();

            this.viewContextMenu=new System.Windows.Forms.ContextMenu();

            this.autoExpandMenuItem=new System.Windows.Forms.MenuItem();

            this.saveLogDialog=new System.Windows.Forms.SaveFileDialog();

            this.mainMenu=new System.Windows.Forms.MainMenu(this.components);

            this.fileMenu=new System.Windows.Forms.MenuItem();

            this.startMenuItem=new System.Windows.Forms.MenuItem();

            this.stopMenuItem=new System.Windows.Forms.MenuItem();

            this.recentListeningMenu=new System.Windows.Forms.MenuItem();

            this.recentListeningNoItem=new System.Windows.Forms.MenuItem();

            this.menuSeparator5=new System.Windows.Forms.MenuItem();

            this.loadBinLogMenuItem=new System.Windows.Forms.MenuItem();

            this.saveBinLogMenuItem=new System.Windows.Forms.MenuItem();

            this.menuSeparator1=new System.Windows.Forms.MenuItem();

            this.saveLogMenuItem=new System.Windows.Forms.MenuItem();

            this.saveTcoLogMenuItem=new System.Windows.Forms.MenuItem();

            this.saveHttpLogMenuItem=new System.Windows.Forms.MenuItem();

            this.saveXmlLogMenuItem=new System.Windows.Forms.MenuItem();

            this.menuSeparator2=new System.Windows.Forms.MenuItem();

            this.exitMenuItem=new System.Windows.Forms.MenuItem();

            this.viewMenu=new System.Windows.Forms.MenuItem();

            this.clearMainMenuItem=new System.Windows.Forms.MenuItem();

            this.messagesMenu=new System.Windows.Forms.MenuItem();

            this.allMessagesMenuItem=new System.Windows.Forms.MenuItem();

            this.infoMessagesMenuItem=new System.Windows.Forms.MenuItem();

            this.importantMessagesMenuItem=new System.Windows.Forms.MenuItem();

            this.menuSeparator3=new System.Windows.Forms.MenuItem();

            this.tcpShowByDirectionMenuItem=new System.Windows.Forms.MenuItem();

            this.tcpShowByTimeMenuItem=new System.Windows.Forms.MenuItem();

            this.menuSeparator4=new System.Windows.Forms.MenuItem();

            this.autoExpandMainMenuItem=new System.Windows.Forms.MenuItem();

            this.wordWrapMainMenuItem=new System.Windows.Forms.MenuItem();

            this.helpMenu=new System.Windows.Forms.MenuItem();

            this.aboutMenuItem=new System.Windows.Forms.MenuItem();

            this.panel1=new System.Windows.Forms.Panel();

            this.panel3=new System.Windows.Forms.Panel();

            this.panel4=new System.Windows.Forms.Panel();

            this.splitter2=new System.Windows.Forms.Splitter();

            this.logBox=new System.Windows.Forms.ListBox();

            this.splitter1=new System.Windows.Forms.Splitter();

            this.messageView=new System.Windows.Forms.TreeView();

            this.saveBinLogDialog=new System.Windows.Forms.SaveFileDialog();

            this.loadBinLogDialog=new System.Windows.Forms.OpenFileDialog();

            this.messagesBox=new TCPproxy.ViewControl();

            ((System.ComponentModel.ISupportInitialize)(this.connectionStatusBar)).BeginInit();

            this.panel1.SuspendLayout();

            this.panel3.SuspendLayout();

            this.panel4.SuspendLayout();

            this.SuspendLayout();

            // 

            // wordWrapMenuItem

            // 

            this.wordWrapMenuItem.Index=2;

            this.wordWrapMenuItem.Text="Word &Wrap";

            this.wordWrapMenuItem.Click+=new System.EventHandler(this.wordWrapMenuItem_Click);

            // 

            // treeImageList

            // 

            this.treeImageList.ImageStream=((System.Windows.Forms.ImageListStreamer)(resources.GetObject("treeImageList.ImageStream")));

            this.treeImageList.TransparentColor=System.Drawing.Color.Magenta;

            this.treeImageList.Images.SetKeyName(0, "");

            this.treeImageList.Images.SetKeyName(1, "");

            this.treeImageList.Images.SetKeyName(2, "");

            // 

            // messagesContextMenu

            // 

            this.messagesContextMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

            this.selectAllmenuItem,

            this.copyMenuItem,

            this.wordWrapMenuItem});

            // 

            // selectAllmenuItem

            // 

            this.selectAllmenuItem.Index=0;

            this.selectAllmenuItem.Shortcut=System.Windows.Forms.Shortcut.CtrlA;

            this.selectAllmenuItem.Text="Select &All";

            this.selectAllmenuItem.Click+=new System.EventHandler(this.selectAllMenuItem_Click);

            // 

            // copyMenuItem

            // 

            this.copyMenuItem.Index=1;

            this.copyMenuItem.Shortcut=System.Windows.Forms.Shortcut.CtrlC;

            this.copyMenuItem.Text="&Copy";

            this.copyMenuItem.Click+=new System.EventHandler(this.copyMenuItem_Click);

            // 

            // statusBar

            // 

            this.statusBar.Location=new System.Drawing.Point(0, 279);

            this.statusBar.Name="statusBar";

            this.statusBar.Panels.AddRange(new System.Windows.Forms.StatusBarPanel[] {

            this.connectionStatusBar});

            this.statusBar.ShowPanels=true;

            this.statusBar.Size=new System.Drawing.Size(780, 22);

            this.statusBar.TabIndex=0;

            // 

            // connectionStatusBar

            // 

            this.connectionStatusBar.AutoSize=System.Windows.Forms.StatusBarPanelAutoSize.Spring;

            this.connectionStatusBar.Name="connectionStatusBar";

            this.connectionStatusBar.Width=764;

            // 

            // saveButtonImageList

            // 

            this.saveButtonImageList.ImageStream=((System.Windows.Forms.ImageListStreamer)(resources.GetObject("saveButtonImageList.ImageStream")));

            this.saveButtonImageList.TransparentColor=System.Drawing.Color.Magenta;

            this.saveButtonImageList.Images.SetKeyName(0, "");

            // 

            // closeConnectionMenuItem

            // 

            this.closeConnectionMenuItem.Index=0;

            this.closeConnectionMenuItem.Text="&Close connection";

            this.closeConnectionMenuItem.Click+=new System.EventHandler(this.closeConnectionMenuItem_Click);

            // 

            // viewContextMenu

            // 

            this.viewContextMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

            this.closeConnectionMenuItem,

            this.autoExpandMenuItem});

            // 

            // autoExpandMenuItem

            // 

            this.autoExpandMenuItem.Index=1;

            this.autoExpandMenuItem.Text="Auto E&xpand";

            this.autoExpandMenuItem.Click+=new System.EventHandler(this.autoExpandMenuItem_Click);

            // 

            // saveLogDialog

            // 

            this.saveLogDialog.DefaultExt="txt";

            this.saveLogDialog.Filter="Text Files (*.txt)|*.txt|All Files|*.*";

            this.saveLogDialog.Title="Save Log";

            // 

            // mainMenu

            // 

            this.mainMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

            this.fileMenu,

            this.viewMenu,

            this.helpMenu});

            // 

            // fileMenu

            // 

            this.fileMenu.Index=0;

            this.fileMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

            this.startMenuItem,

            this.stopMenuItem,

            this.recentListeningMenu,

            this.menuSeparator5,

            this.loadBinLogMenuItem,

            this.saveBinLogMenuItem,

            this.menuSeparator1,

            this.saveLogMenuItem,

            this.saveTcoLogMenuItem,

            this.saveHttpLogMenuItem,

            this.saveXmlLogMenuItem,

            this.menuSeparator2,

            this.exitMenuItem});

            this.fileMenu.Text="&File";

            // 

            // startMenuItem

            // 

            this.startMenuItem.Index=0;

            this.startMenuItem.Text="&Start...";

            this.startMenuItem.Click+=new System.EventHandler(this.startMenuItem_Click);

            // 

            // stopMenuItem

            // 

            this.stopMenuItem.Enabled=false;

            this.stopMenuItem.Index=1;

            this.stopMenuItem.Text="S&top";

            this.stopMenuItem.Click+=new System.EventHandler(this.stopMenuItem_Click);

            // 

            // recentListeningMenu

            // 

            this.recentListeningMenu.Index=2;

            this.recentListeningMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

            this.recentListeningNoItem});

            this.recentListeningMenu.Text="&Recent Listenings";

            // 

            // recentListeningNoItem

            // 

            this.recentListeningNoItem.Enabled=false;

            this.recentListeningNoItem.Index=0;

            this.recentListeningNoItem.Text="(no items)";

            // 

            // menuSeparator5

            // 

            this.menuSeparator5.Index=3;

            this.menuSeparator5.Text="-";

            // 

            // loadBinLogMenuItem

            // 

            this.loadBinLogMenuItem.Index=4;

            this.loadBinLogMenuItem.Text="&Load Bin Log...";

            this.loadBinLogMenuItem.Click+=new System.EventHandler(this.loadBinLogMenuItem_Click);

            // 

            // saveBinLogMenuItem

            // 

            this.saveBinLogMenuItem.Index=5;

            this.saveBinLogMenuItem.Text="&Save Bin Log...";

            this.saveBinLogMenuItem.Click+=new System.EventHandler(this.saveBinLogMenuItem_Click);

            // 

            // menuSeparator1

            // 

            this.menuSeparator1.Index=6;

            this.menuSeparator1.Text="-";

            // 

            // saveLogMenuItem

            // 

            this.saveLogMenuItem.Index=7;

            this.saveLogMenuItem.Text="Save Log Messa&ges...";

            this.saveLogMenuItem.Click+=new System.EventHandler(this.saveLogMenuItem_Click);

            // 

            // saveTcoLogMenuItem

            // 

            this.saveTcoLogMenuItem.Index=8;

            this.saveTcoLogMenuItem.Text="Save T&CP Log...";

            this.saveTcoLogMenuItem.Click+=new System.EventHandler(this.saveTcpMenuItem_Click);

            // 

            // saveHttpLogMenuItem

            // 

            this.saveHttpLogMenuItem.Index=9;

            this.saveHttpLogMenuItem.Text="Save Htt&p Log...";

            this.saveHttpLogMenuItem.Click+=new System.EventHandler(this.saveHttpMenuItem_Click);

            // 

            // saveXmlLogMenuItem

            // 

            this.saveXmlLogMenuItem.Index=10;

            this.saveXmlLogMenuItem.Text="Save X&ML Log...";

            this.saveXmlLogMenuItem.Click+=new System.EventHandler(this.saveXmlMenuItem_Click);

            // 

            // menuSeparator2

            // 

            this.menuSeparator2.Index=11;

            this.menuSeparator2.Text="-";

            // 

            // exitMenuItem

            // 

            this.exitMenuItem.Index=12;

            this.exitMenuItem.Text="E&xit";

            // 

            // viewMenu

            // 

            this.viewMenu.Index=1;

            this.viewMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

            this.clearMainMenuItem,

            this.messagesMenu,

            this.menuSeparator3,

            this.tcpShowByDirectionMenuItem,

            this.tcpShowByTimeMenuItem,

            this.menuSeparator4,

            this.autoExpandMainMenuItem,

            this.wordWrapMainMenuItem});

            this.viewMenu.Text="&View";

            // 

            // clearMainMenuItem

            // 

            this.clearMainMenuItem.Index=0;

            this.clearMainMenuItem.Text="&Clear";

            this.clearMainMenuItem.Click+=new System.EventHandler(this.clearMenuItem_Click);

            // 

            // messagesMenu

            // 

            this.messagesMenu.Index=1;

            this.messagesMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

            this.allMessagesMenuItem,

            this.infoMessagesMenuItem,

            this.importantMessagesMenuItem});

            this.messagesMenu.Text="&Messages";

            // 

            // allMessagesMenuItem

            // 

            this.allMessagesMenuItem.Checked=true;

            this.allMessagesMenuItem.Index=0;

            this.allMessagesMenuItem.Text="&All";

            this.allMessagesMenuItem.Click+=new System.EventHandler(this.messagesMenuItem_Click);

            // 

            // infoMessagesMenuItem

            // 

            this.infoMessagesMenuItem.Index=1;

            this.infoMessagesMenuItem.Text="&Info";

            this.infoMessagesMenuItem.Click+=new System.EventHandler(this.messagesMenuItem_Click);

            // 

            // importantMessagesMenuItem

            // 

            this.importantMessagesMenuItem.Index=2;

            this.importantMessagesMenuItem.Text="I&mportant";

            this.importantMessagesMenuItem.Click+=new System.EventHandler(this.messagesMenuItem_Click);

            // 

            // menuSeparator3

            // 

            this.menuSeparator3.Index=2;

            this.menuSeparator3.Text="-";

            // 

            // tcpShowByDirectionMenuItem

            // 

            this.tcpShowByDirectionMenuItem.Checked=true;

            this.tcpShowByDirectionMenuItem.Index=3;

            this.tcpShowByDirectionMenuItem.Text="TCP Show by &Direction";

            this.tcpShowByDirectionMenuItem.Click+=new System.EventHandler(this.tcpShowByDirectionMenuItem_Click);

            // 

            // tcpShowByTimeMenuItem

            // 

            this.tcpShowByTimeMenuItem.Index=4;

            this.tcpShowByTimeMenuItem.Text="TCP Show by &Time";

            this.tcpShowByTimeMenuItem.Click+=new System.EventHandler(this.tcpShowByTimeMenuItem_Click);

            // 

            // menuSeparator4

            // 

            this.menuSeparator4.Index=5;

            this.menuSeparator4.Text="-";

            // 

            // autoExpandMainMenuItem

            // 

            this.autoExpandMainMenuItem.Index=6;

            this.autoExpandMainMenuItem.Text="Auto E&xpand";

            this.autoExpandMainMenuItem.Click+=new System.EventHandler(this.autoExpandMenuItem_Click);

            // 

            // wordWrapMainMenuItem

            // 

            this.wordWrapMainMenuItem.Index=7;

            this.wordWrapMainMenuItem.Text="Word &Wrap";

            this.wordWrapMainMenuItem.Click+=new System.EventHandler(this.wordWrapMenuItem_Click);

            // 

            // helpMenu

            // 

            this.helpMenu.Index=2;

            this.helpMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

            this.aboutMenuItem});

            this.helpMenu.Text="&Help";

            // 

            // aboutMenuItem

            // 

            this.aboutMenuItem.Index=0;

            this.aboutMenuItem.Text="&About...";

            this.aboutMenuItem.Click+=new System.EventHandler(this.aboutMenuItem_Click);

            // 

            // panel1

            // 

            this.panel1.Controls.Add(this.panel3);

            this.panel1.Dock=System.Windows.Forms.DockStyle.Fill;

            this.panel1.Location=new System.Drawing.Point(0, 0);

            this.panel1.Name="panel1";

            this.panel1.Size=new System.Drawing.Size(780, 279);

            this.panel1.TabIndex=11;

            // 

            // panel3

            // 

            this.panel3.Controls.Add(this.panel4);

            this.panel3.Controls.Add(this.splitter1);

            this.panel3.Controls.Add(this.messageView);

            this.panel3.Dock=System.Windows.Forms.DockStyle.Fill;

            this.panel3.Location=new System.Drawing.Point(0, 0);

            this.panel3.Name="panel3";

            this.panel3.Size=new System.Drawing.Size(780, 279);

            this.panel3.TabIndex=5;

            // 

            // panel4

            // 

            this.panel4.Controls.Add(this.messagesBox);

            this.panel4.Controls.Add(this.splitter2);

            this.panel4.Controls.Add(this.logBox);

            this.panel4.Dock=System.Windows.Forms.DockStyle.Fill;

            this.panel4.Location=new System.Drawing.Point(163, 0);

            this.panel4.Name="panel4";

            this.panel4.Size=new System.Drawing.Size(617, 279);

            this.panel4.TabIndex=13;

            // 

            // splitter2

            // 

            this.splitter2.Dock=System.Windows.Forms.DockStyle.Bottom;

            this.splitter2.Location=new System.Drawing.Point(0, 208);

            this.splitter2.Name="splitter2";

            this.splitter2.Size=new System.Drawing.Size(617, 3);

            this.splitter2.TabIndex=9;

            this.splitter2.TabStop=false;

            // 

            // logBox

            // 

            this.logBox.Dock=System.Windows.Forms.DockStyle.Bottom;

            this.logBox.Font=new System.Drawing.Font("Courier New", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));

            this.logBox.HorizontalScrollbar=true;

            this.logBox.ItemHeight=16;

            this.logBox.Location=new System.Drawing.Point(0, 211);

            this.logBox.Name="logBox";

            this.logBox.ScrollAlwaysVisible=true;

            this.logBox.Size=new System.Drawing.Size(617, 68);

            this.logBox.TabIndex=8;

            // 

            // splitter1

            // 

            this.splitter1.Location=new System.Drawing.Point(160, 0);

            this.splitter1.Name="splitter1";

            this.splitter1.Size=new System.Drawing.Size(3, 279);

            this.splitter1.TabIndex=12;

            this.splitter1.TabStop=false;

            // 

            // messageView

            // 

            this.messageView.ContextMenu=this.viewContextMenu;

            this.messageView.Dock=System.Windows.Forms.DockStyle.Left;

            this.messageView.HideSelection=false;

            this.messageView.ImageIndex=0;

            this.messageView.ImageList=this.treeImageList;

            this.messageView.Location=new System.Drawing.Point(0, 0);

            this.messageView.Name="messageView";

            this.messageView.SelectedImageIndex=0;

            this.messageView.Size=new System.Drawing.Size(160, 279);

            this.messageView.TabIndex=11;

            this.messageView.AfterSelect+=new System.Windows.Forms.TreeViewEventHandler(this.messageView_AfterSelect);

            this.messageView.MouseDown+=new System.Windows.Forms.MouseEventHandler(this.messageView_MouseDown);

            this.messageView.BeforeSelect+=new System.Windows.Forms.TreeViewCancelEventHandler(this.messageView_BeforeSelect);

            // 

            // saveBinLogDialog

            // 

            this.saveBinLogDialog.DefaultExt="tcp";

            this.saveBinLogDialog.Filter="TCP Logs (*.bin)|*.bin|All Files|*.*";

            this.saveBinLogDialog.Title="Save Binary Log";

            // 

            // loadBinLogDialog

            // 

            this.loadBinLogDialog.FileName="openFileDialog1";

            this.loadBinLogDialog.Filter="TCP Logs (*.bin)|*.bin|All Files|*.*";

            this.loadBinLogDialog.Title="Load Binary Log";

            // 

            // messagesBox

            // 

            this.messagesBox.ContextMenu=this.messagesContextMenu;

            this.messagesBox.Dock=System.Windows.Forms.DockStyle.Fill;

            this.messagesBox.Font=new System.Drawing.Font("Courier New", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));

            this.messagesBox.Location=new System.Drawing.Point(0, 0);

            this.messagesBox.Name="messagesBox";

            this.messagesBox.Size=new System.Drawing.Size(617, 208);

            this.messagesBox.TabIndex=7;

            this.messagesBox.WordWrap=true;

            // 

            // MainForm

            // 

            this.AutoScaleBaseSize=new System.Drawing.Size(5, 13);

            this.ClientSize=new System.Drawing.Size(780, 301);

            this.Controls.Add(this.panel1);

            this.Controls.Add(this.statusBar);

            this.Menu=this.mainMenu;

            this.MinimumSize=new System.Drawing.Size(400, 200);

            this.Name="MainForm";

            this.StartPosition=System.Windows.Forms.FormStartPosition.Manual;

            this.Text="TCPproxy";

            ((System.ComponentModel.ISupportInitialize)(this.connectionStatusBar)).EndInit();

            this.panel1.ResumeLayout(false);

            this.panel3.ResumeLayout(false);

            this.panel4.ResumeLayout(false);

            this.ResumeLayout(false);

		}

		#endregion

		#region windows forms methods

		public MainForm()

		{

			InitializeComponent();

			logMessages = new LogMessages(logBox);

			try {

				LoadFromRegistry();

				LoadRecentItemsFromRegistry();

			}

			catch(Exception) {}

			// update visual elements

			UpdateMessagesMenuItems();

			if(tcpShowMode == TcpShowMode.ByDirection) {

				tcpShowByDirectionMenuItem.Checked = true;

				tcpShowByTimeMenuItem.Checked      = false;

			}

			else {

				tcpShowByDirectionMenuItem.Checked = false;

				tcpShowByTimeMenuItem.Checked      = true;

			}

			autoExpandMenuItem.Checked     = autoExpand;

			autoExpandMainMenuItem.Checked = autoExpand;

			wordWrapMenuItem.Checked       = messagesBox.WordWrap;

			wordWrapMainMenuItem.Checked   = messagesBox.WordWrap;

			// save default values

			defaultCaption = this.Text;

		}

		protected override void Dispose(bool disposing)

		{

			clearing = true;

			if(tcpListener != null) {

				tcpListener.StopListening();    // stop listening

				tcpListener.CancelAll();        // cancel all open connections

			}

			// save settings

			SaveToRegistry();

			SaveRecentItemsToRegistry();

			if( disposing )

			{

				if (components != null)

				{

					components.Dispose();

				}

			}

			base.Dispose( disposing );

			ThreadDebugger.PrintStatus();

		}

		[STAThread]

		static void Main()

		{

			Application.Run(new MainForm());

		}

		private void startMenuItem_Click(object sender, System.EventArgs e)

		{

			IPAddress resendIp;

			if(!listenForm.Execute(this,

				ref listenPort, ref resendHost, out resendIp, ref resendPort)) return;

			StartListening(listenPort, resendIp, resendPort);

		}

		private void stopMenuItem_Click(object sender, System.EventArgs e)

		{

			StopListening();

		}

		private void clearMenuItem_Click(object sender, System.EventArgs e)

		{

			ClearAll();

		}

		private void selectAllMenuItem_Click(object sender, System.EventArgs e)

		{

			messagesBox.SelectAll();

		}

		private void copyMenuItem_Click(object sender, System.EventArgs e)

		{

			string sel = messagesBox.SelectedText;

			if(sel != null) Clipboard.SetDataObject(sel);

		}

		private void wordWrapMenuItem_Click(object sender, System.EventArgs e)

		{

			messagesBox.WordWrap         = !messagesBox.WordWrap;

			wordWrapMenuItem.Checked     = messagesBox.WordWrap;

			wordWrapMainMenuItem.Checked = messagesBox.WordWrap;

		}

		private void autoExpandMenuItem_Click(object sender, System.EventArgs e)

		{

			autoExpand                     = !autoExpand;

			autoExpandMenuItem.Checked     = autoExpand;

			autoExpandMainMenuItem.Checked = autoExpand;

		}

		private void aboutMenuItem_Click(object sender, EventArgs e)

		{

			(new AboutForm()).ShowDialog(this);

		}

		private void messageView_BeforeSelect(object sender, TreeViewCancelEventArgs e)

		{

            messageView.Tag = null; // clear the right-click item

			if(messageView.SelectedNode == null) return;

			object tag = messageView.SelectedNode.Tag;

			if(tag is TreeNodeData)

			{

				TreeNodeData data = (TreeNodeData)tag;

				data.SaveViewState();

			}

		}

		private void messageView_AfterSelect(object sender, TreeViewEventArgs e)

		{

			if(messageView.SelectedNode == null) return;

			object tag = messageView.SelectedNode.Tag;

			if(tag is TreeNodeData)

			{

				TreeNodeData data = (TreeNodeData)tag;

				data.Show();

			}

		}

		private void closeConnectionMenuItem_Click(object sender, System.EventArgs e)

		{

            TreeNode node;

            if(messageView.Tag != null) {

                node = messageView.GetNodeAt((Point)messageView.Tag);

            }

            else {

                node = messageView.SelectedNode;

            }

			if(node != null)

            {

                object tag = node.Tag;

			    if(tag is TcpNodeData)

				    CloseTcpConnection(((TcpNodeData)tag).Tcp);

			    else if(tag is TcpNodeData)

				    CloseTcpConnection(((TcpNodeData)node.Parent.Tag).Tcp);

			    else if(tag is XmlNodeData)

				    CloseTcpConnection(((TcpNodeData)node.Parent.Parent.Tag).Tcp);

            }

		}

        private void messageView_MouseDown(object sender, MouseEventArgs e)

        {

            if(e.Button == MouseButtons.Right) {

                messageView.Tag = new Point(e.X, e.Y); // save mouse click coord

            }

        }

		private void tcpShowByDirectionMenuItem_Click(object sender, System.EventArgs e)

		{

			tcpShowMode = TcpShowMode.ByDirection;

			tcpShowByDirectionMenuItem.Checked = true;

			tcpShowByTimeMenuItem.Checked      = false;

            TreeNode node;

            if(messageView.Tag != null) {

                node = messageView.GetNodeAt((Point)messageView.Tag);

            }

            else {

                node = messageView.SelectedNode;

            }

			if(node != null)

            {

			    object tag = node.Tag;

			    if(tag is TcpNodeData)

				    UpdateTcpNodeInternal(((TcpNodeData)tag).Tcp);

            }

		}

		private void tcpShowByTimeMenuItem_Click(object sender, System.EventArgs e)

		{

			tcpShowMode = TcpShowMode.ByTime;

			tcpShowByDirectionMenuItem.Checked = false;

			tcpShowByTimeMenuItem.Checked      = true;

			if(messageView.SelectedNode == null) return;

            TreeNode node;

            if(messageView.Tag != null) {

                node = messageView.GetNodeAt((Point)messageView.Tag);

            }

            else {

                node = messageView.SelectedNode;

            }

			if(node != null)

            {

			    object tag = node.Tag;

			    if(tag is TcpNodeData)

				    UpdateTcpNodeInternal(((TcpNodeData)tag).Tcp);

            }

		}

		private void saveLogMenuItem_Click(object sender, System.EventArgs e)

		{

			if(saveLogDialog.ShowDialog() == DialogResult.OK) {

				try {

					SaveLog(saveLogDialog.FileName);

				}

				catch(Exception ex) {

					MessageBox.Show("Cannot save log to file " + saveLogDialog.FileName

						+ ":\n" + ex.Message, "TCPproxy",

						MessageBoxButtons.OK, MessageBoxIcon.Error);

				}

			}

		}

		private void saveTcpMenuItem_Click(object sender, System.EventArgs e)

		{

			if(saveLogDialog.ShowDialog() == DialogResult.OK) {

				try {

					SaveTcp(saveLogDialog.FileName);

				}

				catch(Exception ex) {

					MessageBox.Show("Cannot save TCP log to file " + saveLogDialog.FileName

						+ ":\n" + ex.Message, "TCPproxy",

						MessageBoxButtons.OK, MessageBoxIcon.Error);

				}

			}

		}

		private void saveHttpMenuItem_Click(object sender, System.EventArgs e)

		{

			if(saveLogDialog.ShowDialog() == DialogResult.OK) {

				try {

					SaveHttp(saveLogDialog.FileName);

				}

				catch(Exception ex) {

					MessageBox.Show("Cannot save HTTP log to file " + saveLogDialog.FileName

						+ ":\n" + ex.Message, "TCPproxy",

						MessageBoxButtons.OK, MessageBoxIcon.Error);

				}

			}

		}

		private void saveXmlMenuItem_Click(object sender, System.EventArgs e)

		{

			if(saveLogDialog.ShowDialog() == DialogResult.OK) {

				try {

					SaveXml(saveLogDialog.FileName);

				}

				catch(Exception ex) {

					MessageBox.Show("Cannot save XML log to file " + saveLogDialog.FileName

						+ ":\n" + ex.Message, "TCPproxy",

						MessageBoxButtons.OK, MessageBoxIcon.Error);

				}

			}

		}

		private void saveBinLogMenuItem_Click(object sender, EventArgs e)

		{

			if(saveBinLogDialog.ShowDialog() == DialogResult.OK) {

				try {

					SaveBinLog(saveBinLogDialog.FileName);

				}

				catch(Exception ex) {

					MessageBox.Show("Cannot save binary log to file " + saveBinLogDialog.FileName

						+ ":\n" + ex.Message, "TCPproxy",

						MessageBoxButtons.OK, MessageBoxIcon.Error);

				}

			}

		}

		private void loadBinLogMenuItem_Click(object sender, EventArgs e)

		{

			if(loadBinLogDialog.ShowDialog() == DialogResult.OK) {

				try {

					LoadBinLog(loadBinLogDialog.FileName);

				}

				catch(Exception ex) {

					MessageBox.Show("Cannot load binary log from file " + loadBinLogDialog.FileName

						+ ":\n" + ex.Message, "TCPproxy",

						MessageBoxButtons.OK, MessageBoxIcon.Error);

				}

			}

		}

		private void messagesMenuItem_Click(object sender, EventArgs e)

		{

			if(sender == importantMessagesMenuItem)

				logMessages.Level = LogLevel.Important;

			else if(sender == infoMessagesMenuItem)

				logMessages.Level = LogLevel.Info;

			else

				logMessages.Level = LogLevel.Debug;

			UpdateMessagesMenuItems();

		}

		private void recentMenuItem_Click(object sender, EventArgs e)

		{

			MenuItem   menuItem   = (MenuItem)sender;

			RecentItem recentItem = (RecentItem)recentItems[recentItems.Count - menuItem.Index - 1];

			IPAddress  resendIp;

			this.listenPort = recentItem.ListenPort;

			this.resendHost = recentItem.ResendHost;

			this.resendPort = recentItem.ResendPort;

			try

			{

				resendIp = HostUtils.ResendHostToIp(resendHost);

			}

			catch(Exception ex)

			{

				MessageBox.Show("Cannot get host IP: " + ex.Message, "TCPproxy",

					MessageBoxButtons.OK, MessageBoxIcon.Error);

				return;

			}

			StartListening(listenPort, resendIp, resendPort);

		}

		#endregion windows forms methods

		#region core methods

		private LogLevel ParseLogLevel(string str)

		{

			if(str == "Important")

				return LogLevel.Important;

			else if(str == "Info")

				return LogLevel.Info;

			else

				return LogLevel.Debug;

		}

		private void LoadFromRegistry()

		{

			Microsoft.Win32.RegistryKey subkey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(

				REGISTRY_KEY);

			if(subkey == null) return;

			listenPort           = (int)subkey.GetValue("Listen Port", 0);

			resendHost           = (string)subkey.GetValue("Resend Host", "");

			resendPort           = (int)subkey.GetValue("Resend Port", 0);

			logMessages.Level    = ParseLogLevel((string)subkey.GetValue("Messages Level", ""));

			autoExpand           = (int)subkey.GetValue("Auto Expand", 1) == 1;

			messagesBox.WordWrap = (int)subkey.GetValue("Word Wrap", 1) == 1;

			object tcpShowModeStr  = (object)subkey.GetValue("Tcp Show Mode", TcpShowMode.ByDirection);

			tcpShowMode            = (tcpShowModeStr as string) == "ByDirection"

				? TcpShowMode.ByDirection : TcpShowMode.ByTime;

			int winTop  = (int)subkey.GetValue("Window.Top",  -1);

			int winLeft = (int)subkey.GetValue("Window.Left", -1);

			if(winTop == -1 || winLeft == -1) {

				this.StartPosition = FormStartPosition.WindowsDefaultBounds;

			}

			else {

				this.Top  = winTop;

				this.Left = winLeft;

				this.ClientSize = new Size(

					(int)subkey.GetValue("Window.Width", this.ClientSize.Width),

					(int)subkey.GetValue("Window.Hight", this.ClientSize.Height));

				this.messageView.Width

					= (int)subkey.GetValue("Splitter.Left",   this.messageView.Width);

				this.logBox.Height

					= (int)subkey.GetValue("Splitter.Bottom", this.logBox.Height);

			}

		}

		private void LoadRecentItemsFromRegistry()

		{

			Microsoft.Win32.RegistryKey subkey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(

				REGISTRY_KEY + @"\" + REGISTRY_RECENT_SUBKEY);

			if(subkey == null) return;

			foreach(string name in subkey.GetValueNames()) {

				if(name == "") continue;

				AddRecentItem(RecentItem.LoadFromRegistry((string)subkey.GetValue(name, "")));

			}

		}

		private void SaveToRegistry()

		{

			Microsoft.Win32.RegistryKey subkey = Microsoft.Win32.Registry.CurrentUser.CreateSubKey(

				REGISTRY_KEY);

			subkey.SetValue("Listen Port",    listenPort);

			subkey.SetValue("Resend Host",    resendHost == null ? "" : resendHost);

			subkey.SetValue("Resend Port",    resendPort);

			subkey.SetValue("Messages Level", logMessages.Level);

			subkey.SetValue("Tcp Show Mode",  tcpShowMode);

			subkey.SetValue("Auto Expand",    autoExpand ? 1 : 0);

			subkey.SetValue("Word Wrap",      messagesBox.WordWrap ? 1 : 0);

			subkey.SetValue("Window.Top",      this.Top);

			subkey.SetValue("Window.Left",     this.Left);

			subkey.SetValue("Window.Hight",    this.ClientSize.Height);

			subkey.SetValue("Window.Width",    this.ClientSize.Width);

			subkey.SetValue("Splitter.Left",   this.messageView.Width);

			subkey.SetValue("Splitter.Bottom", this.logBox.Height);

		}

		private void SaveRecentItemsToRegistry()

		{

			Microsoft.Win32.RegistryKey subkey = Microsoft.Win32.Registry.CurrentUser.CreateSubKey(

				REGISTRY_KEY + @"\" + REGISTRY_RECENT_SUBKEY);

			// load existing from registry

			ArrayList old = new ArrayList();

			foreach(string name in subkey.GetValueNames()) {

				if(name == "") continue;

				old.Add(RecentItem.LoadFromRegistry((string)subkey.GetValue(name, "")));

			}

			// merge - for the case another program instance has changed the list

			foreach(RecentItem item in old) {

				int existingIdx = recentItems.IndexOf(item);

				if(existingIdx >= 0)

					((RecentItem)recentItems[existingIdx]).UpdateTimestamp(item);

				else

					recentItems.Add(item);

			}

			recentItems.Sort();

			if(recentItems.Count > 0) // take tail

				recentItems = recentItems.GetRange(Math.Max(0, recentItems.Count - RECENT_LENGTH),

					Math.Min(recentItems.Count, RECENT_LENGTH));

			int count = 0;

			foreach(RecentItem item in recentItems) {

				subkey.SetValue(string.Format("{0:0000}", count++), item.SaveToRegistry());

			}

		}

		private void UpdateMessagesMenuItems()

		{

			switch(logMessages.Level) {

				case LogLevel.Critical:

				case LogLevel.Error:

				case LogLevel.Warning:

				case LogLevel.Important:

					importantMessagesMenuItem.Checked = true;

					infoMessagesMenuItem.Checked      = false;

					allMessagesMenuItem.Checked       = false;

					break;

				case LogLevel.Info:

					importantMessagesMenuItem.Checked = false;

					infoMessagesMenuItem.Checked      = true;

					allMessagesMenuItem.Checked       = false;

					break;

				case LogLevel.Debug:

					importantMessagesMenuItem.Checked = false;

					infoMessagesMenuItem.Checked      = false;

					allMessagesMenuItem.Checked       = true;

					break;

			}

		}

		private void AddRecentItem(int listenPort, string resendHost, int resendPort)

		{

			RecentItem recentItem = new RecentItem(listenPort, resendHost, resendPort);

			recentItem.UpdateTimestamp();

			AddRecentItem(recentItem);

		}

		private void AddRecentItem(RecentItem recentItem)

		{

			int existingIdx = recentItems.IndexOf(recentItem);

			if(existingIdx >= 0) {

				this.recentListeningMenu.MenuItems.RemoveAt(recentItems.Count - existingIdx - 1);

				recentItems.RemoveAt(existingIdx);

			}

			if(recentItems.Count == 0 && this.recentListeningMenu.MenuItems.Count == 1)

				this.recentListeningMenu.MenuItems.RemoveAt(0);

			recentItems.Add(recentItem);

			MenuItem menuItem = new MenuItem();

			this.recentListeningMenu.MenuItems.Add(0, menuItem);

			menuItem.Text   = string.Format("&1 {0} to {1}:{2}",

				recentItem.ListenPort, recentItem.ResendHost, recentItem.ResendPort);

			menuItem.Click += new System.EventHandler(recentMenuItem_Click);

			// check overflow

			if(recentItems.Count > RECENT_LENGTH) {

				this.recentListeningMenu.MenuItems.RemoveAt(recentItems.Count - 1);

				recentItems.RemoveAt(0);

			}

			// update hot keys of old items

			int count = 0;

			foreach(MenuItem item in this.recentListeningMenu.MenuItems) {

				RecentItem ri = (RecentItem)recentItems[recentItems.Count - count - 1];

				if(count == 0) {

				}

				else if(count < 10)

					item.Text = string.Format("&{3} {0} to {1}:{2}", ri.ListenPort,

						ri.ResendHost, ri.ResendPort, count + 1);

				else

					item.Text = string.Format("{0} to {1}:{2}", ri.ListenPort,

						ri.ResendHost, ri.ResendPort);

				count++;