frmlogin.cs

一个p2p的c#版源码

namespace Listener
{
	// Library includes
    using System;
    using System.Drawing;
    using System.Collections;
    using System.ComponentModel;
    using System.Windows.Forms;
	using System.Net;			// added for httprequest and responses and hostname resolving
	using System.IO;			// added for file streaming
	using System.Text;			// added for text encodings
	using WorkingWithXML;
	using System.Net.Sockets;
    using System.Threading;
	using System.Runtime.InteropServices;
	using System.Windows.Forms.Design;

    public class frmLogin : System.Windows.Forms.Form
    {
		Socket newSock;
		[DllImport("Shell32.dll")]
		public static extern int ShellExecute(int hwnd, 
			string lpVerb,
			string lpFile, 
			string lpParameters, 
			string lpDirectory,
			int nShowCmd );

		// State maintainig variables;
		private bool bLoggedIn;
		private int IconNo;
		private bool bShareDialogOpend;
		private bool bDownLoading;

		private Byte[] buffer;
		private string LoginName;
		private int ChatWindowCount;
        //    Variable required in communication with server
		private ServerCommunication xmlServerComm;

        //    Communcation facilitators on sockets.
		private Socket servSock;

        //    Xml reuests and responses are created using these objects
		private XMLCreater xmlCreater;
		private XMLParser  xmlParser;

        //    Threads of this application's being.
        //    Threads for continious update on sys tray
        //    and for continious seeking for connections 
        //    from browsers, respactively.
		private Thread AcceptThread,ThreadIcon,RespondingThread;

		private System.ComponentModel.IContainer components;
		private System.Windows.Forms.Label lbCopyright;
		private System.Windows.Forms.ToolTip toolTip1;
		private System.Windows.Forms.MenuItem ctxMenuShare;
		private System.Windows.Forms.MenuItem ctxMenuQuit;
		private System.Windows.Forms.TextBox textLoginID;
		private System.Windows.Forms.Button btnShareFileFolder;
		private System.Windows.Forms.Label labelLoginID;
		private System.Windows.Forms.CheckBox chkRemeberID;
		private System.Windows.Forms.Button btnLogin;
		private System.Windows.Forms.Button btnQuit;
		private System.Windows.Forms.MenuItem menuItem1;
		private System.Windows.Forms.MenuItem ListenCntxtMenu;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.NotifyIcon ListenIcon;
		private System.Windows.Forms.ContextMenu contextMenu;
		private System.Windows.Forms.Button button1;

		// First functions that gets called in this form's life cycle
		// Initailizes all the GUI controls and reads username last 
		//used, if any and puts that on the form.
        public frmLogin()
        {
            InitializeComponent();
			// initialise objects getting used while communication
			// and parsing 
			xmlServerComm = new WorkingWithXML.ServerCommunication();
			xmlParser = new WorkingWithXML.XMLParser();
			xmlParser.LOGINXML = Application.StartupPath + "\\Login.xml";
			textLoginID.Text = ReadUsername();
			bLoggedIn			= false;
			bShareDialogOpend	= false;
			bDownLoading		= false;
			IconNo				= 1;
			ChatWindowCount		= 0;
			LoginName			= "";
			AcceptThread		= null; 
			ThreadIcon			= null;
			RespondingThread	= null;
        }

		// Reads user name and returns that to the caller
		public string ReadUsername()
		{
			string Username, sTemp;
			Username = null;
			if ( File.Exists(Application.StartupPath + "\\UserInfo.ini") )
			{
				// open userinof.ini file and read user name
				Stream fstr = File.OpenRead(Application.StartupPath + "\\UserInfo.ini");
				Byte[] buffer = new Byte[Convert.ToInt32(fstr.Length)];
				fstr.Read(buffer,0,Convert.ToInt32(fstr.Length));
				sTemp = Encoding.ASCII.GetString(buffer,0,Convert.ToInt32(buffer.Length));
				Username = sTemp.Substring(sTemp.IndexOf("=")+1);
				chkRemeberID.Checked = true;
				fstr.Close();
			}
			else 
				chkRemeberID.Checked = false;
			return Username;
		}

		// Writes user name to a files for next instenciation
		public void WriteUsername()
		{
			string buffer = "username=";
			Stream fstr = File.OpenWrite(Application.StartupPath + "\\UserInfo.ini");
			buffer += textLoginID.Text;
			fstr.Write(Encoding.ASCII.GetBytes(buffer),0,buffer.Length);
			fstr.Close();
		}

        ///  Clean up resources this application was using.
        public override void Dispose()
        {
            base.Dispose();
            components.Dispose();
        }

        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        private void InitializeComponent()
		{
			this.components = new System.ComponentModel.Container();
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(frmLogin));
			this.contextMenu = new System.Windows.Forms.ContextMenu();
			this.ctxMenuQuit = new System.Windows.Forms.MenuItem();
			this.ctxMenuShare = new System.Windows.Forms.MenuItem();
			this.ListenIcon = new System.Windows.Forms.NotifyIcon(this.components);
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.button1 = new System.Windows.Forms.Button();
			this.menuItem1 = new System.Windows.Forms.MenuItem();
			this.btnQuit = new System.Windows.Forms.Button();
			this.btnLogin = new System.Windows.Forms.Button();
			this.labelLoginID = new System.Windows.Forms.Label();
			this.toolTip1 = new System.Windows.Forms.ToolTip(this.components);
			this.btnShareFileFolder = new System.Windows.Forms.Button();
			this.textLoginID = new System.Windows.Forms.TextBox();
			this.chkRemeberID = new System.Windows.Forms.CheckBox();
			this.ListenCntxtMenu = new System.Windows.Forms.MenuItem();
			this.lbCopyright = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// contextMenu
			// 
			this.contextMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																						this.ctxMenuQuit,
																						this.ctxMenuShare});
			// 
			// ctxMenuQuit
			// 
			this.ctxMenuQuit.Index = 0;
			this.ctxMenuQuit.Text = "Quit";
			this.ctxMenuQuit.Click += new System.EventHandler(this.ctxMenuQuit_Click);
			// 
			// ctxMenuShare
			// 
			this.ctxMenuShare.Index = 1;
			this.ctxMenuShare.Text = "Share File/Folders";
			this.ctxMenuShare.Click += new System.EventHandler(this.ctxMenuShare_Click);
			// 
			// ListenIcon
			// 
			this.ListenIcon.ContextMenu = this.contextMenu;
			this.ListenIcon.Icon = ((System.Drawing.Icon)(resources.GetObject("ListenIcon.Icon")));
			this.ListenIcon.Text = "Peering Peers";
			this.ListenIcon.Visible = true;
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(895, 211);
			this.textBox1.Name = "textBox1";
			this.textBox1.TabIndex = 6;
			this.textBox1.Text = "";
			this.textBox1.Visible = false;
			this.textBox1.WordWrap = false;
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(450, 72);
			this.button1.Name = "button1";
			this.button1.TabIndex = 7;
			this.button1.Visible = false;
			// 
			// menuItem1
			// 
			this.menuItem1.Index = -1;
			this.menuItem1.Text = "";
			// 
			// btnQuit
			// 
			this.btnQuit.BackColor = System.Drawing.SystemColors.Control;
			this.btnQuit.DialogResult = System.Windows.Forms.DialogResult.Cancel;
			this.btnQuit.Location = new System.Drawing.Point(349, 145);
			this.btnQuit.Name = "btnQuit";
			this.btnQuit.Size = new System.Drawing.Size(75, 24);
			this.btnQuit.TabIndex = 5;
			this.btnQuit.Text = "Quit";
			this.toolTip1.SetToolTip(this.btnQuit, "Quit and Close");
			this.btnQuit.Click += new System.EventHandler(this.btnQuit_Click);
			// 
			// btnLogin
			// 
			this.btnLogin.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(0)));
			this.btnLogin.DialogResult = System.Windows.Forms.DialogResult.OK;
			this.btnLogin.Font = new System.Drawing.Font("Microsoft Sans Serif", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.btnLogin.ForeColor = System.Drawing.Color.LemonChiffon;
			this.btnLogin.Location = new System.Drawing.Point(74, 76);
			this.btnLogin.Name = "btnLogin";
			this.btnLogin.Size = new System.Drawing.Size(83, 29);
			this.btnLogin.TabIndex = 4;
			this.btnLogin.Text = "Login";
			this.toolTip1.SetToolTip(this.btnLogin, "Log-in with this LoginID.");
			this.btnLogin.Click += new System.EventHandler(this.btnLogin_Click);
			// 
			// labelLoginID
			// 
			this.labelLoginID.Location = new System.Drawing.Point(18, 30);
			this.labelLoginID.Name = "labelLoginID";
			this.labelLoginID.Size = new System.Drawing.Size(54, 14);
			this.labelLoginID.TabIndex = 2;
			this.labelLoginID.Text = "Login ID :";
			// 
			// btnShareFileFolder
			// 
			this.btnShareFileFolder.BackColor = System.Drawing.SystemColors.Control;
			this.btnShareFileFolder.Location = new System.Drawing.Point(199, 145);
			this.btnShareFileFolder.Name = "btnShareFileFolder";
			this.btnShareFileFolder.Size = new System.Drawing.Size(143, 24);
			this.btnShareFileFolder.TabIndex = 1;
			this.btnShareFileFolder.Text = "Share Files/Folders";
			this.toolTip1.SetToolTip(this.btnShareFileFolder, "Share your folders with other peers");
			this.btnShareFileFolder.Click += new System.EventHandler(this.btnShareFileFolder_Click);
			// 
			// textLoginID
			// 
			this.textLoginID.Location = new System.Drawing.Point(74, 28);
			this.textLoginID.Name = "textLoginID";
			this.textLoginID.Size = new System.Drawing.Size(281, 20);
			this.textLoginID.TabIndex = 0;
			this.textLoginID.Text = "";
			this.toolTip1.SetToolTip(this.textLoginID, "Write your Login name here.");
			// 
			// chkRemeberID
			// 
			this.chkRemeberID.Location = new System.Drawing.Point(74, 54);
			this.chkRemeberID.Name = "chkRemeberID";
			this.chkRemeberID.Size = new System.Drawing.Size(134, 18);
			this.chkRemeberID.TabIndex = 3;
			this.chkRemeberID.Text = "Remeber My Login ID";
			this.toolTip1.SetToolTip(this.chkRemeberID, "System will remember LoginID.");
			// 
			// ListenCntxtMenu
			// 
			this.ListenCntxtMenu.Index = -1;
			this.ListenCntxtMenu.Text = "";
			// 
			// lbCopyright
			// 
			this.lbCopyright.Location = new System.Drawing.Point(226, 6);
			this.lbCopyright.Name = "lbCopyright";
			this.lbCopyright.Size = new System.Drawing.Size(196, 12);
			this.lbCopyright.TabIndex = 8;
			this.lbCopyright.Text = "