[Release] [C#] Chat server

[iAegle]

I got bored and felt like making something so I tried to make a basic chat server which worked out pretty well after fixing 2 or 3 problems

You can basicly chat with everyone in the server, the server can also say stuff to everyone if you type "say [stuff]"

Just posting this incase anyone is interested in the source code

Server source:

CSHARP Code

using System;
using System.Collections.Generic;
using System.Text;
using System.Net.Sockets;
using System.Threading;
using System.IO;
 
namespace BasicServer
{
	class Program
	{
		static TcpListener Listener;
		static List<Client> Clients = new List<Client>();
		static int Port = -1, MaxClients = -1, Connected = 0;
		static void Main( string[] args )
		{
			Console.ForegroundColor = ConsoleColor.White;
 
			for( int i = 0 ; i < args.Length ; i++ )
			{
				if( args[i].ToLower() == "+port" )
				{
					Port = Convert.ToInt32( args[i + 1] );
					i++;
					continue;
				}
 
				if( args[i].ToLower() == "+maxclients" )
				{
					MaxClients = Convert.ToInt32( args[i + 1] );
					i++;
					continue;
				}
			}
 
			while( MaxClients < 1 )
			{
				Console.Write( "Enter the maximum amount of clients(1 or more): " );
				MaxClients = Convert.ToInt32( Console.ReadLine() );
			}
 
			if( Port == -1 )
			{
				Console.Write( "Please enter the port that you want to use: " );
				Port = Convert.ToInt32( Console.ReadLine() );
			}
 
			Console.Write( "Trying to start the server at port " + Port + ": " );
 
			try
			{
				Listener = new TcpListener( System.Net.IPAddress.Any, Port );
				Listener.Start();
 
				new Thread( () =>
				{
					while( true )
					{
						TcpClient Client = Listener.AcceptTcpClient();
						Thread ClientThread = new Thread( new ParameterizedThreadStart( ClientMain ) );
						ClientThread.Start( Client );
						Connected++;
					}
				} ).Start();
 
				new Thread( new ThreadStart( ReadConsole ) ).Start();
 
				Console.ForegroundColor = ConsoleColor.Green;
				Console.WriteLine( "Success!" );
				Console.ForegroundColor = ConsoleColor.White;
			}
			catch( Exception e )
			{
				Console.ForegroundColor = ConsoleColor.Red;
				Console.WriteLine( "Failed!" );
				Console.WriteLine( "Error: " + e.Message );
				Console.ForegroundColor = ConsoleColor.White;
				Console.Write( "Press any key to exit..." );
				Console.ReadKey();
				Environment.Exit( 0 );
			}
 
			System.Diagnostics.Process.GetCurrentProcess().WaitForExit();
		}
 
		static void SendToClient( NetworkStream Client, string Text )
		{
			byte[] buffer = Encoding.ASCII.GetBytes( Text );
			Client.Write( buffer, 0, buffer.Length );
			Client.Flush();
		}
 
		static void ReadConsole()
		{
			string Text;
			while( true )
			{
				Text = Console.ReadLine();
 
				if( Text == "quit" )
				{
					foreach( Client c in Clients )
					{
						c.Stream.Dispose();
						c.Stream.Close();
					}
					Environment.Exit( 0 );
				}
 
				if( Text.Split( ' ' )[0].ToLower() == "say" )
				{
					if( Connected <= 0 )
					{
						Console.WriteLine( "No clients connected ... " );
						continue;
					}
 
					try
					{
						foreach( Client c in Clients )
							SendToClient( 
								c.Stream,
								"Server: " + Text.Substring( 4 ) 
							);
 
						Console.ForegroundColor = ConsoleColor.Cyan;
						Console.Write( "Send: \t\t" );
						Console.ForegroundColor = ConsoleColor.White;
						Console.WriteLine( Text.Substring( 4 ) );
					}
					catch( Exception e ) { Console.WriteLine( e.Message ); }
				}
			}
		}
 
		static void ClientMain( object obj )
		{
			TcpClient NewClient = ( TcpClient )obj;
			NetworkStream ClientStream = NewClient.GetStream();
 
			int ID = Connected;
			byte[] bMessage = new byte[1024];
			string Message;
			int Recieved = ClientStream.Read( bMessage, 0, bMessage.Length );
			Array.Resize( ref bMessage, Recieved );
 
			if( !Encoding.ASCII.GetString( bMessage ).StartsWith( "#info" ) )
			{
				Console.WriteLine( "Someone tried to connect but it failed!" );
				ClientStream.Dispose();
				ClientStream.Close();
				return;
			}
 
			string Name = Encoding.ASCII.GetString( bMessage );
			Client Client = new Client( Name.Substring( 6 ), ID, ClientStream );
			Clients.Add( Client );
			Console.WriteLine( "New connection: " + Client.Name );
 
			while( true )
			{
				Recieved = 0;
				bMessage = new byte[1024];
				try
				{
					Recieved = ClientStream.Read( bMessage, 0, bMessage.Length );
					Array.Resize( ref bMessage, Recieved );
					Message = Encoding.ASCII.GetString( bMessage );
					Console.ForegroundColor = ConsoleColor.Cyan;
					Console.Write( "Recieved: \t" );
					Console.ForegroundColor = ConsoleColor.White;
					Console.WriteLine( Message );
 
					byte[] NewMes = Encoding.ASCII.GetBytes( Client.Name + ": " + Message );
					foreach( Client c in Clients )
						c.Stream.Write( NewMes, 0, NewMes.Length );
				}
				catch
				{
					Console.WriteLine( "Lost connection with " + Client.Name );
					break;
				}
			}
 
			ClientStream.Dispose();
			ClientStream.Close();
			Clients.Remove( Client );
			Connected--;
		}
 
		public class Client
		{
			public NetworkStream Stream;
			public int ID;
			public string Name;
			public Client( string name, int id, NetworkStream stream )
			{
				Name = name;
				ID = id;
				Stream = stream;
			}
		}
	}
}

Client chat form

CSHARP Code

using System;
using System.Text;
using System.Windows.Forms;
using System.Net.Sockets;
 
namespace Client 
{
	public partial class ChatForm : Form
	{
		NetworkStream Stream;
		public ChatForm( NetworkStream Stream )
		{
			InitializeComponent();
			this.Stream = Stream;
 
			new System.Threading.Thread( () =>
			{
				byte[] buffer;
				int Recieved;
				while( true )
				{
					try
					{
						buffer = new byte[1024];
						Recieved = this.Stream.Read( buffer, 0, buffer.Length );
						Array.Resize( ref buffer, Recieved );
 
						Invoke( ( MethodInvoker ) delegate
						{
							MessageBox.Text += Encoding.ASCII.GetString( buffer ) + "\r\n";
						} );
					}
					catch( Exception e )
					{
						System.Windows.Forms.MessageBox.Show( "Disconnected! \r\n" + e.Message );
						Environment.Exit( 0 );
					}
				}
			} ).Start();
		}
 
		private void button1_Click( object sender, EventArgs e )
		{
			byte[] buffer = Encoding.ASCII.GetBytes( TextBox.Text );
			this.Stream.Write( buffer, 0, buffer.Length );
			this.Stream.Flush();
			TextBox.Text = "";
		}
 
		private void TextBox_KeyPress( object sender, KeyPressEventArgs e )
		{
			if( e.KeyChar == ( char )Keys.Enter )
				button1_Click( new object(), new EventArgs() );
		}
	}
}

Client login form

CSHARP Code

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
 
namespace Client
{
	public partial class LoginForm : Form
	{
		public LoginForm()
		{
			InitializeComponent();
		}
 
		private void button1_Click( object sender, EventArgs e )
		{
			try
			{
				TcpClient Client = new TcpClient();
				IPEndPoint IP = new IPEndPoint(
					IPAddress.Parse( IPBox.Text ),
					Convert.ToInt32( PortBox.Text )
				);
 
				if( !Login( NameBox.Text, PwBox.Text ) )
				{
					MessageBox.Show( "Invalid password or username!\r\n" +
						"Are you sure this account exists?" );
					return;
				}
 
				Client.Connect( IP );
				NetworkStream stream = Client.GetStream();
				byte[] buffer = Encoding.ASCII.GetBytes( "#info " + GetRealName( NameBox.Text ) );
				stream.Write( buffer, 0, buffer.Length );
				stream.Flush();
				ChatForm Chat = new ChatForm( stream );
				Chat.Show();
				this.Hide();
			}
			catch( Exception ex )
			{
				MessageBox.Show( ex.ToString() );
			}
		}
 
		string GetRealName( string name )
		{
			WebClient wb = new WebClient();
			string source = wb.DownloadString( "http://www.itsmods.com/forum/User-" + name + ".html" );
			int title = source.IndexOf( "<title>" );
			wb.Dispose();
			return source.Substring( title + 30, name.Length ).Trim();
		}
 
		private bool Login( string User, string Password )
		{
			System.Collections.Specialized.NameValueCollection Data 
				= new System.Collections.Specialized.NameValueCollection();
			Data.Add( "username", User );
			Data.Add( "password", Password );
			Data.Add( "submit", "Login" );
			Data.Add( "action", "do_login" );
 
			WebClient wb = new WebClient();
			byte[] bytes = wb.UploadValues( "http://itsmods.com/forum/member.php", "POST", Data );
 
			if( System.Text.Encoding.ASCII.GetString( bytes ).Contains( "successfully" ) )
				return true;
 
			return false;
		}
	}
}

Full source code:

  BasicServer.rar (Size: 84.75 KB / Downloads: 214)


Please give some advice in case you know a better/faster way of doing this

pic:


edit: yes I know the maximum amount of clients is bullshit and doesn't do anything but I got bored so I didn't finish that

[Nekochan]

looks very cool

[OrangePL]

Good job @ieagle

[Arteq]

Nice one.

Spoiler (Click to View)

1.) create one at chatium.com
2.) make web-browser
3.) onFormLoad navigate to http://CHATNAME.chatium.com/full
4.) ????
5.) $PROFIT$

[iAegle]

Nice one.

Spoiler (Click to View)

1.) create one at chatium.com
2.) make web-browser
3.) onFormLoad navigate to http://CHATNAME.chatium.com/full
4.) ????
5.) $PROFIT$

This is not for actual use (unless you feel like using this instead of skype/msn/irc etc.). I just wanted to learn how to use simple network code.

[Arteq]

Nice one.

Spoiler (Click to View)

1.) create one at chatium.com
2.) make web-browser
3.) onFormLoad navigate to http://CHATNAME.chatium.com/full
4.) ????
5.) $PROFIT$

This is not for actual use (unless you feel like using this instead of skype/msn/irc etc.). I just wanted to learn how to use simple network code.

I said that "nice one" as i know that your work is much harder and idk if i can do same)) the thing you made is also a chat but it has another working system (much better than just web-chat) me just

[kokole]

thanks for your work

[cagako85]

I set to multiple start up projects give error 404