I decided that I've finally reached the point in my C# knowledge where I could attempt a very simplistic IRC console client. I'm not trying to reach a level to compete with mIRC or anything like that, this is just me trying to learn how sockets and network streams work and interrelate. And so far.. well, I can get it to connect to the IRC network and I can get it to join a channel but it won't display anything on the incoming side of things. I haven't really written the code for that yet, mainly because I'm not entirely sure how.
Er, well, let me say this instead. I know how to get a line from the stream and send it to the console:
Console.WriteLine(StreamReader.ReadLine());
But what I don't understand is how to make it display ALL of the incoming information from the server. IRC constantly sends information (whether it be people talking, ctcp, server messages, whatever) and I don't understand how to collect and display all of that information continiouslly.
Here's what I have so far. It's split into two files: Program.cs and IRC.cs.
Program.cs
Code:using System; using System.Collections.Generic; using System.Text; namespace IRCtesting { class Program { static void Main(string[] args) { System.Console.WriteLine("Starting the client..\n"); IRC irc; if (args.Length == 0) { // Create a new IRC connection using the default constructor irc = new IRC(); } else { // Code to seperate and get the arguments later irc = new IRC(); } while (irc.canQuit == false) { irc.getCommand(); } System.Console.WriteLine("Press any key to close the client...\n"); System.Console.ReadLine(); } } }
IRC.cs
Code:using System; using System.Collections.Generic; using System.Text; using System.Threading; using System.Net; using System.Net.Sockets; using System.IO; namespace IRCtesting { class IRC { #region variables // Public variables public bool canQuit = false; public bool connected = false; public static StreamWriter writer; public static StreamReader reader; // Private variables private int ircPort = 6667; private string ircServer = "irc.esper.net"; private string nickNameMain = "CSharpIRC"; private string nickNameBckup = "CSharpIRCbck"; private string user = "USER CSharp 1 * :Dont look at me !!!"; private string channel = ""; private TcpClient ircClient; private NetworkStream stream; private Thread pingSender; // Private constants private const string CRLF = "\r\n"; private const string PING = "PING :"; #endregion #region constructors //////////////////////////////////////////////// //////////////CONSTRUCTORS////////////////////// // There are six constructors which allow you // // to specify some or all the information // // necessary to connecting. // //////////////////////////////////////////////// public IRC() { // Connect to IRC connect(); } public IRC(string server) { ircServer = server; // Connect to IRC connect(); } public IRC(int port) { ircPort = port; } public IRC(string server, int port) { ircServer = server; ircPort = port; // Connect connect(); } public IRC(string server, int port, string mainNick) { ircServer = server; ircPort = port; nickNameMain = mainNick; } public IRC(string server, int port, string mainNick, string backupNick) { ircServer = server; ircPort = port; nickNameMain = mainNick; nickNameBckup = backupNick; // Connect to IRC using the settings connect(); } #endregion private void connect() { // Tell people we're going to connect System.Console.WriteLine("Connecting to " + ircServer + ":" + ircPort + " ...\n"); try { // Try to make a connection to the server ircClient = new TcpClient(ircServer, ircPort); stream = ircClient.GetStream(); reader = new StreamReader(stream); writer = new StreamWriter(stream); // Start up our ping handler PingControl(); // Send the ident information to the server (i.e. our user and who we are) writer.WriteLine(user); writer.Flush(); writer.WriteLine("NICK " + nickNameMain); writer.Flush(); // We're connected, so let's set our bool to true. connected = true; } catch (Exception e) { // Show the exception Console.WriteLine(e.ToString() + CRLF); // Sleep, before we try again Thread.Sleep(5000); connect(); } } private void quit() { // Message that we're quitting writer.WriteLine("QUIT "); writer.Flush(); // Exit out of the program. quit_program(); } private void quit(string message) { // Message that we're quitting writer.WriteLine("QUIT " + ":" + message); writer.Flush(); // Exit out of the program. quit_program(); } private void quit_program() { // Close everything down stream.Close(); writer.Close(); reader.Close(); ircClient.Close(); // Tell the console that we can quit and release control connected = false; canQuit = true; } // Join a channel, no key private void join(string chan) { if (channel == "") { channel = chan; writer.WriteLine("JOIN " + channel); writer.Flush(); } else { Console.WriteLine("This client only supports one channel right now.\n"); } } // Join a channel with a key private void join(string channel, string key) { } // Send something to the channel private void sendToChannel(string message) { writer.WriteLine("PRIVMSG " + channel + " :" + message); writer.Flush(); } //////////////////////////////////////////////// ///////////////COMMAND PARSER/////////////////// // The command parser takes the incoming text // // from the console and splits it up into // // tokens as well as determines what command // // has been used and what function should be // // called. // //////////////////////////////////////////////// public void getCommand() { // Get the command string from the console string rawCommandString = Console.ReadLine(); // Break the command into their tokenized parts so we can determine what to do string[] commandString; commandString = rawCommandString.Split(new char[] { ' ' }); // Get the first element of the command string and convert it to upper case string command = commandString[0].ToString(); command = command.ToUpper(); /////////////////////////////////////////////////// // The QUIT command. Used to disconnect from the// // server. It'll also cause our console to stop.// /////////////////////////////////////////////////// if ((command == "QUIT") || (command == "/QUIT")) { // We need to check to see if the person has typed a quit message int commandLength = commandString.Length; if (commandLength >= 2) { // Determine what the message is. commandLength = commandString.Length - 1; string message = ""; for (int i = 1; i <= commandLength; i++) { message = message + commandString[i] + " "; } // Let's quit with our message quit(message); } else quit(); // Quit with a default message of your nick. } /////////////////////////////////////////////////// // The JOIN command. Used to join an IRC channel// // and may have a key (if the channel is locked) // /////////////////////////////////////////////////// if (((command == "JOIN") || (command == "/JOIN") || (command == "/J"))) { // Set our channel string chan = commandString[1].ToString(); // Does the channel have the necessary #? if (!chan.StartsWith("#")) { // We'll add it here. chan = "#" + commandString[1].ToString(); } // Does this join command have a key for the channel? // Check for the max number of words in the array first. int commandLength = commandString.Length; if (commandLength >= 3) { // Is the next word a space or null? if (commandString[2].ToString() != "") { // We have a key! Let's get the key and join the channel. string key = commandString[2].ToString(); join(chan, key); } } // No, it doesn't, so just join a regular channel else join(chan); } /////////////////////////////////////////////////// // The "Say" command to send a message to the // // active channel. // /////////////////////////////////////////////////// if ((command == "SAY") || (command == "/SAY")) { if (channel != "") { // Determine what the message is. int commandLength = commandString.Length -1; string message = ""; for (int i = 1; i <= commandLength; i++) { message = message + commandString[i] + " "; } // Send the message to the command sendToChannel(message); } else { Console.WriteLine("You must first join a channel.\n"); } } } //////////////////////////////////////////////// ////////////////PING CONROL///////////////////// //////////////////////////////////////////////// // PING control is a set of two functions that// // will ping the server every 15 seconds on a // // seperate thread until we are no longer // // connected to the server. // //////////////////////////////////////////////// private void PingControl() { // Start a new thread for the Ping Control pingSender = new Thread (new ThreadStart(PingRun)); pingSender.Start(); // Begin running the control PingRun(); } // Send PING to irc server every 15 seconds private void PingRun() { // Is the client still running? If so, we need to ping the server while ((canQuit == false) && (connected == true)) { writer.WriteLine(PING + ircServer); writer.Flush(); Thread.Sleep(15000); } } } }
I should add that once I get the incoming information to display I plan to scrap the console version and start on a GUI version. But I really need some help on learning how to make it display everything. Even some basic ideas and concepts will help me out.
Thanks guys.
