IRC Server

This project is an implementation of an IRC (Internet Relay Chat) server in C++. It allows multiple clients to connect, communicate in channels, and execute various IRC commands.

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Features

• Socket Programming: Uses sockets and epoll for handling multiple clients simultaneously.
• Client Authentication: Clients authenticate using a password, username, and nickname.
• Channel Management: Clients can create, join, leave, and manage channels.
• IRC Commands: Supports commands like JOIN, NICK, PRIVMSG, KICK, TOPIC, and more.
• Bot Functionality: Includes a bot that provides jokes, the current date, and the number of connected clients.

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Key Components

• Server (Server.hpp, Server.cpp): Manages client connections, channels, and command handling.
• Client (Client.hpp, Client.cpp): Represents a connected user and manages their state.
• Channel (Channel.hpp, Channel.cpp): Represents an IRC channel and manages its members, operators, and modes.
• IRCCommandHandler (IRCCommandHandler.hpp, IRCCommandHandler.cpp): Processes and executes IRC commands.
• Commands (src/commands/): Implements individual IRC commands like JOIN, NICK, PRIVMSG, etc.
• Utilities (Utilities.hpp, Utilities.cpp): Provides helper functions like string manipulation.

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Supported Commands

Command	Description
PASS	Authenticate the client with a password.
NICK	Set or change the client's nickname.
USER	Set the client's username.
JOIN	Join a channel or create one if it doesn't exist.
PART	Leave a channel.
PRIVMSG	Send a private message to a user or channel.
TOPIC	Get or set the topic of a channel.
KICK	Remove a user from a channel.
MODE	Manage channel modes (e.g., invite-only, topic-protected).
INVITE	Invite a user to a channel.
WHO	List users in a channel.
QUIT	Disconnect from the server.
BOT	Interact with the bot (JOKE, DATE, CLIENTS).

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How to Build and Run

Build

Compile the project using the Makefile:

make

Run

Start the server with a port and password:

./ircserv <port> <password>

Connect a Client

You can connect to the server using an IRC client like netcat, irssi, or a custom client.

Example using netcat:

nc localhost <port>

Authenticate the client:

PASS <password>
USER <username> 0 * <realname>
NICK <nickname>

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Example Workflow

1. Start the server:

   ./ircserv 6667 default

2. Connect a client using netcat:

   nc localhost 6667

3. Authenticate the client:

   PASS default
   USER myuser 0 0 0
   NICK mynick
   

4. Join a channel:

   JOIN #mychannel
   

5. Send a message:

   PRIVMSG #mychannel :Hello, world!
   

6. Use the bot:

   BOT JOKE
   

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Bot Commands

Command	Description
JOKE	Sends a random joke.
DATE	Sends the current date and time.
CLIENTS	Sends the number of connected clients.

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