Merge pull request 'Topic cmd' (#39) from topic-cmd into main

Reviewed-on: #39

Channel/Channel.cpp

@@ -33,6 +33,9 @@ Channel& Channel::operator=(const Channel &other)
         name_ = other.name_;
 		members_ = other.members_;
 		operators_ = other.operators_;
+        topic_ = other.topic_;
+        isInviteOnly_ = other.isInviteOnly_;
+        invitedMembers_ = other.invitedMembers_;
     }
     // std::cout << "Channel copy assignment operator called" << std::endl;
     return (*this);
@@ -41,7 +44,7 @@ Channel& Channel::operator=(const Channel &other)
 
 // Constructor with name
 
-Channel::Channel(std::string &name) : name_(name) { /* std::cout << "Channel with name constructor called" << std::endl; */ }
+Channel::Channel(std::string &name) : name_(name), isInviteOnly_(false) { /* std::cout << "Channel with name constructor called" << std::endl; */ }
 
 
 // Getters
@@ -53,7 +56,12 @@ const	std::set<int> &Channel::getMembers() const
 }
 
 // Members
-void	Channel::addMember(int fd)			{ this->members_.insert(fd);				}
+void	Channel::addMember(int fd)
+{
+    invitedMembers_.erase(fd);
+    this->members_.insert(fd);
+}
+
 void	Channel::removeMember(int fd)			{ this->members_.erase(fd);					}
 bool	Channel::hasMember(int fd) const		{ return (this->members_.count(fd) > 0);	}
 
@@ -62,14 +70,48 @@ void	Channel::addOperator(int fd)		{ this->operators_.insert(fd);				}
 void	Channel::removeOperator(int fd)		{ this->operators_.erase(fd);				}
 bool	Channel::hasOperator(int fd) const	{ return (this->operators_.count(fd) > 0);	}
 
-void	Channel::broadcast(const std::string &msg, std::map<int, User> &clients, int excludedFd)
+void	Channel::broadcast(const std::string &msg, const std::map<int, User> &clients, int excludedFd)
 {
     for (std::set<int>::iterator member = members_.begin(); member != members_.end(); member++)
     {
         if ((*member) == excludedFd) continue;
-        std::map<int, User>::iterator user = clients.find(*member);
+        std::map<int, User>::const_iterator user = clients.find(*member);
         
         if (user != clients.end())
             user->second.send(msg);
     }
 }
+
+// Topic
+
+void			Channel::setTopic(std::string content) { this->topic_ = content; }
+std::string		Channel::getTopic() { return (this->topic_); }
+
+
+// Mode
+
+void	Channel::setMode(std::string& mode, std::string& args)
+{
+	bool value;
+	if (mode[0] == '+')
+		value = true;
+	else
+		value = false;
+
+	// very simple to test
+	if (mode[1] == 'i')
+	{
+		isInviteOnly_ = value;
+		return ;
+	}
+
+	(void) args;
+}
+
+void	Channel::inviteMember(const User& client)
+{
+	invitedMembers_.insert(client.getFd());
+}
+
+bool	Channel::isInviteOnly() const { return isInviteOnly_; }
+bool	Channel::isInvited(int fd) const { return invitedMembers_.count(fd) > 0; }

Channel/Channel.hpp

@@ -24,9 +24,15 @@ class Channel
 {
     private:
         std::string				name_;
-        std::set<int>			members_;
+
+		std::set<int>			members_;
 		std::set<int>			operators_;
 
+		std::string				topic_;
+
+		bool					isInviteOnly_;
+		std::set<int>			invitedMembers_;
+
     public:
         Channel();
 		Channel(std::string &name);
@@ -39,6 +45,9 @@ class Channel
 		std::string		getName() const;
 		const	std::set<int> &getMembers() const;
 
+		// Topic
+		void			setTopic(std::string content);
+		std::string		getTopic();
 
 		// Users
 		void			addMember(int fd);
@@ -50,8 +59,14 @@ class Channel
 		void			removeOperator(int fd);
 		bool			hasOperator(int fd) const;
 
-		void			broadcast(const std::string &msg, std::map<int, User> &clients, int excludedFd);
+		void			broadcast(const std::string &msg, const std::map<int, User> &clients, int excludedFd);
 
+		// modes
+		void			setMode(std::string& mode, std::string& args);
+
+		void			inviteMember(const User& client);
+		bool			isInviteOnly() const;
+		bool			isInvited(int fd) const;
 
 };
 

Makefile

@@ -4,6 +4,8 @@ SRC = main.cpp Server/Server.cpp User/User.cpp \
 		Channel/Channel.cpp \
 		cmds/pass.cpp cmds/nick.cpp cmds/user.cpp \
 		cmds/join.cpp cmds/privmsg.cpp cmds/quit.cpp \
+		cmds/mode.cpp cmds/invite.cpp cmds/kick.cpp \
+		cmds/topic.cpp
 
 HEADERS = Server/Server.hpp User/User.hpp
 

Server/Server.cpp

@@ -6,7 +6,7 @@
 /*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/05/06 17:19:12 by iherman-          #+#    #+#             */
-/*   Updated: 2026/05/16 11:31:25 by aortigos         ###   ########.fr       */
+/*   Updated: 2026/05/25 10:15:18 by aortigos         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -118,7 +118,11 @@ Server::Server(int port, const std::string& password) :
 	commands_["JOIN"] = &Server::join_cmd;
 	commands_["QUIT"] = &Server::quit_cmd;
 	commands_["PRIVMSG"] = &Server::privmsg_cmd;
-
+	commands_["MODE"] = & Server::mode_cmd;
+	commands_["INVITE"] = &Server::invite_cmd;
+	commands_["KICK"] = &Server::kick_cmd;
+	commands_["TOPIC"] = &Server::topic_cmd;
+	
 	std::cout << "Server port: " << port_
 		<< "\nServer Password: " << password_
 		<< std::endl;
@@ -233,6 +237,8 @@ std::vector<struct pollfd>::iterator	Server::removeClient(std::vector<struct pol
 
 	std::cout << "Client with fd: " << client->fd << " disconnected " << std::endl;
 
+	// should also remove client from all channels its in
+
 	clients_.erase(client->fd);
 	return (sockets_.erase(client));
 }

Server/Server.hpp

@@ -6,7 +6,7 @@
 /*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/05/06 17:18:11 by iherman-          #+#    #+#             */
-/*   Updated: 2026/05/16 11:45:11 by aortigos         ###   ########.fr       */
+/*   Updated: 2026/05/25 10:15:08 by aortigos         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -67,7 +67,10 @@ class Server
 		void	join_cmd(User &client, std::istringstream &ss);
 		void	privmsg_cmd(User &client, std::istringstream &ss);
 		void	quit_cmd(User &client, std::istringstream &ss);
-
+		void	mode_cmd(User &client, std::istringstream &ss);
+		void	invite_cmd(User &client, std::istringstream &ss);
+		void	kick_cmd(User &client, std::istringstream &ss);
+		void	topic_cmd(User &client, std::istringstream &ss);
 
 	public:
 		Server();

User/User.cpp

@@ -55,7 +55,7 @@ User::~User()
 }
 
 
-void    User::send(const std::string &msg)
+void    User::send(const std::string &msg) const
 {
     ::send(fd, msg.c_str(), msg.size(), 0);
 }

User/User.hpp

@@ -38,7 +38,7 @@ class User
         User& operator=(const User &other);
         ~User();
 
-        void	send(const std::string &msg);
+        void	send(const std::string &msg) const;
 
         // Channels
         void		joinChannel(const std::string &channel);

cmds/invite.cpp

@@ -0,0 +1,72 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   invclient_ite.cpp                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: iherman- <iherman-@student.42malaga.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/05/23 20:22:46 by iherman-          #+#    #+#             */
+/*   Updated: 2026/05/23 21:14:14 by iherman-         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "../Server/Server.hpp"
+
+void	Server::invite_cmd(User &client, std::istringstream &ss)
+{
+	std::string	target;
+	std::string	channel;
+
+	ss >> target >> channel;
+
+	if (!client.isRegistered()) return (client.send(":" SERVER_NAME " 451 * :You have not registered\r\n"));
+
+	if (target.empty() || channel.empty())
+	{
+		return client.send(":" SERVER_NAME " 461 * INVITE :Not enough parameters\r\n");
+	}
+
+	// verify target exists
+	std::map<int, User>::iterator	client_it = clients_.begin();
+	for (; client_it != clients_.end(); ++client_it)
+	{
+		if (client_it->second.getNick() == target)
+			break;
+	}
+	if (client_it == clients_.end())
+	{
+		client.send(":" SERVER_NAME " 401 " + target + " :No such nick\r\n");
+		return ;
+	}
+	
+	// verify channel exist & user is on channel
+	std::map<std::string, Channel>::iterator	channel_it = channels_.find(channel);
+	if (channel_it == channels_.end())
+	{
+		client.send(":" SERVER_NAME " 401 " + target + " :No such channel\r\n");
+		return ;
+	}
+
+	if (!channel_it->second.hasMember(client.getFd()))
+	{
+		client.send(":" SERVER_NAME " 442 " + channel + " :You are not on that channel\r\n");
+		return ;
+	}
+
+	if (channel_it->second.hasMember(client_it->second.getFd()))
+	{
+		client.send(":" SERVER_NAME " 443 " + channel + " :is already on channel\r\n");
+		return ;
+	}
+
+	if (channel_it->second.isInviteOnly() && !channel_it->second.hasOperator(client.getFd()))
+	{
+		client.send(":" SERVER_NAME " 482 " + channel + ":You're not channel operator\r\n");
+		return ;
+	}
+
+	client_it->second.send(":" + client.getNick() + "!" + client.getUsername() + "@localhost INVITE " + client_it->second.getNick() + " :" + channel_it->second.getName());
+	client.send(std::string(":") + SERVER_NAME " 341 " + client.getNick() + " " + client_it->second.getNick() + " " + channel_it->second.getName());
+	channel_it->second.inviteMember(client_it->second);
+}
+

cmds/join.cpp

@@ -3,10 +3,10 @@
 /*                                                        :::      ::::::::   */
 /*   join.cpp                                           :+:      :+:    :+:   */
 /*                                                    +:+ +:+         +:+     */
-/*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
+/*   By: iherman- <iherman-@student.42malaga.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/05/15 15:35:16 by aortigos          #+#    #+#             */
-/*   Updated: 2026/05/16 17:04:29 by aortigos         ###   ########.fr       */
+/*   Updated: 2026/05/23 18:32:37 by iherman-         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -23,6 +23,7 @@ void	Server::join_cmd(User &client, std::istringstream &ss)
 	
 	std::map<std::string, Channel>::iterator it = channels_.find(args);
 
+	// creates channel
 	if (it == channels_.end())
 	{
 		channels_[args] = Channel(args);
@@ -51,29 +52,37 @@ void	Server::join_cmd(User &client, std::istringstream &ss)
 	else
 	{
 		if (it->second.hasMember(client.getFd()))
-			client.send(":" SERVER_NAME " 443 " + client.getNick() + " " + args + " :is already on channel\r\n");
-		else
 		{
-			client.joinChannel(it->first);
+			client.send(":" SERVER_NAME " 443 " + client.getNick() + " " + args + " :is already on channel\r\n");
-			it->second.addMember(client.getFd());
+			return ;			
-			std::string	joinMsg = ":" + client.getNick() + "!" + client.getUsername() + "@localhost JOIN " + args + "\r\n";
-			channels_[args].broadcast(joinMsg, clients_, -1);
-
-
-			std::string namesList = ":" SERVER_NAME " 353 " + client.getNick() + " = " + args + " :";
-			const std::set<int> &members = channels_[args].getMembers();
-			for (std::set<int>::const_iterator m = members.begin(); m != members.end(); m++)
-			{
-				std::map<int, User>::iterator u = clients_.find(*m);
-				if (u != clients_.end())
-				{
-					if (channels_[args].hasOperator(*m))
-						namesList += "@";
-					namesList += u->second.getNick() + " ";
-				}
-			}
-			client.send(namesList + "\r\n");
-			client.send(":" SERVER_NAME " 366 " + client.getNick() + " " + args + " :End of /NAMES list\r\n");
 		}
+
+		if (it->second.isInviteOnly() && !it->second.isInvited(client.getFd()))
+		{
+			client.send(":" SERVER_NAME " 473 " + client.getNick() + " " + args + " :Cannot join channel (+i)\r\n");
+			return ;			
+		}
+
+		it->second.addMember(client.getFd());
+
+		client.joinChannel(it->first);
+
+		std::string	joinMsg = ":" + client.getNick() + "!" + client.getUsername() + "@localhost JOIN " + args + "\r\n";
+		channels_[args].broadcast(joinMsg, clients_, -1);
+
+		std::string namesList = ":" SERVER_NAME " 353 " + client.getNick() + " = " + args + " :";
+		const std::set<int> &members = channels_[args].getMembers();
+		for (std::set<int>::const_iterator m = members.begin(); m != members.end(); m++)
+		{
+			std::map<int, User>::iterator u = clients_.find(*m);
+			if (u != clients_.end())
+			{
+				if (channels_[args].hasOperator(*m))
+					namesList += "@";
+				namesList += u->second.getNick() + " ";
+			}
+		}
+		client.send(namesList + "\r\n");
+		client.send(":" SERVER_NAME " 366 " + client.getNick() + " " + args + " :End of /NAMES list\r\n");
 	}
 }

cmds/kick.cpp

@@ -0,0 +1,58 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   kick.cpp                                           :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/05/25 09:27:35 by aortigos          #+#    #+#             */
+/*   Updated: 2026/05/25 09:52:27 by aortigos         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "../Server/Server.hpp"
+
+void	Server::kick_cmd(User &client, std::istringstream &ss)
+{
+	std::string	channel;
+	std::string user;
+	std::string	reason;
+
+	ss >> channel >> user;
+	getline(ss, reason);
+
+	if (!client.isRegistered()) return (client.send(":" SERVER_NAME " 451 " + client.getNick() + " :You have not registered\r\n"));
+
+	if (channel.empty() || user.empty())
+		return (client.send(":" SERVER_NAME " 461 " + client.getNick() + " KICK :not enough parameters\r\n"));
+	if (!reason.empty() && reason[0] == ' ')
+		reason = reason.substr(1);
+	if (!reason.empty() && reason[0] == ':')
+		reason = reason.substr(1);
+	if (reason.empty()) reason = "Kicked";
+	
+	if (channel[0] != '#') return (client.send(""));
+
+	std::map<std::string, Channel>::iterator it_channels = channels_.find(channel);
+
+	if (it_channels == channels_.end())
+		return (client.send(":" SERVER_NAME " 403 " + client.getNick() + " " + channel + " :No such channel\r\n"));
+	if (!it_channels->second.hasOperator(client.getFd()))
+		return (client.send(":" SERVER_NAME " 482 " + client.getNick() + " " + channel + " :You're not channel operator\r\n"));
+
+	int userId = -1;
+	for (std::map<int, User>::iterator it_clients = clients_.begin(); it_clients != clients_.end(); it_clients++)
+	{
+		if (it_clients->second.getNick() == user)
+			userId = it_clients->second.getFd();
+	}
+	if (userId == -1)
+		return (client.send(":" SERVER_NAME " 401 " + client.getNick() + " " + user + " :No such nick\r\n"));
+	if (!it_channels->second.hasMember(userId))
+		return (client.send(":" SERVER_NAME " 441 " + client.getNick() + " " + user + " " + channel + " :They aren't on that channel\r\n"));
+	
+	it_channels->second.broadcast(":" + client.getNick() + "!" + client.getUsername() + "@localhost KICK " + channel + " " + user + " :" + reason + "\r\n", clients_, -1);
+	clients_[userId].leaveChannel(channel);
+	it_channels->second.removeMember(userId);
+
+}

cmds/mode.cpp

@@ -0,0 +1,41 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   mode.cpp                                           :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: iherman- <iherman-@student.42malaga.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/05/23 17:15:27 by iherman-          #+#    #+#             */
+/*   Updated: 2026/05/23 20:25:02 by iherman-         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "../Server/Server.hpp"
+
+void	Server::mode_cmd(User &client, std::istringstream &ss)
+{
+	std::string	target;
+	std::string	mode;
+	std::string	args;
+
+	ss >> target >> mode;
+	std::getline(ss, args); // might include space in channel name, need to fix
+
+	if (!client.isRegistered()) return (client.send(":" SERVER_NAME " 451 * :You have not registered\r\n"));
+	if (target.empty() || mode.empty()) return (client.send(":" SERVER_NAME " 461 " + client.getNick() + " MODE :Not enough parameters\r\n"));
+
+	std::map<std::string, Channel>::iterator	channel = channels_.find(target);
+	if (channel == channels_.end())
+	{
+		client.send(":" SERVER_NAME " 403 " + client.getNick() + target + ":No such channel\r\n");
+		return ;
+	}
+
+	if (!channel->second.hasOperator(client.getFd()))
+	{
+		client.send(std::string(":") + SERVER_NAME + " 482 " + client.getNick() + " " + channel->second.getName() + " :You're not channel operator\r\n");
+		return ;
+	}
+
+	channel->second.setMode(mode, args); // args should prob be a stringstream :( 
+}

cmds/privmsg.cpp

@@ -6,16 +6,12 @@
 /*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/05/15 15:35:16 by aortigos          #+#    #+#             */
-/*   Updated: 2026/05/16 11:28:47 by aortigos         ###   ########.fr       */
+/*   Updated: 2026/05/25 10:02:13 by aortigos         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
-
 #include "../Server/Server.hpp"
 
-
-// Test function, need to change all the error messages
-
 void	Server::privmsg_cmd(User &client, std::istringstream &ss)
 {
 	std::string	channel;
@@ -26,16 +22,31 @@ void	Server::privmsg_cmd(User &client, std::istringstream &ss)
 
 	if (!client.isRegistered()) return (client.send(":" SERVER_NAME " 451 " + client.getNick() + " :You have not registered\r\n"));
 	
-	std::map<std::string, Channel>::iterator it = channels_.find(channel);
+	if (channel.empty())
+		return (client.send(":" SERVER_NAME " 411 " + client.getNick() + " :No recipient given (PRIVMSG)\r\n"));
 
-	if (it == channels_.end())
-		return (client.send(":" SERVER_NAME " 403 " + client.getNick() + " " + channel + " :No such channel\r\n"));
-	if (!it->second.hasMember(client.getFd()))
-		return (client.send(":" SERVER_NAME " 404 " + client.getNick() + " " + channel + " :Cannot send to channel\r\n"));
 	if (message.empty()) return (client.send(":" SERVER_NAME " 412 " + client.getNick() + " :No text to send\r\n"));
+
 	if (message[0] == ' ')
 		message = message.substr(1);
 	
-	std::string	msg = ":" + client.getNick() + "!" + client.getUsername() + "@localhost PRIVMSG " + channel + " :" + message + "\r\n";
+	if (channel[0] == '#')
-	return (it->second.broadcast(msg, clients_, client.getFd()));
+	{
+		std::map<std::string, Channel>::iterator it = channels_.find(channel);
+
+		if (it == channels_.end())
+			return (client.send(":" SERVER_NAME " 403 " + client.getNick() + " " + channel + " :No such channel\r\n"));
+		if (!it->second.hasMember(client.getFd()))
+			return (client.send(":" SERVER_NAME " 404 " + client.getNick() + " " + channel + " :Cannot send to channel\r\n"));
+		
+		std::string	msg = ":" + client.getNick() + "!" + client.getUsername() + "@localhost PRIVMSG " + channel + " :" + message + "\r\n";
+		it->second.broadcast(msg, clients_, client.getFd());
+	} else  {
+		for(std::map<int, User>::iterator it = clients_.begin(); it != clients_.end(); it++)
+		{
+			if (it->second.getNick() == channel)
+				return (it->second.send(":" + client.getNick() + "!" + client.getUsername() + "@localhost PRIVMSG " + channel + " :" + message + "\r\n"));
+		}
+		client.send(":" SERVER_NAME " 401 " + client.getNick() + " " + channel + " :No such nick\r\n");
+	}
 }

cmds/topic.cpp

@@ -0,0 +1,51 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   topic.cpp                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/05/25 10:04:16 by aortigos          #+#    #+#             */
+/*   Updated: 2026/05/25 10:19:53 by aortigos         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "../Server/Server.hpp"
+
+void	Server::topic_cmd(User &client, std::istringstream &ss)
+{
+	std::string	channel;
+	std::string	message;
+
+	ss >> channel;
+	getline(ss, message);
+
+	if (!client.isRegistered()) return (client.send(":" SERVER_NAME " 451 " + client.getNick() + " :You have not registered\r\n"));
+	
+
+	std::map<std::string, Channel>::iterator it = channels_.find(channel);
+
+	if (it == channels_.end())
+		return (client.send(":" SERVER_NAME " 403 " + client.getNick() + " " + channel + " :No such channel\r\n"));
+
+	if (!it->second.hasMember(client.getFd()))
+		return (client.send(":" SERVER_NAME " 404 " + client.getNick() + " " + channel + " :Cannot send to channel\r\n"));
+	
+	if (message.empty())
+	{
+		std::string res = it->second.getTopic();
+		if (res.empty())
+			return (client.send(":" SERVER_NAME " 331 " + client.getNick() + " " + channel + " :No topic is set\r\n"));
+		client.send(":" SERVER_NAME " 332 " + client.getNick() + " " + channel + " :" + res + "\r\n");
+	}
+	else 
+	{
+		if (!message.empty() && message[0] == ' ')
+			message = message.substr(1);
+		if (!it->second.hasOperator(client.getFd()))
+			return (client.send(":" SERVER_NAME " 482 " + client.getNick() + " " + channel + " :You're not channel operator\r\n"));
+		it->second.setTopic(message);
+		it->second.broadcast(":" + client.getNick() + "!" + client.getUsername() + "@localhost TOPIC " + channel + " :" + message + "\r\n", clients_, -1);
+	}
+
+}

tasks.md

@@ -42,14 +42,23 @@ Represents a connected IRC client.
 ### Third stage
 
 - [✓] Dispatcher (select function for each command)
-- [ ] Implement generic parser (extract command and pass args to command function)
+- [✓] Implement generic parser (extract command and pass args to command function)
-- [ ] Client has nickname and username
+- [✓] Client has nickname and username
-- [ ] PASS command for authenticate
+- [✓] PASS command for authenticate
 
 ### Fourth stage
 
--  [ ] Client can create/connect to channels
+- [✓] Client can create/connect to channels
-- [ ] JOIN command (user can create channel)
+- [✓] JOIN command (user can create channel)
-- [ ] PRIVMSG command (send message to a channel)
+- [✓] PRIVMSG command (send message to a channel)
+- [✓] QUIT command
+- [✓] PRIVMSG difference between channels (#) and users
+
+### Fifth stage
+
+- [ ] PART command (user leaves a channel)
+- [✓] KICK command (operator removes a user from channel)
+- [ ] INVITE command (operator invites a user to channel)
+- [ ] TOPIC command (view or set channel topic)
 
 *It will continue...*