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

Reviewed-on: #39

Channel/Channel.cpp

@@ -33,6 +33,7 @@ Channel& Channel::operator=(const Channel &other)
         name_ = other.name_;
 		members_ = other.members_;
 		operators_ = other.operators_;
+        topic_ = other.topic_;
         isInviteOnly_ = other.isInviteOnly_;
         invitedMembers_ = other.invitedMembers_;
     }
@@ -81,6 +82,14 @@ void	Channel::broadcast(const std::string &msg, const std::map<int, User> &clien
     }
 }
 
+// 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;

Channel/Channel.hpp

@@ -28,6 +28,8 @@ class Channel
 		std::set<int>			members_;
 		std::set<int>			operators_;
 
+		std::string				topic_;
+
 		bool					isInviteOnly_;
 		std::set<int>			invitedMembers_;
 
@@ -43,6 +45,10 @@ 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);
 		void			removeMember(int fd);

Makefile

@@ -5,6 +5,7 @@ SRC = main.cpp Server/Server.cpp User/User.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: 2026/05/25 09:46:07 by aortigos         ###   ########.fr       */
+/*   Updated: 2026/05/25 10:15:18 by aortigos         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -121,6 +121,7 @@ Server::Server(int port, const std::string& password) :
 	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_

Server/Server.hpp

@@ -6,7 +6,7 @@
 /*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/05/06 17:18:11 by iherman-          #+#    #+#             */
-/*   Updated: 2026/05/25 09:46:21 by aortigos         ###   ########.fr       */
+/*   Updated: 2026/05/25 10:15:08 by aortigos         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -70,6 +70,7 @@ class Server
 		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();

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);
+	}
+
+}