This project is about creating our own IRC server.
Internet Relay Chat (IRC) is a text-based chat system for instant messaging; designed for group communication in channels, but also for one-to-one communication via private messages.
Clone the repo :
git clone https://github.com/justinebadia/FT_IRC.git
Do makeand then run :
./ircserv 6667 pass
Our server listen for incoming connections on port 6667. The second argument is the password that each client need to connect.
To ensure that our server correctly process everything that you send to it, you can use netcat command.
The basic syntax for nc command is :
nc [<options>] <host> <port>
So, you can type:
nc -C 127.0.0.1 6667
The -C option send CRLF as line-ending. You can also type control+v followed by control+m to insert a carriage-return.
First, you have to register as a user, so you'll need to enter the correct password, and the user and nick commands.
PASS pass
USER user * * :realname
NICK nickname
Once you're register, you'll receive a welcome reply :
Welcome to the Internet Relay Network [email protected]
| Commands | Description |
|---|---|
| Connection registration | |
| PASS <password> | - Must be send before the NICK and USER commands. |
| NICK | NICK <nickname> - Allows a client to change their IRC nickname. |
| USER | USER <user> <mode> <unused> <realname> - Is used at the beginning of a connection. |
| OPER | OPER <username> <password> - Authenticates a user as an IRC operator on that server. |
| QUIT | QUIT [<message>] - Disconnects the user from the server. |
| SQUIT | SQUIT <server> <comment> - Causes <server> to quit the network. |
| Channel operations | |
| JOIN | JOIN <channels> [<keys>] - Makes the client join the channels in the comma-separated list <channels>, specifying the passwords, if needed, in the comma-separated list <keys>. If the channel(s) do not exist then they will be created. |
| PART | PART <channels> [<message>] - Causes a user to leave the channels in the comma-separated list <channels>. |
| MODE | MODE <channel> <flags> [<args>] - Used to set channel modes. |
| TOPIC | TOPIC [] - Allows the client to query or set the channel topic on <channel>. If <topic> is given, it sets the channel topic to <topic>. |
| NAMES | NAMES [<channels>] - Returns a list of who is on the comma-separated list of <channels>, by channel name. If <channels> is omitted, all users are shown. |
| LIST | LIST <channels> - Lists all channels on the server. |
| INVITE | INVITE <nickname>\ <channel> - Invites <nickname> to the channel <channel>. On our server, <channel> has to be in mode +i, so only channel operators may invite other clients. |
| KICK | KICK <channel> <client> :[<message>] - This command may only be issued by channel operators. It forcibly removes <client> from <channel>. |
| Sending messages | |
| PRIVMSG | PRIVMSG <target> :<message> - Sends <message> to <msgtarget>, which is usually a user or channel. |
| NOTICE | NOTICE <target> <message> - Works similarly to PRIVMSG, except automatic replies must never be sent in reply to NOTICE messages. |
| User queries | |
| WHO | WHO <name> - Returns a list of users who match <nickname>. |
| WHOIS | WHOIS <nickname> - Returns information about <nickname>. |
| Miscellaneous messages | |
| KILL | KILL - This command may only be issued by IRC operators. It forcibly removes <client> from the network. |
| PING | PING - Tests the presence of a connection. PING message results in a PONG reply. |
| ERROR | ERROR - It is used before terminating client connections. |
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