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/*
Description: Allows calling client to change their current nickname
*/
// module support functions
const verifyNickname = (nick) => /^[a-zA-Z0-9_]{1,24}$/.test(nick);
// module main
export async function run(core, server, socket, data) {
if (server.police.frisk(socket.address, 6)) {
return server.reply({
cmd: 'warn',
text: 'You are changing nicknames too fast. Wait a moment before trying again.',
}, socket);
}
// verify user data is string
if (typeof data.nick !== 'string') {
return true;
}
// make sure requested nickname meets standards
const newNick = data.nick.trim();
if (!verifyNickname(newNick)) {
return server.reply({
cmd: 'warn',
text: 'Nickname must consist of up to 24 letters, numbers, and underscores',
}, socket);
}
// prevent admin impersonation
// TODO: prevent mod impersonation
if (newNick.toLowerCase() === core.config.adminName.toLowerCase()) {
server.police.frisk(socket.address, 4);
return server.reply({
cmd: 'warn',
text: 'You are not the admin, liar!',
}, socket);
}
// find any sockets that have the same nickname
const userExists = server.findSockets({
channel: socket.channel,
nick: (targetNick) => targetNick.toLowerCase() === newNick.toLowerCase(),
});
// return error if found
if (userExists.length > 0) {
// That nickname is already in that channel
return server.reply({
cmd: 'warn',
text: 'Nickname taken',
}, socket);
}
// build join and leave notices
// TODO: this is a legacy client holdover, name changes in the future will
// have thieir own event
const leaveNotice = {
cmd: 'onlineRemove',
nick: socket.nick,
};
const joinNotice = {
cmd: 'onlineAdd',
nick: newNick,
trip: socket.trip || 'null',
hash: socket.hash,
};
// broadcast remove event and join event with new name, this is to support legacy clients and bots
server.broadcast(leaveNotice, { channel: socket.channel });
server.broadcast(joinNotice, { channel: socket.channel });
// notify channel that the user has changed their name
server.broadcast({
cmd: 'info',
text: `${socket.nick} is now ${newNick}`,
}, { channel: socket.channel });
// commit change to nickname
socket.nick = newNick;
return true;
}
// module hook functions
export function initHooks(server) {
server.registerHook('in', 'chat', this.nickCheck.bind(this), 29);
}
// hooks chat commands checking for /nick
export function nickCheck(core, server, socket, payload) {
if (typeof payload.text !== 'string') {
return false;
}
if (payload.text.startsWith('/nick')) {
const input = payload.text.split(' ');
// If there is no nickname target parameter
if (input[1] === undefined) {
server.reply({
cmd: 'warn',
text: 'Refer to `/help nick` for instructions on how to use this command.',
}, socket);
return false;
}
const newNick = input[1].replace(/@/g, '');
this.run(core, server, socket, {
cmd: 'changenick',
nick: newNick,
});
return false;
}
return payload;
}
export const requiredData = ['nick'];
export const info = {
name: 'changenick',
description: 'This will change your current connections nickname',
usage: `
API: { cmd: 'changenick', nick: '<new nickname>' }
Text: /nick <new nickname>`,
};
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