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<h1 class="page-title">Source: core/changenick.js</h1>
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<pre class="prettyprint source linenums"><code>/* eslint eqeqeq: 0 */
/**
* @author Marzavec ( https://github.com/marzavec )
* @summary Update nickname
* @version 1.0.0
* @description Allows calling client to change their current nickname
* @module changenick
*/
import {
verifyNickname,
getUserDetails,
} from '../utility/_UAC.js';
/**
* Executes when invoked by a remote client
* @param {Object} env - Enviroment object with references to core, server, socket &amp; payload
* @public
* @return {void}
*/
export async function run({
core, server, socket, payload,
}) {
const { channel } = socket;
if (server.police.frisk(socket, 6)) {
return server.reply({
cmd: 'warn', // @todo Add numeric error code as `id`
text: 'You are changing nicknames too fast. Wait a moment before trying again.',
channel, // @todo Multichannel
}, socket);
}
// verify user data is string
if (typeof payload.nick !== 'string') {
return true;
}
const previousNick = socket.nick;
// make sure requested nickname meets standards
const newNick = payload.nick.trim();
if (!verifyNickname(newNick)) {
return server.reply({
cmd: 'warn', // @todo Add numeric error code as `id`
text: 'Nickname must consist of up to 24 letters, numbers, and underscores',
channel, // @todo Multichannel
}, socket);
}
// prevent admin impersonation
// @todo prevent mod impersonation
if (newNick.toLowerCase() === core.config.adminName.toLowerCase()) {
server.police.frisk(socket, 4);
return server.reply({
cmd: 'warn', // @todo Add numeric error code as `id`
text: 'You are not the admin, liar!',
channel, // @todo Multichannel
}, socket);
}
if (newNick == previousNick) {
return server.reply({
cmd: 'warn', // @todo Add numeric error code as `id`
text: 'You already have that name',
channel, // @todo Multichannel
}, socket);
}
// find any sockets that have the same nickname
const userExists = server.findSockets({
channel,
nick: (targetNick) => targetNick.toLowerCase() === newNick.toLowerCase()
// Allow them to rename themselves to a different case
&amp;&amp; targetNick != previousNick,
});
// return error if found
if (userExists.length > 0) {
// That nickname is already in that channel
return server.reply({
cmd: 'warn', // @todo Add numeric error code as `id`
text: 'Nickname taken',
channel, // @todo Multichannel
}, socket);
}
// build update notice with new nickname
const updateNotice = {
...getUserDetails(socket),
...{
cmd: 'updateUser',
nick: newNick,
channel, // @todo Multichannel
},
};
// build join and leave notices for legacy clients
const leaveNotice = {
cmd: 'onlineRemove',
userid: socket.userid,
nick: socket.nick,
channel, // @todo Multichannel
};
const joinNotice = {
...getUserDetails(socket),
...{
cmd: 'onlineAdd',
nick: newNick,
channel, // @todo Multichannel
},
};
// gather channel peers
const peerList = server.findSockets({ channel });
for (let i = 0, l = peerList.length; i &lt; l; i += 1) {
if (peerList[i].hcProtocol === 1) {
// send join/leave to legacy clients
server.send(leaveNotice, peerList[i]);
server.send(joinNotice, peerList[i]);
} else {
// send update info
// @todo this should be sent to every channel the client is in (multichannel)
server.send(updateNotice, peerList[i]);
}
}
// notify channel that the user has changed their name
server.broadcast({
cmd: 'info',
text: `${socket.nick} is now ${newNick}`,
channel, // @todo Multichannel
}, { channel });
// commit change to nickname
socket.nick = newNick; // eslint-disable-line no-param-reassign
return true;
}
/**
* Automatically executes once after server is ready to register this modules hooks
* @param {Object} server - Reference to server enviroment object
* @public
* @return {void}
*/
export function initHooks(server) {
server.registerHook('in', 'chat', this.nickCheck.bind(this), 29);
}
/**
* Executes every time an incoming chat command is invoked
* @param {Object} env - Enviroment object with references to core, server, socket &amp; payload
* @public
* @return {{Object|boolean|string}} Object = same/altered payload,
* false = suppress action,
* string = error
*/
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]) {
server.reply({
cmd: 'warn', // @todo Add numeric error code as `id`
text: 'Refer to `/help nick` for instructions on how to use this command.',
channel: socket.channel, // @todo Multichannel
}, socket);
return false;
}
const newNick = input[1].replace(/@/g, '');
this.run({
core,
server,
socket,
payload: {
cmd: 'changenick',
nick: newNick,
},
});
return false;
}
return payload;
}
/**
* The following payload properties are required to invoke this module:
* "nick"
* @public
* @typedef {Array} changenick/requiredData
*/
export const requiredData = ['nick'];
/**
* Module meta information
* @public
* @typedef {Object} changenick/info
* @property {string} name - Module command name
* @property {string} category - Module category name
* @property {string} description - Information about module
* @property {string} usage - Information about module usage
*/
export const info = {
name: 'changenick',
category: 'core',
description: 'Allows calling client to change their current nickname',
usage: `
API: { cmd: 'changenick', nick: '&lt;new nickname>' }
Text: /nick &lt;new nickname>`,
};
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