2022-06-23 00:32:51 +08:00
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>JSDoc: Source: mod/dumb.js</title>
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<body>
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<div id="main">
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<h1 class="page-title">Source: mod/dumb.js</h1>
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<section>
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<article>
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<pre class="prettyprint source linenums"><code>/* eslint no-param-reassign: 0 */
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/* eslint no-multi-assign: 0 */
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/**
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* @author OpSimple ( https://github.com/OpSimple )
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* @summary Muzzle a user
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* @version 1.0.0
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* @description Globally shadow mute a connection. Optional allies array will see muted messages.
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* @module dumb
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*/
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import {
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isModerator,
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} from '../utility/_UAC.js';
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import {
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findUser,
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} from '../utility/_Channels.js';
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import {
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Errors,
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} from '../utility/_Constants.js';
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import {
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legacyInviteReply,
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legacyWhisperReply,
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} from '../utility/_LegacyFunctions.js';
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/**
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* Returns the channel that should be invited to.
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* @param {any} channel
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* @private
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* @return {string}
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*/
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export function getChannel(channel = undefined) {
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if (typeof channel === 'string') {
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return channel;
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}
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return Math.random().toString(36).substr(2, 8);
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}
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/**
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* Check and trim string provided by remote client
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* @param {string} text - Subject string
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* @private
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* @todo Move into utility module
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* @return {string|boolean}
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*/
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const parseText = (text) => {
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// verifies user input is text
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if (typeof text !== 'string') {
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return false;
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}
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let sanitizedText = text;
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// strip newlines from beginning and end
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sanitizedText = sanitizedText.replace(/^\s*\n|^\s+$|\n\s*$/g, '');
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// replace 3+ newlines with just 2 newlines
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sanitizedText = sanitizedText.replace(/\n{3,}/g, '\n\n');
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return sanitizedText;
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};
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/**
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* Automatically executes once after server is ready
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* @param {Object} core - Reference to core enviroment object
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* @public
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* @return {void}
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*/
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export function init(core) {
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if (typeof core.muzzledHashes === 'undefined') {
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core.muzzledHashes = {};
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}
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}
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/**
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* Executes when invoked by a remote client
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* @param {Object} env - Enviroment object with references to core, server, socket & payload
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* @public
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* @return {void}
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*/
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export async function run({
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core, server, socket, payload,
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}) {
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// increase rate limit chance and ignore if not admin or mod
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if (!isModerator(socket.level)) {
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2023-12-27 16:26:49 +08:00
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return server.police.frisk(socket, 10);
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2022-06-23 00:32:51 +08:00
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}
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// check user input
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if (socket.hcProtocol === 1) {
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if (typeof payload.nick !== 'string') {
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return true;
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}
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payload.channel = socket.channel;
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} else if (typeof payload.userid !== 'number') {
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return true;
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}
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// find target user
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const targetUser = findUser(server, payload);
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if (!targetUser) {
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return server.reply({
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cmd: 'warn',
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text: 'Could not find user in that channel',
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id: Errors.Global.UNKNOWN_USER,
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channel: socket.channel, // @todo Multichannel
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}, socket);
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}
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// likely dont need this, muting mods and admins is fine
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if (targetUser.level >= socket.level) {
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return server.reply({
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cmd: 'warn',
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text: 'This trick wont work on users of the same level',
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id: Errors.Global.PERMISSION,
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channel: socket.channel, // @todo Multichannel
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}, socket);
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}
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// store hash in mute list
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const record = core.muzzledHashes[targetUser.hash] = {
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dumb: true,
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};
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// store allies if needed
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if (payload.allies && Array.isArray(payload.allies)) {
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record.allies = payload.allies;
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}
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// notify mods
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server.broadcast({
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cmd: 'info',
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text: `${socket.nick}#${socket.trip} muzzled ${targetUser.nick} in ${payload.channel}, userhash: ${targetUser.hash}`,
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channel: false, // @todo Multichannel, false for global
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}, { level: isModerator });
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return true;
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}
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/**
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* Automatically executes once after server is ready to register this modules hooks
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* @param {Object} server - Reference to server enviroment object
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* @public
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* @return {void}
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*/
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export function initHooks(server) {
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server.registerHook('in', 'chat', this.chatCheck.bind(this), 10);
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server.registerHook('in', 'invite', this.inviteCheck.bind(this), 10);
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server.registerHook('in', 'whisper', this.whisperCheck.bind(this), 10);
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}
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/**
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* Executes every time an incoming chat command is invoked;
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* hook incoming chat commands, shadow-prevent chat if they are muzzled
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* @param {Object} env - Enviroment object with references to core, server, socket & payload
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* @public
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* @return {{Object|boolean|string}} Object = same/altered payload,
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* false = suppress action,
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* string = error
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*/
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export function chatCheck({
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core, server, socket, payload,
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}) {
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if (typeof payload.text !== 'string') {
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return false;
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}
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if (core.muzzledHashes[socket.hash]) {
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// build fake chat payload
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const outgoingPayload = {
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cmd: 'chat',
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nick: socket.nick, /* @legacy */
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uType: socket.uType, /* @legacy */
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userid: socket.userid,
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channel: socket.channel,
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text: payload.text,
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level: socket.level,
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};
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if (socket.trip) {
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outgoingPayload.trip = socket.trip;
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}
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if (socket.color) {
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outgoingPayload.color = socket.color;
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}
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// broadcast to any duplicate connections in channel
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server.broadcast(outgoingPayload, { channel: socket.channel, hash: socket.hash });
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// broadcast to allies, if any
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if (core.muzzledHashes[socket.hash].allies) {
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server.broadcast(
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outgoingPayload,
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{
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channel: socket.channel,
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nick: core.muzzledHashes[socket.hash].allies,
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},
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);
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}
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/**
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* Blanket "spam" protection.
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* May expose the ratelimiting lines from `chat` and use that
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* @todo one day #lazydev
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*/
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2023-12-27 16:26:49 +08:00
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server.police.frisk(socket, 9);
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2022-06-23 00:32:51 +08:00
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return false;
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}
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return payload;
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}
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/**
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* Executes every time an incoming chat command is invoked;
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* shadow-prevent all invites from muzzled users
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* @param {Object} env - Enviroment object with references to core, server, socket & payload
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* @public
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* @return {{Object|boolean|string}} Object = same/altered payload,
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* false = suppress action,
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* string = error
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*/
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export function inviteCheck({
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core, server, socket, payload,
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}) {
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if (core.muzzledHashes[socket.hash]) {
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// check for spam
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2023-12-27 16:26:49 +08:00
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if (server.police.frisk(socket, 2)) {
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2022-06-23 00:32:51 +08:00
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return server.reply({
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cmd: 'warn',
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text: 'You are sending invites too fast. Wait a moment before trying again.',
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id: Errors.Invite.RATELIMIT,
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channel: socket.channel, // @todo Multichannel
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}, socket);
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}
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// verify user input
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// if this is a legacy client add missing params to payload
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if (socket.hcProtocol === 1) {
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if (typeof socket.channel === 'undefined' || typeof payload.nick !== 'string') {
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return true;
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}
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payload.channel = socket.channel; // eslint-disable-line no-param-reassign
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} else if (typeof payload.userid !== 'number' || typeof payload.channel !== 'string') {
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return true;
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}
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// @todo Verify this socket is part of payload.channel - multichannel patch
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// find target user
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const targetUser = findUser(server, payload);
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if (!targetUser) {
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return server.reply({
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cmd: 'warn',
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text: 'Could not find user in that channel',
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id: Errors.Global.UNKNOWN_USER,
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channel: socket.channel, // @todo Multichannel
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}, socket);
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}
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// generate common channel
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const channel = getChannel(payload.to);
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// build invite
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const outgoingPayload = {
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cmd: 'invite',
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channel: socket.channel, // @todo Multichannel
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from: socket.userid,
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to: targetUser.userid,
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inviteChannel: channel,
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};
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// send invite notice to this client
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if (socket.hcProtocol === 1) {
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server.reply(legacyInviteReply(outgoingPayload, targetUser.nick), socket);
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} else {
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server.reply(outgoingPayload, socket);
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}
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return false;
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}
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return payload;
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}
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/**
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* Executes every time an incoming chat command is invoked;
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* shadow-prevent all whispers from muzzled users
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* @param {Object} env - Enviroment object with references to core, server, socket & payload
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* @public
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* @return {{Object|boolean|string}} Object = same/altered payload,
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* false = suppress action,
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* string = error
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*/
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export function whisperCheck({
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core, server, socket, payload,
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}) {
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if (core.muzzledHashes[socket.hash]) {
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// if this is a legacy client add missing params to payload
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if (socket.hcProtocol === 1) {
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payload.channel = socket.channel; // eslint-disable-line no-param-reassign
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}
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// verify user input
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const text = parseText(payload.text);
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if (!text) {
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// lets not send objects or empty text, yea?
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2023-12-27 16:26:49 +08:00
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return server.police.frisk(socket, 13);
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2022-06-23 00:32:51 +08:00
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}
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// check for spam
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const score = text.length / 83 / 4;
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2023-12-27 16:26:49 +08:00
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if (server.police.frisk(socket, score)) {
|
2022-06-23 00:32:51 +08:00
|
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return server.reply({
|
|
|
|
|
cmd: 'warn', // @todo Add numeric error code as `id`
|
|
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|
|
text: 'You are sending too much text. Wait a moment and try again.\nPress the up arrow key to restore your last message.',
|
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|
|
channel: socket.channel, // @todo Multichannel
|
|
|
|
|
}, socket);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
const targetUser = findUser(server, payload);
|
|
|
|
|
if (!targetUser) {
|
|
|
|
|
return server.reply({
|
|
|
|
|
cmd: 'warn',
|
|
|
|
|
text: 'Could not find user in that channel',
|
|
|
|
|
id: Errors.Global.UNKNOWN_USER,
|
|
|
|
|
channel: socket.channel, // @todo Multichannel
|
|
|
|
|
}, socket);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
const outgoingPayload = {
|
|
|
|
|
cmd: 'whisper',
|
|
|
|
|
channel: socket.channel, // @todo Multichannel
|
|
|
|
|
from: socket.userid,
|
|
|
|
|
to: targetUser.userid,
|
|
|
|
|
text,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
// send invite notice to this client
|
|
|
|
|
if (socket.hcProtocol === 1) {
|
|
|
|
|
server.reply(legacyWhisperReply(outgoingPayload, targetUser.nick), socket);
|
|
|
|
|
} else {
|
|
|
|
|
server.reply(outgoingPayload, socket);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
targetUser.whisperReply = socket.nick;
|
|
|
|
|
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return payload;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Module meta information
|
|
|
|
|
* @public
|
|
|
|
|
* @typedef {Object} dumb/info
|
|
|
|
|
* @property {string} name - Module command name
|
|
|
|
|
* @property {string} category - Module category name
|
|
|
|
|
* @property {string} description - Information about module
|
2023-12-22 15:14:03 +08:00
|
|
|
* @property {Array} aliases - An array of alternative cmd names
|
2022-06-23 00:32:51 +08:00
|
|
|
* @property {string} usage - Information about module usage
|
|
|
|
|
*/
|
|
|
|
|
export const info = {
|
|
|
|
|
name: 'dumb',
|
|
|
|
|
category: 'moderators',
|
|
|
|
|
description: 'Globally shadow mute a connection. Optional allies array will see muted messages.',
|
|
|
|
|
aliases: ['muzzle', 'mute'],
|
|
|
|
|
usage: `
|
|
|
|
|
API: { cmd: 'dumb', nick: '<target nick>', allies: ['<optional nick array>', ...] }`,
|
|
|
|
|
};
|
|
|
|
|
</code></pre>
|
|
|
|
|
</article>
|
|
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|
|
</section>
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|
|
</div>
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|
|
<nav>
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<h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-addmod.html">addmod</a></li><li><a href="module-ban.html">ban</a></li><li><a href="module-changecolor.html">changecolor</a></li><li><a href="module-changenick.html">changenick</a></li><li><a href="module-chat.html">chat</a></li><li><a href="module-disconnect.html">disconnect</a></li><li><a href="module-dumb.html">dumb</a></li><li><a href="module-emote.html">emote</a></li><li><a href="module-forcecolor.html">forcecolor</a></li><li><a href="module-help.html">help</a></li><li><a href="module-invite.html">invite</a></li><li><a href="module-join.html">join</a></li><li><a href="module-kick.html">kick</a></li><li><a href="module-listusers.html">listusers</a></li><li><a href="module-morestats.html">morestats</a></li><li><a href="module-ping.html">ping</a></li><li><a href="module-reload.html">reload</a></li><li><a href="module-removemod.html">removemod</a></li><li><a href="module-saveconfig.html">saveconfig</a></li><li><a href="module-session.html">session</a></li><li><a href="module-shout.html">shout</a></li><li><a href="module-socketreply.html">socketreply</a></li><li><a href="module-speak.html">speak</a></li><li><a href="module-stats.html">stats</a></li><li><a href="module-unban.html">unban</a></li><li><a href="module-unbanall.html">unbanall</a></li><li><a href="module-whisper.html">whisper</a></li></ul>
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<footer>
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2023-12-22 15:14:03 +08:00
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Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.10</a> on Thu May 05 2022 00:29:35 GMT-0700 (Pacific Daylight Time)
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2022-06-23 00:32:51 +08:00
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