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251 lines
7.3 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<title>JSDoc: Source: core/session.js</title>
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<h1 class="page-title">Source: core/session.js</h1>
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<section>
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<article>
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<pre class="prettyprint source linenums"><code>/* eslint import/no-cycle: [0, { ignoreExternal: true }] */
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/**
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* @author Marzavec ( https://github.com/marzavec )
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* @summary Create or restore session
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* @version 1.0.0
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* @description Restore previous state by session or create new session
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* @module session
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*/
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import fs from 'fs';
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import jsonwebtoken from 'jsonwebtoken';
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import {
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isModerator,
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verifyNickname,
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} from '../utility/_UAC.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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restoreJoin,
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} from './join.js';
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const SessionLocation = './session.key';
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/**
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* Get a new json web token for the provided socket
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* @param {*} socket
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* @param {*} core
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* @returns {object}
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*/
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export function getSession(socket, core) {
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return jsonwebtoken.sign({
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channel: socket.channel,
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channels: socket.channels,
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color: socket.color,
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isBot: socket.isBot,
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level: socket.level,
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nick: socket.nick,
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trip: socket.trip,
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userid: socket.userid,
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uType: socket.uType,
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muzzled: socket.muzzled || false,
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banned: socket.banned || false,
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}, core.sessionKey, {
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expiresIn: '7 days',
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});
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}
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/**
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* Reply to target socket with session failure notice
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* @param {*} server
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* @param {*} socket
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* @returns {boolean}
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*/
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function notifyFailure(server, socket) {
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server.reply({
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cmd: 'error',
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id: Errors.Session.BAD_SESSION,
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text: 'Invalid session',
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}, socket);
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return false;
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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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if (typeof payload.token === 'undefined') {
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return notifyFailure(server, socket);
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}
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let session = false;
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try {
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session = jsonwebtoken.verify(payload.token, core.sessionKey);
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} catch (err) {
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return notifyFailure(server, socket);
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}
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// validate session
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if (typeof session.channel !== 'string') {
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return notifyFailure(server, socket);
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}
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if (Array.isArray(session.channels) === false) {
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return notifyFailure(server, socket);
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}
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if (typeof session.color !== 'string' && typeof session.color !== 'boolean') {
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return notifyFailure(server, socket);
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}
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if (typeof session.isBot !== 'boolean') {
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return notifyFailure(server, socket);
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}
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if (typeof session.level !== 'number') {
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return notifyFailure(server, socket);
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}
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if (verifyNickname(session.nick) === false) {
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return notifyFailure(server, socket);
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}
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if (typeof session.trip !== 'string') {
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return notifyFailure(server, socket);
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}
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if (typeof session.userid !== 'number') {
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return notifyFailure(server, socket);
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}
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if (typeof session.uType !== 'string') {
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return notifyFailure(server, socket);
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}
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if (typeof session.muzzled !== 'boolean') {
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return notifyFailure(server, socket);
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}
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if (typeof session.banned !== 'boolean') {
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return notifyFailure(server, socket);
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}
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// populate socket info with validated session
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socket.channels = [];
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socket.color = session.color;
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socket.isBot = session.isBot;
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socket.level = session.level;
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socket.nick = session.nick;
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socket.trip = session.trip;
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socket.userid = session.userid;
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socket.uType = session.uType;
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socket.muzzled = session.muzzled;
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socket.banned = session.banned;
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// global mod perks
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if (isModerator(socket.level)) {
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socket.ratelimitImmune = true;
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}
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socket.hash = server.getSocketHash(socket);
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socket.hcProtocol = 2;
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// dispatch info
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server.reply({
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cmd: 'session',
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restored: true,
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token: getSession(socket, core),
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channels: socket.channels,
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}, socket);
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for (let i = 0, j = session.channels.length; i < j; i += 1) {
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restoreJoin({
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core,
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server,
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socket,
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channel: session.channels[i],
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}, true);
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}
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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
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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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// load the encryption key if required
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if (typeof core.sessionKey === 'undefined') {
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core.sessionKey = fs.readFileSync(SessionLocation);
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}
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}
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/**
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* Module meta information
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* @public
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* @typedef {Object} session/info
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* @property {string} name - Module command name
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* @property {string} category - Module category name
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* @property {string} description - Information about module
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* @property {string} usage - Information about module usage
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*/
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export const info = {
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name: 'session',
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category: 'core',
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description: 'Restore previous state by session or create new session',
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usage: "API: { cmd: 'session', id: '<previous session>' }",
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};
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</code></pre>
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</article>
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</section>
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Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.10</a> on Fri Dec 29 2023 23:22:35 GMT-0800 (Pacific Standard Time)
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