mirror of https://github.com/calzoneman/sync.git
Refactor socket.io controller
This commit is contained in:
Calvin Montgomery
parent
107155a661
commit
0118a6fb15
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@ -370,7 +370,7 @@ Channel.prototype.acceptUser = function (user) {
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user.socket.on("readChanLog", this.handleReadLog.bind(this, user));
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LOGGER.info(user.realip + " joined " + this.name);
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if (user.socket._isUsingTor) {
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if (user.socket.context.torConnection) {
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if (this.modules.options && this.modules.options.get("torbanned")) {
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user.kick("This channel has banned connections from Tor.");
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this.logger.log("[login] Blocked connection from Tor exit at " +
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@ -1,17 +1,12 @@
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var sio = require("socket.io");
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var db = require("../database");
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var User = require("../user");
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var Server = require("../server");
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var Config = require("../config");
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var cookieParser = require("cookie-parser")(Config.get("http.cookie-secret"));
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var $util = require("../utilities");
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var Flags = require("../flags");
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var typecheck = require("json-typecheck");
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var net = require("net");
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var util = require("../utilities");
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var crypto = require("crypto");
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var isTorExit = require("../tor").isTorExit;
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var session = require("../session");
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import sio from 'socket.io';
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import db from '../database';
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import User from '../user';
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import Server from '../server';
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import Config from '../config';
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const cookieParser = require("cookie-parser")(Config.get("http.cookie-secret"));
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import typecheck from 'json-typecheck';
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import { isTorExit } from '../tor';
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import session from '../session';
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import counters from '../counters';
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import { verifyIPSessionCookie } from '../web/middleware/ipsessioncookie';
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import Promise from 'bluebird';
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@ -21,118 +16,181 @@ import { CachingGlobalBanlist } from './globalban';
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import proxyaddr from 'proxy-addr';
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import { Counter, Gauge } from 'prom-client';
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import Socket from 'socket.io/lib/socket';
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import { TokenBucket } from '../util/token-bucket';
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import http from 'http';
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const LOGGER = require('@calzoneman/jsli')('ioserver');
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var CONNECT_RATE = {
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burst: 5,
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sustained: 0.1
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};
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// WIP, not in use yet
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class IOServer {
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constructor(options = {
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proxyTrustFn: proxyaddr.compile('127.0.0.1')
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}) {
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({
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proxyTrustFn: this.proxyTrustFn
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} = options);
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var ipThrottle = {};
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// Keep track of number of connections per IP
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var ipCount = {};
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this.ipThrottle = new Map();
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this.ipCount = new Map();
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}
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function parseCookies(socket, accept) {
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var req = socket.request;
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if (req.headers.cookie) {
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cookieParser(req, null, () => {
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accept(null, true);
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// Map proxied sockets to the real IP address via X-Forwarded-For
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// If the resulting address is a known Tor exit, flag it as such
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ipProxyMiddleware(socket, next) {
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if (!socket.context) socket.context = {};
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socket.context.ipAddress = proxyaddr(socket.client.request, this.proxyTrustFn);
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if (isTorExit(socket.context.ipAddress)) {
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socket.context.torConnection = true;
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}
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next();
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}
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// Reject global banned IP addresses
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ipBanMiddleware(socket, next) {
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if (isIPGlobalBanned(socket.context.ipAddress)) {
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LOGGER.info('Rejecting %s - banned',
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socket.context.ipAddress);
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next(new Error('You are banned from the server'));
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return;
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}
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next();
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}
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// Rate limit connection attempts by IP address
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ipThrottleMiddleware(socket, next) {
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if (!this.ipThrottle.has(socket.context.ipAddress)) {
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this.ipThrottle.set(socket.context.ipAddress, new TokenBucket(5, 0.1));
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}
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const bucket = this.ipThrottle.get(socket.context.ipAddress);
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if (bucket.throttle()) {
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LOGGER.info('Rejecting %s - exceeded connection rate limit',
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socket.context.ipAddress);
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next(new Error('Rate limit exceeded'));
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return;
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}
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next();
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}
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ipConnectionLimitMiddleware(socket, next) {
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const ip = socket.context.ipAddress;
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const count = this.ipCount.get(ip) || 0;
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if (count >= Config.get('io.ip-connection-limit')) {
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// TODO: better error message would be nice
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next(new Error('Too many connections from your IP address'));
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return;
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}
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this.ipCount.set(ip, count + 1);
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socket.once('disconnect', () => {
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this.ipCount.set(ip, this.ipCount.get(ip) - 1);
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});
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next();
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}
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// Parse cookies
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cookieParsingMiddleware(socket, next) {
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const req = socket.request;
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if (req.headers.cookie) {
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cookieParser(req, null, () => next());
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} else {
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req.cookies = {};
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req.signedCookies = {};
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accept(null, true);
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next();
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}
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}
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}
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/**
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* Called before an incoming socket.io connection is accepted.
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*/
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function handleAuth(socket, accept) {
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socket.user = null;
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socket.aliases = [];
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// Determine session age from ip-session cookie
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// (Used for restricting chat)
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ipSessionCookieMiddleware(socket, next) {
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const cookie = socket.request.signedCookies['ip-session'];
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if (!cookie) {
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socket.context.ipSessionFirstSeen = new Date();
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next();
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return;
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}
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const sessionMatch = verifyIPSessionCookie(socket.context.ipAddress, cookie);
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if (sessionMatch) {
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socket.context.ipSessionFirstSeen = sessionMatch.date;
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} else {
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socket.context.ipSessionFirstSeen = new Date();
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}
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next();
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}
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// Match login cookie against the DB, look up aliases
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authUserMiddleware(socket, next) {
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socket.context.aliases = [];
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const promises = [];
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const auth = socket.request.signedCookies.auth;
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if (auth) {
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promises.push(verifySession(auth).then(user => {
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socket.user = Object.assign({}, user);
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socket.context.user = Object.assign({}, user);
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}).catch(error => {
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// Do nothing
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LOGGER.warn('Unable to verify session for %s - ignoring auth',
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socket.context.ipAddress);
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}));
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}
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promises.push(getAliases(socket._realip).then(aliases => {
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socket.aliases = aliases;
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promises.push(getAliases(socket.context.ipAddress).then(aliases => {
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socket.context.aliases = aliases;
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}).catch(error => {
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// Do nothing
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LOGGER.warn('Unable to load aliases for %s',
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socket.context.ipAddress);
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}));
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Promise.all(promises).then(() => {
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accept(null, true);
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Promise.all(promises).then(() => next());
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}
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metricsEmittingMiddleware(socket, next) {
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emitMetrics(socket);
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next();
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}
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handleConnection(socket) {
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LOGGER.info('Accepted socket from %s', socket.context.ipAddress);
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counters.add('socket.io:accept', 1);
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socket.once('disconnect', () => counters.add('socket.io:disconnect', 1));
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const user = new User(socket, socket.context.ipAddress, socket.context.user);
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if (socket.context.user) {
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db.recordVisit(socket.context.ipAddress, user.getName());
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}
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const announcement = Server.getServer().announcement;
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if (announcement !== null) {
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socket.emit('announcement', announcement);
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}
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}
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initSocketIO() {
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patchTypecheckedFunctions();
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const io = this.io = sio.instance = sio();
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io.use(this.ipProxyMiddleware.bind(this));
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io.use(this.ipBanMiddleware.bind(this));
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io.use(this.ipThrottleMiddleware.bind(this));
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io.use(this.ipConnectionLimitMiddleware.bind(this));
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io.use(this.cookieParsingMiddleware.bind(this));
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io.use(this.ipSessionCookieMiddleware.bind(this));
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io.use(this.authUserMiddleware.bind(this));
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io.use(this.metricsEmittingMiddleware.bind(this));
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io.on('connection', this.handleConnection.bind(this));
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}
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bindTo(servers) {
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if (!this.io) {
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throw new Error('Cannot bind: socket.io has not been initialized yet');
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}
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servers.forEach(server => {
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this.io.attach(server);
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});
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}
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function handleIPSessionCookie(socket, accept) {
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var cookie = socket.request.signedCookies['ip-session'];
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if (!cookie) {
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socket.ipSessionFirstSeen = new Date();
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return accept(null, true);
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}
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var sessionMatch = verifyIPSessionCookie(socket._realip, cookie);
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if (sessionMatch) {
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socket.ipSessionFirstSeen = sessionMatch.date;
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} else {
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socket.ipSessionFirstSeen = new Date();
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}
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accept(null, true);
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}
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function throttleIP(sock) {
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var ip = sock._realip;
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if (!(ip in ipThrottle)) {
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ipThrottle[ip] = $util.newRateLimiter();
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}
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if (ipThrottle[ip].throttle(CONNECT_RATE)) {
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LOGGER.warn("IP throttled: " + ip);
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sock.emit("kick", {
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reason: "Your IP address is connecting too quickly. Please "+
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"wait 10 seconds before joining again."
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});
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sock.disconnect();
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return true;
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}
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return false;
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}
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function ipLimitReached(sock) {
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var ip = sock._realip;
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sock.on("disconnect", function () {
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counters.add("socket.io:disconnect", 1);
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ipCount[ip]--;
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if (ipCount[ip] === 0) {
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/* Clear out unnecessary counters to save memory */
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delete ipCount[ip];
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}
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});
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if (!(ip in ipCount)) {
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ipCount[ip] = 0;
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}
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ipCount[ip]++;
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if (ipCount[ip] > Config.get("io.ip-connection-limit")) {
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sock.emit("kick", {
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reason: "Too many connections from your IP address"
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});
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sock.disconnect();
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return;
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}
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}
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@ -167,18 +225,6 @@ function patchTypecheckedFunctions() {
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};
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}
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function ipForwardingMiddleware(webConfig) {
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const trustFn = proxyaddr.compile(webConfig.getTrustedProxies());
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return function (socket, accept) {
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LOGGER.debug('ip = %s', socket.client.request.connection.remoteAddress);
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//socket.client.request.ip = socket.client.conn.remoteAddress;
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socket._realip = proxyaddr(socket.client.request, trustFn);
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LOGGER.debug('socket._realip: %s', socket._realip);
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accept(null, true);
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}
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}
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let globalIPBanlist = null;
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function isIPGlobalBanned(ip) {
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if (globalIPBanlist === null) {
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@ -219,7 +265,7 @@ function emitMetrics(sock) {
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}
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} catch (error) {
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LOGGER.error('Error emitting transport upgrade metrics for socket (ip=%s): %s',
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sock._realip, error.stack);
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sock.context.ipAddress, error.stack);
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}
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});
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@ -229,130 +275,74 @@ function emitMetrics(sock) {
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promSocketDisconnect.inc(1, new Date());
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} catch (error) {
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LOGGER.error('Error emitting disconnect metrics for socket (ip=%s): %s',
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sock._realip, error.stack);
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sock.context.ipAddress, error.stack);
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}
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});
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} catch (error) {
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LOGGER.error('Error emitting metrics for socket (ip=%s): %s',
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sock._realip, error.stack);
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sock.context.ipAddress, error.stack);
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}
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}
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/**
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* Called after a connection is accepted
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*/
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function handleConnection(sock) {
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var ip = sock._realip;
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if (!ip) {
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sock.emit("kick", {
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reason: "Your IP address could not be determined from the socket connection. See https://github.com/Automattic/socket.io/issues/1737 for details"
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});
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return;
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}
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if (net.isIPv6(ip)) {
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ip = util.expandIPv6(ip);
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sock._realip = ip;
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}
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if (isTorExit(ip)) {
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sock._isUsingTor = true;
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}
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var srv = Server.getServer();
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if (throttleIP(sock)) {
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return;
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}
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// Check for global ban on the IP
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if (isIPGlobalBanned(ip)) {
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LOGGER.info("Rejecting " + ip + " - global banned");
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sock.emit("kick", { reason: "Your IP is globally banned." });
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sock.disconnect();
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return;
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}
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if (ipLimitReached(sock)) {
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return;
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}
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emitMetrics(sock);
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LOGGER.info("Accepted socket from " + ip);
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counters.add("socket.io:accept", 1);
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const user = new User(sock, ip, sock.user);
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if (sock.user) {
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db.recordVisit(ip, user.getName());
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}
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const announcement = srv.announcement;
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if (announcement != null) {
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sock.emit("announcement", announcement);
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}
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}
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let instance = null;
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module.exports = {
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init: function (srv, webConfig) {
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patchTypecheckedFunctions();
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var bound = {};
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const ioOptions = {
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perMessageDeflate: Config.get("io.per-message-deflate")
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};
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var io = sio.instance = sio();
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if (instance !== null) {
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throw new Error('ioserver.init: already initialized');
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}
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io.use(ipForwardingMiddleware(webConfig));
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io.use(parseCookies);
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io.use(handleIPSessionCookie);
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io.use(handleAuth);
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io.on("connection", handleConnection);
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const ioServer = instance = new IOServer({
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proxyTrustFn: proxyaddr.compile(webConfig.getTrustedProxies())
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});
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ioServer.initSocketIO();
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const uniqueListenAddresses = new Set();
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const servers = [];
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Config.get("listen").forEach(function (bind) {
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if (!bind.io) {
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return;
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}
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var id = bind.ip + ":" + bind.port;
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if (id in bound) {
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LOGGER.warn("Ignoring duplicate listen address " + id);
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const id = bind.ip + ":" + bind.port;
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if (uniqueListenAddresses.has(id)) {
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LOGGER.warn("Ignoring duplicate listen address %s", id);
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return;
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}
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if (id in srv.servers) {
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io.attach(srv.servers[id], ioOptions);
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if (srv.servers.hasOwnProperty(id)) {
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servers.push(srv.servers[id]);
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} else {
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var server = require("http").createServer().listen(bind.port, bind.ip);
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server.on("clientError", function (err, socket) {
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try {
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socket.destroy();
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} catch (e) {
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}
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});
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io.attach(server, ioOptions);
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const server = http.createServer().listen(bind.port, bind.ip);
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servers.push(server);
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}
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bound[id] = null;
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uniqueListenAddresses.add(id);
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});
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ioServer.bindTo(servers);
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},
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handleConnection: handleConnection
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IOServer: IOServer
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};
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/* Clean out old rate limiters */
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setInterval(function () {
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for (var ip in ipThrottle) {
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if (ipThrottle[ip].lastTime < Date.now() - 60 * 1000) {
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var obj = ipThrottle[ip];
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/* Not strictly necessary, but seems to help the GC out a bit */
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for (var key in obj) {
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delete obj[key];
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}
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delete ipThrottle[ip];
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if (instance == null) return;
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let cleaned = 0;
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const keys = instance.ipThrottle.keys();
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for (const key of keys) {
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if (instance.ipThrottle.get(key).lastRefill < Date.now() - 60000) {
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const bucket = instance.ipThrottle.delete(key);
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for (const k in bucket) delete bucket[k];
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cleaned++;
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}
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}
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if (Config.get("aggressive-gc") && global && global.gc) {
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global.gc();
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if (cleaned > 0) {
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LOGGER.info('Cleaned up %d stale IP throttle token buckets', cleaned);
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}
|
||||
}, 5 * 60 * 1000);
|
||||
|
|
|
|||
|
|
@ -104,6 +104,10 @@ export function addReportHook(hook) {
|
|||
reportHooks.push(hook);
|
||||
}
|
||||
|
||||
export function clearReportHooks() {
|
||||
reportHooks = [];
|
||||
}
|
||||
|
||||
/**
|
||||
* Force metrics to be reported right now.
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -196,28 +196,6 @@ Server.prototype.reloadCertificateData = function reloadCertificateData() {
|
|||
});
|
||||
};
|
||||
|
||||
Server.prototype.getHTTPIP = function (req) {
|
||||
var ip = req.ip;
|
||||
if (ip === "127.0.0.1" || ip === "::1") {
|
||||
var fwd = req.header("x-forwarded-for");
|
||||
if (fwd && typeof fwd === "string") {
|
||||
return fwd;
|
||||
}
|
||||
}
|
||||
return ip;
|
||||
};
|
||||
|
||||
Server.prototype.getSocketIP = function (socket) {
|
||||
var raw = socket.handshake.address.address;
|
||||
if (raw === "127.0.0.1" || raw === "::1") {
|
||||
var fwd = socket.handshake.headers["x-forwarded-for"];
|
||||
if (fwd && typeof fwd === "string") {
|
||||
return fwd;
|
||||
}
|
||||
}
|
||||
return raw;
|
||||
};
|
||||
|
||||
Server.prototype.isChannelLoaded = function (name) {
|
||||
name = name.toLowerCase();
|
||||
for (var i = 0; i < this.channels.length; i++) {
|
||||
|
|
|
|||
22
src/user.js
22
src/user.js
|
|
@ -7,14 +7,17 @@ var Account = require("./account");
|
|||
var Flags = require("./flags");
|
||||
import { EventEmitter } from 'events';
|
||||
import Logger from './logger';
|
||||
import net from 'net';
|
||||
|
||||
const LOGGER = require('@calzoneman/jsli')('user');
|
||||
|
||||
function User(socket, ip, loginInfo) {
|
||||
this.flags = 0;
|
||||
this.socket = socket;
|
||||
this.realip = ip;
|
||||
this.displayip = util.cloakIP(ip);
|
||||
// Expanding IPv6 addresses shouldn't really be necessary
|
||||
// At some point, the IPv6 related stuff should be revisited
|
||||
this.realip = net.isIPv6(ip) ? util.expandIPv6(ip) : ip;
|
||||
this.displayip = util.cloakIP(this.realip);
|
||||
this.channel = null;
|
||||
this.queueLimiter = util.newRateLimiter();
|
||||
this.chatLimiter = util.newRateLimiter();
|
||||
|
|
@ -22,7 +25,7 @@ function User(socket, ip, loginInfo) {
|
|||
this.awaytimer = false;
|
||||
|
||||
if (loginInfo) {
|
||||
this.account = new Account.Account(this.realip, loginInfo, socket.aliases);
|
||||
this.account = new Account.Account(this.realip, loginInfo, socket.context.aliases);
|
||||
this.registrationTime = new Date(this.account.user.time);
|
||||
this.setFlag(Flags.U_REGISTERED | Flags.U_LOGGED_IN | Flags.U_READY);
|
||||
socket.emit("login", {
|
||||
|
|
@ -33,7 +36,7 @@ function User(socket, ip, loginInfo) {
|
|||
socket.emit("rank", this.account.effectiveRank);
|
||||
LOGGER.info(ip + " logged in as " + this.getName());
|
||||
} else {
|
||||
this.account = new Account.Account(this.realip, null, socket.aliases);
|
||||
this.account = new Account.Account(this.realip, null, socket.context.aliases);
|
||||
socket.emit("rank", -1);
|
||||
this.setFlag(Flags.U_READY);
|
||||
}
|
||||
|
|
@ -429,12 +432,15 @@ setInterval(function () {
|
|||
}, 5 * 60 * 1000);
|
||||
|
||||
User.prototype.getFirstSeenTime = function getFirstSeenTime() {
|
||||
if (this.registrationTime && this.socket.ipSessionFirstSeen) {
|
||||
return Math.min(this.registrationTime.getTime(), this.socket.ipSessionFirstSeen.getTime());
|
||||
if (this.registrationTime && this.socket.context.ipSessionFirstSeen) {
|
||||
return Math.min(
|
||||
this.registrationTime.getTime(),
|
||||
this.socket.context.ipSessionFirstSeen.getTime()
|
||||
);
|
||||
} else if (this.registrationTime) {
|
||||
return this.registrationTime.getTime();
|
||||
} else if (this.socket.ipSessionFirstSeen) {
|
||||
return this.socket.ipSessionFirstSeen.getTime();
|
||||
} else if (this.socket.context.ipSessionFirstSeen) {
|
||||
return this.socket.context.ipSessionFirstSeen.getTime();
|
||||
} else {
|
||||
LOGGER.error(`User "${this.getName()}" (IP: ${this.realip}) has neither ` +
|
||||
"an IP session first seen time nor a registered account.");
|
||||
|
|
|
|||
|
|
@ -0,0 +1,26 @@
|
|||
class TokenBucket {
|
||||
constructor(capacity, refillRate) {
|
||||
this.capacity = capacity;
|
||||
this.refillRate = refillRate;
|
||||
this.count = capacity;
|
||||
this.lastRefill = Date.now();
|
||||
}
|
||||
|
||||
throttle() {
|
||||
const now = Date.now();
|
||||
const delta = Math.floor((now - this.lastRefill) / 1000 * this.refillRate);
|
||||
if (delta > 0) {
|
||||
this.count = Math.min(this.capacity, this.count + delta);
|
||||
this.lastRefill = now;
|
||||
}
|
||||
|
||||
if (this.count === 0) {
|
||||
return true;
|
||||
} else {
|
||||
this.count--;
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
export { TokenBucket };
|
||||
|
|
@ -0,0 +1,153 @@
|
|||
const assert = require('assert');
|
||||
const IOServer = require('../../lib/io/ioserver').IOServer;
|
||||
|
||||
describe('IOServer', () => {
|
||||
let server;
|
||||
let socket;
|
||||
beforeEach(() => {
|
||||
server = new IOServer();
|
||||
socket = {
|
||||
context: {
|
||||
ipAddress: '9.9.9.9'
|
||||
},
|
||||
client: {
|
||||
request: {
|
||||
connection: {
|
||||
remoteAddress: '127.0.0.1'
|
||||
},
|
||||
headers: {
|
||||
'x-forwarded-for': '1.2.3.4'
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
socket.request = socket.client.request;
|
||||
});
|
||||
|
||||
describe('#ipProxyMiddleware', () => {
|
||||
it('proxies from a trusted address', done => {
|
||||
server.ipProxyMiddleware(socket, error => {
|
||||
assert(!error);
|
||||
assert.strictEqual(socket.context.ipAddress, '1.2.3.4');
|
||||
done();
|
||||
});
|
||||
});
|
||||
|
||||
it('does not proxy from a non-trusted address', done => {
|
||||
socket.client.request.connection.remoteAddress = '5.6.7.8';
|
||||
server.ipProxyMiddleware(socket, error => {
|
||||
assert(!error);
|
||||
assert.strictEqual(socket.context.ipAddress, '5.6.7.8');
|
||||
done();
|
||||
});
|
||||
});
|
||||
|
||||
it('sets context.torConnection = true for Tor exits', () => {
|
||||
// TODO
|
||||
});
|
||||
});
|
||||
|
||||
describe('#ipBanMiddleware', () => {
|
||||
// TODO
|
||||
});
|
||||
|
||||
describe('#ipThrottleMiddleware', () => {
|
||||
it('throttles connections', done => {
|
||||
let i = 0;
|
||||
function callback(error) {
|
||||
if (i < 5) {
|
||||
assert(!error);
|
||||
} else {
|
||||
assert.strictEqual(error.message, 'Rate limit exceeded');
|
||||
done();
|
||||
}
|
||||
}
|
||||
|
||||
function next() {
|
||||
server.ipThrottleMiddleware(socket, error => {
|
||||
callback(error);
|
||||
if (++i < 6) next();
|
||||
});
|
||||
}
|
||||
|
||||
next();
|
||||
});
|
||||
});
|
||||
|
||||
describe('#ipConnectionLimitMiddleware', () => {
|
||||
beforeEach(() => {
|
||||
socket.once = (event, callback) => {
|
||||
socket[`on_${event}`] = callback;
|
||||
};
|
||||
});
|
||||
|
||||
it('allows IPs before the limit', done => {
|
||||
server.ipConnectionLimitMiddleware(socket, error => {
|
||||
if (error) {
|
||||
throw error;
|
||||
}
|
||||
|
||||
done();
|
||||
});
|
||||
});
|
||||
|
||||
it('rejects IPs at the limit', done => {
|
||||
server.ipCount.set(socket.context.ipAddress,
|
||||
require('../../lib/config').get('io.ip-connection-limit'));
|
||||
server.ipConnectionLimitMiddleware(socket, error => {
|
||||
assert(error, 'Expected an error to be returned');
|
||||
assert.strictEqual(error.message,
|
||||
'Too many connections from your IP address');
|
||||
done();
|
||||
});
|
||||
});
|
||||
|
||||
it('manages the ipCount map correctly', done => {
|
||||
const ip = socket.context.ipAddress;
|
||||
|
||||
assert(!server.ipCount.has(ip), 'Test precondition failed: ipCount.has(ip)');
|
||||
|
||||
server.ipConnectionLimitMiddleware(socket, error => {
|
||||
if (error) {
|
||||
throw error;
|
||||
}
|
||||
|
||||
assert.strictEqual(server.ipCount.get(ip), 1);
|
||||
|
||||
socket.on_disconnect();
|
||||
|
||||
assert.strictEqual(server.ipCount.get(ip), 0);
|
||||
|
||||
done();
|
||||
});
|
||||
});
|
||||
});
|
||||
|
||||
describe('#cookieParsingMiddleware', () => {
|
||||
it('parses cookies', done => {
|
||||
socket.request.headers.cookie = 'flavor=chocolate%20chip';
|
||||
|
||||
server.cookieParsingMiddleware(socket, () => {
|
||||
assert.strictEqual(socket.request.cookies.flavor, 'chocolate chip');
|
||||
done();
|
||||
});
|
||||
});
|
||||
|
||||
it('defaults to empty objects if no cookies', done => {
|
||||
server.cookieParsingMiddleware(socket, () => {
|
||||
assert.deepStrictEqual(socket.request.cookies, {});
|
||||
assert.deepStrictEqual(socket.request.signedCookies, {});
|
||||
done();
|
||||
});
|
||||
});
|
||||
});
|
||||
|
||||
describe('#ipSessionCookieMiddleware', () => {
|
||||
// TODO
|
||||
});
|
||||
|
||||
describe('#authUserMiddleware', () => {
|
||||
// TODO
|
||||
});
|
||||
});
|
||||
|
|
@ -6,6 +6,10 @@ var fs = require('fs');
|
|||
var path = require('path');
|
||||
|
||||
describe('JSONFileMetricsReporter', function () {
|
||||
before(() => {
|
||||
Metrics.clearReportHooks();
|
||||
});
|
||||
|
||||
describe('#report', function () {
|
||||
it('reports metrics to file', function (done) {
|
||||
const outfile = path.resolve(os.tmpdir(),
|
||||
|
|
|
|||
|
|
@ -0,0 +1,58 @@
|
|||
const assert = require('assert');
|
||||
const TokenBucket = require('../../lib/util/token-bucket').TokenBucket;
|
||||
|
||||
describe('TokenBucket', () => {
|
||||
describe('#throttle', () => {
|
||||
let bucket;
|
||||
beforeEach(() => {
|
||||
bucket = new TokenBucket(5, 5);
|
||||
});
|
||||
|
||||
it('consumes capacity and then throttles', () => {
|
||||
assert(!bucket.throttle(), 'should not be empty yet');
|
||||
assert(!bucket.throttle(), 'should not be empty yet');
|
||||
assert(!bucket.throttle(), 'should not be empty yet');
|
||||
assert(!bucket.throttle(), 'should not be empty yet');
|
||||
assert(!bucket.throttle(), 'should not be empty yet');
|
||||
assert(bucket.throttle(), 'should be empty now');
|
||||
});
|
||||
|
||||
it('refills tokens', () => {
|
||||
bucket.count = 0;
|
||||
const oldRefill = bucket.lastRefill = Date.now() - 1000;
|
||||
assert(!bucket.throttle(), 'should have refilled');
|
||||
assert(bucket.lastRefill >= oldRefill + 1000, 'should have updated lastRefill');
|
||||
});
|
||||
|
||||
it('refills at most {capacity} tokens', () => {
|
||||
bucket.count = 0;
|
||||
bucket.lastRefill = Date.now() - 10000;
|
||||
bucket.throttle();
|
||||
assert.strictEqual(bucket.count, 4);
|
||||
});
|
||||
|
||||
it('does a partial refill', () => {
|
||||
bucket.count = 0;
|
||||
bucket.lastRefill = Date.now() - 400;
|
||||
bucket.throttle();
|
||||
assert.strictEqual(bucket.count, 1);
|
||||
});
|
||||
|
||||
it('skips refilling if delta = 0', () => {
|
||||
bucket.count = 0;
|
||||
const oldRefill = bucket.lastRefill;
|
||||
bucket.throttle();
|
||||
assert.strictEqual(bucket.count, 0);
|
||||
assert.strictEqual(bucket.lastRefill, oldRefill);
|
||||
});
|
||||
|
||||
it('handles fractional refill rates', () => {
|
||||
bucket = new TokenBucket(5, 0.1);
|
||||
bucket.count = 0;
|
||||
assert(bucket.throttle());
|
||||
bucket.lastRefill = Date.now() - 10000;
|
||||
assert(!bucket.throttle());
|
||||
assert.strictEqual(bucket.count, 0);
|
||||
});
|
||||
});
|
||||
});
|
||||
|
|
@ -40,6 +40,14 @@ Callbacks = {
|
|||
scrollChat();
|
||||
},
|
||||
|
||||
// Socket.IO error callback
|
||||
error: function (msg) {
|
||||
$("<div/>")
|
||||
.addClass("server-msg-disconnect")
|
||||
.text("Unable to connect: " + msg)
|
||||
.appendTo($("#messagebuffer"));
|
||||
},
|
||||
|
||||
errorMsg: function(data) {
|
||||
if (data.alert) {
|
||||
alert(data.msg);
|
||||
|
|
|
|||
Loading…
Reference in New Issue