Rate limit user messages to 5/s

packages/rocketchat-lib/lib/rateLimiter.coffee

@@ -0,0 +1,11 @@
+# Limit sending messages to 5 messages per second per user
+DDPRateLimiter.addRule
+	userId: (userId) ->
+		return Meteor.users.findOne(userId)?.username isnt RocketChat.settings.get('RocketBot_Name')
+	clientAddress: null
+	type: 'method'
+	name: 'sendMessage'
+	connectionId: ->
+		return true
+, 5, 1000
+

packages/rocketchat-lib/package.js

@@ -13,6 +13,7 @@ Package.onUse(function(api) {
 	api.use('coffeescript');
 	api.use('random');
 	api.use('check');
+	api.use('ddp-rate-limiter');
 	api.use('underscore');
 	api.use('underscorestring:underscore.string');
 	api.use('monbro:mongodb-mapreduce-aggregation@1.0.1');
@@ -34,6 +35,7 @@ Package.onUse(function(api) {
 	// COMMON
 	api.addFiles('lib/core.coffee');
 	api.addFiles('lib/callbacks.coffee');
+	api.addFiles('lib/rateLimiter.coffee');
 	api.addFiles('lib/slashCommand.coffee');
 
 	// MODELS SERVER