From 9952154433df03423855c99240324153b58d5e4a Mon Sep 17 00:00:00 2001
From: Chris Sexton <EMAIL>
Date: Sun, 20 Apr 2014 12:54:01 -0400
Subject: [PATCH] Fixes #56: Add rate limit to outgoing messages

---
 config.json      |  1 +
 config/config.go |  1 +
 main.go          | 13 +++++++++----
 3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/config.json b/config.json
index 2890f7f..75188fa 100644
--- a/config.json
+++ b/config.json
@@ -9,6 +9,7 @@
 	"Pass": "AlePaleTest:test",
 	"FullName": "Ale Pale",
 	"CommandChar": "!",
+	"RatePerSec": 10.0,
 	"QuoteChance": 0.99,
 	"QuoteTime": 1,
 	"LogLength": 50,
diff --git a/config/config.go b/config/config.go
index ce62557..7fc044b 100644
--- a/config/config.go
+++ b/config/config.go
@@ -18,6 +18,7 @@ type Config struct {
 	FullName              string
 	Version               string
 	CommandChar           string
+	RatePerSec            float64
 	QuoteChance           float64
 	QuoteTime             int
 	LogLength             int
diff --git a/main.go b/main.go
index 32d25df..6ca5b2f 100644
--- a/main.go
+++ b/main.go
@@ -3,15 +3,16 @@
 package main
 
 import (
-	"code.google.com/p/velour/irc"
 	"flag"
-	"github.com/chrissexton/alepale/bot"
-	"github.com/chrissexton/alepale/config"
-	"github.com/chrissexton/alepale/plugins"
 	"io"
 	"log"
 	"os"
 	"time"
+
+	"code.google.com/p/velour/irc"
+	"github.com/chrissexton/alepale/bot"
+	"github.com/chrissexton/alepale/config"
+	"github.com/chrissexton/alepale/plugins"
 )
 
 const (
@@ -90,6 +91,9 @@ func handleConnection() {
 		}
 	}()
 
+	ratePerSec := Config.RatePerSec
+	throttle := time.Tick(time.Second * time.Duration(1.0/ratePerSec))
+
 	for {
 		select {
 		case msg, ok := <-Client.In:
@@ -101,6 +105,7 @@ func handleConnection() {
 			handleMsg(msg)
 
 		case <-t.C:
+			<-throttle // rate limit our Service.Method RPCs
 			Client.Out <- irc.Msg{Cmd: irc.PING, Args: []string{Client.Server}}
 			t = time.NewTimer(pingTime)