func handleAuth(irc *goirc.Connection) {
// place a callback on nickserv identification and wait until it is done
if cfg.Irc.Nickpass != "" {
identwaiter := make(chan bool)
irc.AddCallback("NOTICE", func(e *goirc.Event) {
re := regexp.MustCompile("NickServ IDENTIFY")
if e.Nick == "NickServ" && re.MatchString(e.Message()) {
irc.Privmsgf("NickServ", "IDENTIFY %s", cfg.Irc.Nickpass)
}
reaccepted := regexp.MustCompile("(?i)Password accepted")
if e.Nick == "NickServ" && reaccepted.MatchString(e.Message()) {
identwaiter <- true
}
})
for {
select {
case <-identwaiter:
goto identified
case <-time.After(5 * time.Second):
irc.Privmsgf("NickServ", "IDENTIFY %s", cfg.Irc.Nickpass)
}
}
identified:
irc.ClearCallback("NOTICE")
close(identwaiter)
}
return
}
func watchUntappd(irc *goirc.Connection) {
var (
userEvents []string
err error
)
lastCheckins := make(map[string]float64)
for {
for _, user := range cfg.Untappd.Users {
// store the last checkin ID, to avoid printing the same checkin twice
var lastcheckin float64
if _, ok := lastCheckins[user]; ok {
lastcheckin = lastCheckins[user]
}
if cfg.Untappd.Debug {
fmt.Println("query untappd activity for", user, "with last checkin set to", lastcheckin)
}
userEvents, lastCheckins[user], err = getUntappdActivityFor(user, lastcheckin)
if err != nil {
log.Println("Failed to get", user, "'s Untappd activity:", err)
} else {
for _, ev := range userEvents {
irc.Privmsgf(cfg.Irc.Channel, "%s", ev)
}
}
time.Sleep(60 * time.Second)
}
}
}
func watchGithub(irc *goirc.Connection) {
var err error
// start the github watcher
evchan := make(chan string)
githubCli := makeGithubClient(cfg.Github.Token)
for _, repo := range cfg.Github.Repos {
splitted := strings.Split(repo, "/")
if len(splitted) != 2 {
irc.Privmsgf(cfg.Irc.Channel, "Invalid repository syntax '%s'. Must be <owner>/<reponame>", repo)
continue
}
// don't run everything at once, we've got time...
time.Sleep(time.Second)
go func() {
for {
err = followRepoEvents(githubCli, splitted[0], splitted[1], evchan)
if err != nil {
log.Println("github follower crashed with error", err)
}
time.Sleep(60 * time.Second)
}
}()
}
go func() {
for ev := range evchan {
// no more than one post per second
time.Sleep(time.Second)
irc.Privmsgf(cfg.Irc.Channel, "%s", ev)
}
}()
}
// WelcomeCallback is a PrivMsgCallback for the welcome event 001, join channels when we're logged in
func WelcomeCallback(con *irc.Connection) {
con.AddCallback("001", func(e *irc.Event) {
con.Privmsgf("NickServ", "identify %s", config.IRCNickPass)
time.Sleep(time.Second * 15) // Need to wait a little for the registration to take effect
for _, room := range config.IRCChannels {
con.Join(room)
log.Printf("Connected to channel %s\n", room)
}
})
}
func githubPrintReposList(irc *goirc.Connection) {
list := "list of followed github repositories: "
for _, repo := range cfg.Github.Repos {
list += repo + ", "
if len(list) > 300 {
irc.Privmsgf(cfg.Irc.Channel, "%s", list)
list = ""
}
}
if len(list) > 0 {
irc.Privmsgf(cfg.Irc.Channel, "%s", list)
}
return
}
func fetchPageTitles(irc *goirc.Connection) {
irc.AddCallback("PRIVMSG", func(e *goirc.Event) {
rehttp := regexp.MustCompile("(https?://.+)")
if rehttp.MatchString(e.Message()) {
url := rehttp.FindStringSubmatch(e.Message())
if len(url) < 2 {
return
}
title := fetchTitle(url[1])
log.Printf("Retrieved tile '%s' from url %s\n", title, url[1])
if title != "" {
irc.Privmsgf(cfg.Irc.Channel, "Title: %s", title)
}
}
})
return
}
func main() {
var (
irc *goirc.Connection
err error
)
var configFile = flag.String("c", "r2d2.cfg", "Load configuration from file")
flag.Parse()
_, err = os.Stat(*configFile)
if err != nil {
log.Fatal("%v", err)
os.Exit(1)
}
err = gcfg.ReadFileInto(&cfg, *configFile)
if err != nil {
log.Fatal("Error in configuration file: %v", err)
os.Exit(1)
}
irc = goirc.IRC(cfg.Irc.Nick, cfg.Irc.Nick)
irc.UseTLS = cfg.Irc.TLS
irc.VerboseCallbackHandler = cfg.Irc.Debug
irc.Debug = cfg.Irc.Debug
err = irc.Connect(cfg.Irc.Server)
if err != nil {
log.Fatal("Connection to IRC server failed: %v", err)
os.Exit(1)
}
// block while performing authentication
handleAuth(irc)
// we are identified, let's continue
if cfg.Irc.ChannelPass != "" {
// if a channel pass is used, craft a join command
// of the form "&<channel>; <key>"
irc.Join(cfg.Irc.Channel + " " + cfg.Irc.ChannelPass)
} else {
irc.Join(cfg.Irc.Channel)
}
if cfg.Irc.Debug {
irc.Privmsg(cfg.Irc.Channel, "beep beedibeep dibeep")
}
go watchGithub(irc)
go watchUntappd(irc)
go fetchPageTitles(irc)
initMaxmind()
// add callback that captures messages sent to bot
terminate := make(chan bool)
irc.AddCallback("PRIVMSG", func(e *goirc.Event) {
re := regexp.MustCompile("^" + cfg.Irc.Nick + ":(.+)$")
if re.MatchString(e.Message()) {
parsed := re.FindStringSubmatch(e.Message())
if len(parsed) != 2 {
return
}
req := strings.Trim(parsed[1], " ")
resp := handleRequest(e.Nick, req, irc)
if resp != "" {
irc.Privmsgf(cfg.Irc.Channel, "%s: %s", e.Nick, resp)
}
}
})
<-terminate
irc.Loop()
irc.Disconnect()
}