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|
package birc
import (
"crypto/tls"
"github.com/42wim/matterbridge/bridge/config"
log "github.com/Sirupsen/logrus"
ircm "github.com/sorcix/irc"
"github.com/thoj/go-ircevent"
"sort"
"strconv"
"strings"
"time"
)
//type Bridge struct {
type Birc struct {
i *irc.Connection
ircNick string
ircMap map[string]string
names map[string][]string
ircIgnoreNicks []string
*config.Config
Remote chan config.Message
}
type FancyLog struct {
irc *log.Entry
}
var flog FancyLog
func init() {
flog.irc = log.WithFields(log.Fields{"module": "irc"})
}
func New(config *config.Config, c chan config.Message) *Birc {
b := &Birc{}
b.Config = config
b.Remote = c
b.ircNick = b.Config.IRC.Nick
b.ircMap = make(map[string]string)
b.names = make(map[string][]string)
b.ircIgnoreNicks = strings.Fields(b.Config.IRC.IgnoreNicks)
return b
}
func (b *Birc) Command(msg *config.Message) string {
switch msg.Text {
case "!users":
b.i.SendRaw("NAMES " + msg.Channel)
}
return ""
}
func (b *Birc) Connect() error {
flog.irc.Info("Trying IRC connection")
i := irc.IRC(b.Config.IRC.Nick, b.Config.IRC.Nick)
i.UseTLS = b.Config.IRC.UseTLS
i.UseSASL = b.Config.IRC.UseSASL
i.SASLLogin = b.Config.IRC.NickServNick
i.SASLPassword = b.Config.IRC.NickServPassword
i.TLSConfig = &tls.Config{InsecureSkipVerify: b.Config.IRC.SkipTLSVerify}
if b.Config.IRC.Password != "" {
i.Password = b.Config.IRC.Password
}
i.AddCallback(ircm.RPL_WELCOME, b.handleNewConnection)
err := i.Connect(b.Config.IRC.Server)
if err != nil {
return err
}
flog.irc.Info("Connection succeeded")
b.i = i
return nil
}
func (b *Birc) Name() string {
return "irc"
}
func (b *Birc) Send(msg config.Message) error {
if msg.Origin == "irc" {
return nil
}
if strings.HasPrefix(msg.Text, "!") {
b.Command(&msg)
return nil
}
username := b.ircNickFormat(msg.Username)
b.i.Privmsg(msg.Channel, username+msg.Text)
return nil
}
func (b *Birc) endNames(event *irc.Event) {
channel := event.Arguments[1]
sort.Strings(b.names[channel])
maxNamesPerPost := (300 / b.nicksPerRow()) * b.nicksPerRow()
continued := false
for len(b.names[channel]) > maxNamesPerPost {
b.Remote <- config.Message{Username: b.ircNick, Text: b.formatnicks(b.names[channel][0:maxNamesPerPost], continued), Channel: channel, Origin: "irc"}
b.names[channel] = b.names[channel][maxNamesPerPost:]
continued = true
}
b.Remote <- config.Message{Username: b.ircNick, Text: b.formatnicks(b.names[channel], continued), Channel: channel, Origin: "irc"}
b.names[channel] = nil
}
func (b *Birc) handleNewConnection(event *irc.Event) {
flog.irc.Info("Registering callbacks")
i := b.i
b.ircNick = event.Arguments[0]
i.AddCallback("PRIVMSG", b.handlePrivMsg)
i.AddCallback("CTCP_ACTION", b.handlePrivMsg)
i.AddCallback(ircm.RPL_TOPICWHOTIME, b.handleTopicWhoTime)
i.AddCallback(ircm.RPL_ENDOFNAMES, b.endNames)
i.AddCallback(ircm.RPL_NAMREPLY, b.storeNames)
i.AddCallback(ircm.NOTICE, b.handleNotice)
i.AddCallback(ircm.RPL_MYINFO, func(e *irc.Event) { flog.irc.Infof("%s: %s", e.Code, strings.Join(e.Arguments[1:], " ")) })
i.AddCallback("PING", func(e *irc.Event) {
i.SendRaw("PONG :" + e.Message())
flog.irc.Debugf("PING/PONG")
})
if b.Config.Mattermost.ShowJoinPart {
i.AddCallback("JOIN", b.handleJoinPart)
i.AddCallback("PART", b.handleJoinPart)
}
i.AddCallback("*", b.handleOther)
b.setupChannels()
}
func (b *Birc) handleJoinPart(event *irc.Event) {
//b.Send(b.ircNick, b.ircNickFormat(event.Nick)+" "+strings.ToLower(event.Code)+"s "+event.Message(), b.getMMChannel(event.Arguments[0]))
}
func (b *Birc) handleNotice(event *irc.Event) {
if strings.Contains(event.Message(), "This nickname is registered") {
b.i.Privmsg(b.Config.IRC.NickServNick, "IDENTIFY "+b.Config.IRC.NickServPassword)
}
}
func (b *Birc) handleOther(event *irc.Event) {
flog.irc.Debugf("%#v", event)
}
func (b *Birc) handlePrivMsg(event *irc.Event) {
flog.irc.Debugf("handlePrivMsg() %s %s", event.Nick, event.Message())
msg := ""
if event.Code == "CTCP_ACTION" {
msg = event.Nick + " "
}
msg += event.Message()
b.Remote <- config.Message{Username: event.Nick, Text: msg, Channel: event.Arguments[0], Origin: "irc"}
}
func (b *Birc) handleTopicWhoTime(event *irc.Event) {
parts := strings.Split(event.Arguments[2], "!")
t, err := strconv.ParseInt(event.Arguments[3], 10, 64)
if err != nil {
flog.irc.Errorf("Invalid time stamp: %s", event.Arguments[3])
}
user := parts[0]
if len(parts) > 1 {
user += " [" + parts[1] + "]"
}
flog.irc.Infof("%s: Topic set by %s [%s]", event.Code, user, time.Unix(t, 0))
}
func (b *Birc) ircNickFormat(nick string) string {
flog.irc.Debug("ircnick", nick)
if nick == b.ircNick {
return nick
}
if b.Config.IRC.RemoteNickFormat == "" {
return "irc-" + nick
}
return strings.Replace(b.Config.IRC.RemoteNickFormat, "{NICK}", nick, -1)
}
func (b *Birc) nicksPerRow() int {
if b.Config.Mattermost.NicksPerRow < 1 {
return 4
}
return b.Config.Mattermost.NicksPerRow
}
func (b *Birc) setupChannels() {
for _, val := range b.Config.Channel {
flog.irc.Infof("Joining %s as %s", val.IRC, b.ircNick)
b.i.Join(val.IRC)
}
}
func (b *Birc) storeNames(event *irc.Event) {
channel := event.Arguments[2]
b.names[channel] = append(
b.names[channel],
strings.Split(strings.TrimSpace(event.Message()), " ")...)
}
func (b *Birc) formatnicks(nicks []string, continued bool) string {
switch b.Config.Mattermost.NickFormatter {
case "table":
return tableformatter(nicks, b.nicksPerRow(), continued)
default:
return plainformatter(nicks, b.nicksPerRow())
}
}
|
