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package bxmpp
import (
"crypto/tls"
"github.com/42wim/matterbridge/bridge/config"
log "github.com/Sirupsen/logrus"
"github.com/jpillora/backoff"
"github.com/mattn/go-xmpp"
"strings"
"time"
)
type Bxmpp struct {
xc *xmpp.Client
xmppMap map[string]string
*config.BridgeConfig
}
var flog *log.Entry
var protocol = "xmpp"
func init() {
flog = log.WithFields(log.Fields{"module": protocol})
}
func New(cfg *config.BridgeConfig) *Bxmpp {
b := &Bxmpp{BridgeConfig: cfg}
b.xmppMap = make(map[string]string)
return b
}
func (b *Bxmpp) Connect() error {
var err error
flog.Infof("Connecting %s", b.Config.Server)
b.xc, err = b.createXMPP()
if err != nil {
flog.Debugf("%#v", err)
return err
}
flog.Info("Connection succeeded")
go func() {
initial := true
bf := &backoff.Backoff{
Min: time.Second,
Max: 5 * time.Minute,
Jitter: true,
}
for {
if initial {
b.handleXmpp()
initial = false
}
d := bf.Duration()
flog.Infof("Disconnected. Reconnecting in %s", d)
time.Sleep(d)
b.xc, err = b.createXMPP()
if err == nil {
b.Remote <- config.Message{Username: "system", Text: "rejoin", Channel: "", Account: b.Account, Event: config.EVENT_REJOIN_CHANNELS}
b.handleXmpp()
bf.Reset()
}
}
}()
return nil
}
func (b *Bxmpp) Disconnect() error {
return nil
}
func (b *Bxmpp) JoinChannel(channel config.ChannelInfo) error {
b.xc.JoinMUCNoHistory(channel.Name+"@"+b.Config.Muc, b.Config.Nick)
return nil
}
func (b *Bxmpp) Send(msg config.Message) (string, error) {
// ignore delete messages
if msg.Event == config.EVENT_MSG_DELETE {
return "", nil
}
flog.Debugf("Receiving %#v", msg)
if msg.Extra != nil {
if len(msg.Extra["file"]) > 0 {
for _, f := range msg.Extra["file"] {
fi := f.(config.FileInfo)
if fi.Comment != "" {
msg.Text += fi.Comment + ":"
}
if fi.URL != "" {
msg.Text += fi.URL
}
b.xc.Send(xmpp.Chat{Type: "groupchat", Remote: msg.Channel + "@" + b.Config.Muc, Text: msg.Username + msg.Text})
}
return "", nil
}
}
b.xc.Send(xmpp.Chat{Type: "groupchat", Remote: msg.Channel + "@" + b.Config.Muc, Text: msg.Username + msg.Text})
return "", nil
}
func (b *Bxmpp) createXMPP() (*xmpp.Client, error) {
tc := new(tls.Config)
tc.InsecureSkipVerify = b.Config.SkipTLSVerify
tc.ServerName = strings.Split(b.Config.Server, ":")[0]
options := xmpp.Options{
Host: b.Config.Server,
User: b.Config.Jid,
Password: b.Config.Password,
NoTLS: true,
StartTLS: true,
TLSConfig: tc,
//StartTLS: false,
Debug: b.General.Debug,
Session: true,
Status: "",
StatusMessage: "",
Resource: "",
InsecureAllowUnencryptedAuth: false,
//InsecureAllowUnencryptedAuth: true,
}
var err error
b.xc, err = options.NewClient()
return b.xc, err
}
func (b *Bxmpp) xmppKeepAlive() chan bool {
done := make(chan bool)
go func() {
ticker := time.NewTicker(90 * time.Second)
defer ticker.Stop()
for {
select {
case <-ticker.C:
flog.Debugf("PING")
err := b.xc.PingC2S("", "")
if err != nil {
flog.Debugf("PING failed %#v", err)
}
case <-done:
return
}
}
}()
return done
}
func (b *Bxmpp) handleXmpp() error {
var ok bool
done := b.xmppKeepAlive()
defer close(done)
nodelay := time.Time{}
for {
m, err := b.xc.Recv()
if err != nil {
return err
}
switch v := m.(type) {
case xmpp.Chat:
var channel, nick string
if v.Type == "groupchat" {
s := strings.Split(v.Remote, "@")
if len(s) >= 2 {
channel = s[0]
}
s = strings.Split(s[1], "/")
if len(s) == 2 {
nick = s[1]
}
if nick != b.Config.Nick && v.Stamp == nodelay && v.Text != "" && !strings.Contains(v.Text, "</subject>") {
rmsg := config.Message{Username: nick, Text: v.Text, Channel: channel, Account: b.Account, UserID: v.Remote}
rmsg.Text, ok = b.replaceAction(rmsg.Text)
if ok {
rmsg.Event = config.EVENT_USER_ACTION
}
flog.Debugf("Sending message from %s on %s to gateway", nick, b.Account)
b.Remote <- rmsg
}
}
case xmpp.Presence:
// do nothing
}
}
}
func (b *Bxmpp) replaceAction(text string) (string, bool) {
if strings.HasPrefix(text, "/me ") {
return strings.Replace(text, "/me ", "", -1), true
}
return text, false
}
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