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package bslack
import (
"fmt"
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/matterhook"
log "github.com/Sirupsen/logrus"
"github.com/nlopes/slack"
"strings"
"time"
)
type MMMessage struct {
Text string
Channel string
Username string
Raw *slack.MessageEvent
}
type Bslack struct {
mh *matterhook.Client
sc *slack.Client
Config *config.Protocol
rtm *slack.RTM
Plus bool
Remote chan config.Message
protocol string
origin string
si *slack.Info
channels []slack.Channel
}
var flog *log.Entry
var protocol = "slack"
func init() {
flog = log.WithFields(log.Fields{"module": protocol})
}
func New(cfg config.Protocol, origin string, c chan config.Message) *Bslack {
b := &Bslack{}
b.Config = &cfg
b.Remote = c
b.protocol = protocol
b.origin = origin
return b
}
func (b *Bslack) Command(cmd string) string {
return ""
}
func (b *Bslack) Connect() error {
flog.Info("Connecting")
if !b.Config.UseAPI {
b.mh = matterhook.New(b.Config.URL,
matterhook.Config{BindAddress: b.Config.BindAddress})
} else {
b.sc = slack.New(b.Config.Token)
b.rtm = b.sc.NewRTM()
go b.rtm.ManageConnection()
}
flog.Info("Connection succeeded")
go b.handleSlack()
return nil
}
func (b *Bslack) FullOrigin() string {
return b.protocol + "." + b.origin
}
func (b *Bslack) JoinChannel(channel string) error {
// we can only join channels using the API
if b.Config.UseAPI {
_, err := b.sc.JoinChannel(channel)
if err != nil {
return err
}
}
return nil
}
func (b *Bslack) Name() string {
return b.protocol + "." + b.origin
}
func (b *Bslack) Protocol() string {
return b.protocol
}
func (b *Bslack) Origin() string {
return b.origin
}
func (b *Bslack) Send(msg config.Message) error {
flog.Debugf("Receiving %#v", msg)
if msg.FullOrigin == b.FullOrigin() {
return nil
}
nick := config.GetNick(&msg, b.Config)
message := msg.Text
channel := msg.Channel
if b.Config.PrefixMessagesWithNick {
message = nick + " " + message
}
if !b.Config.UseAPI {
matterMessage := matterhook.OMessage{IconURL: b.Config.IconURL}
matterMessage.Channel = channel
matterMessage.UserName = nick
matterMessage.Type = ""
matterMessage.Text = message
err := b.mh.Send(matterMessage)
if err != nil {
flog.Info(err)
return err
}
return nil
}
schannel, err := b.getChannelByName(channel)
if err != nil {
return err
}
np := slack.NewPostMessageParameters()
if b.Config.PrefixMessagesWithNick == true {
np.AsUser = true
}
np.Username = nick
np.IconURL = config.GetIconURL(&msg, b.Config)
b.sc.PostMessage(schannel.ID, message, np)
/*
newmsg := b.rtm.NewOutgoingMessage(message, schannel.ID)
b.rtm.SendMessage(newmsg)
*/
return nil
}
func (b *Bslack) getChannelByName(name string) (*slack.Channel, error) {
if b.channels == nil {
return nil, fmt.Errorf("%s: channel %s not found (no channels found)", b.FullOrigin(), name)
}
for _, channel := range b.channels {
if channel.Name == name {
return &channel, nil
}
}
return nil, fmt.Errorf("%s: channel %s not found", b.FullOrigin(), name)
}
func (b *Bslack) handleSlack() {
flog.Debugf("Choosing API based slack connection: %t", b.Config.UseAPI)
mchan := make(chan *MMMessage)
if b.Config.UseAPI {
go b.handleSlackClient(mchan)
} else {
go b.handleMatterHook(mchan)
}
time.Sleep(time.Second)
flog.Debug("Start listening for Slack messages")
for message := range mchan {
// do not send messages from ourself
if message.Username == b.si.User.Name {
continue
}
texts := strings.Split(message.Text, "\n")
for _, text := range texts {
flog.Debugf("Sending message from %s on %s to gateway", message.Username, b.FullOrigin())
b.Remote <- config.Message{Text: text, Username: message.Username, Channel: message.Channel, Origin: b.origin, Protocol: b.protocol, FullOrigin: b.FullOrigin()}
}
}
}
func (b *Bslack) handleSlackClient(mchan chan *MMMessage) {
count := 0
for msg := range b.rtm.IncomingEvents {
switch ev := msg.Data.(type) {
case *slack.MessageEvent:
// ignore first message
if count > 0 {
flog.Debugf("Receiving from slackclient %#v", ev)
//ev.ReplyTo
channel, err := b.rtm.GetChannelInfo(ev.Channel)
if err != nil {
continue
}
user, err := b.rtm.GetUserInfo(ev.User)
if err != nil {
continue
}
m := &MMMessage{}
m.Username = user.Name
m.Channel = channel.Name
m.Text = ev.Text
m.Raw = ev
mchan <- m
}
count++
case *slack.OutgoingErrorEvent:
flog.Debugf("%#v", ev.Error())
case *slack.ConnectedEvent:
b.channels = ev.Info.Channels
b.si = ev.Info
case *slack.InvalidAuthEvent:
flog.Fatalf("Invalid Token %#v", ev)
default:
}
}
}
func (b *Bslack) handleMatterHook(mchan chan *MMMessage) {
for {
message := b.mh.Receive()
flog.Debugf("receiving from matterhook (slack) %#v", message)
m := &MMMessage{}
m.Username = message.UserName
m.Text = message.Text
m.Channel = message.ChannelName
mchan <- m
}
}
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