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package xmpp
import (
"encoding/xml"
"github.com/pkg/errors"
"dev.narayana.im/narayana/telegabber/config"
"dev.narayana.im/narayana/telegabber/persistence"
"dev.narayana.im/narayana/telegabber/telegram"
log "github.com/sirupsen/logrus"
"github.com/soheilhy/args"
"gosrc.io/xmpp"
"gosrc.io/xmpp/stanza"
)
var jid *xmpp.Jid
var tgConf config.TelegramConfig
var sessions map[string]telegram.Client
var queue map[string]*stanza.Presence
var db persistence.SessionsYamlDB
// NewComponent starts a new component and wraps it in
// a stream manager that you should start yourself
func NewComponent(conf config.XMPPConfig, tc config.TelegramConfig) (*xmpp.StreamManager, error) {
var err error
jid, err = xmpp.NewJid(conf.Jid)
if err != nil {
return nil, err
}
tgConf = tc
err = loadSessions(conf.Db)
if err != nil {
return nil, err
}
options := xmpp.ComponentOptions{
Address: conf.Host + ":" + conf.Port,
Domain: conf.Jid,
Secret: conf.Password,
Name: "telegabber",
}
router := xmpp.NewRouter()
router.HandleFunc("iq", HandleIq)
router.HandleFunc("presence", HandlePresence)
router.HandleFunc("message", HandleMessage)
component, err := xmpp.NewComponent(options, router)
if err != nil {
return nil, err
}
cm := xmpp.NewStreamManager(component, nil)
go maintenance(component)
return cm, nil
}
func maintenance(component *xmpp.Component) {
probeType := SPType("probe")
for jid := range sessions {
sendPresence(component, jid, probeType)
}
}
func loadSessions(dbPath string) error {
var err error
sessions = make(map[string]telegram.Client)
db, err = persistence.LoadSessions(dbPath)
if err != nil {
return err
}
db.Transaction(func() bool {
for jid, session := range db.Data.Sessions {
getTelegramInstance(jid, &session)
}
return false
}, persistence.SessionMarshaller)
return nil
}
func getTelegramInstance(jid string, savedSession *persistence.Session) (telegram.Client, bool) {
session, ok := sessions[jid]
if !ok {
session, err := telegram.NewClient(tgConf, jid, savedSession)
if err != nil {
log.Error(errors.Wrap(err, "TDlib initialization failure"))
return session, false
}
sessions[jid] = session
}
return session, true
}
// SPFrom is a Telegram user id
var SPFrom = args.NewString()
// SPType is a presence type
var SPType = args.NewString()
// SPShow is a availability status
var SPShow = args.NewString()
// SPStatus is a verbose status
var SPStatus = args.NewString()
// SPNickname is a XEP-0172 nickname
var SPNickname = args.NewString()
// SPPhoto is a XEP-0153 hash of avatar in vCard
var SPPhoto = args.NewString()
// SPImmed skips queueing
var SPImmed = args.NewBool(args.Default(true))
func newPresence(bareJid string, to string, args ...args.V) stanza.Presence {
var presenceFrom string
if SPFrom.IsSet(args) {
presenceFrom = SPFrom.Get(args) + "@" + bareJid
} else {
presenceFrom = bareJid
}
presence := stanza.Presence{Attrs: stanza.Attrs{
From: presenceFrom,
To: to,
}}
if SPType.IsSet(args) {
presence.Attrs.Type = stanza.StanzaType(SPType.Get(args))
}
if SPShow.IsSet(args) {
presence.Show = stanza.PresenceShow(SPShow.Get(args))
}
if SPStatus.IsSet(args) {
presence.Status = SPStatus.Get(args)
}
if SPNickname.IsSet(args) {
presence.Extensions = append(presence.Extensions, PresenceNickExtension{
Text: SPNickname.Get(args),
})
}
if SPPhoto.IsSet(args) {
presence.Extensions = append(presence.Extensions, PresenceXVCardUpdateExtension{
Photo: PresenceXVCardUpdatePhoto{
Text: SPPhoto.Get(args),
},
})
}
return presence
}
func sendPresence(component *xmpp.Component, to string, args ...args.V) {
var logFrom string
bareJid := jid.Bare()
if SPFrom.IsSet(args) {
logFrom = SPFrom.Get(args)
} else {
logFrom = bareJid
}
log.WithFields(log.Fields{
"type": SPType.Get(args),
"from": logFrom,
"to": to,
}).Info("Got presence")
presence := newPresence(bareJid, to, args...)
// explicit check, as marshalling is expensive
if log.GetLevel() == log.DebugLevel {
log.Debug(xml.Marshal(presence))
}
immed := SPImmed.Get(args)
if immed {
component.Send(presence)
} else {
queue[presence.From+presence.To] = &presence
}
}
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