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package xmpp
import (
"bytes"
"encoding/base64"
"github.com/pkg/errors"
"io"
"os"
"strconv"
"strings"
"dev.narayana.im/narayana/telegabber/persistence"
"dev.narayana.im/narayana/telegabber/xmpp/extensions"
"dev.narayana.im/narayana/telegabber/xmpp/gateway"
log "github.com/sirupsen/logrus"
"gosrc.io/xmpp"
"gosrc.io/xmpp/stanza"
)
func logPacketType(p stanza.Packet) {
log.Warnf("Ignoring packet: %T\n", p)
}
// HandleIq processes an incoming XMPP iq
func HandleIq(s xmpp.Sender, p stanza.Packet) {
iq, ok := p.(stanza.IQ)
if !ok {
logPacketType(p)
return
}
log.Debugf("%#v", iq)
if iq.Type == "get" {
_, ok := iq.Payload.(*extensions.IqVcardTemp)
if ok {
log.WithFields(log.Fields{
"from": iq.From,
"to": iq.To,
}).Warn("VCard request")
fromJid, err := xmpp.NewJid(iq.From)
if err != nil {
log.Error("Invalid from JID!")
return
}
session, ok := sessions[fromJid.Bare()]
if !ok {
log.Error("IQ from stranger")
return
}
toParts := strings.Split(iq.To, "@")
toID, err := strconv.ParseInt(toParts[0], 10, 64)
if err != nil {
log.Error("Invalid IQ to")
return
}
chat, user, err := session.GetContactByID(toID, nil)
if err != nil {
log.Error(err)
return
}
vcard := extensions.IqVcardTemp{}
if chat != nil {
vcard.Fn.Text = chat.Title
if chat.Photo != nil {
path := chat.Photo.Small.Local.Path
file, err := os.Open(path)
if err == nil {
defer file.Close()
buf := new(bytes.Buffer)
binval := base64.NewEncoder(base64.StdEncoding, buf)
_, err = io.Copy(binval, file)
if err == nil {
vcard.Photo.Type.Text = "image/jpeg"
vcard.Photo.Binval.Text = buf.String()
} else {
log.Errorf("Error calculating hash: %v", path)
}
} else if path != "" {
log.Errorf("Photo does not exist: %v", path)
}
}
}
if user != nil {
vcard.Nickname.Text = user.Username
vcard.N.Given.Text = user.FirstName
vcard.N.Family.Text = user.LastName
vcard.Tel.Number.Text = user.PhoneNumber
}
answer := stanza.IQ{
Attrs: stanza.Attrs{
From: iq.To,
To: iq.From,
Id: iq.Id,
Type: "result",
},
Payload: vcard,
}
log.Debugf("%#v", answer)
_ = s.Send(answer)
}
}
}
// HandleMessage processes an incoming XMPP message
func HandleMessage(s xmpp.Sender, p stanza.Packet) {
msg, ok := p.(stanza.Message)
if !ok {
logPacketType(p)
return
}
component, ok := s.(*xmpp.Component)
if !ok {
log.Error("Not a component")
return
}
if msg.Type != "error" && msg.Body != "" {
log.WithFields(log.Fields{
"from": msg.From,
"to": msg.To,
}).Warn("Message")
log.Debugf("%#v", msg)
fromJid, err := xmpp.NewJid(msg.From)
if err != nil {
log.Error("Invalid from JID!")
return
}
session, ok := sessions[fromJid.Bare()]
if !ok {
log.Error("Message from stranger")
return
}
toParts := strings.Split(msg.To, "@")
toID := toParts[0]
if len(toParts) > 1 {
toIDInt, err := strconv.ParseInt(toID, 10, 64)
if err == nil {
session.ProcessOutgoingMessage(toIDInt, msg.Body, 0, msg.From)
return
}
log.WithFields(log.Fields{
"toID": toID,
}).Error(errors.Wrap(err, "Invalid to JID!"))
} else if toID == gateway.Jid.Bare() {
if strings.HasPrefix(msg.Body, "/") {
response := session.ProcessTransportCommand(msg.Body)
if response != "" {
gateway.SendMessage(msg.From, "", response, component)
}
return
}
}
log.Warn("Unknown purpose of the message, skipping")
}
}
// HandlePresence processes an incoming XMPP presence
func HandlePresence(s xmpp.Sender, p stanza.Packet) {
prs, ok := p.(stanza.Presence)
if !ok {
logPacketType(p)
return
}
if prs.Type == "subscribe" {
handleSubscription(s, prs)
}
if prs.To == gateway.Jid.Bare() {
handlePresence(s, prs)
}
}
func handleSubscription(s xmpp.Sender, p stanza.Presence) {
log.WithFields(log.Fields{
"from": p.From,
"to": p.To,
}).Warn("Subscription request")
log.Debugf("%#v", p)
reply := stanza.Presence{Attrs: stanza.Attrs{
From: p.To,
To: p.From,
Id: p.Id,
Type: "subscribed",
}}
_ = s.Send(reply)
}
func handlePresence(s xmpp.Sender, p stanza.Presence) {
presenceType := p.Type
if presenceType == "" {
presenceType = "online"
}
component, ok := s.(*xmpp.Component)
if !ok {
log.Error("Not a component")
return
}
log.WithFields(log.Fields{
"type": presenceType,
"from": p.From,
"to": p.To,
}).Warn("Presence")
log.Debugf("%#v", p)
fromJid, err := xmpp.NewJid(p.From)
if err != nil {
log.Error("Invalid from JID!")
return
}
bareFromJid := fromJid.Bare()
session, ok := getTelegramInstance(bareFromJid, &persistence.Session{}, component)
if !ok {
return
}
switch p.Type {
case "unsubscribed", "unsubscribe":
session.Disconnect()
delete(sessions, bareFromJid)
case "unavailable", "error":
session.Disconnect()
case "", "online":
// due to the weird implentation of go-tdlib wrapper, it won't
// return the client instance until successful authorization
go func() {
err = session.Connect()
if err != nil {
log.Error(errors.Wrap(err, "TDlib connection failure"))
}
}()
}
}
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