func (s *Session) processPresence(stanza *xmpp.ClientPresence) {
gone := false
switch stanza.Type {
case "subscribe":
// This is a subscription request
jid := xmpp.RemoveResourceFromJid(stanza.From)
info(s.term, jid+" wishes to see when you're online. Use '/confirm "+jid+"' to confirm (or likewise with /deny to decline)")
s.pendingSubscribes[jid] = stanza.Id
s.input.AddUser(jid)
return
case "unavailable":
gone = true
case "":
break
default:
return
}
from := xmpp.RemoveResourceFromJid(stanza.From)
if gone {
if _, ok := s.knownStates[from]; !ok {
// They've gone, but we never knew they were online.
return
}
delete(s.knownStates, from)
} else {
if _, ok := s.knownStates[from]; !ok && isAwayStatus(stanza.Show) {
// Skip people who are initially away.
return
}
if lastState, ok := s.knownStates[from]; ok && lastState == stanza.Show {
// No change. Ignore.
return
}
s.knownStates[from] = stanza.Show
}
if !s.config.HideStatusUpdates {
var line []byte
line = append(line, s.term.Escape.Magenta...)
line = append(line, []byte(from)...)
line = append(line, ':')
line = append(line, s.term.Escape.Reset...)
line = append(line, ' ')
if gone {
line = append(line, []byte("offline")...)
} else if len(stanza.Show) > 0 {
line = append(line, []byte(stanza.Show)...)
} else {
line = append(line, []byte("online")...)
}
line = append(line, ' ')
line = append(line, []byte(stanza.Status)...)
line = append(line, '\n')
s.term.Write(line)
}
}
func (s *Session) processClientMessage(stanza *xmpp.ClientMessage) {
from := xmpp.RemoveResourceFromJid(stanza.From)
conversation, ok := s.conversations[from]
if !ok {
conversation = new(otr.Conversation)
conversation.PrivateKey = s.privateKey
s.conversations[from] = conversation
}
out, encrypted, change, toSend, err := conversation.Process([]byte(stanza.Body))
if err != nil {
alert(s.term, "While processing message from "+from+": "+err.Error())
}
for _, msg := range toSend {
s.conn.Send(stanza.From, string(msg))
}
switch change {
case otr.NewKeys:
fpr := conversation.TheirPublicKey.Fingerprint()
info(s.term, fmt.Sprintf("New OTR session with %s established", from))
info(s.term, fmt.Sprintf(" their fingerprint: %x", fpr))
info(s.term, fmt.Sprintf(" session id: %x", conversation.SSID))
knownUserId := s.config.UserIdForFingerprint(fpr)
if len(knownUserId) == 0 {
alert(s.term, "Fingerprint is unknown. You should use /auth or /authqa to verify their identity")
} else {
if knownUserId == from {
info(s.term, "Fingerprint is verified")
} else {
alert(s.term, fmt.Sprintf("Fingerprint is known, but for %s", knownUserId))
}
}
case otr.ConversationEnded:
info(s.term, fmt.Sprintf("%s has ended the secure conversation. You should do likewise with /endotr", from))
case otr.SMPSecretNeeded:
info(s.term, fmt.Sprintf("%s is attempting to authenticate. Please supply mutual shared secret with /smp", from))
if question := conversation.SMPQuestion(); len(question) > 0 {
info(s.term, fmt.Sprintf("%s asks: %s", from, question))
}
case otr.SMPComplete:
info(s.term, fmt.Sprintf("Authentication with %s successful", from))
fpr := conversation.TheirPublicKey.Fingerprint()
if len(s.config.UserIdForFingerprint(fpr)) == 0 {
s.config.KnownFingerprints = append(s.config.KnownFingerprints, KnownFingerprint{fingerprint: fpr, UserId: from})
}
s.config.Save()
}
if len(out) == 0 {
return
}
var line []byte
if encrypted {
line = append(line, s.term.Escape.Green...)
} else {
line = append(line, s.term.Escape.Red...)
}
if s.lastMessageFrom != from {
line = append(line, []byte(from)...)
s.lastMessageFrom = from
}
line = append(line, ':')
line = append(line, s.term.Escape.Reset...)
line = append(line, ' ')
line = append(line, out...)
line = append(line, '\n')
s.term.Write(line)
s.maybeNotify()
}
func (s *Session) processClientMessage(stanza *xmpp.ClientMessage) {
from := xmpp.RemoveResourceFromJid(stanza.From)
if stanza.Type == "error" {
alert(s.term, "Error reported from "+from+": "+stanza.Body)
return
}
conversation, ok := s.conversations[from]
if !ok {
conversation = new(otr.Conversation)
conversation.PrivateKey = s.privateKey
s.conversations[from] = conversation
}
out, encrypted, change, toSend, err := conversation.Receive([]byte(stanza.Body))
if err != nil {
alert(s.term, "While processing message from "+from+": "+err.Error())
s.conn.Send(stanza.From, otr.ErrorPrefix+"Error processing message")
}
for _, msg := range toSend {
s.conn.Send(stanza.From, string(msg))
}
switch change {
case otr.NewKeys:
info(s.term, fmt.Sprintf("New OTR session with %s established at %s", from, time.Now().Format(time.RubyDate)))
printConversationInfo(*s, from, conversation)
case otr.ConversationEnded:
// This is probably unsafe without a policy that _forces_ crypto to
// _everyone_ by default and refuses plaintext. Users might not notice
// their buddy has ended a session, which they have also ended, and they
// might send a plain text message. So we should ensure they _want_ this
// feature and have set it as an explicit preference.
if s.config.OTRAutoTearDown {
if s.conversations[from] == nil {
alert(s.term, fmt.Sprintf("No secure session established; unable to automatically tear down OTR conversation with %s.", from))
break
} else {
info(s.term, fmt.Sprintf("%s has ended the secure conversation.", from))
msgs := conversation.End()
for _, msg := range msgs {
s.conn.Send(from, string(msg))
}
info(s.term, fmt.Sprintf("Secure session with %s has been automatically ended. Messages will be sent in the clear until another OTR session is established.", from))
}
} else {
info(s.term, fmt.Sprintf("%s has ended the secure conversation. You should do likewise with /otr-end %s", from, from))
}
case otr.SMPSecretNeeded:
info(s.term, fmt.Sprintf("%s is attempting to authenticate. Please supply mutual shared secret with /otr-auth user secret", from))
if question := conversation.SMPQuestion(); len(question) > 0 {
info(s.term, fmt.Sprintf("%s asks: %s", from, question))
}
case otr.SMPComplete:
info(s.term, fmt.Sprintf("Authentication with %s successful", from))
fpr := conversation.TheirPublicKey.Fingerprint()
if len(s.config.UserIdForFingerprint(fpr)) == 0 {
s.config.KnownFingerprints = append(s.config.KnownFingerprints, KnownFingerprint{fingerprint: fpr, UserId: from})
}
s.config.Save()
case otr.SMPFailed:
alert(s.term, fmt.Sprintf("Authentication with %s failed", from))
}
if len(out) == 0 {
return
}
detectedOTRVersion := 0
// We don't need to alert about tags encoded inside of messages that are
// already encrypted with OTR
whitespaceTagLength := len(OTRWhitespaceTagStart) + len(OTRWhiteSpaceTagV1)
if !encrypted && len(out) >= whitespaceTagLength {
whitespaceTag := out[len(out)-whitespaceTagLength:]
if bytes.Equal(whitespaceTag[:len(OTRWhitespaceTagStart)], OTRWhitespaceTagStart) {
if bytes.HasSuffix(whitespaceTag, OTRWhiteSpaceTagV1) {
info(s.term, fmt.Sprintf("%s appears to support OTRv1. You should encourage them to upgrade their OTR client!", from))
detectedOTRVersion = 1
}
if bytes.HasSuffix(whitespaceTag, OTRWhiteSpaceTagV2) {
detectedOTRVersion = 2
}
if bytes.HasSuffix(whitespaceTag, OTRWhiteSpaceTagV3) {
detectedOTRVersion = 3
}
}
}
if s.config.OTRAutoStartSession && detectedOTRVersion >= 2 {
info(s.term, fmt.Sprintf("%s appears to support OTRv%d. We are attempting to start an OTR session with them.", from, detectedOTRVersion))
s.conn.Send(from, otr.QueryMessage)
} else if s.config.OTRAutoStartSession && detectedOTRVersion == 1 {
info(s.term, fmt.Sprintf("%s appears to support OTRv%d. You should encourage them to upgrade their OTR client!", from, detectedOTRVersion))
}
var line []byte
if encrypted {
line = append(line, s.term.Escape.Green...)
} else {
line = append(line, s.term.Escape.Red...)
}
var timestamp string
var messageTime time.Time
if stanza.Delay != nil && len(stanza.Delay.Stamp) > 0 {
// An XEP-0203 Delayed Delivery <delay/> element exists for
// this message, meaning that someone sent it while we were
// offline. Let's show the timestamp for when the message was
// sent, rather than time.Now().
messageTime, err = time.Parse(time.RFC3339, stanza.Delay.Stamp)
if err != nil {
alert(s.term, "Can not parse Delayed Delivery timestamp, using quoted string instead.")
timestamp = fmt.Sprintf("%q", stanza.Delay.Stamp)
}
} else {
messageTime = time.Now()
}
if len(timestamp) == 0 {
timestamp = messageTime.Format(time.RubyDate)
}
t := fmt.Sprintf("(%s) %s: ", timestamp, from)
line = append(line, []byte(t)...)
line = append(line, s.term.Escape.Reset...)
line = appendTerminalEscaped(line, stripHTML(out))
line = append(line, '\n')
if s.config.Bell {
line = append(line, '\a')
}
s.term.Write(line)
s.maybeNotify()
}
func Echo(ws *websocket.Conn) {
fmt.Println("socket open")
var recMes message
err := websocket.JSON.Receive(ws, &recMes)
if err != nil {
fmt.Println("Can't receive message")
}
if recMes.Type != "login" {
fmt.Println("not login message")
return
}
userName := strings.Split(recMes.Data["UserName"], "@")
if len(userName) < 2 {
userName = []string{userName[0], ""}
}
xmppConfig := xmpp.Config{nil, nil, nil, nil, false, false, false, []byte("")}
talk, err := xmpp.Dial(recMes.Data["Server"], userName[0], userName[1], recMes.Data["Password"], &xmppConfig)
if err != nil {
fmt.Println("login error")
return
}
senMes := message{"login", nil}
if err := websocket.JSON.Send(ws, senMes); err != nil {
fmt.Println("Can't send")
return
}
fmt.Println("Ready")
rosterReply, _, err := talk.RequestRoster()
if err != nil {
fmt.Println("Can't roster")
}
talk.SignalPresence("")
ses := session{
talk: talk,
ws: ws,
}
stanzaChan := make(chan xmpp.Stanza)
go ses.receiveMessage(stanzaChan)
webSocketChan := make(chan string)
go ses.receiveWebSocket(webSocketChan)
for {
select {
case rosterStanza, ok := <-rosterReply:
var roster []xmpp.RosterEntry
if !ok {
fmt.Println("fail to read roaster")
return
}
if roster, err = xmpp.ParseRoster(rosterStanza); err != nil {
fmt.Println("fail to parse roaster")
return
}
if err := websocket.JSON.Send(ws, rosterMessage{"roster", roster}); err != nil {
fmt.Println("Can't send")
return
}
fmt.Println("Roster information sent to the client")
case rawStanza, ok := <-stanzaChan:
if !ok {
fmt.Println("stanzaChan receive failed")
return
}
switch stanza := rawStanza.Value.(type) {
case *xmpp.ClientMessage:
fmt.Println("Message comming")
if stanza.Body == "" {
break
}
chatMes := message{"chat", map[string]string{"Remote": xmpp.RemoveResourceFromJid(stanza.From), "Text": stanza.Body}}
if err := websocket.JSON.Send(ws, chatMes); err != nil {
fmt.Println("Can't send")
break
}
case *xmpp.ClientPresence:
fmt.Println("ClientPresence comming")
fmt.Println(stanza.From, stanza.Type)
var status string
if len(stanza.Show) > 0 {
status = stanza.Show
} else {
status = "available"
}
preMes := message{"presence", map[string]string{"Remote": xmpp.RemoveResourceFromJid(stanza.From), "Mode": status}}
if err := websocket.JSON.Send(ws, preMes); err != nil {
fmt.Println("Can't send")
return
}
}
case receivedMessage, ok := <-webSocketChan:
if !ok {
fmt.Println("webSocketChan receive failed")
return
}
var sendMes message
if err = json.Unmarshal([]byte(receivedMessage), &sendMes); err != nil {
fmt.Println("Can't receive")
} else {
if err = talk.Send(sendMes.Data["Remote"], sendMes.Data["Text"]); err != nil {
fmt.Println("failed to send")
}
fmt.Println("Message sent" + sendMes.Data["Remote"] + sendMes.Data["Text"])
}
}
}
fmt.Println("function ends")
}