Original sender JID in MUCs (why?)

telegram/handlers.go

@@ -265,7 +265,7 @@ func (c *Client) updateMessageContent(update *client.UpdateMessageContent) {
 			markupFunction,
 		))
 		for _, jid := range jids {
-			gateway.SendMessage(jid, strconv.FormatInt(update.ChatId, 10), text, "e"+strconv.FormatInt(update.MessageId, 10), c.xmpp, nil, 0, false, false)
+			gateway.SendMessage(jid, strconv.FormatInt(update.ChatId, 10), text, "e"+strconv.FormatInt(update.MessageId, 10), c.xmpp, nil, 0, false, false, "")
 		}
 	}
 }

telegram/utils.go

@@ -1046,12 +1046,18 @@ func (c *Client) sendMessageToGateway(chatId int64, message *client.Message, del
 	var isCarbon bool
 	var jids []string
 	var isGroupchat bool
+	var originalFrom string
 	if len(groupChatTos) == 0 {
 		isCarbon = gateway.MessageOutgoingPermissionVersion > 0 && c.Session.Carbons && message.IsOutgoing
 		jids = c.getCarbonFullJids(isCarbon, "")
 	} else {
 		isGroupchat = true
 		jids = groupChatTos
+
+		senderId := c.getSenderId(message)
+		if senderId != 0 {
+			originalFrom = strconv.FormatInt(senderId, 10) + "@" + gateway.Jid.Full()
+		}
 	}
 
 	var text, oob, auxText string
@@ -1138,9 +1144,9 @@ func (c *Client) sendMessageToGateway(chatId int64, message *client.Message, del
 	}
 
 	for _, jid := range jids {
-		gateway.SendMessageWithOOB(jid, from, text, sId, c.xmpp, reply, timestamp, oob, isCarbon, isGroupchat)
+		gateway.SendMessageWithOOB(jid, from, text, sId, c.xmpp, reply, timestamp, oob, isCarbon, isGroupchat, originalFrom)
 		if auxText != "" {
-			gateway.SendMessage(jid, from, auxText, sId, c.xmpp, reply, timestamp, isCarbon, isGroupchat)
+			gateway.SendMessage(jid, from, auxText, sId, c.xmpp, reply, timestamp, isCarbon, isGroupchat, originalFrom)
 		}
 	}
 }
@@ -1768,6 +1774,7 @@ func (c *Client) sendMessagesReverse(chatID int64, messages []*client.Message, p
 				0,
 				false,
 				false,
+				"",
 			)
 		} else {
 			c.sendMessageToGateway(

xmpp/extensions/extensions.go

@@ -248,6 +248,19 @@ type MessageDelayLegacy struct {
 	Stamp   string   `xml:"stamp,attr"`
 }
 
+// MessageAddresses is from XEP-0033
+type MessageAddresses struct {
+	XMLName   xml.Name  `xml:"http://jabber.org/protocol/address addresses"`
+	Addresses []MessageAddress
+}
+
+// MessageAddress is from XEP-0033
+type MessageAddress struct {
+	XMLName xml.Name `xml:"address"`
+	Type    string   `xml:"type,attr"`
+	Jid     string   `xml:"jid,attr"`
+}
+
 // Namespace is a namespace!
 func (c PresenceNickExtension) Namespace() string {
 	return c.XMLName.Space
@@ -430,4 +443,10 @@ func init() {
 		"jabber:x:delay",
 		"x",
 	}, MessageDelayLegacy{})
+
+	// message addresses
+	stanza.TypeRegistry.MapExtension(stanza.PKTMessage, xml.Name{
+		"http://jabber.org/protocol/address",
+		"addresses",
+	}, MessageAddresses{})
 }

xmpp/gateway/gateway.go

@@ -43,26 +43,26 @@ var DirtySessions = false
 var MessageOutgoingPermissionVersion = 0
 
 // SendMessage creates and sends a message stanza
-func SendMessage(to string, from string, body string, id string, component *xmpp.Component, reply *Reply, timestamp int64, isCarbon, isGroupchat bool) {
+func SendMessage(to string, from string, body string, id string, component *xmpp.Component, reply *Reply, timestamp int64, isCarbon, isGroupchat bool, originalFrom string) {
-	sendMessageWrapper(to, from, body, id, component, reply, timestamp, "", isCarbon, isGroupchat)
+	sendMessageWrapper(to, from, body, id, component, reply, timestamp, "", isCarbon, isGroupchat, originalFrom)
 }
 
 // SendServiceMessage creates and sends a simple message stanza from transport
 func SendServiceMessage(to string, body string, component *xmpp.Component) {
-	sendMessageWrapper(to, "", body, "", component, nil, 0, "", false, false)
+	sendMessageWrapper(to, "", body, "", component, nil, 0, "", false, false, "")
 }
 
 // SendTextMessage creates and sends a simple message stanza
 func SendTextMessage(to string, from string, body string, component *xmpp.Component) {
-	sendMessageWrapper(to, from, body, "", component, nil, 0, "", false, false)
+	sendMessageWrapper(to, from, body, "", component, nil, 0, "", false, false, "")
 }
 
 // SendMessageWithOOB creates and sends a message stanza with OOB URL
-func SendMessageWithOOB(to string, from string, body string, id string, component *xmpp.Component, reply *Reply, timestamp int64, oob string, isCarbon bool, isGroupchat bool) {
+func SendMessageWithOOB(to string, from string, body string, id string, component *xmpp.Component, reply *Reply, timestamp int64, oob string, isCarbon bool, isGroupchat bool, originalFrom string) {
-	sendMessageWrapper(to, from, body, id, component, reply, timestamp, oob, isCarbon, isGroupchat)
+	sendMessageWrapper(to, from, body, id, component, reply, timestamp, oob, isCarbon, isGroupchat, originalFrom)
 }
 
-func sendMessageWrapper(to string, from string, body string, id string, component *xmpp.Component, reply *Reply, timestamp int64, oob string, isCarbon bool, isGroupchat bool) {
+func sendMessageWrapper(to string, from string, body string, id string, component *xmpp.Component, reply *Reply, timestamp int64, oob string, isCarbon bool, isGroupchat bool, originalFrom string) {
 	toJid, err := stanza.NewJid(to)
 	if err != nil {
 		log.WithFields(log.Fields{
@@ -149,6 +149,16 @@ func sendMessageWrapper(to string, from string, body string, id string, componen
 			Stamp: time.Unix(timestamp, 0).UTC().Format("20060102T15:04:05"),
 		})
 	}
+	if originalFrom != "" {
+		message.Extensions = append(message.Extensions, extensions.MessageAddresses{
+			Addresses: []extensions.MessageAddress{
+				extensions.MessageAddress{
+					Type: "ofrom",
+					Jid:  originalFrom,
+				},
+			},
+		})
+	}
 
 	if isCarbon {
 		carbonMessage := extensions.ClientMessage{