Auto generation for transaction ID if not provided in HTTP request

main.go

@@ -76,6 +76,11 @@ func request() {
 		client.Domain = getChanString(http.ChanRequest)
 		client.Transaction = getChanString(http.ChanRequest)
 
+		if client.Transaction == "" {
+			// Random transaction ID generation
+			client.Transaction = xmpp.SessionID()
+		}
+
 		chanResult := <-http.ChanRequest
 		if v, ok := chanResult.(chan bool); ok {
 			client.ChanReply = v

xmpp/client.go

@@ -3,10 +3,15 @@ package xmpp
 import (
 	"git.kingpenguin.tk/chteufleur/go-xmpp.git/src/xmpp"
 
+	"crypto/rand"
 	"log"
 	"strconv"
 )
 
+const (
+	dictionary = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+)
+
 type Client struct {
 	JID         string
 	Method      string
@@ -49,3 +54,14 @@ func (client *Client) askViaMessage() {
 	WaitMessageAnswers[client.Transaction] = client
 	comp.Out <- m
 }
+
+func SessionID() string {
+	var bytes = make([]byte, 8)
+	if _, err := rand.Read(bytes); err != nil {
+		panic(err)
+	}
+	for k, v := range bytes {
+		bytes[k] = dictionary[v%byte(len(dictionary))]
+	}
+	return string(bytes)
+}