From 36bbb829b522082090d4989474f5ec9adab276f5 Mon Sep 17 00:00:00 2001
From: Chteufleur <chteufleur@kingpenguin.tk>
Date: Sat, 16 Jul 2016 09:44:54 +0200
Subject: [PATCH] Auto generation for transaction ID if not provided in HTTP
 request

---
 main.go        |  5 +++++
 xmpp/client.go | 16 ++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/main.go b/main.go
index 1b1b9ad..343e6ee 100644
--- a/main.go
+++ b/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
diff --git a/xmpp/client.go b/xmpp/client.go
index 5bf476d..64aed17 100644
--- a/xmpp/client.go
+++ b/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)
+}