From 28260274a17f46592ef7fdd0d20491e0d323110d Mon Sep 17 00:00:00 2001
From: Ju-Wiluis William Rodriguez Hernandez <jwrodriguezh.externo@bcds.net>
Date: Mon, 15 Jul 2024 10:17:45 +0200
Subject: [PATCH] Added Opaque Tokens

---
 auth/opaque.go | 18 ++++++++++++++++++
 redis/redis.go |  2 +-
 2 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 auth/opaque.go

diff --git a/auth/opaque.go b/auth/opaque.go
new file mode 100644
index 0000000..b320364
--- /dev/null
+++ b/auth/opaque.go
@@ -0,0 +1,18 @@
+package auth
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"fmt"
+)
+
+func GenerateOpaqueToken(length int) (string, error) {
+	// Crea un slice de bytes de longitud especificada
+	token := make([]byte, length)
+	// Llena el slice de bytes con datos aleatorios
+	if _, err := rand.Read(token); err != nil {
+		return "", fmt.Errorf("error generating token: %v", err)
+	}
+	// Codifica el slice de bytes en una cadena base64
+	return base64.URLEncoding.EncodeToString(token), nil
+}
diff --git a/redis/redis.go b/redis/redis.go
index 1c1c7c1..78f40ff 100644
--- a/redis/redis.go
+++ b/redis/redis.go
@@ -26,7 +26,7 @@ func GetInstance() *redis.Client {
 }
 
 func GenerateToken(userId string) (string, error) {
-	token := auth.GenerateJWT(auth.User{Id: userId})
+	token, _ := auth.GenerateOpaqueToken(32)
 	err := GetInstance().Set(context.Background(), fmt.Sprintf("auth_token:%s", token), userId, 5*time.Minute).Err()
 	if err != nil {
 		return "", err