handler.go

func Authenticated(c *gin.Context) {
	session := sessions.Default(c)
	u := session.Get("user")
	if u != nil {
		user := u.(models.User)
		if user.IsAuthenticated {
			c.Next()
			return
		}
	}
	c.HTML(http.StatusOK, "index", gin.H{
		"title": "Hi! GoBlog.",
		"error": "Restricted area, please login first.",
	})
	c.Abort()
}