From c0108fd1e15d63abd336c682dc5fdf3497d20597 Mon Sep 17 00:00:00 2001
From: Mabe <report@mabeservices.de>
Date: Sat, 19 Sep 2026 16:48:56 -0700
Subject: [PATCH] Add username availability check and fix cursor initialization
 in user.py; update token validation in api_security.py

---
 auth/api_security.py |  1 +
 auth/user.py         | 15 +++++++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/auth/api_security.py b/auth/api_security.py
index c9825eb..9292629 100644
--- a/auth/api_security.py
+++ b/auth/api_security.py
@@ -80,6 +80,7 @@ def check_token(token):
         except Exception as e:
             logging.error("Token not the same")
             logging.error(e)
+            return valid
 
 
 def check_validaty():
diff --git a/auth/user.py b/auth/user.py
index 8026156..a7a6e9d 100644
--- a/auth/user.py
+++ b/auth/user.py
@@ -3,7 +3,7 @@ import db
 from dotenv import load_dotenv
 import logging
 import os
-
+import mariadb
 #Logging
 
 logging.basicConfig(
@@ -29,7 +29,7 @@ if db_host == None:
     os._exit(1)
 
 db.connect(db_user, db_psswd, db_host, int(db_port), db_name)
-
+cursor = db.connection.cursor()
 
 def create_user(username, password):
     user = username
@@ -67,3 +67,14 @@ def delete_user(username, password):
             logging.info(f"User {username} was successfully deleted")
         except Exception as e:
             logging.error(e)
+
+def check_username(username):
+    try:
+        cursor.execute("SELECT 1 FROM user WHERE username = ?", (username,))
+        exists = cursor.fetchone() is not None
+        return exists  # True if taken, False if available
+    except db.IntegrityError as e:
+        if e.errno == 1062:
+            logging.error("Username taken")
+            return True #If the username is not available it returns True
+    
\ No newline at end of file