From 82982189137ecb29c901fda75981365cab1be26b Mon Sep 17 00:00:00 2001
From: x01dc <x01dc@psi.ch>
Date: Mon, 9 Mar 2026 13:19:58 +0100
Subject: [PATCH] added account check at startup

---
 .../startup/post_startup.py                   | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/csaxs_bec/bec_ipython_client/startup/post_startup.py b/csaxs_bec/bec_ipython_client/startup/post_startup.py
index 4f8b145..d560a94 100644
--- a/csaxs_bec/bec_ipython_client/startup/post_startup.py
+++ b/csaxs_bec/bec_ipython_client/startup/post_startup.py
@@ -111,3 +111,34 @@ bec._beamline_mixin._bl_info_register(OperatorInfo)
 # SETUP PROMPTS
 bec._ip.prompts.session_name = _session_name
 bec._ip.prompts.status = 1
+
+# ACCOUNT MISMATCH CHECK
+import os
+
+def _check_account_mismatch():
+    try:
+        active = bec.active_account  # e.g. "p23092"
+        system_user = os.getenv("USER") or os.getlogin()  # e.g. "e23092"
+        if active[1:] != system_user[1:]:
+            print(f"""
+\033[91m\033[1m
+    ██╗    ██╗ █████╗ ██████╗ ███╗   ██╗██╗███╗   ██╗ ██████╗ 
+    ██║    ██║██╔══██╗██╔══██╗████╗  ██║██║████╗  ██║██╔════╝ 
+    ██║ █╗ ██║███████║██████╔╝██╔██╗ ██║██║██╔██╗ ██║██║  ███╗
+    ██║███╗██║██╔══██║██╔══██╗██║╚██╗██║██║██║╚██╗██║██║   ██║
+    ╚███╔███╔╝██║  ██║██║  ██║██║ ╚████║██║██║ ╚████║╚██████╔╝
+    ╚══╝╚══╝ ╚═╝  ╚═╝╚═╝  ╚═╝╚═╝  ╚═══╝╚═╝╚═╝  ╚═══╝ ╚═════╝ 
+
+    ACCOUNT MISMATCH DETECTED!
+    BEC active account : {active}
+    System user        : {system_user}
+
+    Data read and written by the BEC client does not match the data account!
+    Please verify you are logged in with the correct account.
+\033[0m""")
+    except Exception:
+        logger.warning("Failed to verify account match.")
+
+
+if _args.session.lower() == "lamni" or _args.session.lower() == "flomni" or _args.session.lower() == "omny":
+    _check_account_mismatch()
\ No newline at end of file