From 5a762ad918927274499020fa13dc77e41a646918 Mon Sep 17 00:00:00 2001
From: Whispering Wind <151555003+ReturnFI@users.noreply.github.com>
Date: Wed, 20 Aug 2025 23:45:01 +0330
Subject: [PATCH] fix(core): allow underscores in usernames

---
 core/scripts/hysteria2/add_user.py   | 4 ++--
 core/scripts/hysteria2/bulk_users.py | 5 +++--
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/core/scripts/hysteria2/add_user.py b/core/scripts/hysteria2/add_user.py
index 67a041e..ec23b0a 100644
--- a/core/scripts/hysteria2/add_user.py
+++ b/core/scripts/hysteria2/add_user.py
@@ -60,8 +60,8 @@ def add_user(username, traffic_gb, expiration_days, password=None, creation_date
             print("Invalid date. Please provide a valid date in YYYY-MM-DD format.")
             return 1
 
-    if not re.match(r"^[a-zA-Z0-9]+$", username):
-        print("Error: Username can only contain letters and numbers.")
+    if not re.match(r"^[a-zA-Z0-9_]+$", username):
+        print("Error: Username can only contain letters, numbers, and underscores.")
         return 1
 
     if not os.path.isfile(USERS_FILE):
diff --git a/core/scripts/hysteria2/bulk_users.py b/core/scripts/hysteria2/bulk_users.py
index e8fdca1..b1f4618 100644
--- a/core/scripts/hysteria2/bulk_users.py
+++ b/core/scripts/hysteria2/bulk_users.py
@@ -5,6 +5,7 @@ import sys
 import os
 import subprocess
 import argparse
+import re
 from datetime import datetime
 from init_paths import *
 from paths import *
@@ -51,8 +52,8 @@ def add_bulk_users(traffic_gb, expiration_days, count, prefix, start_number, unl
                 username = f"{prefix}{start_number + i}"
                 username_lower = username.lower()
 
-                if not username_lower.isalnum():
-                    print(f"Error: Generated username '{username}' contains invalid characters. Please use an alphanumeric prefix.")
+                if not re.match(r"^[a-zA-Z0-9_]+$", username_lower):
+                    print(f"Error: Generated username '{username}' contains invalid characters. Use only letters, numbers, and underscores.")
                     continue
 
                 if username_lower in existing_users_lower or username_lower in new_users_to_add: