feat: Add support for multiple yubikeys

server.py

@@ -37,6 +37,10 @@ Session(app)
 YUBICO_CLIENT_ID = os.getenv("YUBICO_CLIENT_ID")
 YUBICO_SECRET_KEY = os.getenv("YUBICO_SECRET_KEY")
 YUBIKEY_ID = os.getenv("YUBIKEY_ID")  # The first 12 characters of your YubiKey OTP
+if not YUBIKEY_ID and os.getenv("YUBIKEY_IDS"):
+    YUBIKEY_IDS = os.getenv("YUBIKEY_IDS","").split(",")
+else:
+    YUBIKEY_IDS = [YUBIKEY_ID]
 
 # Authentication function
 def login_required(f):
@@ -111,7 +115,7 @@ def login():
         otp = request.form.get("otp", "")
         
         # Verify the first 12 characters of the OTP match the expected YubiKey ID
-        if not otp or len(otp) < 12 or otp[:12] != YUBIKEY_ID:
+        if not otp or len(otp) < 12 or (otp[:12] not in YUBIKEY_IDS):
             error = "Invalid YubiKey OTP"
         else:
             try:
@@ -245,4 +249,4 @@ def not_found(e):
 
 # endregion
 if __name__ == "__main__":
-    app.run(debug=True, port=5000, host="0.0.0.0")
+    app.run(debug=True, port=5000, host="127.0.0.1")