warn if using public interface without auth

Signed-off-by: Vladimir Mandic <mandic00@live.com>

CHANGELOG.md

@@ -62,6 +62,7 @@
   - unified standard and modern-ui authentication method & cleanup auth logging  
   - detect & report local/external/public ip addresses if using `listen` mode  
   - detect *docker* enforced limits instead of system limits if running in a container  
+  - warn if using public interface without authentication  
 - **Fixes**:  
   - non-full vae decode  
   - send-to image transfer  

webui.py

@@ -306,6 +306,8 @@ def start_ui():
         gr_tempdir.register_tmp_file(shared.demo, os.path.join(shared.cmd_opts.data_dir, 'x'))
     shared.log.info(f'Local URL: {local_url}')
     if shared.cmd_opts.listen:
+        if not gradio_auth_creds:
+            shared.log.warning('Public interface enabled without authentication')
         proto = 'https' if shared.cmd_opts.tls_keyfile is not None else 'http'
         external_ip = get_external_ip()
         if external_ip is not None: