fix auth

app.py

@@ -57,10 +57,10 @@ user_last_submission = {}
 
 def submit_challenge(file, request: gr.Request):
     # Check if the user is logged in via OAuth
-    if request.username is None:
+    user_name = request.username or request.session.get("username")
+    if not user_name:
         raise gr.Error("Please 'Sign in with Hugging Face' at the top of the page to submit.")
     
-    user_name = request.username
     user_key = f"{user_name}" # Use username as the unique key
     
     # Rate Limiting (10 mins)
@@ -92,7 +92,7 @@ def submit_challenge(file, request: gr.Request):
         return f"Error: {str(e)}", sync_leaderboard()
 
 # --- UPDATED UI ---
-with gr.Blocks(theme=gr.themes.Soft()) as demo:
+with gr.Blocks() as demo:
     gr.Markdown("# LLM Lipogram Challenge Portal")
     
     # This displays a login button if the user is not authenticated
@@ -114,4 +114,4 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
         outputs=[output_text, leaderboard_df]
     )
 
-demo.launch()
+demo.launch(theme=gr.themes.Soft())

requirements.txt

@@ -1,4 +1,4 @@
-gradio
-gradio-client
-huggingface-hub
-pandas
+gradio>=4.41.0
+gradio-client>=0.17.0
+huggingface-hub>=0.23.0
+pandas>=2.0.0