Update app.py

app.py

@@ -3,10 +3,13 @@ import subprocess
 import os
 
 def run_katana(url):
-    output_file = "urls.txt"
+    output_file = "/tmp/urls.txt"  # Use /tmp for writable directory
     command = f"katana -u {url} > {output_file}"
-    subprocess.run(command, shell=True, check=True)
-    return output_file
+    try:
+        subprocess.run(command, shell=True, check=True)
+        return output_file
+    except subprocess.CalledProcessError as e:
+        return f"Error running katana: {e}"
 
 # Ensure the /tmp/flagged directory exists
 os.makedirs("/tmp/flagged", exist_ok=True)