Patched code sample

import http.server
import socketserver
import os
from urllib.parse import unquote

class SecureHTTPRequestHandler(http.server.SimpleHTTPRequestHandler):
    def translate_path(self, path):
        # SECURE: Prevent path traversal by validating paths
        path = unquote(path)
        
        # Remove query parameters
        path = path.split('?', 1)[0]
        path = path.split('#', 1)[0]
        
        # Normalize the path and check for traversal attempts
        normalized = os.path.normpath(path)
        if '..' in normalized or normalized.startswith('/'):
            # Block path traversal attempts
            return None
        
        # Restrict to current directory only
        safe_path = os.path.join(os.getcwd(), normalized.lstrip('/'))
        
        # Ensure the path is within the allowed directory
        if not safe_path.startswith(os.getcwd()):
            return None
            
        return safe_path

if __name__ == "__main__":
    PORT = 8000
    with socketserver.TCPServer(("", PORT), SecureHTTPRequestHandler) as httpd:
        print(f"Serving at port {PORT} with path traversal protection")
        httpd.serve_forever()