o ,&]ið ã@sRUdZddlmZddlZddlZddlmZdZded<dd d„Z ddd„Z dS)ajUtilities for safely resolving component asset paths and content types. These helpers are used by server handlers to construct safe absolute paths for component files and to determine the appropriate ``Content-Type`` header for responses. Path resolution prevents directory traversal by normalizing and checking real paths against a component's root directory. é)ÚannotationsN)ÚFinalzapplication/octet-streamz Final[str]Ú _OCTET_STREAMÚcomponent_rootÚstrÚrelative_url_pathÚreturnú str | NonecCsdtj |¡}tj tj ||¡¡}tj |¡}ztj ||g¡|kr%WdSW|Sty1YdSw)a¯Build an absolute path inside ``component_root`` if safe. The function joins ``relative_url_path`` with ``component_root`` and normalizes and resolves symlinks. If the resulting path escapes the component root, ``None`` is returned to indicate a forbidden traversal. Parameters ---------- component_root : str Absolute path to the component's root directory. relative_url_path : str Relative URL path from the component root to the requested file. Returns ------- str or None The resolved absolute path if it stays within ``component_root``; otherwise ``None`` when the path would traverse outside the root. N)ÚosÚpathÚrealpathÚnormpathÚjoinÚ commonpathÚ ValueError)rrÚ root_realÚ candidateÚcandidate_real©rúg/var/www/html/IGF-ODF-V3/venv/lib/python3.10/site-packages/streamlit/web/server/component_file_utils.pyÚbuild_safe_abspath!sÿüþrÚabspathcCs6t |¡\}}|dkr dS|durtS|dur|StS)aûGuess the HTTP ``Content-Type`` for a file path. This logic mirrors Tornado's ``StaticFileHandler`` by respecting encoding metadata from ``mimetypes.guess_type`` and falling back to ``application/octet-stream`` when no specific type can be determined. Parameters ---------- abspath : str Absolute file path used for type detection (only the suffix matters). Returns ------- str Guessed content type string suitable for the ``Content-Type`` header. Úgzipzapplication/gzipN)Ú mimetypesÚ guess_typer)rÚ mime_typeÚencodingrrrÚguess_content_typeDsr)rrrrrr )rrrr)Ú__doc__Ú __future__rrr ÚtypingrrÚ__annotations__rrrrrrÚs #