SharePoint: Graph API path-based URLs are not properly quoted

[Anjum48]

Files with characters like "#" in their name are not properly quoted, resulting in 404 errors when they are downloaded.

I'm currently using this monkey patch as a work around:

from urllib.parse import quote

def _patch_sharepoint_downloader_path_quoting():
    """URL-encode the server_relative_path before calling get_by_path().

    Characters like '#' in SharePoint filenames break the Office365 SDK's
    REST URL construction.  Quoting with safe="/" turns '#' into '%23'
    while preserving path separators.
    """
    from unstructured_ingest.processes.connectors.sharepoint import SharepointDownloader

    _original_fetch = SharepointDownloader._fetch_file

    # Skip if already patched
    if getattr(_original_fetch, "_path_quoting_patched", False):
        return

    def _patched_fetch_file(self, file_data):
        # Encode the fullpath so '#' and other URL-unsafe chars are escaped
        if file_data.source_identifiers and file_data.source_identifiers.fullpath:
            file_data.source_identifiers.fullpath = quote(
                file_data.source_identifiers.fullpath, safe="/"
            )
        return _original_fetch(self, file_data)

    _patched_fetch_file._path_quoting_patched = True
    SharepointDownloader._fetch_file = _patched_fetch_file

    logger.info("Patched SharepointDownloader._fetch_file with URL path quoting")