# Source code for scrapy.core.downloader.handlers.datauri

    from __future__ import annotations

    from typing import TYPE_CHECKING, Any

    from w3lib.url import parse_data_uri

    from scrapy.core.downloader.handlers.base import BaseDownloadHandler
    from scrapy.http import Response, TextResponse
    from scrapy.responsetypes import responsetypes

    if TYPE_CHECKING:
        from scrapy import Request

    class DataURIDownloadHandler(BaseDownloadHandler):
        async def download_request(self, request: Request) -> Response:
            uri = parse_data_uri(request.url)
            respcls = responsetypes.from_mimetype(uri.media_type)

            resp_kwargs: dict[str, Any] = {}
            if issubclass(respcls, TextResponse) and uri.media_type.split("/")[0] == "text":
                charset = uri.media_type_parameters.get("charset")
                resp_kwargs["encoding"] = charset

            return respcls(url=request.url, body=uri.data, **resp_kwargs)