Method handle_raw_input

django/core/files/uploadhandler.py:199–223

Use the content_length to signal whether or not this handler should be used.

(
        self, input_data, META, content_length, boundary, encoding=None
    )

    """

    def handle_raw_input(
        self, input_data, META, content_length, boundary, encoding=None
    ):
        """
        Use the content_length to signal whether or not this handler should be
        used.
        """
        # If the post is too large, we cannot use the Memory handler.
        # Content-Length can be absent or understated (for example
        # `Transfer-Encoding: chunked` on ASGI), so for seekable streams (such
        # as SpooledTemporaryFile on ASGI), check the actual size.

        stream = getattr(input_data, "_stream", input_data)
        try:
            content_length = stream.seek(0, os.SEEK_END)
        except (UnsupportedOperation, AttributeError):
            # Cannot seek; fall back to the Content-Length parameter.
            # On WSGI the stream enforces this value so it is trustworthy.
            pass
        else:
            stream.seek(0)
        self.activated = (
            content_length is not None
            and content_length <= settings.FILE_UPLOAD_MAX_MEMORY_SIZE
        )

    def new_file(self, *args, **kwargs):
        super().new_file(*args, **kwargs)