def get_filepath_or_buffer(filepath_or_buffer, encoding=None,
                           compression=None, mode=None):
    """
    If the filepath_or_buffer is a url, translate and return the buffer.
    Otherwise passthrough.

    Parameters
    ----------
    filepath_or_buffer : a url, filepath (str, py.path.local or pathlib.Path),
                         or buffer
    compression : {{'gzip', 'bz2', 'zip', 'xz', None}}, optional
    encoding : the encoding to use to decode bytes, default is 'utf-8'
    mode : str, optional

    Returns
    -------
    tuple of ({a filepath_ or buffer or S3File instance},
              encoding, str,
              compression, str,
              should_close, bool)
    """
    filepath_or_buffer = _stringify_path(filepath_or_buffer)

    if _is_url(filepath_or_buffer):
        req = urlopen(filepath_or_buffer)
        content_encoding = req.headers.get('Content-Encoding', None)
        if content_encoding == 'gzip':
            # Override compression based on Content-Encoding header
            compression = 'gzip'
        reader = BytesIO(req.read())
        req.close()
        return reader, encoding, compression, True

    if is_s3_url(filepath_or_buffer):
        from pandas.io import s3
        return s3.get_filepath_or_buffer(filepath_or_buffer,
                                         encoding=encoding,
                                         compression=compression,
                                         mode=mode)

    if is_gcs_url(filepath_or_buffer):
        from pandas.io import gcs
        return gcs.get_filepath_or_buffer(filepath_or_buffer,
                                          encoding=encoding,
                                          compression=compression,
                                          mode=mode)

    if isinstance(filepath_or_buffer, (str, bytes, mmap.mmap)):
        return _expand_user(filepath_or_buffer), None, compression, False

    if not is_file_like(filepath_or_buffer):
        msg = "Invalid file path or buffer object type: {_type}"
        raise ValueError(msg.format(_type=type(filepath_or_buffer)))

    return filepath_or_buffer, None, compression, False
If the filepath_or_buffer is a url, translate and return the buffer.
    Otherwise passthrough.

    Parameters
    ----------
    filepath_or_buffer : a url, filepath (str, py.path.local or pathlib.Path),
                         or buffer
    compression : {{'gzip', 'bz2', 'zip', 'xz', None}}, optional
    encoding : the encoding to use to decode bytes, default is 'utf-8'
    mode : str, optional

    Returns
    -------
    tuple of ({a filepath_ or buffer or S3File instance},
              encoding, str,
              compression, str,
              should_close, bool)