import re


def response_get_destination_filename(response):
    """Get filename from content-disposition header."""
    disposition = response.headers.get('content-disposition')
    if not disposition:
        return None
    filenames = re.findall("filename=(.+)", disposition)
    if not filenames:
        return None
    filename = filenames[0]
    filename = filename.strip('\'"')
    return filename