utils.py 文件源码

def is_allowed_homepage(url_string):
    """return True is the current page can be set as homepage"""
    url = urlparse.urlparse(url_string)
    try:
        safe_url = url.path
        resolved = resolve(safe_url)
    except Resolver404:
        return False
    if resolved.url_name in get_allowed_homepages():
        return True
    return False