app.py 文件源码

def validate_url(self, url):
        url_path = urllib.quote(url.path, safe=b"/%")
        url_query = urllib.quote(url.query, safe=b"?=&")

        url = ParseResult(url.scheme, url.netloc, url_path,
                          url.params, url_query, url.fragment)

        has_hostname = url.hostname is not None and len(url.hostname) > 0
        has_http_scheme = url.scheme in ("http", "https")
        has_path = not len(url.path) or url.path.startswith("/")

        if not (has_hostname and has_http_scheme and has_path):
            raise NotSupported("invalid url: %s" % repr(url))

        return url