chunked_request.py 文件源码

def _get_proxy_config(self):
        """
        Determine if self._url should be passed through a proxy. If so, return
        the appropriate proxy_server and proxy_port. Assumes https_proxy is used
        when ssl_enabled=True.

        """

        proxy_server = None
        proxy_port = None
        ssl_enabled = self._ssl_enabled

        if ssl_enabled:
            proxy = os.environ.get("https_proxy")
        else:
            proxy = os.environ.get("http_proxy")
        no_proxy = os.environ.get("no_proxy")
        no_proxy_url = no_proxy and self._server in no_proxy

        if proxy and not no_proxy_url:
            p = urlparse(proxy)
            proxy_server = p.hostname
            proxy_port = p.port

        return proxy_server, proxy_port