__init__.py 文件源码

def proxy_info_from_url(url, method='http'):
    """
    Construct a ProxyInfo from a URL (such as http_proxy env var)
    """
    url = urlparse.urlparse(url)
    username = None
    password = None
    port = None
    if '@' in url[1]:
        ident, host_port = url[1].split('@', 1)
        if ':' in ident:
            username, password = ident.split(':', 1)
        else:
            password = ident
    else:
        host_port = url[1]
    if ':' in host_port:
        host, port = host_port.split(':', 1)
    else:
        host = host_port

    if port:
        port = int(port)
    else:
        port = dict(https=443, http=80)[method]

    proxy_type = 3 # socks.PROXY_TYPE_HTTP
    return ProxyInfo(
        proxy_type = proxy_type,
        proxy_host = host,
        proxy_port = port,
        proxy_user = username or None,
        proxy_pass = password or None,
    )