wsgiprox.py 文件源码

def __init__(self, wsgi,
                 prefix_resolver=None,
                 download_host=None,
                 proxy_host=None,
                 proxy_options=None,
                 proxy_apps=None):

        self._wsgi = wsgi
        self.set_connection_class()

        if isinstance(prefix_resolver, str):
            prefix_resolver = FixedResolver(prefix_resolver)

        self.prefix_resolver = prefix_resolver or FixedResolver()

        self.proxy_apps = proxy_apps or {}

        self.proxy_host = proxy_host or self.DEFAULT_HOST

        #self.has_sni = hasattr(ssl, 'HAS_SNI') and ssl.HAS_SNI
        #self.has_alpn = hasattr(ssl, 'HAS_ALPN') and ssl.HAS_ALPN

        if self.proxy_host not in self.proxy_apps:
            self.proxy_apps[self.proxy_host] = None

        # HTTPS Only Options
        proxy_options = proxy_options or {}

        ca_name = proxy_options.get('ca_name', self.CA_ROOT_NAME)

        ca_file_cache = proxy_options.get('ca_file_cache', self.CA_ROOT_FILE)

        self.ca = CertificateAuthority(ca_name=ca_name,
                                       ca_file_cache=ca_file_cache,
                                       cert_cache=None,
                                       cert_not_before=-3600)

        try:
            self.root_ca_file = self.ca.get_root_pem_filename()
        except Exception as e:
            self.root_ca_file = None

        self.use_wildcard = proxy_options.get('use_wildcard_certs', True)

        if proxy_options.get('enable_cert_download', True):
            download_host = download_host or self.DEFAULT_HOST
            self.proxy_apps[download_host] = CertDownloader(self.ca)

        self.enable_ws = proxy_options.get('enable_websockets', True)
        if WebSocketHandler == object:
            self.enable_ws = None