def __init__(self, client, proxy_infos):
assert(proxy_infos.type == 'socks4'), \
"SOCKS4Proxy expects a socks4 proxy description"
# TODO : implement version 4a of the protocol to allow proxy-side name resolution
assert(client.domain == AF_INET), \
"SOCKS4 CONNECT only handles INET address family"
assert(client.type == SOCK_STREAM), \
"SOCKS4 CONNECT only handles SOCK_STREAM"
assert(client.status == IoStatus.CLOSED), \
"SOCKS4Proxy expects a closed client"
AbstractProxy.__init__(self, client, proxy_infos)
self._transport = TCPClient(self._proxy.host, self._proxy.port)
self._transport.connect("notify::status", self._on_transport_status)
self._transport.connect("error", self._on_transport_error)
self._delimiter_parser = DelimiterParser(self._transport)
self._delimiter_parser.delimiter = 8
self._delimiter_parser.connect("received", self._on_proxy_response)
