Binding does not work with Gree Clivia

[gliter]

Binding does not work with Gree Clivia. The AC does respond to scan package but then does not respond to bind package. Wireshark shows no response.

[cmroche]

Could you show the full debug logs please. @gliter .

[cmroche]

This may be solved in #92

[gliter]

@cmroche sorry for late response. There is really nothing to share. It does respond to scan package with:

{"t":"dev","cid":"","bc":"00000000000000000000000000000000","brand":"gree","catalog":"gree","mac":"<Redacted MAC>","mid":"10001","model":"gree","name":"","lock":0,"series":"gree","vender":"1","ver":"V3.2.M","hid":"362001068254+U-4MWB65VRV2.08.bin","ModelType":"16752730"}

but when you send the bind package there is no data received back on socket.

Thats great about #92 personally I am using OpenHab with Java binding but if this is work I hope you dont mind me or someone porting it there.

[scharfi49]

@cmroche Hi!, i have tested PR https://github.com/cmroche/greeclimate/pull/92, but discovery is not working there. in the datagram_received() is a type Error, self._cipher can "None" => it do not have method decrypt. Also updating this method:

def datagram_received(self, data: bytes, addr: IPAddr) -> None:
        """Handle an incoming datagram."""
        if len(data) == 0:
            return

        obj = json.loads(data)

        if obj.get("pack"):
            if self._cipher is None:
                _LOGGER.error("Cipher object not set, cannot decrypt data")
                return

            obj["pack"] = self._cipher.decrypt(obj["pack"])

        _LOGGER.debug("Received packet from %s:\n<- %s", addr[0], json.dumps(obj))
        self.packet_received(obj, addr)

Throws greeclimate.network - ERROR - Cipher object not set, cannot decrypt data.

During testing i discovered that the discovery process should be processed as before. But using bind() method when we have a discovered device/devices we should use another GCM encryption to communicate with.

We can simply provide cipher in search_on_interface() method: await self.send({"t": "scan"}, (str(bcast_iface), 7000), cipher=CipherV1(b'a3K8Bx%2r8Y7#xDh'))

also we need to declare him in send() method:

if obj.get("t") == "scan":
            self._cipher = cipher

this way on the first case -> discovery we will always use CipherV1 for discover devices

[cmroche]

@scharfi49 There was a bug, as you found :) Would you please test again and report any other issue over here https://github.com/cmroche/greeclimate/pull/92#issuecomment-2227112679