Add support Gree Versati III Heat Pump - GRS-CQ10Pd/NhH-E 10kw

[peca2345]

No description provided.

[marcinlubojanski]

It works for me on Python3 with gree.py. I have Versati 3 8kW monoblock.
f.e.
python ./gree.py -c my_ip_address -i my_gree_id -k my_key --verbose get AllInWatTemHi AllInWatTemLo All OutWatTemHi AllOutWatTemLo WatBoxTemHi WatBoxTemLo RmoHomTemHi RmoHomTemLo RmoHomTemHi = 121 RmoHomTemLo = 9 AllOutWatTemLo = 0 AllInWatTemHi = 130 AllInWatTemLo = 7 WatBoxTemLo = 5 WatBoxTemHi = 140 AllOutWatTemHi = 131

However I wanted to run it on my mips router where only python2 cryptography modules are available. I have tried to port gree.py into python2 and all seems to work besides proper encoding of "pack", decoding works fine.
I believe the problem is with different sting/bytes usage in python2 vs3.
I have changed this line:
#pack_encrypted = encryptor.update(bytes(pack_padded, encoding='utf-8')) + encryptor.finalize() pack_encrypted = encryptor.update(pack_padded.decode('utf8')) + encryptor.finalize()
but still it doesn't work properly - the encripted string is wrong and as the result I'm not able to even propely connect (getting timeouts). If I paste there already encrypted string (encrypted on my laptop using python3), then it works.
Any help how to properly encode this in python2 is greatly appreciated.

[tomikaa87]

Hi @marcinlubojanski,

If you've setup the encryptor to use AES-128 ECB, it should produce the same result. If you think the byte encoding is wrong, you can try 'ascii' instead of 'utf-8' because most likely the packets won't contain any special characters. You can try printing the encoding result and see if there is any issue.