parse wifi settings ndef record

[prattom]

How can I parse following wifi ndef record? I old library we could do it following manner data = bytearray("\x10J\x00\x01\x10\x10\x0e\x002\x10&\x00\x01\x01\x10E\x00\x04Wxyz\x10\x03\x00\x02\x00\x01\x10\x0f\x00\x02\x00\x01\x10'\x00\x0bAbcdefg1234\x10 \x00\x06\xff\xff\xff\xff\xff\xff") record = nfc.ndef.Record('application/vnd.wfa.wsc', '1', data) print nfc.ndef.WifiConfigRecord(record).pretty()

[nehpetsde]

This will be a few more steps:

>>> data = bytearray("\x10J\x00\x01\x10\x10\x0e\x002\x10&\x00\x01\x01\x10E\x00\x04Wxyz\x10\x03\x00\x02\x00\x01\x10\x0f\x00\x02\x00\x01\x10'\x00\x0bAbcdefg1234\x10 \x00\x06\xff\xff\xff\xff\xff\xff")
>>> octets = b''.join(ndef.message_encoder([ndef.Record('application/vnd.wfa.wsc', '1', data)]))
>>> record = list(ndef.message_decoder(octets))[0]
>>> str(record)
"NDEF Wifi Simple Config Record ID '1' Attributes 0x104A 0x100E"
>>> [name for name in record.attribute_names if name in record]
['credential', 'version-1']
>>> credential = record.get_attribute('credential')
>>> [name for name in credential.attribute_names if name in credential]
['network-index', 'authentication-type', 'encryption-type', 'ssid', 'network-key', 'mac-address']
>>> str(credential.get_attribute('ssid'))
'SSID 57:78:79:7A'

Usually you'll get octets from somewhere and not data, so it all starts with decoding. The pretty print is completely gone as it had become impossible to maintain and was subjective anyway.

[prattom]

Thanks Stephen for your quick response

[jctlmm]

Is there an "easier" (i.e. readable) way to parse these records? In the past I used to have something like this:

if record.type == 'application/vnd.wfa.wsc': settings['network-name'] = nfc.ndef.WifiConfigRecord(record).credential['network-name'] settings['network-key'] = nfc.ndef.WifiConfigRecord(record).credential['network-key'] settings['authentication'] = nfc.ndef.WifiConfigRecord(record).credential['authentication'] settings['encryption'] = nfc.ndef.WifiConfigRecord(record).credential['encryption']

[nehpetsde]

Here's the equivalent with ndeflib:

if record.type == 'application/vnd.wfa.wsc:
    credential = record.get_attribute('credential')
    settings['network-name'] = credential.get_attribute('ssid')
    settings['network-key'] = credential.get_attribute('network-key')
    settings['authentication'] = credential.get_attribute('authentication-type')
    settings['encryption'] = credential.get_attribute('encryption-type')

[jctlmm]

Thank you!