def printer():
device_address = os.urandom(8).encode('hex')
xor = bitshuffle.hardware_xor_from_device_address(device_address)
secret = os.urandom(5).encode('hex')
cc = claiming.encode(xor, int(secret, 16))
printer = hardware.Printer(
device_address=device_address,
hardware_xor=xor,
)
db.session.add(printer)
db.session.commit()
def out(x):
x.write(' address: {}\n'.format(device_address))
x.write(' DB id: {}\n'.format(printer.id))
x.write(' secret: {}\n'.format(secret))
x.write(' xor: {}\n'.format(xor))
x.write(' claim code: {}\n'.format(cc))
path = device_address + '.printer'
with open(path, 'w') as f:
out(f)
out(sys.stdout)
print('\nCreated printer and saved as {}'.format(path))
def _decode_bridge_event(data):
"""Decodes a single bridge event from data.
:param data: A python dictionary, as decoded from json.
"""
try:
name = data['json_payload']['name']
payload = data['json_payload']
except KeyError as e:
return messages.MalformedEvent(data, 'Missing field {}'.format(e))
if name == 'power_on':
return messages.PowerOn(
bridge_address=data['bridge_address'],
model=payload['model'],
firmware_version=payload['firmware_version'],
ncp_version=payload['ncp_version'],
local_ip_address=payload['local_ip_address'],
mac_address=payload['mac_address'],
uptime=payload['uptime'],
uboot_environment=payload['uboot_environment'],
network_info=payload['network_info'],
)
elif name == 'device_connect':
return messages.DeviceConnect(
bridge_address=data['bridge_address'],
device_address=payload['device_address'],
)
elif name == 'device_disconnect':
return messages.DeviceDisconnect(
bridge_address=data['bridge_address'],
device_address=payload['device_address'],
)
elif name == 'encryption_key_required':
return messages.EncryptionKeyRequired(
bridge_address=data['bridge_address'],
device_address=payload['device_address'],
hardware_xor=bitshuffle.hardware_xor_from_device_address(
payload['device_address']),
)
else:
return messages.UnknownEvent(data)
assert False, "never reached"
def phone_home(cls, device_address):
"""This gets called every time the in-memory machinery thinks it has
seen a printer for the first time round, e.g. after a
re-connect of the websocket.
"""
printer = cls.query.filter_by(device_address=device_address).first()
hardware_xor = bitshuffle.hardware_xor_from_device_address(
device_address)
if printer is not None:
return
printer = cls(
device_address=device_address,
hardware_xor=hardware_xor,
owner_id=None,
used_claim_code=None,
)
db.session.add(printer)
db.session.commit()
# Connect hardware xor and printer if there is a claim code
# waiting.
#
# Printers always generate the same XOR. I.e. we can have more
# than one claim code with the same XOR. We always pick the
# newest claim code.
claim_code_query = ClaimCode.query.filter_by(
hardware_xor=hardware_xor).order_by(desc('created'), desc('id'))
claim_code = claim_code_query.first()
if claim_code is None:
return
printer.owner_id = claim_code.by_id
printer.name = claim_code.name
printer.used_claim_code = claim_code.claim_code
db.session.add(printer)
db.session.commit()
def phone_home(cls, device_address):
"""This gets called every time the in-memory machinery thinks it has
seen a printer for the first time round, e.g. after a
re-connect of the websocket.
"""
printer = cls.query.filter_by(device_address=device_address).first()
hardware_xor = bitshuffle.hardware_xor_from_device_address(device_address)
if printer is not None:
return
printer = cls(
device_address=device_address,
hardware_xor=hardware_xor,
owner_id=None,
used_claim_code=None,
)
db.session.add(printer)
db.session.commit()
# Connect hardware xor and printer if there is a claim code
# waiting.
#
# Printers always generate the same XOR. I.e. we can have more
# than one claim code with the same XOR. We always pick the
# newest claim code.
claim_code_query = ClaimCode.query.filter_by(
hardware_xor=hardware_xor).order_by(desc('created'), desc('id'))
claim_code = claim_code_query.first()
if claim_code is None:
return
printer.owner_id = claim_code.by_id
printer.name = claim_code.name
printer.used_claim_code = claim_code.claim_code
db.session.add(printer)
db.session.commit()
