def create_signature_file(inner_zip_file):
signature_file = os.path.splitext(inner_zip_file)[0] + "_signature.txt"
logging.debug("Generating signature; saving to %s" % signature_file)
if settings.DEBUG or not os.path.exists(signature_file): # always regenerate in debug mode
key = Device.get_own_device().get_key()
chunk_size = int(2E5) #200kb chunks
signature = key.sign_large_file(inner_zip_file, chunk_size=chunk_size)
with open(signature_file, "w") as fp:
fp.write("%d\n" % chunk_size)
fp.write(signature)
return signature_file
def create_signature_file(inner_zip_file):
signature_file = os.path.splitext(
inner_zip_file)[0] + "_signature.txt"
logging.debug("Generating signature; saving to %s" %
signature_file)
if settings.DEBUG or not os.path.exists(
signature_file): # always regenerate in debug mode
key = Device.get_own_device().get_key()
chunk_size = int(2E5) #200kb chunks
signature = key.sign_large_file(inner_zip_file,
chunk_size=chunk_size)
with open(signature_file, "w") as fp:
fp.write("%d\n" % chunk_size)
fp.write(signature)
return signature_file
def create_json_file(include_data):
central_server = Device.get_central_server()
if not zone_id:
models = [central_server] if central_server else []
else:
# Get a chain of trust to the zone owner.
# Because we're on the central server, this will
# simply be the central server, but in the future
# this would return an actual chain.
logging.debug("Generating a zone invitation...")
zone = Zone.objects.get(id=zone_id)
chain = ChainOfTrust(zone=zone)
assert chain.validate()
new_invitation = ZoneInvitation.generate(
zone=zone, invited_by=Device.get_own_device())
new_invitation.save(
) # keep a record of the invitation, for future revocation. Also, signs the thing
# This ordering of objects is a bit be hokey, but OK--invitation usually must be
# inserted before devicezones--but because it's not pointing to any devices,
# it's OK to be at the end.
# Note that the central server will always be at the front of the chain of trust,
# so no need to explicitly include.
models = chain.objects() + [new_invitation]
#
if include_data:
logging.debug("Serializing entire dataset...")
devices = Device.objects.by_zone(zone)
devicezones = DeviceZone.objects.filter(zone=zone)
models += list(devices) + list(devicezones)
models += engine.get_models(
zone=zone, limit=None) # get all models on this zone
models_file = tempfile.mkstemp()[1]
with open(models_file, "w") as fp:
fp.write(engine.serialize(models))
return models_file
def create_json_file(include_data):
central_server = Device.get_central_server()
if not zone_id:
models = [central_server] if central_server else []
else:
# Get a chain of trust to the zone owner.
# Because we're on the central server, this will
# simply be the central server, but in the future
# this would return an actual chain.
logging.debug("Generating a zone invitation...")
zone = Zone.objects.get(id=zone_id)
chain = ChainOfTrust(zone=zone)
assert chain.validate()
new_invitation = ZoneInvitation.generate(zone=zone, invited_by=Device.get_own_device())
new_invitation.save() # keep a record of the invitation, for future revocation. Also, signs the thing
# This ordering of objects is a bit be hokey, but OK--invitation usually must be
# inserted before devicezones--but because it's not pointing to any devices,
# it's OK to be at the end.
# Note that the central server will always be at the front of the chain of trust,
# so no need to explicitly include.
models = chain.objects() + [new_invitation]
#
if include_data:
logging.debug("Serializing entire dataset...")
devices = Device.objects.by_zone(zone)
devicezones = DeviceZone.objects.filter(zone=zone)
models += list(devices) + list(devicezones)
models += engine.get_models(zone=zone, limit=None) # get all models on this zone
models_file = tempfile.mkstemp()[1]
with open(models_file, "w") as fp:
fp.write(engine.serialize(models))
return models_file
