def message_system(request):
secure_id = request.META.get('HTTP_X_COMPUTER_ID')
data = loads(request.raw_post_data)
received_msgs = data.pop('messages', [])
if len(received_msgs) != data['total-messages']:
raise
return_msgs = []
computer = company = None
# Get company and computer objects if we do have a secure_id
if secure_id:
try:
computer = Computer.objects.select_related('company')\
.get(secure_id=secure_id)
company = computer.company
if not all((computer.next_client_sequence,
computer.next_server_sequence)):
computer.next_client_sequence = data['sequence']
computer.next_server_sequence = data['next-expected-sequence']
computer.save()
except Computer.DoesNotExist:
return render_messages([{'type': 'unkown-id'}])
# Special case registration, as we could get a request with nothing,
# and without accepting register, we'll never get a registration.
if computer is not None and computer.confirmed:
accepted_types = company.activated_plugins.values_list(
'identifier', flat=True).order_by('identifier')
accepted_types_hash = company.activated_plugins_hash.decode('hex')
else:
accepted_types = ['register']
accepted_types_hash = hash_types(['register'])
# Check if sequence numbers match
if computer is not None and computer.confirmed and \
((data['sequence'] != computer.next_client_sequence) or
(data['next-expected-sequence'] != computer.next_server_sequence)):
raise
# Determine whether we need to notify the client about new/delete types
if data.get('accepted-types') != accepted_types_hash:
return_msgs.append({
'type': 'accepted-types',
'types': list(accepted_types)
})
for msg in received_msgs:
if computer is None and msg['type'] != 'register':
continue
message_logger.debug('Received message with data:\n%s' % pformat(msg))
ret_ = message_available.send(sender=MessageType(msg['type']),
computer=computer,
request_data=data,
msg_data=msg)
ret = itertools.chain(*map(operator.itemgetter(1), ret_))
return_msgs.extend(ret)
messages = Message.objects.filter(computer=computer)
if computer is not None:
if messages.count():
for msg in messages:
return_msgs.append(simplejson.loads(msg.message))
messages.delete()
computer.next_client_sequence += data['total-messages']
computer.next_server_sequence += len(return_msgs)
# prevent sending of unneeded data
Computer.objects.filter(pk=computer.pk).update(
next_client_sequence = \
F('next_client_sequence') + data['total-messages'],
next_server_sequence = \
F('next_server_sequence') + len(return_msgs))
return render_messages(return_msgs, computer=computer)
def message_system(request):
secure_id = request.META.get("HTTP_X_COMPUTER_ID")
data = loads(request.raw_post_data)
received_msgs = data.pop("messages", [])
if len(received_msgs) != data["total-messages"]:
raise
return_msgs = []
computer = company = None
# Get company and computer objects if we do have a secure_id
if secure_id:
try:
computer = Computer.objects.select_related("company").get(secure_id=secure_id)
company = computer.company
if not all((computer.next_client_sequence, computer.next_server_sequence)):
computer.next_client_sequence = data["sequence"]
computer.next_server_sequence = data["next-expected-sequence"]
computer.save()
except Computer.DoesNotExist:
return render_messages([{"type": "unkown-id"}])
# Special case registration, as we could get a request with nothing,
# and without accepting register, we'll never get a registration.
if computer is not None and computer.confirmed:
accepted_types = company.activated_plugins.values_list("identifier", flat=True).order_by("identifier")
accepted_types_hash = company.activated_plugins_hash.decode("hex")
else:
accepted_types = ["register"]
accepted_types_hash = hash_types(["register"])
# Check if sequence numbers match
if (
computer is not None
and computer.confirmed
and (
(data["sequence"] != computer.next_client_sequence)
or (data["next-expected-sequence"] != computer.next_server_sequence)
)
):
raise
# Determine whether we need to notify the client about new/delete types
if data.get("accepted-types") != accepted_types_hash:
return_msgs.append({"type": "accepted-types", "types": list(accepted_types)})
for msg in received_msgs:
if computer is None and msg["type"] != "register":
continue
message_logger.debug("Received message with data:\n%s" % pformat(msg))
ret_ = message_available.send(
sender=MessageType(msg["type"]), computer=computer, request_data=data, msg_data=msg
)
ret = itertools.chain(*map(operator.itemgetter(1), ret_))
return_msgs.extend(ret)
messages = Message.objects.filter(computer=computer)
if computer is not None:
if messages.count():
for msg in messages:
return_msgs.append(simplejson.loads(msg.message))
messages.delete()
computer.next_client_sequence += data["total-messages"]
computer.next_server_sequence += len(return_msgs)
# prevent sending of unneeded data
Computer.objects.filter(pk=computer.pk).update(
next_client_sequence=F("next_client_sequence") + data["total-messages"],
next_server_sequence=F("next_server_sequence") + len(return_msgs),
)
return render_messages(return_msgs, computer=computer)
def ping(request):
id = request.POST.get('insecure_id')
msg_count = Message.objects.filter(computer__insecure_id=id).count()
return render_messages(bool(msg_count), ping_answer=True)
def ping(request):
id = request.POST.get("insecure_id")
msg_count = Message.objects.filter(computer__insecure_id=id).count()
return render_messages(bool(msg_count), ping_answer=True)
