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105 lines
3.3 KiB
105 lines
3.3 KiB
from abc import ABCMeta, abstractmethod
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from typing import Iterator, Any, Tuple, Optional, Iterable
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from .structs import AbonStruct, TariffStruct, VectorAbon, VectorTariff
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# Raised if NAS has returned failed result
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class NasFailedResult(Exception):
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pass
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# Raised when is no connection to the NAS
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class NasNetworkError(Exception):
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pass
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# Communicate with NAS
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class BaseTransmitter(metaclass=ABCMeta):
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@abstractmethod
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def add_user_range(self, user_list: VectorAbon):
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"""add subscribers list to NAS"""
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@abstractmethod
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def remove_user_range(self, users: VectorAbon):
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"""remove subscribers list"""
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@abstractmethod
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def add_user(self, user: AbonStruct, *args):
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"""add subscriber"""
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@abstractmethod
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def remove_user(self, user: AbonStruct):
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"""remove subscriber"""
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@abstractmethod
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def update_user(self, user: AbonStruct, *args):
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"""
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Update subscriber by uid, you can change everything except its uid.
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Subscriber will found by UID.
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"""
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@abstractmethod
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def add_tariff_range(self, tariff_list: VectorTariff):
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"""Add services list to NAS."""
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@abstractmethod
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def remove_tariff_range(self, tariff_list: VectorTariff):
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"""Remove tariff list by unique id list."""
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@abstractmethod
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def add_tariff(self, tariff: TariffStruct):
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pass
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@abstractmethod
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def update_tariff(self, tariff: TariffStruct):
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"""
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Update tariff by uid, you can change everything except its uid.
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Tariff will found by UID.
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"""
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@abstractmethod
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def remove_tariff(self, tid: int):
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"""
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:param tid: unique id of tariff.
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"""
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@abstractmethod
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def ping(self, host: str, count=10) -> Optional[Tuple[int, int]]:
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"""
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:param host: ip address in text view, for example '192.168.0.1'
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:param count: count of ping queries
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:return: None if not response, else tuple it contains count returned and count sent
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for example (received, sent) -> (7, 10).
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"""
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@abstractmethod
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def read_users(self) -> Iterable[AbonStruct]:
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pass
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def _diff_users(self, users_from_db: Iterator[Any]) -> Tuple[set, set]:
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"""
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:param users_from_db: QuerySet of all subscribers that can have service
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:return: Tuple of 2 lists that contain list to add users and list to remove users
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"""
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users_struct_list = (ab.build_agent_struct() for ab in users_from_db if ab.is_access())
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users_struct_set = set(ab for ab in users_struct_list if ab is not None and ab.tariff is not None)
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users_from_nas = set(self.read_users())
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if len(users_from_nas) < 1:
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print('WARNING: Not have users from NAS')
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list_for_del = (users_struct_set ^ users_from_nas) - users_struct_set
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list_for_add = users_struct_set - users_from_nas
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return list_for_add, list_for_del
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def sync_nas(self, users_from_db: Iterator):
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list_for_add, list_for_del = self._diff_users(users_from_db)
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if len(list_for_del) > 0:
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print('FOR DELETE')
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for ld in list_for_del:
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print(ld)
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self.remove_user_range(list_for_del)
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if len(list_for_add) > 0:
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print('FOR ADD')
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for la in list_for_add:
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print(la)
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self.add_user_range(list_for_add)
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