34 lines
1.0 KiB
Python
34 lines
1.0 KiB
Python
"""ASN provider protocol — mirror of :mod:`decnet.geoip.base`.
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Concrete providers (e.g. :mod:`decnet.asn.iptoasn`) implement this.
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Callers must go through :func:`decnet.asn.factory.get_provider`; never
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import a concrete provider class directly.
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"""
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from __future__ import annotations
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from abc import ABC, abstractmethod
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from pathlib import Path
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from typing import Sequence
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from decnet.asn.lookup import AsnLookup
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class Provider(ABC):
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"""Abstract IP→ASN data provider."""
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#: Short tag written to ``Attacker.asn_source`` (e.g. ``'iptoasn'``).
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name: str
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@abstractmethod
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def refresh(self) -> None:
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"""Download / regenerate the provider's raw data files."""
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@abstractmethod
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def build_lookup(self) -> AsnLookup:
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"""Parse the on-disk data files and return a ready-to-query lookup."""
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@abstractmethod
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def data_paths(self) -> Sequence[Path]:
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"""Return the list of files this provider manages — used for staleness
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detection. Order is not significant."""
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