anti
e3d9908bed
Synthesize the covering CIDR at lookup time from the matched iptoasn range using ipaddress.summarize_address_range. AsnInfo.prefix is populated per-query; not persisted in the pickle cache. enrich_ip now returns (asn, as_name, bgp_prefix, provider_name). Profiler worker updated to unpack the 4-tuple and write bgp_prefix into the attacker record dict.
97 lines
2.7 KiB
Python
97 lines
2.7 KiB
Python
"""IptoasnProvider + factory + public API tests."""
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from __future__ import annotations
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import gzip
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from pathlib import Path
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import pytest
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def _seed_fixture(root: Path, content: str = "8.8.8.0\t8.8.8.255\t15169\tUS\tGOOGLE\n") -> None:
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target = root / "ip2asn-v4.tsv.gz"
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with gzip.open(target, "wt", encoding="utf-8") as fh:
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fh.write(content)
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def test_factory_returns_iptoasn_by_default() -> None:
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from decnet.asn.factory import get_provider
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provider = get_provider()
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assert provider.name == "iptoasn"
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def test_factory_rejects_unknown_provider(monkeypatch: pytest.MonkeyPatch) -> None:
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from decnet.asn import factory
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monkeypatch.setenv("DECNET_ASN_PROVIDER", "nope")
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factory.reset_cache()
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with pytest.raises(ValueError):
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factory.get_provider()
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def test_provider_build_lookup_empty_when_no_files(tmp_path: Path) -> None:
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from decnet.asn.iptoasn.provider import IptoasnProvider
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p = IptoasnProvider()
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lookup = p.build_lookup()
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assert len(lookup) == 0
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assert lookup.asn("8.8.8.8") is None
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def test_provider_build_lookup_reads_present_file(tmp_path: Path) -> None:
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from decnet.asn.iptoasn.provider import IptoasnProvider
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_seed_fixture(tmp_path)
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p = IptoasnProvider()
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lookup = p.build_lookup()
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info = lookup.asn("8.8.8.8")
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assert info is not None
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assert info.asn == 15169
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assert info.name == "GOOGLE"
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def test_provider_uses_cache_when_fresh(tmp_path: Path) -> None:
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from decnet.asn.iptoasn.provider import IptoasnProvider
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_seed_fixture(tmp_path)
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p = IptoasnProvider()
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a = p.build_lookup()
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assert (tmp_path / ".iptoasn_index.pkl").exists()
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p2 = IptoasnProvider()
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b = p2.build_lookup()
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assert len(b) == len(a)
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def test_enrich_ip_short_circuits_when_disabled(monkeypatch: pytest.MonkeyPatch) -> None:
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import decnet.asn as asn
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monkeypatch.setenv("DECNET_ASN_ENABLED", "false")
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assert asn.enrich_ip("8.8.8.8") == (None, None, None, None)
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def test_enrich_ip_returns_asn_prefix_and_source(tmp_path: Path) -> None:
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from decnet.asn import enrich_ip
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_seed_fixture(tmp_path)
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asn, name, prefix, src = enrich_ip("8.8.8.8")
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assert asn == 15169
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assert name == "GOOGLE"
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assert prefix == "8.8.8.0/24"
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assert src == "iptoasn"
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def test_enrich_ip_private_returns_none(tmp_path: Path) -> None:
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from decnet.asn import enrich_ip
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_seed_fixture(tmp_path)
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assert enrich_ip("192.168.1.1") == (None, None, None, None)
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def test_enrich_ip_unannounced_returns_none(tmp_path: Path) -> None:
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from decnet.asn import enrich_ip
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_seed_fixture(tmp_path)
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# 9.0.0.0 isn't in our fixture range — no BGP announcement we know of.
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assert enrich_ip("9.0.0.0") == (None, None, None, None)
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