anti
f2b3393669
Replaces LICENSE (GPLv3 -> AGPLv3) and prepends `SPDX-License-Identifier: AGPL-3.0-or-later` to every source file across decnet/, decnet_web/, tests/, scripts/, and tools/. Rationale: closes the GPLv3 ASP loophole so any party operating a modified DECNET as a network service must offer their modified source. Personal copyright (Samuel Paschuan) + inbound=outbound contributions make a future unilateral relicense infeasible. - LICENSE: full AGPL-3.0 text (gnu.org/licenses/agpl-3.0.txt) - COPYRIGHT: project copyright notice - tools/add_spdx_headers.py: idempotent header injector (shebang- and PEP 263-aware) Touches 1565 source files (.py, .ts, .tsx, .js, .jsx, .css, .sh). No behavior change; comments only.
121 lines
3.7 KiB
Python
121 lines
3.7 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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"""Unit tests for decnet.geoip.ptr — reverse-DNS resolver."""
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from __future__ import annotations
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import asyncio
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import socket
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from unittest.mock import patch
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import pytest
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from decnet.geoip.ptr import _is_resolvable, resolve_ptr_record
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@pytest.fixture(autouse=True)
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def _enable_ptr(monkeypatch):
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"""This module covers the resolver directly — re-enable the env
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switch that tests/conftest.py disables globally."""
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monkeypatch.setenv("DECNET_PTR_ENABLED", "true")
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# ─── pure predicate ─────────────────────────────────────────────────────────
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@pytest.mark.parametrize("ip", [
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"127.0.0.1",
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"10.0.0.1",
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"192.168.1.5",
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"172.16.0.1",
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"169.254.1.1", # link-local
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"224.0.0.1", # multicast
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"::1",
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"fe80::1", # IPv6 link-local
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"not-an-ip",
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"",
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])
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def test_not_resolvable(ip: str):
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assert _is_resolvable(ip) is False
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@pytest.mark.parametrize("ip", [
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"8.8.8.8",
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"1.1.1.1",
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"2606:4700:4700::1111",
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])
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def test_resolvable_public(ip: str):
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assert _is_resolvable(ip) is True
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# ─── resolver ───────────────────────────────────────────────────────────────
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@pytest.mark.asyncio
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async def test_resolves_public_ip():
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with patch(
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"decnet.geoip.ptr.socket.gethostbyaddr",
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return_value=("dns.google", [], ["8.8.8.8"]),
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):
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name = await resolve_ptr_record("8.8.8.8")
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assert name == "dns.google"
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@pytest.mark.asyncio
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async def test_private_ip_short_circuits():
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"""Private IPs never touch the resolver."""
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with patch("decnet.geoip.ptr.socket.gethostbyaddr") as mock_lookup:
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assert await resolve_ptr_record("127.0.0.1") is None
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assert await resolve_ptr_record("10.0.0.1") is None
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assert await resolve_ptr_record("::1") is None
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assert mock_lookup.call_count == 0
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@pytest.mark.asyncio
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async def test_gethostbyaddr_herror_returns_none():
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with patch(
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"decnet.geoip.ptr.socket.gethostbyaddr",
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side_effect=socket.herror("no rDNS"),
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):
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assert await resolve_ptr_record("8.8.8.8") is None
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@pytest.mark.asyncio
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async def test_gethostbyaddr_gaierror_returns_none():
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with patch(
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"decnet.geoip.ptr.socket.gethostbyaddr",
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side_effect=socket.gaierror("dns broken"),
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):
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assert await resolve_ptr_record("8.8.8.8") is None
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@pytest.mark.asyncio
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async def test_timeout_returns_none():
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"""A slow resolver should not block the caller past timeout."""
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def slow(ip: str): # noqa: ARG001
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import time
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time.sleep(3.0)
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return ("slow.example", [], [])
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with patch("decnet.geoip.ptr.socket.gethostbyaddr", side_effect=slow):
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# Tight timeout — must return quickly.
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result = await asyncio.wait_for(
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resolve_ptr_record("8.8.8.8", timeout=0.1),
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timeout=1.0,
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)
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assert result is None
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@pytest.mark.asyncio
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async def test_env_disabled(monkeypatch):
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monkeypatch.setenv("DECNET_PTR_ENABLED", "false")
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with patch("decnet.geoip.ptr.socket.gethostbyaddr") as mock_lookup:
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assert await resolve_ptr_record("8.8.8.8") is None
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assert mock_lookup.call_count == 0
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@pytest.mark.asyncio
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async def test_empty_hostname_returned_as_none():
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"""gethostbyaddr can return '' on some platforms; normalize to None."""
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with patch(
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"decnet.geoip.ptr.socket.gethostbyaddr",
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return_value=("", [], ["8.8.8.8"]),
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):
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assert await resolve_ptr_record("8.8.8.8") is None
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