anti
f64e78f78c
Two new synthesised-artifact generators that bake the obfuscated fingerprint payload into plausible-looking decoy files: * fingerprint_html — a mundane "Internal Asset Directory" page with a small table of fake hosts; the obfuscated payload is inlined at the bottom of <body>. Visible content (row pool slice, sync timestamp) also varies per mint via SHA-256-derived stable ints, so two extracted canaries don't diff to zero even on the rendered surface. * fingerprint_svg — standalone SVG with an embedded <script> CDATA block. SVG <script> only fires for top-level loads / <object> / <iframe>; <img>-referenced renders are safely inert. Both derive the mint UUID via uuid.uuid5 from the callback token, so re-mints are byte-identical (preserving the generator determinism contract) AND the same token produces the same mint UUID across HTML and SVG variants — the worker can correlate beacons across artifact shapes. Wired into the factory + KNOWN_GENERATORS, default placement paths under ~/Documents/asset_directory.html and ~/Documents/network_topology.svg for both linux and windows personas. Tests cover determinism, per-token divergence, structural validity (DOCTYPE/SVG headers), and that the beacon URL stays inside the obfuscated string array (not in plaintext). The two new entries skip in test_generators.py when Node toolchain is absent so bare CI checkouts still pass.
104 lines
3.7 KiB
Python
104 lines
3.7 KiB
Python
"""Tests for the HTML/SVG fingerprint canary generators.
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Skipped when the Node toolchain (or vendored javascript-obfuscator) is
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not installed, mirroring :mod:`tests.canary.test_obfuscator`.
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"""
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from __future__ import annotations
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import shutil
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from pathlib import Path
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import pytest
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from decnet.canary import CanaryContext, get_generator
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def _toolchain_ready() -> bool:
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if shutil.which("node") is None:
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return False
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canary_dir = Path(__file__).resolve().parents[2] / "decnet" / "canary"
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return (canary_dir / "node_modules" / "javascript-obfuscator").is_dir()
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pytestmark = pytest.mark.skipif(
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not _toolchain_ready(),
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reason="node + javascript-obfuscator not installed under decnet/canary",
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)
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def _ctx(callback_token: str = "fp-tok-123") -> CanaryContext:
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return CanaryContext(
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callback_token=callback_token,
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http_base="https://canary.example.test",
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dns_zone="canary.example.test",
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persona="linux",
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)
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def test_fingerprint_html_renders_full_page() -> None:
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art = get_generator("fingerprint_html").generate(_ctx())
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body = art.content.decode("utf-8")
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assert body.startswith("<!DOCTYPE html>")
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assert "<script>" in body and "</script>" in body
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assert "Internal Asset Directory" in body
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assert "<table>" in body
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# Beacon URL must NOT appear in plaintext — it's inside the
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# obfuscated string array. (Sanity: this is the whole point of
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# obfuscating the payload.)
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assert "/c/fp-tok-123" not in body
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# Visible content shouldn't leak the slug either.
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assert "fp-tok-123" not in body
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assert art.mode == 0o644
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assert art.generator == "fingerprint_html"
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def test_fingerprint_html_is_deterministic_per_token() -> None:
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a = get_generator("fingerprint_html").generate(_ctx("tokA"))
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b = get_generator("fingerprint_html").generate(_ctx("tokA"))
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assert a.content == b.content
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def test_fingerprint_html_differs_across_tokens() -> None:
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a = get_generator("fingerprint_html").generate(_ctx("tokA"))
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b = get_generator("fingerprint_html").generate(_ctx("tokB"))
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assert a.content != b.content
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def test_fingerprint_html_notes_carry_mint_uuid_and_beacon() -> None:
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art = get_generator("fingerprint_html").generate(_ctx("tok-notes"))
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joined = " | ".join(art.notes)
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assert "mint_uuid=" in joined
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assert "https://canary.example.test/c/tok-notes" in joined
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def test_fingerprint_svg_renders_valid_svg_with_script() -> None:
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art = get_generator("fingerprint_svg").generate(_ctx())
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body = art.content.decode("utf-8")
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assert body.startswith("<?xml version=\"1.0\"")
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assert "<svg" in body and "</svg>" in body
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assert "<script" in body and "<![CDATA[" in body
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assert art.mode == 0o644
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assert art.generator == "fingerprint_svg"
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def test_fingerprint_svg_is_deterministic_per_token() -> None:
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a = get_generator("fingerprint_svg").generate(_ctx("svgTokA"))
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b = get_generator("fingerprint_svg").generate(_ctx("svgTokA"))
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assert a.content == b.content
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def test_fingerprint_svg_differs_across_tokens() -> None:
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a = get_generator("fingerprint_svg").generate(_ctx("svgTokA"))
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b = get_generator("fingerprint_svg").generate(_ctx("svgTokB"))
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assert a.content != b.content
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def test_mint_uuid_stable_across_html_and_svg() -> None:
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# Same callback token → same mint UUID across both generators, so
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# the worker can correlate beacons regardless of artifact shape.
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html = get_generator("fingerprint_html").generate(_ctx("shared-tok"))
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svg = get_generator("fingerprint_svg").generate(_ctx("shared-tok"))
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html_uuid = next(n for n in html.notes if n.startswith("mint_uuid="))
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svg_uuid = next(n for n in svg.notes if n.startswith("mint_uuid="))
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assert html_uuid == svg_uuid
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