protokeyandClaude Opus 5.5
9dc2c0b619
Минимальный init-script (src/api/js/canvas_noise.js): младший бит у ~1/64 непрозрачных пикселей при toDataURL/toBlob/getImageData, детерминирован от seed профиля. Пустой canvas не меняется, подменённые функции неотличимы по toString и length. Старые профили получают seed, экран сохраняется. Проверено: 4 профиля — 4 разных хеша canvas; Cloudflare 6/6 на новых профилях. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
72 lines
2.9 KiB
Python
72 lines
2.9 KiB
Python
import json
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from api import profile
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def test_fingerprint_generated_once(tmp_path):
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first = profile.load_or_create(tmp_path)
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assert profile.load_or_create(tmp_path) == first
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assert json.loads((tmp_path / profile.SETTINGS_FILE).read_text()) == first
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screen = first["fingerprint"]["screen"]
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assert screen["width"] >= profile.MIN_SCREEN[0] and screen["height"] >= profile.MIN_SCREEN[1]
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assert first["fingerprint"]["device_scale_factor"] >= 1
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assert first["fingerprint"]["canvas_seed"] > 0
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assert "user_agent" not in first
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def test_old_profile_settings_get_fingerprint(tmp_path):
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"""Профиль из версии, где сохранялся user_agent клиента: UA отбрасывается, отпечаток создаётся."""
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(tmp_path / profile.SETTINGS_FILE).write_text(json.dumps({"user_agent": "First/1"}))
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settings = profile.load_or_create(tmp_path)
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assert set(settings) == {"fingerprint"}
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def test_profiles_get_independent_fingerprints(tmp_path):
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"""Отпечатки генерируются независимо: из выборки профилей получается больше одного варианта."""
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variants = set()
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for i in range(30):
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d = tmp_path / str(i)
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d.mkdir()
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fp = profile.load_or_create(d)["fingerprint"]
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variants.add((fp["screen"]["width"], fp["screen"]["height"], fp["device_scale_factor"]))
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assert len(variants) > 1
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def test_generate_falls_back_when_browserforge_fails(monkeypatch):
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class Failing:
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def generate(self, **kwargs):
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raise ValueError("Cannot generate headers")
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monkeypatch.setattr(profile, "FingerprintGenerator", Failing)
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fp = profile.generate_fingerprint(attempts=2)
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assert (fp["screen"], fp["device_scale_factor"]) == ({"width": 1920, "height": 1080}, 1)
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assert fp["canvas_seed"] > 0
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def test_browser_kwargs():
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kwargs = profile.browser_kwargs({"fingerprint": {
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"screen": {"width": 2560, "height": 1440}, "device_scale_factor": 1.25, "canvas_seed": 12345,
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}})
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assert kwargs["additional_args"] == {"screen": {"width": 2560, "height": 1440}, "device_scale_factor": 1.25}
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assert "useragent" not in kwargs
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script = kwargs["init_script_content"]
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assert "const SEED = 12345 | 0;" in script and "__SEED__" not in script
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def test_profile_before_canvas_noise_gets_seed_and_keeps_screen(tmp_path):
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old = {"fingerprint": {"screen": {"width": 2560, "height": 1440}, "device_scale_factor": 2}}
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(tmp_path / profile.SETTINGS_FILE).write_text(json.dumps(old))
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fp = profile.load_or_create(tmp_path)["fingerprint"]
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assert (fp["screen"], fp["device_scale_factor"]) == ({"width": 2560, "height": 1440}, 2)
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assert fp["canvas_seed"] > 0
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assert profile.load_or_create(tmp_path)["fingerprint"] == fp
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def test_profiles_get_different_canvas_seeds(tmp_path):
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seeds = set()
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for i in range(20):
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(tmp_path / str(i)).mkdir()
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seeds.add(profile.load_or_create(tmp_path / str(i))["fingerprint"]["canvas_seed"])
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assert len(seeds) == 20
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