Benjamin Admin
6f0416a22d
Storage-Keys fehlen in Phase A (vor Consent) oft → provider blieb leer. Jetzt fällt detect_consent_history auf den bereits aus dem Banner-DOM erkannten banner_provider zurück → korrekter Anbieter + history_capable auch ohne Storage-Eintrag. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
100 lines
3.9 KiB
Python
100 lines
3.9 KiB
Python
"""Consent-Historie-/Widerruf-Erkennung (Borlabs-Stil) während des Scans.
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Erkennt, ob die Site ihre Einwilligung versioniert speichert (Borlabs hält die
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zugestimmte Version + Zeitstempel → Nutzer kann nachvollziehen, welcher Version
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er wann zugestimmt hat) und ob ein dauerhaftes Widerruf-/„Cookie-Einstellungen"-
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Widget angeboten wird. Reine Klassifikation (`classify_provider`) ist ohne
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Browser unit-testbar; `detect_consent_history` kapselt das Playwright-IO.
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"""
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from __future__ import annotations
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from typing import Any, Optional
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# Signatur-Fragmente in Storage-Keys/Cookie-Namen → CMP-Anbieter.
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_PROVIDERS = [
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("Borlabs", ["borlabs-cookie", "borlabscookie", "borlabs"]),
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("Usercentrics", ["uc_settings", "uc_user_interaction", "usercentrics"]),
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("OneTrust", ["optanonconsent", "optanonalertbox", "onetrust"]),
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("Cookiebot", ["cookieconsent", "cookiebot"]),
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("Complianz", ["cmplz_", "complianz"]),
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("Cookie-Script", ["cookiescriptconsent"]),
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]
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# Wer trägt von Haus aus eine versionierte Consent-Historie (Capability).
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_HISTORY_CAPABLE = {"Borlabs", "Usercentrics", "OneTrust", "Cookiebot"}
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# Selektoren für ein dauerhaftes Widerruf-/Einstellungs-Widget.
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_WITHDRAW_SELECTOR = (
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'a:has-text("Cookie-Einstellungen"), button:has-text("Cookie-Einstellungen"), '
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'a:has-text("Einwilligung"), button:has-text("Einwilligung"), '
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'a:has-text("Cookie Settings"), button:has-text("Cookie Settings"), '
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'a:has-text("Consent"), button:has-text("Consent"), '
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'[id*="borlabs-cookie"], [class*="borlabs-cookie"], #BorlabsCookieBox, '
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'[class*="cookie-preference"], [class*="cmplz-manage"]'
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)
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def classify_provider(names: list[str]) -> str:
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"""Storage-Keys + Cookie-Namen → CMP-Anbieter ('' wenn unbekannt). Pur."""
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blob = " ".join(n.lower() for n in names if n)
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for provider, sigs in _PROVIDERS:
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if any(s in blob for s in sigs):
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return provider
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return ""
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def _is_versioned(provider: str, stored_value: Optional[str]) -> bool:
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"""True, wenn der gespeicherte Consent eine Version/Consent-Liste trägt
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(Indiz für nachvollziehbare Historie)."""
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if not stored_value:
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return provider in _HISTORY_CAPABLE # Capability auch ohne Wert
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low = stored_value.lower()
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return any(t in low for t in ("version", "consents", "timestamp", "consentid"))
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async def detect_consent_history(page: Any, banner_provider: str = "") -> dict:
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"""Liest Storage/Cookies + DOM und liefert:
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{provider, stored, versioned_consent, history_capable, withdraw_ui}.
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`banner_provider` = bereits aus dem Banner-DOM erkanntes CMP — wird als
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Fallback genutzt, da Storage-Keys in Phase A (vor Consent) oft noch fehlen."""
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keys: list[str] = []
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try:
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keys = await page.evaluate("() => Object.keys(window.localStorage || {})")
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except Exception:
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keys = []
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cookie_names: list[str] = []
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try:
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cookie_names = [c.get("name", "") for c in await page.context.cookies()]
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except Exception:
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cookie_names = []
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# Provider zuerst aus Storage/Cookies, sonst aus dem erkannten Banner-CMP.
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provider = (classify_provider(list(keys) + cookie_names)
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or classify_provider([banner_provider or ""]))
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stored_value = None
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if provider == "Borlabs":
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try:
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stored_value = await page.evaluate(
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"() => localStorage.getItem('borlabs-cookie') || "
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"localStorage.getItem('BorlabsCookie')")
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except Exception:
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stored_value = None
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versioned = _is_versioned(provider, stored_value)
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withdraw = False
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try:
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withdraw = await page.locator(_WITHDRAW_SELECTOR).count() > 0
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except Exception:
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withdraw = False
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return {
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"provider": provider,
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"stored": bool(provider),
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"versioned_consent": versioned,
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"history_capable": versioned or provider in _HISTORY_CAPABLE,
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"withdraw_ui": withdraw,
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}
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