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P75 — check_banner_vs_cmp_partner_count: wenn Banner-Text 'N Partner' nennt und N < cmp_vendors * 0.6, HIGH-Finding (Art. 13(1)(e) DSGVO). Erkennt Verharmlosung der tatsaechlichen Vendor-Anzahl. P84 — run_diff.py: vergleicht aktuellen Lauf mit letztem Snapshot derselben Site (set-Diff auf normalisierten Finding-Labels). Block ueber dem GF-1-Pager: 'Seit letztem Lauf: X Findings weg, Y neue'. USP — keiner der grossen Anbieter hat das. P74/P96/P97 — Labels fuer legal_notice (Rechtliche Hinweise / IP / Forward-Looking), dsa (Art. 12+17 Digital Services Act), lizenzhinweise (OSS-Compliance) in _DOC_TYPE_LABELS registriert. Echte Pflichtangaben- Checks kommen separat. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
280 lines
10 KiB
Python
280 lines
10 KiB
Python
"""
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P92 + P94 — Banner-Konsistenz-Checks (Post-hoc auf banner_result).
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P92 — CMP-Tool-Verfuegbarkeit:
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Wenn "Anpassen"/"Einstellungen" angeklickt wurde und das Tool laed
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nicht (Network-Error, Timeout, weisse Seite, fehlende
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consent-Elemente nach Klick), ist das ein HIGH-Verstoss — der
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Nutzer hat formal die Moeglichkeit zur granularen Wahl, aber sie
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funktioniert nicht.
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P94 — Banner-Init-vs-Cookie-Footer-Konsistenz:
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Cookie-Liste im Initial-Banner-Settings darf nicht von der Liste
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im permanenten Cookie-Richtlinien-Dokument abweichen. Wenn Banner
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12 Cookies nennt, die Cookie-Doc aber 47, ist mindestens eine der
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beiden Quellen unvollstaendig → MEDIUM-Finding.
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Beide liefern dict mit shape:
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{"severity": "HIGH"|"MEDIUM", "code": str, "label": str, "detail": str}
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oder None, wenn der Check nicht greift.
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"""
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from __future__ import annotations
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import logging
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import re
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logger = logging.getLogger(__name__)
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_ANPASSEN_KEYS = (
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"anpassen", "einstellungen", "customize", "preferences",
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"settings", "individuelle", "auswahl", "manage",
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)
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def _phases(banner_result: dict) -> dict:
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if not isinstance(banner_result, dict):
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return {}
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return banner_result.get("phases") or {}
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def check_cmp_tool_availability(banner_result: dict) -> dict | None:
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"""P92 — Anpassen-Klick aber Settings-Tool defekt / leer."""
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phases = _phases(banner_result)
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settings_ph = phases.get("settings") or phases.get("after_settings_click")
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if not isinstance(settings_ph, dict):
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return None
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initial_ph = phases.get("initial") or phases.get("before_accept") or {}
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initial_text = (initial_ph.get("banner_text") or "").lower()
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if not any(k in initial_text for k in _ANPASSEN_KEYS):
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return None # Wenn kein Anpassen-Button gar nicht im Initial-Banner,
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# ist das P100s Job — nicht hier doppelt melden.
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error = settings_ph.get("error") or settings_ph.get("status_error")
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settings_text = (settings_ph.get("banner_text") or "").strip()
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has_categories = bool(
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settings_ph.get("categories")
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or settings_ph.get("category_tests")
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or (settings_ph.get("structured_checks") or [])
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)
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has_toggles = bool(re.search(r"checkbox|toggle|switch|aria-checked",
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(settings_ph.get("banner_html") or ""), re.I))
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timed_out = bool(settings_ph.get("timeout"))
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failure_signals: list[str] = []
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if error:
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failure_signals.append(f'Fehler: {str(error)[:120]}')
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if timed_out:
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failure_signals.append('Zeitueberschreitung beim Laden')
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if len(settings_text) < 80 and not has_categories:
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failure_signals.append(
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f'Settings-Bereich nur {len(settings_text)} Zeichen, '
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'keine Kategorien sichtbar'
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)
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if not has_toggles and not has_categories:
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failure_signals.append(
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'Keine Checkboxen / Toggles im Settings-Bereich'
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)
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if not failure_signals:
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return None
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return {
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"severity": "HIGH",
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"code": "cmp_tool_unavailable",
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"label": 'Cookie-Einstellungen ueber "Anpassen" formal vorhanden, '
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'Tool laed aber nicht oder ist leer',
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"detail": " | ".join(failure_signals),
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"legal_basis": "Art. 7 (3) DSGVO + EDPB 03/2022 — die Moeglichkeit "
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"zur granularen Auswahl muss tatsaechlich funktionieren.",
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}
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def _normalize_cookie_names(items) -> set[str]:
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out: set[str] = set()
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if not items:
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return out
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for it in items:
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if isinstance(it, str):
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name = it.strip()
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elif isinstance(it, dict):
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name = (it.get("name") or it.get("cookie") or it.get("id") or "").strip()
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else:
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continue
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if name and len(name) <= 120:
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out.add(name.lower())
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return out
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def check_init_banner_vs_cookie_doc(
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banner_result: dict,
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cookie_doc_text: str | None,
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) -> dict | None:
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"""P94 — Cookie-Liste im Init-Banner vs in der Cookie-Richtlinie."""
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if not cookie_doc_text or len(cookie_doc_text) < 500:
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return None
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phases = _phases(banner_result)
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banner_cookies = _normalize_cookie_names(
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(phases.get("settings") or {}).get("cookies") or []
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) | _normalize_cookie_names(
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(phases.get("initial") or phases.get("before_accept") or {}).get("cookies") or []
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)
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# Aus dem Cookie-Doc-Text: Cookie-Namen sind typischerweise
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# camelCase oder _underscored, 4-40 Zeichen, ohne Leerzeichen.
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candidates = set(re.findall(
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r"\b([A-Za-z_][A-Za-z0-9_\-\.]{3,40})\b", cookie_doc_text
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))
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# Filter: heuristisch wahrscheinliche Cookie-Namen
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doc_cookies: set[str] = set()
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for c in candidates:
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cl = c.lower()
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if any(p in cl for p in (
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"_ga", "_gid", "_gcl", "_fbp", "uc_", "ot_",
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"cookieconsent", "sessionid", "csrf", "ajs_", "amp_",
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"datadome", "incap_", "_pk_", "wp-", "yt-",
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)):
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doc_cookies.add(cl)
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elif re.match(r"^[a-z][a-z0-9_]{3,30}$", cl) and (
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"cookie" in cl or "consent" in cl or "track" in cl or "session" in cl
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):
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doc_cookies.add(cl)
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if len(doc_cookies) < 5 or not banner_cookies:
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return None # Datenlage zu duenn fuer sinnvolle Aussage.
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only_in_doc = doc_cookies - banner_cookies
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only_in_banner = banner_cookies - doc_cookies
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if len(only_in_doc) < 5 and len(only_in_banner) < 3:
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return None # Tolerable Abweichung.
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severity = "MEDIUM"
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# HIGH wenn beide Seiten massiv abweichen — dann fehlt klar
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# die Cross-Reference.
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if len(only_in_doc) >= 15 and len(only_in_banner) >= 5:
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severity = "HIGH"
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return {
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"severity": severity,
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"code": "banner_cookie_doc_mismatch",
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"label": (
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f"Cookie-Liste im Banner-Einstellungen ({len(banner_cookies)}) "
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f"weicht von Cookie-Richtlinie ({len(doc_cookies)}) ab"
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),
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"detail": (
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f"Nur im Cookie-Dokument: {len(only_in_doc)} Cookies (Beispiele: "
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f"{', '.join(sorted(only_in_doc)[:5])}). "
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f"Nur im Banner: {len(only_in_banner)} Cookies. "
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"Empfehlung: eine der beiden Quellen als Single-Source-of-Truth "
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"definieren und die andere automatisch generieren."
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),
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"legal_basis": (
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"Art. 13(1)(c) DSGVO + Art. 12 DSGVO — Informationen ueber die "
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"Verarbeitung muessen vollstaendig und konsistent sein."
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),
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}
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def check_banner_vs_cmp_partner_count(
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banner_result: dict,
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cmp_vendors: list | None,
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) -> dict | None:
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"""P75 — Banner nennt N Partner, CMP-Payload listet viel mehr.
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Wenn der Banner-Text behauptet "5 Partner" oder "Wir und unsere
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Partner", die CMP-Payload aber 100+ Vendors enthaelt, wird der
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User getaeuscht.
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"""
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cmp_count = len(cmp_vendors or [])
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if cmp_count < 20:
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return None
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initial_ph = (_phases(banner_result).get("initial")
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or _phases(banner_result).get("before_accept") or {})
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banner_text = (initial_ph.get("banner_text") or "")[:5000]
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if not banner_text:
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return None
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m = re.search(r"\b(\d{1,4})\s*(?:partner|drittanbieter|vendor|"
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r"anbieter|dienstleister)", banner_text, re.I)
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if not m:
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return None
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claimed = int(m.group(1))
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if claimed >= cmp_count * 0.6:
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return None # Zahl im Banner ist plausibel.
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return {
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"severity": "HIGH",
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"code": "banner_understates_vendor_count",
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"label": (
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f"Banner-Text nennt {claimed} Partner, CMP-Payload listet "
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f"{cmp_count} Vendors"
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),
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"detail": (
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f"Die im Banner-Text genannte Zahl ({claimed}) unterschaetzt die "
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f"tatsaechliche Anzahl der Empfaenger ({cmp_count}) deutlich. "
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"Empfehlung: Banner-Text auf die echte Vendor-Zahl heben oder "
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"die Vendor-Liste reduzieren."
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),
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"legal_basis": (
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"Art. 13(1)(e) DSGVO + EDPB 5/2020 — die Empfaenger / "
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"Empfaengerkategorien muessen vollstaendig und nicht "
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"verharmlosend angegeben sein."
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),
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}
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def run_all(banner_result: dict, cookie_doc_text: str | None = None,
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cmp_vendors: list | None = None) -> list[dict]:
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findings: list[dict] = []
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try:
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f1 = check_cmp_tool_availability(banner_result)
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if f1:
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findings.append(f1)
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except Exception as e:
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logger.warning("P92 cmp_tool_availability failed: %s", e)
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try:
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f2 = check_init_banner_vs_cookie_doc(banner_result, cookie_doc_text)
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if f2:
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findings.append(f2)
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except Exception as e:
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logger.warning("P94 init_vs_cookie_doc failed: %s", e)
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try:
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f3 = check_banner_vs_cmp_partner_count(banner_result, cmp_vendors)
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if f3:
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findings.append(f3)
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except Exception as e:
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logger.warning("P75 banner_vs_cmp_count failed: %s", e)
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return findings
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def build_consistency_block_html(findings: list[dict]) -> str:
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if not findings:
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return ""
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items: list[str] = []
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for f in findings:
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sev = f.get("severity", "MEDIUM")
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sev_color = "#dc2626" if sev == "HIGH" else "#d97706"
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items.append(
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f'<li style="margin-bottom:10px;font-size:11px;line-height:1.5">'
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f'<strong style="color:{sev_color}">[{sev}] {f.get("label","")}</strong>'
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f'<div style="color:#475569;margin-top:3px">{f.get("detail","")}</div>'
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f'<div style="color:#94a3b8;margin-top:2px;font-style:italic">'
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f'{f.get("legal_basis","")}</div>'
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f'</li>'
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)
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return (
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'<div style="font-family:-apple-system,BlinkMacSystemFont,sans-serif;'
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'max-width:760px;margin:0 auto 16px;padding:14px 18px;'
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'background:#fef3c7;border:1px solid #fcd34d;border-radius:8px">'
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'<div style="font-size:11px;color:#92400e;text-transform:uppercase;'
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'letter-spacing:1.2px;margin-bottom:4px;font-weight:600">'
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'Banner-Konsistenz-Pruefung</div>'
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f'<h3 style="margin:0 0 6px;font-size:14px;color:#1e293b">'
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f'{len(findings)} Konsistenz-Finding{"s" if len(findings) != 1 else ""} '
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'zwischen Banner-UI und Cookie-Richtlinie</h3>'
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'<ul style="margin:8px 0 0 18px;padding:0">'
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+ "".join(items) +
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'</ul></div>'
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)
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