feat: MQA quality scoring — Phase 3a URL reachability (opt-in, v2.15.0)#57
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Add the optional URL-reachability metrics of the MQA accessibility dimension. - New setting "URL-Erreichbarkeit prüfen" (Quality (MQA) section, default OFF). When enabled, dcat:accessURL and dcat:downloadURL are checked via HTTP HEAD (GET fallback on 405/501) on save; status 200–399 counts as reachable. - Results are cached for 24h in a per-URL transient, so repeated saves don't re-request. Short 5s timeout. - With the setting on, the assessable maximum rises from ~295 to ~375 of 405; only DCAT-AP SHACL (30) remains "not assessed". Privacy/perf: opt-in, requests go only to the dataset's own URLs (no third-party service). Meta-box "not assessed" hint made phase-agnostic (points to the "–" markers). i18n: 4 new strings; en_US.mo recompiled. Version 2.15.0. Tests: 151 pass (2 added: reachability cache-hit + 2xx mapping), PHPStan clean, PHPCS exit 0. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01JB1xUQM892bVZ4Yv3MZjvq
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MQA-Scoring — Phase 3a: URL-Erreichbarkeit (opt-in)
Ergänzt die netzwerkabhängigen Erreichbarkeits-Metriken der Zugänglichkeits-Dimension (80 Punkte) — als Opt-in, wie besprochen (Option A: nur Erreichbarkeit, kein Fremddienst).
Umsetzung
dcat:accessURLunddcat:downloadURLbeim Speichern per HTTP HEAD geprüft (GET-Fallback bei 405/501); Status 200–399 = erreichbar.Datenschutz / Performance
Verifikation
en_US.moneu kompiliert · Version → 2.15.0Verbleibend: nur noch Phase 3b (DCAT-AP-SHACL, 30 P) über einen externen Validator — separat/optional.
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