11 Commits

Author	SHA1	Message	Date
Claude Fable 5	9b7acab294	#232: plugin allowlist with SHA-256 hash pinning ... The install path records the SHA-256 of the delivered bundle ZIP (plugins.bundle_hash; pre-#232 installs show it as unknown until reinstalled). plugins.allowlist in instance_settings names permitted ids with their pinned hashes: empty (default) = not enforced, existing instances unchanged; non-empty = installs of unlisted or deviating bundles are rejected (plugin_not_pinned / plugin_hash_mismatch, 403), and an installed plugin outside the list or with a deviating hash does not load — absent from pond mount lists, frame/assets 404. Every rejection is audited (plugin.rejected, catalogue v1.5). A version bump changes the hash and therefore requires an explicit re-pin — the intended friction (ADR 0025). Admin UI shows observed vs pinned hash per plugin with pin/re-pin/unpin. Scope stated honestly in plugin-architecture.md: the pin answers "is this the reviewed bundle"; post-install disk tampering is platform integrity (ADR 0019), sandbox containment stays the sandbox's job. Hardening guide row + catalog advisory triage; residual risk R-03 resolved. e2e: empty-allowlist compatibility, pinned load, unpinned and tampered installs rejected and audited, pin drift blocks loading while the admin still sees the mismatch, version bump needs re-pin. Full api suite 101 files / 561 green. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8	2026-07-31 21:26:36 +02:00
Claude Fable 5	4d9f913845	#246: mode enforced — reject profile-violating configuration writes ... In enforced mode the ONE settings write path every caller uses rejects catalog-violating values with the stable code vs_nfd_profile_violation (403 — the request is well-formed, the policy says no). Existing violating values are reported at startup (log line, database-less boots must not fail) and on the admin card, never auto-changed. The UI renders as in hidden (#245 already keys on hidden|enforced). The hardening guide now names enforced as the recommended mode for VS-NfD reference operation. Tests: violating write rejected with the stable code and nothing stored; compliant writes pass; the same violating write passes in marked and hidden (own app boots); pre-existing violation reported and untouched. Full api suite 100 files / 555 green. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8	2026-07-31 19:48:37 +02:00
Claude Fable 5	da5fd7c770	#243: VS_NFD_MODE and the machine-readable hardening-profile catalog ... The deployment declares through VS_NFD_MODE (off | marked | hidden | enforced, default off) how the application treats configuration that violates the VS-NfD reference profile — deploy-level like BACKUP_ALLOWED_TARGETS, so a compromised Site Admin cannot widen it. The catalog in shared (vs-nfd-profile.ts) is the single source of truth: every profile-relevant setting with a decidable compliant value, judgement calls in an explicit advisory list, and a fence test parsing the hardening guide's reference tables so neither can drift (pattern #201). The api evaluates the catalog against the typed settings registry and validated env and exposes mode + verdict on GET /admin/system/vs-nfd-profile; the admin settings view shows the card whenever the mode is not off. Display only — the treatments land with #244–#246 (ADR 0027, proposed). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8	2026-07-31 18:24:04 +02:00
Claude Fable 5	6aac785841	#217: map IdP groups and roles onto the permission model ... Declarative instance setting idpMapping.rules turns ID-token claims into pond roles and the site-admin flag on every OIDC login — configuration, not code. Mapped grants travel through the SAME GrantsService path as manual ones (permission cache invalidated, collab access notify fires so live sessions revalidate — asserted by test), never raw rows. Ownership makes precedence explicit: role_grants.origin marks mapped rows, users.is_site_admin_managed marks a mapping-set admin flag. The mapping only creates and revokes what it owns — manual wins: hand-made grants and hand-promoted admins are never revoked by a missing claim (a manual toggle clears the marker and takes ownership). Removal of a claim revokes the mapped grant and the managed flag on the next login. Every mapping-driven change is audited with origin idp_mapping. Failure containment: unknown pond slugs and the last-Pond-Admin protection log-and-skip — a mapping problem must never become a login lockout. Tests drive real OIDC logins against the fake IdP with group claims: grant + working access, revocation incl. notify, manual-wins, managed site-admin promote/demote/hands-off. Documented in permissions.md (own section), ADR 0021, data-model.md and the hardening guide (care rule: same PR). Refs #217. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8	2026-07-31 13:09:11 +02:00
Claude Fable 5	13f0311d8e	#216: hard AUTH_LOCAL_ENABLED switch over every local credential flow ... The deploy-level realization of auth.local.enabled (ADR 0021): FALSE answers 404 on every local credential flow — login, signup, e-mail verification, resend, password forgot/reset/change — enforced centrally in the auth guard via the @LocalCredentialFlow() marker before any session or CSRF logic runs. Deploy-level on purpose: a compromised Site Admin cannot reopen the local path, so the runtime-flip residual risk from ADR 0021 does not materialize (R-02 closed in the risk list). An enumeration fence fails when an auth route is neither marked nor on the reviewed allowlist, so a new credential flow cannot ship unswitched. Stated decisions, each tested: sessions/logout keep working for externally authenticated users; PAT and feed-token issuance stays available (API authorization under its own switches, not interactive sign-in). Bootstrap: complete setup (or SETUP_ADMIN_* pre-seed) before flipping; the api warns at boot when local auth is off with neither OIDC nor proxy auth configured. GET /auth/methods reports local:false and the login page hides the local form and credential links. Hardening guide: the planned auth.local.enabled row moves from 1.3 into the live deploy table with the bootstrap ordering, and the verification checklist gains the login-404 probe. Refs #216. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8	2026-07-31 12:58:07 +02:00
Claude Fable 5	4c7f001cab	#215: trusted reverse-proxy header / mTLS client-certificate path ... For perimeters that authenticate before the application (ADR 0021 §4). Off unless BOTH AUTH_PROXY_HEADER and AUTH_PROXY_TRUSTED_PEERS are set — nothing about the header is guessed. The peer check runs against the TCP peer address only (a forwarded header is attacker-influenced): a request carrying the header from any other peer is rejected outright and audited as auth.proxy_rejected (catalogue v1.4) — that is a spoof attempt, not a misconfiguration — even when a valid session cookie rides along. From a trusted peer the header IS the identity; a session cookie never escalates beyond it; with the feature off the header is inert. Mapping is explicit (AUTH_PROXY_MAP: username or e-mail); deliberately no just-in-time creation — the header carries no verified address. The mTLS variant (AUTH_PROXY_MODE=mtls-dn) maps the configured attribute (default CN) out of the certificate subject DN the TLS terminator forwards, under the same peer rules. Session-less proxy requests key the read trail per user (user:<id>). The trust boundary is stated in security.md (the section an assessor reads closest), the VS-NfD security documentation and the hardening guide's deploy table. Tests cover all four decisions: off = inert, trusted peer authenticates (username and DN mapping), untrusted peer rejected + audited, no escalation past a session cookie. Refs #215. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8	2026-07-31 12:50:09 +02:00
Claude Fable 5	5796b7a5dd	#214: OIDC Authorization Code with PKCE, Keycloak as reference IdP ... External authentication (ADR 0021) built on jose (#188's vetted library) plus fetch — no new dependency enters the supply chain for a security base function. Discovery-configured; ID tokens validate against the IdP's JWKS under an explicit RS256/ES256 allowlist with issuer, audience, expiry and nonce binding. State, nonce and the PKCE verifier travel in a signed HttpOnly Lax cookie keyed by a dedicated HKDF purpose (oidc-state, ADR 0020). Deploy-level configuration (OIDC_ISSUER/CLIENT_ID/CLIENT_SECRET/SCOPES/ PROVIDER_LABEL): who authenticates users is a platform decision. The login page discovers the provider via GET /auth/methods and renders the SSO button (i18n de+en). Identities use the existing slot (provider oidc:<issuer>, subject from the token). First login creates the account just-in-time — ACTIVE and mail-verified only when the IdP asserts a verified address. An existing local account is NEVER adopted silently by e-mail (account-takeover path): login refuses with oidc_link_required and the owner links explicitly via GET /auth/oidc/link (audited auth.identity_linked, catalogue v1.3). Sessions come from the one existing session service. Tests run the full flow against a protocol-faithful fake IdP: PKCE verifier at the token endpoint, JIT creation incl. personal pond, invalid state/nonce/signature/issuer/audience/expiry each rejected, the linking refusal and the explicit link flow. Verified end-to-end against a real Keycloak 26.0 (repeatable procedure documented in security.md §External authentication). Refs #214. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8	2026-07-31 12:44:52 +02:00
Claude Fable 5	4af5e6e81f	#225: read-trail master switch and written purpose limitation ... New instance switch readTrail.enabled, default OFF: read logging is employee monitoring in a works council's eyes — an ordinary instance must not surveil reads. Off means no event is written ANYWHERE (no row, no stdout line, verified by test); the api announces the switch position once per boot, so an eventless trail is never ambiguous — a gap reads as "was off", never "was lost". The written purpose limitation ships as section 7 of the VS-NfD security documentation (#228): what is recorded (no content, no titles, no IPs, no fingerprinting), why (evidence for reads of marked content only — variant A is the technical anchor of the promise), who may read it (Site Admin, API-only), for how long (readTrail.retentionDays, audited pruning), and what it may NOT be used for (no performance or behaviour monitoring). The hardening guide's reference configuration turns the trail on (reference value true) and points to that text; the existing trail suites now enable the switch explicitly. Refs #225. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8	2026-07-31 12:35:18 +02:00
Claude Fable 5	2bdb0ec2cf	#224: read-trail storage — partitioning, retention, admin query path ... Convert read_events to monthly RANGE partitions on occurred_at, with a DEFAULT partition as safety net: a lagging maintenance job must never turn the trail's hard-failure semantics into an outage for classified reads. The dedup unique pair (#223) moves to per-partition indexes (PostgreSQL cannot carry it on the parent); a bucket spanning a month boundary may record one duplicate — over-recording is acceptable, gaps are not. New daily job read-trail-maintenance (job-count fence 9 -> 10) creates months ahead — each with its dedup index — and applies the trail's own retention readTrail.retentionDays (default 365, deliberately independent of audit.retentionDays): whole expired months are DROPped without scanning, remainders deleted by range, every run audited as read_trail.pruned (catalogue v1.2; the fence regex now admits an underscore namespace). Site-Admin query path GET /admin/system/read-events answers "who read page X" and "what did user Y read" within a period — API-only by design, documented. Growth measured and documented in data-model.md: ~1 MB per 1000 events including indexes. Tests: retention pruning + audited deletion + admin queries on the shared database; the partitioned shape, per-partition P2002 dedup, months-ahead creation and DROP-based pruning against a fresh database built by the real migration chain. Refs #224. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8	2026-07-31 12:21:45 +02:00
Claude Fable 5	fd4fd60c99	#223: dedup window for the read trail ... One event per (session, page, channel) within an aligned window of readTrail.dedupWindowMinutes (default 5): buckets are floor(epoch / windowSeconds), and a unique (dedup_key, window_bucket) pair collapses concurrent duplicates race-free at insert time — the first access in a window is always recorded, a later duplicate lands on the unique violation and is skipped quietly (a skipped duplicate is not a gap; only real write failures still abort the read). Each row carries windowSeconds, so the evidence states it represents a window, never a request count. Reconnects within a window stay one event; a new session records again even for the same user; channels never collapse into each other; the page-less attachment key uses the documented `-` placeholder. Load evidence: 30 collab-token renewals inside one window produce exactly one event (test), bounding a live editing session at ~12 events/hour/page. Window semantics documented in ADR 0023, the VS-NfD security documentation (#228) and as a hardening-guide line for the new setting (care rule: same PR). Refs #223. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8	2026-07-31 12:13:21 +02:00
Claude Fable 5	2c6eff85f3	#227: hardening guide with the VS-NfD reference configuration ... docs/vs-nfd/50-haertungsleitfaden.md: one adoptable profile — every entry with the exact switch name, value, default and the reason, split into instance settings (registration closed, api/mcp off, feeds off, plugins off, classification defaults vs_nfd + upload block, svg reject, minimal extension list) and deploy-level configuration (empty BACKUP_ALLOWED_TARGETS enforces backup-local-only outside Site-Admin reach; tightened session hours; SMTP deliberately unconfigured with the consequence stated honestly). auth.local.enabled is listed as the one pending row (#216) with its compensation until then; the guide states the binding updated-in-same-PR rule for every future switch. Includes an operator verification checklist (four unauthenticated 404 curls + readyz + admin spot checks). Cross-referenced from the delimitation statement (file names made concrete) and consumed by the Grundschutz mapping (#230). Co-Authored-By: Claude Fable 5 (1M context) <noreply@anthropic.com>	2026-07-31 10:35:26 +02:00