8 Commits

Author	SHA1	Message	Date
Claude Opus 5	76a5e92f2e	An instance had no way to look like itself: the top bar said "Dorfteich" ... whatever the operator called their instance, `instance.name` was never rendered in the running app at all, and there was no favicon anywhere — `index.html` had no `<link rel="icon">` and `public/` held only fonts and theme-init.js. Where the line is drawn, and why: - **The api never decodes an image.** Cropping, scaling and the conversion to PNG happen on a canvas in the browser; the api checks the PNG signature, reads the IHDR dimensions at their fixed offsets and enforces the caps. An image library would put a decoder in front of attacker-supplied bytes AND would have to be carried through the `--network none` offline build. Reading two big-endian integers is not decoding. - **SVG is refused**, with its own error message rather than a generic "not a PNG": it can carry script, and serving it from our own origin would be a cross-site-scripting vector. An operator who tried one should learn that it is deliberate. - **The crop is driven by number inputs, not by dragging.** A drag-only cropper excludes keyboard and switch users outright; a number input is arrow-key operable and screen-reader readable without any custom aria. The resulting pixel size is stated in text, not only drawn as a frame. - **The variant is chosen by CSS, not JavaScript.** `theme-init.js` has already resolved `data-theme` before first paint, so the correct logo is the one painted rather than the one that appears after a flash. Without a dark variant the LIGHT logo carries both themes — the operator's own asset shown unchanged beats one they did not choose (the rule #307 extends to ponds). The settings screen warns; it never blocks. - **The favicon link is static, its resource dynamic.** index.html stays a static file and the api answers with the uploaded icon or a shipped default — that route must never 404, or the browser keeps its generic icon for good. The default is generated by a script from Node's own zlib (`gen-default-favicon.mjs`), for the same offline-build reason. - Both favicon sizes are uploaded together: one source, one crop, so the tab icon and the home-screen icon can never disagree. - Branding is served WITHOUT a session, because the login screen carries it and the browser fetches the favicon before anyone signs in. The admin screen says so — an operator may not expect their logo to be public. - The metadata is not writable through the settings endpoint: it describes bytes on disk, and hand-writing it would claim an asset that is not there. `./data/branding` follows the three-step rule #303 paid for: env default + `data-dirs.ts` entry, compose volume (repo AND the stages on ONE), and the `mkdir`/`chown` line in the api Dockerfile. `data-dirs.test.ts` is new and closes the hole that made #303's variant invisible: the nightly archive skips a missing directory WORDLESSLY, so the fence now demands that every `*_DIR` the backup env declares actually travels in the archive. Verified against the real defect — removing the line fails it by name. Audit catalogue v1.7 (`branding.changed`), carrying `scope` from the start so #307 is the same event with a different scope, not a second id. Verified: api suite 103 files green (a lone `public-api` ECONNRESET under local parallel load, green in isolation — the documented local flake); branding suite 12 tests against a real directory; crop arithmetic unit tests; a11y pack 11/11 in both schemes; /admin measured at 320px with the new section (overflow 0); and the whole flow walked in the browser: upload → crop 780×180 → stored as 512×118 → logo in the sidebar linking home with the instance name as its accessible name → topbar wordmark following `instance.name` → light logo still shown under `data-theme="dark"`.	2026-08-01 19:28:11 +02:00
Claude Opus 5	b96997501a	#303: operator-uploaded fonts — storage, API, PDF embedding, backup ... An operator holding a font licence could only use it by baking the file into a custom image, which tied every change to a rebuild and left the file out of the backup. ADR 0016 said there is no runtime font management. It also listed this exact case under "Alternatives considered" — *may become a Site-Admin- level feature later*. The amendment takes that option and answers the two objections it raised: licensing risk (Site Admins only, licence recorded with the family) and file-format attack surface (magic-byte check and a size cap, never a parse). - `CUSTOM_FONTS_DIR` (default `./data/fonts`) — a sibling of uploads and plugins, NOT inside the image-baked `FONTS_DIR`, where a deploy would overwrite it and no backup would ever see it. - One list of data directories (`apps/backup/src/data-dirs.ts`) now feeds both the nightly archive and the restore, so they cannot drift. #306 and #307 add one line each instead of a second mechanism. - Both Dockerfiles bake the path. The backup image sets its volume paths itself ("self-sufficient without compose env" — #71's lesson) and reads no *_DIR from compose; without the ENV entry the archive would have skipped the directory silently. - The PDF path already read WOFF2 from disk at request time, so it only had to pick the other base directory for a custom family. - `fontStack`/`fontEntry` take the instance's uploaded families as an argument — they are runtime data. The catalog is searched first, and a colliding family name is rejected at upload, so a custom font can never shadow a catalog one. - Deletion is never blocked by usage: an unknown family already falls back to the system stack, so affected ponds degrade instead of breaking. The count of affected ponds travels into the audit entry. - Audit catalogue v1.6 (`font.uploaded`, `font.deleted`). Verified: api full suite against a fresh database, 102 files / 571 tests. The upload suite writes into a real temp directory and reads the bytes back off disk, so the storage layer is exercised rather than mocked.	2026-08-01 14:49:13 +02:00
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	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	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	488d0d06f1	#205: classification inherits down the tree; lowering is a guarded, audited act ... New pages take max(instance default, parent level); moving a subtree under a higher-classified parent raises every member below that level. No move-like path (reposition, trash-promote, purge-promote) lowers a level as a side effect — pinned by test. Raising is ordinary editorial work; lowering requires the dedicated capability canLowerClassification (pond-wide Pond Admin) in the central permission model. Both directions are audited (page.classification_raised/_lowered, catalogue v1.1) with old value, new value, actor and page. Co-Authored-By: Claude Fable 5 (1M context) <noreply@anthropic.com>	2026-07-31 06:12:26 +02:00
Claude Fable 5	000d110727	#201: stable audit event catalogue for syslog/SIEM export ... The 36 audit action ids become a typed union (AUDIT_EVENTS in audit-actions.ts) — an uncatalogued id is now a compile error; every existing id keeps its name. The published, versioned catalogue (docs/architecture/audit-events.md, v1.0) documents per event: trigger, severity, actor and target semantics, and every field, plus the compatibility promise (ids are never repurposed; retiring keeps the row forever) and the stable stdout field set. audit-catalogue.test.ts is the fence: it parses the document's event tables and fails when ids or severities drift from the code (negative case verified). Audit stdout lines now carry the catalogue severity as a routing hint — pino level stays 30 so transport is unaffected; no DB migration. Forwarding path documented: container stdout -> operator's collector; deliberately no application-side syslog client. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0168Ph5uBmHm8X28CSVpbpnJ	2026-07-31 04:51:09 +02:00