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75 commits

Author SHA1 Message Date
41dff23127 feat(handler): per-directory <dir>/.zddc.html editor URL
Add a virtual-URL alias so the existing form-based .zddc editor is
reachable at the natural directory location (<dir>/.zddc.html) in
addition to the legacy /.profile/zddc/edit?path=<dir> entry. Both
flow through the same renderZddcEditor body — same template, same
gate, same form-posts-to-/.profile/zddc semantics.

Wiring:

- IsZddcEditorRequest(urlPath) reports whether the URL ends with
  the .zddc.html leaf (case-fold not needed; .zddc is itself case-
  sensitive on disk).
- ServeZddcEditorAtPath strips the leaf, resolves the parent dir,
  asserts the dir exists, gates on hasAnyAdminScope, calls the
  shared renderer.
- The dispatcher routes IsZddcEditorRequest URLs BEFORE the dot-
  prefix segment guard (which would otherwise 404 the .zddc.html
  leaf). The route is method-gated GET-only; mutations still go
  through PUT/POST/DELETE on <dir>/.zddc via the file API.

Permission model unchanged from the /.profile entry: hasAnyAdminScope
gates visibility of the editor itself; CanEditZddc decides whether
the form is interactive or read-only at the requested directory.
Subtree admins can still inspect ancestor cascade ACLs (intended
since the cascade is what determines their authority).

Test (TestDispatchZddcEditorAtPath): root admin opens project /
working/ / deployment-root editors; non-admin and anonymous both
404; missing directory 404; trailing-segment-after-leaf 404.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-07 11:37:36 -05:00
f7958d7b22 feat(dispatch): trailing slash → browse, no slash → canonical default tool
URL convention for directories under a project:

- <dir>/  (with trailing slash)  → browse (the directory view; same
                                     behaviour as today)
- <dir>   (without trailing slash) → the canonical default tool for
                                     that directory's context, served
                                     inline (no 301 hop)

Tool mapping via the new apps.DefaultAppAt(root, dir):

  - working/...               → mdedit
  - staging/...               → transmittal
  - archive/                  → archive
  - archive/<party>/          → archive
  - archive/<party>/incoming|received|issued/...  → archive
  - archive/<party>/mdl/...   → tables (the per-party MDL grid editor)

Directories outside the canonical layout (project root, scratch
folders) keep the legacy 301-to-trailing-slash redirect since no
default tool fits.

This generalises and replaces the bespoke
"GET archive/<party>/mdl/ → 302 mdl.table.html" redirect added in PR4.
The new dispatcher rule serves the table app inline at the bare-mdl
URL by routing through RecognizeTableRequest with the canonical
.table.html suffix appended; relative fetches resolve identically
because both URLs share the same parent directory.

Tests: TestDefaultAppAt covers all canonical positions plus
case-fold and out-of-tree edges. TestDispatchSlashRouting (replacing
the now-obsolete TestDispatchMdlRedirect) verifies the slash-vs-no-
slash distinction at every canonical folder + non-canonical
fallback.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-07 11:26:32 -05:00
821ed3ee19 feat(handler): mdl/ → table-app default with embedded fallback spec
Three pieces wire the per-party Master Deliverables List as the default
view at archive/<party>/mdl/:

1. **Dispatcher redirect.** GET (and HEAD) on
   <project>/archive/<party>/mdl/ (case-fold on archive and mdl) now
   302 → <project>/archive/<party>/mdl.table.html. Non-archive paths
   and deeper mdl/ paths fall through unchanged.

2. **Default-spec fallback in RecognizeTableRequest.** When a request
   matches archive/<party>/mdl.table.html and no operator-supplied
   tables: { mdl: ... } declaration covers it, the handler returns a
   recognised request anyway. Operator declarations still win — and a
   typo'd declaration pointing at a missing file yields 404 (not a
   silent fallback).

3. **Static-file fallback for the spec yaml.** GET archive/<party>/
   mdl.table.yaml and archive/<party>/mdl.form.yaml return embedded
   default bytes (default-mdl.{table,form}.yaml in the handler package)
   when no operator file exists at that path. Operator files always
   win because the dispatcher's os.Stat finds them before reaching the
   IsDefaultMdlSpec branch.

The defaults use ZDDC vocabulary: tracking, title, discipline, type,
plannedRevision, plannedDate, status (DFT/IFR/IFA/IFC/AFC/AB), owner,
notes. Operators override per-party by writing
archive/<party>/{mdl.table.yaml,mdl.form.yaml} and a tables: { mdl: ... }
entry in the party's .zddc.

Tests:
- 4 dispatcher redirect cases (success, case-fold mdl, case-fold archive,
  deeper-path skip, non-archive skip)
- 6 tablehandler cases (default fires at archive/<party>/, operator
  override wins, scope check, embedded yaml served, operator yaml wins,
  scope check on yaml fallback)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-07 09:26:53 -05:00
a0f9fca95d feat(archive): canonicalize deep .archive URLs + permissions follow the file
The .archive virtual prefix is now project-scoped at exactly one URL
depth: any /<project>/<sub>/.../.archive/... gets a 301 to the
canonical /<project>/.archive/.... The dispatcher does this before
calling the handler; query strings are preserved (the browser handles
the fragment automatically). .archive is also GET/HEAD-only — anything
else returns 405 with Allow: GET, HEAD, ahead of the file API.

Why: offline-built HTML files reference siblings as
"../.archive/<tracking>.html" from arbitrary depths. All of those refs
should converge on a single stable URL per (project, tracking) so
external links and bookmarks don't fork by entry point.

Permissions now follow the resolved file, not .archive itself.
.archive is a virtual surface — it has no on-disk directory and no
.zddc of its own, so gating it as if it did is wrong. Two gates only:

  - Resolve: only the per-target file's ACL chain decides. A user
    explicitly allowed at one transmittal folder but denied at the
    project root can still fetch tracking numbers that resolve there.
    Per-target denial returns 404 (not 403) so existence doesn't leak.

  - Listing: filter entries by per-target ACL. If the project bucket
    has zero indexed entries → 404 (unknown / empty project, indistinguishable
    from a probe). If the bucket is non-empty but the caller can read
    no entries → 403 (existence-leak guard: don't confirm an inaccessible
    project's archive exists). Otherwise → 200 with the filtered subset.

The listing endpoint is now content-negotiated like ServeDirectory:
Accept: text/html serves the embedded `browse` SPA bytes (with the
embedded ETag and X-ZDDC-Source: embedded:browse); Accept:
application/json returns the JSON entry array (with content-hash ETag
and 304 short-circuit). Vary: Accept set on both. The browse SPA's
auto-detect path-fetch then renders the archive entries as a sortable,
filterable flat list at /<project>/.archive/.

ServeArchive's signature is now (cfg, idx, w, r, project, filename) —
the dispatcher hands the normalized project string in directly, so
projectFromContextPath is gone. Old behavior was to derive project
from contextPath inside the handler; with the upstream redirect that's
redundant and the handler's preconditions are simpler.

Tests: archivehandler_test.go rewritten around the new semantics;
added per-target-only resolve, project-root-deny + per-target-allow
rescue, listing 403/404 distinction, JSON/HTML content-negotiation,
and conditional GET. main_test.go gains TestDispatchArchiveRedirect
(deep paths, query preservation, already-canonical no-op) and
TestDispatchArchiveMethodGate (PUT/POST/DELETE → 405).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-07 06:28:07 -05:00
610b7ef65a feat(archive): periodic rescan + admin reindex endpoint
The fsnotify watcher only sees events the local kernel generates, so on
SMB/CIFS-backed roots (Azure Files) writes from any other client are
invisible — the archive index would silently miss them until pod
restart. Add two backstops:

1. Periodic full re-walk via Index.Rebuild on a configurable interval
   (--archive-rescan-interval / ZDDC_ARCHIVE_RESCAN_INTERVAL, default
   60s, 0 to disable). Atomically swaps ByProject under the existing
   RWMutex; concurrent reads stay safe.
2. Admin-only POST /.profile/reindex that triggers an immediate rebuild
   and returns {duration_ms, project_count, tracking_count}, for the
   "I just dropped 50 files and don't want to wait" case. Gated by
   IsAdmin with the same 404-on-non-admin pattern as the other admin
   sub-resources.

Tests: TestRebuild_PicksUpAddsAndDrops covers add+drop semantics and
returned counts; TestServeProfileReindexPOST covers the happy admin
path; matrix entries cover the gate (anonymous/non-admin → 404, admin
GET → 405 method-not-allowed since the route is POST-only).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 08:50:51 -05:00
9ca36f25d8 feat(tables): new sortable/filterable grid tool for directories of YAML files
Tables is the eighth HTML tool: a read-only tabular view over a
directory of YAML files declared via `tables:` in `.zddc`. Anchor use
case is the Master Deliverables List, where each row is one
`<tracking>.yaml` under `Archive/<Party>/MDL/`. Rows click through to
the existing form renderer for editing.

Schema (zddc/internal/zddc/file.go)
  - New `Tables map[string]string` on ZddcFile. Map key becomes the URL
    stem (`tables[MDL]` → `<dir>/MDL.table.html`); the value is a path
    relative to the .zddc pointing at a `*.table.yaml` spec describing
    columns + the rows directory. No upward cascade in v1 — each
    directory hosting a table declares it directly.

Server handler (zddc/internal/handler/tablehandler.go)
  - `RecognizeTableRequest` matches GET `/<dir>/<name>.table.html`
    against the cascade's `tables:` declarations. Dispatch routes
    table requests before the form-system intercept.
  - `ServeTable` ACL-gates with `policy.ActionRead` and serves the
    embedded `tables.html` template; client walks the directory itself
    via the listing JSON or FS Access API.
  - tables.html embedded via //go:embed — same pattern as form.html.

Frontend (tables/)
  - Vanilla JS: app/context/util/filters/sort/render/main modules.
  - Reads spec + row YAML files via window.zddc.source (HTTP polyfill
    or local FS handle); js-yaml 4.1.0 vendored in shared/vendor for
    client-side parsing.
  - Sample fixtures under tables/sample/ for local testing.

Build + CI
  - Lockstep build registers tables alongside the other 7 tools (HTML
    output, embed mirror, versions.txt, release-output, tags).
  - Playwright project added; `npx playwright test --project=tables`
    is part of `npm test`.

Drive-by: rename mdedit Playwright selectors `#select-directory` →
`#addDirectoryBtn` to fix three pre-existing failing tests.

Drive-by: ignore locally-built `zddc/zddc-server` binary so it doesn't
get accidentally staged.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 20:32:01 -05:00
3115e388fc feat(server): authenticated CRUD + verb-based RBAC with WORM archive folders
Replaces the binary acl.allow/deny model with five permission verbs
(r/w/c/d/a) and first-class roles, and adds an authenticated file API
(PUT/DELETE/POST move/mkdir) so the HTML tools can edit-in-place over
HTTP. Closes the AC-3(7) and AC-6 federal-readiness gaps.

File API (zddc/internal/handler/fileapi.go)
  - PUT <new>      → action c
  - PUT <existing> → action w
  - PUT <.zddc>    → action a (CanEditZddc strict-ancestor rule)
  - DELETE         → action d
  - POST mkdir     → action c (auto-writes creator-owned .zddc when the
                     parent is Incoming/Working/Staging)
  - POST move      → action w on src + c on dst, atomic via os.Rename
  - Optional If-Match for optimistic concurrency, --max-write-bytes cap,
    audit log emits a structured file_write event per operation.

Permission model (zddc/internal/zddc/{acl,file,roles,cascade_mode}.go)
  - acl.permissions: { principal → verb-set } map; principals are email
    patterns or role names. Empty verb set is an explicit deny.
  - roles: { name → members } definitions, available at the level they
    declare and all descendants. Closer-to-leaf shadows ancestor.
  - Legacy acl.allow/deny still work; they fold into permissions at
    parse time (allow → "rwcd", deny → "").
  - Cascade walks leaf→root; first level with any matching entry wins;
    the union of matching verb sets at that level decides.
  - --cascade-mode=strict adds a root→leaf ancestor-deny pre-pass so an
    ancestor explicit-deny is absolute (NIST AC-6). Default delegated
    preserves the existing commercial behavior.

Special folders (zddc/internal/zddc/special.go)
  - Incoming / Working / Staging: mkdir auto-writes a .zddc into the new
    subdir granting created_by + that email rwcda directly. Same form
    operators write by hand; creator can edit it later to add others.
  - Issued / Received: server-enforced WORM split. Cascade grants
    inherited from above the WORM folder are masked to r only; grants
    placed at-or-below the WORM folder retain r,c. Operators grant
    write-once (cr) to the doc controller via an explicit .zddc at the
    Issued/Received folder. Admins exempt — only escape hatch.

Browser polyfill (shared/zddc-source.js)
  - HttpDirectoryHandle + HttpFileHandle implement the FS Access API
    surface (values, getFileHandle, createWritable, removeEntry,
    queryPermission/requestPermission) over zddc-server's listing JSON
    and file API. Existing tools written against showDirectoryPicker
    work unchanged.
  - detectServerRoot() returns { handle, status }: tools auto-load on
    HTTP, surface a clear "no permission to list" message on 403, and
    fall back to the welcome screen on 0.
  - classifier renames take the atomic POST move path on HTTP-backed
    handles; mdedit and transmittal route reads/writes through the
    polyfill so prior FS-API code paths cover both modes.

Tests
  - zddc/internal/zddc/{cascade_mode,roles,special,acl}_test.go cover
    delegated vs strict, role membership / shadowing / legacy fallback,
    WORM split semantics, verb-set parser round-trip.
  - zddc/internal/handler/fileapi_test.go now also covers role-based
    vendor scenarios, WORM blocking vendor & doc controller writes,
    explicit Issued .zddc unlocking the cr drop-box, admin bypass,
    auto-ownership on mkdir, and strict-mode lockouts.

Docs
  - ARCHITECTURE.md + zddc/README.md document the verb model, role
    syntax, special-folder behaviors, cascade-mode flag, and full file
    API surface. Federal-readiness gap analysis strikes AC-3(7) and
    AC-6.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 15:58:04 -05:00
52dde0b014 feat(apps): also accept apps_pubkey: inline in root .zddc
Adds a second way to configure the apps signing pubkey alongside the
existing --apps-pubkey / ZDDC_APPS_PUBKEY (path-to-PEM-file) form: an
inline PEM block under apps_pubkey: in the root .zddc file. Resolution
order:

  1. --apps-pubkey / ZDDC_APPS_PUBKEY  (path)   ← env/flag wins
  2. apps_pubkey: inline PEM in root .zddc       ← second
  3. nothing                                      ← URL fetches refused

Honored only at the root .zddc — same trust-anchor treatment as the
existing admins: field. Subtree write authority cannot re-anchor
trust because subtree apps_pubkey: entries are ignored. (Same
unmarshal pattern as the rest of ZddcFile; the root-only enforcement
is in setupApps where we explicitly read filepath.Join(cfg.Root,
".zddc") rather than walking a chain.)

Why offer both: env/flag fits k8s + systemd deployment shapes where
the operator already manages a config volume and prefers env-based
plumbing. Inline-in-.zddc fits the "everything in one config file"
mental model and matches how operators already think about admins:
and acl:. Either ships a working URL-fetch-verify story; the choice
is operator preference.

Logged differently per source so operators can grep for which path
populated the key:
  apps signing pubkey loaded source=env/flag path=/path/to/pubkey.pem
  apps signing pubkey loaded source="root .zddc apps_pubkey"

Smoke-tested end-to-end: a root .zddc with inline apps_pubkey: PEM
block + apps: archive: <upstream-URL> + ZDDC_APPS_PUBKEY unset —
the server logs "loaded source=root .zddc apps_pubkey" at startup,
fetches the URL, verifies the .sig against the inline key, caches.
Tampering still rejects; missing .sig still rejects; everything that
worked yesterday still works.

Docs: env-var tables in zddc/README.md and AGENTS.md note the
inline alternative; the federal-readiness gap analysis subsection
on code signing now lists both paths in its resolution order; the
release-page "Verify your downloads" section mentions both for
operators.

Production binary unchanged at ~13 MB. All 11 Go test packages green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 06:56:02 -05:00
9765fa2f5e feat(apps): code-signed URL fetches; dev chart overlays prod data RO
Two interlocking pieces shipped together:

1. Strict Ed25519 signature verification on URL-fetched apps artifacts.
   Every URL the apps cascade resolves must publish a corresponding
   <url>.sig (raw 64-byte Ed25519 signature). The fetcher rejects on
   any failure (sig 404, transport error, wrong key, tampered body)
   and the resolver falls back to the embedded copy.

   The trusted public key is OPERATOR-CONFIGURED via --apps-pubkey /
   ZDDC_APPS_PUBKEY (PEM file path). No baked-in default — same posture
   as TLS certificates. Operators using zddc.varasys.io's canonical
   channels download pubkey.pem from there and configure the local
   path. Operators with their own signing infrastructure pass their
   own public key.

   Build pipeline (./build) gains sign_release_artifacts: walks
   dist/release-output/ after promote and produces an Ed25519 .sig
   alongside every real file. ZDDC_SIGNING_KEY=~/.config/zddc-signing/
   key.pem (mode 0600). Symlinks skip — the .sig at the symlink
   target is what counts.

   Test coverage: parse-PEM round-trip, malformed/wrong-type PEM
   rejection, valid-signature accept, tampered-body reject, wrong-key
   reject, malformed-signature reject, end-to-end fetch+sign+verify,
   fetch-rejects-tampered, fetch-rejects-missing-sig, fetch-rejects-
   wrong-key. Existing fetch tests updated to use signed-fixture
   helpers.

2. Dev Helm chart mounts production data READ-ONLY and layers an
   OverlayFS writable scratch on top. Prod data is the lowerdir;
   dev's writes (form submissions, archive index state, .zddc edits)
   land in upperdir; main container sees the merged read-write view
   at $ZDDC_ROOT. Setup runs in a privileged init container; main
   container runs unprivileged. Solves the dev-replica-on-shared-
   dataset problem at the filesystem layer with no zddc-server code
   change.

Docs: env-var tables in zddc/README.md and AGENTS.md gain a
ZDDC_APPS_PUBKEY row. The Federal-readiness gap analysis "Code-signed
apps: URL fetches" subsection is rewritten as "what's currently in
place" instead of "what would need to be added," with a forward
pointer to per-entry signed_by: (multi-key) and Sigstore as the
federally-acceptable evolution.

The website "Verify your downloads" section + the embedded pubkey
gone — but the website needs separate updates landing in zddc-website
to publish pubkey.pem and add the verify section. Pending in that
repo's commit.

Production binary unchanged at 13.1 MB. All 11 Go test packages green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 21:59:07 -05:00
d3a9ea7ad9 feat(server): federal-mode reference Rego (parent-deny-is-absolute)
Ship a second parity-tested Rego policy that flips the cascade's
leaf-allow-overrides-parent-deny rule for NIST AC-6 conformance.

Standard cascade (existing access.rego, mirrors internal Go evaluator):
  Bottom-up walk; first explicit match wins; deny-first within a level.
  A leaf-level allow CAN override an ancestor's deny. This is the
  cascade's intentional delegation property — a project-owner who
  re-allows a previously-denied collaborator works as expected.

Federal mode (new access_federal.rego):
  Any deny anywhere along the chain is absolute. An allow only matters
  if no level (any depth) has denied the same email. Required by
  NIST AC-6 default expectations: a central admin's deny at the root
  must be unbypassable by a tenant who controls a subtree's .zddc.

Operators run real OPA with this Rego and point ZDDC_OPA_URL at it;
the internal Go evaluator stays on the commercial cascade. The
toggle is "which policy does your OPA evaluate," not a knob inside
zddc-server.

Surfaced via --print-rego flag:

  zddc-server --print-rego               # standard (default)
  zddc-server --print-rego=standard      # same
  zddc-server --print-rego=federal       # AC-6 strict variant

Parity test (federal_parity_test.go) compiles both Regos and asserts:
  * They AGREE on every cascade scenario where no ancestor-deny
    intersects a leaf-allow (most cases).
  * They DISAGREE — by design — on the three scenarios where the
    AC-6 rule differs:
      - "leaf allows what parent denied" → standard allows, federal denies
      - "deep leaf re-allows after middle deny" → same
      - "glob deny at root + specific allow at leaf" → same

Cross-checks the divergence flag explicitly so any future change that
accidentally collapses the two policies fails the test.

Closes the AC-6 row of the federal-readiness gap analysis (now marked
"partially complete" in zddc/README.md — the full bullet would be a
built-in --policy-mode=federal toggle that also flips the in-process
Go evaluator).

Production binary unchanged at 13.1 MB (Rego files embedded as bytes;
OPA library remains test-only).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 18:05:44 -05:00
460d5fdada feat(server): TLS hardening per NIST SP 800-52 Rev. 2 + HSTS
The TLS configuration was using Go stdlib defaults — secure for typical
commercial use, but federal evaluators need an explicit cipher
allowlist they can map to a FIPS-validated implementation. Pin the
cipher and curve lists to NIST SP 800-52 Rev. 2 § 3.3 conformant
values:

  Ciphers (TLS 1.2):
    TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
    TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
    TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
    TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
    TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
    TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305

  Curves: X25519, P-256, P-384

  MinVersion: TLS 1.2 (already set; 1.3 used when negotiated)

TLS 1.3 cipher selection is not operator-controllable in Go stdlib
(the runtime picks from a fixed AEAD-only set); all of those
already meet the federal bar so no change needed there.

Also adds HSTSMiddleware emitting `Strict-Transport-Security:
max-age=31536000; includeSubDomains` when zddc-server is itself
terminating TLS (ZDDC_TLS_CERT != none). Behind an upstream proxy
terminating TLS the proxy is responsible for HSTS, so the middleware
only wraps the chain when useTLS=true.

Test coverage:
  * TLSConfig(none) returns nil + useTLS=false
  * TLSConfig(selfsigned) sets the exact NIST allowlist
  * Negative test asserting weak ciphers (CBC, RC4, 3DES, RSA-key-
    exchange) are NOT in the list — guardrail against regressions

Federal-readiness gap analysis updated: this control is now partially
complete. OCSP stapling and CT-log inclusion remain on the list for
full DoD STIG conformance.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 17:55:52 -05:00
a01315fd00 feat(server): reference Rego, parity test, decision cache, listing ETags
Phase 2 enhancements to the policy decider, plus listing-level ETags
that benefit every deployment regardless of decider mode.

Reference Rego policy
---------------------
internal/policy/rego/access.rego mirrors InternalDecider's semantics
exactly — bottom-up walk, deny-first within a level, default-deny when
HasAnyFile=true, glob matching with @-boundary semantics (special-cased
bare "*" because OPA's glob.match treats empty delimiters
inconsistently for that pattern).

Embedded into the binary via go:embed; --print-rego dumps it to stdout
so federal customers standing up an external OPA can use it as a
parity-tested baseline:

    zddc-server --print-rego > /etc/opa/policies/zddc-access.rego

Parity test runner
------------------
parity_test.go imports the OPA Go module as a TEST-ONLY dependency
(github.com/open-policy-agent/opa@v0.70.0). Every fixture from the
internal Go evaluator's test set runs through both implementations;
any divergence fails CI. The test-only import means production
binaries (built by `go build ./cmd/zddc-server`) stay OPA-free —
release-flag binary size unchanged at ~13 MB.

The parity test caught a real bug on first run: bare "*" patterns
didn't match through OPA's glob.match with empty delimiters. Fixed
in access.rego with a special-case rule. This is exactly the kind of
subtle drift the parity guard exists to catch.

External-mode decision cache
----------------------------
HTTPDecider is now wrapped in a cachingDecider with a default 1s TTL.
Bursty patterns like .archive listings (one OPA round-trip per entry
before, one per (email, decision-input) tuple per TTL window after)
amortize cleanly. Verified: 20 identical /D/ requests produce 1 OPA
hit with cache, 40 hits without (each listing makes 2 ACL queries).

ZDDC_OPA_CACHE_TTL knob (default 1s) lets operators tune. 0 disables.
1s matches the fsnotify watcher debounce window — staleness is
bounded the same way other policy-edit propagation already is.
Internal mode unchanged; the in-process Go evaluator is already
cheaper than a cache lookup would be.

Listing ETags
-------------
GET / (project list) and GET /<dir>/ (directory listing JSON) now
carry content-hash ETag + Cache-Control: private, max-age=0,
must-revalidate. SHA-256 of the rendered JSON, truncated to 16 hex
chars (64 bits — collision risk on a listing of any realistic size
is vanishingly small).

Server-side caching deliberately not added: it would require
mtime-based invalidation, and Azure Files SMB mounts (a common
deployment substrate) don't support fsnotify reliably. The
content-hash ETag delivers the bandwidth savings (304 on identical
fetches) without depending on watcher correctness — the hash is the
actual response, so it can't lie about staleness regardless of
underlying watcher behavior.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 17:46:24 -05:00
e911806eda feat(server): pluggable OPA-compatible policy decider
Add an internal access-decision boundary that all handlers go through
instead of calling zddc.AllowedWithChain directly. Two implementations
ship:

  * InternalDecider — wraps the existing zddc.AllowedWithChain. The
    default. No new dependencies, identical semantics to the legacy
    code path. ZDDC_OPA_URL=internal (or unset).

  * HTTPDecider — POSTs the canonical OPA wire format
    (POST /v1/data/zddc/access/allow with {"input": {...}}, response
    {"result": true|false}) over HTTP, HTTPS, or a Unix-domain socket.
    For federal customers running their own audited Rego policies
    alongside zddc-server. ZDDC_OPA_URL=http(s)://… or unix:///….

External-mode failure semantics: unreachable / non-2xx / malformed
response → fail closed (deny) by default with a WARN log. Operators
who prefer availability over correctness flip with ZDDC_OPA_FAIL_OPEN=1.

The decider is constructed once at startup, plumbed through ACLMiddleware
into the request context. Handlers retrieve it via DeciderFromContext;
non-request callers (fs.ListDirectory, EnumerateProjects, enumerateAccess)
take it as an explicit parameter.

zddc.ZddcFile and zddc.ACLRules gain JSON tags so external Rego authors
get idiomatic input shape (acl.allow, admins, …) instead of Go field
names (ACL.Allow, Admins, …).

Test coverage:
  * InternalDecider parity tests against zddc.AllowedWithChain (every
    documented cascade scenario: empty chain, leaf-allow-wins, leaf-
    deny-beats-parent, leaf-allows-what-parent-denies, deepest-match-
    wins, etc.)
  * HTTPDecider happy-path test (canonical wire format)
  * Fail-closed / fail-open / malformed-response tests

Production binary size unchanged (no new deps; HTTP transport is
stdlib net/http). 11 ACL call sites migrated. End-to-end verified
against the worked-example layout in zddc/README.md.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 17:45:07 -05:00
df1c32ff54 feat(server): HTTP timeouts + audit log default-on with hostname tagging
Two related operational improvements:

1. HTTP timeouts on http.Server (ReadHeaderTimeout 10s, ReadTimeout +
   WriteTimeout 60s, IdleTimeout 120s). Caps slow-client connection
   hold time; closes the slowloris vector. Listing + tool-HTML
   responses complete in milliseconds even with gzip, so 60s is
   generous for legit traffic.

2. --access-log defaults to <ZDDC_ROOT>/.zddc.d/logs/access-<host>.log
   instead of stderr-only. The server auto-creates the parent tree
   (mode 0750), so a fresh deployment gets an audit trail without
   operator setup. Every JSON record carries a `host` field (from
   os.Hostname) — multi-replica deployments share the .zddc.d/logs/
   directory but write to per-host filenames, and downstream
   aggregators can disambiguate via the host field.

   Opt-out: --access-log= (explicit empty). Distinguishing "unset"
   from "set to empty" follows the same pattern config.go already
   uses for --cors-origin.

Live verification:
  $ zddc-server -root /tmp/r -addr 127.0.0.1:8765 -tls-cert none -insecure-direct
  $ curl http://127.0.0.1:8765/
  $ ls /tmp/r/.zddc.d/logs/
  access-bizon.log
  $ tail -1 /tmp/r/.zddc.d/logs/access-bizon.log
  {"time":...,"level":"INFO","msg":"access","host":"bizon",...,"email":"anonymous","method":"GET","path":"/","status":200,...}

  $ zddc-server -root /tmp/r ... -access-log=  # opt-out
  $ ls /tmp/r/.zddc.d/  # empty: no logs/ created
2026-05-04 07:49:17 -05:00
411f49169b feat(server): tee access log to a rotated file for on-disk audit trail
Add --access-log <path> (env ZDDC_ACCESS_LOG). When set, every access-
log record is written as a JSON line to the configured file in
addition to the existing slog.Default() stderr output. Empty (default)
keeps the prior behavior — stderr only.

Rotation via gopkg.in/natefinch/lumberjack.v2:
  100 MB per file, 10 backups, 90-day max age, gzip rotated files.

Operator usage (e.g. behind a Caddy/quadlet stack):
  zddc-server --access-log /srv/.zddc.d/logs/access.log ...

Architecture:
  AccessLogMiddleware now takes an optional *slog.Logger. main.go wires
  it via setupAccessAuditLog() which builds a slog.JSONHandler over a
  lumberjack rotator. Stderr emission stays via slog.Default(); the
  audit logger gets the same fields in line-delimited JSON, the format
  every standard log shipper (Vector, Loki, fluentbit, journalbeat)
  parses natively.

Tests cover the audit logger receiving the same email/path/status
fields as the stderr stream.
2026-05-04 07:49:17 -05:00
50dd8f9bda perf(server): gzip compression middleware on the entire mux
Add github.com/klauspost/compress/gzhttp wrapper around the request
handler. With MinSize(1024), responses ≥ 1 KB get gzip-encoded when
the client advertises Accept-Encoding: gzip; smaller bodies + 304
Not Modified pass through unchanged.

The wrapper auto-appends Vary: Accept-Encoding (compatible with the
existing Vary: Accept on directory.go's content-negotiated path).

Live-tested against zddc-server -root /tmp/empty:
  GET / w/ Accept-Encoding: gzip → 20.9 KB compressed (was 80.9 KB
                                   uncompressed). 74% reduction.
  Decompresses cleanly back to the original bytes.

Helps every code path that bypasses Caddy: devshell pods, local dev
binaries, tests, anywhere zddc-server is hit directly. Production
behind Caddy already had compression at the proxy layer; this just
makes the Go server self-sufficient.

Tests in cmd/zddc-server/main_test.go cover:
- large body + Accept-Encoding → compressed + Vary header
- small body → not compressed (under MinSize)
- no Accept-Encoding header → plain bytes
2026-05-04 07:49:17 -05:00
20897fef6b feat(server): public landing page (root bypasses dir-level ACL)
GET / and GET /index.html previously enforced the root .zddc's
top-level acl: gate before serving the landing page. On a deployment
where only specific emails are allowed at root, anonymous (and
unauthorized) callers got 403 — they couldn't even see the project
picker that would tell them which projects were available to them.

Make the landing page public:
  - cmd/zddc-server: drop the AllowedWithChain gate from the
    apps.Serve("landing") branch; drop it from the IsDir branch when
    urlPath == "/".
  - handler/directory.go: matching bypass for ServeDirectory at the
    root path (covers Accept: application/json and the case where a
    real /index.html exists on disk).

Per-project ACL is preserved end-to-end:
  - fs.ListDirectory continues to filter sub-entries per email, so
    anonymous callers see only projects whose .zddc allows them.
  - Subdirectory requests still hit the ACL gate.

Regression test in handler/directory_test.go covers all four cases
(anonymous public, anonymous filters out private, admin sees both,
anonymous still 403 on private subdir). Full go test ./... passes.
2026-05-04 07:49:17 -05:00
a02a26d3c2 feat: form-data system v0 (sixth tool + zddc-server endpoints)
All checks were successful
Build + deploy releases / build-and-deploy (push) Successful in 8s
Schema-driven form renderer plus zddc-server endpoints that turn any
<name>.form.yaml into a working data-collection form at <path>/<name>.form.html.
Submissions land in <path>/<name>/<YYYY-MM-DD>-<email-sanitized>.yaml,
ACL-gated by the existing .zddc cascade. The form posts back to its own URL;
the server strips ".html" and routes by what's underneath, so create and
update use the same client-side code path.

Form spec dialect: JSON Schema 2020-12 + RJSF-style ui:* hints, written in
YAML. Chosen for LLM authorability — it's the canonical structured-output
target for OpenAI/Anthropic, and the ui:* convention is the most-trained UI
hint vocabulary. Supported subset for v0: type (string/number/integer/boolean/
array/object), enum, min/max, minLength/maxLength, required, additionalProperties:
false, properties, items, format (date, email). Round-trip mode is form-as-truth:
submission YAML is regenerated each save, comments are not preserved (the v1
file-as-truth mode for hand-edited files like .zddc itself is deferred).

New components:
  * form/ — sixth single-file HTML tool, vanilla JS renderer (~760 LoC)
  * zddc/internal/jsonschema/ — focused JSON Schema validator covering only
    the v0 keyword subset. Match-implementation-cost-to-surface-used: a full
    library brings 70%+ surface we don't use; revisit when v1 adds $ref +
    oneOf + if/then/else.
  * zddc/internal/handler/formhandler.go — RecognizeFormRequest / ServeForm,
    capability-URL re-edit, atomic submission writes via the new
    zddc.WriteAtomic helper extracted from writer.go.
  * dispatch() in zddc-server/main.go now intercepts *.form.html and
    *.yaml.html before the static-file path; spec existence is the trigger.

Build pipeline: form joins ZDDC_RELEASE_TOOLS in lockstep, gets its own
embedded copy in handler/form.html (separate from the apps cascade —
the form renderer is fixed, not subject to per-folder version overrides).

Tests: 5 new Playwright specs (form-safety) + 14 new Go tests across the
validator and handler. All 172 Playwright tests + 10 Go packages green.
End-to-end manual verification: GET empty → POST 201 + capability URL →
GET re-edit (pre-filled) → POST update → 200, raw YAML browsable, ACL
deny → 403.

Docs: form/ section added to AGENTS.md and ARCHITECTURE.md. AGENTS.md
also documents the implementation-vs-dependency policy. CLAUDE.md repo-shape
list extended.

Deferred (v1+): .zddc editor migration onto this system, file-as-truth
lossless YAML round-trip, ui:show-when conditional visibility, oneOf/anyOf,
apps-cascade preview hook, cascade-fetched form definitions.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02 20:12:16 -05:00
6cc0d2ae27 feat(zddc-server): /.auth/admin forward_auth endpoint
A machine-only HTTP endpoint that returns 200 if the request's
X-Auth-Request-Email is in the root .zddc admins: list, 403 otherwise.
No body, no redirect — pure authorization decision intended to be
polled by an upstream proxy's forward_auth directive.

The motivating use case is gating /devshell/* (code-server) in the
dev-shell pod on root-admin status before the request ever reaches
code-server, which has no built-in ACL of its own. zddc-server's
own routes keep the existing .zddc cascade ACL and don't go through
this endpoint.

Reuses zddc.IsAdmin (one cached map lookup) so the check is cheap
enough to call on every request. Edits to /srv/.zddc propagate via
the existing fsnotify watcher's policy-cache invalidation.

Tests cover empty email, non-admin, admin, and the bootstrap state
where no root .zddc exists (deny everyone — the safe default).

Docs: zddc/README.md "Forward-auth target for upstream proxies"
section + AGENTS.md notes bullet.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 21:08:39 -05:00
4ede42010a feat(zddc-server): CLI flags, --version, CWD-default ZDDC_ROOT
Adds command-line flags to zddc-server alongside the existing env vars.
Each setting can be set via --<flag-name> or ZDDC_<NAME>; the flag wins
on conflict, the env var wins over the hard-coded default.

  --root          / ZDDC_ROOT          (now defaults to CWD if both unset)
  --addr          / ZDDC_ADDR          (:8443)
  --tls-cert      / ZDDC_TLS_CERT      ("none" / empty / path)
  --tls-key       / ZDDC_TLS_KEY
  --log-level     / ZDDC_LOG_LEVEL     (info)
  --index-path    / ZDDC_INDEX_PATH    (.archive)
  --email-header  / ZDDC_EMAIL_HEADER  (X-Auth-Request-Email)
  --cors-origin   / ZDDC_CORS_ORIGIN   (https://zddc.varasys.io; "" disables)
  --insecure-direct / ZDDC_INSECURE_DIRECT (false)
  --help          (prints flag list to stderr, exits 0)
  --version       (prints binary + embedded tool versions, exits 0)

So an operator can `cd /srv/zddc && zddc-server` with zero config — the
served root defaults to the current directory, and TLS defaults to a
self-signed cert. config.Load now takes []string (test-friendly: nil
skips flag parsing entirely; tests pass an empty slice for env-only
loads).

Adds a `version` package-level var in main.go injected at link time via
`-ldflags="-X main.version=..."`. The build.sh runs git describe against
zddc-server-v* tags; for in-flight commits between releases it produces
e.g. zddc-server-v0.0.7-19-gadb6904-dirty.

Adds an embedded versions manifest:
  - Each tool's compute_build_label (in shared/build-lib.sh) writes a
    sidecar <tool>.label to $BUILD_LABELS_DIR if that env var is set.
  - Top-level build.sh sets BUILD_LABELS_DIR before running each tool's
    build, then assembles zddc/internal/apps/embedded/versions.txt as
    one `<app>=<build label>` line per app.
  - apps.EmbeddedVersions() loads the manifest at runtime.
  - main.go logs a compact summary on every startup; --version dumps
    the full per-app label.

Removes the old cfg.BuildVersion field — the X-ZDDC-Source: embedded
header now uses the package-level main.version directly.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 15:43:31 -05:00
8b6a2dc3e3 feat(zddc-server): apps fetch+cache subsystem with cascade overrides
Adds internal/apps/ package serving the five tool HTMLs at virtual paths
based on the surrounding folder name convention:

  archive      every directory (multi-project, project, archive, vendor)
  classifier   any Incoming/Working/Staging directory and subtree
  mdedit       any Working directory and subtree
  transmittal  any Staging directory and subtree
  landing      only at deployment root

The current-stable build of every tool is //go:embed'd into the binary
at compile time — that's the default with zero config. Operators
override per-directory via .zddc apps: entries; closer-to-leaf wins.

Spec syntax (in any apps: value):

  stable / beta / alpha / :stable          channel
  v0.0.4 / v0.0 / v0 / :v0.0.4              version
  https://my-mirror/releases                URL prefix only
  https://my-mirror/releases:beta           URL prefix + channel
  https://my-fork/archive.html              terminal full URL
  ./local.html / /abs/path.html             terminal local path

The special apps.default key provides a baseline URL prefix and channel
inherited by any app not overridden per-name. Per-axis cascade: a deeper
.zddc can override the URL, the channel, or both.

Cascade walks root→leaf; default applies first at each level, then the
per-app entry. Terminal sources (paths and full .html URLs) short-circuit
composition; deeper non-terminal entries override parent terminals.

URL sources fetch once on first request and cache forever in
<ZDDC_ROOT>/_app/<host>/<path> — different upstreams with the same
filename stay distinct. No background refresh, no SHA-256 verification:
operators delete the cache file to force a refetch. Concurrent misses
for the same source dedupe via a 30-line hand-rolled singleflight.

Per-request override: any user can append ?v=<spec> to a tool URL
(e.g. ?v=beta, ?v=v0.0.4, ?v=:alpha, ?v=https://mirror/releases:beta)
to ask for a different build for one request. Security: ?v= serves
ONLY versions already in the cache (cache miss returns 404; path
sources are rejected outright with 400). Users cannot trigger
arbitrary upstream fetches via crafted URLs.

Failed URL fetches (network down, 5xx) fall back to embedded with a
one-time WARN log. The X-ZDDC-Source response header reports what
served: fetch:URL / cache:URL / path:/abs / embedded:<app>@<build>.

Wire-in (cmd/zddc-server/main.go): dispatch routes <dir>/<app>.html
through apps.MatchAppHTML + AppAvailableAt + apps.Server.Serve when
no real file exists. Direct URL access to /_app/... is blocked at
the dispatch layer — cached files must go through the apps resolver
so they get correct Content-Type and ACL gating.

Schema (internal/zddc/file.go): ZddcFile gains Apps map[string]string
for cascade overrides. Validator (internal/zddc/validate.go) accepts
the special "default" key alongside the five canonical app names and
all spec forms.

Removes ZDDC_APPS_* env vars (no admin UI, no refresh interval, no
upstream allow-list — the simpler model has fewer knobs).

40+ unit tests across the new package: parser shapes, cascade
resolution with default+per-app interactions, terminal short-circuit
semantics, ?v= cache-only enforcement, embedded fallback, atomic
cache writes, singleflight dedup. Plus end-to-end dispatch tests in
cmd/zddc-server/main_test.go.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 15:25:25 -05:00
fedc3650b5 fix(zddc-server): access log was always email=anonymous (middleware ordering)
The middleware chain in main.go was:

  AccessLogMiddleware ( CORSMiddleware ( ACLMiddleware ( dispatch ) ) )

ACLMiddleware extracts the user email from the configured header and
stores it in the request context via r.WithContext. But Go's context
propagates DOWN the chain (to handlers further in) — not back UP. The
new context-bearing request only exists inside the call to
next.ServeHTTP; once that returns, the outer middleware still has the
ORIGINAL request without the email. So AccessLogMiddleware's
EmailFromContext(r) call (which runs after next.ServeHTTP returns to
log the request) read from the original context and got an empty
string, falling through to "anonymous".

The /.profile/ page worked correctly because it reads the email
directly inside the handler — at that depth the context-bearing
request is the one in scope.

Fix: invert the chain so ACL is OUTERMOST.

  ACLMiddleware ( AccessLogMiddleware ( CORSMiddleware ( dispatch ) ) )

Now ACL extracts the email and the new request flows down through
AccessLog (which sees the email-bearing context), CORS, and dispatch.

Add three regression tests in middleware_test.go:

  TestAccessLogReadsEmailFromACLContext
    The fix: with ACL outer, AccessLog logs email=alice@example.com
    when X-Auth-Request-Email is set.

  TestAccessLogAnonymousWhenNoEmail
    The unchanged path: no header → email=anonymous (correct fallback).

  TestAccessLogOuterDoesNotSeeInnerContext
    Locks down Go's actual context-propagation behavior. Builds the
    INVERTED (buggy) chain and asserts that AccessLog (outer) does NOT
    see the email ACL (inner) set. If this ever fails, Go's context
    propagation has changed in a way that lets inner-set context flow
    upward — which would mean the reordering fix could be reverted.

All zddc-server tests pass via `go test ./...` (run in podman against
golang:1.24-alpine since this dev host doesn't have Go installed).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 12:46:49 -05:00
cb46c2ef8c feat(zddc-server): user profile page replaces /.admin/
Replaces the super-admin-only /.admin/ surface with a public-by-default
/.profile/ page that layers admin tools server-side based on the
caller's effective access:

- Universal (everyone, anonymous included): identity card, effective
  access summary, theme picker, localStorage utilities (export / import
  / clear, landing-presets viewer).
- Subtree admins additionally see: editable .zddc files list (linking
  to the existing form-based editor) and a "Create new project folder"
  form.
- Super-admins additionally see: server config, log viewer, whoami
  headers (the old /.admin/ JSON endpoints, repointed under /.profile/).

Project creation is gated on CanEditZddc(newDir) — the same strict-
ancestor rule that already governs .zddc writes — so no new authority
concept is introduced. ValidateProjectName mirrors the existing
reserved-prefix policy (no leading '.' or '_', no path separators).

/.admin/* is hard-cut: no redirect shim. Old URLs fall through to the
existing dot-prefix guard and 404. Custom CSS file rename: prefer
<root>/.profile.css, fall back to legacy <root>/.admin.css.

Per-resource 404 leakage gates preserved on whoami / config / logs /
zddc / projects so non-admin callers cannot detect the existence of
admin-only sub-resources.

Tree-wide gofmt -w applied as a side-effect.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-29 16:32:02 -05:00
9ef90800b1 feat(zddc-server): admin debug page + X-Auth-Request-Email default + hidden-segment guard
Three improvements bundled because they all ship as zddc-server v0.0.2:

* /.admin/ debug dashboard with /whoami, /config, /logs sub-routes.
  Authorization via a top-level `admins:` glob list in <ZDDC_ROOT>/.zddc
  (root-only — subdir entries deliberately ignored to prevent privilege
  escalation via subtree write access). Non-admin requests get 404 so the
  page is invisible. Recent logs surface via a 500-entry slog ring buffer
  teed off the existing TextHandler. Lets operators debug without
  kubectl exec.

* Default ZDDC_EMAIL_HEADER changes from `X-Email` to
  `X-Auth-Request-Email` — the oauth2-proxy / nginx auth-request
  convention that the TND helm chart already sets explicitly.
  Operators who set the env var explicitly are unaffected; deployments
  relying on the previous default need to set ZDDC_EMAIL_HEADER=X-Email
  or update their proxy.

* dispatch() rejects any URL whose segments contain a dot prefix other
  than the recognized virtual prefixes (.admin, cfg.IndexPath /
  .archive). Matches the existing listing-pipeline filter so hidden
  subtrees on the served PVC (e.g. /srv/.devshell — used by the
  in-cluster dev-shell for persistent home-dir state) become
  unreachable via direct HTTP fetch, not just hidden in listings.

Refreshes the X-Email reference in website/index.html accordingly.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-28 14:02:06 -05:00
ea385b5366 Initial commit
ZDDC — Zero Day Document Control. A file-naming convention plus five
single-file HTML tools (archive, transmittal, classifier, mdedit,
landing) and an optional Go HTTP server (zddc-server) with ACL and a
virtual archive index. Self-contained, offline-capable, dependency-free.

See README.md for an overview, AGENTS.md and ARCHITECTURE.md for the
build/release/architecture detail, bootstrap/README.md for the
two-level deployment install pattern, and zddc/README.md for the
HTTP server.
2026-04-27 11:05:47 -05:00