Three coordinated changes that share the same files. Common theme:
convention beats exception. Where the codebase had a bespoke wire shape
or a special-case route, replace it with the generic shape every other
client already speaks.
== Listing protocol ==
GET / Accept: application/json used to dispatch to a bespoke
ServeProjectList handler returning {name, url, title} per project — a
shape that diverged from every other directory's listing.FileInfo
response. Now:
- listing.FileInfo gains an optional `title` field (read from each
directory's own .zddc title:). Generic clients (landing, browse)
read the same shape from every URL.
- appfs.ListDirectory emits a virtual `.zddc` entry (is_dir:false,
virtual:true) when no on-disk file exists at that path and the
caller asked for ?hidden=1. Opens an editable view of the cascade
defaults; PUT-saving its bytes materialises a real file.
- The bespoke GET / JSON branch in cmd/zddc-server/main.go is gone.
The bare-root landing serve is Accept-gated: HTML requests get the
landing tool (project picker), JSON requests fall through to
ServeDirectory and get the generic listing.
- landing's fetchProjects filters the new generic shape (is_dir,
strip trailing slash) — same pattern fetchParties already used at
/<project>/archive/.
== Form editor retirement ==
`<dir>/.zddc.html` was a server-rendered form for editing per-directory
.zddc files (~900 LOC across zddceditor.go, zddchandler.go, zddc_assets.go).
Browse's YAML/CodeMirror editor (with .zddc-schema lint) already edits
the same files via the generic file-API. Two ways to edit the same data
is exception, not convention.
- Delete zddceditor.go, zddchandler.go, zddc_assets.go and tests.
- `/<dir>/.zddc.html` → 302 redirect to `/<dir>/?file=.zddc` (browse
opens the .zddc in its editor pane).
- /.profile/zddc/* namespace deleted (REST API + assets sub-route).
- Profile page's "Editable .zddc files" list links to browse.
- ServeZddcFile's 405 message + virtual-body comment point at the
browse URL instead of the dead form.
== Admin elevation (Principal model) ==
Sudo-style: admins are treated as normal users by default; opting into
admin powers is per-request and gated by a `zddc-elevate=1` cookie.
- zddc.Principal{Email, Elevated} replaces bare-email arguments on
IsAdmin / IsSubtreeAdmin / CanEditZddc. The signature change makes
the elevation gate compiler-enforced at every admin call site —
audit-fragility is gone. The empty-email short-circuit is no longer
load-bearing for elevation; Principal.gate() is the explicit check.
- handler.ACLMiddleware derives Elevated per request: bearer tokens
are implicitly elevated (CLI clients can't toggle a cookie); browser
sessions elevate only when zddc-elevate=1 is set. PrincipalFromContext(r)
is the one-call-per-site bundling helper.
- Every admin-check call site updated to pass a Principal.
- /.auth/admin (forward_auth target for the dev-shell IDE) explicitly
bypasses elevation with a synthetic-elevated Principal — different
cookie scope than zddc-server origin, documented inline.
- AccessView gains CanElevate (elevation-independent "does this email
have admin authority anywhere?") so the header toggle can render
itself for an un-elevated admin who hasn't opted in yet.
- ServeProjectList is removed; ProjectInfo + EnumerateProjects stay
for the profile page's server-rendered project list.
- MatchAppHTML stays — still used by main.go to route <dir>/<tool>.html
URLs to the apps subsystem when no real file exists.
- Test helpers carry Elevated=true by default (matches the
pre-elevation default; tests for the un-elevated gate use the
explicit form).
Go tests pass across all 14 internal packages. Browse + every other
tool rebuilds clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The cascade tracer's JSON response now carries:
- Top-level `cascade_mode` (string): the active mode (delegated /
strict). Helps reviewers correlate the visible_start with the mode.
- Top-level `chain.visible_start` (int): chain.VisibleStart(leaf, mode)
— the lowest level whose grants the leaf can see, accounting for any
inherit:false fence in delegated mode (always 0 in strict mode).
- Per-level `inherit` (*bool, omitempty): the level's explicit inherit
value, nil when absent. A reviewer can scan the levels and see which
one fences ancestors.
The level's `exists` flag now also fires for `permissions:` and
`inherit:` entries (previously it only checked Allow/Deny/Admins),
so the response correctly reflects modern .zddc files that use the
permissions map.
Test: TestServeProfileEffectivePolicy_InheritFence builds a vendor-
folder layout, asks the tracer about a my-company user, confirms
decision=false, visible_start=1 (fence at /Vendor/), leaf.Inherit=
&false, root.Inherit=nil.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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>
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>
Eliminates the manual cascade-trace ritual when debugging "why can't
alice see /Project-X" reports. New endpoint returns the resolved
policy chain plus the active decider's verdict in JSON:
GET /.profile/effective-policy?path=/Project-X/sub/&email=alice@…
Response shape:
{
"path": "/Project-X/sub/",
"email": "alice@…",
"decision": true,
"decider_kind": "*policy.InternalDecider",
"chain": {
"has_any_file": true,
"levels": [
{"index": 0, "zddc_path": "/.zddc", "exists": true,
"acl": {...}, "admins": [...],
"matches_email": false, "decision_at_level": "no_match"},
{"index": 1, "zddc_path": "/Project-X/.zddc", "exists": true,
"acl": {...}, "matches_email": true, "decision_at_level": "allow"}
]
}
}
Per-level email matching reuses the same MatchesPattern code the live
evaluator uses, so the trace can never disagree with the actual
verdict — and when ZDDC_OPA_URL points at an external OPA, the
decision goes through that OPA, making the endpoint a useful smoke
test for OPA wiring too.
Admin-only via the existing /.profile gate (404 to non-admins).
Required params; 400 if either is missing or path doesn't escape ROOT.
Test coverage:
* TestServeProfileGateMatrix: anonymous → 404, non-admin → 404,
admin without params → 400 (gate cleared, validator rejected)
* TestServeProfileEffectivePolicy: full payload-shape assertion
against a worked-example fixture (closed project where alice is
allow-listed but bob is not)
Also fixes pre-existing doc drift: README's "Admin Debug Page"
section referenced /.admin/whoami|config|logs but the actual code
mounts /.profile/* (the rename predates this PR; the doc was stale).
Closes the "/.admin/effective-policy debug endpoint" item from the
federal-readiness future-work list.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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>
Four entangled change-sets from one session, committed together because
their file-level overlap (build.sh, docs, embedded/, watcher.go, …) makes
post-hoc separation noisy:
* fix(archive): nested-party + folder-type cascade
transmittalIsUnderVisibleParty short-circuited on the first matched
party segment, only checking the immediately-next segment for a
folder-type marker. Paths like BM/sub/Issued/<txn> bypassed the Issued
toggle entirely. Replaced with isUnderHiddenFolderType (full-path) +
any-segment party match. Eight new Playwright cases pin the contract
in tests/archive-cascade.spec.js.
* refactor(zddc-server): scope .archive index by project
archive.Index now buckets by top-level segment
(.ByProject[<project>].ByTracking[<tracking>]). Resolve and AllEntries
take a project parameter; handler extracts it from contextPath's first
segment. /.archive/ at root returns 404 — stable refs must be
project-rooted. Within-project (tracking, rev) collisions emit a WARN
with both paths. Cross-project tracking-number duplicates no longer
collide.
* perf(zddc-server): lazy-load expensive bits of the profile page
serveProfilePage now ships a minimal shell: Email, EmailHeader,
IsSuperAdmin (root .zddc only). Visible projects + admin subtrees +
editable scaffolds populate client-side via /.profile/access. Subtree-
admin scaffolds live in <template id="tmpl-subtree-admin">; pure
non-admins receive no live admin form. ScanZddcFiles now memoized,
invalidated on .zddc events by the watcher and writer helpers.
* feat: lockstep release + redesigned releases page
sh build.sh --release [version|alpha|beta] is the canonical lockstep
cut: every tool (5 HTML + zddc-server) bumps to the same coordinated
version. zddc-server binaries now committed under website/releases/
with the same cascade chain as HTML tools (no more Codeberg release-
asset publication). zddc/release.sh deprecated (kept as a guard);
shared/publish-codeberg-release.sh removed.
Releases page redesigned as an action-first install guide: hero +
version dropdown that rewires every download link, channel chips for
always-visible alpha/beta access (state-aware labels: "tracks stable"
vs "active dev"), Path A (zddc-server with platform auto-detect from
UA), Path B (5 standalone tool HTMLs), version-pinning empowerment
narrative (drop-a-copy vs .zddc apps: cascade), channels explainer.
Channel-link verifier asserts every <tool>_{stable,beta,alpha}.html
resolves at the end of every build. Bootstrap-friendly: zddc-server
artifact checks skip until the first lockstep cut anchors the chain.
Tests: 167 Playwright + all Go packages green.
Docs: CLAUDE.md, AGENTS.md, ARCHITECTURE.md, zddc/README.md updated.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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>
