Add GET /<path>/.zddc?effective=1 returning JSON with the composed
ZddcFile across the full cascade plus a per-level source list. The
.zddc file itself still serves only what's defined at that level
(YAML, the source of truth); the new query is inspection-only
(JSON, never written back). The virtual .zddc body's header
comment already pointed at this URL — now it's live.
Wire shape:
{ url_path: "/Project-1/archive/Acme/working/",
merged: { …ZddcFile JSON, composed view… },
sources: [ { level: -1, url: "<embedded>",
contributed: ["roles", "available_tools", "paths"] },
{ level: 0, url: "/.zddc",
contributed: ["acl", "admins"] },
{ level: 4, url: "/Project-1/archive/Acme/working/.zddc",
contributed: ["default_tool", "auto_own", …] } ] }
New zddc.EffectiveZddc(chain) walks chain.Embedded then
chain.Levels[VisibleStart..leaf] through mergeOverlay, and folds the
cross-level Roles union (via the existing lookupRoleMembers,
matching the runtime ACL evaluator's semantics). Returns
([]SourceEntry) listing each contributing level with its non-zero
top-level fields. The handler maps SourceEntry.Level to a directory
URL: -1 → "<embedded>"; 0..n → "/<seg/seg/.../>.zddc".
ACL gate is the same as the YAML view (read on the directory).
X-ZDDC-Source: virtual:effective so clients can distinguish.
Four tests cover the contract:
- BasicCompose: alice's root grant + project_team baseline from
embedded + the project's title all surface in merged; sources
include -1 (embedded), 0 (root), 1 (project).
- InheritFence: top-level inherit:false on /Closed/.zddc drops
every ancestor including the embedded baseline from sources.
- RoleMemberUnion: document_controller declared at root and
project unions members in merged.roles (matches the runtime
cross-level union the ACL evaluator performs).
- existing virtual-body tests still pass — they hit the YAML path,
not the JSON branch.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
When no .zddc is on disk at the requested directory, ServeZddcFile
now renders the cascade's leaf-level ZddcFile as YAML — what
defaults.zddc.yaml's paths: tree declares for THIS exact path,
threaded through by the walker. The previous body was a comment-
only summary plus a `{}` placeholder, which forced operators to
write any override from scratch.
The .zddc file is still the single source of truth — no synthesis,
no merge: the virtual body IS the embedded subtree, marshalled in
the same shape the operator would write themselves. PUT-saving the
bytes back through the file API materialises an on-disk override
carrying exactly what the user saved. For the COMPOSED view across
the full chain, slice 2 will add ?effective=1 (returns JSON, not a
.zddc); the header comment in the virtual body points at it.
Three new test cases lock the contract:
- VirtualDefault: at /Project/.zddc with no on-disk file, the
embedded paths.* contribution surfaces (project_team: r,
observer: r, archive subtree, …).
- VirtualEmpty: at a path the embedded defaults don't declare
(e.g. /Project/random-subfolder/.zddc), the body collapses to
the header + an empty-document {} placeholder + an explanation
that rules come from ancestors only.
- VirtualPerPartyWorking: at /Project/archive/Acme/working/.zddc,
the body carries default_tool/auto_own/drop_target and the
classifier in available_tools — the per-party in-flight slot's
full declaration.
Drive-by: add `omitempty` to ZddcFile.ACL, .Admins, .Title yaml
tags. Without it, the marshaled virtual body carried `acl: {}`,
`admins: []`, and `title: ""` at every nested level, drowning the
real content in noise. ParseFile is unaffected (input parsing
ignores omitempty); WriteFile's round-trip sanity check still
passes.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Single audit pass that removes pre-release back-compat, consolidates the
admin-policy decider, and fixes the .zddc write path.
Field removal — acl.allow / acl.deny:
- Drop ACLRules.Allow / Deny struct fields and mergeLegacyACL().
- Remove walker / lookups / validate / decider branches that read them.
- Migrate every test fixture (YAML strings and ACLRules struct literals)
to acl.permissions: { principal → verb-set }.
- Rewrite both bundled Rego policies (access.rego, access_federal.rego)
to traverse level.acl.permissions; rewrite parity-test helpers.
- Update create-project form (profile page) to collect permissions
instead of allow/deny lists.
Admin decider consolidation:
- Delete zddc.CanEditZddc — strict-ancestor rule retired. Subtree admins
own their own .zddc; the policy decider's IsActiveAdmin short-circuit
is the single bypass site.
- Migrate tablehandler.ServeTable to AllowActionFromChainP — closes the
same Forbidden bug already fixed for /browse.html.
- Drop AccessView.EditableParentChoices and treeEntry.CanEdit (always
true after the retirement). Profile page renders AdminSubtrees
directly for both lists.
- Drop the excludeLeaf parameter from AdminLevelInChain /
IsAdminForChain — no production caller passed true.
Dead code removed:
- policy.AllowWriteFromChain (zero production callers, zero tests).
- zddc.AllowedWithChain (zero production callers; tests deleted).
ModeStrict retirement — federal posture is OPA-only:
- Delete cascade_mode.go / cascade_mode_test.go and the ModeStrict
branches in cascade.go and acl.go.
- Drop --cascade-mode flag, CascadeMode config field, and the
InternalDecider.Mode field.
- Drop the mode parameter from every cascade helper:
GrantedVerbsAtLevel, AllowedAction, EffectiveVerbs,
EffectiveVerbsRange, RoleMembers, MatchesPrincipal,
MatchingPrincipals, WormZoneGrant, PolicyChain.VisibleStart.
- Strip cascade_mode from /.profile/config and
/.profile/effective-policy responses.
- Refresh README / ARCHITECTURE.md to describe federal posture as
"deploy OPA with access_federal.rego" (NIST AC-6); the bundled Rego
is the parent-deny-is-absolute variant. The in-process Go evaluator
implements only the commercial cascade.
Legacy redirects + .admin.css fallback:
- Drop /<dir>/.zddc.html → ?file=.zddc redirect and its test.
- Drop ?zip=1 retired comment + legacy test (handled by the
.zip virtual-URL path; covered by TestServeSubtreeZip).
- Drop .admin.css fallback in profile_assets.go — only .profile.css now.
- Refresh stale "retired" / "back-compat" / "legacy" comment markers.
.zddc write path fix:
- Dispatcher: route only GET/HEAD on .zddc URLs to ServeZddcFile; carve
.zddc out of the dot-prefix guard so PUT/DELETE/POST reach
ServeFileAPI. Before this, .zddc writes 405'd at ServeZddcFile and
the YAML editor's save flow had no live path.
- ServeFileAPI.resolveTargetPath: same .zddc-leaf carve-out so the file
API accepts the path; intermediate dot dirs (.zddc.d/) stay reserved.
- Listing: compute Writable per-file with ActionAdmin for .zddc
(matches the file API's gate) instead of ActionWrite for everything.
- Virtual .zddc placeholder: compute Writable via the same
parentActiveAdmin || ActionAdmin path. Was always false before.
- browse YAML editor canSave: exempt virtual .zddc — the synthetic
body is designed to materialize on PUT.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Two related routing fixes:
1. /<project>/archive/<party>/mdl[/] now follows the slash/no-slash
convention uniformly with the rest of the system:
- mdl (no slash) → tables app (default tool for mdl/)
- mdl/ (slash) → browse (ServeDirectory empty-listing fallback)
Previously the slash form auto-redirected to mdl/table.html, which
forced the user into the table view from any party-folder click and
produced a confusing "Unrecognized table URL" error when the
redirect race-conditioned. tableRowsRedirect now only redirects
when a real on-disk table.yaml exists; the default-MDL virtual case
stays in browse via the convention.
New zddc.IsArchivePartyMdlDir helper recognises the canonical
<project>/archive/<party>/mdl pattern at depth 4 (relative path).
fs.ListDirectory uses it to return [] for the missing-on-disk case
so browse renders the empty workspace cleanly. Test updated
(TestServeDirectoryRedirectsDefaultMdl → TestServeDirectoryDefaultMdlNoRedirect).
2. <dir>/.zddc URLs now work at every directory depth.
The dispatcher previously 404'd anything beginning with a dot
(except /.archive and /<dir>/.zddc.html). New IsZddcFileRequest +
ServeZddcFile handlers carve out the raw .zddc leaf so an operator
can navigate to /Project-1/archive/PartyA/mdl/.zddc and inspect
the rules effective at that depth.
Semantics:
- Method: GET / HEAD only. Writes go through the existing admin-
gated form at <dir>/.zddc.html (unchanged).
- ACL: parent directory's read permission gates access; 404
(not 403) is returned to non-readers so existence isn't leaked.
- On disk: file bytes served verbatim with
Content-Type: application/yaml and X-ZDDC-Source: file:<rel>.
- Virtual: when no file exists at this level, a synthetic
placeholder body is returned with a YAML-comment cascade
summary so the reader sees exactly what rules apply here from
ancestors. X-ZDDC-Source: virtual:zddc distinguishes it.
The virtual body parses as valid YAML (`{}` after the comments) so
downstream tooling that consumes the URL isn't confused.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
