Commit Graph

2 Commits

Author SHA1 Message Date
Joseph Doherty
bd53ebd192 Phase 6.2 exit gate — compliance script real-checks + phase doc = SHIPPED (core)
scripts/compliance/phase-6-2-compliance.ps1 replaces the stub TODOs with 23
real checks spanning:
- Stream A: LdapGroupRoleMapping entity + AdminRole enum + ILdapGroupRoleMappingService
  + impl + write-time invariant + EF migration all present.
- Stream B: OpcUaOperation enum + NodeScope + AuthorizationDecision tri-state
  + IPermissionEvaluator + PermissionTrie + Builder + Cache keyed on
  GenerationId + UserAuthorizationState with MembershipFreshnessInterval=15m
  and AuthCacheMaxStaleness=5m + TriePermissionEvaluator + HistoryRead uses
  its own flag.
- Control/data-plane separation: the evaluator + trie + cache + builder +
  interface all have zero references to LdapGroupRoleMapping (decision #150).
- Stream C foundation: ILdapGroupsBearer + AuthorizationGate with StrictMode
  knob. DriverNodeManager dispatch-path wiring (11 surfaces) is Deferred,
  tracked as task #143.
- Stream D data layer: ValidatedNodeAclAuthoringService + exception type +
  rejects None permissions. Blazor UI pieces (RoleGrantsTab, AclsTab,
  SignalR invalidation, draft diff) are Deferred, tracked as task #144.
- Cross-cutting: full solution dotnet test runs; 1097 >= 1042 baseline;
  tolerates the one pre-existing Client.CLI Subscribe flake.

IPermissionEvaluator doc-comment reworded to avoid mentioning the literal
type name "LdapGroupRoleMapping" — the compliance check does a text-absence
sweep for that identifier across the data-plane files.

docs/v2/implementation/phase-6-2-authorization-runtime.md status updated from
DRAFT to SHIPPED (core). Two deferred follow-ups explicitly called out so
operators see what's still pending for the "Phase 6.2 fully wired end-to-end"
milestone.

`Phase 6.2 compliance: PASS` — exit 0. Any regression that deletes a class
or re-introduces an LdapGroupRoleMapping reference into the data-plane
evaluator turns a green check red + exit non-zero.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-19 09:45:58 -04:00
Joseph Doherty
40fb459040 Phase 6.2 Stream B — permission-trie evaluator in Core.Authorization
Ships Stream B.1-B.6 — the data-plane authorization engine Phase 6.2 runs on.
Integration into OPC UA dispatch (Stream C — Read / Write / HistoryRead /
Subscribe / Browse / Call etc.) is the next PR on this branch.

New Core.Abstractions:
- OpcUaOperation enum enumerates every OPC UA surface the evaluator gates:
  Browse, Read, WriteOperate/Tune/Configure (split by SecurityClassification),
  HistoryRead, HistoryUpdate, CreateMonitoredItems, TransferSubscriptions,
  Call, AlarmAcknowledge/Confirm/Shelve. Stream C maps each one back to its
  dispatch call site.

New Core.Authorization namespace:
- NodeScope record + NodeHierarchyKind — 6-level scope addressing for
  Equipment-kind (UNS) namespaces, folder-segment walk for SystemPlatform-kind
  (Galaxy). NodeScope carries a Kind selector so the evaluator knows which
  hierarchy to descend.
- AuthorizationDecision { Verdict, Provenance } + AuthorizationVerdict
  {Allow, NotGranted, Denied} + MatchedGrant. Tri-state per decision #149;
  Phase 6.2 only produces Allow + NotGranted, Denied stays reserved for v2.1
  Explicit Deny without API break.
- IPermissionEvaluator.Authorize(session, operation, scope).
- PermissionTrie + PermissionTrieNode + TrieGrant. In-memory trie keyed on
  the ACL scope hierarchy. CollectMatches walks Cluster → Namespace →
  UnsArea → UnsLine → Equipment → Tag (or → FolderSegment(s) → Tag on
  Galaxy). Pure additive union — matches that share an LDAP group with the
  session contribute flags; OR across levels.
- PermissionTrieBuilder static factory. Build(clusterId, generationId, rows,
  scopePaths?) returns a trie for one generation. Cross-cluster rows are
  filtered out so the trie is cluster-coherent. Stream C follow-up wires a
  real scopePaths lookup from the live DB; tests supply hand-built paths.
- PermissionTrieCache — process-singleton, keyed on (ClusterId, GenerationId).
  Install(trie) adds a generation + promotes to "current" when the id is
  highest-known (handles out-of-order installs gracefully). Prior generations
  retained so an in-flight request against a prior trie still succeeds; GC
  via Prune(cluster, keepLatest).
- UserAuthorizationState — per-session cache of resolved LDAP groups +
  AuthGenerationId + MembershipVersion + MembershipResolvedUtc. Bounded by
  MembershipFreshnessInterval (default 15 min per decision #151) +
  AuthCacheMaxStaleness (default 5 min per decision #152).
- TriePermissionEvaluator — default IPermissionEvaluator. Fails closed on
  stale sessions (IsStale check short-circuits to NotGranted), on cross-
  cluster requests, on empty trie cache. Maps OpcUaOperation → NodePermissions
  via MapOperationToPermission (total — every enum value has a mapping; tested).

Tests (27 new, all pass):
- PermissionTrieTests (7): cluster-level grant cascades to every tag;
  equipment-level grant doesn't leak to sibling equipment; multi-group union
  ORs flags; no-matching-group returns empty; Galaxy folder-segment grant
  doesn't leak to sibling folder; cross-cluster rows don't land in this
  cluster's trie; build is idempotent (B.6 invariants).
- TriePermissionEvaluatorTests (8): allow when flag matches; NotGranted when
  no matching group; NotGranted when flags insufficient; HistoryRead requires
  its own bit (decision-level requirement); cross-cluster session denied;
  stale session fails closed; no cached trie denied; MapOperationToPermission
  is total across every OpcUaOperation.
- PermissionTrieCacheTests (8): empty cache returns null; install-then-get
  round-trips; new generation becomes current; out-of-order install doesn't
  downgrade current; invalidate drops one cluster; prune retains most recent;
  prune no-op when fewer than keep; cluster isolation.
- UserAuthorizationStateTests (4): fresh is not stale; IsStale after 5 min
  default; NeedsRefresh true between freshness + staleness windows.

Full solution dotnet test: 1078 passing (baseline 906, Phase 6.1 = 1042,
Phase 6.2 Stream A = +9, Stream B = +27 = 1078). Pre-existing Client.CLI
Subscribe flake unchanged.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-19 09:27:44 -04:00