Commit Graph

708 Commits

Author SHA1 Message Date
Joseph Doherty b61fe38823 fix(focas): browse-committed fixed-tree tags are readable (Gitea #540)
Authoring FOCAS tags through /raw -> Browse device... produced tags the driver
could never read. Every committed tag read BadNodeIdUnknown forever, and the
failure was silent end to end: the AdminUI accepted it, the deploy gate sealed
green, and the driver reported Healthy with 0 errors while ignoring the tags.
Net effect: the whole fixed-tree surface could not be published through any v3
authoring path. Found cutting wonder-app-vd03 over to v3 against a real Makino
Pro 5 / Fanuc 30i, where 0 of 20 committed tags read while two hand-authored
MACRO: tags on the same device read Good.

A captured browse leaf's id IS its DriverAttributeInfo.FullName, and the fixed
tree emitted "{deviceHost}/{path}" there -- an internal cache key, not an
address. Both authoring paths wrote it verbatim into TagConfig.address, and
FocasAddress.TryParse accepts no such form, so the driver skipped the tags at
init.

Fixed at the emitter rather than by stripping the host at commit, which fixes
the browse-commit flow and the manual picker's tree-select together and leaves
one canonical address form:

- FocasAddress gains a fourth kind, FIXED:<path>, and moves to Contracts so the
  AdminUI and ControlPlane can parse without referencing the runtime driver
  (#526). A FIXED: read is served from the fixed-tree snapshot the poll loop
  already maintains -- no area read, no connection. Writes refuse: nothing in
  that tree is a writable location on the CNC.
- The address carries no device. A tag's device comes from its Device row, and
  a second routing channel for one fact is what created this defect.
- An authored FIXED: tag arms the fixed-tree poll loop by itself. Enabled
  defaults false and the browser force-enables it only for a browse, so the
  operator would otherwise browse, commit, deploy, and land on a driver whose
  loop never starts -- every tag Bad with a correct address.
- Fixed-tree values are now dated from the last answered poll and go
  BadCommunicationError once it is stale (8 cadences, floored at 30s). The poll
  loop swallows a failed tick by design, so a dead CNC would otherwise serve its
  last snapshot as Good indefinitely -- harmless while nothing could bind to the
  tree, not harmless now.

Guardrails, so this class cannot recur silently:

- FocasTagConfigModel.Validate() runs the real parser instead of a non-empty
  check, and FocasTagDefinitionFactory.Inspect() warns at the deploy gate, which
  covers CSV/API config that never touches the modal.
- The manual picker offered axis/spindle/program/status "parameter groups" --
  none of which is a FOCAS addressing space -- and its own default value,
  axis:5, was unusable. It now composes PMC / PARAM: / MACRO: through
  FocasAddress, so what it emits is parseable by construction.

Tests assert addresses ROUND-TRIP through the parser rather than matching an
expected string: the previous FocasAddressBuilderTests pinned "axis:5" exactly,
which is how a green suite coexisted with a picker nobody could use. Verified
red-first against the old emitter. FOCAS 308, AdminUI 1095, ControlPlane 169,
Core 581 -- all pass, 0 warnings.

The remaining half of #540 -- a driver reporting Healthy/0 errors while
skipping tags at init -- is fleet-wide (eight drivers do this) and is filed
separately rather than patched per-driver.
2026-08-05 17:32:18 -04:00
Joseph Doherty 08c1728a98 feat(sql-adminui): Postgres + Oracle in the provider dropdown; docs 2026-08-05 06:13:36 -04:00
Joseph Doherty 2c19a50bf9 fix(raw): a superseded manual-entry open can no longer feed the pickers another device's config 2026-08-05 03:38:25 -04:00
Joseph Doherty 4e3a6e8497 fix(raw): a stale open can no longer feed the picker another device's config 2026-08-05 03:36:04 -04:00
Joseph Doherty c1c21f3ff8 test(raw): pin the manual-entry accessor as live, not a captured snapshot 2026-08-05 03:33:13 -04:00
Joseph Doherty a2093b4400 fix(raw): manual tag entry feeds each row's picker the merged device config (#468 follow-up) 2026-08-05 03:25:13 -04:00
Joseph Doherty abb9f8a1cb fix(raw): tag edit modal feeds the picker the merged device config, not '{}' (#468 follow-up) 2026-08-05 03:25:13 -04:00
Joseph Doherty e698aee401 test(raw): FakeRawTreeService for raw-modal component tests 2026-08-05 03:21:23 -04:00
Joseph Doherty e7fbe97759 fix(historian): gate historization capture on the Primary, quarantine a poison tag (#537, #538)
Both defects were found by #491's live gate against a real HistorianGateway and filed rather than
fixed at the time, because each one's fix is a design decision rather than a patch.

#537 — both nodes of a redundant pair captured every value, so the historian received duplicate
live samples for every historized tag (measured: the gateway's write counter advanced twice per
value and halved when one central was stopped).

The recorder now reads a capture gate per value, fed from the new
PrimaryGatePolicy.ShouldRecordHistorizedValues through IHistorizationRoleView — a third verdict on
the same RedundancyRoleView object, registered unconditionally on driver nodes rather than
alongside the alarm section's IRedundancyRoleView (which only exists when that section is enabled;
piggybacking is the #511 registration accident).

Two things are deliberate and easy to get backwards:

  * It gates the CAPTURE, not the drain — the opposite of the alarm sink. That queue is in LocalDb
    and replicates, so the Secondary already holds the Primary's rows. The historization outbox is
    a node-local FasterLog replicating to nobody, so a drain-only gate would leave the standby
    appending forever to a queue no one empties: unbounded disk, then a flood of stale duplicates
    the moment it is promoted. Entries a node already captured are still drained by that node.

  * The peer it stands down for must RECORD THE SAME REFS, not merely hold the same rows — a
    Primary in this node's own per-cluster mesh. A node carrying no cluster-scoped role cannot
    establish that and never stands down: under a fleet-wide election the elected Primary is
    usually running a different cluster's configuration, and deferring to it would end this
    cluster's historization silently, with the drain reporting success on an empty outbox forever.
    That is the scope mismatch that once suspended the alarm drain on every node of the rig.

An unknown role captures, matching the alarm drain — a duplicate sample is recoverable, a hole in
the trend is not.

#538 — the drain writes every per-tag group and then acks all-or-nothing (deliberate: RemoveAsync
truncates THROUGH an id, so partial acking could drop older unwritten entries). One permanently
failing tag therefore pinned the FIFO head while every healthy tag in the batch was re-submitted
to the historian on every pass, indefinitely — duplicate samples and an outbox that never
truncated, observed live at 8.3 MB from a single unprovisionable tag.

The drain now tracks consecutive failures per historian tag and abandons that tag's entries once
it exceeds MaxWriteAttempts (new, default 5), so the head advances. The counter only advances on a
pass where some OTHER tag wrote successfully: that is what separates "this tag is poison" from
"the backend is down". A count-only quarantine looks identical on the poison-tag case and silently
discards the whole backlog during an ordinary gateway restart, turning a duplicate-samples bug
into a lost-history one. Abandonment is also deferred until every failing tag is over budget, so
nothing is discarded on a pass that could not have advanced the head anyway. Each abandonment logs
a Warning naming the tag; the total rides RecorderStatus.AbandonedEntries.

Capacity also gains a non-zero default (500,000 entries) as the disk backstop for the one case the
quarantine deliberately cannot resolve — a historian refusing every write, where retaining is
correct. Set 0 to restore unbounded retention.

Every new test was falsified by reverting the production change it guards, and each one reddens
alone:

  * drop the backend-reachable evidence -> only A_backend_that_fails_every_tag_abandons_nothing
  * never abandon -> only A_permanently_failing_tag_is_abandoned_so_healthy_tags_stop_being_rewritten
  * latch the capture gate at construction -> only The_capture_gate_is_re_read_per_value...
  * treat any Primary as a scope peer -> only the two scope-mismatch cases

Full suite green. (Four OpcUaClient.Browser failures during the run were the opc-plc fixture being
down on the shared Docker host; brought it back up and they pass.)

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-08-04 12:12:16 -04:00
Joseph Doherty ad74473452 fix(historian): the recorder died on its first value — live gate for continuous historization (#491)
v2-ci / build (push) Successful in 4m54s
v2-ci / unit-tests (push) Failing after 16m42s
Ran #491's live gate against a real ZB.MOM.WW.HistorianGateway talking to a real AVEVA
Historian, and it found a production-fatal defect on the first value it ever saw.

ContinuousHistorizationRecorder.OnValueChangedAsync touched `Self` after awaiting
IHistorizationOutbox.AppendAsync(...).ConfigureAwait(false). ConfigureAwait(false) discards
Akka's ActorTaskScheduler synchronization context, so `Self` — which reads ActorBase.Context —
threw NotSupportedException. The throw escaped into supervision, which RESTARTED the actor;
because production seeds an EMPTY ref set (the deployed set arrives later via
UpdateHistorizedRefs), the restart silently discarded every historized ref. Net effect: one
value captured, then nothing, with no further error to show for it. Fixed by capturing
`IActorRef self = Self` before the await — the idiom the GetStatus handler already applied to
Sender.

Thirteen unit tests missed it because InMemoryOutbox.AppendAsync returned
ValueTask.CompletedTask: a completed ValueTask never yields, so the continuation ran inline
with the context still installed. The production FasterLog outbox fsyncs per entry and does
yield. The first regression test was itself vacuous — `await Task.Yield()` posts back to the
CAPTURED context, so the append still completed on the actor thread and reverting the fix left
the test green. The fake must complete on a POOL thread (Task.Delay(1).ConfigureAwait(false)),
as a real fsync does; with that, reverting the fix reddens exactly one test.

The rig could not run this gate at all: docker-dev carried ServerHistorian__* but no
ContinuousHistorization__* keys, so the recorder could never spawn. Both centrals now carry
them (default OFF — the recorder needs ContinuousHistorization:Enabled AND
ServerHistorian:Enabled), with the outbox on the per-node named volume so it survives a
container recreate. ServerHistorian__UseTls was hard-coded true and is now parameterized; a
plaintext h2c gateway was unreachable without it.

Gate results: outbox append, drain, WriteLiveValues accepted by a real historian, and restart
convergence (capture resumes after a restart with no new deployment) all pass. The read-back
hop is NOT proven — the LAN historian accepts writes but serves no reads under a "License
violation: Database tag count exceeds license tag count", and the licensed corporate one needs
the VPN. EnsureTags provisioning is likewise unexercised there (RemoteGrpc-only, and that CAP
is not listening). #491 stays open for the read-back hop alone.

Also recorded, not fixed: the recorder has NO Primary gate, unlike the alarm store-and-forward
sink, so both nodes of a redundant pair send duplicate live values. Gating it would introduce a
failover window with no capture — that is a design decision, not a cleanup.

Evidence: docs/plans/2026-08-01-continuous-historization-live-gate.md

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-08-01 19:57:37 -04:00
Joseph Doherty 6b3da93151 fix(browse): commit the browsed data type, and fix the probe classification the fixture was hiding (#536)
v2-ci / build (push) Successful in 4m17s
v2-ci / unit-tests (push) Failing after 16m47s
A browse-committed AB CIP / TwinCAT / FOCAS tag bound with its model's DEFAULT
data type, not the one the device reported. A browsed REAL committed as
`{"tagPath":"Pump_1_Speed","dataType":"DInt"}` — and those three drivers decode
the wire bytes by that field, not by the raw row's OPC UA DataType — so the tag
read four bytes of a float through an integer decoder and published a plausible
wrong number with no error raised anywhere. FOCAS was missed when #536 was filed.

The type is CARRIED, not derived. Reverse-mapping the leaf's driver-agnostic
DriverDataType looks like the smaller fix and is wrong: SInt/Int/DInt/USInt/UInt
all collapse into Int32 on the way out of the driver, so that version would bind
a 16-bit INT as a 32-bit DINT while appearing to fix the REAL. Drivers now state
their own type name on DriverAttributeInfo.NativeDataType, which reaches the
picker as AttributeInfo.AddressFields["dataType"] and the commit mapper from
there. A leaf that states nothing keeps the model default — the pre-#536
behaviour, kept deliberately as the fallback rather than a guess.

Numeric strings are refused before parsing: Enum.TryParse accepts "9" for any
enum and Enum.IsDefined then confirms it, so an unguarded parse would bind a tag
to a type nobody named. A test caught this in the first version of the guard.

--- and the other half, which the fixture was hiding ---

Test Connect on a device with NO authored tags — every AB CIP device at the
moment an operator first presses the button — reported "CIP handshake failed"
against a healthy controller. That was written down as a fixture limitation
("ab_server doesn't implement @raw_cpu_type"). Both halves of that were wrong:

  * @raw_cpu_type is not a libplctag special tag at all (only @raw, @tags and
    @udt/ are), so it goes out as an ordinary symbolic name that no controller
    defines, and the controller's "tag does not exist" IS the successful answer.
  * ab_server answered an unresolvable tag path with CIP 0x03 where a Logix
    controller answers 0x04 — ErrorBadParam vs ErrorNotFound, which the probe
    classifies oppositely. Fixed in vendored patch 0002.
  * With the fixture then telling the truth, the real defect surfaced:
    AbCipDriverProbe.IsReachableException matched the native C status spellings
    ("STATUS_NOT_FOUND"), but libplctag.NET throws with the MANAGED enum name
    ("ErrorNotFound"). Those substrings can never match, so the reachable
    classification could not fire on the exception path — which is the path every
    no-authored-tags probe takes. This was failing on real hardware too, not just
    against the sim. It now recovers the Status and defers to IsReachableStatus,
    so there is one classification rather than two that can drift.

Rejected: switching the fallback to @tags. libplctag builds a tag-listing tag
with NO network I/O, so it reports OK against any TCP listener — measured green
against a Mosquitto broker.

Verification: full solution suite green. Falsification runs confirm exactly the
intended tests go red — 9 for the type carry, 3 (the reachable statuses only) for
the probe classification. Live on docker-dev: browse-committed TestString/
Motor_Run/TestSINT now store String/Bool/SInt, alongside last session's
Pump_1_Speed still holding the wrong DInt. TestSINT is the falsifier — its row
DataType is Int32, identical to TestDINT's, so no reverse map could have produced
"SInt".

Known consequence: pre-existing browse-committed tags keep their wrong dataType;
the fix applies to new commits only.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-08-01 15:20:07 -04:00
Joseph Doherty 1a1dbc3f00 fix(uns): enforce the UNS segment rule on every authoring path (#535)
v2-ci / build (push) Successful in 4m30s
v2-ci / unit-tests (push) Failing after 16m11s
An area or line could be named "Packaging" or "Line 1", save cleanly, and then
fail the NEXT deployment with UnsSegmentInvalid. Because a deployment snapshots
the whole database, one badly-named area blocked EVERY cluster's deploy - and
whoever hit that was usually not whoever typed the name. Only the equipment form
carried the rule; the deploy gate held its own private copy.

The rule now lives once, on Configuration.Validation.UnsSegment, and both ends
call it. DraftValidator no longer restates it.

Enforced in UnsTreeService, not just on the forms:
- Create/Update Area, Line and Equipment reject an invalid name before touching
  the row.
- The CSV import reports a bad name as an ERROR, not a skip - a skip means "you
  already have this row", which would tell the operator the equipment exists
  when it does not. Good rows in the same batch still insert.

A form attribute could never have covered the import, and with no bUnit in this
repo a rule only a form enforces is also a rule no test can reach. The forms
keep an attribute for the immediate message, but it now references the shared
pattern rather than restating it - a second copy is how these drifted apart.

One behaviour change beyond the fix: UnsSegment.AttributePattern admits
"_default", which the equipment form's hand-written literal rejected. The form
was stricter than the gate it was mirroring, so a _default row was uneditable
through the AdminUI.

Tests: 41, falsified with three production mutations - dropping the CreateArea
guard reds exactly the CreateArea rejections, turning the import error back into
a skip reds only the import test, and narrowing AttributePattern reds only the
attribute/IsValid agreement. Every rejection is paired with a name that must
still be accepted, or a guard that refused everything would pass.

Live-verified on docker-dev: the area modal now refuses "Packaging" in place
with the rule spelled out, "packaging-b" saves, and a CSV import of two rows
reports Inserted 1 / Skipped 0 / Errors 1 naming the offending row - the path no
form attribute reaches. Rig cleaned up and a further deployment sealed.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-08-01 11:53:58 -04:00
Joseph Doherty d542ab5b7c feat(security): author ACL grants from the real tree, not free text (#520 stage 7)
The last stage of #520. Enforcement landed in stages 5-6; this closes the
authoring end, where a grant could be saved, deployed and sealed green while
resolving to nothing.

Scope kind and scope target are now chosen TOGETHER from a picker over the
cluster's raw and UNS trees (AclScopePickerModal -> AclScopeTree, backed by
IAclScopeService). They were previously an unrelated dropdown and a free-text
box, so "RawDevice + a TagId" was a well-formed row. Because the trees are
rooted at the grant's own cluster and each node supplies its own kind,
NodeAclScopeCrossCluster, NodeAclScopeIdUnexpected, NodeAclScopeIdMissing and
NodeAclScopeKindRetired all become unauthorable by construction.

CheckScopeAsync mirrors DraftValidator.ValidateNodeAclScopes rule for rule and
blocks the save when a scope resolves to nothing - re-checked on submit, not
trusted from form load, because a row whose entity was deleted since is exactly
where the operator never touches the picker. The list page marks such rows
unresolved with the reason. The principal field suggests known principals and
reports how many live keys reach the one typed; reaching nobody warns rather
than blocks, since authoring ahead of minting is legitimate.

Deliberate departures from the plan line, all recorded in the design doc:
- The banners are reshaped, not removed. "Not enforced" stopped being true at
  stage 6, but enforcement is still a per-node flag the AdminUI cannot see, so
  a narrow grant really does confer nothing on a default-configured node.
- A Cluster row produces a NULL ScopeId. The deploy gate rejects one that
  carries an id, so filling in the cluster id would author undeployable rows.
- AclScopeTree is a new component rather than a third mode on RawTree, which
  already carries the /raw editing tree and the equipment reference picker.
- UNS tags are not offered: a UNS signal is a UnsTagReference, and a Tag grant
  already covers the raw node and every UNS projection of it.

Also fixed: the ACL editor had a DataAnnotationsValidator and no
ValidationSummary, so an invalid NodeAclId made Create a silent no-op.

Tests: 30 in AdminUI.Tests/Acls, falsified with six production mutations -
each turned exactly the intended tests red and no others.

Live gate PASSED on docker-dev, 11 legs; both central containers asserted on
the same image by container id. The pair that matters is legs 8 and 11: the
page and the deploy gate reject the same row with the same reason. Legs 5 and
9 are the positive controls - without them the gate passes against a page that
refuses everything. Not covered: UNS-realm scope selection (SITE-A has no UNS
areas). Rig restored to zero ACL rows.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-08-01 10:53:31 -04:00
Joseph Doherty 8cdbcb9823 fix(security): resolve the event-subscribe gate's source through IsHandleInNamespace
SubscribeToEvents' sourceId is the manager HANDLE, not a NodeState — the same
object-typed trap as ContinuationPoint.NodeToBrowse, found the same way. The
`sourceId as NodeState` cast compiled, always yielded null, and silently
disabled the gate: an ungranted session could subscribe to an equipment's event
notifier and receive every alarm it raises, including the condition fields,
while every value on it was refused.

Now uses the SDK's own IsHandleInNamespace, which cannot be wrong about the type.

The new test passes a null monitored item deliberately: the gate must deny
without touching the item, which also makes the test a discriminator rather than
a restatement — against the broken cast the call falls through to the base
implementation, which does dereference it, so the test fails loudly.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-08-01 09:42:32 -04:00
Joseph Doherty 00aa486677 feat(security): enforce node ACLs on read, browse and subscribe (#520 stage 6)
Completes data-plane enforcement behind Security:Acl:Enabled. Read (every
attribute, not just Value), Browse, TranslateBrowsePath, CreateMonitoredItems,
SubscribeToEvents and SetMonitoringMode now consult scoped NodeAcl grants.
With the flag off nothing changes.

Four things went beyond the stage as written, each because leaving it out
would have made the feature look like it worked:

- Browse needed ancestor visibility. The trie inherits downward, and a client
  reaches a deep node by browsing the nodes above it, so without this every
  grant narrower than the cluster was authored, shipped and unreachable. It is
  a separate non-inheriting marker, NOT a synthesized Browse grant on each
  ancestor: the additive downward walk would carry such a grant from Plant onto
  Plant/Siemens/dev9 and every other sibling subtree. Pinned by a test that
  goes through the evaluator — probing the trie helper directly passes against
  the broken design, because a sibling is absent from the trie either way.

- Revocation had to reach LIVE subscriptions. Every other operation re-asks per
  request; a subscription is authorized once and then streams, and streaming is
  how machine consumers actually read this server — so stopping only the
  re-asking operations would have made revocation close to cosmetic.
  IDataPlaneAuthoritySource gained a Changed event.

  A denied item is queued BadUserAccessDenied and then DETACHED from its
  MonitoredNode2 fan-out, not set MonitoringMode.Disabled. Disabling discards
  the item's queued notifications, so the client is silenced without ever being
  told why. The over-the-wire test caught this; the unit-level path reports the
  item as stood down either way. Detaching is also reversible, so a restored
  grant resumes the feed with no client action.

- The decision cache holds the grant WALK, not the decision. Grants and the
  trie are fixed for a generation; a key's ExpiresUtc passes with the clock, so
  caching the whole decision would let an expired key keep working until the
  next deploy — the stage-5 open-session hole in a subtler form.

- TranslateBrowsePath is gated, without which browse filtering is decorative: a
  client refused a browse asks TranslateBrowsePathsToNodeIds for the same path.

Found en route: UserAuthorizationState's staleness ceiling couples two clocks.
MembershipResolvedUtc is stamped from DataPlaneAuthorizer's TimeProvider while
IsStale is evaluated against TriePermissionEvaluator's; they are the same
instance in production and diverge the moment anything injects a test clock, at
which point the evaluator denies EVERYTHING with a verdict indistinguishable
from "no grant matched". Stage 5's claim that these predicates cannot fire was
accidentally true; they are now disabled explicitly.

Also fixed: ContinuationPoint.NodeToBrowse is the manager HANDLE, not a
NodeState. The declared type is object, so the wrong cast compiled cleanly and
silently yielded null — skipping the browse source gate entirely.

Falsified: disabling the transit marking reddens exactly the three tests that
assert transit works; implementing transit as an ancestor grant reddens the
sibling-leak test; skipping the fan-out detach reddens the revocation test.
Full solution suite green.

The stage 8 live gate has NOT run yet.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-08-01 09:22:12 -04:00
Joseph Doherty f692f6afe4 feat(security): enforce node ACLs on write, alarms and HistoryRead (#520 stage 5)
`Security:Acl:Enabled` (default false) makes scoped `NodeAcl` grants decide
data-plane authorization at the three seams that have one, and gives HistoryRead
a check it never had. Read, Browse and Subscribe stay ungated — stage 6.

The ACL decision REPLACES the server-wide role check rather than chaining with
it. Chained, a grant would have to confer the role as well as pass the scope
check, and only Cluster-scoped grants confer a role — so every narrow grant
would have stayed inert and the flag would have looked inert too. The
load-bearing test is an ALLOW: a session carrying no roles at all writing
successfully on the strength of its grant. A deny-only test passes against a
build where the ACL is never consulted, because the role gate denies too.

Found en route: the principal never reached the session. The authenticator
passed it as OpcUaUserAuthResult.DisplayName, but RoleCarryingUserIdentity
derives DisplayName from the presented token — for a key-bearing client that is
the static username `apikey`, identical fleet-wide. So the trie's matching key
was dropped at the identity boundary, and the audit ClientUserId on a rejected
write recorded `apikey` for every consuming system. Principal and ApiKeyId are
now carried explicitly.

Beyond the stage as sketched:

- Revocation reaches an OPEN session. Every decision re-checks the
  authenticating key against the current snapshot; without it a key revoked by a
  deployment kept its authority until the client chose to reconnect, which for a
  machine-to-machine consumer can be indefinitely.
- UserAuthorizationState is built per CALL, not per session. The per-session
  shape exists so an LDAP session can re-resolve membership that changed out of
  band; nothing can change out of band under API keys, so the generation stamp is
  the whole invalidation signal and a per-call record picks it up for free.
  IsStale/NeedsRefresh therefore cannot fire here and are documented as vestigial.
- The trie is built inside DataPlaneAuthorityState.Apply, under the same
  generation as the snapshot, rather than by a second wiring at the publish
  actor. An uninstalled trie denies everything — indistinguishable from working
  enforcement. Deleting the install turns 13 of the 22 new tests red.
- The deploy log reports what the BUILD dropped instead of re-deriving it. The
  old count agreed with the builder on one of its four drop reasons; a rule with
  a blank ScopeId, a retired scope kind, or a path not starting at a realm
  vanished with the log reading zero.

Both IApiKeyStore implementations widened to the full grant set. The narrowing
was redundant — ApiKeyInterimRoleMapper applies the same filter itself — and
became a trap once scope was enforced. Pinned by asserting the roles are
unchanged, with the two grants carrying different flags so it cannot pass by
accident.

Falsified by mutation: enforcement never engaging, the write seam ignoring the
ACL, the realm dropped from the scope, the revocation check removed, and the
trie never installed each turn the intended tests red and no others.

Full solution suite green.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-08-01 05:00:28 -04:00
Joseph Doherty df340b8bba fix(tests): three real failures the integration suite had stopped catching
None of these were fixture absence. Each is a guard that went quietly wrong and
then reported the wrong thing.

PrimaryGateFailoverTests — per-cluster mesh Phase 6 (a2c5d57f) moved
RedundancyStateActor out of WithOtOpcUaControlPlaneSingletons into its own
cluster-role-scoped registration, made from Program.cs's DRIVER branch. The
harness models a fused admin,driver node but was never updated, so from that
commit onward NO node it built spawned the singleton: nothing published
redundancy-state, both nodes sat at "role unknown" forever, and the test polled
45s and timed out. The test's own summary calls this its negative control for a
broken redundancy-topic subscribe — it fired correctly, at the harness rather
than at production. Second time this shape has bitten the harness; the
AddOtOpcUaRuntime note a few lines up records the first.

DriverProbeRegistrationTests — the expected driver set was a hand-written array
kept in sync by comment, and it drifted when Sql (9b5a9687) and Mqtt (f79d13e2)
shipped. It failed as "12 where 10 expected", which names neither driver and
reads as if the probes were wrong. It also could not catch the direction that
matters: a driver type registered with no probe passed silently, because a
hand-written list only grows when someone remembers, and this test exists for
the case where nobody did. Now derived from DriverTypeNames.All, both
directions, plus an explicit case-drift test for the two types whose AdminUI key
differs in case from the constant (TwinCat/TwinCAT, Focas/FOCAS) — which the
derived tests cannot cover, since they compare the constants to themselves.

DriverProbeHandshakeE2eTests.AbCip_Green_AgainstSim — the probe config still used
the retired v2 `Tags: [{DeviceHostAddress, TagPath}]` shape, so
AbCipDriverOptions.RawTags bound empty, the probe fell through to its
@raw_cpu_type system-tag fallback, and ab_server answered ErrorBadParam. The test
has therefore spent the whole v3 migration exercising the one path its own
comment says it does not exercise. Rewritten to the v3 RawTags shape, and the
assertion tightened from ShouldContain("CIP session OK") to an exact match:
the probe's two green messages both contain that substring, so the loose form
would go green again the moment the config merely reached the controller,
whether or not the authored tag resolved.

Falsified each: drop the MTConnect probe (2 red, by name), remove the harness
singleton registration (back to the 48s "role unknown" timeout), break the
RawTags key (back to ErrorBadParam).

Host.IntegrationTests 211 passed / 4 skipped / 0 failed, against live fixtures on
10.100.0.35.

Still red and NOT addressed here: the AbLegacy integration suite (4 tests). Its
fixture is genuinely down, but it hard-fails instead of skipping because the
AbCip ControlLogix container holds :44818 — the reachability guard cannot tell
"my ab_server" from "someone else's", so SkipReason stays null and SLC500-mode
PCCC runs against a ControlLogix. Needs either distinct fixture ports or a
family-aware guard; both are shared-infrastructure changes.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-08-01 02:09:15 -04:00
Joseph Doherty 3a6b2a1daf feat(acl): variable-depth scope model + the scopePaths producer (#520 stage 3)
Makes the /raw device tree addressable by an ACL rule, and builds the
scope-path producer PermissionTrieBuilder has accepted since it was written
but which had no caller anywhere.

The plan for this stage said "add NodeHierarchyKind.Raw, whose path is the
RawPath segments Folder/Driver/Device/TagGroup/Tag". That shape is wrong.
RawFolder.ParentRawFolderId and TagGroup.ParentTagGroupId are both
self-referencing, so folders and tag groups each nest without bound and a real
RawPath is folder…/Driver/Device/group…/Tag. NodeScope was fixed-arity and
PermissionTrie.CollectMatches was five hardcoded steps, so the scope model
could not address a real raw tree at all. NodeScope is now {ClusterId, Kind,
Segments} and the walk is a segment loop. The trie STRUCTURE was already
variable-depth (NodeAclPath.Segments is a list, Children is a recursive
dictionary), so only the walker and the scope record had to change.

Four decisions worth keeping:

- The namespace level became the realm. Level 1 gated on NodeScope.NamespaceId,
  but v3 has no Namespace entity — the snapshot was retired when the address
  space went dual-namespace, and the identifier appears nowhere in production
  outside NodeScope. So the level could only ever fail to match, which silently
  made every sub-cluster grant unreachable while cluster grants kept working.
  It is now a realm token derived from the scope's Kind, not carried on it, so
  the walk and the producer cannot disagree about its spelling.
- Provenance comes from the granting row's own ScopeKind, recorded on TrieGrant
  at build time. Depth-derived provenance could not name a raw level at all,
  since the depth of "Device" varies with folder nesting.
- The trie comparer moved from OrdinalIgnoreCase to Ordinal. Raw sibling-name
  uniqueness is ordinal, so Speed and speed can both exist under one device and
  a grant on either would have matched both.
- The null-scopePaths "deterministic test mode" is deleted. It planted
  unresolvable rows at a direct child of the trie root, a position the walker
  cannot reach, so the grant looked placed and could never match — and every
  test using that mode proved nothing about production placement. scopePaths is
  now required, and a row that does not resolve is dropped with a diagnostic.

A scope resolves to a LIST of paths: a raw tag projected into N equipments is
reachable at N+1 NodeIds and a write through any of them lands on the same
driver reference, so a Tag-scoped grant covering only the raw node would be
bypassable through a UNS one. The lookup is keyed on (ScopeKind, ScopeId), not
ScopeId alone — ScopeId has no FK and no type discriminator, so an id collision
across entity types would hand a grant the wrong node's paths.

Also closed here, all found by review rather than asked for:

- NodeAcl rows had no deploy-time validation of any kind and were not reachable
  from DraftValidator at all (DraftSnapshot carried no NodeAcls). They are now
  gated for dangling ids, cross-cluster scopes, blank/contradictory ScopeId, the
  retired FolderSegment kind, and undefined ordinals.
- ConfigDbApiKeyStore conferred roles from Cluster-scoped grants authored in ANY
  cluster, because it filtered on scope kind with no ClusterId predicate while
  ArtifactApiKeyStore read an already-cluster-filtered snapshot. On a fused
  admin+driver node that was a cross-cluster over-grant. Its doc comment claimed
  the two stores matched.
- The two AdminUI ACL banners still said enforcement was LDAP-group -> role
  mapping, which stages 1/2 made false in both directions.
- The /apikeys page was never classified in PageAuthorizationGuardTests, so that
  test has been red since the key-minting commit merged — I did not run
  AdminUI.Tests before merging stage 4.

Falsified rather than assumed: 8 mutations against the trie tests, 5 against the
deploy gate (including one proving a cross-cluster row is not silently
mis-diagnosed as unresolved), a staged red->green for the over-grant regression,
and the realm gate, the comparer and the malformed-path guard each broken
individually to confirm only their own tests go red.

Node ACLs are still not ENFORCED — nothing constructs a NodeScope or calls the
evaluator yet. That is stages 5 and 6; this stage makes the model able to
express what those will enforce.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-08-01 01:07:59 -04:00
Joseph Doherty a438ac1640 feat(acl): keys + ACLs reach driver-only nodes via the artifact (#520 stage 4)
A driver-only node has had no ConfigDb since per-cluster mesh Phase 4, so it
registered NullOpcUaUserAuthenticator and denied every UserName token. Its keys
now ride the deployment artifact instead.

- ConfigComposer snapshots ApiKeys alongside the NodeAcls it already carried.
  Only the peppered HMAC ships, never a secret, and the pepper is node config
  that is deliberately not in the artifact.
- DeploymentArtifact.ParseDataPlaneAuthority decodes both node-side. Grants are
  scoped to the node's own cluster; keys are not, because ApiKey carries no
  ClusterId — a key is a fleet-wide credential and the ACL rows are what bind it.
- OpcUaPublishActor installs them on DataPlaneAuthorityState on every apply,
  BEFORE its plan.IsEmpty early-return: an artifact that only revokes a key
  produces an empty address-space plan, so feeding after that return would leave
  the revoked key working until an unrelated structural change redeployed.
- ArtifactApiKeyStore serves them to session activation; a node with a ConfigDb
  keeps ConfigDbApiKeyStore, whose per-request read is what makes revocation
  immediate there.
- OtOpcUaNodeManager gains DataPlaneAuthority — the cluster identity blocker #4
  named. NodeScope.ClusterId is required and the evaluator fails closed on a
  mismatch, so until now no scope it built could have evaluated. Nothing reads it
  until stages 5/6.

The generation is a node-local COUNTER driven by the RevisionHash, not derived
from its bits. PermissionTrieCache treats the highest GenerationId as current, so
a generation taken from hash bytes would install a lower number about half the
time and the cache would go on serving the previous deployment's ACLs, silently.

Sessions are not stamped with it yet — that belongs with the first seam that
reads a UserAuthorizationState, in stage 5, rather than being built now and
consulted by nothing.

Live-gated on docker-dev against site-a-1 (driver-only, no ConfigDb): key
authenticates, wrong secret denied, both halves of the revocation asymmetry
observed, and a SITE-A grant confirmed not to reach site-b-1. Key minted with an
independent Python HMAC so the verifier was checked against something other than
itself. Rig left clean.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-31 14:37:18 -04:00
Joseph Doherty dd939d3c97 feat(acl): anonymous becomes a normal grantable principal (#520 D3)
Anonymous sessions used to short-circuit in HandleImpersonation — "let the SDK's
default validation stand" — so they always connected and always carried no roles.
Now admission and authority are separated:

  admission  -> OpcUa:AllowAnonymous, the HOST's decision (it owns token policies)
  authority  -> the authenticator, resolving the reserved principal "anonymous"
                through the SAME grant path a key's principal goes through

So anonymous can be granted WRITE, not merely tolerated as read-only, and it
arrives at the downstream gates as the same RoleCarryingUserIdentity a key
produces — which is the real payoff: no gate carries an anonymous-shaped branch,
so there is no bypass path to get wrong.

AllowAnonymous defaults to TRUE on purpose. Defaulting it false would silently
deny every client without a key the moment this deploys, including ScadaBridge's
Data Connection Layer in another repo. Making keys mandatory is a rollout
decision, not an upgrade side effect. When false, the Anonymous token policy is
withheld so a client is refused at DISCOVERY rather than only at activation, and
activation is rejected independently in case a client attempts a token type the
endpoint never advertised.

Two fail-closed choices, both falsified:
- A failure to read anonymous's grants DENIES rather than admitting with no
  roles. Admitting is the pre-#520 behaviour, and defaulting to it exactly when
  the server cannot determine what anonymous may do stops being harmless once
  reads are gated. Making it admit reds Anonymous_denies_when_grants_cannot_be_read.
- A key may not authenticate as the reserved "anonymous" principal, or a
  credentialled client silently inherits whatever anonymous was granted.

AuthenticateAnonymousAsync is a DEFAULT interface implementation returning
admit-with-no-roles, i.e. exactly the pre-#520 behaviour, so
NullOpcUaUserAuthenticator and every test double keep working rather than being
forced to reimplement it — important because driver-only nodes run the Null one
and would otherwise black out. Note a default interface method is only reachable
through the interface-typed reference, which is how OpcUaApplicationHost holds it.

An existing test asserted the old fall-through and correctly went red; it is
rewritten to pin the new contract rather than deleted, with the reason recorded.

OpcUaServer 366, Host 42 green.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-31 13:20:14 -04:00
Joseph Doherty 65fda7237f refactor(acl): delete the LDAP data-plane authenticator and its tests (#520)
Stage 2b. LdapOpcUaUserAuthenticator was left registered nowhere by stage 2a;
this removes it, its three test files, and the config surface that existed only
to serve it.

Deleted: LdapOpcUaUserAuthenticator, LdapOpcUaUserAuthenticatorTests,
LdapAuthResilienceTests, LdapGlauthOutageLiveTests (19 tests).

Also removed four Security:Ldap keys — AuthTimeoutMs,
MaxConcurrentAuthentications, OutageFailureThreshold, OutageCooldownSeconds —
plus their validator rules and binding/validator test coverage. Verified first
that the ONLY consumers were the deleted class and the validator rules asserting
them; none appear in any checked-in appsettings. Leaving them would have created
exactly the dead-config surface #521/#524/#525 were filed to clear up.

Worth stating why that resilience machinery does not need relocating rather than
just deleting. It existed because the OPC UA SDK raises impersonation
SYNCHRONOUSLY under a SessionManager-wide event lock, so a hung LDAP bind there
serialized every session activation server-wide — Anonymous and X509 included.
Key verification is one indexed lookup plus one HMAC with no network I/O, so the
hazard the wall-clock bound, concurrency cap and outage circuit guarded against
no longer exists on that path. LDAP now runs only on AdminUI login, an ordinary
async request path where a slow directory affects the one request making it.

ConnectionTimeoutMs is RETAINED: it is projected into the shared library and is
not authenticator-specific.

Docs corrected rather than left to rot:
- CLAUDE.md's "LDAP Authentication" section described the deleted file as the
  data-plane authenticator. Rewritten, including a warning not to "restore" it on
  seeing the LDAP wiring that AdminUI legitimately still needs.
- infra/README §5b (the GLAuth outage live gate) marked RETIRED with the reason,
  rather than silently dropped — the harness GLAuth is still used by
  OTOPCUA_HARNESS_USE_LDAP=1 and is unaffected.
- docs/security.md's five-key resilience table cut to the one surviving key, and
  a new API-key identity section added.
Historical archreview/ records are left as-is; they are dated accounts.

Host.IntegrationTests 211 tests (was 230, i.e. exactly the 19 removed) with the
same 3 pre-existing failures verified against clean master. Host 37, Security 89.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-31 13:08:50 -04:00
Joseph Doherty 0329fa4d4b feat(acl): API-key identity replaces LDAP on the OPC UA data plane (#520)
Stage 2a. Clients present the static username "apikey" with an
otua_<keyId>_<secret> credential as the password; the key resolves to a
principal. LDAP registrations are deliberately RETAINED for AdminUI login —
only IOpcUaUserAuthenticator moves, which is what D2 asked for.

The load-bearing decision here is what roles a key gets. The two live gates
(WriteOperate on Value writes, AlarmAck on Part 9 methods) check a SERVER-WIDE
role set, so the cutover has to keep producing one or it would lock every client
out of writes long before per-node evaluation lands in stage 5.

ApiKeyInterimRoleMapper therefore maps ACL grants to roles, but ONLY
cluster-scoped ones. The obvious version — union the permission flags across all
of a principal's grants — would let a grant authored narrowly ("WriteOperate on
Equipment X") confer server-wide write authority, because nothing in the pipeline
can enforce scope yet. That fails in the dangerous direction: the operator's
narrow intent silently becomes broad. Restricting to cluster scope under-grants
instead, which is no worse than today (where every ACL row does nothing) and can
never exceed what was authored. Falsified: deleting the scope check reds exactly
A_narrower_scoped_write_grant_confers_nothing_yet and nothing else.

Verification is one indexed lookup plus one HMAC, with no network I/O at all.
That matters because the SDK raises ImpersonateUser synchronously while holding a
SessionManager-wide event lock, so this path does not stall one request — it
serializes every session activation server-wide. It is the main practical gain
over the LDAP bind it replaces.

Every rejection returns one opaque message so the server cannot be used as an
oracle for whether a key id exists or which half of a credential was wrong; a
test asserts the failure modes really are indistinguishable AND that a valid key
still succeeds, so it cannot pass by denying everything.

Caught while wiring: OtOpcUaServerHostedService takes IOpcUaUserAuthenticator as
a REQUIRED ctor parameter, so leaving a driver-only node unregistered is not a
quiet fallback to deny-all — it fails DI and the node does not boot.
NullOpcUaUserAuthenticator is now registered explicitly there. A driver-only node
has no ConfigDb since Phase 4 and so has no key source until the artifact-backed
store lands in stage 4; it denies UserName tokens until then, which is the safe
direction, and anonymous sessions are unaffected.

LdapOpcUaUserAuthenticator is now registered nowhere and is dead code. Deleting
it plus LdapOpcUaUserAuthenticatorTests / LdapAuthResilienceTests /
LdapGlauthOutageLiveTests is stage 2b, kept separate because those cover a
live-gated resilience feature (hard wall-clock bound, bounded concurrency,
directory-outage circuit) that exists precisely BECAUSE the LDAP bind ran inline
on session activation — a constraint the key path does not have. That deserves
its own commit, not a footnote in this one.

Anonymous-as-a-grantable-principal (D3) is also stage 2b.

Host 37, Security 89, OpcUaServer 364 green.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-31 12:57:51 -04:00
Joseph Doherty 5a7a08deca fix(drivers): detect mid-run comms loss and recover from it (#527)
DriverInstanceActor.DisconnectObserved had no production sender. The only paths
into Reconnecting were a failed *initial* connect and an operator's Force
Reconnect, so a driver that connected and then lost its device stayed Connected
indefinitely: publishing Bad for every tag, never re-initialising, and NOT
recovering when the device returned. PublishHealthSnapshot read GetHealth() for
reporting only and never acted on a driver reporting itself unhealthy.

Both comms-loss quality paths -- #477's native-condition annotation and #481's
scripted-alarm input fan-out -- hang off ConnectivityChanged, so both were
correctly wired to a signal that never fired.

The Connected health tick now evaluates a watchdog and self-sends
DisconnectObserved when the driver reports a non-Healthy state AND its
LastSuccessfulRead has been frozen for DefaultCommsLossTimeout (90s).

The conjunction is the design, and the issue's own proposal -- "non-Healthy for
N consecutive polls" -- is wrong. Degraded means *connected but some data is
bad*; several drivers write health per tag inside the read loop
(ModbusDriver.ReadAsync), so one unreadable address latches Degraded forever
against a perfectly reachable device, and a state-only watchdog would reconnect
that driver every 90s indefinitely -- worse than the bug. LastSuccessfulRead is
the honest evidence: preserved across Degraded/Faulted writes, advanced by any
success. The state check remains the second conjunct so an idle Healthy driver
with nothing subscribed is not declared dead for not reading.

Verified across all 12 drivers that a sustained failure does reach a non-Healthy
state -- nine poll drivers via Degraded, MQTT via live connection state, Galaxy
via its reconnect supervisor. CalculationDriver reports Healthy while running
and so can never trip, which is correct: it has no transport.

Also: the Reconnecting retry now calls ShutdownAsync before InitializeAsync.
ModbusDriver (_transport) and MqttDriver (_connection) overwrite an
IAsyncDisposable field inside InitializeAsync without disposing the previous
one, so re-initialising without a teardown leaks a socket per attempt -- latent
while only a manual Force Reconnect reached this path, but the watchdog makes it
automatic and unbounded (~360 leaks for an hour-long outage at the 10s retry).

Tests: 8 new in DriverInstanceActorCommsLossWatchdogTests, each absence
assertion carrying a positive control (a proven count of processed health-poll
ticks). Falsified five ways -- dropping either conjunct reds exactly the test
written for it, and removing the teardown, the null baseline, or the watchdog
call each reds its own guard.

Live gate PASSED on docker-dev (Modbus + otopcua-pymodbus-standard), run twice:
  - fixture stopped -> watchdog fires at ~108s, "declaring comms lost"
  - fan-out observed at Debug: "pushed BadNoCommunication for 2 mux ref(s)"
    (#481 Layer 4) and the #477 native-condition annotation on a driver
    owning conditions
  - fixture restarted -> reconnected in ~8s with NO node restart; both the raw
    (ns=2) and UNS (ns=3) NodeIds read Good with fresh timestamps

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-31 10:58:38 -04:00
Joseph Doherty c81cef39f5 feat(alarms): bridge driver comms-loss into scripted-alarm input quality (#481)
Layer 4 of the condition-Quality chain (#477 -> #478). #478 gave a scripted
condition the worst quality of its input tags, but only for inputs whose driver
PUBLISHES a Bad data change. A poll driver whose device goes unreachable
publishes nothing — it raises ConnectivityChanged(false) and goes silent — so
the engine held its last Good value, WorstInputStatus stayed Good, and worse,
AreInputsReady stayed true, so the predicate went on evaluating a stale value
after the source had died.

`DriverHostActor.FanCommsLossToDependencyMux` pushes a synthetic
BadNoCommunication with a null value into the dependency mux for every value ref
the disconnected driver owns.

The issue asked for a driver -> all-tag-refs map to be built for this. It
already exists: `_nodeIdByDriverRef`, keyed (DriverInstanceId, RawPath) and
rebuilt from the composition on every apply. Alarm-bearing tags live in the
separate `_alarmNodeIdByDriverRef` and are deliberately excluded — a native
condition is not a mux value and takes the Part 9 quality path instead.

Nothing is pushed on reconnect, deliberately: publishing Good would assert a
value quality this actor has not observed. Recovery rides the driver's own
republish, and the mechanism was verified rather than assumed — the
Connected -> Reconnecting edge calls DetachSubscription, which nulls the
subscription handle, so the reconnect's ResubscribeDesired builds a FRESH
subscription whose PollGroupEngine initial push runs with forceRaise: true.
Without that detach the poll engine would compare against its retained
LastValues, see an unchanged value, raise nothing, and strand these refs Bad
forever — the value-dedup trap that bit the v3 Batch 4 virtual-tag reassert.

Closes #478 Finding 3, which the above depends on. WorstInputStatus skipped
every input whose VALUE was null as "no data yet" — and Bad-with-no-value is
exactly the shape a comms-lost driver produces, so the skip was hiding the case
that matters most; without this half the fan-out above would be silently inert.
The upstream source now stamps a never-pushed path BadWaitingForInitialData —
the honest Part 4 code for that state — and the engine skips that specific code
rather than every null value.

Deleting the null-skip outright is the obvious fix and is wrong in the other
direction: it makes every not-yet-published input drag its condition Bad at
deploy, flooding the quality path with load-time annotations, which is what the
skip existed to prevent. Both mistakes are pinned by a test pair that goes red
under the opposite error, and both were falsified by reverting the production
code:

  old null-skip restored     -> A_pushed_Bad_carrying_no_value      RED
  null-skip deleted outright -> An_input_that_was_never_pushed      RED
  fan-out call removed       -> the three DriverHostActor tests     RED (1 of 7)

The never-pushed test was vacuous on first writing and is worth recording: the
quality bucket only emits on CHANGE, so the load-time evaluation is the one that
flashes Bad, and subscribing to OnEvent after LoadAsync made the assertion
unfalsifiable — it passed against the broken behaviour. It now subscribes first.

`FakeUpstream.ReadTag` returned 0x80340000 (BadNotConnected) for an unset path,
a different Bad code from production's placeholder. Harmless while any Bad
behaved alike; load-bearing now, so it is aligned and pinned by a reflection
guard asserting the engine's private constant agrees with what the production
source stamps.

Behaviour change to weigh, flagged in the issue and confirmed: virtual tags
computed from a comms-lost input now go Bad too. That follows from using the
shared mux and reads as correct, but it is broader than scripted alarms.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-31 09:21:11 -04:00
Joseph Doherty b815446940 refactor(drivers): delete GetMemoryFootprint / FlushOptionalCachesAsync (#525)
Both `IDriver` members had no production call site. Their only consumer was
`MemoryTracking`, deleted with the driver-tier recycle machinery in #522, and
`GetMemoryFootprint`'s doc-comment claimed "polled every 30s by Core" — which
had not been true since v3, even before #522 removed the poller.

Owner decision on #525 was (a) delete rather than (b) build the process-wide
watchdog that would consume them. The driver-side implementations are in git
history and were mostly reusable; what was always missing is the trigger, and a
member nobody calls is how the misleading doc-comment survived this long.

Removed from `IDriver`, all 12 driver implementations, and every test stub —
plus the support code that existed only to feed them, which is the part a
member-only deletion would have left behind as dead weight:

- MTConnect's three per-entry byte-weight constants, its cached
  `ProbeModelDataItemCount`, and `CountDataItems` — a full device-tree walk run
  on every cache fill to populate a number with no remaining reader.
- OpcUaClient's `_discoveredNodeCount` field and the discovery-pass write to it.
- MQTT's `ApproxBytesPerAuthoredTag`.

Two behavioural notes, neither a change in what the software does:

- `AbCipTemplateCache` now has no production reset path. Its only caller was
  AB CIP's flush, which itself had no caller — so nothing changes except how
  visible the fact is. Recorded on the type, along with the correction that its
  comment's claim about a device `ReinitializeAsync` also flushing it was never
  true. A UDT redefined on a live controller keeps its stale shape until the
  driver instance is rebuilt.
- MTConnect's `/probe` cache is still dropped, by `InvalidateProbeModel()` on an
  Agent restart. That is now `internal` rather than `private` so the tests which
  used the flush purely to empty the cache drive the real path instead — they
  now cover a case that actually occurs in production. Several unrelated doc
  comments cited `FlushOptionalCachesAsync` as the canonical CAS example and are
  repointed to it.

Tests: the ones that existed only to assert on the removed members are deleted
(3 OpcUaClient, 3 Galaxy, 2 MQTT, 1 MTConnect, 1 AbCip). Worth noting one was
vacuous — `FlushOptionalCachesAsync_resets_footprint_counter` asserted a
footprint of 0 before the flush and 0 after with no discovery in between, so it
would have passed against a flush that did nothing at all.

Full suite green except 7 failures verified identical on master before and
after (4 AbLegacy integration with the compose profile down, 3
Host.IntegrationTests), checked by name rather than assumed.

Docs corrected where they described this as live: `DriverLifecycle.md` (which
carried the #525 placeholder), `drivers/AbCip.md`, `drivers/AbLegacy.md`, and
`v2/driver-stability.md` — whose "polls this every 30 s" + per-driver
`DriverConfig` memory budget were never built as written and are now banner-ed
as design intent rather than description.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-31 09:07:11 -04:00
Joseph Doherty 803f4e6efe refactor(sql): split ISqlDialect/SqlServerDialect into a .Dialect leaf (#526)
`Driver.Sql.Browser` referenced the runtime `Driver.Sql` project. The AdminUI
references that browser, so the whole SQL driver runtime — and
`ZB.MOM.WW.OtOpcUa.Core` through it — sat in the AdminUI's build/deploy graph.
This is the same layering violation #512 removed from the MQTT browser, in a
second driver, and it is why #512's expected removal of `Core.dll` from the
AdminUI's output did not happen.

MEASURED, both directions, on a clean AdminUI build:

  before: ZB.MOM.WW.OtOpcUa.Core.dll + ZB.MOM.WW.OtOpcUa.Driver.Sql.dll present
  after:  both absent

The old csproj comment's premise was sound and survives — the dialect's catalog
SQL *is* the browse engine, so it must be shared rather than duplicated. What
was wrong was the conclusion that sharing it required referencing the runtime
driver. `ISqlDialect`/`SqlServerDialect` depend on nothing in `Driver.Sql`, so
they move to a `.Dialect` leaf that both consume.

This is the `.Transport` shape, not the cheap one: `ISqlDialect` exposes
`DbProviderFactory` and `SqlServerDialect` returns `SqlClientFactory.Instance`,
so `.Contracts` (deliberately provider-free) cannot hold them. Assembly name is
`.Dialect`; the NAMESPACE stays `ZB.MOM.WW.OtOpcUa.Driver.Sql`, matching the
`Driver.Mqtt.Transport` precedent — the extraction cost zero `using` changes.

Two dependencies the cut edge surfaced as the implicit ones they were:

- The AdminUI itself read `SqlDriver.DriverTypeName` in three places — the tag
  editor map, the tag config validator, and the Sql address picker. All three
  now read `DriverTypeNames.Sql`, which is exactly what that constant resolves
  to and exactly the repoint `SqlDriverBrowser`'s own comment had deferred
  until a factory was registered against the shared constant. One exists now.
- `SqlDriverFormContractTests` asserts the AdminUI form's emitted JSON against
  the runtime factory that reads it, so it genuinely needs the runtime driver.
  `AdminUI.Tests` now references it explicitly. A test project referencing a
  runtime driver is fine — tests are not in the AdminUI's deploy graph.

New guard: `DriverBrowserLayeringTests` (Commons.Tests) scans the csproj graph
of every `*.Browser` project in the tree, transitively. It reads csproj files
rather than loaded assemblies because the cost is a build-graph cost — the
compiler emits no assembly reference for an unused `ProjectReference`, so
`MqttBrowserLayeringTests`' assembly-reference approach cannot see that case.
The two are complementary and each now points at the other.

Falsified three ways, each red then green again: the direct reference re-added
to the browser; the same reference one hop out via `.Dialect` (proving the walk
is really transitive); and both controls — browsers-discovered and
references-parsed — which exist so an empty discovery cannot pass the absence
assertion vacuously.

#526's claim that the reference "carries no comment at all" was wrong; it
carried a detailed one from the scaffold commit. Corrected on the issue and in
the design doc's project table, which had recorded the deviation as deliberate.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-31 08:38:57 -04:00
Joseph Doherty 7f53bd96ec fix(mqtt): close #509, #510, #512, #513, #514
Five MQTT tracker items — four AdminUI/authoring defects plus the .Browser
layering exception. No runtime driver behaviour changes.

#513 payloadFormat in a Sparkplug blob. MqttTagConfigModel.ToJson wrote the key
unconditionally. Sharper than the issue states: PayloadFormat is the one Plain
field with a NON-NULLABLE typed backing, so the write did not preserve a retyped
tag's leftover — it INVENTED "payloadFormat":"Json" in a Sparkplug tag that never
had one. Now Plain-only; preserve-unknown-keys is pinned unchanged.

#509 slashed Sparkplug metric names. The mapper already carried metricName
verbatim; only the tag Name (a RawPath segment) tripped RawPaths.ValidateSegment,
which refused the batch whole — including Node Control/Rebirth, mandatory on
every Sparkplug edge node. ToRawSegment coerces the Name and leaves the address
untouched. Coercion is not injective, so DescribeNameCollisions refuses a
colliding set BY NAME: silently merging two metrics into one tag would be worse
than the refusal it replaces. Applies to every driver, not just MQTT — the
argument is about what a Name is, not about who produced it. The sanitiser is
pinned against RawPaths.ValidateSegment rather than a copied charset.

#510 stale rebirth affordance. _canRebirth was probed once at browse-open and
sessions are reaped for idleness, so a modal left open offered an action whose
token no longer resolved. Re-probed on arm AND on confirm (the reap can land
between the two, and confirm is the one path that publishes to a live broker);
the affordance retires with an explanation instead of vanishing or erroring.

#514 rebirth on a quiet plant. The tree is birth-driven and births are never
retained, so a plant that birthed before the window opened showed an empty tree —
and the scope came only from a tree selection, so the one action that would fill
the tree could not be armed. The session already accepted a bare {group}/{edgeNode}
("the prime rebirth target"); this adds the affordance. Edge-node scope only, not
a group broadcast. The rule is extracted to SparkplugRebirthScope so it is
testable — this repo has no bUnit — and is advisory: the session re-resolves and
refuses before publishing.

#512 .Browser -> .Driver layering. TWO extractions were needed, not the one the
issue anticipated: it costed this as "the client-options builder", but the browse
session decodes births itself, so moving only that would have left the reference
exactly where it was.
  - MqttClientOptionsFactory (TLS, PEM CA-pin validator, credentials, protocol
    mapping) -> new leaf .Transport project. NOT .Contracts: that is deliberately
    transport-free and MqttClientOptions is an MQTTnet type, so .Contracts would
    hand MQTTnet to ControlPlane. This is the fix the .Browser csproj comment had
    already prescribed, against the issue's suggestion.
  - The Sparkplug protocol layer (SparkplugTopic/MessageType, SparkplugCodec,
    RebirthRequester) -> .Contracts, beside the Tahu wire schema it encodes.
Still exactly one copy of the TLS/CA-pin logic; MqttBrowserLayeringTests guards
the graph both ways.

Measured, not assumed: Driver.Mqtt.dll, Polly.Core and Serilog are now absent
from the AdminUI's output. Core.dll remains, because Driver.Sql.Browser has the
SAME violation, undocumented — the old comment blamed this browser for Core and
was wrong. Filed separately rather than fixed in passing.

Full suite green apart from the 7 known pre-existing failures (4 AbLegacy
integration, compose profiles not up; 3 Host.IntegrationTests).

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-31 06:17:18 -04:00
Joseph Doherty 2d20aeb779 fix(opcua,drivers): carry driver status sub-codes to clients (#519) + health-write ordering (#517)
#519 — a driver's OPC UA status code now reaches a client with its sub-code intact.
DriverInstanceActor projected the driver's uint onto a 3-state Good/Uncertain/Bad enum
and OtOpcUaNodeManager re-expanded Bad to a bare 0x80000000, so BadNoCommunication,
BadTypeMismatch and BadNotSupported were indistinguishable on the wire and every
driver's status constants (incl. the 16 #497 had just corrected) were diagnostic in
logs only. Resolved by option (b): the raw uint rides AttributeValuePublished ->
AttributeValueUpdate -> IOpcUaAddressSpaceSink.WriteValue, OpcUaQuality is deleted, and
severity classification is a helper (OpcUaStatus.IsGood/IsUncertain/IsBad).

The surface was wider than the issue costed (41 files, not "the sink and 3
implementations"): OpcUaQuality had non-driver producers with no uint to carry.
Each got its natural code — BadInternalError for a failed virtual-tag script,
BadNoCommunication for driver comms loss — and ScriptedAlarmHostActor's pair of
mutually-inverse uint<->enum mappers is deleted, having round-tripped a code the
engine already held. AddressSpaceApplier's removal writes deliberately keep the
generic Bad: not losing a code the driver had is this issue; inventing one for the
deploy path is a separate call.

Behaviour change: WriteAlarmQuality fires its Part 9 event on a status-code change
rather than a severity-bucket change. While the annotation was 3-state those were the
same predicate; now a move between two Bad reasons changes what a subscriber reads.

New SDK-free named constants live on Commons.OpcUa.OpcUaStatus, and
StatusCodeParityTests is widened to cover them — that guard is reflection-driven, so
it can only see a named constant, never an inline literal.

#517 — the symptom is real but the issue named the wrong path and its fix was unsafe.
ShutdownAsync cannot race: DriverInstanceActor calls it from PostStop, after the
mailbox drains. (Core/Hosting/DriverHost, the one class with a concurrent GetHealth,
has no production call site.) InitializeAsync can: it runs on a fire-and-forget
Task.Run, and MTConnectDriver writes Healthy then starts loops that can throw into a
catch which disposes the client before writing Faulted.

Moving the write earlier, as suggested, inverts the terminal state — teardown drains
in-flight loops that write health as they unwind, so a late loop could leave Healthy at
rest with every connection closed. The fix is a bracket (conservative before, terminal
after), applied to MTConnect's init-failure path only; shutdown keeps its single
trailing write, and the rule plus the reachability table are documented on
IDriver.ShutdownAsync.

CalculationDriver.GetHealth returned a hard-coded Healthy that consulted nothing —
Healthy before initialize, after shutdown and after dispose. Now derived from _running.
Its test, named Health_is_always_Connected, asserted the defect and is replaced.

Every new guard was falsified by breaking the production code and watching it go red.
The two sub-code tests each assert two different Bad codes, since a single-code
assertion could pass against a hard-coded constant under the old projection.

Pre-existing failures, verified unchanged on a stashed tree and not chased: 4 in
Driver.AbLegacy.IntegrationTests (slc500/micrologix/plc5 fixtures not up) and 3 in
Host.IntegrationTests.

Closes #517
Closes #519

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-31 05:25:27 -04:00
Joseph Doherty cbb882293b refactor(drivers): delete the inert driver-tier recycle machinery (#522)
The tier system was documented, operator-authorable, and inert. Deleted rather than activated,
because its premise is gone rather than merely unused.

"Tier C" meant a driver running out-of-process behind an IDriverSupervisor that could restart its
Host without tearing down the OPC UA session. No such process exists anywhere: Galaxy reaches
MXAccess over gRPC to the external mxaccessgw sidecar (PR 7.2 retired the in-process
Galaxy.Host/Proxy/Shared projects) and FOCAS has run in-process since its managed wire client
landed 2026-04-24. Consistently, IDriverSupervisor had ZERO implementations and there was nothing
for one to implement against.

The issue understated the inertness. It says the Tier-C-only protections never engaged, implying
the Tier A/B parts did. They did not: nothing constructs MemoryTracking, MemoryRecycle or
ScheduledRecycleScheduler outside their own unit tests, so the whole Core/Stability recycle layer
was dead — meaning option (a), "pass real tiers", was never a flag flip. It would have meant
writing the wiring that never existed AND arming it.

Deleted: MemoryTracking, MemoryRecycle, ScheduledRecycleScheduler, IDriverSupervisor, the
vestigial DriverTypeRegistry (referenced only by its own tests), and the RecycleIntervalSeconds
knob — which the AdminUI let an operator author and the parser validated while it configured
nothing.

DriverTier itself SURVIVES and is load-bearing: DriverResilienceOptions.GetTierDefaults supplies
the real per-capability timeout/retry/breaker policies via DriverFactoryRegistry.GetTier and
DriverCapabilityInvokerFactory. Only the isolation-and-recycle layer above it is gone.

Deliberately NOT deleted:

- WedgeDetector came along in the same directory and is equally dead in production, but it is
  tier-agnostic and is not recycle machinery — it only shares the folder. Restored rather than
  swept up in a decision that was not about it.
- IDriver.GetMemoryFootprint() and FlushOptionalCachesAsync() lose their only consumer here.
  Removing them touches all 12 drivers and every test stub, so they are documented as
  consumerless and filed as #525 instead of buried in this diff.

Compatibility: a deployed ResilienceConfig blob still carrying "recycleIntervalSeconds" parses
cleanly (unknown keys are ignored — guarded by a new test, because a blob that suddenly failed to
parse would fall back to tier defaults and silently discard the operator's real overrides), and
the AdminUI's preserve-unknown-keys bag keeps the key rather than rewriting stored config on an
unrelated edit.

The 01/U-6 knob-inertness guard carried an explicit carve-out admitting RecycleIntervalSeconds was
dormant and out of scope; that carve-out is now gone, so the expected set is literally what the
test's name claims.

Note: Host.IntegrationTests has 2 failures (DriverProbeRegistrationTests.is_idempotent,
PrimaryGateFailoverTests) — verified pre-existing by reproducing both on clean master dc9d947b.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-30 04:44:04 -04:00
Joseph Doherty 30d0697c28 feat(hosts): surface per-host connectivity on /hosts; drop the unwritable table (#521)
`IHostConnectivityProbe` was a dead surface: eleven drivers implement it, `GetHostStatuses()`
had ZERO production call sites, and `OnHostStatusChanged` had no subscriber outside the Galaxy
driver's own aggregator. Per-host connectivity was computed by every driver and read by nobody.

The issue offered "build the publisher or delete it". The publisher as its entity doc described
it — driver nodes upserting `DriverHostStatus` rows — is not buildable: per-cluster mesh Phase 4
gates `AddOtOpcUaConfigDb` on the `admin` role, so a driver-only node has no ConfigDb connection
to write rows with. So the capability is kept and the transport changed.

`DriverHealthChanged.HostStatuses` now carries the probe result to `/hosts` as a Hosts column.
That channel already reached the page, already survives the mesh split via the Phase 5 gRPC
telemetry stream, and already replays a last-value snapshot on re-subscribe — so per-host state
re-primes after a reconnect without a durable store. Both halves of the interface finally do
what they are for: the event triggers a prompt publish, the pull is the source of truth.

The point of the column is the case the driver-level state chip structurally cannot express: a
multi-device driver stays aggregate-Healthy while ONE of its devices is unreachable.

Two traps, both pinned by tests that were falsified against the prod code:

- The host digest MUST be in the publish fingerprint. On a single-host-down transition every
  other fingerprint component is unchanged, so the dedup would swallow exactly the publish
  carrying the news — the trap that already bit the rediscovery signal. Removing it turns the
  guard test red, verified.
- null (no probe) must stay distinct from empty (probe with no hosts). proto3 cannot tell an
  absent repeated field from an empty one, hence the explicit `has_host_statuses` flag;
  collapsing them would render every probe-less driver as one whose devices are all fine.

Dropped: the DriverHostStatus entity, enum, DbSet, model config and table (migration
DropDriverHostStatusTable — empty on every deployment, so the scaffolder's data-loss warning is
moot, and Down() recreates it exactly).

Found en route, NOT fixed here: `DriverInstanceResilienceStatus` is the identical defect — no
writer, no reader, only a DbSet declaration, while the live data rides the
`driver-resilience-status` telemetry channel. Its doc-comment now states that rather than
describing the sampler and AdminUI join that were never built. Filed as #524 rather than widening
this schema change beyond what was asked.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-30 04:21:08 -04:00
Joseph Doherty 4624141a5d test+docs: retire the stale EquipmentTagsDarkBatch4 skips, guard the deploy-time
tag gate, and fix three silently-broken OpcUaClient integration tests

Continues working through deferment.md's remaining items.

SKIPPED TESTS (13 -> 0 for this reason). The skip said "dark until Batch 4";
Batch 4 shipped as v3.0 and RETIRED the equipment-tag path rather than lighting
it, so every one of them was waiting on something that had already happened and
gone the other way. Resolved individually rather than in bulk:
  - REVIVED onto the raw/UNS shape (6): four DriverHostActor primary-gate cases,
    the cluster-scoping rebuild, and the real-SDK dual-namespace materialisation
    E2E. The behaviour never went dark, only the v2 seeding did.
  - FOLDED into a live parity test (3): DeploymentArtifactRawUnsParityTests
    already compared RawTagPlan record-equal and RawTagPlan carries array /
    historize / alarm intent, so widening its corpus by two tags covers what
    three empty placeholder suites had been promising. Those suites are deleted.
  - DELETED (4): subjects genuinely retired -- equipment-namespace EquipmentTags,
    and both dot-joint {{equip}}.X token suites (that resolver was deleted in
    Batch 3; the slash-joint form is covered by DeploymentArtifactEquipRefParityTests).
Falsified, not assumed: removing the seeded UnsTagReference turns two revived
primary-gate tests red; re-homing the SITE-A node to MAIN turns the scoping test
red. Widening a parity corpus also needed direct value assertions -- parity alone
cannot distinguish "both seams right" from "both seams blind".
Runtime.Tests skips 13->3, OpcUaServer.Tests 4->1; all remaining are deliberate
EquipmentDeviceBindingRetired tombstones.

G-7 (deploy-time TagConfig gate). MQTT shipped an Inspect() nobody ever called;
now wired. Replaced the hand-maintained list with a reflection guard, because the
existing test enumerates driver types by hand and so guards renames but can never
notice a gap. NOTE: the first version of that guard was hollow -- it discovered
candidates via GetReferencedAssemblies(), which is circular, since the compiler
elides a reference nothing in the IL uses. Removing MQTT from the map also removed
its Contracts assembly from the manifest, and the guard passed green with the bug
reintroduced. Rewritten to scan the output directory; re-falsified and it now
fails naming MqttTagDefinitionFactory. Residual recorded at the code: Sql,
MTConnect, Calculation and OpcUaClient have no Contracts-side Inspect at all, so
the deploy gate stays weaker than the AdminUI's authoring gate for them.

OPCUACLIENT INTEGRATION TESTS (3 of 4 failing, on master too). Not fixture rot:
the simulator was healthy and Client.CLI read the very same node Good. v3 made the
driver resolve every reference through its authored RawTags table, so a bare
"ns=3;s=StepUp" fails LOCALLY at the resolver with BadNodeIdInvalid and never
reaches the wire -- the tests were exercising the unresolved-reference guard.
Fixed by seeding OpcPlcProfile.RawTags in the deploy artifact's TagConfig shape
and addressing by RawPath. 4/4 pass.

DOCS. Applied the Phase7* -> AddressSpace* rename across the four live docs
(historical bannered files deliberately untouched), resolving the three that are
not renames to their real members. Found en route that the earlier banner pass
missed three files: VirtualTags.md, OpcUaServer.md and ScriptedAlarms.md all
still presented the test-scaffolding GenericDriverNodeManager as the production
dispatch path. All three now carry the correction.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-28 14:32:13 -04:00
Joseph Doherty 5fff597324 revert(drivers): remove the periodic 5-minute device re-browse (#523)
Removes the tag-set drift detector shipped in e77c8a35. The design was sound
-- the tautology drivers were correctly gated out, and the structurally
undetectable "vanished" direction was declared rather than faked -- but none of
that is the objection. The feature browsed real plant equipment on a recurring
timer, at a frequency no operator could configure (the interval was a
constructor parameter with no appsettings key), and that outbound traffic was
never once observed against a real PLC, CNC or MTConnect Agent.

Removed: TagSetDrift/TagSetDriftDetector; DriverInstanceActor's drift timer,
tick message, Props/ctor parameter, gate, handler and leaf-collector;
ITagDiscovery.AuthoredDiscoveryRefs + .DiscoveryStreamIncludesAuthoredTags and
their four implementations; 14 tests.

Kept: ITagDiscovery.SupportsOnlineDiscovery (it predates this and drives the
universal browse picker), and the whole IRediscoverable consumption from
09a401b8 -- the driver tells us, we do not poll.

CONSEQUENCE, deliberately accepted: AbCip and FOCAS browse a live backend but
implement no IRediscoverable, so they now have NO tag-change signal at all -- a
PLC re-download is invisible until someone re-browses by hand. Recorded in
CLAUDE.md so the next reader does not have to rediscover it, along with the
shape to reach for if that coverage is wanted back (event-driven, or triggered
by a reconnect/deploy, not a wall-clock timer).

Runtime.Tests 476 pass / 13 skipped (skip set unchanged); FOCAS 275, TwinCAT
192, MTConnect 491, AbCip 342, Core.Abstractions 266 all green.

Claude-Session: https://claude.ai/code/session_015p7wGqy3YpZNCpDzTpGMKo
2026-07-28 13:59:06 -04:00
Joseph Doherty e77c8a3569 feat(drivers): tag-set drift detection, gated on SupportsOnlineDiscovery
The second thing #516/§8.2 deliberately did not build. The original objection
stands — Modbus, S7, MQTT, AbLegacy and Sql echo authored config from
DiscoverAsync, so diffing discovered against authored is a tautology for them
— but it is now ENCODED rather than used as a reason not to build.

The discriminator already existed: ITagDiscovery.SupportsOnlineDiscovery is
documented as "enumerates the tag set from the live backend rather than
replaying pre-declared/authored tags", and it separates the fleet cleanly —
FOCAS, TwinCAT, MTConnect and AbCip true; the five config-echo drivers
explicitly false. The check runs only for a driver that is
SupportsOnlineDiscovery AND reports the new AuthoredDiscoveryRefs. That is
nullable rather than empty-by-default on purpose: an empty collection
legitimately means "nothing authored, everything discovered is new", so
conflating the two would report total drift for a driver that never opted in.

Where the value is: AbCip and FOCAS browse a live backend but implement no
IRediscoverable, so before this they had no change signal at all. A periodic
compare is the only way to notice a PLC re-download.

A finding that changed the design: FOCAS, TwinCAT and AbCip all re-emit their
authored tags into the same DiscoverAsync stream as device-derived ones, so
the browse picker can show an operator their existing tags. Discovered is
therefore always a superset of authored, and a VANISHED tag can never appear
missing — one whole direction is structurally undetectable for three of the
four. Shipping a Vanished list that is permanently empty for them would have
been the half-inert seam this whole exercise removes. So the driver declares
DiscoveryStreamIncludesAuthoredTags, the detector does not compute the
undetectable half, and the operator message says "missing-tag detection
unavailable for this driver" rather than letting the absence of a missing-tag
clause read as reassurance. MTConnect is the only driver where both directions
work — its stream is purely probe-model-derived.

Behaviour: a failed browse is not drift (an unreachable device would otherwise
report every authored tag as vanished); a truncated capture is skipped for the
same reason; an unchanged drift is reported once rather than re-stamping its
timestamp; drift that resolves clears the prompt. Interval defaults to 5
minutes — it browses a real device, and a tag set changing is an engineering
event, not a runtime one. It reuses the Stage-2 surfacing, raising the same
/hosts re-browse prompt, and never rebuilds the served address space.

Comparison logic is a pure, separately-tested type rather than actor-inline.
14 new tests. The gate was verified load-bearing by deleting the
SupportsOnlineDiscovery half: the tautology-driver test goes red, and it
asserts discovery was never invoked rather than merely "no prompt raised",
which would have passed for the wrong reason if the timer never fired.

Full suite green except the same three pre-existing fixture-gated integration
suites, identical counts.
2026-07-28 00:48:39 -04:00
Joseph Doherty 6a01358b9a fix(adminui): guard the driver dispatch maps and close G-1..G-6 (§8.4)
A parity guard already existed for DriverTypeNames <-> the /raw driver picker,
but not for the two dispatch maps downstream, so a driver could be registered,
offered in the picker, and then have no config form. That is exactly what
happened to Calculation (G-1) and to Sql/MTConnect/Calculation on the device
modal (G-2) — both survived review because nothing could see them.

The maps had to become data first. A Razor @switch compiles into
BuildRenderTree's IL, so no test can enumerate its cases; the picker guard
works only because RawDriverTypeDialog keeps its data in a field the markup
enumerates. Both modals now render from DriverConfigFormMap / DeviceFormMap
through <DynamicComponent>, and being public those maps need none of the
picker test's BindingFlags.NonPublic fragility.

- G-1 CalculationDriverForm.razor — RunTimeout was unauthorable via the UI.
- G-2 Sql/MTConnect/Calculation declared single-connection rather than given
  hollow device forms; each holds one connection at the driver level.
- G-3 DriverConfigModal's hardcoded "Galaxy or Mqtt" -> IsSingleConnection, so
  Sql/MTConnect authors are no longer sent to a device form with no endpoint.
- G-4 DriverFormMapParityTests (5, both directions) + DriverDispatchMapParityTests.
- G-5 CsvColumnMap entries for Sql, Mqtt, MTConnect.
- G-6 RawBrowseCommitMapper Sql branch — and the browser end, which the audit
  missed: SqlBrowseSession emitted NO AddressFields, so a browsed leaf carried
  only a column name, and a column alone cannot address a Sql tag. It now
  travels schema/table/column and the mapper builds a WideRow config from them.
  A branch alone would have produced a half-built blob.

Two findings while writing the guards. The G-6 test showed Modbus and
Calculation also hit the generic address fallback — correctly, as neither is
browsable — so it asserts the fall-through set EQUALS a documented
non-browsable list in both directions; a one-way check would let a newly
browsable driver be quietly added to the exclusion list. And
TagConfigDriverTypeNameGuardTests was hollow: it enumerated a hand-written
TheoryData that had already drifted (omitting Galaxy, Sql and Mqtt), guarding
renames but not gaps. Now enumerated from the map with a coverage test facing
the other way.

Live-verified on docker-dev, since this repo has no bUnit and no unit test
reaches Blazor parameter binding: opened Calculation's config (previously "No
typed config form"), typed 3500, saved, reopened — the value persisted, so the
DynamicComponent two-way binding round-trips. Sql's form renders fully and now
reads "This driver holds a single connection, authored above".

AdminUI.Tests 930 passed.
2026-07-27 19:52:02 -04:00
Joseph Doherty d32d89c340 fix(drivers): stop silently discarding driver config edits (§8.3, #516)
Five drivers ignored the config handed to them on reinitialize, serving the
options their constructor captured — and the deployment sealed green anyway.
Fixed on both halves, as chosen.

Seam (load-bearing): DriverSpawnPlanner routes a changed DriverConfig to
ToStop + ToSpawn instead of an in-place delta, making the factory the single
parse authority. This REVERSES the deliberate decision documented at
DriverSpawnPlan.cs:49-50 ("a pure DriverConfig change stays an in-place delta
— no reconnect"). That reasoning was correct about the resilience pipeline and
wrong about the driver. The accepted price is a reconnect per config edit.

Per-driver, and this split was not anticipated:
- Re-parse in place — Modbus, AbLegacy, OpcUaClient. ParseOptions extracted
  from each factory, called from InitializeAsync behind a HasConfigBody guard
  so "{}" still keeps the constructor options.
- Respawn-only, deliberately NOT re-parsed — Sql and FOCAS. Each builds more
  than options from config (Sql's dialect + resolved connection string,
  FOCAS's client-factory backend, both injected at construction), so adopting
  new options alone would run a NEW tag set against an OLD connection. Half a
  re-parse is worse than none. SqlDriver's doc-comment asserted the opposite
  premise — "config parsing belongs to the factory, which builds a fresh
  instance" — which was false when written and is true only now.

Two green seals removed from ApplyChildDelta: it overwrote the cached Spec
synchronously BEFORE the child dequeued the message, so the host believed the
new config was live and the next reconcile computed no delta, sealing the
drift permanently; and it Tell'd with no Receive<ApplyResult> registered, so a
failed reinit — including Galaxy's deliberate NotSupportedException —
dead-lettered.

Exposed (not created) by the change: a factory throw is a CONFIG error, and
SpawnChild catches it and silently substitutes a stub. Only a brand-new driver
could reach that before; an ordinary config edit can now. Raised Warning ->
Error with an actionable message. It still does not fail the deployment —
doing so would let one malformed driver block a fleet deploy, so that is a
follow-up rather than a drive-by.

Tests: every pre-existing reinit test in these suites passes "{}", the exact
input a guarded re-parser treats as "keep constructor options" — blind to this
defect by construction. New tests pass CHANGED json; the Modbus one was
verified falsifiable by deleting the re-parse (goes red). Two tests asserted
the old behaviour and were rewritten, including the positive control in
DriverHostActorUnreadableArtifactTests, whose observable moved from
UnsubscribeAsync to ShutdownAsync now that teardown happens by stopping the
child rather than emptying its desired set.

Remaining full-suite failures are pre-existing and environmental, verified
identical on the pre-change tree: Host.IntegrationTests (3) and
Driver.AbLegacy.IntegrationTests (4, docker fixture-gated).
2026-07-27 19:32:46 -04:00
Joseph Doherty adce27e7fa refactor(drivers): delete the dead discovered-node injection path (§8.2, #507)
#507 was filed as "injection inert in v3, re-migrate onto the raw subtree".
Reading it, the retained code is not revivable: it resolves equipment from
EquipmentNode.DriverInstanceId UNION EquipmentTags, and BOTH are structurally
empty in v3 (AddressSpaceComposer always constructs EquipmentNode with a null
DriverInstanceId; DeploymentArtifact hard-codes an empty EquipmentTags set).
Removing the guard would have changed a log line and injected nothing. So it
is deleted rather than fixed, and #507 closes as superseded by /raw
browse-commit.

Removed: HandleDiscoveredNodes, PartitionDiscoveredByDeviceHost,
ShouldWarnPartition, PlansRoutingEqual, ApplyDiscoveredPlansForDriver,
_discoveredByDriver, the redeploy re-inject tail, DiscoveredNodeMapper,
DiscoveredInjection, AddressSpaceApplier.MaterialiseDiscoveredNodes,
OpcUaPublishActor.MaterialiseDiscoveredNodes, and the Runtime-local copies of
CapturingAddressSpaceBuilder/DiscoveredNode.

The connect-time discovery loop goes too (StartDiscovery, RediscoverTick,
HandleRediscoverAsync, DiscoveredNodesReady, TriggerRediscovery). With
injection gone it had no consumer, and leaving it would either dead-letter or
keep browsing real devices up to ~15x per connect to drop the result.
ITagDiscovery itself stays — the /raw browse picker drives it through
Commons/Browsing/DiscoveryDriverBrowser, which never went through the actor,
so the picker is unaffected.

deferment.md §4.4 called the 18 DiscoveryInjectionDormantV3 tests "Real —
blocked on #507". They are not: they assert an equipment-rooted graft
(EquipmentRootNodeId == "EQ-1") that v3 cannot produce, so they could never
have unskipped as written. Deleted along with DiscoveredNodeMapperTests, the
CapturingAddressSpaceBuilder tests, and the MaterialiseDiscoveredNodes tests
in AddressSpaceApplierTests/OpcUaPublishActorTests. Runtime.Tests skipped:
31 -> 13.

IHostConnectivityProbe is deliberately NOT resolved here. GetHostStatuses()
has no production call site and nothing writes a DriverHostStatus row, but the
table was re-created in the v3 initial migration, so deleting on inference
would be wrong. Split to Gitea #521 with both options costed.

CLAUDE.md, docs/drivers/{Galaxy,TwinCAT,MTConnect}.md updated — they described
the seam as dead.

Build clean; Runtime.Tests 476 passed / 13 skipped; OpcUaServer.Tests 362
passed / 4 skipped.
2026-07-27 18:57:09 -04:00
Joseph Doherty 09a401b881 feat(drivers): consume IRediscoverable as an operator re-browse prompt (§8.2, #518)
Nine drivers raise IRediscoverable.OnRediscoveryNeeded when they observe that
a remote's tag set may have changed — a Galaxy redeploy, a TwinCAT
symbol-version bump, an MTConnect agent restart, a Sparkplug rebirth. Nothing
in src/ subscribed, so every raise went into the void. Drivers even wrap the
invoke in try/catch for "subscriber threw"; there has never been a subscriber.

DriverInstanceActor now attaches the event in PreStart and detaches in
PostStop, mirroring AttachAlarmSource/DetachAlarmSource. Attach is per-actor,
not per-connect: the raise has no connection affinity and can land while the
driver is between connects. The detach is load-bearing rather than tidy — the
IDriver instance outlives the actor when the host respawns a child around the
same driver object, so a missing -= accumulates one handler per respawn, each
holding a dead Self.

The signal rides the existing driver-health snapshot to /hosts as a
"re-browse" chip. It is ADVISORY: the served address space is deliberately not
rebuilt, because v3 authors raw tags explicitly through the /raw
browse-commit flow and a runtime graft would materialise nodes no operator
approved and no deployment artifact records.

Two things worth knowing:

- PublishHealthSnapshot dedups on a health fingerprint, and a rediscovery
  raise on an otherwise-healthy driver changes none of the four fields it
  hashed. Without adding the timestamp to that tuple the dedup swallows the
  exact publish carrying the signal. Reverting that one line turns 3 of the 5
  new tests red, which is how it was confirmed rather than assumed.
- The new test stub implements IDriver from scratch instead of deriving from
  the shared StubDriver, whose GetHealth() returns DateTime.UtcNow — its
  fingerprint differs on every call, so the dedup never engages and the dedup
  test would have passed vacuously either way.

The planned discovery-result drift detector was NOT built. Modbus, S7, MQTT,
AbLegacy and Sql all echo authored config from DiscoverAsync rather than
browsing the device, so a discovered-vs-authored diff is permanently empty for
them — it would have been another plausible-looking inert seam, which is the
class this audit exists to remove. IRediscoverable is the trustworthy signal
because the driver asserts it deliberately.

DriverHealthChanged, IDriverHealthPublisher.Publish and HostsDriverRow gain
defaulted optional parameters, so no existing call site changed. telemetry.proto
gains fields 8/9 and both Phase-5 mappers carry them.

Runtime.Tests 512 passed / 31 skipped.
2026-07-27 18:47:34 -04:00
Joseph Doherty 9227d03ca8 feat(mtconnect): make an MTConnect driver creatable + configurable in /raw (Task 18 Part B)
An MTConnect driver instance could not be authored at all: RawDriverTypeDialog
(the only DriverInstance creation surface) offered a hardcoded 9-entry list
without it, and DriverConfigModal's default: branch renders a warning with no
raw-JSON fallback — so even a hand-inserted row could not be configured and
DriverConfig stayed "{}", on which ParseOptions throws "missing required
AgentUri".

Adds the typed MTConnectDriverForm (the consistent sibling pattern) covering
agentUri / deviceName / the four polling knobs / probe / reconnect, wires the
dispatch case, and offers the type in the dialog.

- All decisions live in the static MTConnectDriverForm.BuildConfigJson +
  MTConnectFormModel (plain C#), because this project has no bUnit.
- The wire shape mirrors the driver's private MTConnectDriverConfigDto, NOT
  MTConnectDriverOptions: the latter's TimeSpan probe knobs would serialise as
  "00:00:05" and never bind to the driver's integer intervalMs.
- arch-review 01/S-6: a non-positive timing knob is REMOVED from the document
  rather than written, so ParseOptions substitutes the driver's own positive
  default instead of the driver faulting at Initialize on RequirePositive.
  Removal (not just skipping) also stops a stale positive value surviving and
  disagreeing with what the form shows.
- Unknown top-level keys survive a load/save, so the driver's hand-authored
  tags[] surface is not silently deleted by opening the form.
- _jsonOpts carries JsonStringEnumConverter, satisfying the
  DriverPageJsonConverterTests fleet guard properly rather than by exemption.

New RawDriverTypeDialogCoverageTests resolves the offered set through
DriverTypeNames.All, so the next registered driver fails here until the dialog
offers it.
2026-07-27 13:58:32 -04:00
Joseph Doherty 115a43dd47 feat(mtconnect): typed AdminUI tag-config editor + browse round-trip (Task 18 Part A)
Registers the MTConnect typed tag editor in TagConfigEditorMap /
TagConfigValidator (keyed off DriverTypeNames.MTConnect, never a literal) and
adds the razor shell over Task 17's MTConnectTagConfigModel.

The shell stays trivial: the /probe-sourced mtCategory/mtType/mtSubType/units
row is rendered disabled + readonly with NO binding of any kind, and no
inferred-type hint is shown — MTConnectDataTypeInference.Infer() also keys on
the DataItem `representation`, which the tag-config model does not carry, so
calling it here would agree with the browse picker for ordinary items and
silently disagree for exactly the DATA_SET/TABLE/TIME_SERIES ones.

Also fixes the picker -> editor round trip, which was broken in both
directions:

- RawBrowseCommitMapper.BuildTagConfig had no MTConnect branch, so a committed
  tag landed as the generic {"address": "<dataItemId>"} while the model read
  only `fullName`. The data plane kept working (the driver accepts all three id
  spellings), so the only symptom was an empty DataItem-id field in the editor
  — and saving from that state stamped fullName:"" over the tag.
- MTConnectTagConfigModel.FromJson now accepts dataItemId/address as fallbacks
  (fixing tags committed before this change) and ToJson normalises onto
  `fullName`, dropping the aliases so the two spellings cannot drift.
2026-07-27 13:58:19 -04:00
Joseph Doherty b0046d6959 feat(mtconnect): typed AdminUI tag-config model (Task 17)
MTConnectTagConfigModel: pure FromJson/ToJson/Validate for the MTConnect
tag TagConfig JSON blob, mirroring ModbusTagConfigModel/OpcUaClientTagConfigModel.
Fields: fullName (DataItem@id, required), dataType (DriverDataType override,
written as an enum name string), mtCategory/mtType/mtSubType/units (probe
metadata), mtDevice/mtComponent (author context). Preserves unknown JSON
keys across load->save (isHistorized/historianTagname and anything else).

Guards against the enum-serialization trap (numeric dataType would fault the
driver at deploy) both on write (always TagConfigJson.Set via enum name) and
on read (Validate() rejects a dataType that was stored as a bare digit
string, since Enum.TryParse silently accepts numeric text).

AdminUI.csproj gains a ProjectReference to Driver.MTConnect.Contracts,
matching the existing POCO-only driver-Contracts pattern used by the other
six typed tag editors.

Scope: pure model only (Task 17). The razor editor shell + TagConfigEditorMap/
TagConfigValidator registration is Task 18.
2026-07-27 13:58:06 -04:00
Joseph Doherty a107a1a8b9 feat(mtconnect): host registration + DriverTypeNames const + guard parity (Task 16)
Register the MTConnect factory + probe with the Host, add the
DriverTypeNames.MTConnect constant, and keep DriverTypeNamesGuardTests green.

- DriverTypeNames: new MTConnect const + appended to All.
- DriverFactoryBootstrap: MTConnectDriverFactoryExtensions.Register in
  Register(...) at the default Tier A (managed HttpClient/XML, in-process;
  Tier C is the only tier arming process-recycle, wrong here), and
  TryAddEnumerable(IDriverProbe -> MTConnectDriverProbe) in
  AddOtOpcUaDriverProbes so the probe reaches admin-only nodes (the
  admin-pinned Test-Connect singleton) without double-registering on a
  fused admin,driver node.
- Host.csproj: ProjectReference to Driver.MTConnect (required to compile
  the Register call).
- Core.Abstractions.Tests.csproj: ProjectReference to Driver.MTConnect so
  the guard's bin scan discovers the factory. This and the constant MUST
  land together -- verified RED (2/4 facts) with the constant alone.
- DriverProbeRegistrationTests: MTConnect added to AdminUiDriverTypeKeys;
  its idempotency fact asserts distinct-probe-count and goes RED without
  this (and RED if TryAddEnumerable is downgraded to AddSingleton).

Reconciles all four "MTConnect" literals onto the one constant: the
factory's DriverTypeName, MTConnectDriver.DriverType, and
MTConnectDriverProbe.DriverType now all alias DriverTypeNames.MTConnect
(no circular reference -- Core.Abstractions is a leaf both driver
projects already reference). This is the repo's TwinCat/Focas anti-drift
convention.
2026-07-27 13:58:06 -04:00
Joseph Doherty c3a2b0f773 Merge branch 'feat/mqtt-sparkplug-driver'
v2-ci / build (push) Successful in 5m36s
v2-ci / unit-tests (push) Failing after 22m40s
# Conflicts:
#	src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/DriverTypeNames.cs
#	src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Drivers/DriverConfigModal.razor
#	src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/EndpointRouteBuilderExtensions.cs
#	src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/TagEditors/TagConfigEditorMap.cs
#	src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/TagEditors/TagConfigValidator.cs
#	src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/ZB.MOM.WW.OtOpcUa.AdminUI.csproj
#	src/Server/ZB.MOM.WW.OtOpcUa.Host/Drivers/DriverFactoryBootstrap.cs
2026-07-27 13:31:39 -04:00
Joseph Doherty 123ddc3f40 fix(scripteditor): complete + hover absolute RawPaths (#490)
v2-ci / build (push) Successful in 4m25s
v2-ci / unit-tests (push) Failing after 14m58s
The issue reports a missing feature. The cause is a stale projection, and the
consequence was worse than the gap described.

`ScriptTagCatalog` still emitted `Tag.TagConfig.FullName` — the pre-v3 driver wire
address. Since v3 the mux key is the **RawPath**: `AddressSpaceComposer` harvests the
`ctx.GetTag("…")` literals into `DependencyRefs`, those become `VirtualTagActor`
dependency refs registered with `DependencyMuxActor`, whose `_byRef` is keyed Ordinal
by `AttributeValuePublished.FullReference` — and a driver's wire ref IS the RawPath
(`DriverHostActor._nodeIdByDriverRef` is keyed `(DriverInstanceId, RawPath)`). The
`{{equip}}/<RefName>` form already substitutes to RawPaths at both compose seams.

So the catalog was wrong in BOTH directions, not merely incomplete: completion
offered paths that could never resolve at runtime, while a CORRECT absolute RawPath
got no completion and hovered as "not a known configured tag path". The file's own
comment admitted the raw/UNS catalog was left for "Batch 2/3" and it never came.

Now projected through the shared `RawPathResolver` — the same byte-parity authority
`DraftValidator` and `AddressSpaceComposer` use — so a suggested path is identical to
the one the deploy gate and the runtime compute. A tag with a broken ancestry chain
resolves to null and is omitted: the runtime could not route it either, so offering
it would be a lie. Hover additionally gains the owning `DriverInstanceId`, which the
topology now makes available (it was always null before).

Editor-accepts <=> publish-accepts is preserved: no diagnostic keys off this catalog
(`OTSCRIPT_EQUIPREF` only marks `{{equip}}` paths), so this changes completion and
hover only — it cannot newly reject a script.

The existing tests pinned the v2 contract and were re-authored: a RawPath only exists
if the RawFolder -> DriverInstance -> Device -> TagGroup -> Tag chain does, so the
seed now builds one. Added coverage for group-nested paths, a driver at the cluster
root (no folder segment), a broken chain being omitted rather than guessed, and the
pre-v3 FullName no longer resolving.

Live-gated on docker-dev (rig rebuilt, both central nodes):
- completion, empty literal -> every RawPath incl. group-nested
  `opcua1/plc/OpcPlc/Telemetry/Basic/AlternatingBoolean`
- completion, prefix `pymod` -> `pymodbus/plc/HR200X`, `pymodbus/plc/ImportedTag`
- hover `pymodbus/plc/HR200X` -> "Tag · Type UInt16 · Driver MAIN-modbus"
- hover an unknown path -> "Not a known configured tag path"

AdminUI 742/742; script-analysis 55/55; solution builds 0 errors.
2026-07-26 11:08:11 -04:00
Joseph Doherty 0f38f48679 merge: Modbus RTU-over-TCP transport (#495)
Wave 1 of the driver-expansion program. The branch was complete and live-gated but
had never been merged; it sat 15 commits ahead and 50 behind master.

Purely additive behind the existing IModbusTransport seam — the application protocol
(function codes, codecs, planner, coalescing, write path, probe, materialisation,
HistoryRead) is identical across TCP and RTU; only the wire framing differs
([addr][PDU][CRC-16], no MBAP, no TxId). Zero changes to codecs/planner/health.

Selected by a new Transport config field (ModbusTransportMode: Tcp | RtuOverTcp),
routed through ModbusTransportFactory (throws on unknown mode), with the string-enum
guard on options/DTO/factory and a Transport selector on the AdminUI Modbus form.
ModbusSocketLifecycle was extracted from ModbusTcpTransport (behaviour-preserving)
and is composed by both transports.

Descoped by design: direct-serial (System.IO.Ports) and Modbus ASCII — RTU buses are
reached exclusively via a serial->Ethernet gateway. No per-tag config changes; the
existing per-tag UnitId already makes a multi-drop bus work.

Re-validated against current master at merge time (the branch's own gate predates 50
commits of master): no overlapping files, clean merge, solution builds 0 errors, and
Modbus 344/344, Modbus.Addressing 161/161, AdminUI 740/740, Runtime 507/507,
Configuration 131/131 all pass. Confirmed the Transport selector is still reachable
through master's current authoring path (DriverConfigModal -> ModbusDriverForm), so
the branch's live /run gate result still applies.
2026-07-26 10:58:51 -04:00
Joseph Doherty 4b9bcddbcc feat(drivers): periodic reconcile of desired vs actual subscriptions (#488)
Option A from the issue — the cheap consistency check, no interface change.

The desired ref set was re-applied on a Connected TRANSITION (`ResubscribeDesired`)
and on a deploy's `SetDesiredSubscriptions`, and nowhere else. A subscription lost
while the driver STAYED Connected — a subscribe that failed and was never retried,
a handle dropped down an error path — left the actor subscribed to nothing while
still reporting Healthy, indefinitely.

`ReconcileSubscription` now rides the existing 30 s `health-poll` tick: while
Connected, a driver holding a desired set but no live handle is re-subscribed.

Gated on `ISubscribable`. A driver that cannot subscribe at all can still be handed
a desired set, and without the guard it would be told `Subscribe` every tick and
fail every tick, forever.

This is a state-machine consistency check, NOT a probe — it can only see that this
actor holds no handle, never that a handle is present but dead server-side, because
`ISubscriptionHandle` is opaque. That is option B, and it stays deferred until a
real occurrence shows the handle outliving the subscription; it would need a
liveness member implemented across all eight drivers with different subscription
mechanics.

A redundant `Subscribe` is possible (a tick queued ahead of an already-queued one
observes the same no-handle state) and is harmless: `HandleSubscribeAsync` is a
`ReceiveAsync`, so no tick is processed mid-subscribe, and it drops any prior
subscription before establishing the new one. Suppressing it would need a
pending-subscribe flag threaded through every self-tell site — more state than the
race is worth.

`healthPollInterval` becomes an optional Props parameter, mirroring the existing
`rediscoverInterval` seam, so a test can drive the reconcile without waiting 30 s.

Three tests. The reconcile itself is proven by a stub whose FIRST subscribe throws:
nothing else would ever retry it, so a second attempt can only come from the
reconcile — disabling `ReconcileSubscription` turns it red. The two guard tests are
absence assertions and are bounded by a positive control rather than a sleep: a
counting health publisher makes ticks PROCESSED observable, so "still one subscribe"
means the reconcile ran and declined, not that the timer had not fired.

Explicitly not deploy-time drift (#486) — re-asserting an already-correct desired
set would not have helped there.
2026-07-26 10:30:19 -04:00
Joseph Doherty 240d7aa8aa fix(test): give the three absence assertions a positive control (#501)
`AwaitAssert` returns on its FIRST success, so an assertion that is already true at
t=0 passes instantly and spends none of its duration. All three sites asserted an
absence against a collection that starts empty, so none of them ever gave the
handler the time their comments claimed.

Replaced with mailbox-ordering positive controls rather than sleeps:

- `RouteNativeAlarmAck_unknown_node_is_dropped` — follow the unmapped ack with a
  MAPPED one. The host forwards via `Tell` and the child handles `RouteAlarmAck`
  with `ReceiveAsync` (which suspends its own mailbox), so once the control reaches
  the driver the unmapped one has provably been handled.
- `RouteNativeAlarmAck_on_non_primary_is_dropped` — the role itself is the control:
  return the node to Primary and re-send. Comments (`gated` / `control`) are the
  discriminator, so a leaked ack is visible rather than merged into a count.
- `PeerProbeSupervisorTests.Single_node_snapshot_spawns_no_children` — a FOURTH site
  the issue did not list. It says the other `ChildCount.ShouldBe(0)` waits are each
  preceded by a `ShouldBe(1)`; that is true of three of the four, but not this one,
  which asserts the initial state. Now followed by a two-node snapshot: the count
  reaching 1 proves the single-node snapshot was processed, and a local-node child
  would have made it 2.

The issue warned these may turn red, which would be a real defect surfacing. They
did not — the routing is correct. Proven by breaking it deliberately instead:
disabling the Primary gate reddens the Secondary test, and routing unmapped ids to
an arbitrary mapping reddens the unknown-node test. Under the old form both breaks
passed.
2026-07-26 10:29:41 -04:00
Joseph Doherty 47d148daf9 fix(adminui): never slice a DB-sourced string with the range operator (#504)
`Scripts.razor` rendered a hash prefix as `@s.SourceHash[..12]…`. `SourceHash`
is a plain nvarchar(64) with no length floor, so any value shorter than 12
characters threw ArgumentOutOfRangeException out of BuildRenderTree — unhandled
in Blazor, which takes the WHOLE page to an HTTP 500, not just the offending
row. Live-reproduced on docker-dev, where two Script rows carry `h1` and
`h-abs-hr200`: /scripts was a hard 500.

New `Components/Shared/DisplayText.Abbreviate(string?, int)`:
- null/blank renders the Admin UI's em-dash placeholder rather than throwing;
- a value already within budget renders verbatim with NO ellipsis, so the
  display never implies text that isn't there (the old markup appended "…"
  unconditionally, outside the slice — `h1` would have shown as `h1…`);
- a maxLength < 1 is clamped, so a display bug cannot become a page crash.

Applied to every unguarded range-operator slice over a DB-sourced string found
by sweeping the AdminUI for `[..N]`:

  Scripts.razor                    SourceHash    (the reported crash)
  Certificates.razor               Thumbprint    (read off the on-disk store)
  Deployments.razor  x2            RevisionHash
  Clusters/ClusterOverview.razor   RevisionHash

The other `[..N]` hits are safe and untouched: Guid.ToString("N") slices
(always 32 chars) and the `Length > 60 ? [..60]` ternaries that self-guard.

NOTE — the issue text blamed the docker-dev seed; that was wrong and is
corrected on #504. `seed-clusters.sql` inserts only ServerCluster, ClusterNode
and LdapGroupRoleMapping. The short-hash rows came from earlier live-gate
authoring. A freshly seeded rig is fine; the trigger is any Script row that did
not go through ScriptEdit / UnsTreeService.HashSource — REST-API authored,
hand-inserted, or migrated in.

Tests: 14 new in DisplayTextTests, covering the short/null/blank/clamped cases
and a never-throws sweep over every value x budget combination. AdminUI suite
739/739.

Live-verified on docker-dev (AdminUI has no bUnit): /scripts 500 -> 200 across
both central nodes, rendering `hash=h1` and `hash=h-abs-hr200` in full;
/deployments still truncates 64-char hashes at 12 with the ellipsis;
/certificates and /clusters/MAIN unchanged.
2026-07-26 09:43:48 -04:00
Joseph Doherty 549c656489 fix(alarms): re-assert non-normal scripted-alarm conditions after a (re)load (#487)
A deploy that triggers a FULL address-space rebuild clears `_alarmConditions`
and re-materialises every condition node fresh — inactive, acked, confirmed,
unshelved. The engine reloads its persisted state and re-derives Active from the
predicate, so it ends up correct; but there is no transition to report, so
`LoadAsync` yields `EmissionKind.None` and `OnEngineEmission` drops it. Nothing
writes the node.

Live-reproduced on the docker-dev rig against the pre-fix image: an alarm that
had fired and cleared but was still UNACKNOWLEDGED came back from a rebuild
reporting Acknowledged with Retain=false — so it disappeared from
ConditionRefresh entirely, while the engine still held Unacknowledged. An
operator's outstanding alarm silently vanishes from the alarm list on deploy.

`ScriptedAlarmHostActor.ReassertConditionNodes` closes it. After each load it
reads the new `ScriptedAlarmEngine.GetProjections()` and sends one
`AlarmStateUpdate` per alarm NOT in the Part 9 no-event position.

Load-bearing properties:

- Node-only. It sends `AlarmStateUpdate` and nothing else — never the `alerts`
  topic, never the telemetry hub. `alerts` is the historization path, so a row
  per alarm per deploy would append a duplicate historian/AVEVA record every
  time anyone deploys. This is why it reads a projection rather than re-emitting:
  `ScriptedAlarmProjection` carries no `EmissionKind`, so there is nothing for
  the emission machinery — or a future refactor — to mistake for a transition.
  The issue's sketch said `GetState(alarmId)` + `LoadedAlarmIds`; that alone
  would have clobbered the node's severity and message, so the projection also
  carries the definition's severity, the resolved message template, and the
  last-observed worst-input quality.
- Only non-normal alarms. One in the no-event position already matches what the
  materialise built, so a never-fired alarm stays byte-identical to a deploy
  without this pass (including its Message, which the materialise seeds with the
  display name), and an all-normal deploy writes nothing at all.
- Timestamp is the condition's own `LastTransitionUtc`, not the deploy instant.
- No duplicate Part 9 events: `WriteAlarmCondition`'s delta-gate compares against
  the node's CURRENT state, so a re-assert onto a freshly materialised node is a
  genuine delta (fires once — correct, the rebuild reset what clients see) while
  one onto a surgically-preserved node is suppressed.

Tests: 6 new host tests + 6 new engine tests. Falsifiability checked by
disabling the call — 4 of the 6 host tests go red; the other 2 are absence
guards against an over-broad fix and pass either way by design.

Live gate (docker-dev, central-2, pre-fix image vs. rebuilt image):
- pre-fix: condition absent from ConditionRefresh after a rebuild;
- post-fix: present, Unacknowledged, Retain=True, stamped with its own
  LastTransitionUtc rather than the restart instant;
- /alerts stayed empty across two re-asserts, with the panel proven live by a
  real ACTIVATED transition immediately afterwards — no duplicate history.
2026-07-26 09:06:39 -04:00
Joseph Doherty 154171f48c test(runtime): fix the intermittent Runtime.Tests failure — 4 ordering/logic defects + the presence-budget class (#500)
The reported symptom was "Runtime.Tests occasionally reports Failed: 1" with no test
name. Instrumenting 30 full-assembly runs reproduced it at 13% (4 runs) and showed it
was never ONE flaky test: five failures across three distinct tests in that batch, and
five more distinct tests over the verification rounds that followed.

Two hypotheses were tested and DISPROVED by measurement before anything was changed:

- Cluster-formation timeout. Every test in this assembly forms a real single-node Akka
  cluster over TCP in RuntimeActorTestBase's constructor and waits 5 s for MemberStatus.Up
  — 219 formations per run. Instrumented: idle max 960 ms, under-load max 1470 ms, zero
  timeouts. A 3.4x margin; not the cause.
- Ephemeral-port exhaustion from that bind churn. TIME_WAIT measured at ~0 throughout.
  Not the cause.

FOUR GENUINE ORDERING/LOGIC DEFECTS (none is a timeout):

1. VirtualTagHostActorTests.ApplyVirtualTags_respawns_child_when_plan_changes_in_place
   The test loops to accept RegisterInterest/UnregisterInterest in EITHER order — and
   then asserts on mux.LastSender, which DEPENDS on that order. Under the [Register,
   Unregister] interleaving LastSender is the DYING child and the assertion fails. Now
   captures the sender of the Register message as it arrives. Fully deterministic; no
   timing involved. (Swept the other four LastSender sites: all drain the Unregister
   first, so their ordering is fixed. Only this one was unsafe.)

2. DriverHostActorWriteRoutingTests.Primary_routes_write_via_uns_nodeid_to_driver_by_rawpath
   ApplyAck marks the end of the APPLY, not the point a write can succeed: the child is
   still in Connecting, which deliberately fast-fails writes ("driver not connected"),
   and the NodeId->driver reverse map has not been pushed. Now retries until accepted.
   This does not weaken the assertion — every rejection branch replies WITHOUT reaching
   the driver, so Writes.Count.ShouldBe(1) still means exactly what it did.

3. HistorianAdapterActorTests.Redundancy_snapshot_without_local_node_...
   One 500 ms constant served both presence budgets (AwaitAssert) and absence windows
   (ExpectNoMsg). Different quantities that happened to share a number, so the presence
   budget could not be raised without slowing every absence check. Split into
   AssertTimeout (5 s) and Settle (500 ms).

4. ContinuousHistorizationRecorderTests.Retry_after_writer_failure_eventually_acks
   Waited on `outbox == 0`, which is ALSO true before the first append — so the poll
   could win the race against the recorder and return having observed the INITIAL state,
   after which the CallCount>=2 check outside the block failed against a recorder that
   had not run. Both conditions are now polled together with the retry count as the
   discriminator. (The preceding test in the same file documents this exact trap.)

THE PRESENCE-BUDGET CLASS:

After those four, three consecutive 30-run rounds each still failed once — on a
DIFFERENT test, in a DIFFERENT file, every time (OpcUaPublishActorApplyFailureTests 2 s,
OpcUaPublishActorRebuildTests 2 s, OpcUaPublishActorTests 500 ms). That is a
distribution, not a defect, and fixing it one test at a time was the wrong method.

RuntimeActorTestBase now carries a documented PresenceBudget (15 s) and 57 sub-3 s
AwaitAssert/AwaitCondition durations across four files route through it.

Why this is safe rather than sloppy: a presence budget is an upper bound before giving
up, not a wait — these helpers poll and return the instant the condition holds. Raising
one costs nothing on the happy path and CANNOT make a genuinely failing assertion pass;
it only changes how quickly a real breakage reports. Absence windows are the opposite
(the elapsed time IS the assertion) and were deliberately left untouched with their own
short, individually-calibrated literals.

ScriptedAlarmHostActorTests is a special case, diagnosed rather than merely raised: its
8 s budget was sized for message passing but actually waits on a REAL Roslyn compile
(ApplyScriptedAlarms -> ScriptedAlarmEngine.LoadAsync compiles every predicate). Cold
script compiles are the slowest and most variable thing in the assembly, so that class
gets 30 s with the reason recorded.

Verification: 30 consecutive full-assembly runs, 30 passed / 0 failed, against a 13%
baseline. Full solution builds; all 41 unit-test projects green.

NOT fixed here, filed as #501: DriverHostActorNativeAlarmAckRoutingTests:90 and :116 use
AwaitAssert for an ABSENCE assertion, so they return instantly and prove nothing. They
are excluded from the budget change on purpose — a bigger number does not fix them, and
rewriting them to settle-then-assert may legitimately turn them red.
2026-07-25 20:20:06 -04:00
Joseph Doherty b95b99ba8e fix(drivers): correct 16 wrong OPC UA status-code constants + guard them by reflection (#497)
Every value verified against Opc.Ua.StatusCodes in the pinned SDK (1.5.378.106) by
reflection, not by copying siblings. All are client-visible: OPC UA clients branch on
status.

The three named in #497:
  - Historian.Gateway SampleMapper "BadNoData"  0x800E0000 -> 0x809B0000
    (0x800E0000 is BadServerHalted)
  - Galaxy "BadTimeout"                         0x800B0000 -> 0x800A0000
    (0x800B0000 is BadServiceUnsupported)
  - TwinCAT BadTypeMismatch                     0x80730000 -> 0x80740000
    (0x80730000 is BadWriteNotSupported)

BadTypeMismatch was wrong in three MORE drivers the issue did not name — FOCAS,
AbLegacy and AbCip carried the same 0x80730000. Every call site is a
FormatException/InvalidCastException conversion failure, so the name was right and
the value was wrong in all four.

Adding the reflection guard then surfaced nine further defects offline tests had
never checked:
  - Galaxy GoodLocalOverride  0x00D80000 -> 0x00960000  (not a UA code at all)
  - Galaxy UncertainLastUsableValue        0x40A40000 -> 0x40900000
  - Galaxy UncertainSensorNotAccurate      0x408D0000 -> 0x40930000
  - Galaxy UncertainEngineeringUnitsExceeded 0x408E0000 -> 0x40940000
  - Galaxy UncertainSubNormal              0x408F0000 -> 0x40950000
  - TwinCAT BadOutOfService   0x80BE0000 -> 0x808D0000 (was BadProtocolVersionUnsupported)
  - TwinCAT BadInvalidState   0x80350000 -> 0x80AF0000 (was BadAttributeIdInvalid)
  - AbCip/AbLegacy GoodMoreData 0x00A70000 -> 0x00A60000 (was GoodCommunicationEvent)
  - Historian.Gateway GatewayQualityMapper Good_LocalOverride 0x00D80000 -> 0x00960000

Galaxy's whole Uncertain block read as though the OPC DA quality byte could be
shifted into the UA substatus position; it cannot — the substatuses are an unrelated
enumeration. GatewayQualityMapper already held the correct table, which is what the
Galaxy values are now reconciled against.

Guard: StatusCodeParityTests (Core.Abstractions.Tests, which already project-
references every driver) reflects over every `const uint` in the deployed
ZB.MOM.WW.OtOpcUa.Driver.*.dll whose name reads as a status code, and asserts it
equals Opc.Ua.StatusCodes.<name>. Discovery is by convention, so a new driver
assembly referenced by that project is covered with no edit here. It went red on all
nine defects above before the fixes and now checks 109 constants green.

Because reflection can only see a NAMED constant, two inline literals were hoisted so
the guard can reach them: Galaxy's BadTimeout/Bad into StatusCodeMap, and
GatewayQualityMapper's 15-entry table into a new HistorianStatusCodes. An inline
`0x800B0000u, // BadTimeout` at a call site is exactly how the Galaxy defect survived.

The drivers stay SDK-free by design; only the test project references Opc.Ua.Core,
as the oracle.

Also corrected: tests that pinned the wrong values (Galaxy StatusCodeMapTests,
SampleMapperTests, GatewayQualityMapperTests — all written from the same bad source),
a mislabelled comment in DriverInstanceActorTests, and stale constants in two design
docs, one of them the unexecuted MTConnect driver design that would have propagated
BadNoData's wrong value into a new driver.

The CLI's SnapshotFormatter value->name table was checked against the SDK and is
correct; no change needed.
2026-07-25 15:34:31 -04:00