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fix(high-severity): close 9 of 10 open High findings across 8 modules

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Comm-016: delete dead HandleConnectionStateChanged + _debugSubscriptions /
_inProgressDeployments tracking + ConnectionStateChanged message record.
Disconnect detection is owned by the transport layers (gRPC keepalive PING
~25s; Ask-timeout at CommunicationService). Updates the
Component-Communication.md design doc to make that explicit.

SnF-018: NotificationForwarder.DeliverAsync now discards a corrupt buffered
payload (Warning log + return true) instead of returning false and parking
the row — honoring the design's "notifications do not park" invariant.

DM-018: reconciliation no longer force-sets Enabled, preserving an
intentional Disabled state after central failover.

ESG-018: DeliverBufferedAsync (both ExternalSystemClient + DatabaseGateway)
catches JsonException and returns false, turning a corrupt buffered row
into a parked operation instead of a retry-forever poison message.

InboundAPI-022: register ActiveNodeGate as IActiveNodeGate in the Central
DI branch so standby-node gating is actually wired up in production.

NS-019: remove orphaned NotificationDeliveryService /
INotificationDeliveryService / NotificationResult; central notification
delivery now lives entirely in NotificationOutbox.

SEL-016: normalise From/To filters to UTC before ISO-string compare so
non-UTC DateTimeOffset clients no longer get spuriously excluded events.

TE-017: include Description on attributes/alarms and a HashableConnections
projection (protocol, endpoint JSON, failover count) in the revision hash
and DiffService; staleness detection now catches description-only and
connection-endpoint edits.

Transport-001 and Transport-002 (also High) remain Open — they're being
handled in a follow-up batch because both touch BundleImporter.cs and
must serialise.
This commit is contained in:
Joseph Doherty
2026-05-28 05:40:15 -04:00
parent f936f55f51
commit ac96b83b08
38 changed files with 852 additions and 1729 deletions
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code-reviews/StoreAndForward/findings.md
+11 -1
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@@ -991,9 +991,19 @@ the StoreAndForward-016 replication) — and pass it to `RaiseActivity` (falling
|--|--|
| Severity | High |
| Category | Design-document adherence |
| Status | Open |
| Status | Resolved |
| Location | `src/ScadaLink.StoreAndForward/NotificationForwarder.cs:62`–`:69`, `:105`–`:122`; `src/ScadaLink.StoreAndForward/StoreAndForwardService.cs:369`–`:397` |
**Resolution** — `NotificationForwarder.DeliverAsync` now discards a corrupt
buffered payload instead of returning false. The corrupt path logs a Warning
with the buffered row id + length-capped payload preview via an injected
`ILogger<NotificationForwarder>` (NullLogger by default for back-compat),
then returns true so the S&F engine clears the row via its standard
success-path cleanup — honoring the "notifications do not park" design
invariant. Two regression tests in `NotificationForwarderTests` cover the
two corrupt shapes (invalid JSON, `null` deserialisation) and pin that
nothing is forwarded to central in either case.
**Description**
The Component design doc explicitly carves out notifications from the parking lifecycle: