Commit Graph

10 Commits

Author SHA1 Message Date
Marc Schier dbc09b8e22 Adopt System.TimeProvider across the stack (fixes #2458) (#3829)
# Description

Adopt
[`System.TimeProvider`](https://learn.microsoft.com/dotnet/api/system.timeprovider)
across the stack so that every place that creates timers, runs duration
math, or schedules periodic work is mockable, deterministic in tests,
and immune to wall-clock changes.

The migration touches Core, Core.Types, Server, Client, PubSub,
Configuration, Gds (server + client), Lds, and the Quickstarts/Console
reference apps. Per-component changes follow the same pattern:

1. Add a `private readonly TimeProvider m_timeProvider;` field.
2. Accept a nullable `TimeProvider? timeProvider = null` as the **last**
constructor parameter (new overload; legacy constructor stays for binary
compatibility and delegates with `timeProvider: null`).
3. Initialise the field with `m_timeProvider = timeProvider ??=
TimeProvider.System;`.
4. Replace `new Timer(...)`, `Stopwatch`, `HiResClock.*`,
`DateTime.UtcNow`-based duration math, and `Task.Delay(delay, ct)` in
timing loops with the matching `m_timeProvider` API (`CreateTimer`,
`GetTimestamp` / `GetElapsedTime`, `GetUtcNow().UtcDateTime`,
`Task.Delay(delay, m_timeProvider, ct)`).
5. Wire the provider through DI: `AddOpcUaServerBuilder` /
`AddOpcUaClientBuilder` register `TimeProvider.System` via
`TryAddSingleton<TimeProvider>()` so tests can swap in
`Microsoft.Extensions.Time.Testing.FakeTimeProvider`.

`HiResClock` itself is kept (so the
`ApplicationConfiguration.DisableHiResClock` schema flag still
round-trips), but **every public member** is now `[Obsolete]` with a
single shared message pointing to the new migration-guide section. The
few internal call sites that still need to set/read `HiResClock` are
wrapped with `#pragma warning disable CS0618`.

### Highlights per component

- **Core / Stack** — `Opc.Ua.Core`, `Opc.Ua.Core.Types`, channel
pipeline (`UaSCBinaryClientChannel`, `ChannelToken`,
`UaSCBinaryChannel`), `ApplicationConfiguration`, certificate
validators, `JwksIssuerKeyResolver`, `TimeProviderExtensions` polyfills
(`GetTimestampMilliseconds`, `GetTickCount`,
`CancellationTokenSource(timeout, timeProvider)`, `Task.Delay(delay,
provider, ct)` polyfill for older TFMs).
- **Server** — session lockout, subscription pipeline
(publish/sample/keep-alive/lifetime), `MonitoredItemQueue`, alarm
sampling rate, `IntervalRunner`, server diagnostics, configuration state
machines, hosted services.
- **Client** — `Session`, managed/V2 subscription engines, reconnect
handlers, channel keep-alive, periodic publishing, complex-type
discovery polling.
- **PubSub** — `IntervalRunner` pipeline, message-receive timers,
MQTT/UDP keep-alive, publishers/readers.
- **Gds / Lds** — `LdsServer`, `LinqApplicationsDatabase` expiry
housekeeping, GDS clients (push, pull), `DirectoryCertificateStore`,
`ConnectionStateMachine`, classic subscription engine.
- **Quickstarts / Console samples** — `SampleNodeManager`,
`ReferenceNodeManager`, `AlarmNodeManager`, `BoilerState`,
`MemoryBufferState`, `PublishedValuesWrites`. Samples resolve via
`(Server as ITimeProviderProvider)?.TimeProvider ?? TimeProvider.System`
so existing ctor signatures stay binary-compatible.
- **Tests** — `Opc.Ua.PubSub.Tests` adds `IntervalRunnerTests`; existing
`SubscriptionTests`, `UaPublisherTests`, and `TestDataSystem` move off
`HiResClock`. Added `Microsoft.Extensions.TimeProvider.Testing` package
for `FakeTimeProvider` (project-load warning surfaces on net48/net472
only — runtime is .NET 8+).

### Migration guide

New section [**Time and Timer abstraction
(`TimeProvider`)**](Docs/MigrationGuide.md#time-and-timer-abstraction-timeprovider)
documents:

- The canonical replacement table (`HiResClock.UtcNow` →
`timeProvider.GetUtcNow().UtcDateTime`, `HiResClock.TickCount64` →
`timeProvider.GetTimestamp()`, `new Timer` → `timeProvider.CreateTimer`,
`Task.Delay(delay, ct)` → `Task.Delay(delay, timeProvider, ct)`, …).
- The `TimeProvider? timeProvider = null` + `??=` constructor pattern.
- DI wiring and how to swap in `FakeTimeProvider` in tests.
- Before/after snippets for `HiResClock.TickCount64`,
`HiResClock.UtcNow`, and `new Timer(...)`.

## Related Issues

- Fixes #2458

## Checklist

- [x] I have signed the
[CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf)
and read the
[CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md)
doc.
- [x] I have added tests that prove my fix is effective or that my
feature works and increased code coverage.
- [x] I have added all necessary documentation.
- [x] I have verified that my changes do not introduce (new) build or
analyzer warnings.
- [ ] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed.
- [ ] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings.
- [ ] I have addressed **all** PR feedback received.
2026-06-03 22:38:32 +02:00
Marc Schier 889572472f Convert DataValue from class to readonly struct for further GC relief (#3796)
Convert `DataValue` from a mutable reference type (`class`) to a `readonly struct` to eliminate per-allocation GC pressure on every attribute read, subscription publish, and history sample.

### Key API changes (user-visible)

| Before | After | Pattern |
|---|---|---|
| `class DataValue` | `readonly struct DataValue : INullable` | Foundation |
| `Equals(DataValue?)` / `operator ==(DataValue?, DataValue?)` | `Equals(DataValue)` / `operator ==(DataValue, DataValue)` | Value semantics |
| `IEncoder.WriteDataValue(string?, DataValue?)` | `IEncoder.WriteDataValue(string?, DataValue)` | Non-nullable wire API |
| `IDecoder.ReadDataValue(...) -> DataValue?` | `IDecoder.ReadDataValue(...) -> DataValue` | Same |
| `IDataChangeMonitoredItemQueue.PeekLast/Oldest()` | `TryPeekLastValue/Oldest(out DataValue)` | TryGet pattern |
| `IAggregateCalculator.GetProcessedValue(bool)` | `TryGetProcessedValue(bool, out DataValue)` | Same |
| `IUaPubSubDataStore.ReadPublishedDataItem(...)` | `TryReadPublishedDataItem(NodeId, uint, out DataValue)` | Same |
| `Dictionary<uint, DataValue?>` (NodeCacheContext) | `Dictionary<uint, DataValue>` | Default + IsNull |
| `IHistoryDataSource.FirstRaw/NextRaw` | `TryFirstRaw/TryNextRaw(out DataValue)` | TryGet pattern |
| `NodeState.ReadAttribute(... DataValue)` | `NodeState.ReadAttribute(... ref DataValue)` | Sync mutation via ref |
| `NodeState.ReadAttributeAsync(... DataValue)` | `NodeState.ReadAttributeAsync(...) -> ValueTask<(ServiceResult, DataValue)>` | Async return tuple |
| `obj as DataValue` (heterogeneous Dictionary<string, object>) | `obj is DataValue dv ? dv : default(DataValue)` | Safe struct cast |
| `Assert.That(dv, Is.Not.Null)` (tests) | `Assert.That(dv.IsNull, Is.False)` | Struct test pattern |
| `[Obsolete] Value` setter, all property setters | Removed; use ctor or `With*()` | Immutability |
| `[DataContract]` + `[DataMember]` | Removed; surrogate via `SerializableDataValue` + `DataValueSurrogateProvider` | Serialization |

### Wire format

Wire format is **byte-identical** to the previous class-based implementation across binary / JSON / XML encoders. Default DataValue (`.IsNull == true`) is treated as the equivalent of the old null reference (writes JSON `null`, binary `byte 0`, XML omitted element).

### Why TryGet pattern (instead of leaving `DataValue?`)

For methods that previously returned `DataValue?` to signal "no value available" (queue peek, aggregate result, data store lookup, history navigation), the conversion to `bool TryGet(out DataValue)` matches BCL conventions (`Dictionary.TryGetValue`, `Queue.TryPeek`, `Int32.TryParse`) and gives the caller an explicit "may be absent" affordance without `Nullable<DataValue>` overhead.

### Breaking changes summary

- `DataValue` is now a `readonly struct` - boxing/unboxing semantics change for callers using `object`-typed APIs.
- `IEncoder.WriteDataValue` / `IDecoder.ReadDataValue` / `ReadDataValueArray` interface signatures lose the `Nullable` wrapper.
- `IDataChangeMonitoredItemQueue.PeekLastValue` / `PeekOldestValue` -> `TryPeekLastValue` / `TryPeekOldestValue` (out parameter).
- `IAggregateCalculator.GetProcessedValue` -> `TryGetProcessedValue` (out parameter).
- `IUaPubSubDataStore.ReadPublishedDataItem` -> `TryReadPublishedDataItem` (out parameter).
- `NodeState.ReadAttribute` takes `ref DataValue`; `ReadAttributeAsync` returns `ValueTask<(ServiceResult, DataValue)>`.
- `DataValue` property setters removed (use constructor + `With*` mutators).
2026-05-23 11:38:49 +02:00
Marc Schier 3e5f129c6f Enable nullable in Stack, Libraries (9), and Applications projects (#3732) 2026-05-17 12:55:24 +02:00
Marc Schier bd4543e961 ManagedSession, Pluggable Subscription engine, and fluent builder + DI (#3730)
- Add new managed session, wrapping session and providing connection management and failover handling
- Add new Subscription engine that can act as alternative to current engine, but is based on channels with worker tasks
- Add a fluent builder for managed session clients
- Replace NodeCache with LruNodeCache, rename ILruNodeCache and LruNodeCache to INodeCache and NodeCache
- Update migration guide and document new functionality.
2026-05-05 19:09:07 +02:00
Copilot 54cc3d88b1 Prepare for C# 15 union types: UnionAttribute polyfill, TryGetValue rename, HasValue (#3727) 2026-05-02 18:33:46 +02:00
Marc Schier 70abb05841 Remove Default JSON encoding infrastructure (#3713)
* Remove Default JSON encoding infrastructure

Remove IJsonEncodeable interface, JsonEncodingId properties, DefaultJson
constants, and all source generator JSON encoding output. The actual
JsonEncoder/JsonDecoder and PubSub JSON encoding are not affected.

- Delete IJsonEncodeable interface from IEncodable.cs
- Remove DataTypeAttribute.JsonEncodingId and simplify TryGetTypeIdsFromType
- Remove JSON encoding from 9 source generator files
- Remove IJsonEncodeable from 13 built-in types and 12 node types
- Remove JSON registration from EncodeableFactory and unboundTypeIds infra
- Remove jsonEncodingId from OptionSet, ComplexTypeSystem, IComplexTypeFactory
- Remove BrowseNames.DefaultJson and 25 *_Encoding_DefaultJson constants
- Update ~14 test files and 2 documentation files

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add IJsonEncodeable removal to migration guide

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* minor

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-04-29 17:39:43 +02:00
Marc Schier 34ed5716c0 Add structure-backed OptionSet DataType support in ComplexTypeSystem (#3672)
Concrete sub-types of the abstract OptionSet DataType (i=12755, e.g. AccessRights, CarExtras, OptionSetBase) were silently skipped by ComplexTypeSystem.LoadBaseStructureDataTypesAsync when only an EnumDefinition or OptionSetValues property was available. This change registers them with a new runtime class Opc.Ua.Encoders.OptionSet that reuses the generated Opc.Ua.OptionSet wire format (Value/ValidBits ByteStrings) and self-registers via IEncodeableType.

Key changes:

- New Stack/Opc.Ua/Types/OptionSet.cs with EnumDefinition-driven bit accessors (by name and index), GetSetFieldNames helper, and a fixed ByteLength derived from the highest declared bit per OPC UA Part 3 paragraph 8.40 / 3.2.8. SetBit throws ArgumentOutOfRangeException outside that range and always materializes Value/ValidBits to the fixed length.

- New AddOptionSetType entry point on IComplexTypeBuilder (source-breaking addition for custom implementations); DefaultComplexTypeBuilder implements it. The Reflection.Emit ComplexTypeBuilder throws NotSupportedException.

- ComplexTypeSystem detects OptionSet descendants via a HasSubtype walk and resolves the EnumDefinition from DataTypeDefinition or the OptionSetValues property fallback before the old skip path.

- Removed stale V1.04 OptionSet limitation remark from ComplexTypeSystem.

- 10 unit tests in Tests/Opc.Ua.Client.Tests/ComplexTypes/DefaultOptionSetTests.cs covering factory registration, bit accessors, binary round-trip via ExtensionObject, hand-crafted Part 6 wire format, Clone/CreateInstance semantics, and the ByteLength invariant.

- Live-verified against opc.tcp://DESKTOP-BGFJS91:48010 (UA C++ SDK demo): AccessRights/CarExtras/OptionSetBase now appear in the registered custom-type list; no skip-log entries; LoadAsync(throwOnError:true) returns true.

- Docs/ComplexTypes.md Known Limitations reworded; Docs/MigrationGuide.md gains an OptionSet DataType support subsection.

UInteger-backed OptionSet DataTypes remain intentionally opaque (carried as their unsigned integer in a Variant).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-04-17 21:16:55 +02:00
Marc Schier d1883832e1 Secure channel enhancements 2025 11 (Take 3) (#3665)
* merged security changes

* Tailor SecurityPolicyUri for format expected in s_securityPolicyUriToInfo

* Enhance security policy handling and key computation logic

* Merge SecurityEnhancements.

* Add support for SessionTransferToken. Removed obsolete SoftwareCertificate code.

* Fix NonceLength for None.

* Add support for RSA_DH, more fixes from IOP testings.

* Finish implementation of SecureChannelEnhancements.

* Rename EccUtils.cs to CryptoUtils.cs

* Address feedback from reviewers.

* Fix CoPilot flagged spelling errors.

* Rename EccUtils to CryptoUtils

* Update version from 1.5.378-preview to 1.5.378

* Fix unit tests.

* Allow SignatureData.Algorithm to be NULL or Empty.

* Fix issue with BrainPool_p256r1_ChaChaPoly

* Fix RSA_DH_AesGcm

* Fix OSC/padding by deriving HMAC keys, tightening symmetric size math, and correcting ECC_brainpoolP384r1/Basic128Rsa15 IV, signature, padding, and nonce parameters.

* Policies without asymmetric encryption (ECC) return the plaintext when encrypting user tokens; this prevents null payloads from causing BadIdentityTokenInvalid.

* Reserve outer CBC padding for avoiding SymetricEncryptAndSign->AddPadding to overwrite next fields (signature)

* Nonce stored as byte array in SessionConfiguration; Sesion snapshot restores ServerNonce and reconstructs ECC ephemeral key Nonce from bytes and policy

* Added _AesGcm and _ChaChaPoly variants to BuildSupportedSecurityPolicies() for all six ECC certificate types (nistP256, nistP384, brainpoolP256r1, brainpoolP384r1, curve25519, curve448) to SecurityConfiguration. Added Sign and SignAndEncrypt endpoints for the four ECC AesGcm/ChaChaPoly policy pairs (nistP256, nistP384, brainpoolP256r1, brainpoolP384r1) to ServerFixture.

* make ephemeralKeyPolicyUri nullable

* GenerateSecret also for NET7 and NET8

* Adjust Basic128Rsa15 policy properties for backword compatibility

* Exclude unsuported AEAD policies from .NET Framework client tests

* Addapt to new changes (still build fail)

* Addapt code to make it compile

* Fixed failing build on net48 (by ignoring potential null ref which is not reported on other newer targets)

* Preserve the certificate reference in Clone() so copied handlers can still sign

* Remove extra code and addapt to existing master configuration settings

* Filter *_AesGcm and *_ChaChaPoly security policies based on actual runtime support, so unsupported AEAD policies are not advertised or selected on older frameworks

* Expand ECC/RSA policy test coverage and keep Basic128Rsa15 nonce length backward-compatible

* Fix ReconnectSessionOnAlternateChannel _AES and _ChaCha policies

* Fixed IgnoreIfPolicyNotAdvertised so it now fetches endpoints on-demand (instead of relying on Endpoints being preloaded by earlier tests), which avoids false ignores when running tests directlyy

* Merge with commit 5e627f2ca1 from secure-channel-enhancements-2025-11 branch

* minor log mesatge formating

* Fix ClientLockoutTests

* Add ServerFixture policies upfront only if framework and runtime capability supports them

* A few cosmetic/config changes as review sugested

* Moved the session/security handling from StandardServer into a dedicated helper

* use X509IdentityTokenHandler from secure-channel-enhancements-2025-11

* Removed unused Opc.Ua.Types.UnitTests.csproj

* test(client): fix Basic128Rsa15 reconnect token-policy coverage

Advertise an explicit Basic128Rsa15 user token policy in the test fixture and tighten the reconnect test preconditions for non-advertised policies.

* test(client): fix session nonce persistence test helpers

Replace the generic reflection helpers in SessionTests with explicit client/server nonce accessors that match the actual field types.

Add a short Session comment to explain why client and server nonces currently use different representations.

* Merge branch 'master' into secure-channel-enhancements-2025-11-merge5

Merge with latest master and fix conflicts.

* Removed unused Opc.Ua.Types.UnitTests.csproj

* test(client): fix Basic128Rsa15 reconnect token-policy coverage

Advertise an explicit Basic128Rsa15 user token policy in the test fixture and tighten the reconnect test preconditions for non-advertised policies.

* test(client): fix session nonce persistence test helpers

Replace the generic reflection helpers in SessionTests with explicit client/server nonce accessors that match the actual field types.

Add a short Session comment to explain why client and server nonces currently use different representations.

* Build fixes

* Fix build

* update

* Minor updates

* Fix tests

* Add code to check all Endpoints.

* Update Design files to 1.05.7

* Run code fixers, add missing docs

* Fix build

* Revert removal of using

* Increase build timeout

---------

Co-authored-by: mrsuciu <Mircea-Adrian.Suciu@Softing.com>
Co-authored-by: Randy Armstrong <randy@sparhawksoftware.com>
2026-04-16 18:56:42 +00:00
Marc Schier 64ca85fce3 Increase code coverage across solution (#3662)
Add additional tests to increase code coverage across the solution
2026-04-14 13:32:10 +02:00
Marc Schier fd41681f4b Add support to publish OPC UA applications as Native AOT (#3633)
* make most ptojects aot compatible
* Remove newtonsoft
* Migrate all projects from Mono.Options to System.CommandLine 2.0.5
* Fix array clone
* Replace serializers for storage using new attribute driven  type geberator
* Add new AOT integration tests covering all functional areas
* Documentation updates
2026-04-13 20:52:29 +02:00