Files
UA-.NETStandard/Applications/Quickstarts.Servers/ReferenceServer/ReferenceServer.NodeManagement.cs
Marc Schier 0000513cde Pluggable user-identity provider model (#3807)
# Description

Introduces a pluggable user-identity provider model covering all OPC UA
Part 6 §6.5 mechanisms (Anonymous, UserName, X509, IssuedToken/JWT) on
both client and server, with full
`Microsoft.Extensions.DependencyInjection` integration, plus the Part 12
§9 `AuthorizationService` two-phase token-request flow **including
refresh-token rotation**, the Part 12 §8 KeyCredential Push model, and a
clean provider model for OPC 10000-12 §7.2 `ApplicationSelfAdmin`. The
work is split across phase-by-phase commits so it can be reviewed
independently; nothing here changes wire-level behaviour or forces
existing applications to migrate.

### Documentation

All under `Docs/`:

- `IdentityProviders.md` — full developer guide: three-layer model,
recipes, configuration reference, "what gets auto-wired" matrix, JWS
algorithm table, identity-augmenters section, **"Implementing your own
provider"** how-to subsections for Entra / OIDC / Windows / AspNetCore
(sibling files merged in per review feedback).
- `DependencyInjection.md` — `Identity` sections with `appsettings.json`
examples, identity-extension matrix, `WithAuthorizationService` +
`WithKeyCredentialPush` + `AddIdentityAugmenter` extensions documented.
- `RoleBasedUserManagement.md` — claim-criteria callout describing
`IIdentityClaims` probe surface.
- `AuthorizationService.md` — Architecture diagram +
`IAccessTokenProvider` conceptual narrative restored from master; modern
`StartRequestToken` / `FinishRequestToken` flow leads; refresh-token
recipe added.
- `KeyCredentialService.md` — Push model + Pull vs Push vs Bridge
decision matrix + Hybrid (Push + Pull) section; explicit experimental
warning for the bridge.
- `GDS.md` — KeyCredential Push, `StartRequestToken`,
`GdsApplicationSelfAdminProvider`, **shipped Refresh-token support with
rotation policy and audit semantics** all documented.
- `MigrationGuide.md` — User Identity Providers section listing
`[Obsolete]` markers + mechanical recipes; SelfAdmin migration via
`IIdentityAugmenter`; `EnableRefreshTokens` default note.
- `README.md` index entries.

## 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.
- [x] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed.
- [x] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings.
- [x] I have addressed **all** PR feedback received.
2026-06-02 01:14:54 +02:00

826 lines
31 KiB
C#

/* ========================================================================
* Copyright (c) 2005-2025 The OPC Foundation, Inc. All rights reserved.
*
* OPC Foundation MIT License 1.00
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* The complete license agreement can be found here:
* http://opcfoundation.org/License/MIT/1.00/
* ======================================================================*/
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using Opc.Ua;
using Opc.Ua.Server;
namespace Quickstarts.ReferenceServer
{
/// <summary>
/// Reference server overrides for the OPC UA Node Management service set
/// (AddNodes / DeleteNodes / AddReferences / DeleteReferences). Newly
/// added nodes live in the writable <see cref="ReferenceNodeManager"/>
/// namespace regardless of the parent node's namespace; an inverse
/// reference is also added to the parent so the new node is reachable
/// via Browse.
/// </summary>
/// <remarks>
/// TODO (follow-up, see PR #3750 review comment): move this
/// implementation into <see cref="StandardServer"/> and resolve it
/// through <see cref="MasterNodeManager"/> so AddNodes / DeleteNodes
/// dispatch is centralised in the SDK rather than reimplemented in
/// each derived server.
/// </remarks>
public partial class ReferenceServer
{
/// <summary>
/// Implements the AddNodes service to allow conformance tests to
/// exercise the Node Management service set against the reference
/// server. Newly added nodes live in the writable
/// <see cref="ReferenceNodeManager"/> namespace regardless of the
/// parent node's namespace; an inverse reference is also added to
/// the parent so the new node is reachable via Browse.
/// </summary>
/// <remarks>
/// TODO (follow-up, see PR #3750 review comment): move this
/// implementation into <see cref="StandardServer"/> and resolve it
/// through <see cref="MasterNodeManager"/> so AddNodes / DeleteNodes
/// dispatch is centralised in the SDK rather than reimplemented in
/// each derived server. The current routing keeps writes constrained
/// to <see cref="ReferenceNodeManager"/> which is acceptable for the
/// CTT but not the desired long-term shape.
/// </remarks>
public override async ValueTask<AddNodesResponse> AddNodesAsync(
SecureChannelContext secureChannelContext,
RequestHeader? requestHeader,
ArrayOf<AddNodesItem> nodesToAdd,
RequestLifetime requestLifetime)
{
OperationContext context = await ValidateRequestAsync(
secureChannelContext,
requestHeader,
RequestType.AddNodes,
requestLifetime).ConfigureAwait(false);
try
{
ValidateOperationLimits(
nodesToAdd,
ServerInternal.ServerObject.ServerCapabilities!.OperationLimits!
.MaxNodesPerNodeManagement);
var results = new AddNodesResult[nodesToAdd.Count];
var diagnosticInfos = new DiagnosticInfo[nodesToAdd.Count];
bool anyDiagnostics = false;
for (int ii = 0; ii < nodesToAdd.Count; ii++)
{
(StatusCode statusCode, NodeId addedNodeId) =
await TryAddNodeAsync(
context,
nodesToAdd[ii],
requestLifetime.CancellationToken).ConfigureAwait(false);
results[ii] = new AddNodesResult
{
StatusCode = statusCode,
AddedNodeId = addedNodeId
};
if (StatusCode.IsBad(statusCode))
{
anyDiagnostics = true;
diagnosticInfos[ii] = new DiagnosticInfo(
new ServiceResult(statusCode),
context.DiagnosticsMask,
false,
context.StringTable,
m_logger);
}
}
return new AddNodesResponse
{
Results = results.ToArrayOf(),
DiagnosticInfos = anyDiagnostics
? diagnosticInfos.ToArrayOf()
: default,
ResponseHeader = CreateResponse(requestHeader, context.StringTable)
};
}
catch (ServiceResultException e)
{
lock (ServerInternal.DiagnosticsWriteLock)
{
ServerInternal.ServerDiagnostics.RejectedRequestsCount++;
if (IsSecurityError(e.StatusCode))
{
ServerInternal.ServerDiagnostics.SecurityRejectedRequestsCount++;
}
}
throw TranslateException(context, e);
}
finally
{
OnRequestComplete(context);
}
}
/// <summary>
/// Implements the DeleteNodes service for the reference server. Only
/// nodes managed by the writable <see cref="ReferenceNodeManager"/>
/// can be removed; attempts to delete nodes from other node managers
/// (for example, the core address space) return
/// <see cref="StatusCodes.BadUserAccessDenied"/>.
/// </summary>
public override async ValueTask<DeleteNodesResponse> DeleteNodesAsync(
SecureChannelContext secureChannelContext,
RequestHeader? requestHeader,
ArrayOf<DeleteNodesItem> nodesToDelete,
RequestLifetime requestLifetime)
{
OperationContext context = await ValidateRequestAsync(
secureChannelContext,
requestHeader,
RequestType.DeleteNodes,
requestLifetime).ConfigureAwait(false);
try
{
ValidateOperationLimits(
nodesToDelete,
ServerInternal.ServerObject.ServerCapabilities!.OperationLimits!
.MaxNodesPerNodeManagement);
var results = new StatusCode[nodesToDelete.Count];
var diagnosticInfos = new DiagnosticInfo[nodesToDelete.Count];
bool anyDiagnostics = false;
for (int ii = 0; ii < nodesToDelete.Count; ii++)
{
StatusCode statusCode = await TryDeleteNodeAsync(
context,
nodesToDelete[ii],
requestLifetime.CancellationToken).ConfigureAwait(false);
results[ii] = statusCode;
if (StatusCode.IsBad(statusCode))
{
anyDiagnostics = true;
diagnosticInfos[ii] = new DiagnosticInfo(
new ServiceResult(statusCode),
context.DiagnosticsMask,
false,
context.StringTable,
m_logger);
}
}
return new DeleteNodesResponse
{
Results = results.ToArrayOf(),
DiagnosticInfos = anyDiagnostics
? diagnosticInfos.ToArrayOf()
: default,
ResponseHeader = CreateResponse(requestHeader, context.StringTable)
};
}
catch (ServiceResultException e)
{
lock (ServerInternal.DiagnosticsWriteLock)
{
ServerInternal.ServerDiagnostics.RejectedRequestsCount++;
if (IsSecurityError(e.StatusCode))
{
ServerInternal.ServerDiagnostics.SecurityRejectedRequestsCount++;
}
}
throw TranslateException(context, e);
}
finally
{
OnRequestComplete(context);
}
}
/// <summary>
/// Implements the AddReferences service. Forward references are added
/// through the master node manager which dispatches the change to the
/// node manager that owns the source node.
/// </summary>
public override async ValueTask<AddReferencesResponse> AddReferencesAsync(
SecureChannelContext secureChannelContext,
RequestHeader? requestHeader,
ArrayOf<AddReferencesItem> referencesToAdd,
RequestLifetime requestLifetime)
{
OperationContext context = await ValidateRequestAsync(
secureChannelContext,
requestHeader,
RequestType.AddReferences,
requestLifetime).ConfigureAwait(false);
try
{
ValidateOperationLimits(
referencesToAdd,
ServerInternal.ServerObject.ServerCapabilities!.OperationLimits!
.MaxNodesPerNodeManagement);
var results = new StatusCode[referencesToAdd.Count];
var diagnosticInfos = new DiagnosticInfo[referencesToAdd.Count];
bool anyDiagnostics = false;
for (int ii = 0; ii < referencesToAdd.Count; ii++)
{
StatusCode statusCode = await TryAddReferenceAsync(
referencesToAdd[ii],
requestLifetime.CancellationToken).ConfigureAwait(false);
results[ii] = statusCode;
if (StatusCode.IsBad(statusCode))
{
anyDiagnostics = true;
diagnosticInfos[ii] = new DiagnosticInfo(
new ServiceResult(statusCode),
context.DiagnosticsMask,
false,
context.StringTable,
m_logger);
}
}
return new AddReferencesResponse
{
Results = results.ToArrayOf(),
DiagnosticInfos = anyDiagnostics
? diagnosticInfos.ToArrayOf()
: default,
ResponseHeader = CreateResponse(requestHeader, context.StringTable)
};
}
catch (ServiceResultException e)
{
lock (ServerInternal.DiagnosticsWriteLock)
{
ServerInternal.ServerDiagnostics.RejectedRequestsCount++;
if (IsSecurityError(e.StatusCode))
{
ServerInternal.ServerDiagnostics.SecurityRejectedRequestsCount++;
}
}
throw TranslateException(context, e);
}
finally
{
OnRequestComplete(context);
}
}
/// <summary>
/// Implements the DeleteReferences service. The change is dispatched
/// to the node manager that owns the source node through the master
/// node manager.
/// </summary>
public override async ValueTask<DeleteReferencesResponse> DeleteReferencesAsync(
SecureChannelContext secureChannelContext,
RequestHeader? requestHeader,
ArrayOf<DeleteReferencesItem> referencesToDelete,
RequestLifetime requestLifetime)
{
OperationContext context = await ValidateRequestAsync(
secureChannelContext,
requestHeader,
RequestType.DeleteReferences,
requestLifetime).ConfigureAwait(false);
try
{
ValidateOperationLimits(
referencesToDelete,
ServerInternal.ServerObject.ServerCapabilities!.OperationLimits!
.MaxNodesPerNodeManagement);
var results = new StatusCode[referencesToDelete.Count];
var diagnosticInfos = new DiagnosticInfo[referencesToDelete.Count];
bool anyDiagnostics = false;
for (int ii = 0; ii < referencesToDelete.Count; ii++)
{
StatusCode statusCode = await TryDeleteReferenceAsync(
referencesToDelete[ii],
requestLifetime.CancellationToken).ConfigureAwait(false);
results[ii] = statusCode;
if (StatusCode.IsBad(statusCode))
{
anyDiagnostics = true;
diagnosticInfos[ii] = new DiagnosticInfo(
new ServiceResult(statusCode),
context.DiagnosticsMask,
false,
context.StringTable,
m_logger);
}
}
return new DeleteReferencesResponse
{
Results = results.ToArrayOf(),
DiagnosticInfos = anyDiagnostics
? diagnosticInfos.ToArrayOf()
: default,
ResponseHeader = CreateResponse(requestHeader, context.StringTable)
};
}
catch (ServiceResultException e)
{
lock (ServerInternal.DiagnosticsWriteLock)
{
ServerInternal.ServerDiagnostics.RejectedRequestsCount++;
if (IsSecurityError(e.StatusCode))
{
ServerInternal.ServerDiagnostics.SecurityRejectedRequestsCount++;
}
}
throw TranslateException(context, e);
}
finally
{
OnRequestComplete(context);
}
}
/// <summary>
/// Validates a single AddNodes item and creates the node in the
/// reference node manager when the request is acceptable.
/// </summary>
private async ValueTask<(StatusCode statusCode, NodeId addedNodeId)> TryAddNodeAsync(
OperationContext context,
AddNodesItem item,
CancellationToken cancellationToken)
{
ReferenceNodeManager? nodeManager = m_referenceNodeManager;
if (nodeManager == null)
{
return (StatusCodes.BadNotSupported, NodeId.Null);
}
if (item == null || item.BrowseName.IsNull)
{
return (StatusCodes.BadBrowseNameInvalid, NodeId.Null);
}
if (!IsSupportedNodeClass(item.NodeClass))
{
return (StatusCodes.BadNodeClassInvalid, NodeId.Null);
}
// Validate the parent node id and resolve it to the local server.
var parentNodeId = ExpandedNodeId.ToNodeId(
item.ParentNodeId,
ServerInternal.NamespaceUris);
if (parentNodeId.IsNull)
{
return (StatusCodes.BadParentNodeIdInvalid, NodeId.Null);
}
(object? parentHandle, _) = await ServerInternal.NodeManager
.GetManagerHandleAsync(parentNodeId, cancellationToken)
.ConfigureAwait(false);
if (parentHandle == null)
{
return (StatusCodes.BadParentNodeIdInvalid, NodeId.Null);
}
// Validate the reference type.
if (item.ReferenceTypeId.IsNull ||
!ServerInternal.TypeTree.IsKnown(item.ReferenceTypeId))
{
return (StatusCodes.BadReferenceTypeIdInvalid, NodeId.Null);
}
if (!ServerInternal.TypeTree.IsTypeOf(
item.ReferenceTypeId,
ReferenceTypeIds.HierarchicalReferences))
{
return (StatusCodes.BadReferenceNotAllowed, NodeId.Null);
}
// Reject client-provided NodeIds — the server assigns NodeIds.
if (!item.RequestedNewNodeId.IsNull)
{
return (StatusCodes.BadNodeIdRejected, NodeId.Null);
}
// Validate the type definition.
var typeDefinitionId = ExpandedNodeId.ToNodeId(
item.TypeDefinition,
ServerInternal.NamespaceUris);
BaseInstanceState instance;
try
{
instance = CreateInstanceFromAddNodesItem(item, typeDefinitionId);
}
catch (ServiceResultException ex)
{
return (ex.StatusCode, NodeId.Null);
}
// Detect duplicate browse names under the same parent before adding.
if (await BrowseNameExistsUnderParentAsync(
context,
parentNodeId,
item.BrowseName,
item.ReferenceTypeId,
cancellationToken).ConfigureAwait(false))
{
return (StatusCodes.BadBrowseNameDuplicated, NodeId.Null);
}
try
{
NodeId addedNodeId = await nodeManager.AddInstanceNodeAsync(
new ServerSystemContext(ServerInternal, context),
parentNodeId,
item.ReferenceTypeId,
instance,
cancellationToken).ConfigureAwait(false);
return (StatusCodes.Good, addedNodeId);
}
catch (ServiceResultException ex)
{
return (ex.StatusCode, NodeId.Null);
}
}
/// <summary>
/// Validates a single DeleteNodes item and removes the node when it
/// is owned by the reference node manager.
/// </summary>
private async ValueTask<StatusCode> TryDeleteNodeAsync(
OperationContext context,
DeleteNodesItem item,
CancellationToken cancellationToken)
{
if (item == null || item.NodeId.IsNull)
{
return StatusCodes.BadNodeIdInvalid;
}
(object? handle, IAsyncNodeManager? nodeManager) = await ServerInternal
.NodeManager.GetManagerHandleAsync(item.NodeId, cancellationToken)
.ConfigureAwait(false);
if (handle == null)
{
return StatusCodes.BadNodeIdUnknown;
}
// Only allow deletion in the writable reference namespace to avoid
// breaking the core address space exposed by the SDK.
if (nodeManager is not ReferenceNodeManager referenceNodeManager ||
referenceNodeManager != m_referenceNodeManager)
{
return StatusCodes.BadUserAccessDenied;
}
bool removed = await referenceNodeManager.DeleteNodeAsync(
new ServerSystemContext(ServerInternal, context),
item.NodeId,
cancellationToken).ConfigureAwait(false);
return removed ? StatusCodes.Good : StatusCodes.BadNodeIdUnknown;
}
/// <summary>
/// Adds a single reference using the master node manager.
/// </summary>
private async ValueTask<StatusCode> TryAddReferenceAsync(
AddReferencesItem item,
CancellationToken cancellationToken)
{
if (item == null ||
item.SourceNodeId.IsNull ||
item.ReferenceTypeId.IsNull)
{
return StatusCodes.BadNodeIdInvalid;
}
if (!ServerInternal.TypeTree.IsKnown(item.ReferenceTypeId))
{
return StatusCodes.BadReferenceTypeIdInvalid;
}
(object? sourceHandle, _) = await ServerInternal.NodeManager
.GetManagerHandleAsync(item.SourceNodeId, cancellationToken)
.ConfigureAwait(false);
if (sourceHandle == null)
{
return StatusCodes.BadSourceNodeIdInvalid;
}
var targetNodeId = ExpandedNodeId.ToNodeId(
item.TargetNodeId,
ServerInternal.NamespaceUris);
if (targetNodeId.IsNull)
{
return StatusCodes.BadTargetNodeIdInvalid;
}
(object? targetHandle, _) = await ServerInternal.NodeManager
.GetManagerHandleAsync(targetNodeId, cancellationToken)
.ConfigureAwait(false);
if (targetHandle == null)
{
return StatusCodes.BadTargetNodeIdInvalid;
}
try
{
var references = new List<IReference>
{
new NodeStateReference(
item.ReferenceTypeId,
!item.IsForward,
targetNodeId)
};
await ServerInternal.NodeManager.AddReferencesAsync(
item.SourceNodeId,
references,
cancellationToken).ConfigureAwait(false);
return StatusCodes.Good;
}
catch (ServiceResultException ex)
{
return ex.StatusCode;
}
}
/// <summary>
/// Deletes a single reference using the master node manager.
/// </summary>
private async ValueTask<StatusCode> TryDeleteReferenceAsync(
DeleteReferencesItem item,
CancellationToken cancellationToken)
{
if (item == null ||
item.SourceNodeId.IsNull ||
item.ReferenceTypeId.IsNull)
{
return StatusCodes.BadNodeIdInvalid;
}
(object? sourceHandle, IAsyncNodeManager? nodeManager) = await ServerInternal
.NodeManager.GetManagerHandleAsync(item.SourceNodeId, cancellationToken)
.ConfigureAwait(false);
if (sourceHandle == null)
{
return StatusCodes.BadSourceNodeIdInvalid;
}
try
{
ServiceResult? result = await nodeManager!.DeleteReferenceAsync(
sourceHandle!,
item.ReferenceTypeId,
!item.IsForward,
item.TargetNodeId,
item.DeleteBidirectional,
cancellationToken).ConfigureAwait(false);
return result == null ? StatusCodes.Good : result.StatusCode;
}
catch (ServiceResultException ex)
{
return ex.StatusCode;
}
}
/// <summary>
/// Returns true when the supplied NodeClass is one this server
/// permits clients to add at runtime.
/// </summary>
private static bool IsSupportedNodeClass(NodeClass nodeClass)
{
return nodeClass is NodeClass.Object or NodeClass.Variable;
}
/// <summary>
/// Creates the NodeState for an AddNodes request based on the
/// requested node class and provided attributes.
/// </summary>
/// <exception cref="ServiceResultException">
/// Thrown when the supplied attributes are not valid for the node
/// class.
/// </exception>
private static BaseInstanceState CreateInstanceFromAddNodesItem(
AddNodesItem item,
NodeId typeDefinitionId)
{
switch (item.NodeClass)
{
case NodeClass.Variable:
var variable = new BaseDataVariableState(null)
{
BrowseName = item.BrowseName,
DisplayName = new LocalizedText(item.BrowseName.Name),
TypeDefinitionId = typeDefinitionId.IsNull
? VariableTypeIds.BaseDataVariableType
: typeDefinitionId,
AccessLevel = AccessLevels.CurrentReadOrWrite,
UserAccessLevel = AccessLevels.CurrentReadOrWrite,
DataType = DataTypeIds.BaseDataType,
ValueRank = ValueRanks.Scalar
};
if (!item.NodeAttributes.IsNull)
{
if (!item.NodeAttributes.TryGetValue(out VariableAttributes? va))
{
throw new ServiceResultException(
StatusCodes.BadNodeAttributesInvalid);
}
ApplyVariableAttributes(variable, va!);
}
return variable;
case NodeClass.Object:
var instance = new BaseObjectState(null)
{
BrowseName = item.BrowseName,
DisplayName = new LocalizedText(item.BrowseName.Name),
TypeDefinitionId = typeDefinitionId.IsNull
? ObjectTypeIds.BaseObjectType
: typeDefinitionId
};
if (!item.NodeAttributes.IsNull)
{
if (!item.NodeAttributes.TryGetValue(out ObjectAttributes? oa))
{
throw new ServiceResultException(
StatusCodes.BadNodeAttributesInvalid);
}
ApplyObjectAttributes(instance, oa!);
}
return instance;
default:
throw new ServiceResultException(
StatusCodes.BadNodeClassInvalid);
}
}
private static void ApplyVariableAttributes(
BaseDataVariableState variable,
VariableAttributes attributes)
{
uint mask = attributes.SpecifiedAttributes;
if ((mask & (uint)NodeAttributesMask.DisplayName) != 0 &&
!attributes.DisplayName.IsNull)
{
variable.DisplayName = attributes.DisplayName;
}
if ((mask & (uint)NodeAttributesMask.Description) != 0 &&
!attributes.Description.IsNull)
{
variable.Description = attributes.Description;
}
if ((mask & (uint)NodeAttributesMask.DataType) != 0 &&
!attributes.DataType.IsNull)
{
variable.DataType = attributes.DataType;
}
if ((mask & (uint)NodeAttributesMask.ValueRank) != 0)
{
variable.ValueRank = attributes.ValueRank;
}
if ((mask & (uint)NodeAttributesMask.AccessLevel) != 0)
{
variable.AccessLevel = attributes.AccessLevel;
}
if ((mask & (uint)NodeAttributesMask.UserAccessLevel) != 0)
{
variable.UserAccessLevel = attributes.UserAccessLevel;
}
if ((mask & (uint)NodeAttributesMask.Historizing) != 0)
{
variable.Historizing = attributes.Historizing;
}
if ((mask & (uint)NodeAttributesMask.MinimumSamplingInterval) != 0)
{
variable.MinimumSamplingInterval = attributes.MinimumSamplingInterval;
}
if ((mask & (uint)NodeAttributesMask.Value) != 0)
{
variable.Value = attributes.Value;
}
}
private static void ApplyObjectAttributes(
BaseObjectState instance,
ObjectAttributes attributes)
{
uint mask = attributes.SpecifiedAttributes;
if ((mask & (uint)NodeAttributesMask.DisplayName) != 0 &&
!attributes.DisplayName.IsNull)
{
instance.DisplayName = attributes.DisplayName;
}
if ((mask & (uint)NodeAttributesMask.Description) != 0 &&
!attributes.Description.IsNull)
{
instance.Description = attributes.Description;
}
if ((mask & (uint)NodeAttributesMask.EventNotifier) != 0)
{
instance.EventNotifier = attributes.EventNotifier;
}
}
/// <summary>
/// Returns true if a node with the requested browse name already exists
/// directly under the parent for the given hierarchical reference type.
/// </summary>
private async ValueTask<bool> BrowseNameExistsUnderParentAsync(
OperationContext context,
NodeId parentNodeId,
QualifiedName browseName,
NodeId referenceTypeId,
CancellationToken cancellationToken)
{
var browseDescriptions = new BrowseDescription[]
{
new()
{
NodeId = parentNodeId,
BrowseDirection = BrowseDirection.Forward,
ReferenceTypeId = referenceTypeId,
IncludeSubtypes = true,
NodeClassMask = 0,
ResultMask = (uint)BrowseResultMask.BrowseName
}
};
try
{
(ArrayOf<BrowseResult> results, _) = await ServerInternal.NodeManager
.BrowseAsync(
context,
null!,
0,
browseDescriptions.ToArrayOf(),
cancellationToken).ConfigureAwait(false);
if (results.Count == 0 || results[0].References.IsNull)
{
return false;
}
foreach (ReferenceDescription reference in results[0].References)
{
if (reference.BrowseName == browseName)
{
return true;
}
}
return false;
}
catch (ServiceResultException)
{
return false;
}
}
}
}