public void Execute(MethodDefinition method)
{
ExecutionEngine engine = new ExecutionEngine();
Thread thread = new Thread(engine);
MethodState state = new MethodState(thread, method);
thread.Methods.Push(state);
thread.Execute();
}
public void Execute(MethodState state, Instruction inst)
{
// FIXME SECURITY: Verifier should ensure all ldloc access is under the local var max.
if (this.m_Parameter == null)
state.LocalVariables[(int)inst.Operand] = state.EvaluationStack.Pop();
else
state.LocalVariables[(int)this.m_Parameter] = state.EvaluationStack.Pop();
}
public EditedMethodUpdater(Lazy<IMethodAnnotations> methodAnnotations, ModuleDocumentNode modNode, MethodDef originalMethod, Emit.MethodBody newBody, MethodDefOptions methodDefOptions) {
this.methodAnnotations = methodAnnotations;
ownerNode = modNode.Context.DocumentTreeView.FindNode(originalMethod);
if (ownerNode == null)
throw new InvalidOperationException();
method = originalMethod;
originalMethodState = new MethodState(originalMethod, methodAnnotations.Value.IsBodyModified(method));
newMethodState = new MethodState(newBody, methodDefOptions, true);
}
public void Execute(MethodState state, Instruction inst)
{
if (inst.Operand is MemberReference)
{
if ((inst.Operand as MemberReference).FullName == "System.Void System.Console::WriteLine(System.String)")
Console.WriteLine((string)state.EvaluationStack.Pop());
else
throw new NotSupportedException();
}
else
throw new NotSupportedException();
}
public void VisitMethod(BeginMethod begin)
{
if (!m_disabled)
{
Log.DebugLine(this, "{0}", begin.Info.Method);
string root = DoGetRootName(begin.Info.Method);
MethodState state = new MethodState
{
Method = begin.Info.Method,
IsThreadRoot = root != null,
IsThreadSafe = DoIsMarkedThreadSafe(begin.Info.Method),
IsExternal = begin.Info.Method.ExternallyVisible(Cache),
};
m_methods.Add(begin.Info.Method, state);
if (root != null)
{
m_knownRoots.Add(state, root);
}
else if (state.IsThreadSafe && state.IsExternal)
{
m_knownRoots.Add(state, "*");
}
else
{
if (Cache.Assembly.EntryPoint == begin.Info.Method)
{
m_entryPoints.Add(begin.Info.Method);
}
else if (state.IsExternal)
{
Log.TraceLine(this, "Externally visible but not marked as a thread:");
Log.TraceLine(this, " {0}", begin.Info.Method);
m_entryPoints.Add(begin.Info.Method);
}
}
if (DoTypeIsMarkedThreadSafe(begin.Info.Type))
if (m_safeTypes.IndexOf(begin.Info.Type) < 0)
m_safeTypes.Add(begin.Info.Type);
if (DoMethodIsMarkedThreadSafe(begin.Info.Method))
m_safeMethods.Add(state);
}
}
public void Execute(MethodState state, Instruction inst)
{
switch (this.m_Type)
{
case LdcType.i4:
if (this.m_Parameter == null)
state.EvaluationStack.Push(new Int32Type((Int32)inst.Operand));
else
state.EvaluationStack.Push(new Int32Type((Int32)this.m_Parameter));
break;
case LdcType.i8:
state.EvaluationStack.Push(new Int64Type((Int64)inst.Operand));
break;
case LdcType.r4:
case LdcType.r8:
state.EvaluationStack.Push(new FloatingPointType((float)inst.Operand));
break;
}
}
/// <summary>
/// Finds the child with the specified browse name.
/// </summary>
protected override BaseInstanceState FindChild(
ISystemContext context,
QualifiedName browseName,
bool createOrReplace,
BaseInstanceState replacement)
{
if (QualifiedName.IsNull(browseName))
{
return null;
}
BaseInstanceState instance = null;
switch (browseName.Name)
{
case ObjectTypeTest.BrowseNames.BrowseName4node66:
{
if (createOrReplace)
{
if (BrowseName4node66 == null)
{
if (replacement == null)
{
BrowseName4node66 = new PropertyState<LocalizedText>(this);
}
else
{
BrowseName4node66 = (PropertyState<LocalizedText>)replacement;
}
}
}
instance = BrowseName4node66;
break;
}
case ObjectTypeTest.BrowseNames.NameNotSet1109:
{
if (createOrReplace)
{
if (NameNotSet1109 == null)
{
if (replacement == null)
{
NameNotSet1109 = new AnalogItemState(this);
}
else
{
NameNotSet1109 = (AnalogItemState)replacement;
}
}
}
instance = NameNotSet1109;
break;
}
case ObjectTypeTest.BrowseNames.ChildMethod:
{
if (createOrReplace)
{
if (ChildMethod == null)
{
if (replacement == null)
{
ChildMethod = new ChildMethodComplexObjectMethodState(this);
}
else
{
ChildMethod = (ChildMethodComplexObjectMethodState)replacement;
}
}
}
instance = ChildMethod;
break;
}
case ObjectTypeTest.BrowseNames.NonExecutableMethod:
{
if (createOrReplace)
{
if (NonExecutableMethod == null)
{
if (replacement == null)
{
NonExecutableMethod = new MethodState(this);
}
else
{
NonExecutableMethod = (MethodState)replacement;
}
}
}
instance = NonExecutableMethod;
break;
}
}
if (instance != null)
{
return instance;
}
return base.FindChild(context, browseName, createOrReplace, replacement);
}
private ServiceResult CloseAndUpdate(
ISystemContext context,
MethodState method,
NodeId objectId,
uint fileHandle,
ref bool restartRequired)
{
HasSecureWriteAccess(context);
ServiceResult result = StatusCodes.Good;
lock (m_lock)
{
if (m_sessionId != context.SessionId)
{
return(StatusCodes.BadUserAccessDenied);
}
if (m_fileHandle != fileHandle)
{
return(StatusCodes.BadInvalidArgument);
}
try
{
TrustListDataType trustList = DecodeTrustListData(context, m_strm);
TrustListMasks masks = (TrustListMasks)trustList.SpecifiedLists;
X509Certificate2Collection issuerCertificates = null;
List <X509CRL> issuerCrls = null;
X509Certificate2Collection trustedCertificates = null;
List <X509CRL> trustedCrls = null;
// test integrity of all CRLs
if ((masks & TrustListMasks.IssuerCertificates) != 0)
{
issuerCertificates = new X509Certificate2Collection();
foreach (var cert in trustList.IssuerCertificates)
{
issuerCertificates.Add(new X509Certificate2(cert));
}
}
if ((masks & TrustListMasks.IssuerCrls) != 0)
{
issuerCrls = new List <X509CRL>();
foreach (var crl in trustList.IssuerCrls)
{
issuerCrls.Add(new X509CRL(crl));
}
}
if ((masks & TrustListMasks.TrustedCertificates) != 0)
{
trustedCertificates = new X509Certificate2Collection();
foreach (var cert in trustList.TrustedCertificates)
{
trustedCertificates.Add(new X509Certificate2(cert));
}
}
if ((masks & TrustListMasks.TrustedCrls) != 0)
{
trustedCrls = new List <X509CRL>();
foreach (var crl in trustList.TrustedCrls)
{
trustedCrls.Add(new X509CRL(crl));
}
}
// update store
// test integrity of all CRLs
TrustListMasks updateMasks = TrustListMasks.None;
if ((masks & TrustListMasks.IssuerCertificates) != 0)
{
if (UpdateStoreCertificates(m_issuerStorePath, issuerCertificates))
{
updateMasks |= TrustListMasks.IssuerCertificates;
}
}
if ((masks & TrustListMasks.IssuerCrls) != 0)
{
if (UpdateStoreCrls(m_issuerStorePath, issuerCrls))
{
updateMasks |= TrustListMasks.IssuerCrls;
}
}
if ((masks & TrustListMasks.TrustedCertificates) != 0)
{
if (UpdateStoreCertificates(m_trustedStorePath, trustedCertificates))
{
updateMasks |= TrustListMasks.TrustedCertificates;
}
}
if ((masks & TrustListMasks.TrustedCrls) != 0)
{
if (UpdateStoreCrls(m_trustedStorePath, trustedCrls))
{
updateMasks |= TrustListMasks.TrustedCrls;
}
}
if (masks != updateMasks)
{
result = StatusCodes.BadCertificateInvalid;
}
}
catch
{
result = StatusCodes.BadCertificateInvalid;
}
finally
{
m_sessionId = null;
m_strm = null;
m_node.LastUpdateTime.Value = DateTime.UtcNow;
m_node.OpenCount.Value = 0;
}
}
restartRequired = false;
return(result);
}
private ServiceResult ApplyChanges(
ISystemContext context,
MethodState method,
IList <object> inputArguments,
IList <object> outputArguments)
{
HasApplicationSecureAdminAccess(context);
bool disconnectSessions = false;
foreach (var certificateGroup in m_certificateGroups)
{
try
{
var updateCertificate = certificateGroup.UpdateCertificate;
if (updateCertificate != null)
{
if (certificateGroup.UpdateCertificate.SessionId == context.SessionId)
{
using (ICertificateStore appStore = CertificateStoreIdentifier.OpenStore(certificateGroup.ApplicationCertificate.StorePath))
{
appStore.Delete(certificateGroup.ApplicationCertificate.Thumbprint).Wait();
appStore.Add(updateCertificate.CertificateWithPrivateKey).Wait();
updateCertificate.CertificateWithPrivateKey = null;
}
using (ICertificateStore issuerStore = CertificateStoreIdentifier.OpenStore(certificateGroup.IssuerStorePath))
{
foreach (var issuer in updateCertificate.IssuerCollection)
{
try
{
issuerStore.Add(issuer).Wait();
}
catch (ArgumentException)
{
// ignore error if issuer cert already exists
}
}
}
disconnectSessions = true;
}
}
}
finally
{
certificateGroup.UpdateCertificate = null;
}
}
if (disconnectSessions)
{
Task.Run(async() =>
{
// give the client some time to receive the response
// before the certificate update may disconnect all sessions
await Task.Delay(1000);
await m_configuration.CertificateValidator.UpdateCertificate(m_configuration.SecurityConfiguration);
}
);
}
return(StatusCodes.Good);
}
/// <summary>
/// Method to remove the node from the subscription and stop publishing telemetry to IoTHub. Executes synchronously.
/// </summary>
private ServiceResult OnUnpublishNodeCall(ISystemContext context, MethodState method, IList <object> inputArguments, IList <object> outputArguments)
{
if (string.IsNullOrEmpty(inputArguments[0] as string) || string.IsNullOrEmpty(inputArguments[1] as string))
{
Trace("UnpublishNode: Invalid arguments!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide all arguments!"));
}
bool result = false;
NodeId nodeId = null;
ExpandedNodeId expandedNodeId = null;
Uri endpointUri = null;
bool isNodeIdFormat = true;
try
{
string id = inputArguments[0] as string;
if (id.Contains("nsu="))
{
expandedNodeId = ExpandedNodeId.Parse(id);
isNodeIdFormat = false;
}
else
{
nodeId = NodeId.Parse(id);
isNodeIdFormat = true;
}
endpointUri = new Uri(inputArguments[1] as string);
}
catch (UriFormatException)
{
Trace($"UnpublishNode: The endpointUrl is invalid '{inputArguments[1] as string}'!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide a valid OPC UA endpoint URL as second argument!"));
}
catch (Exception e)
{
Trace(e, $"UnpublishNode: The NodeId has an invalid format '{inputArguments[0] as string}'!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide a valid OPC UA NodeId in NodeId or ExpandedNodeId format as first argument!"));
}
// find the session and stop monitoring the node.
try
{
if (ShutdownTokenSource.IsCancellationRequested)
{
return(ServiceResult.Create(StatusCodes.BadUnexpectedError, $"Publisher shutdown in progress."));
}
// find the session we need to monitor the node
OpcSession opcSession = null;
try
{
OpcSessionsListSemaphore.Wait();
opcSession = OpcSessions.FirstOrDefault(s => s.EndpointUri.AbsoluteUri.Equals(endpointUri.AbsoluteUri, StringComparison.OrdinalIgnoreCase));
}
catch
{
opcSession = null;
}
finally
{
OpcSessionsListSemaphore.Release();
}
if (opcSession == null)
{
// do nothing if there is no session for this endpoint.
Trace($"UnpublishNode: Session for endpoint '{endpointUri.OriginalString}' not found.");
return(ServiceResult.Create(StatusCodes.BadSessionIdInvalid, "Session for endpoint of node to unpublished not found!"));
}
else
{
if (isNodeIdFormat)
{
// stop monitoring the node, execute syncronously
Trace($"UnpublishNode: Request to stop monitoring item with NodeId '{nodeId.ToString()}' (PublishingInterval: {OpcPublishingInterval}, SamplingInterval: {OpcSamplingInterval})");
result = opcSession.RequestMonitorItemRemovalAsync(nodeId, null, OpcPublishingInterval, OpcSamplingInterval, ShutdownTokenSource.Token).Result;
}
else
{
// stop monitoring the node, execute syncronously
Trace($"UnpublishNode: Request to stop monitoring item with ExpandedNodeId '{expandedNodeId.ToString()}' (PublishingInterval: {OpcPublishingInterval}, SamplingInterval: {OpcSamplingInterval})");
result = opcSession.RequestMonitorItemRemovalAsync(null, expandedNodeId, OpcPublishingInterval, OpcSamplingInterval, ShutdownTokenSource.Token).Result;
}
}
}
catch (Exception e)
{
Trace(e, $"UnpublishNode: Exception while trying to configure publishing node '{nodeId.ToString()}'");
return(ServiceResult.Create(e, StatusCodes.BadUnexpectedError, $"Unexpected error unpublishing node: {e.Message}"));
}
return(result ? ServiceResult.Good : ServiceResult.Create(StatusCodes.Bad, "Can not stop monitoring node!"));
}
/// <summary>
/// Called when a client locks the server.
/// </summary>
public ServiceResult OnGetMonitoredItems(
ISystemContext context,
MethodState method,
IList<object> inputArguments,
IList<object> outputArguments)
{
if (inputArguments == null || inputArguments.Count != 1)
{
return StatusCodes.BadInvalidArgument;
}
uint? subscriptionId = inputArguments[0] as uint?;
if (subscriptionId == null)
{
return StatusCodes.BadInvalidArgument;
}
uint[] serverHandles = null;
uint[] clientHandles = null;
foreach (Subscription subscription in Server.SubscriptionManager.GetSubscriptions())
{
if (subscription.Id == subscriptionId)
{
subscription.GetMonitoredItems(out serverHandles, out clientHandles);
outputArguments[0] = serverHandles;
outputArguments[1] = clientHandles;
return ServiceResult.Good;
}
}
return StatusCodes.BadSubscriptionIdInvalid;
}
/// <summary>
/// Method exposed as a node in the server to stop monitoring it and no longer publish telemetry of it.
/// </summary>
private ServiceResult UnPublishNodeMethod(ISystemContext context, MethodState method, IList <object> inputArguments, IList <object> outputArguments)
{
if (inputArguments[0] == null || inputArguments[1] == null)
{
Trace("UnPublishNodeMethod: Invalid arguments!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide all arguments!"));
}
string nodeId = inputArguments[0] as string;
string endpointUrl = inputArguments[1] as string;
if (string.IsNullOrEmpty(nodeId) || string.IsNullOrEmpty(endpointUrl))
{
Trace($"UnPublishNodeMethod: Arguments (0 (nodeId): '{nodeId}', 1 (endpointUrl):'{endpointUrl}') are not valid strings!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide all arguments as strings!"));
}
NodeToPublish nodeToUnpublish = new NodeToPublish();
try
{
nodeToUnpublish = new NodeToPublish(nodeId, endpointUrl);
}
catch (UriFormatException)
{
Trace($"UnPublishNodeMethod: The endpointUrl is invalid (0 (nodeId): '{nodeId}', 1 (endpointUrl):'{endpointUrl}')!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide a valid OPC UA endpoint URL as second argument!"));
}
// Find the session and stop monitoring the node.
try
{
// find the session we need to monitor the node
OpcSession opcSession = OpcSessions.First(s => s.EndpointUri == nodeToUnpublish.EndPointUri);
if (opcSession == null)
{
// do nothing if there is no session for this endpoint.
Trace($"UnPublishNodeMethod: Session for endpoint '{nodeToUnpublish.EndPointUri.AbsolutePath}' not found.");
return(ServiceResult.Create(StatusCodes.BadSessionIdInvalid, "Session for endpoint of published node not found!"));
}
else
{
Trace($"UnPublishNodeMethod: Session found for endpoint '{nodeToUnpublish.EndPointUri.AbsolutePath}'");
}
// remove the node from the sessions monitored items list.
opcSession.TagNodeForMonitoringStop(nodeToUnpublish.NodeId);
Trace("UnPublishNodeMethod: Requested to stop monitoring of node.");
// stop monitoring the node
Task monitorTask = Task.Run(async() => await opcSession.ConnectAndMonitor());
monitorTask.Wait();
Trace("UnPublishNodeMethod: Session processing completed.");
// remove node from our persisted data set.
var itemToRemove = NodesToPublish.Find(l => l.NodeId == nodeToUnpublish.NodeId && l.EndPointUri == nodeToUnpublish.EndPointUri);
NodesToPublish.Remove(itemToRemove);
// persist data
File.WriteAllText(NodesToPublishAbsFilename, JsonConvert.SerializeObject(NodesToPublish));
}
catch (Exception e)
{
Trace(e, $"DoPublish: Exception while trying to configure publishing node '{nodeToUnpublish.ToString()}'");
return(ServiceResult.Create(e, StatusCodes.BadUnexpectedError, $"Unexpected error publishing node: {e.Message}"));
}
return(ServiceResult.Good);
}
public abstract void SetNode(MethodState node);
/// <summary>
/// Imports a node from the set.
/// </summary>
private NodeState Import(ISystemContext context, UANode node)
{
NodeState importedNode = null;
NodeClass nodeClass = NodeClass.Unspecified;
if (node is UAObject) nodeClass = NodeClass.Object;
else if (node is UAVariable) nodeClass = NodeClass.Variable;
else if (node is UAMethod) nodeClass = NodeClass.Method;
else if (node is UAObjectType) nodeClass = NodeClass.ObjectType;
else if (node is UAVariableType) nodeClass = NodeClass.VariableType;
else if (node is UADataType) nodeClass = NodeClass.DataType;
else if (node is UAReferenceType) nodeClass = NodeClass.ReferenceType;
else if (node is UAView) nodeClass = NodeClass.View;
switch (nodeClass)
{
case NodeClass.Object:
{
UAObject o = (UAObject)node;
BaseObjectState value = new BaseObjectState(null);
value.EventNotifier = o.EventNotifier;
importedNode = value;
break;
}
case NodeClass.Variable:
{
UAVariable o = (UAVariable)node;
NodeId typeDefinitionId = null;
if (node.References != null)
{
for (int ii = 0; ii < node.References.Length; ii++)
{
Opc.Ua.NodeId referenceTypeId = ImportNodeId(node.References[ii].ReferenceType, context.NamespaceUris, true);
bool isInverse = !node.References[ii].IsForward;
Opc.Ua.ExpandedNodeId targetId = ImportExpandedNodeId(node.References[ii].Value, context.NamespaceUris, context.ServerUris);
if (referenceTypeId == ReferenceTypeIds.HasTypeDefinition && !isInverse)
{
typeDefinitionId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
break;
}
}
}
BaseVariableState value = null;
if (typeDefinitionId == Opc.Ua.VariableTypeIds.PropertyType)
{
value = new PropertyState(null);
}
else
{
value = new BaseDataVariableState(null);
}
value.DataType = ImportNodeId(o.DataType, context.NamespaceUris, true);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = ImportArrayDimensions(o.ArrayDimensions);
value.AccessLevel = o.AccessLevel;
value.UserAccessLevel = o.UserAccessLevel;
value.MinimumSamplingInterval = o.MinimumSamplingInterval;
value.Historizing = o.Historizing;
if (o.Value != null)
{
XmlDecoder decoder = CreateDecoder(context, o.Value);
TypeInfo typeInfo = null;
value.Value = decoder.ReadVariantContents(out typeInfo);
decoder.Close();
}
importedNode = value;
break;
}
case NodeClass.Method:
{
UAMethod o = (UAMethod)node;
MethodState value = new MethodState(null);
value.Executable = o.Executable;
value.UserExecutable = o.UserExecutable;
importedNode = value;
break;
}
case NodeClass.View:
{
UAView o = (UAView)node;
ViewState value = new ViewState();
value.ContainsNoLoops = o.ContainsNoLoops;
importedNode = value;
break;
}
case NodeClass.ObjectType:
{
UAObjectType o = (UAObjectType)node;
BaseObjectTypeState value = new BaseObjectTypeState();
value.IsAbstract = o.IsAbstract;
importedNode = value;
break;
}
case NodeClass.VariableType:
{
UAVariableType o = (UAVariableType)node;
BaseVariableTypeState value = new BaseDataVariableTypeState();
value.IsAbstract = o.IsAbstract;
value.DataType = ImportNodeId(o.DataType, context.NamespaceUris, true);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = ImportArrayDimensions(o.ArrayDimensions);
if (o.Value != null)
{
XmlDecoder decoder = CreateDecoder(context, o.Value);
TypeInfo typeInfo = null;
value.Value = decoder.ReadVariantContents(out typeInfo);
decoder.Close();
}
importedNode = value;
break;
}
case NodeClass.DataType:
{
UADataType o = (UADataType)node;
DataTypeState value = new DataTypeState();
value.IsAbstract = o.IsAbstract;
value.Definition = Import(o.Definition, context.NamespaceUris);
importedNode = value;
break;
}
case NodeClass.ReferenceType:
{
UAReferenceType o = (UAReferenceType)node;
ReferenceTypeState value = new ReferenceTypeState();
value.IsAbstract = o.IsAbstract;
value.InverseName = Import(o.InverseName);
value.Symmetric = o.Symmetric;
importedNode = value;
break;
}
}
importedNode.NodeId = ImportNodeId(node.NodeId, context.NamespaceUris, false);
importedNode.BrowseName = ImportQualifiedName(node.BrowseName, context.NamespaceUris);
importedNode.DisplayName = Import(node.DisplayName);
importedNode.Description = Import(node.Description);
importedNode.WriteMask = (AttributeWriteMask)node.WriteMask;
importedNode.UserWriteMask = (AttributeWriteMask)node.UserWriteMask;
if (!String.IsNullOrEmpty(node.SymbolicName))
{
importedNode.SymbolicName = node.SymbolicName;
}
if (node.References != null)
{
BaseInstanceState instance = importedNode as BaseInstanceState;
BaseTypeState type = importedNode as BaseTypeState;
for (int ii = 0; ii < node.References.Length; ii++)
{
Opc.Ua.NodeId referenceTypeId = ImportNodeId(node.References[ii].ReferenceType, context.NamespaceUris, true);
bool isInverse = !node.References[ii].IsForward;
Opc.Ua.ExpandedNodeId targetId = ImportExpandedNodeId(node.References[ii].Value, context.NamespaceUris, context.ServerUris);
if (instance != null)
{
if (referenceTypeId == ReferenceTypeIds.HasModellingRule && !isInverse)
{
instance.ModellingRuleId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
continue;
}
if (referenceTypeId == ReferenceTypeIds.HasTypeDefinition && !isInverse)
{
instance.TypeDefinitionId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
continue;
}
}
if (type != null)
{
if (referenceTypeId == ReferenceTypeIds.HasSubtype && isInverse)
{
type.SuperTypeId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
continue;
}
}
importedNode.AddReference(referenceTypeId, isInverse, targetId);
}
}
return importedNode;
}
public SwitchOffMethodState(MethodState source) : base(source)
{
}
public TCDMethodState(MethodState source) : base(source.Parent)
{
Initialize(new SystemContext(), source);
}
public ResetAllErrorsMethodState(MethodState source) : base(source)
{
}
public void Execute(MethodState state, Instruction inst)
{
// Does nothing.
}
/// <summary>
/// Does any initialization required before the address space can be used.
/// </summary>
/// <remarks>
/// The externalReferences is an out parameter that allows the node manager to link to nodes
/// in other node managers. For example, the 'Objects' node is managed by the CoreNodeManager and
/// should have a reference to the root folder node(s) exposed by this node manager.
/// </remarks>
public override void CreateAddressSpace(IDictionary <NodeId, IList <IReference> > externalReferences)
{
lock (Lock)
{
#region Setup
IList <IReference> references = null;
if (!externalReferences.TryGetValue(ObjectIds.ObjectsFolder, out references))
{
externalReferences[ObjectIds.ObjectsFolder] = references = new List <IReference>();
}
#endregion
try
{
#region Initialize
string alarmsName = "Alarms";
string alarmsNodeName = alarmsName;
Type alarmControllerType = Type.GetType("Alarms.AlarmController");
int interval = 1000;
string intervalString = interval.ToString();
int conditionTypeIndex = 0;
#endregion
#region Create Alarm Folder
FolderState alarmsFolder = CreateFolder(null, alarmsNodeName, alarmsName);
alarmsFolder.AddReference(ReferenceTypes.Organizes, true, ObjectIds.ObjectsFolder);
references.Add(new NodeStateReference(ReferenceTypes.Organizes, false, alarmsFolder.NodeId));
alarmsFolder.EventNotifier = EventNotifiers.SubscribeToEvents;
AddRootNotifier(alarmsFolder);
#endregion
#region Create Methods
string startMethodName = "Start";
string startMethodNodeName = alarmsNodeName + "." + startMethodName;
MethodState startMethod = AlarmHelpers.CreateMethod(alarmsFolder, NamespaceIndex, startMethodNodeName, startMethodName);
AlarmHelpers.AddStartInputParameters(startMethod, NamespaceIndex);
startMethod.OnCallMethod = new GenericMethodCalledEventHandler(OnStart);
string startBranchMethodName = "StartBranch";
string startBranchMethodNodeName = alarmsNodeName + "." + startBranchMethodName;
MethodState startBranchMethod = AlarmHelpers.CreateMethod(alarmsFolder, NamespaceIndex, startBranchMethodNodeName, startBranchMethodName);
AlarmHelpers.AddStartInputParameters(startBranchMethod, NamespaceIndex);
startBranchMethod.OnCallMethod = new GenericMethodCalledEventHandler(OnStartBranch);
string endMethodName = "End";
string endMethodNodeName = alarmsNodeName + "." + endMethodName;
MethodState endMethod = AlarmHelpers.CreateMethod(alarmsFolder, NamespaceIndex, endMethodNodeName, endMethodName);
endMethod.OnCallMethod = new GenericMethodCalledEventHandler(OnEnd);
#endregion
#region Create Variables
string analogTriggerName = "AnalogSource";
string analogTriggerNodeName = alarmsNodeName + "." + analogTriggerName;
BaseDataVariableState analogTrigger = AlarmHelpers.CreateVariable(alarmsFolder,
NamespaceIndex, analogTriggerNodeName, analogTriggerName);
analogTrigger.OnWriteValue = OnWriteAlarmTrigger;
AlarmController analogAlarmController = (AlarmController)Activator.CreateInstance(alarmControllerType, analogTrigger, interval, false);
SourceController analogSourceController = new SourceController(analogTrigger, analogAlarmController);
m_triggerMap.Add("Analog", analogSourceController);
string booleanTriggerName = "BooleanSource";
string booleanTriggerNodeName = alarmsNodeName + "." + booleanTriggerName;
BaseDataVariableState booleanTrigger = AlarmHelpers.CreateVariable(alarmsFolder,
NamespaceIndex, booleanTriggerNodeName, booleanTriggerName, boolValue: true);
booleanTrigger.OnWriteValue = OnWriteAlarmTrigger;
AlarmController booleanAlarmController = (AlarmController)Activator.CreateInstance(alarmControllerType, booleanTrigger, interval, true);
SourceController booleanSourceController = new SourceController(booleanTrigger, booleanAlarmController);
m_triggerMap.Add("Boolean", booleanSourceController);
#endregion
#region Create Alarms
AlarmHolder mandatoryExclusiveLevel = new ExclusiveLevelHolder(
this,
alarmsFolder,
analogSourceController,
intervalString,
GetSupportedAlarmConditionType(ref conditionTypeIndex),
alarmControllerType,
interval,
optional: false);
m_alarms.Add(mandatoryExclusiveLevel.AlarmNodeName, mandatoryExclusiveLevel);
AlarmHolder mandatoryNonExclusiveLevel = new NonExclusiveLevelHolder(
this,
alarmsFolder,
analogSourceController,
intervalString,
GetSupportedAlarmConditionType(ref conditionTypeIndex),
alarmControllerType,
interval,
optional: false);
m_alarms.Add(mandatoryNonExclusiveLevel.AlarmNodeName, mandatoryNonExclusiveLevel);
AlarmHolder offNormal = new OffNormalAlarmTypeHolder(
this,
alarmsFolder,
booleanSourceController,
intervalString,
GetSupportedAlarmConditionType(ref conditionTypeIndex),
alarmControllerType,
interval,
optional: false);
m_alarms.Add(offNormal.AlarmNodeName, offNormal);
#endregion
AddPredefinedNode(SystemContext, alarmsFolder);
StartTimer();
m_allowEntry = true;
}
catch (Exception e)
{
Utils.LogError(e, "Error creating the AlarmNodeManager address space.");
}
}
}
/// <summary>
/// Method exposed as a node in the server to publish a node to IoT Hub that it is connected to
/// </summary>
private ServiceResult PublishNodeMethod(ISystemContext context, MethodState method, IList <object> inputArguments, IList <object> outputArguments)
{
if (inputArguments[0] == null || inputArguments[1] == null)
{
Trace("PublishNodeMethod: Invalid Arguments!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide all arguments!"));
}
NodeToPublish nodeToPublish;
string nodeId = inputArguments[0] as string;
string endpointUrl = inputArguments[1] as string;
if (string.IsNullOrEmpty(nodeId) || string.IsNullOrEmpty(endpointUrl))
{
Trace($"PublishNodeMethod: Arguments (0 (nodeId): '{nodeId}', 1 (endpointUrl):'{endpointUrl}') are not valid strings!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide all arguments as strings!"));
}
try
{
nodeToPublish = new NodeToPublish(nodeId, endpointUrl);
}
catch (UriFormatException)
{
Trace($"PublishNodeMethod: The endpointUrl is invalid (0 (nodeId): '{nodeId}', 1 (endpointUrl):'{endpointUrl}')!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide a valid OPC UA endpoint URL as second argument!"));
}
// Create session and add item to monitor, what ever is needed.
try
{
// find the session we need to monitor the node
OpcSession opcSession = OpcSessions.First(s => s.EndpointUri == nodeToPublish.EndPointUri);
// Add a new session.
if (opcSession == null)
{
// create new session info.
opcSession = new OpcSession(nodeToPublish.EndPointUri, OpcSessionCreationTimeout);
OpcSessions.Add(opcSession);
Trace($"DoPublish: No matching session found for endpoint '{nodeToPublish.EndPointUri.AbsolutePath}'. Requested to create a new one.");
}
else
{
Trace($"DoPublish: Session found for endpoint '{nodeToPublish.EndPointUri.AbsolutePath}'");
}
// add the node info to the sessions monitored items list.
opcSession.AddNodeForMonitoring(nodeToPublish.NodeId);
Trace("DoPublish: Requested to monitor item.");
// start monitoring the node
Task monitorTask = Task.Run(async() => await opcSession.ConnectAndMonitor());
monitorTask.Wait();
Trace("DoPublish: Session processing completed.");
// update our data
NodesToPublish.Add(nodeToPublish);
// persist it to disk
File.WriteAllText(NodesToPublishAbsFilename, JsonConvert.SerializeObject(NodesToPublish));
Trace($"DoPublish: Now publishing: {nodeToPublish.ToString()}");
return(ServiceResult.Good);
}
catch (Exception e)
{
Trace(e, $"DoPublish: Exception while trying to configure publishing node '{nodeToPublish.ToString()}'");
return(ServiceResult.Create(e, StatusCodes.BadUnexpectedError, $"Unexpected error publishing node: {e.Message}"));
}
}
/// <summary>
/// Handles a request to refresh conditions for a subscription.
/// </summary>
private ServiceResult OnConditionRefresh(
ISystemContext context,
MethodState method,
NodeId objectId,
uint subscriptionId)
{
ServerSystemContext systemContext = context as ServerSystemContext;
if (systemContext == null)
{
systemContext = this.SystemContext;
}
Server.ConditionRefresh(systemContext.OperationContext, subscriptionId);
return ServiceResult.Good;
}
/// <summary>
/// Finds the child with the specified browse name.
/// </summary>
protected override BaseInstanceState FindChild(
ISystemContext context,
QualifiedName browseName,
bool createOrReplace,
BaseInstanceState replacement)
{
if (QualifiedName.IsNull(browseName))
{
return(null);
}
BaseInstanceState instance = null;
switch (browseName.Name)
{
case DataTypeTest.BrowseNames.Name:
{
if (createOrReplace)
{
if (Name == null)
{
if (replacement == null)
{
Name = new PropertyState <string>(this);
}
else
{
Name = (PropertyState <string>)replacement;
}
}
}
instance = Name;
break;
}
case DataTypeTest.BrowseNames.Description:
{
if (createOrReplace)
{
if (Description == null)
{
if (replacement == null)
{
Description = new PropertyState <string>(this);
}
else
{
Description = (PropertyState <string>)replacement;
}
}
}
instance = Description;
break;
}
case DataTypeTest.BrowseNames.Price:
{
if (createOrReplace)
{
if (Price == null)
{
if (replacement == null)
{
Price = new PropertyState(this);
}
else
{
Price = (PropertyState)replacement;
}
}
}
instance = Price;
break;
}
case DataTypeTest.BrowseNames.Dish:
{
if (createOrReplace)
{
if (Dish == null)
{
if (replacement == null)
{
Dish = new MethodState(this);
}
else
{
Dish = (MethodState)replacement;
}
}
}
instance = Dish;
break;
}
case DataTypeTest.BrowseNames.DishId:
{
if (createOrReplace)
{
if (DishId == null)
{
if (replacement == null)
{
DishId = new PropertyState(this);
}
else
{
DishId = (PropertyState)replacement;
}
}
}
instance = DishId;
break;
}
}
if (instance != null)
{
return(instance);
}
return(base.FindChild(context, browseName, createOrReplace, replacement));
}
public MethodState CreateAddMethodState(
NodeState parent, AasUaBaseEntity.CreateMode mode,
string browseDisplayName,
Argument[] inputArgs = null, Argument[] outputArgs = null, NodeId referenceTypeFromParentId = null,
NodeId methodDeclarationId = null, GenericMethodCalledEventHandler onCalled = null)
{
// method node
var m = new MethodState(parent);
m.BrowseName = "" + browseDisplayName;
m.DisplayName = "" + browseDisplayName;
m.Description = new LocalizedText("en", browseDisplayName);
m.NodeId = nodeMgr.New(nodeMgr.SystemContext, mode, m);
if (methodDeclarationId != null)
{
m.MethodDeclarationId = methodDeclarationId;
}
m.Executable = true;
m.UserExecutable = true;
nodeMgr.AddPredefinedNode(nodeMgr.SystemContext, m);
if (parent != null)
{
parent.AddChild(m);
}
if (referenceTypeFromParentId != null)
{
if (parent != null)
{
parent.AddReference(referenceTypeFromParentId, false, m.NodeId);
if (referenceTypeFromParentId == ReferenceTypeIds.HasComponent)
{
m.AddReference(referenceTypeFromParentId, true, parent.NodeId);
}
if (referenceTypeFromParentId == ReferenceTypeIds.HasProperty)
{
m.AddReference(referenceTypeFromParentId, true, parent.NodeId);
}
}
}
// can have inputs, outputs
for (int i = 0; i < 2; i++)
{
// pretty argument list
var arguments = (i == 0) ? inputArgs : outputArgs;
if (arguments == null || arguments.Length < 1)
{
continue;
}
// make a property for this
var prop = CreateAddPropertyState <Argument[]>(
m, mode,
(i == 0) ? "InputArguments" : "OutputArguments",
DataTypeIds.Argument,
arguments,
ReferenceTypeIds.HasProperty,
typeDefinitionId: VariableTypeIds.PropertyType,
valueRank: 1);
// explicitely add arguments ass well?
if (i == 0)
{
m.InputArguments = prop;
}
if (i == 1)
{
m.OutputArguments = prop;
}
}
// event handler
if (onCalled != null)
{
m.OnCallMethod = onCalled;
}
return(m);
}
/// <summary>
/// Finds the child with the specified browse name.
/// </summary>
protected override BaseInstanceState FindChild(
ISystemContext context,
QualifiedName browseName,
bool createOrReplace,
BaseInstanceState replacement)
{
if (QualifiedName.IsNull(browseName))
{
return(null);
}
BaseInstanceState instance = null;
switch (browseName.Name)
{
case DataTypeTest.BrowseNames.Id:
{
if (createOrReplace)
{
if (Id == null)
{
if (replacement == null)
{
Id = new BaseDataVariableState(this);
}
else
{
Id = (BaseDataVariableState)replacement;
}
}
}
instance = Id;
break;
}
case DataTypeTest.BrowseNames.NameNotSet52:
{
if (createOrReplace)
{
if (NameNotSet52 == null)
{
if (replacement == null)
{
NameNotSet52 = new BaseDataVariableState <string>(this);
}
else
{
NameNotSet52 = (BaseDataVariableState <string>)replacement;
}
}
}
instance = NameNotSet52;
break;
}
case DataTypeTest.BrowseNames.Dishes:
{
if (createOrReplace)
{
if (Dishes == null)
{
if (replacement == null)
{
Dishes = new BaseObjectState(this);
}
else
{
Dishes = (BaseObjectState)replacement;
}
}
}
instance = Dishes;
break;
}
case DataTypeTest.BrowseNames.Menu:
{
if (createOrReplace)
{
if (Menu == null)
{
if (replacement == null)
{
Menu = new MethodState(this);
}
else
{
Menu = (MethodState)replacement;
}
}
}
instance = Menu;
break;
}
}
if (instance != null)
{
return(instance);
}
return(base.FindChild(context, browseName, createOrReplace, replacement));
}
/// <summary>
/// Method to start monitoring a node and publish the data to IoTHub. Executes synchronously.
/// </summary>
private ServiceResult OnPublishNodeCall(ISystemContext context, MethodState method, IList <object> inputArguments, IList <object> outputArguments)
{
if (string.IsNullOrEmpty(inputArguments[0] as string) || string.IsNullOrEmpty(inputArguments[1] as string))
{
Trace("PublishNode: Invalid Arguments when trying to publish a node.");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide all arguments as strings!"));
}
NodeId nodeId = null;
ExpandedNodeId expandedNodeId = null;
Uri endpointUri = null;
bool isNodeIdFormat = true;
try
{
string id = inputArguments[0] as string;
if (id.Contains("nsu="))
{
expandedNodeId = ExpandedNodeId.Parse(id);
isNodeIdFormat = false;
}
else
{
nodeId = NodeId.Parse(id);
isNodeIdFormat = true;
}
endpointUri = new Uri(inputArguments[1] as string);
}
catch (UriFormatException)
{
Trace($"PublishNode: The EndpointUri has an invalid format '{inputArguments[1] as string}'!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide a valid OPC UA endpoint URL as second argument!"));
}
catch (Exception e)
{
Trace(e, $"PublishNode: The NodeId has an invalid format '{inputArguments[0] as string}'!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide a valid OPC UA NodeId in NodeId or ExpandedNodeId format as first argument!"));
}
// find/create a session to the endpoint URL and start monitoring the node.
try
{
// lock the publishing configuration till we are done
OpcSessionsListSemaphore.Wait();
if (ShutdownTokenSource.IsCancellationRequested)
{
return(ServiceResult.Create(StatusCodes.BadUnexpectedError, $"Publisher shutdown in progress."));
}
// find the session we need to monitor the node
OpcSession opcSession = null;
opcSession = OpcSessions.FirstOrDefault(s => s.EndpointUri.AbsoluteUri.Equals(endpointUri.AbsoluteUri, StringComparison.OrdinalIgnoreCase));
// add a new session.
if (opcSession == null)
{
// create new session info.
opcSession = new OpcSession(endpointUri, true, OpcSessionCreationTimeout);
OpcSessions.Add(opcSession);
Trace($"PublishNode: No matching session found for endpoint '{endpointUri.OriginalString}'. Requested to create a new one.");
}
if (isNodeIdFormat)
{
// add the node info to the subscription with the default publishing interval, execute syncronously
Trace($"PublishNode: Request to monitor item with NodeId '{nodeId.ToString()}' (PublishingInterval: {OpcPublishingInterval}, SamplingInterval: {OpcSamplingInterval})");
opcSession.AddNodeForMonitoringAsync(nodeId, null, OpcPublishingInterval, OpcSamplingInterval, ShutdownTokenSource.Token).Wait();
}
else
{
// add the node info to the subscription with the default publishing interval, execute syncronously
Trace($"PublishNode: Request to monitor item with ExpandedNodeId '{expandedNodeId.ToString()}' (PublishingInterval: {OpcPublishingInterval}, SamplingInterval: {OpcSamplingInterval})");
opcSession.AddNodeForMonitoringAsync(null, expandedNodeId, OpcPublishingInterval, OpcSamplingInterval, ShutdownTokenSource.Token).Wait();
}
}
catch (Exception e)
{
Trace(e, $"PublishNode: Exception while trying to configure publishing node '{(isNodeIdFormat ? nodeId.ToString() : expandedNodeId.ToString())}'");
return(ServiceResult.Create(e, StatusCodes.BadUnexpectedError, $"Unexpected error publishing node: {e.Message}"));
}
finally
{
OpcSessionsListSemaphore.Release();
}
return(ServiceResult.Good);
}
protected override ServiceResult Call(ISystemContext context, CallMethodRequest methodToCall, MethodState method, CallMethodResult result)
{
if (methodToCall.MethodId == new NodeId("Robot1_Stop", NamespaceIndex))
{
_mode.Value = (short)1;
_mode.Timestamp = DateTime.UtcNow;
_mode.ClearChangeMasks(SystemContext, false);
_laser.Value = false;
_laser.Timestamp = DateTime.UtcNow;
_laser.ClearChangeMasks(SystemContext, false);
result.StatusCode = StatusCodes.Good;
return(StatusCodes.Good);
}
if (methodToCall.MethodId == new NodeId("Robot1_Multiply", NamespaceIndex))
{
try
{
var a = Convert.ToDouble(methodToCall.InputArguments[0].Value);
var b = Convert.ToDouble(methodToCall.InputArguments[1].Value);
result.OutputArguments.Add(new Variant(a * b));
result.StatusCode = StatusCodes.Good;
return(StatusCodes.Good);
}
catch (Exception e)
{
Console.WriteLine(e);
result.StatusCode = StatusCodes.BadInvalidArgument;
return(StatusCodes.BadInvalidArgument);
}
}
return(base.Call(context, methodToCall, method, result));
}
private ServiceResult UpdateCertificate(
ISystemContext context,
MethodState method,
NodeId objectId,
NodeId certificateGroupId,
NodeId certificateTypeId,
byte[] certificate,
byte[][] issuerCertificates,
string privateKeyFormat,
byte[] privateKey,
ref bool applyChangesRequired)
{
HasApplicationSecureAdminAccess(context);
if (certificate == null)
{
throw new ArgumentNullException(nameof(certificate));
}
privateKeyFormat = privateKeyFormat?.ToUpper();
if (!(String.IsNullOrEmpty(privateKeyFormat) || privateKeyFormat == "PEM" || privateKeyFormat == "PFX"))
{
throw new ServiceResultException(StatusCodes.BadNotSupported, "The private key format is not supported.");
}
ServerCertificateGroup certificateGroup = VerifyGroupAndTypeId(certificateGroupId, certificateTypeId);
certificateGroup.UpdateCertificate = null;
X509Certificate2Collection newIssuerCollection = new X509Certificate2Collection();
X509Certificate2 newCert;
try
{
// build issuer chain
if (issuerCertificates != null)
{
foreach (byte[] issuerRawCert in issuerCertificates)
{
var newIssuerCert = new X509Certificate2(issuerRawCert);
newIssuerCollection.Add(newIssuerCert);
}
}
newCert = new X509Certificate2(certificate);
}
catch
{
throw new ServiceResultException(StatusCodes.BadCertificateInvalid, "Certificate data is invalid.");
}
// load existing application cert and private key
if (!Utils.CompareDistinguishedName(certificateGroup.ApplicationCertificate.SubjectName, newCert.SubjectName.Name))
{
throw new ServiceResultException(StatusCodes.BadSecurityChecksFailed, "Subject Name of new certificate doesn't match the application.");
}
// self signed
bool selfSigned = Utils.CompareDistinguishedName(newCert.Subject, newCert.Issuer);
if (selfSigned && newIssuerCollection.Count != 0)
{
throw new ServiceResultException(StatusCodes.BadCertificateInvalid, "Issuer list not empty for self signed certificate.");
}
if (!selfSigned)
{
try
{
// verify cert with issuer chain
CertificateValidator certValidator = new CertificateValidator();
CertificateTrustList issuerStore = new CertificateTrustList();
CertificateIdentifierCollection issuerCollection = new CertificateIdentifierCollection();
foreach (var issuerCert in newIssuerCollection)
{
issuerCollection.Add(new CertificateIdentifier(issuerCert));
}
issuerStore.TrustedCertificates = issuerCollection;
certValidator.Update(issuerStore, issuerStore, null);
certValidator.Validate(newCert);
}
catch
{
throw new ServiceResultException(StatusCodes.BadSecurityChecksFailed, "Failed to verify integrity of the new certificate and the issuer list.");
}
}
var updateCertificate = new UpdateCertificateData();
try
{
string password = String.Empty;
switch (privateKeyFormat)
{
case null:
case "":
{
X509Certificate2 certWithPrivateKey = certificateGroup.ApplicationCertificate.LoadPrivateKey(password).Result;
updateCertificate.CertificateWithPrivateKey = CertificateFactory.CreateCertificateWithPrivateKey(newCert, certWithPrivateKey);
break;
}
case "PFX":
{
X509Certificate2 certWithPrivateKey = CertificateFactory.CreateCertificateFromPKCS12(privateKey, password);
updateCertificate.CertificateWithPrivateKey = CertificateFactory.CreateCertificateWithPrivateKey(newCert, certWithPrivateKey);
break;
}
case "PEM":
{
updateCertificate.CertificateWithPrivateKey = CertificateFactory.CreateCertificateWithPEMPrivateKey(newCert, privateKey, password);
break;
}
}
updateCertificate.IssuerCollection = newIssuerCollection;
updateCertificate.SessionId = context.SessionId;
}
catch
{
throw new ServiceResultException(StatusCodes.BadSecurityChecksFailed, "Failed to verify integrity of the new certificate and the private key.");
}
certificateGroup.UpdateCertificate = updateCertificate;
applyChangesRequired = true;
return(ServiceResult.Good);
}
public override void Execute(MethodContext context, MethodState state, object localInx = null)
{
base.Execute(context, state, 1);
}
private static void EmitClassMethod(MethodJITInfo method, IntPtr objectptr, IntPtr methodptr, TypeBuilder builder, FieldBuilder addressAssistant)
{
MethodState state = new MethodState();
state.NativeArgs.Add(typeof(IntPtr)); // thisptr
state.ReturnTypeByStack = method.ReturnType.DetermineProps();
if (state.ReturnTypeByStack)
{
// ref to the native return type
state.NativeArgs.Add(method.ReturnType.NativeType.MakeByRefType());
state.NativeReturn = null;
}
else if (method.ReturnType.IsStringClass)
{
// special case for strings, we will marshal it in ourselves
state.NativeReturn = typeof(IntPtr);
}
else
{
state.NativeReturn = method.ReturnType.NativeType;
}
state.MethodReturn = method.ReturnType.Type;
foreach (TypeJITInfo typeInfo in method.Args)
{
// populate MethodArgs and NativeArgs now
typeInfo.DetermineProps();
state.MethodArgs.Add(typeInfo.Type);
if (typeInfo.IsStringClass)
{
// we need to specially marshal strings
state.NativeArgs.Add(typeof(IntPtr));
}
else
if (!typeInfo.IsParams)
{
if (typeInfo.IsByRef && typeInfo.NativeType.IsValueType)
{
state.NativeArgs.Add(typeInfo.NativeType.MakeByRefType());
}
else
{
state.NativeArgs.Add(typeInfo.NativeType);
}
}
}
// add a native version parameter if the return type is detected as a versioned class
if (method.ReturnType.IsGeneric || (method.ReturnType.IsCreatableClass && method.ReturnType.IsInterfaceVersioned))
{
state.NativeArgs.Add(typeof(string));
}
MethodBuilder mbuilder = builder.DefineMethod(method.Name, MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.NewSlot | MethodAttributes.Virtual, CallingConventions.HasThis);
if (method.ReturnType.IsGeneric)
{
// create generic param
GenericTypeParameterBuilder[] gtypeParameters;
gtypeParameters = mbuilder.DefineGenericParameters(new string[] { "TClass" });
state.MethodReturn = gtypeParameters[0];
gtypeParameters[0].SetGenericParameterAttributes(GenericParameterAttributes.ReferenceTypeConstraint);
}
mbuilder.SetReturnType(state.MethodReturn);
mbuilder.SetParameters(state.MethodArgs.ToArray());
builder.DefineMethodOverride(mbuilder, method.MethodInfo);
ILGenerator ilgen = mbuilder.GetILGenerator();
// load object pointer
EmitPlatformLoad(ilgen, objectptr);
if (state.ReturnTypeByStack)
{
// allocate local to hold the return
state.localReturn = ilgen.DeclareLocal(method.ReturnType.NativeType);
state.localReturn.SetLocalSymInfo("nativeReturnPlaceholder");
ilgen.Emit(OpCodes.Ldloca_S, state.localReturn.LocalIndex);
}
int argindex = 0;
foreach (TypeJITInfo typeInfo in method.Args)
{
argindex++;
// perform any conversions necessary
if (typeInfo.NativeType != typeInfo.Type && typeInfo.IsByRef)
{
LocalBuilder localArg = ilgen.DeclareLocal(typeInfo.NativeType);
localArg.SetLocalSymInfo("byrefarg" + argindex);
var helper = new MethodState.RefArgLocal();
helper.builder = localArg;
helper.argIndex = argindex;
helper.paramType = typeInfo.PierceType;
state.refargLocals.Add(helper);
ilgen.Emit(OpCodes.Ldloca_S, localArg);
}
else if (typeInfo.NativeType != typeInfo.Type && !typeInfo.Type.IsEnum)
{
EmitPrettyLoad(ilgen, argindex);
ilgen.EmitCall(OpCodes.Call, typeInfo.Type.GetMethod("GetValue"), null);
}
else
{
EmitPrettyLoad(ilgen, argindex);
}
if ((typeInfo.IsStringClass || typeInfo.IsParams) && method.HasParams)
{
if (!typeInfo.IsParams)
{
continue;
}
ilgen.EmitCall(OpCodes.Call, typeof(String).GetMethod("Format", BindingFlags.Public | BindingFlags.Static, null, new Type[] { typeof(string), typeof(object[]) }, null), null);
}
if (typeInfo.IsStringClass || typeInfo.IsParams)
{
LocalBuilder localString = ilgen.DeclareLocal(typeof(GCHandle));
localString.SetLocalSymInfo("nativeString" + argindex);
state.unmanagedMemory.Add(localString);
// we need to specially marshal strings
ilgen.Emit(OpCodes.Ldloca, localString.LocalIndex);
ilgen.EmitCall(OpCodes.Call, typeof(InteropHelp).GetMethod("EncodeUTF8String"), null);
}
else if (typeInfo.IsCreatableClass)
{
// if this argument is a class we understand: get the object pointer
ilgen.Emit(OpCodes.Ldfld, addressAssistant);
}
}
if (method.ReturnType.IsGeneric || (method.ReturnType.IsCreatableClass && method.ReturnType.IsInterfaceVersioned))
{
ilgen.Emit(OpCodes.Ldtoken, method.ReturnType.Type);
ilgen.EmitCall(OpCodes.Call, typeof(Type).GetMethod("GetTypeFromHandle", BindingFlags.Static | BindingFlags.Public), null);
ilgen.EmitCall(OpCodes.Call, typeof(InterfaceVersions).GetMethod("GetInterfaceIdentifier", BindingFlags.Static | BindingFlags.Public), null);
}
// load vtable method pointer
EmitPlatformLoad(ilgen, methodptr);
CallingConvention ccv = CallingConvention.ThisCall;
if (method.HasParams)
{
ccv = CallingConvention.Cdecl;
}
if (state.NativeReturn == typeof(bool))
{
state.NativeReturn = typeof(byte);
}
ilgen.EmitCalli(OpCodes.Calli, ccv, state.NativeReturn, state.NativeArgs.ToArray());
// populate byref args
foreach (var local in state.refargLocals)
{
EmitPrettyLoad(ilgen, local.argIndex);
EmitPrettyLoadLocal(ilgen, local.builder.LocalIndex);
ilgen.Emit(OpCodes.Newobj, local.paramType.GetConstructor(new Type[] { local.builder.LocalType }));
ilgen.Emit(OpCodes.Stind_Ref);
}
// clean up unmanaged memory
foreach (LocalBuilder localbuilder in state.unmanagedMemory)
{
ilgen.Emit(OpCodes.Ldloca, localbuilder.LocalIndex);
ilgen.EmitCall(OpCodes.Call, typeof(InteropHelp).GetMethod("FreeString"), null);
}
if (state.ReturnTypeByStack)
{
EmitPrettyLoadLocal(ilgen, state.localReturn.LocalIndex);
// reconstruct return type
if (state.localReturn.LocalType != state.MethodReturn)
{
ilgen.Emit(OpCodes.Newobj, state.MethodReturn.GetConstructor(new Type[] { state.localReturn.LocalType }));
}
}
else if (method.ReturnType.IsCreatableClass)
{
if (method.ReturnType.IsGeneric)
{
ilgen.EmitCall(OpCodes.Call, typeof(JITEngine).GetMethod("GenerateClass", BindingFlags.Static | BindingFlags.Public), null);
}
else if (method.ReturnType.IsDelegate)
{
ilgen.Emit(OpCodes.Ldtoken, method.ReturnType.Type);
ilgen.EmitCall(OpCodes.Call, typeof(Type).GetMethod("GetTypeFromHandle"), null);
ilgen.EmitCall(OpCodes.Call, typeof(Marshal).GetMethod("GetDelegateForFunctionPointer", BindingFlags.Static | BindingFlags.Public), null);
ilgen.Emit(OpCodes.Castclass, method.ReturnType.Type);
}
else
{
ilgen.EmitCall(OpCodes.Call, typeof(JITEngine).GetMethod("GenerateClass", BindingFlags.Static | BindingFlags.Public).MakeGenericMethod(method.ReturnType.Type), null);
}
}
else if (method.ReturnType.IsStringClass)
{
// marshal string return
ilgen.EmitCall(OpCodes.Call, typeof(InteropHelp).GetMethod("DecodeUTF8String"), null);
}
ilgen.Emit(OpCodes.Ret);
}
private ServiceResult Open(
ISystemContext context,
MethodState method,
NodeId objectId,
OpenFileMode mode,
TrustListMasks masks,
ref uint fileHandle)
{
HasSecureReadAccess(context);
if (mode == OpenFileMode.Read)
{
HasSecureReadAccess(context);
}
else if (mode == (OpenFileMode.Write | OpenFileMode.EraseExisting))
{
HasSecureWriteAccess(context);
}
else
{
return(StatusCodes.BadNotWritable);
}
lock (m_lock)
{
if (m_sessionId != null)
{
// to avoid deadlocks, last open always wins
m_sessionId = null;
m_strm = null;
m_node.OpenCount.Value = 0;
}
m_readMode = mode == OpenFileMode.Read;
m_sessionId = context.SessionId;
fileHandle = ++m_fileHandle;
TrustListDataType trustList = new TrustListDataType()
{
SpecifiedLists = (uint)masks
};
using (ICertificateStore store = CertificateStoreIdentifier.OpenStore(m_trustedStorePath))
{
if ((masks & TrustListMasks.TrustedCertificates) != 0)
{
X509Certificate2Collection certificates = store.Enumerate().Result;
foreach (var certificate in certificates)
{
trustList.TrustedCertificates.Add(certificate.RawData);
}
}
if ((masks & TrustListMasks.TrustedCrls) != 0)
{
foreach (var crl in store.EnumerateCRLs())
{
trustList.TrustedCrls.Add(crl.RawData);
}
}
}
using (ICertificateStore store = CertificateStoreIdentifier.OpenStore(m_issuerStorePath))
{
if ((masks & TrustListMasks.IssuerCertificates) != 0)
{
X509Certificate2Collection certificates = store.Enumerate().Result;
foreach (var certificate in certificates)
{
trustList.IssuerCertificates.Add(certificate.RawData);
}
}
if ((masks & TrustListMasks.IssuerCrls) != 0)
{
foreach (var crl in store.EnumerateCRLs())
{
trustList.IssuerCrls.Add(crl.RawData);
}
}
}
if (m_readMode)
{
m_strm = EncodeTrustListData(context, trustList);
}
else
{
m_strm = new MemoryStream(DefaultTrustListCapacity);
}
m_node.OpenCount.Value = 1;
}
return(ServiceResult.Good);
}
private ServiceResult RemoveCertificate(
ISystemContext context,
MethodState method,
NodeId objectId,
string thumbprint,
bool isTrustedCertificate)
{
HasSecureWriteAccess(context);
lock (m_lock)
{
if (m_sessionId != null)
{
return(StatusCodes.BadInvalidState);
}
if (String.IsNullOrEmpty(thumbprint))
{
return(StatusCodes.BadInvalidArgument);
}
using (ICertificateStore store = CertificateStoreIdentifier.OpenStore(isTrustedCertificate ? m_trustedStorePath : m_issuerStorePath))
{
var certCollection = store.FindByThumbprint(thumbprint).Result;
if (certCollection.Count == 0)
{
return(StatusCodes.BadInvalidArgument);
}
// delete all CRLs signed by cert
var crlsToDelete = new List <X509CRL>();
foreach (var crl in store.EnumerateCRLs())
{
foreach (var cert in certCollection)
{
if (Utils.CompareDistinguishedName(cert.Subject, crl.Issuer) &&
crl.VerifySignature(cert, false))
{
crlsToDelete.Add(crl);
break;
}
}
}
if (!store.Delete(thumbprint).Result)
{
return(StatusCodes.BadInvalidArgument);
}
foreach (var crl in crlsToDelete)
{
if (!store.DeleteCRL(crl))
{
// intentionally ignore errors, try best effort
Utils.Trace("RemoveCertificate: Failed to delete CRL {0}.", crl.ToString());
}
}
}
m_node.LastUpdateTime.Value = DateTime.UtcNow;
}
return(ServiceResult.Good);
}
/// <summary>
/// Imports a node from the set.
/// </summary>
private NodeState Import(ISystemContext context, UANode node)
{
NodeState importedNode = null;
NodeClass nodeClass = NodeClass.Unspecified;
if (node is UAObject)
{
nodeClass = NodeClass.Object;
}
else if (node is UAVariable)
{
nodeClass = NodeClass.Variable;
}
else if (node is UAMethod)
{
nodeClass = NodeClass.Method;
}
else if (node is UAObjectType)
{
nodeClass = NodeClass.ObjectType;
}
else if (node is UAVariableType)
{
nodeClass = NodeClass.VariableType;
}
else if (node is UADataType)
{
nodeClass = NodeClass.DataType;
}
else if (node is UAReferenceType)
{
nodeClass = NodeClass.ReferenceType;
}
else if (node is UAView)
{
nodeClass = NodeClass.View;
}
switch (nodeClass)
{
case NodeClass.Object:
{
UAObject o = (UAObject)node;
BaseObjectState value = new BaseObjectState(null);
value.EventNotifier = o.EventNotifier;
importedNode = value;
break;
}
case NodeClass.Variable:
{
UAVariable o = (UAVariable)node;
NodeId typeDefinitionId = null;
if (node.References != null)
{
for (int ii = 0; ii < node.References.Length; ii++)
{
Opc.Ua.NodeId referenceTypeId = ImportNodeId(node.References[ii].ReferenceType, context.NamespaceUris, true);
bool isInverse = !node.References[ii].IsForward;
Opc.Ua.ExpandedNodeId targetId = ImportExpandedNodeId(node.References[ii].Value, context.NamespaceUris, context.ServerUris);
if (referenceTypeId == ReferenceTypeIds.HasTypeDefinition && !isInverse)
{
typeDefinitionId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
break;
}
}
}
BaseVariableState value = null;
if (typeDefinitionId == Opc.Ua.VariableTypeIds.PropertyType)
{
value = new PropertyState(null);
}
else
{
value = new BaseDataVariableState(null);
}
value.DataType = ImportNodeId(o.DataType, context.NamespaceUris, true);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = ImportArrayDimensions(o.ArrayDimensions);
value.AccessLevelEx = o.AccessLevel;
value.UserAccessLevel = (byte)(o.AccessLevel & 0xFF);
value.MinimumSamplingInterval = o.MinimumSamplingInterval;
value.Historizing = o.Historizing;
if (o.Value != null)
{
XmlDecoder decoder = CreateDecoder(context, o.Value);
TypeInfo typeInfo = null;
value.Value = decoder.ReadVariantContents(out typeInfo);
decoder.Close();
}
importedNode = value;
break;
}
case NodeClass.Method:
{
UAMethod o = (UAMethod)node;
MethodState value = new MethodState(null);
value.Executable = o.Executable;
value.UserExecutable = o.Executable;
value.TypeDefinitionId = ImportNodeId(o.MethodDeclarationId, context.NamespaceUris, true);
importedNode = value;
break;
}
case NodeClass.View:
{
UAView o = (UAView)node;
ViewState value = new ViewState();
value.ContainsNoLoops = o.ContainsNoLoops;
importedNode = value;
break;
}
case NodeClass.ObjectType:
{
UAObjectType o = (UAObjectType)node;
BaseObjectTypeState value = new BaseObjectTypeState();
value.IsAbstract = o.IsAbstract;
importedNode = value;
break;
}
case NodeClass.VariableType:
{
UAVariableType o = (UAVariableType)node;
BaseVariableTypeState value = new BaseDataVariableTypeState();
value.IsAbstract = o.IsAbstract;
value.DataType = ImportNodeId(o.DataType, context.NamespaceUris, true);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = ImportArrayDimensions(o.ArrayDimensions);
if (o.Value != null)
{
XmlDecoder decoder = CreateDecoder(context, o.Value);
TypeInfo typeInfo = null;
value.Value = decoder.ReadVariantContents(out typeInfo);
decoder.Close();
}
importedNode = value;
break;
}
case NodeClass.DataType:
{
UADataType o = (UADataType)node;
DataTypeState value = new DataTypeState();
value.IsAbstract = o.IsAbstract;
Opc.Ua.DataTypeDefinition dataTypeDefinition = Import(o, o.Definition, context.NamespaceUris);
value.DataTypeDefinition = new ExtensionObject(dataTypeDefinition);
value.Purpose = o.Purpose;
value.DataTypeModifier = DataTypeModifier.None;
if (o.Definition != null)
{
if (o.Definition.IsOptionSet)
{
value.DataTypeModifier = DataTypeModifier.OptionSet;
}
else if (o.Definition.IsUnion)
{
value.DataTypeModifier = DataTypeModifier.Union;
}
}
importedNode = value;
break;
}
case NodeClass.ReferenceType:
{
UAReferenceType o = (UAReferenceType)node;
ReferenceTypeState value = new ReferenceTypeState();
value.IsAbstract = o.IsAbstract;
value.InverseName = Import(o.InverseName);
value.Symmetric = o.Symmetric;
importedNode = value;
break;
}
}
importedNode.NodeId = ImportNodeId(node.NodeId, context.NamespaceUris, false);
importedNode.BrowseName = ImportQualifiedName(node.BrowseName, context.NamespaceUris);
importedNode.DisplayName = Import(node.DisplayName);
if (importedNode.DisplayName == null)
{
importedNode.DisplayName = new Ua.LocalizedText(importedNode.BrowseName.Name);
}
importedNode.Description = Import(node.Description);
importedNode.Categories = (node.Category != null && node.Category.Length > 0) ? node.Category : null;
importedNode.ReleaseStatus = node.ReleaseStatus;
importedNode.WriteMask = (AttributeWriteMask)node.WriteMask;
importedNode.UserWriteMask = (AttributeWriteMask)node.UserWriteMask;
if (!String.IsNullOrEmpty(node.SymbolicName))
{
importedNode.SymbolicName = node.SymbolicName;
}
if (node.References != null)
{
BaseInstanceState instance = importedNode as BaseInstanceState;
BaseTypeState type = importedNode as BaseTypeState;
for (int ii = 0; ii < node.References.Length; ii++)
{
Opc.Ua.NodeId referenceTypeId = ImportNodeId(node.References[ii].ReferenceType, context.NamespaceUris, true);
bool isInverse = !node.References[ii].IsForward;
Opc.Ua.ExpandedNodeId targetId = ImportExpandedNodeId(node.References[ii].Value, context.NamespaceUris, context.ServerUris);
if (instance != null)
{
if (referenceTypeId == ReferenceTypeIds.HasModellingRule && !isInverse)
{
instance.ModellingRuleId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
continue;
}
if (referenceTypeId == ReferenceTypeIds.HasTypeDefinition && !isInverse)
{
instance.TypeDefinitionId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
continue;
}
}
if (type != null)
{
if (referenceTypeId == ReferenceTypeIds.HasSubtype && isInverse)
{
type.SuperTypeId = Opc.Ua.ExpandedNodeId.ToNodeId(targetId, context.NamespaceUris);
continue;
}
}
importedNode.AddReference(referenceTypeId, isInverse, targetId);
}
}
return(importedNode);
}
/// <summary>
/// Adds a node to the set.
/// </summary>
public void Export(ISystemContext context, NodeState node, bool outputRedundantNames = true)
{
if (node == null)
{
throw new ArgumentNullException(nameof(node));
}
if (Opc.Ua.NodeId.IsNull(node.NodeId))
{
throw new ArgumentException("A non-null NodeId must be specified.");
}
UANode exportedNode = null;
switch (node.NodeClass)
{
case NodeClass.Object:
{
BaseObjectState o = (BaseObjectState)node;
UAObject value = new UAObject();
value.EventNotifier = o.EventNotifier;
if (o.Parent != null)
{
value.ParentNodeId = ExportAlias(o.Parent.NodeId, context.NamespaceUris);
}
exportedNode = value;
break;
}
case NodeClass.Variable:
{
BaseVariableState o = (BaseVariableState)node;
UAVariable value = new UAVariable();
value.DataType = ExportAlias(o.DataType, context.NamespaceUris);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = Export(o.ArrayDimensions);
value.AccessLevel = o.AccessLevelEx;
value.MinimumSamplingInterval = o.MinimumSamplingInterval;
value.Historizing = o.Historizing;
if (o.Parent != null)
{
value.ParentNodeId = ExportAlias(o.Parent.NodeId, context.NamespaceUris);
}
if (o.Value != null)
{
XmlEncoder encoder = CreateEncoder(context);
Variant variant = new Variant(o.Value);
encoder.WriteVariantContents(variant.Value, variant.TypeInfo);
XmlDocument document = new XmlDocument();
document.InnerXml = encoder.Close();
value.Value = document.DocumentElement;
}
exportedNode = value;
break;
}
case NodeClass.Method:
{
MethodState o = (MethodState)node;
UAMethod value = new UAMethod();
value.Executable = o.Executable;
if (o.TypeDefinitionId != o.NodeId)
{
value.MethodDeclarationId = Export(o.TypeDefinitionId, context.NamespaceUris);
}
if (o.Parent != null)
{
value.ParentNodeId = ExportAlias(o.Parent.NodeId, context.NamespaceUris);
}
exportedNode = value;
break;
}
case NodeClass.View:
{
ViewState o = (ViewState)node;
UAView value = new UAView();
value.ContainsNoLoops = o.ContainsNoLoops;
exportedNode = value;
break;
}
case NodeClass.ObjectType:
{
BaseObjectTypeState o = (BaseObjectTypeState)node;
UAObjectType value = new UAObjectType();
value.IsAbstract = o.IsAbstract;
exportedNode = value;
break;
}
case NodeClass.VariableType:
{
BaseVariableTypeState o = (BaseVariableTypeState)node;
UAVariableType value = new UAVariableType();
value.IsAbstract = o.IsAbstract;
value.DataType = ExportAlias(o.DataType, context.NamespaceUris);
value.ValueRank = o.ValueRank;
value.ArrayDimensions = Export(o.ArrayDimensions);
if (o.Value != null)
{
XmlEncoder encoder = CreateEncoder(context);
Variant variant = new Variant(o.Value);
encoder.WriteVariantContents(variant.Value, variant.TypeInfo);
XmlDocument document = new XmlDocument();
document.InnerXml = encoder.Close();
value.Value = document.DocumentElement;
}
exportedNode = value;
break;
}
case NodeClass.DataType:
{
DataTypeState o = (DataTypeState)node;
UADataType value = new UADataType();
value.IsAbstract = o.IsAbstract;
value.Definition = Export(o, o.DataTypeDefinition, context.NamespaceUris, outputRedundantNames);
value.Purpose = o.Purpose;
exportedNode = value;
break;
}
case NodeClass.ReferenceType:
{
ReferenceTypeState o = (ReferenceTypeState)node;
UAReferenceType value = new UAReferenceType();
value.IsAbstract = o.IsAbstract;
if (!Opc.Ua.LocalizedText.IsNullOrEmpty(o.InverseName))
{
value.InverseName = Export(new Opc.Ua.LocalizedText[] { o.InverseName });
}
value.Symmetric = o.Symmetric;
exportedNode = value;
break;
}
}
exportedNode.NodeId = Export(node.NodeId, context.NamespaceUris);
exportedNode.BrowseName = Export(node.BrowseName, context.NamespaceUris);
if (outputRedundantNames || node.DisplayName.Text != node.BrowseName.Name)
{
exportedNode.DisplayName = Export(new Opc.Ua.LocalizedText[] { node.DisplayName });
}
else
{
exportedNode.DisplayName = null;
}
if (node.Description != null && !String.IsNullOrEmpty(node.Description.Text))
{
exportedNode.Description = Export(new Opc.Ua.LocalizedText[] { node.Description });
}
else
{
exportedNode.Description = new LocalizedText[0];
}
exportedNode.Category = (node.Categories != null && node.Categories.Count > 0) ? new List <string>(node.Categories).ToArray() : null;
exportedNode.ReleaseStatus = node.ReleaseStatus;
exportedNode.WriteMask = (uint)node.WriteMask;
exportedNode.UserWriteMask = (uint)node.UserWriteMask;
if (!String.IsNullOrEmpty(node.SymbolicName) && node.SymbolicName != node.BrowseName.Name)
{
exportedNode.SymbolicName = node.SymbolicName;
}
// export references.
INodeBrowser browser = node.CreateBrowser(context, null, null, true, BrowseDirection.Both, null, null, true);
List <Reference> exportedReferences = new List <Reference>();
IReference reference = browser.Next();
while (reference != null)
{
if (node.NodeClass == NodeClass.Method)
{
if (!reference.IsInverse && reference.ReferenceTypeId == ReferenceTypeIds.HasTypeDefinition)
{
reference = browser.Next();
continue;
}
}
Reference exportedReference = new Reference();
exportedReference.ReferenceType = ExportAlias(reference.ReferenceTypeId, context.NamespaceUris);
exportedReference.IsForward = !reference.IsInverse;
exportedReference.Value = Export(reference.TargetId, context.NamespaceUris, context.ServerUris);
exportedReferences.Add(exportedReference);
reference = browser.Next();
}
exportedNode.References = exportedReferences.ToArray();
// add node to list.
UANode[] nodes = null;
int count = 1;
if (this.Items == null)
{
nodes = new UANode[count];
}
else
{
count += this.Items.Length;
nodes = new UANode[count];
Array.Copy(this.Items, nodes, this.Items.Length);
}
nodes[count - 1] = exportedNode;
this.Items = nodes;
// recusively process children.
List <BaseInstanceState> children = new List <BaseInstanceState>();
node.GetChildren(context, children);
for (int ii = 0; ii < children.Count; ii++)
{
Export(context, children[ii], outputRedundantNames);
}
}
/// <summary>
/// Method to start monitoring a node and publish the data to IoTHub. Executes synchronously.
/// </summary>
private ServiceResult OnPublishNodeCall(ISystemContext context, MethodState method, IList <object> inputArguments, IList <object> outputArguments)
{
string logPrefix = "OnPublishNodeCall:";
if (string.IsNullOrEmpty(inputArguments[0] as string) || string.IsNullOrEmpty(inputArguments[1] as string))
{
Logger.Error($"{logPrefix} Invalid Arguments when trying to publish a node.");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide all arguments as strings!"));
}
HttpStatusCode statusCode = HttpStatusCode.InternalServerError;
NodeId nodeId = null;
ExpandedNodeId expandedNodeId = null;
Uri endpointUri = null;
bool isNodeIdFormat = true;
try
{
string id = inputArguments[0] as string;
if (id.Contains("nsu=", StringComparison.InvariantCulture))
{
expandedNodeId = ExpandedNodeId.Parse(id);
isNodeIdFormat = false;
}
else
{
nodeId = NodeId.Parse(id);
isNodeIdFormat = true;
}
endpointUri = new Uri(inputArguments[1] as string);
}
catch (UriFormatException)
{
Logger.Error($"{logPrefix} The EndpointUrl has an invalid format '{inputArguments[1] as string}'!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide a valid OPC UA endpoint URL as second argument!"));
}
catch (Exception e)
{
Logger.Error(e, $"{logPrefix} The NodeId has an invalid format '{inputArguments[0] as string}'!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide a valid OPC UA NodeId in NodeId or ExpandedNodeId format as first argument!"));
}
// find/create a session to the endpoint URL and start monitoring the node.
try
{
// lock the publishing configuration till we are done
NodeConfiguration.OpcSessionsListSemaphore.Wait();
if (ShutdownTokenSource.IsCancellationRequested)
{
return(ServiceResult.Create(StatusCodes.BadUnexpectedError, $"Publisher shutdown in progress."));
}
// find the session we need to monitor the node
IOpcSession opcSession = null;
opcSession = NodeConfiguration.OpcSessions.FirstOrDefault(s => s.EndpointUrl.Equals(endpointUri.OriginalString, StringComparison.OrdinalIgnoreCase));
// add a new session.
if (opcSession == null)
{
// create new session info.
// endpointName is null here. Since we currently do not have to support configuration of OPC Publisher by OPC server this is ok for now.
opcSession = new OpcSession(Guid.NewGuid(), null, endpointUri.OriginalString, true, OpcSessionCreationTimeout, OpcAuthenticationMode.Anonymous, null);
NodeConfiguration.OpcSessions.Add(opcSession);
Logger.Information($"OnPublishNodeCall: No matching session found for endpoint '{endpointUri.OriginalString}'. Requested to create a new one.");
}
// Add a node. The key for the new node is the node id / expanded node id
if (isNodeIdFormat)
{
// add the node info to the subscription with the default publishing interval, execute syncronously
Logger.Debug($"{logPrefix} Request to monitor item with NodeId '{nodeId.ToString()}' (with default PublishingInterval and SamplingInterval)");
statusCode = opcSession.AddNodeForMonitoringAsync(nodeId, null, null, null, nodeId.ToString(), null, null, null, ShutdownTokenSource.Token, null).Result;
}
else
{
// add the node info to the subscription with the default publishing interval, execute syncronously
Logger.Debug($"{logPrefix} Request to monitor item with ExpandedNodeId '{expandedNodeId.ToString()}' (with default PublishingInterval and SamplingInterval)");
statusCode = opcSession.AddNodeForMonitoringAsync(null, expandedNodeId, null, null, expandedNodeId.ToString(), null, null, null, ShutdownTokenSource.Token, null).Result;
}
}
catch (Exception e)
{
Logger.Error(e, $"{logPrefix} Exception while trying to configure publishing node '{(isNodeIdFormat ? nodeId.ToString() : expandedNodeId.ToString())}'");
return(ServiceResult.Create(e, StatusCodes.BadUnexpectedError, $"Unexpected error publishing node: {e.Message}"));
}
finally
{
NodeConfiguration.OpcSessionsListSemaphore.Release();
}
if (statusCode == HttpStatusCode.OK || statusCode == HttpStatusCode.Accepted)
{
return(ServiceResult.Good);
}
return(ServiceResult.Create(StatusCodes.Bad, "Can not start monitoring node! Reason unknown."));
}
public void Execute(MethodState state, Instruction inst)
{
state.InstructionPointer = MethodState.RETURN_INSTRUCTION_POINTER;
}
/// <summary>
/// Method exposed as a node in the server to un-publish a node from IoT Hub that it is connected to
/// </summary>
private ServiceResult UnPublishNodeMethod(ISystemContext context, MethodState method, IList <object> inputArguments, IList <object> outputArguments)
{
if (inputArguments[0] == null || inputArguments[1] == null)
{
Program.Trace("UnPublishNodeMethod: Invalid arguments!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide all arguments!"));
}
string nodeID = inputArguments[0] as string;
string uri = inputArguments[1] as string;
if (string.IsNullOrEmpty(nodeID) || string.IsNullOrEmpty(uri))
{
Program.Trace("UnPublishNodeMethod: Arguments are not valid strings!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide all arguments as strings!"));
}
NodeLookup lookup = new NodeLookup();
lookup.NodeID = new NodeId(nodeID);
try
{
lookup.EndPointURL = new Uri(uri);
}
catch (UriFormatException)
{
Program.Trace("UnPublishNodeMethod: Invalid endpoint URL!");
return(ServiceResult.Create(StatusCodes.BadArgumentsMissing, "Please provide a valid OPC UA endpoint URL as second argument!"));
}
// find the right session using our lookup
Session matchingSession = null;
foreach (Session session in Program.m_sessions)
{
char[] trimChars = { '/', ' ' };
if (session.Endpoint.EndpointUrl.TrimEnd(trimChars).Equals(lookup.EndPointURL.ToString().TrimEnd(trimChars), StringComparison.OrdinalIgnoreCase))
{
matchingSession = session;
break;
}
}
if (matchingSession == null)
{
Program.Trace("UnPublishNodeMethod: Session for published node not found: " + lookup.EndPointURL.ToString());
return(ServiceResult.Create(StatusCodes.BadSessionIdInvalid, "Session for published node not found!"));
}
// find the right monitored item to remove
foreach (MonitoredItem item in matchingSession.DefaultSubscription.MonitoredItems)
{
if (item.StartNodeId == lookup.NodeID)
{
matchingSession.DefaultSubscription.RemoveItem(item);
Program.Trace("UnPublishNodeMethod: Successful unpublish: " + lookup.NodeID.ToString());
// update our data on success only
// we keep the session to the server, as there may be other nodes still published on it
var itemToRemove = Program.m_nodesLookups.Find(l => l.NodeID == lookup.NodeID && l.EndPointURL == lookup.EndPointURL);
Program.m_nodesLookups.Remove(itemToRemove);
//serialize Program.m_nodesLookups to disk
string publishedNodesFilePath = Directory.GetCurrentDirectory() + Path.DirectorySeparatorChar + "publishednodes.json";
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("_GW_PNFP")))
{
publishedNodesFilePath = Environment.GetEnvironmentVariable("_GW_PNFP");
}
File.WriteAllText(publishedNodesFilePath, JsonConvert.SerializeObject(Program.m_nodesLookups));
return(ServiceResult.Good);
}
}
Program.Trace("UnPublishNodeMethod: Monitored item for node ID not found " + lookup.NodeID.ToString());
return(ServiceResult.Create(StatusCodes.BadNodeIdInvalid, "Monitored item for node ID not found!"));
}
public override void Execute(MethodContext context, MethodState state, object operand = null)
{
base.Execute(context, state, operand);
}
/// <summary>
/// Does any initialization required before the address space can be used.
/// </summary>
/// <remarks>
/// The externalReferences is an out parameter that allows the node manager to link to nodes
/// in other node managers. For example, the 'Objects' node is managed by the CoreNodeManager and
/// should have a reference to the root folder node(s) exposed by this node manager.
/// </remarks>
public override void CreateAddressSpace(IDictionary <NodeId, IList <IReference> > externalReferences)
{
lock (Lock)
{
// create a object to represent the process being controlled.
BaseObjectState process = new BaseObjectState(null);
process.NodeId = new NodeId(1, NamespaceIndex);
process.BrowseName = new QualifiedName("My Process", NamespaceIndex);
process.DisplayName = process.BrowseName.Name;
process.TypeDefinitionId = ObjectTypeIds.BaseObjectType;
// ensure the process object can be found via the server object.
IList <IReference> references = null;
if (!externalReferences.TryGetValue(ObjectIds.ObjectsFolder, out references))
{
externalReferences[ObjectIds.ObjectsFolder] = references = new List <IReference>();
}
process.AddReference(ReferenceTypeIds.Organizes, true, ObjectIds.ObjectsFolder);
references.Add(new NodeStateReference(ReferenceTypeIds.Organizes, false, process.NodeId));
// a property to report the process state.
PropertyState <uint> state = m_stateNode = new PropertyState <uint>(process);
state.NodeId = new NodeId(2, NamespaceIndex);
state.BrowseName = new QualifiedName("State", NamespaceIndex);
state.DisplayName = state.BrowseName.Name;
state.TypeDefinitionId = VariableTypeIds.PropertyType;
state.ReferenceTypeId = ReferenceTypeIds.HasProperty;
state.DataType = DataTypeIds.UInt32;
state.ValueRank = ValueRanks.Scalar;
process.AddChild(state);
// a method to start the process.
MethodState start = new MethodState(process);
start.NodeId = new NodeId(3, NamespaceIndex);
start.BrowseName = new QualifiedName("Start", NamespaceIndex);
start.DisplayName = start.BrowseName.Name;
start.ReferenceTypeId = ReferenceTypeIds.HasComponent;
start.UserExecutable = true;
start.Executable = true;
// add input arguments.
start.InputArguments = new PropertyState <Argument[]>(start);
start.InputArguments.NodeId = new NodeId(4, NamespaceIndex);
start.InputArguments.BrowseName = BrowseNames.InputArguments;
start.InputArguments.DisplayName = start.InputArguments.BrowseName.Name;
start.InputArguments.TypeDefinitionId = VariableTypeIds.PropertyType;
start.InputArguments.ReferenceTypeId = ReferenceTypeIds.HasProperty;
start.InputArguments.DataType = DataTypeIds.Argument;
start.InputArguments.ValueRank = ValueRanks.OneDimension;
Argument[] args = new Argument[2];
args[0] = new Argument();
args[0].Name = "Initial State";
args[0].Description = "The initialize state for the process.";
args[0].DataType = DataTypeIds.UInt32;
args[0].ValueRank = ValueRanks.Scalar;
args[1] = new Argument();
args[1].Name = "Final State";
args[1].Description = "The final state for the process.";
args[1].DataType = DataTypeIds.UInt32;
args[1].ValueRank = ValueRanks.Scalar;
start.InputArguments.Value = args;
// add output arguments.
start.OutputArguments = new PropertyState <Argument[]>(start);
start.OutputArguments.NodeId = new NodeId(5, NamespaceIndex);
start.OutputArguments.BrowseName = BrowseNames.OutputArguments;
start.OutputArguments.DisplayName = start.OutputArguments.BrowseName.Name;
start.OutputArguments.TypeDefinitionId = VariableTypeIds.PropertyType;
start.OutputArguments.ReferenceTypeId = ReferenceTypeIds.HasProperty;
start.OutputArguments.DataType = DataTypeIds.Argument;
start.OutputArguments.ValueRank = ValueRanks.OneDimension;
args = new Argument[2];
args[0] = new Argument();
args[0].Name = "Revised Initial State";
args[0].Description = "The revised initialize state for the process.";
args[0].DataType = DataTypeIds.UInt32;
args[0].ValueRank = ValueRanks.Scalar;
args[1] = new Argument();
args[1].Name = "Revised Final State";
args[1].Description = "The revised final state for the process.";
args[1].DataType = DataTypeIds.UInt32;
args[1].ValueRank = ValueRanks.Scalar;
start.OutputArguments.Value = args;
process.AddChild(start);
// save in dictionary.
AddPredefinedNode(SystemContext, process);
// set up method handlers.
start.OnCallMethod = new GenericMethodCalledEventHandler(OnStart);
}
}
/// <summary>
/// Calls a method on the specified nodes.
/// </summary>
public override void Call(
OperationContext context,
IList <CallMethodRequest> methodsToCall,
IList <CallMethodResult> results,
IList <ServiceResult> errors)
{
ServerSystemContext systemContext = SystemContext.Copy(context);
IDictionary <NodeId, NodeState> operationCache = new NodeIdDictionary <NodeState>();
bool didRefresh = false;
for (int ii = 0; ii < methodsToCall.Count; ii++)
{
CallMethodRequest methodToCall = methodsToCall[ii];
bool refreshMethod = methodToCall.MethodId.Equals(Opc.Ua.MethodIds.ConditionType_ConditionRefresh) ||
methodToCall.MethodId.Equals(Opc.Ua.MethodIds.ConditionType_ConditionRefresh2);
if (refreshMethod)
{
if (didRefresh)
{
errors[ii] = StatusCodes.BadRefreshInProgress;
methodToCall.Processed = true;
continue;
}
else
{
didRefresh = true;
}
}
bool ackMethod = methodToCall.MethodId.Equals(Opc.Ua.MethodIds.AcknowledgeableConditionType_Acknowledge);
bool confirmMethod = methodToCall.MethodId.Equals(Opc.Ua.MethodIds.AcknowledgeableConditionType_Confirm);
bool commentMethod = methodToCall.MethodId.Equals(Opc.Ua.MethodIds.ConditionType_AddComment);
bool ackConfirmMethod = ackMethod || confirmMethod || commentMethod;
// Need to try to capture any calls to ConditionType::Acknowledge
if (methodToCall.ObjectId.Equals(Opc.Ua.ObjectTypeIds.ConditionType) && (ackConfirmMethod))
{
// Mantis Issue 6944 which is a duplicate of 5544 - result is Confirm should be Bad_NodeIdInvalid
// Override any other errors that may be there, even if this is 'Processed'
errors[ii] = StatusCodes.BadNodeIdInvalid;
methodToCall.Processed = true;
continue;
}
// skip items that have already been processed.
if (methodToCall.Processed)
{
continue;
}
MethodState method = null;
lock (Lock)
{
// check for valid handle.
NodeHandle initialHandle = GetManagerHandle(systemContext, methodToCall.ObjectId, operationCache);
if (initialHandle == null)
{
if (ackConfirmMethod)
{
// Mantis 6944
errors[ii] = StatusCodes.BadNodeIdUnknown;
methodToCall.Processed = true;
}
continue;
}
// owned by this node manager.
methodToCall.Processed = true;
// Look for an alarm branchId to operate on.
NodeHandle handle = FindBranchNodeHandle(systemContext, initialHandle, methodToCall);
// validate the source node.
NodeState source = ValidateNode(systemContext, handle, operationCache);
if (source == null)
{
errors[ii] = StatusCodes.BadNodeIdUnknown;
continue;
}
// find the method.
method = source.FindMethod(systemContext, methodToCall.MethodId);
if (method == null)
{
// check for loose coupling.
if (source.ReferenceExists(ReferenceTypeIds.HasComponent, false, methodToCall.MethodId))
{
method = (MethodState)FindPredefinedNode(methodToCall.MethodId, typeof(MethodState));
}
if (method == null)
{
errors[ii] = StatusCodes.BadMethodInvalid;
continue;
}
}
}
// call the method.
CallMethodResult result = results[ii] = new CallMethodResult();
errors[ii] = Call(
systemContext,
methodToCall,
method,
result);
}
}
protected override NodeState AddBehaviourToPredefinedNode(ISystemContext context, NodeState predefinedNode)
{
// add behaviour to our methods
MethodState methodState = predefinedNode as MethodState;
if (methodState != null)
{
if (methodState.DisplayName == "Execute")
{
methodState.OnCallMethod = new GenericMethodCalledEventHandler(Execute);
// define the method's input argument (the serial number)
methodState.InputArguments = new PropertyState <Argument[]>(methodState)
{
NodeId = new NodeId(methodState.BrowseName.Name + "InArgs", NamespaceIndex),
BrowseName = BrowseNames.InputArguments
};
methodState.InputArguments.DisplayName = methodState.InputArguments.BrowseName.Name;
methodState.InputArguments.TypeDefinitionId = VariableTypeIds.PropertyType;
methodState.InputArguments.ReferenceTypeId = ReferenceTypeIds.HasProperty;
methodState.InputArguments.DataType = DataTypeIds.Argument;
methodState.InputArguments.ValueRank = ValueRanks.OneDimension;
methodState.InputArguments.Value = new Argument[]
{
new Argument {
Name = "SerialNumber", Description = "Serial number of the product to make.", DataType = DataTypeIds.UInt64, ValueRank = ValueRanks.Scalar
}
};
return(predefinedNode);
}
if (methodState.DisplayName == "Reset")
{
methodState.OnCallMethod = new GenericMethodCalledEventHandler(Reset);
return(predefinedNode);
}
if (methodState.DisplayName == "OpenPressureReleaseValve")
{
methodState.OnCallMethod = new GenericMethodCalledEventHandler(OpenPressureReleaseValve);
return(predefinedNode);
}
}
// also capture the nodeIDs of our instance variables (i.e. NOT the model!)
BaseDataVariableState variableState = predefinedNode as BaseDataVariableState;
if ((variableState != null) && (variableState.ModellingRuleId == null))
{
if (variableState.DisplayName == "NumberOfManufacturedProducts")
{
m_NumberOfManufacturedProductsID = variableState.NodeId;
}
if (variableState.DisplayName == "NumberOfDiscardedProducts")
{
m_NumberOfDiscardedProductsID = variableState.NodeId;
}
if (variableState.DisplayName == "ProductSerialNumber")
{
m_ProductSerialNumberID = variableState.NodeId;
}
if (variableState.DisplayName == "ActualCycleTime")
{
m_ActualCycleTimeID = variableState.NodeId;
}
if (variableState.DisplayName == "EnergyConsumption")
{
m_EnergyConsumptionID = variableState.NodeId;
}
if (variableState.DisplayName == "FaultyTime")
{
m_FaultyTimeID = variableState.NodeId;
}
if (variableState.DisplayName == "IdealCycleTime")
{
m_IdealCycleTimeID = variableState.NodeId;
}
if (variableState.DisplayName == "OverallRunningTime")
{
m_OverallRunningTimeID = variableState.NodeId;
}
if (variableState.DisplayName == "Pressure")
{
m_PressureID = variableState.NodeId;
}
if (variableState.DisplayName == "Status")
{
m_StatusID = variableState.NodeId;
}
}
return(predefinedNode);
}
/// <summary>
/// Called when a client locks the server.
/// </summary>
public ServiceResult OnUnlockServer(
ISystemContext context,
MethodState method,
IList<object> inputArguments,
IList<object> outputArguments)
{
ServerSystemContext systemContext = context as ServerSystemContext;
if (m_serverLockHolder != null)
{
if (m_serverLockHolder != systemContext.SessionId)
{
return StatusCodes.BadSessionIdInvalid;
}
}
m_serverLockHolder = null;
return ServiceResult.Good;
}
private ServiceResult Reset(ISystemContext context, MethodState method, IList <object> inputArguments, IList <object> outputArguments)
{
m_status = StationStatus.Ready;
return(ServiceResult.Good);
}
/// <summary>
/// Calls a method on an object.
/// </summary>
protected virtual ServiceResult Call(
ISystemContext context,
CallMethodRequest methodToCall,
NodeState source,
MethodState method,
CallMethodResult result)
{
ServerSystemContext systemContext = context as ServerSystemContext;
List<ServiceResult> argumentErrors = new List<ServiceResult>();
VariantCollection outputArguments = new VariantCollection();
ServiceResult error = method.Call(
context,
source.NodeId,
methodToCall.InputArguments,
argumentErrors,
outputArguments);
if (ServiceResult.IsBad(error))
{
return error;
}
// check for argument errors.
bool argumentsValid = true;
for (int jj = 0; jj < argumentErrors.Count; jj++)
{
ServiceResult argumentError = argumentErrors[jj];
if (argumentError != null)
{
result.InputArgumentResults.Add(argumentError.StatusCode);
if (ServiceResult.IsBad(argumentError))
{
argumentsValid = false;
}
}
else
{
result.InputArgumentResults.Add(StatusCodes.Good);
}
// only fill in diagnostic info if it is requested.
if ((systemContext.OperationContext.DiagnosticsMask & DiagnosticsMasks.OperationAll) != 0)
{
if (ServiceResult.IsBad(argumentError))
{
argumentsValid = false;
result.InputArgumentDiagnosticInfos.Add(new DiagnosticInfo(argumentError, systemContext.OperationContext.DiagnosticsMask, false, systemContext.OperationContext.StringTable));
}
else
{
result.InputArgumentDiagnosticInfos.Add(null);
}
}
}
// check for validation errors.
if (!argumentsValid)
{
result.StatusCode = StatusCodes.BadInvalidArgument;
return result.StatusCode;
}
// do not return diagnostics if there are no errors.
result.InputArgumentDiagnosticInfos.Clear();
// return output arguments.
result.OutputArguments = outputArguments;
return ServiceResult.Good;
}
private ServiceResult OpenPressureReleaseValve(ISystemContext context, MethodState method, IList <object> inputArguments, IList <object> outputArguments)
{
m_pressure = 1000;
return(ServiceResult.Good);
}
