def _add_node(self, item, user, check=True):
#self.logger.debug("Adding node %s %s", item.RequestedNewNodeId, item.BrowseName)
result = ua.AddNodesResult()
if not user == User.Admin:
result.StatusCode = ua.StatusCode(ua.StatusCodes.BadUserAccessDenied)
return result
if item.RequestedNewNodeId.has_null_identifier():
# If Identifier of requested NodeId is null we generate a new NodeId using
# the namespace of the nodeid, this is an extention of the spec to allow
# to requests the server to generate a new nodeid in a specified namespace
#self.logger.debug("RequestedNewNodeId has null identifier, generating Identifier")
item.RequestedNewNodeId = self._aspace.generate_nodeid(item.RequestedNewNodeId.NamespaceIndex)
else:
if item.RequestedNewNodeId in self._aspace:
self.logger.warning("AddNodesItem: Requested NodeId %s already exists", item.RequestedNewNodeId)
result.StatusCode = ua.StatusCode(ua.StatusCodes.BadNodeIdExists)
return result
if item.ParentNodeId.is_null():
# self.logger.info("add_node: while adding node %s, requested parent node is null %s %s",
# item.RequestedNewNodeId, item.ParentNodeId, item.ParentNodeId.is_null())
if check:
result.StatusCode = ua.StatusCode(ua.StatusCodes.BadParentNodeIdInvalid)
return result
parentdata = self._aspace.get(item.ParentNodeId)
if parentdata is None and not item.ParentNodeId.is_null():
self.logger.info("add_node: while adding node %s, requested parent node %s does not exists",
item.RequestedNewNodeId, item.ParentNodeId)
result.StatusCode = ua.StatusCode(ua.StatusCodes.BadParentNodeIdInvalid)
return result
nodedata = NodeData(item.RequestedNewNodeId)
self._add_node_attributes(nodedata, item, add_timestamps=check)
# now add our node to db
self._aspace[nodedata.nodeid] = nodedata
if parentdata is not None:
self._add_ref_from_parent(nodedata, item, parentdata)
self._add_ref_to_parent(nodedata, item, parentdata)
# add type definition
if item.TypeDefinition != ua.NodeId():
self._add_type_definition(nodedata, item)
result.StatusCode = ua.StatusCode()
result.AddedNodeId = nodedata.nodeid
return result
def _add_node(self, item, user, check=True):
# self.logger.debug("Adding node %s %s", item.RequestedNewNodeId, item.BrowseName)
result = ua.AddNodesResult()
if not user.role == UserRole.Admin:
result.StatusCode = ua.StatusCode(
ua.StatusCodes.BadUserAccessDenied)
return result
if item.RequestedNewNodeId.has_null_identifier():
# If Identifier of requested NodeId is null we generate a new NodeId using
# the namespace of the nodeid, this is an extention of the spec to allow
# to requests the server to generate a new nodeid in a specified namespace
# self.logger.debug("RequestedNewNodeId has null identifier, generating Identifier")
item.RequestedNewNodeId = self._aspace.generate_nodeid(
item.RequestedNewNodeId.NamespaceIndex)
else:
if item.RequestedNewNodeId in self._aspace:
self.logger.warning(
"AddNodesItem: Requested NodeId %s already exists",
item.RequestedNewNodeId)
result.StatusCode = ua.StatusCode(
ua.StatusCodes.BadNodeIdExists)
return result
if item.ParentNodeId.is_null():
# self.logger.info("add_node: while adding node %s, requested parent node is null %s %s",
# item.RequestedNewNodeId, item.ParentNodeId, item.ParentNodeId.is_null())
if check:
result.StatusCode = ua.StatusCode(
ua.StatusCodes.BadParentNodeIdInvalid)
return result
parentdata = self._aspace.get(item.ParentNodeId)
if parentdata is None and not item.ParentNodeId.is_null():
self.logger.info(
"add_node: while adding node %s, requested parent node %s does not exists",
item.RequestedNewNodeId, item.ParentNodeId)
result.StatusCode = ua.StatusCode(
ua.StatusCodes.BadParentNodeIdInvalid)
return result
if item.ParentNodeId in self._aspace:
for ref in self._aspace[item.ParentNodeId].references:
# Check if the Parent has a "HasChild" Reference (or subtype of it) with the Node
if ref.ReferenceTypeId.Identifier in [
ua.ObjectIds.HasChild, ua.ObjectIds.HasComponent,
ua.ObjectIds.HasProperty, ua.ObjectIds.HasSubtype,
ua.ObjectIds.HasOrderedComponent
] and ref.IsForward:
if item.BrowseName.Name == ref.BrowseName.Name:
self.logger.warning(
f"AddNodesItem: Requested Browsename {item.BrowseName.Name}"
f" already exists in Parent Node. ParentID:{item.ParentNodeId} --- "
f"ItemId:{item.RequestedNewNodeId}")
result.StatusCode = ua.StatusCode(
ua.StatusCodes.BadBrowseNameDuplicated)
return result
nodedata = NodeData(item.RequestedNewNodeId)
self._add_node_attributes(nodedata, item, add_timestamps=check)
# now add our node to db
self._aspace[nodedata.nodeid] = nodedata
if parentdata is not None:
self._add_ref_from_parent(nodedata, item, parentdata)
self._add_ref_to_parent(nodedata, item, parentdata)
# add type definition
if item.TypeDefinition != ua.NodeId():
self._add_type_definition(nodedata, item)
result.StatusCode = ua.StatusCode()
result.AddedNodeId = nodedata.nodeid
return result