def activate_session(self, params):
id_token = params.UserIdentityToken
if isinstance(id_token, ua.AnonymousIdentityToken):
raise utils.ServiceError(ua.StatusCodes.BadUserAccessDenied)
elif isinstance(id_token, ua.X509IdentityToken):
raise utils.ServiceError(ua.StatusCodes.BadIdentityTokenRejected)
return super().activate_session(params)
def process(self, header, body):
msg = self._connection.receive_from_header_and_body(header, body)
if isinstance(msg, ua.Message):
if header.MessageType == ua.MessageType.SecureOpen:
self.open_secure_channel(msg.SecurityHeader(),
msg.SequenceHeader(), msg.body())
elif header.MessageType == ua.MessageType.SecureClose:
if not self.channel or header.ChannelId != self.channel.SecurityToken.ChannelId:
self.logger.warning(
"Request to close channel %s which was not issued, current channel is %s",
header.ChannelId, self.channel)
return False
elif header.MessageType == ua.MessageType.SecureMessage:
return self.process_message(msg.SecurityHeader(),
msg.SequenceHeader(), msg.body())
elif isinstance(msg, ua.Hello):
ack = ua.Acknowledge()
ack.ReceiveBufferSize = msg.ReceiveBufferSize
ack.SendBufferSize = msg.SendBufferSize
data = self._connection.tcp_to_binary(ua.MessageType.Acknowledge,
ack)
self.socket.write(data)
elif isinstance(msg, ua.ErrorMessage):
self.logger.warning("Received an error message type")
else:
self.logger.warning("Unsupported message type: %s",
header.MessageType)
raise utils.ServiceError(ua.StatusCodes.BadTcpMessageTypeInvalid)
return True
def activate_session(self, params):
self.logger.info("activate session")
result = ua.ActivateSessionResult()
if self.state != SessionState.Created:
raise utils.ServiceError(ua.StatusCodes.BadSessionIdInvalid)
self.nonce = utils.create_nonce(32)
result.ServerNonce = self.nonce
for _ in params.ClientSoftwareCertificates:
result.Results.append(ua.StatusCode())
self.state = SessionState.Activated
id_token = params.UserIdentityToken
if isinstance(id_token, ua.UserNameIdentityToken):
if self.user_manager.check_user_token(self, id_token) == False:
raise utils.ServiceError(ua.StatusCodes.BadUserAccessDenied)
self.logger.info("Activated internal session %s for user %s", self.name, self.user)
return result
def process(self, header, body):
msg = self._connection.receive_from_header_and_body(header, body)
if isinstance(msg, ua.Message):
if header.MessageType == ua.MessageType.SecureOpen:
self.open_secure_channel(msg.SecurityHeader(),
msg.SequenceHeader(), msg.body())
elif header.MessageType == ua.MessageType.SecureClose:
self._connection.close()
return False
elif header.MessageType == ua.MessageType.SecureMessage:
return self.process_message(msg.SecurityHeader(),
msg.SequenceHeader(), msg.body())
elif isinstance(msg, ua.Hello):
ack = ua.Acknowledge()
ack.ReceiveBufferSize = msg.ReceiveBufferSize
ack.SendBufferSize = msg.SendBufferSize
data = uatcp_to_binary(ua.MessageType.Acknowledge, ack)
self.socket.write(data)
elif isinstance(msg, ua.ErrorMessage):
self.logger.warning("Received an error message type")
elif msg is None:
pass # msg is a ChunkType.Intermediate of an ua.MessageType.SecureMessage
else:
self.logger.warning("Unsupported message type: %s",
header.MessageType)
raise utils.ServiceError(ua.StatusCodes.BadTcpMessageTypeInvalid)
return True
def modify_subscription(self, params, callback):
# Requested params are ignored, result = params set during create_subscription.
self.logger.info("modify subscription with callback: %s", callback)
result = ua.ModifySubscriptionResult()
try:
with self._lock:
sub = self.subscriptions[params.SubscriptionId]
result.RevisedPublishingInterval = sub.data.RevisedPublishingInterval
result.RevisedLifetimeCount = sub.data.RevisedLifetimeCount
result.RevisedMaxKeepAliveCount = sub.data.RevisedMaxKeepAliveCount
return result
except KeyError:
raise utils.ServiceError(ua.StatusCodes.BadSubscriptionIdInvalid)
def activate_session(self, params):
self.logger.info("activate session")
result = ua.ActivateSessionResult()
if self.state != SessionState.Created:
raise utils.ServiceError(ua.StatusCodes.BadSessionIdInvalid)
self.nonce = utils.create_nonce(32)
result.ServerNonce = self.nonce
for _ in params.ClientSoftwareCertificates:
result.Results.append(ua.StatusCode())
self.state = SessionState.Activated
id_token = params.UserIdentityToken
if isinstance(id_token, ua.UserNameIdentityToken):
if self.iserver.allow_remote_admin and id_token.UserName in ("admin", "Admin"):
self.user = User.Admin
return result
def _process_message(self, typeid, requesthdr, algohdr, seqhdr, body):
if typeid == ua.NodeId(
ua.ObjectIds.CreateSessionRequest_Encoding_DefaultBinary):
self.logger.info("Create session request")
params = ua.CreateSessionParameters.from_binary(body)
self.session = self.iserver.create_session(
self.name, external=True) # create the session on server
sessiondata = self.session.create_session(
params, sockname=self.sockname
) # get a session creation result to send back
response = ua.CreateSessionResponse()
response.Parameters = sessiondata
response.Parameters.ServerCertificate = self._connection._security_policy.client_certificate
response.Parameters.ServerSignature.Signature = self._connection._security_policy.asymmetric_cryptography.signature(
self._connection._security_policy.server_certificate +
params.ClientNonce)
response.Parameters.ServerSignature.Algorithm = "http://www.w3.org/2000/09/xmldsig#rsa-sha1"
self.logger.info("sending create sesssion response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.CloseSessionRequest_Encoding_DefaultBinary):
self.logger.info("Close session request")
deletesubs = ua.unpack_uatype('Boolean', body)
self.session.close_session(deletesubs)
response = ua.CloseSessionResponse()
self.logger.info("sending close sesssion response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.ActivateSessionRequest_Encoding_DefaultBinary):
self.logger.info("Activate session request")
params = ua.ActivateSessionParameters.from_binary(body)
if not self.session:
self.logger.info("request to activate non-existing session")
raise utils.ServiceError(ua.StatusCodes.BadSessionIdInvalid)
self._connection._security_policy.asymmetric_cryptography.verify(
self._connection._security_policy.client_certificate +
self.session.nonce, params.ClientSignature.Signature)
result = self.session.activate_session(params)
response = ua.ActivateSessionResponse()
response.Parameters = result
self.logger.info("sending read response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.ReadRequest_Encoding_DefaultBinary):
self.logger.info("Read request")
params = ua.ReadParameters.from_binary(body)
results = self.session.read(params)
response = ua.ReadResponse()
response.Results = results
self.logger.info("sending read response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.WriteRequest_Encoding_DefaultBinary):
self.logger.info("Write request")
params = ua.WriteParameters.from_binary(body)
results = self.session.write(params)
response = ua.WriteResponse()
response.Results = results
self.logger.info("sending write response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.BrowseRequest_Encoding_DefaultBinary):
self.logger.info("Browse request")
params = ua.BrowseParameters.from_binary(body)
results = self.session.browse(params)
response = ua.BrowseResponse()
response.Results = results
self.logger.info("sending browse response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.GetEndpointsRequest_Encoding_DefaultBinary):
self.logger.info("get endpoints request")
params = ua.GetEndpointsParameters.from_binary(body)
endpoints = self.iserver.get_endpoints(params,
sockname=self.sockname)
response = ua.GetEndpointsResponse()
response.Endpoints = endpoints
self.logger.info("sending get endpoints response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.FindServersRequest_Encoding_DefaultBinary):
self.logger.info("find servers request")
params = ua.FindServersParameters.from_binary(body)
servers = self.iserver.find_servers(params)
response = ua.FindServersResponse()
response.Servers = servers
self.logger.info("sending find servers response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.RegisterServerRequest_Encoding_DefaultBinary):
self.logger.info("register server request")
serv = ua.RegisteredServer.from_binary(body)
self.iserver.register_server(serv)
response = ua.RegisterServerResponse()
self.logger.info("sending register server response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.RegisterServer2Request_Encoding_DefaultBinary):
self.logger.info("register server 2 request")
params = ua.RegisterServer2Parameters.from_binary(body)
results = self.iserver.register_server2(params)
response = ua.RegisterServer2Response()
response.ConfigurationResults = results
self.logger.info("sending register server 2 response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.
TranslateBrowsePathsToNodeIdsRequest_Encoding_DefaultBinary):
self.logger.info("translate browsepaths to nodeids request")
params = ua.TranslateBrowsePathsToNodeIdsParameters.from_binary(
body)
paths = self.session.translate_browsepaths_to_nodeids(
params.BrowsePaths)
response = ua.TranslateBrowsePathsToNodeIdsResponse()
response.Results = paths
self.logger.info(
"sending translate browsepaths to nodeids response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.AddNodesRequest_Encoding_DefaultBinary):
self.logger.info("add nodes request")
params = ua.AddNodesParameters.from_binary(body)
results = self.session.add_nodes(params.NodesToAdd)
response = ua.AddNodesResponse()
response.Results = results
self.logger.info("sending add node response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.CreateSubscriptionRequest_Encoding_DefaultBinary):
self.logger.info("create subscription request")
params = ua.CreateSubscriptionParameters.from_binary(body)
result = self.session.create_subscription(
params, self.forward_publish_response)
response = ua.CreateSubscriptionResponse()
response.Parameters = result
self.logger.info("sending create subscription response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.DeleteSubscriptionsRequest_Encoding_DefaultBinary
):
self.logger.info("delete subscriptions request")
params = ua.DeleteSubscriptionsParameters.from_binary(body)
results = self.session.delete_subscriptions(params.SubscriptionIds)
response = ua.DeleteSubscriptionsResponse()
response.Results = results
self.logger.info("sending delte subscription response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.CreateMonitoredItemsRequest_Encoding_DefaultBinary
):
self.logger.info("create monitored items request")
params = ua.CreateMonitoredItemsParameters.from_binary(body)
results = self.session.create_monitored_items(params)
response = ua.CreateMonitoredItemsResponse()
response.Results = results
self.logger.info("sending create monitored items response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.ModifyMonitoredItemsRequest_Encoding_DefaultBinary
):
self.logger.info("modify monitored items request")
params = ua.ModifyMonitoredItemsParameters.from_binary(body)
results = self.session.modify_monitored_items(params)
response = ua.ModifyMonitoredItemsResponse()
response.Results = results
self.logger.info("sending modify monitored items response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.DeleteMonitoredItemsRequest_Encoding_DefaultBinary
):
self.logger.info("delete monitored items request")
params = ua.DeleteMonitoredItemsParameters.from_binary(body)
results = self.session.delete_monitored_items(params)
response = ua.DeleteMonitoredItemsResponse()
response.Results = results
self.logger.info("sending delete monitored items response")
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.PublishRequest_Encoding_DefaultBinary):
self.logger.info("publish request")
if not self.session:
return False
params = ua.PublishParameters.from_binary(body)
data = PublishRequestData()
data.requesthdr = requesthdr
data.seqhdr = seqhdr
data.algohdr = algohdr
with self._datalock:
self._publishdata_queue.append(
data) # will be used to send publish answers from server
self.session.publish(params.SubscriptionAcknowledgements)
self.logger.info("publish forward to server")
elif typeid == ua.NodeId(
ua.ObjectIds.RepublishRequest_Encoding_DefaultBinary):
self.logger.info("re-publish request")
params = ua.RepublishParameters.from_binary(body)
msg = self.session.republish(params)
response = ua.RepublishResponse()
response.NotificationMessage = msg
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
elif typeid == ua.NodeId(
ua.ObjectIds.CloseSecureChannelRequest_Encoding_DefaultBinary):
self.logger.info("close secure channel request")
response = ua.CloseSecureChannelResponse()
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
self.channel = None
return False
elif typeid == ua.NodeId(
ua.ObjectIds.CallRequest_Encoding_DefaultBinary):
self.logger.info("call request")
params = ua.CallParameters.from_binary(body)
results = self.session.call(params.MethodsToCall)
response = ua.CallResponse()
response.Results = results
self.send_response(requesthdr.RequestHandle, algohdr, seqhdr,
response)
else:
self.logger.warning("Unknown message received %s", typeid)
raise utils.ServiceError(ua.StatusCodes.BadNotImplemented)
return True
def _process_message(self, typeid, requesthdr, seqhdr, body):
if typeid == ua.NodeId(
ua.ObjectIds.CreateSessionRequest_Encoding_DefaultBinary):
self.logger.info("Create session request")
params = struct_from_binary(ua.CreateSessionParameters, body)
# create the session on server
self.session = self.iserver.create_session(self.name,
external=True)
# get a session creation result to send back
sessiondata = self.session.create_session(params,
sockname=self.sockname)
response = ua.CreateSessionResponse()
response.Parameters = sessiondata
response.Parameters.ServerCertificate = self._connection.security_policy.client_certificate
if self._connection.security_policy.server_certificate is None:
data = params.ClientNonce
else:
data = self._connection.security_policy.server_certificate + params.ClientNonce
response.Parameters.ServerSignature.Signature = \
self._connection.security_policy.asymmetric_cryptography.signature(data)
response.Parameters.ServerSignature.Algorithm = self._connection.security_policy.AsymmetricSignatureURI
self.logger.info("sending create session response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.CloseSessionRequest_Encoding_DefaultBinary):
self.logger.info("Close session request")
if self.session:
deletesubs = ua.ua_binary.Primitives.Boolean.unpack(body)
self.session.close_session(deletesubs)
else:
self.logger.info("Request to close non-existing session")
response = ua.CloseSessionResponse()
self.logger.info("sending close session response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.ActivateSessionRequest_Encoding_DefaultBinary):
self.logger.info("Activate session request")
params = struct_from_binary(ua.ActivateSessionParameters, body)
if not self.session:
self.logger.info("request to activate non-existing session")
raise utils.ServiceError(ua.StatusCodes.BadSessionIdInvalid)
if self._connection.security_policy.client_certificate is None:
data = self.session.nonce
else:
data = self._connection.security_policy.client_certificate + self.session.nonce
self._connection.security_policy.asymmetric_cryptography.verify(
data, params.ClientSignature.Signature)
result = self.session.activate_session(params)
response = ua.ActivateSessionResponse()
response.Parameters = result
self.logger.info("sending read response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.ReadRequest_Encoding_DefaultBinary):
self.logger.info("Read request")
params = struct_from_binary(ua.ReadParameters, body)
results = self.session.read(params)
response = ua.ReadResponse()
response.Results = results
self.logger.info("sending read response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.WriteRequest_Encoding_DefaultBinary):
self.logger.info("Write request")
params = struct_from_binary(ua.WriteParameters, body)
results = self.session.write(params)
response = ua.WriteResponse()
response.Results = results
self.logger.info("sending write response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.BrowseRequest_Encoding_DefaultBinary):
self.logger.info("Browse request")
params = struct_from_binary(ua.BrowseParameters, body)
results = self.session.browse(params)
response = ua.BrowseResponse()
response.Results = results
self.logger.info("sending browse response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.GetEndpointsRequest_Encoding_DefaultBinary):
self.logger.info("get endpoints request")
params = struct_from_binary(ua.GetEndpointsParameters, body)
endpoints = self.iserver.get_endpoints(params,
sockname=self.sockname)
response = ua.GetEndpointsResponse()
response.Endpoints = endpoints
self.logger.info("sending get endpoints response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.FindServersRequest_Encoding_DefaultBinary):
self.logger.info("find servers request")
params = struct_from_binary(ua.FindServersParameters, body)
servers = self.local_discovery_service.find_servers(params)
response = ua.FindServersResponse()
response.Servers = servers
self.logger.info("sending find servers response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.RegisterServerRequest_Encoding_DefaultBinary):
self.logger.info("register server request")
serv = struct_from_binary(ua.RegisteredServer, body)
self.local_discovery_service.register_server(serv)
response = ua.RegisterServerResponse()
self.logger.info("sending register server response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.RegisterServer2Request_Encoding_DefaultBinary):
self.logger.info("register server 2 request")
params = struct_from_binary(ua.RegisterServer2Parameters, body)
results = self.local_discovery_service.register_server2(params)
response = ua.RegisterServer2Response()
response.ConfigurationResults = results
self.logger.info("sending register server 2 response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.
TranslateBrowsePathsToNodeIdsRequest_Encoding_DefaultBinary):
self.logger.info("translate browsepaths to nodeids request")
params = struct_from_binary(
ua.TranslateBrowsePathsToNodeIdsParameters, body)
paths = self.session.translate_browsepaths_to_nodeids(
params.BrowsePaths)
response = ua.TranslateBrowsePathsToNodeIdsResponse()
response.Results = paths
self.logger.info(
"sending translate browsepaths to nodeids response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.AddNodesRequest_Encoding_DefaultBinary):
self.logger.info("add nodes request")
params = struct_from_binary(ua.AddNodesParameters, body)
results = self.session.add_nodes(params.NodesToAdd)
response = ua.AddNodesResponse()
response.Results = results
self.logger.info("sending add node response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.DeleteNodesRequest_Encoding_DefaultBinary):
self.logger.info("delete nodes request")
params = struct_from_binary(ua.DeleteNodesParameters, body)
results = self.session.delete_nodes(params)
response = ua.DeleteNodesResponse()
response.Results = results
self.logger.info("sending delete node response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.AddReferencesRequest_Encoding_DefaultBinary):
self.logger.info("add references request")
params = struct_from_binary(ua.AddReferencesParameters, body)
results = self.session.add_references(params.ReferencesToAdd)
response = ua.AddReferencesResponse()
response.Results = results
self.logger.info("sending add references response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.DeleteReferencesRequest_Encoding_DefaultBinary):
self.logger.info("delete references request")
params = struct_from_binary(ua.DeleteReferencesParameters, body)
results = self.session.delete_references(params.ReferencesToDelete)
response = ua.DeleteReferencesResponse()
response.Parameters.Results = results
self.logger.info("sending delete references response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.CreateSubscriptionRequest_Encoding_DefaultBinary):
self.logger.info("create subscription request")
params = struct_from_binary(ua.CreateSubscriptionParameters, body)
result = self.session.create_subscription(
params, self.forward_publish_response)
response = ua.CreateSubscriptionResponse()
response.Parameters = result
self.logger.info("sending create subscription response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.ModifySubscriptionRequest_Encoding_DefaultBinary):
self.logger.info("modify subscription request")
params = struct_from_binary(ua.ModifySubscriptionParameters, body)
result = self.session.modify_subscription(
params, self.forward_publish_response)
response = ua.ModifySubscriptionResponse()
response.Parameters = result
self.logger.info("sending modify subscription response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.DeleteSubscriptionsRequest_Encoding_DefaultBinary
):
self.logger.info("delete subscriptions request")
params = struct_from_binary(ua.DeleteSubscriptionsParameters, body)
results = self.session.delete_subscriptions(params.SubscriptionIds)
response = ua.DeleteSubscriptionsResponse()
response.Results = results
self.logger.info("sending delte subscription response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.CreateMonitoredItemsRequest_Encoding_DefaultBinary
):
self.logger.info("create monitored items request")
params = struct_from_binary(ua.CreateMonitoredItemsParameters,
body)
results = self.session.create_monitored_items(params)
response = ua.CreateMonitoredItemsResponse()
response.Results = results
self.logger.info("sending create monitored items response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.ModifyMonitoredItemsRequest_Encoding_DefaultBinary
):
self.logger.info("modify monitored items request")
params = struct_from_binary(ua.ModifyMonitoredItemsParameters,
body)
results = self.session.modify_monitored_items(params)
response = ua.ModifyMonitoredItemsResponse()
response.Results = results
self.logger.info("sending modify monitored items response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.DeleteMonitoredItemsRequest_Encoding_DefaultBinary
):
self.logger.info("delete monitored items request")
params = struct_from_binary(ua.DeleteMonitoredItemsParameters,
body)
results = self.session.delete_monitored_items(params)
response = ua.DeleteMonitoredItemsResponse()
response.Results = results
self.logger.info("sending delete monitored items response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.HistoryReadRequest_Encoding_DefaultBinary):
self.logger.info("history read request")
params = struct_from_binary(ua.HistoryReadParameters, body)
results = self.session.history_read(params)
response = ua.HistoryReadResponse()
response.Results = results
self.logger.info("sending history read response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.RegisterNodesRequest_Encoding_DefaultBinary):
self.logger.info("register nodes request")
params = struct_from_binary(ua.RegisterNodesParameters, body)
self.logger.info("Node registration not implemented")
response = ua.RegisterNodesResponse()
response.Parameters.RegisteredNodeIds = params.NodesToRegister
self.logger.info("sending register nodes response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.UnregisterNodesRequest_Encoding_DefaultBinary):
self.logger.info("unregister nodes request")
params = struct_from_binary(ua.UnregisterNodesParameters, body)
response = ua.UnregisterNodesResponse()
self.logger.info("sending unregister nodes response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.PublishRequest_Encoding_DefaultBinary):
self.logger.info("publish request")
if not self.session:
return False
params = struct_from_binary(ua.PublishParameters, body)
data = PublishRequestData()
data.requesthdr = requesthdr
data.seqhdr = seqhdr
with self._datalock:
self._publishdata_queue.append(
data) # will be used to send publish answers from server
if self._publish_result_queue:
result = self._publish_result_queue.pop(0)
self.forward_publish_response(result)
self.session.publish(params.SubscriptionAcknowledgements)
self.logger.info("publish forward to server")
elif typeid == ua.NodeId(
ua.ObjectIds.RepublishRequest_Encoding_DefaultBinary):
self.logger.info("re-publish request")
params = struct_from_binary(ua.RepublishParameters, body)
msg = self.session.republish(params)
response = ua.RepublishResponse()
response.NotificationMessage = msg
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.CloseSecureChannelRequest_Encoding_DefaultBinary):
self.logger.info("close secure channel request")
self._connection.close()
response = ua.CloseSecureChannelResponse()
self.send_response(requesthdr.RequestHandle, seqhdr, response)
return False
elif typeid == ua.NodeId(
ua.ObjectIds.CallRequest_Encoding_DefaultBinary):
self.logger.info("call request")
params = struct_from_binary(ua.CallParameters, body)
results = self.session.call(params.MethodsToCall)
response = ua.CallResponse()
response.Results = results
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.SetMonitoringModeRequest_Encoding_DefaultBinary):
self.logger.info("set monitoring mode request")
params = struct_from_binary(ua.SetMonitoringModeParameters, body)
# FIXME: Implement SetMonitoringMode
# Send dummy results to keep clients happy
response = ua.SetMonitoringModeResponse()
results = ua.SetMonitoringModeResult()
ids = params.MonitoredItemIds
statuses = [ua.StatusCode(ua.StatusCodes.Good) for node_id in ids]
results.Results = statuses
response.Parameters = results
self.logger.info("sending set monitoring mode response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
elif typeid == ua.NodeId(
ua.ObjectIds.SetPublishingModeRequest_Encoding_DefaultBinary):
self.logger.info("set publishing mode request")
params = struct_from_binary(ua.SetPublishingModeParameters, body)
# FIXME: Implement SetPublishingMode
# Send dummy results to keep clients happy
response = ua.SetPublishingModeResponse()
results = ua.SetPublishingModeResult()
ids = params.SubscriptionIds
statuses = [ua.StatusCode(ua.StatusCodes.Good) for node_id in ids]
results.Results = statuses
response.Parameters = results
self.logger.info("sending set publishing mode response")
self.send_response(requesthdr.RequestHandle, seqhdr, response)
else:
self.logger.warning("Unknown message received %s", typeid)
raise utils.ServiceError(ua.StatusCodes.BadServiceUnsupported)
return True