def test_context_manager(self):
""" Context manager calls start() and stop()
"""
state = [0]
def increment_state(self, *args, **kwargs):
state[0] += 1
# create server and replace instance methods with dummy methods
server = Server()
server.start = increment_state.__get__(server)
server.stop = increment_state.__get__(server)
assert state[0] == 0
with server:
# test if server started
self.assertEqual(state[0], 1)
# test if server stopped
self.assertEqual(state[0], 2)
class Servidor_OPCUA:
def __init__(self):
self.server = Server()
self.server.set_endpoint("opc.tcp://localhost:4840/freeopcua/server/")
self.server.set_server_name("Stack IIoT")
self.namespaces = {}
self.objects = self.server.get_objects_node()
# Para agregar un nuevo namespace
def new_namespace(self, uri, namespace, nombre):
idx = self.server.register_namespace(uri)
print('New namespace: {}'.format(idx))
Namespace = namespace(
self.objects, idx,
self.server) # Se declaran todas las variables del nuevo namespace
self.namespaces[nombre] = Namespace
def start(self):
global alarma, valor_alarma, mensaje_alarma
self.server.start()
for nombre, namespace in self.namespaces.items():
namespace.subscripciones()
# Se incia el loop del servidor
try:
while True:
time.sleep(0.1)
for nombre, namespace in self.namespaces.items():
namespace.monitorea_alarma()
finally:
self.server.stop()
def run_opcua_server():
"""
Creates the OPC/UA server and starts it.
"""
# setup our server
server = Server()
server.set_endpoint("opc.tcp://localhost:26543/example/server")
# setup our own namespace, not really necessary but should as spec
uri = "https://github.com/nathanagood/aws-greengrass-samples"
idx = server.register_namespace(uri)
# get Objects node, this is where we should put our nodes
objects = server.get_objects_node()
# populating our address space
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myvar.set_writable() # Set MyVariable to be writable by clients
# starting!
server.start()
try:
count = 0
while True:
time.sleep(5)
count += 1
logger.debug('Setting value: %s', count)
myvar.set_value(count)
finally:
#close connection, remove subcsriptions, etc
server.stop()
def __init__(self, endpoint, name, model_filepath):
self.server = Server()
# This need to be imported at the start or else it will overwrite the data
self.server.import_xml(model_filepath)
self.server.set_endpoint(endpoint)
self.server.set_server_name(name)
objects = self.server.get_objects_node()
freeopcua_namespace = self.server.get_namespace_index(
"urn:freeopcua:python:server")
hellower = objects.get_child("0:Hellower")
hellower_say_hello = hellower.get_child("0:SayHello")
hellower_exe_calculate = hellower.get_child("0:Calculator")
self.server.link_method(hellower_say_hello, say_hello_xml)
self.server.link_method(hellower_exe_calculate, exe_calculator)
hellower.add_method(freeopcua_namespace, "SayHello2", say_hello,
[ua.VariantType.Boolean], [ua.VariantType.String])
hellower.add_method(freeopcua_namespace, "SayHelloArray",
say_hello_array, [ua.VariantType.Boolean],
[ua.VariantType.String])
def __init__(self, endpoint, name):
# Logging configuration
self.logger = logging.getLogger('MyDeviceServer')
self.logger.setLevel(logging.INFO)
# Setup server
self.server = Server()
self.server.import_xml("MyDevice.xml")
self.server.set_endpoint(endpoint)
self.server.set_server_name(name)
self.objects_node = self.server.get_objects_node()
self.my_device_node = self.objects_node.get_child("0:MyDevice")
self.my_device_toggle_b = self.my_device_node.get_child("0:ToggleB")
self.my_device_toggle_c = self.my_device_node.get_child("0:ToggleC")
self.my_device_toggle_d = self.my_device_node.get_child("0:ToggleD")
self.server.link_method(self.my_device_toggle_b, self.toggle_b)
self.server.link_method(self.my_device_toggle_c, self.toggle_c)
self.server.link_method(self.my_device_toggle_d, self.toggle_d)
self.my_variable_a = self.my_device_node.get_child("0:VariableA")
self.my_variable_b = self.my_device_node.get_child("0:VariableB")
self.my_variable_c = self.my_device_node.get_child("0:VariableC")
self.my_variable_d = self.my_device_node.get_child("0:VariableD")
self.my_variable_e = self.my_device_node.get_child("0:VariableE")
def setUpClass(cls):
# start our own server
cls.srv_crypto = Server()
cls.uri_crypto = 'opc.tcp://127.0.0.1:{0:d}'.format(port_num1)
cls.srv_crypto.set_endpoint(cls.uri_crypto)
# load server certificate and private key. This enables endpoints
# with signing and encryption.
cls.srv_crypto.load_certificate("../examples/certificate-example.der")
cls.srv_crypto.load_private_key("../examples/private-key-example.pem")
cls.srv_crypto.start()
# start a server without crypto
cls.srv_no_crypto = Server()
cls.uri_no_crypto = 'opc.tcp://127.0.0.1:{0:d}'.format(port_num2)
cls.srv_no_crypto.set_endpoint(cls.uri_no_crypto)
cls.srv_no_crypto.start()
# start server with long key
cls.srv_crypto2 = Server()
cls.uri_crypto2 = 'opc.tcp://127.0.0.1:{0:d}'.format(port_num3)
cls.srv_crypto2.set_endpoint(cls.uri_crypto2)
cls.srv_crypto2.load_certificate("../examples/certificate-3072-example.der")
cls.srv_crypto2.load_private_key("../examples/private-key-3072-example.pem")
cls.srv_crypto2.start()
cls.srv_crypto_no_anoymous = Server()
cls.uri_crypto_no_anoymous = 'opc.tcp://127.0.0.1:{0:d}'.format(port_num4)
cls.srv_crypto_no_anoymous.set_endpoint(cls.uri_crypto_no_anoymous)
cls.srv_crypto_no_anoymous.load_certificate("examples/certificate-3072-example.der")
cls.srv_crypto_no_anoymous.load_private_key("examples/private-key-3072-example.pem")
cls.srv_crypto_no_anoymous.set_security_IDs(["Username", "Basic256Sha256"])
cls.srv_crypto_no_anoymous.start()
def __init__(self, logger):
self.isinit = False
self.logger = logger
# setup our server
self.server = Server()
self.server.set_endpoint('opc.tcp://localhost:4840/')
self.server.allow_remote_admin(True)
# setup our own namespace, not really necessary but should as spec
uri = "http://yourorganisation.org/DCSControllerDesign/"
self.idx = self.server.register_namespace(uri)
# get Objects node, this is where we should put our nodes
self.objects = self.server.get_objects_node()
# populating our address space; in most real use cases this should be
# imported from UA spec XML.
self.logger.notice('Import UA spec from xml ...')
self.server.import_xml('dcscontrollerdesign.xml')
self.dctni = ua.NodeId.from_string(f'ns={self.idx};i=1003')
self.logger.info(f'{self.dctni}')
self.logger.success('Done')
def __init__(self, template, template_directory, args):
Server.__init__(self)
self.template = template
self.variables = []
self.event_dict = {}
# 首先解析XML
self.parse()
async def task(loop):
# setup our server
server = Server()
await server.init()
server.set_endpoint('opc.tcp://0.0.0.0:4840/freeopcua/server/') #4840
# setup our own namespace, not really necessary but should as spec
uri = 'http://examples.freeopcua.github.io'
idx = await server.register_namespace(uri)
# get Objects node, this is where we should put our nodes
objects = server.get_objects_node()
await objects.add_method(ua.NodeId("ServerMethod", 2),
ua.QualifiedName('ServerMethod', 2), func,
[ua.VariantType.Int64], [ua.VariantType.Int64])
# populating our address space
myobj = await objects.add_object(idx, 'MyObject')
myvar = await myobj.add_variable(idx, 'MyVariable', 6.7)
await myvar.set_writable() # Set MyVariable to be writable by clients
# starting!
async with server:
count = 0
while True:
await asyncio.sleep(1)
count += 0.1
await myvar.set_value(count)
def check_or_create_server(self):
if not hasattr(self, "test_server"):
self.test_server = Server()
self.__server_thread = Thread(target=self.__server_run,
name="Test OPC UA server",
args=(self.test_server, ))
self.assertTrue(self.test_server is not None)
def __init__(
self,
endpoint: str = "opc.tcp://0.0.0.0:4840/intry4.0/server/",
server_name: str = "InTry 4.0 - OPC UA Server",
security_policy: List[ua.SecurityPolicyType] = None,
ns_uri: str = "urn:intry:opcua:server",
object_name: str = "variables",
last_row_file: str = "/var/intry-opcua-server/last_row.log",
certificate: str = "/var/intry-opcua-server/cert.der",
private_key: str = "/var/intry-opcua-server/key.pem",
min_time: int = 30,
logger=None,
):
if security_policy is None:
_security_policy = [
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic256Sha256_Sign,
ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
]
self._server = Server()
self.endpoint = endpoint
self._server.set_endpoint(self.endpoint)
self._server.set_security_policy(_security_policy)
self._server.load_certificate(certificate)
self._server.load_private_key(private_key)
self._ns_index = self._server.register_namespace(ns_uri)
self._object = self._server.nodes.objects.add_object(
self._ns_index, object_name
)
self._last_row_file = last_row_file
self._logger = logger or logging.getLogger(__name__)
self.last_row = {}
self._stop = False
self.min_time = min_time
def __init__(self):
self.server = None
self.uri = ""
self.idx = 0
self.scan_thread = None
self.scan_enable = False
self.devices = []
# setup our server
self.server = Server()
self.server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
# setup our own namespace, not really necessary but should as spec
uri = "http://examples.freeopcua.github.io"
idx = self.server.register_namespace(uri)
# import address space which has a device object
self.server.import_xml("device.xml")
# get Objects node
objects = self.server.get_objects_node()
# get the device object type so we can find all the devices in the address space
hw_type = self.server.nodes.base_object_type.get_child("2:Device")
device_nodes = find_o_types(objects, hw_type)
# instantiate a device python object and make it an attribute of the server class
# FIXME do your own organization, most likely an object oriented model
for device_node in device_nodes:
device = Device(self.server, device_node)
setattr(self, device.b_name, device)
# keep track of the device because so that we can update it cyclically using the driver
self.devices.append(device)
def setUp(self):
self.server = Server()
url = "opc.tcp://localhost:48400/freeopcua/server/"
self.server.set_endpoint(url)
self.server.start()
self.client = Window()
self.client.ui.addrComboBox.setCurrentText(url)
self.client.connect()
def __init__(self,
eflex_type=EFLEXAgentType.CONSUMER,
port=4840,
name="EFLEX Agent"):
self.eflex_type = eflex_type
self.name = name
self.port = port
self.server = Server()
self.configure_server(self.server)
def generate_server():
"""
GERANDO SERVIDOR - NOME, URL E IP
"""
server = Server()
server.set_endpoint(URL)
addspace = server.register_namespace(SERVER_NAME)
return server, addspace
def __init__(self):
self.server = Server()
# setup our server
self.server.set_endpoint(os.environ.get("SERVER_ENDPOINT"))
# setup our own namespace, not really necessary but should as spec
uri = os.environ.get("NAMESPACE")
self.idx = self.server.register_namespace(uri)
def setUpClass(self):
self.srv = Server()
self.srv.set_endpoint('opc.tcp://localhost:%d' % port_num)
add_server_methods(self.srv)
self.srv.start()
self.opc = self.srv
self.discovery = Server()
self.discovery.set_application_uri("urn:freeopcua:python:discovery")
self.discovery.set_endpoint('opc.tcp://localhost:%d' % port_discovery)
self.discovery.start()
def setUpClass(self):
self.srv = Server()
self.srv_url = 'opc.tcp://localhost:%d' % port_num
self.srv.set_endpoint(self.srv_url)
objects = self.srv.get_objects_node()
obj = objects.add_object(4, "directory")
var = obj.add_variable(4, "variable", 1.999)
var2 = obj.add_variable(4, "variable2", 1.777)
var2.set_writable()
self.srv.start()
def setUpClass(cls):
cls.srv = Server()
cls.srv.set_endpoint('opc.tcp://127.0.0.1:{0:d}'.format(port_num))
add_server_methods(cls.srv)
cls.srv.start()
cls.opc = cls.srv
cls.discovery = Server()
cls.discovery.set_application_uri("urn:freeopcua:python:discovery")
cls.discovery.set_endpoint('opc.tcp://127.0.0.1:{0:d}'.format(port_discovery))
cls.discovery.start()
def setUpClass(self):
self.srv = Server()
self.srv.set_endpoint('opc.tcp://localhost:%d' % port_num)
add_server_methods(self.srv)
self.srv.start()
self.opc = self.srv
self.discovery = Server()
self.discovery.set_application_uri("urn:freeopcua:python:discovery")
self.discovery.set_endpoint('opc.tcp://localhost:%d' % port_discovery)
self.discovery.start()
def start(self, host, port):
self.set_endpoint("opc.tcp://" + str(host) + ":" + str(port) + "/ua/server/")
logger.info('OPCUA server started on: %s', (host, port))
Server.start(self)
# Subscription Handler
handler = SubHandler()
sub = self.create_subscription(500, handler)
for ua_variable in self.variables:
sub.subscribe_data_change(ua_variable)
def __init__(self):
self.server = Server()
self.server.set_endpoint('opc.tcp://0.0.0.0:51210/UA/SampleServer')
self.server.set_server_name('Custom structure demo server')
# idx name will be used later for creating the xml used in data type dictionary
self._idx_name = 'http://examples.freeopcua.github.io'
self.idx = self.server.register_namespace(self._idx_name)
self.dict_builder = DataTypeDictionaryBuilder(self.server, self.idx, self._idx_name, 'MyDictionary')
def _init_server(self):
self._server = Server()
self._server.set_endpoint(self._endpoint)
self._server.set_server_name(self._name)
self._index = self._server.register_namespace(self._namespace)
_log.info("Index: %r" % (self._index,))
self._objects_node = self._server.get_objects_node()
_log.info("Node: %r" % (self._objects_node))
self._objects = {}
_log.info("Endpoints: %r" % (self._server.get_endpoints()))
def start(self):
server = Server()
server.set_endpoint("opc.tcp://0.0.0.0:4840/thingsroot/server")
server.set_server_name("ThingsRoot Example OpcUA Server")
self.idx = server.register_namespace("http://opcua.thingsroot.com")
self.objects = server.get_objects_node()
self.server = server
self.devices = _dict({})
self.devices_sub_handle = _dict({})
self.device_types = _dict({})
# self.load_redis_db()
server.start()
def run(self):
"""Instantiate and run server
"""
logger.info("starting OPC service")
params = self._params
self._server = Server()
self._server.set_endpoint(params["endpoint"])
self._server.set_server_name(params["name"])
idx = self._server.register_namespace(params["uri"])
self._create_nodes(idx, params["nodes"])
self._server.start()
self._start_simulations()
def _setup_nodes(self):
# Create server instance
self.ua_server = Server('./opcua_cache')
self.ua_server.set_endpoint('opc.tcp://0.0.0.0:4840/UA/PickByLight')
self.ua_server.set_server_name("Pick By Light Server")
# idx name will be used later for creating the xml used in data type dictionary
# setup our own namespace, not really necessary but should as spec
idx_name = 'http://examples.freeopcua.github.io'
self.idx = self.ua_server.register_namespace(idx_name)
# Set all possible endpoint policies for clients to connect through
self.ua_server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic128Rsa15_SignAndEncrypt,
ua.SecurityPolicyType.Basic128Rsa15_Sign,
ua.SecurityPolicyType.Basic256_SignAndEncrypt,
ua.SecurityPolicyType.Basic256_Sign
])
# get Objects node, this is where we should put our custom stuff
objects = self.ua_server.get_objects_node()
# Create objects for the pack tags using the above created packMLBasedObjectType
self.Status = objects.add_folder('ns=2;s=Status', "Status")
self.Command = objects.add_folder('ns=2;s=Command', "Command")
self.Command.add_method('ns=2;s=Command.SelectPort', "SelectPort",
self._select_method,
[ua.VariantType.Int32, ua.VariantType.String],
[ua.VariantType.Boolean])
self.Command.add_method('ns=2;s=Command.DeselectPort', "DeselectPort",
self._deselect_method, [ua.VariantType.Int32],
[ua.VariantType.Boolean])
self.Command.add_method('ns=2;s=Command.DeselectAllPorts',
"DeselectAllPorts", self._deselect_all_method,
[], [ua.VariantType.Boolean])
root = self.ua_server.get_root_node()
DummyFestoObj = root.add_object(
"ns=2;s=|var|CECC-LK.Application.Flexstation_globalVariables",
"DummyFesto")
DummyFestoObj.add_variable(
"ns=2;s=|var|CECC-LK.Application.Flexstation_globalVariables.FlexStationStatus",
"FlexStationStatus",
val=0).set_writable()
DummyFestoObj.add_variable(
"ns=2;s=|var|CECC-LK.Application.FBs.stpStopper1.stAppControl.uiOpNo",
"uiOpNo",
val=0).set_writable()
DummyFestoObj.add_variable(
"ns=2;s=ns=2;s=|var|CECC-LK.Application.AppModul.stRcvData.sOderDes",
"sOderDes",
val="").set_writable()
def init_opc(self):
"""Initializes the actual OPC Server and creates all folder, nodes, etc.
:return: None
"""
self._server = Server()
self._server.set_endpoint(
"opc.tcp://localhost:4840/sms-digital/iba-playback/")
self._server.set_server_name("iba Files Playback OPC UA Server")
# set all possible endpoint policies for clients to connect through
self._server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
ua.SecurityPolicyType.Basic256Sha256_Sign
])
# setup our own namespace
uri = "http://iba-playback.sms-digital.io"
idx = self._server.register_namespace(uri)
# add modules folder
modules = self._server.nodes.objects.add_folder(idx, "Modules")
for module, channel in self.iba_info['modules'].items():
print('\tModule: {} ...'.format(module))
# create a new folder for the module
module_folder = modules.add_folder(idx, module)
# create a folder for analog and digital signals
analog_folder = module_folder.add_folder(idx, 'Analog')
digital_folder = module_folder.add_folder(idx, 'Digital')
# add the channel
for chan in channel:
# create channel
if chan['type'] == 'analog':
opc_channel = analog_folder.add_object(idx, chan['name'])
val = 0.0
else:
opc_channel = digital_folder.add_object(idx, chan['name'])
val = False
# define the channel object
value_var = opc_channel.add_variable(idx, "value", val)
value_var.set_writable(True)
for key, val in chan.items():
opc_channel.add_variable(idx, key, val).set_writable(False)
# store the handles to the value variable and the opc_channel in the channel dict
chan['opc_obj'] = opc_channel
chan['opc_value'] = value_var
def run_simulation_server(steps):
"""
This support function creates a simple OPC UA server with node listed in the config file
:param steps: Lifecycle of the server
:return:
"""
with open('../src_test/config_test.yaml') as config_file:
cfg = yaml.safe_load(config_file)
# setup the server
server = Server()
server.set_endpoint(cfg['opcua']['url'])
# setup the namespace
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
# get objects node
objects = server.get_objects_node()
# server start
server.start()
log_event(cfg, 'OPCUA TEST SERVER', '', 'INFO', 'OPC UA server started')
# populating the address space
myobj = objects.add_object(idx, "TestDataAssembly")
nodes = []
metrics = cfg['metrics']
for metric in metrics:
metric_id = metric['metric_id']
meas = metric['measurement']
tag = metric['tagname']
var = metric['variable']
ns = metric['nodeNamespace']
id = metric['nodeId']
method = metric['method']
time_interval = metric['interval']
node_str = 'ns=' + str(ns) + '; i=' + str(id)
nodes.append(myobj.add_variable(node_str, var, -1))
# update variable
time.sleep(1)
for it in range(steps):
for node in nodes:
node.set_value(node.get_value() + 1)
time.sleep(0.5)
time.sleep(2)
server.stop()
log_event(cfg, 'OPCUA TEST SERVER', '', 'INFO', 'OPC UA server stopped')
def main():
# setup our server
server = Server()
server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
# setup our own namespace, not really necessary but should as spec
server_namespace = "http://examples.freeopcua.github.io"
address_space = server.register_namespace(server_namespace)
# get Objects node, this is where we should put our custom stuff
objects_node = server.get_objects_node()
# Add the ocp objects (vars, features,...)
# cresting the first object
my_first_object = objects_node.add_object(address_space, "MyFirstObject")
##creating an array
my_array = ChargeControllerObject.add_variable(address_space, "MyArray",
[6.7, 7.9])
# the variable could be hard typed
my_hardtyped_array = ChargeControllerObject.add_variable(
address_space, "MyHardtypedArray", ua.Variant([],
ua.VariantType.Float))
# starting!
server.start()
print("Server starting ...")
while True:
time.sleep(1)
## update array variables
burst = [random.random() for _ in range(1024)]
my_array.set_value(burst)
my_hardtyped_array.set_value(burst)
def start_server(url):
server = Server()
server.set_endpoint(url)
name = "OPC UA Simulation Server"
addspace = server.register_namespace(name)
node = server.get_objects_node()
lvl = node.add_object(addspace, "Level Sensors")
lvl1 = lvl.add_variable(addspace, "LVL1", 5)
lvl2 = lvl.add_variable(addspace, "LVL2", 6)
lvl3 = lvl.add_variable(addspace, "LVL3", 7)
lvl4 = lvl.add_variable(addspace, "LVL4", 8)
lvl5 = lvl.add_variable(addspace, "LVL5", 9)
lvl6 = lvl.add_variable(addspace, "LVL6", 10)
flow = node.add_object(addspace, "Flow Sensors")
flow1 = flow.add_variable(addspace, "FLOW1", 1)
flow2 = flow.add_variable(addspace, "FLOW2", 2)
flow3 = flow.add_variable(addspace, "FLOW3", 3)
flow4 = flow.add_variable(addspace, "FLOW4", 4)
pump = node.add_object(addspace, "Pump Actuators")
pump1 = pump.add_variable(addspace, "PUMP1", 0.1)
pump2 = pump.add_variable(addspace, "PUMP2", 0.2)
pump3 = pump.add_variable(addspace, "PUMP3", 0.3)
pump4 = pump.add_variable(addspace, "PUMP4", 0.4)
pump5 = pump.add_variable(addspace, "PUMP5", 0.5)
pump6 = pump.add_variable(addspace, "PUMP6", 0.6)
server.start()
return server
def start_server(self, endpoint):
logger.info("Starting python-opcua server")
self._server = Server()
self._server.set_endpoint(endpoint)
self._server.set_server_name("OpcUa Modeler Server")
self.nodes = self._server.nodes
self.get_node = self._server.get_node
self.get_namespace_array = self._server.get_namespace_array
# now remove freeopcua namespace, not necessary when modeling and
# ensures correct idx for exported nodesets
ns_node = self._server.get_node(ua.NodeId(ua.ObjectIds.Server_NamespaceArray))
nss = ns_node.get_value()
ns_node.set_value(nss[1:])
self._server.start()
class EFLEXAgent():
def __init__(self,
eflex_type=EFLEXAgentType.CONSUMER,
port=4840,
name="EFLEX Agent"):
self.eflex_type = eflex_type
self.name = name
self.port = port
self.server = Server()
self.configure_server(self.server)
def __str__(self):
return "EFLEX AGENT OPC UA Server: %s" % self.port
def configure_server(self, server):
"""
Configure the agent OPC UA Server
"""
server.set_endpoint("opc.tcp://0.0.0.0:%s/EFlex-Agent" % self.port)
server.set_server_name("%s" % self.name)
server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
ua.SecurityPolicyType.Basic256Sha256_Sign
])
server.set_application_uri("urn:fau:faps:OPCUAEFLEXAgent:server")
objects = server.get_objects_node()
server.import_xml("./IM/Opc.Ua.Di.NodeSet2.xml")
server.import_xml("./IM/Opc.Ua.Plc.NodeSet2.xml")
server.import_xml("./IM/packmltest.xml")
server.import_xml("./IM/packml_eflex_modified.xml")
uri = "http://faps.fau.de/OPCUAEFLEXAgent"
idx = server.register_namespace(uri)
idx_eflex = server.get_namespace_index(
"http://siemens.com/PackML_Eflex/")
# Configure the method calls
method_node = server.get_node(ua.NodeId(9850), idx_eflex)
def start(self):
"""
Start the agent OPC UA Server
"""
self.server.start()
def stop(self):
"""
Stop the agent OPC UA Server
"""
self.server.stop()
def setUpClass(self):
# start our own server
self.srv_crypto = Server()
self.uri_crypto = 'opc.tcp://localhost:%d' % port_num1
self.srv_crypto.set_endpoint(self.uri_crypto)
# load server certificate and private key. This enables endpoints
# with signing and encryption.
self.srv_crypto.load_certificate("examples/certificate-example.der")
self.srv_crypto.load_private_key("examples/private-key-example.pem")
self.srv_crypto.start()
# start a server without crypto
self.srv_no_crypto = Server()
self.uri_no_crypto = 'opc.tcp://localhost:%d' % port_num2
self.srv_no_crypto.set_endpoint(self.uri_no_crypto)
self.srv_no_crypto.start()
def runTest(self):
tmpfile = NamedTemporaryFile()
path = tmpfile.name
tmpfile.close()
#create cache file
server = Server(cacheFile = path)
#modify cache content
id = ua.NodeId(ua.ObjectIds.Server_ServerStatus_SecondsTillShutdown)
s = shelve.open(path, "w", writeback = True)
s[id.to_string()].attributes[ua.AttributeIds.Value].value = ua.DataValue(123)
s.close()
#ensure that we are actually loading from the cache
server = Server(cacheFile = path)
self.assertEqual(server.get_node(id).get_value(), 123)
os.remove(path)
def setUpClass(self):
self.srv = Server()
self.srv_url = 'opc.tcp://localhost:%d' % port_num
self.srv.set_endpoint(self.srv_url)
objects = self.srv.get_objects_node()
obj = objects.add_object(4, "directory")
var = obj.add_variable(4, "variable", 1.999)
var2 = obj.add_variable(4, "variable2", 1.777)
var2.set_writable()
self.srv.start()
def setUpClass(self):
# start our own server
self.srv = Server()
self.srv.set_endpoint('opc.tcp://localhost:%d' % port_num1)
add_server_methods(self.srv)
self.srv.start()
# start client
self.clt = Client('opc.tcp://localhost:%d' % port_num1)
self.clt.connect()
self.opc = self.clt
class TestClient(unittest.TestCase, CommonTests):
'''
Run common tests on client side
Of course we need a server so we start a server in another
process using python Process module
Tests that can only be run on client side must be defined here
'''
@classmethod
def setUpClass(self):
# start our own server
self.srv = Server()
self.srv.set_endpoint('opc.tcp://localhost:%d' % port_num1)
add_server_methods(self.srv)
self.srv.start()
# start client
self.clt = Client('opc.tcp://localhost:%d' % port_num1)
self.clt.connect()
self.opc = self.clt
@classmethod
def tearDownClass(self):
self.clt.disconnect()
# stop the server in its own process
self.srv.stop()
def test_service_fault(self):
request = ua.ReadRequest()
request.TypeId = ua.FourByteNodeId(999) # bad type!
with self.assertRaises(Exception):
self.clt.bclient._send_request(request)
class ServerPython(object):
def __init__(self):
self._server = None
self.nodes = None
self.get_node = None
self.get_namespace_array = None
def start_server(self, endpoint):
logger.info("Starting python-opcua server")
self._server = Server()
self._server.set_endpoint(endpoint)
self._server.set_server_name("OpcUa Modeler Server")
self.nodes = self._server.nodes
self.get_node = self._server.get_node
self.get_namespace_array = self._server.get_namespace_array
self.load_type_definitions = self._server.load_type_definitions
self.load_enums = self._server.load_enums
# now remove freeopcua namespace, not necessary when modeling and
# ensures correct idx for exported nodesets
ns_node = self._server.get_node(ua.NodeId(ua.ObjectIds.Server_NamespaceArray))
nss = ns_node.get_value()
ns_node.set_value(nss[:1])
self._server.start()
def stop_server(self):
if self._server is not None:
self._server.stop()
self._server = None
self.get_node = None
self.get_namespace_array = None
def import_xml(self, path):
return self._server.import_xml(path)
def export_xml(self, nodes, uris, path):
exp = XmlExporter(self._server)
exp.build_etree(nodes, uris=uris)
exp.write_xml(path)
class TestServer(unittest.TestCase, CommonTests):
'''
Run common tests on server side
Tests that can only be run on server side must be defined here
'''
@classmethod
def setUpClass(self):
self.srv = Server()
self.srv.set_endpoint('opc.tcp://localhost:%d' % port_num2)
add_server_methods(self.srv)
self.srv.start()
self.opc = self.srv
@classmethod
def tearDownClass(self):
self.srv.stop()
def test_register_namespace(self):
uri = 'http://mycustom.Namespace.com'
idx1 = self.opc.register_namespace(uri)
idx2 = self.opc.get_namespace_index(uri)
self.assertEqual(idx1, idx2)
def test_register_use_namespace(self):
uri = 'http://my_very_custom.Namespace.com'
idx = self.opc.register_namespace(uri)
root = self.opc.get_root_node()
myvar = root.add_variable(idx, 'var_in_custom_namespace', [5])
myid = myvar.nodeid
self.assertEqual(idx, myid.NamespaceIndex)
def test_server_method(self):
def func(parent, variant):
variant.Value *= 2
return [variant]
o = self.opc.get_objects_node()
v = o.add_method(3, 'Method1', func, [ua.VariantType.Int64], [ua.VariantType.Int64])
result = o.call_method(v, ua.Variant(2.1))
self.assertEqual(result, 4.2)
def test_xml_import(self):
self.srv.import_xml("tests/custom_nodes.xml")
o = self.opc.get_objects_node()
v = o.get_child(["MyXMLFolder", "MyXMLObject", "MyXMLVariable"])
val = v.get_value()
self.assertEqual(val, "StringValue")
def setUpClass(self):
# start our own server
self.srv = Server()
self.srv.set_endpoint("opc.tcp://*****:*****@localhost:%d" % port_num1)
self.clt.connect()
self.opc = self.clt
# start anonymous client
self.ro_clt = Client("opc.tcp://localhost:%d" % port_num1)
self.ro_clt.connect()
def mymain():
# setup our server
server = Server()
server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
# setup our own namespace, not really necessary but should as spec
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
# get Objects node, this is where we should put our nodes
objects = server.get_objects_node()
# populating our address space
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myvar.set_writable() # Set MyVariable to be writable by clients
# starting!
server.start()
server.stop()
def start_server(self, endpoint):
logger.info("Starting python-opcua server")
self._server = Server()
self._server.set_endpoint(endpoint)
self._server.set_server_name("OpcUa Modeler Server")
self.nodes = self._server.nodes
self.get_node = self._server.get_node
self.get_namespace_array = self._server.get_namespace_array
self.load_type_definitions = self._server.load_type_definitions
self.load_enums = self._server.load_enums
# now remove freeopcua namespace, not necessary when modeling and
# ensures correct idx for exported nodesets
ns_node = self._server.get_node(ua.NodeId(ua.ObjectIds.Server_NamespaceArray))
nss = ns_node.get_value()
ns_node.set_value(nss[:1])
self._server.start()
def setUpClass(self):
# start our own server
self.srv = Server()
self.srv.set_endpoint('opc.tcp://*****:*****@localhost:%d' % port_num1, timeout=10)
self.clt.connect()
self.opc = self.clt
# start anonymous client
self.ro_clt = Client('opc.tcp://localhost:%d' % port_num1)
self.ro_clt.connect()
class TestRefsWidget(unittest.TestCase):
def setUp(self):
self.server = Server()
self.server.set_endpoint("opc.tcp://0.0.0.0:48409/freeopcua/server/")
self.server.start()
self.widget = RefsWidget(QTableView())
def tearDown(self):
self.server.stop()
def test_1(self):
o = self.server.nodes.objects
self.widget.show_refs(o)
class TestCmdLines(unittest.TestCase):
'''
Test command lines
'''
@classmethod
def setUpClass(self):
self.srv = Server()
self.srv_url = 'opc.tcp://localhost:%d' % port_num
self.srv.set_endpoint(self.srv_url)
objects = self.srv.get_objects_node()
obj = objects.add_object(4, "directory")
var = obj.add_variable(4, "variable", 1.999)
var2 = obj.add_variable(4, "variable2", 1.777)
var2.set_writable()
self.srv.start()
def test_uals(self):
s = subprocess.check_output(["python", "tools/uals", "--url", self.srv_url])
self.assertIn(b"i=85", s)
self.assertNotIn(b"i=89", s)
self.assertNotIn(b"1.999", s)
s = subprocess.check_output(["python", "tools/uals", "--url", self.srv_url, "-d", "3"])
self.assertIn(b"1.999", s)
def test_uaread(self):
s = subprocess.check_output(["python", "tools/uaread", "--url", self.srv_url, "--path", "0:Objects,4:directory,4:variable"])
self.assertIn(b"1.999", s)
def test_uawrite(self):
s = subprocess.check_output(["python", "tools/uawrite", "--url", self.srv_url, "--path", "0:Objects,4:directory,4:variable2", "1.789"])
s = subprocess.check_output(["python", "tools/uaread", "--url", self.srv_url, "--path", "0:Objects,4:directory,4:variable2"])
self.assertIn(b"1.789", s)
self.assertNotIn(b"1.999", s)
def test_uadiscover(self):
s = subprocess.check_output(["python", "tools/uadiscover", "--url", self.srv_url])
self.assertIn(b"opc.tcp://localhost", s)
self.assertIn(b"FreeOpcUa", s)
self.assertIn(b"urn:freeopcua:python:server", s)
@classmethod
def tearDownClass(self):
self.srv.stop()
def __init__(self, endpoint, name, model_filepath):
self.server = Server()
# This need to be imported at the start or else it will overwrite the data
self.server.import_xml(model_filepath)
self.server.set_endpoint(endpoint)
self.server.set_server_name(name)
objects = self.server.get_objects_node()
freeopcua_namespace = self.server.get_namespace_index("urn:freeopcua:python:server")
hellower = objects.get_child("0:Hellower")
hellower_say_hello = hellower.get_child("0:SayHello")
self.server.link_method(hellower_say_hello, say_hello_xml)
hellower.add_method(
freeopcua_namespace, "SayHello2", say_hello, [ua.VariantType.Boolean], [ua.VariantType.String])
hellower.add_method(
freeopcua_namespace, "SayHelloArray", say_hello_array, [ua.VariantType.Boolean], [ua.VariantType.String])
class TestClient(unittest.TestCase):
def setUp(self):
self.server = Server()
url = "opc.tcp://localhost:48400/freeopcua/server/"
self.server.set_endpoint(url)
self.server.start()
self.client = Window()
self.client.ui.addrComboBox.setCurrentText(url)
self.client.connect()
def tearDown(self):
self.client.disconnect()
self.server.stop()
def get_attr_value(self, text):
idxlist = self.client.attrs_ui.model.match(self.client.attrs_ui.model.index(0, 0), Qt.DisplayRole, text, 1, Qt.MatchExactly | Qt.MatchRecursive)
idx = idxlist[0]
idx = idx.sibling(idx.row(), 1)
item = self.client.attrs_ui.model.itemFromIndex(idx)
return item.data(Qt.UserRole).value
def test_select_objects(self):
objects = self.server.nodes.objects
self.client.tree_ui.set_current_node("Objects")
self.assertEqual(objects, self.client.tree_ui.get_current_node())
self.assertGreater(self.client.attrs_ui.model.rowCount(), 6)
print("REF COUNT", self.client.refs_ui.model.rowCount())
self.assertGreater(self.client.refs_ui.model.rowCount(), 1)
data = self.get_attr_value("NodeId")
self.assertEqual(data, objects.nodeid)
def test_select_server_node(self):
self.client.tree_ui.set_current_node("Objects")
self.client.tree_ui.expand_current_node() # must be expanded to load children
server_node = self.server.nodes.server
self.client.tree_ui.set_current_node("Server")
self.assertEqual(server_node, self.client.tree_ui.get_current_node())
self.assertGreater(self.client.attrs_ui.model.rowCount(), 6)
self.assertGreater(self.client.refs_ui.model.rowCount(), 10)
data = self.get_attr_value("NodeId")
self.assertEqual(data, server_node.nodeid)
class TestServer(unittest.TestCase, CommonTests):
"""
Run common tests on server side
Tests that can only be run on server side must be defined here
"""
@classmethod
def setUpClass(self):
self.srv = Server()
self.srv.set_endpoint("opc.tcp://localhost:%d" % port_num2)
add_server_methods(self.srv)
self.srv.start()
self.opc = self.srv
@classmethod
def tearDownClass(self):
self.srv.stop()
def test_register_namespace(self):
uri = "http://mycustom.Namespace.com"
idx1 = self.opc.register_namespace(uri)
idx2 = self.opc.get_namespace_index(uri)
self.assertEqual(idx1, idx2)
def test_register_use_namespace(self):
uri = "http://my_very_custom.Namespace.com"
idx = self.opc.register_namespace(uri)
root = self.opc.get_root_node()
myvar = root.add_variable(idx, "var_in_custom_namespace", [5])
myid = myvar.nodeid
self.assertEqual(idx, myid.NamespaceIndex)
def test_server_method(self):
def func(parent, variant):
variant.Value *= 2
return [variant]
o = self.opc.get_objects_node()
v = o.add_method(3, "Method1", func, [ua.VariantType.Int64], [ua.VariantType.Int64])
result = o.call_method(v, ua.Variant(2.1))
self.assertEqual(result, 4.2)
import sys
sys.path.insert(0, "..")
import time
import math
from opcua import ua, Server
from opcua.server.history_sql import HistorySQLite
if __name__ == "__main__":
# setup our server
server = Server()
server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
# setup our own namespace, not really necessary but should as spec
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
# get Objects node, this is where we should put our custom stuff
objects = server.get_objects_node()
# populating our address space
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", ua.Variant(0, ua.VariantType.Double))
myvar.set_writable() # Set MyVariable to be writable by clients
# Creating a custom event: Approach 1
# The custom event object automatically will have members from its parent (BaseEventType)
etype = server.create_custom_event_type(2, 'MyFirstEvent', ua.ObjectIds.BaseEventType,
def uaserver():
parser = argparse.ArgumentParser(description="Run an example OPC-UA server. By importing xml definition and using uawrite command line, it is even possible to expose real data using this server")
# we setup a server, this is a bit different from other tool so we do not reuse common arguments
parser.add_argument("-u",
"--url",
help="URL of OPC UA server, default is opc.tcp://0.0.0.0:4840",
default='opc.tcp://0.0.0.0:4840',
metavar="URL")
parser.add_argument("-v",
"--verbose",
dest="loglevel",
choices=['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'],
default='WARNING',
help="Set log level")
parser.add_argument("-x",
"--xml",
metavar="XML_FILE",
help="Populate address space with nodes defined in XML")
parser.add_argument("-p",
"--populate",
action="store_true",
help="Populate address space with some sample nodes")
parser.add_argument("-c",
"--disable-clock",
action="store_true",
help="Disable clock, to avoid seeing many write if debugging an application")
parser.add_argument("-s",
"--shell",
action="store_true",
help="Start python shell instead of randomly changing node values")
parser.add_argument("--certificate",
help="set server certificate")
parser.add_argument("--private_key",
help="set server private key")
args = parser.parse_args()
logging.basicConfig(format="%(levelname)s: %(message)s", level=getattr(logging, args.loglevel))
server = Server()
server.set_endpoint(args.url)
if args.certificate:
server.load_certificate(args.certificate)
if args.private_key:
server.load_private_key(args.private_key)
server.disable_clock(args.disable_clock)
server.set_server_name("FreeOpcUa Example Server")
if args.xml:
server.import_xml(args.xml)
if args.populate:
@uamethod
def multiply(parent, x, y):
print("multiply method call with parameters: ", x, y)
return x * y
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
objects = server.get_objects_node()
myobj = objects.add_object(idx, "MyObject")
mywritablevar = myobj.add_variable(idx, "MyWritableVariable", 6.7)
mywritablevar.set_writable() # Set MyVariable to be writable by clients
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myarrayvar = myobj.add_variable(idx, "MyVarArray", [6.7, 7.9])
myprop = myobj.add_property(idx, "MyProperty", "I am a property")
mymethod = myobj.add_method(idx, "MyMethod", multiply, [ua.VariantType.Double, ua.VariantType.Int64], [ua.VariantType.Double])
server.start()
try:
if args.shell:
embed()
elif args.populate:
count = 0
while True:
time.sleep(1)
myvar.set_value(math.sin(count / 10))
myarrayvar.set_value([math.sin(count / 10), math.sin(count / 100)])
count += 1
else:
while True:
time.sleep(1)
finally:
server.stop()
sys.exit(0)
class TestClient(unittest.TestCase, CommonTests, SubscriptionTests):
'''
Run common tests on client side
Of course we need a server so we start also start a server
Tests that can only be run on client side must be defined in this class
'''
@classmethod
def setUpClass(self):
# start our own server
self.srv = Server()
self.srv.set_endpoint('opc.tcp://*****:*****@localhost:%d' % port_num1, timeout=10)
self.clt.connect()
self.opc = self.clt
# start anonymous client
self.ro_clt = Client('opc.tcp://localhost:%d' % port_num1)
self.ro_clt.connect()
@classmethod
def tearDownClass(self):
#stop our clients
self.ro_clt.disconnect()
self.clt.disconnect()
# stop the server
self.srv.stop()
def test_service_fault(self):
request = ua.ReadRequest()
request.TypeId = ua.FourByteNodeId(999) # bad type!
with self.assertRaises(ua.UaStatusCodeError):
self.clt.uaclient._uasocket.send_request(request)
def test_objects_anonymous(self):
objects = self.ro_clt.get_objects_node()
with self.assertRaises(ua.UaStatusCodeError):
objects.set_attribute(ua.AttributeIds.WriteMask, ua.DataValue(999))
with self.assertRaises(ua.UaStatusCodeError):
f = objects.add_folder(3, 'MyFolder')
def test_folder_anonymous(self):
objects = self.clt.get_objects_node()
f = objects.add_folder(3, 'MyFolderRO')
f_ro = self.ro_clt.get_node(f.nodeid)
self.assertEqual(f, f_ro)
with self.assertRaises(ua.UaStatusCodeError):
f2 = f_ro.add_folder(3, 'MyFolder2')
def test_variable_anonymous(self):
objects = self.clt.get_objects_node()
v = objects.add_variable(3, 'MyROVariable', 6)
v.set_value(4) #this should work
v_ro = self.ro_clt.get_node(v.nodeid)
with self.assertRaises(ua.UaStatusCodeError):
v_ro.set_value(2)
self.assertEqual(v_ro.get_value(), 4)
v.set_writable(True)
v_ro.set_value(2) #now it should work
self.assertEqual(v_ro.get_value(), 2)
v.set_writable(False)
with self.assertRaises(ua.UaStatusCodeError):
v_ro.set_value(9)
self.assertEqual(v_ro.get_value(), 2)
def test_context_manager(self):
""" Context manager calls connect() and disconnect()
"""
state = [0]
def increment_state(self, *args, **kwargs):
state[0] += 1
# create client and replace instance methods with dummy methods
client = Client('opc.tcp://dummy_address:10000')
client.connect = increment_state.__get__(client)
client.disconnect = increment_state.__get__(client)
assert state[0] == 0
with client:
# test if client connected
self.assertEqual(state[0], 1)
# test if client disconnected
self.assertEqual(state[0], 2)
if __name__ == "__main__":
# optional: setup logging
logging.basicConfig(level=logging.WARN)
#logger = logging.getLogger("opcua.address_space")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.internal_server")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.binary_server_asyncio")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.uaprocessor")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.subscription_service")
# logger.setLevel(logging.DEBUG)
# now setup our server
server = Server()
#server.set_endpoint("opc.tcp://localhost:4841/freeopcua/server/")
server.set_endpoint("opc.tcp://0.0.0.0:4841/freeopcua/server/")
server.set_server_name("FreeOpcUa Example Server")
# setup our own namespace
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
# get Objects node, this is where we should put our custom stuff
objects = server.get_objects_node()
# populating our address space
myfolder = objects.add_folder(idx, "myEmptyFolder")
myobj = objects.add_object(idx, "NewObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
import sys
sys.path.insert(0, "..")
import time
from opcua import ua, Server
if __name__ == "__main__":
# setup our server
server = Server()
server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
# setup our own namespace, not really necessary but should as spec
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
# get Objects node, this is where we should put our custom stuff
objects = server.get_objects_node()
# populating our address space
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myvar.set_writable() # Set MyVariable to be writable by clients
# starting!
server.start()
try:
count = 0
class TestServer(unittest.TestCase, CommonTests, SubscriptionTests):
'''
Run common tests on server side
Tests that can only be run on server side must be defined here
'''
@classmethod
def setUpClass(self):
self.srv = Server()
self.srv.set_endpoint('opc.tcp://localhost:%d' % port_num)
add_server_methods(self.srv)
self.srv.start()
self.opc = self.srv
self.discovery = Server()
self.discovery.set_application_uri("urn:freeopcua:python:discovery")
self.discovery.set_endpoint('opc.tcp://localhost:%d' % port_discovery)
self.discovery.start()
@classmethod
def tearDownClass(self):
self.srv.stop()
self.discovery.stop()
def test_discovery(self):
client = Client(self.discovery.endpoint.geturl())
client.connect()
try:
servers = client.find_servers()
new_app_uri = "urn:freeopcua:python:server:test_discovery"
self.srv.application_uri = new_app_uri
self.srv.register_to_discovery(self.discovery.endpoint.geturl(), 0)
time.sleep(0.1) # let server register registration
new_servers = client.find_servers()
self.assertEqual(len(new_servers) - len(servers) , 1)
self.assertFalse(new_app_uri in [s.ApplicationUri for s in servers])
self.assertTrue(new_app_uri in [s.ApplicationUri for s in new_servers])
finally:
client.disconnect()
def test_find_servers2(self):
client = Client(self.discovery.endpoint.geturl())
client.connect()
try:
servers = client.find_servers()
new_app_uri1 = "urn:freeopcua:python:server:test_discovery1"
self.srv.application_uri = new_app_uri1
self.srv.register_to_discovery(self.discovery.endpoint.geturl(), period=0)
new_app_uri2 = "urn:freeopcua:python:test_discovery2"
self.srv.application_uri = new_app_uri2
self.srv.register_to_discovery(self.discovery.endpoint.geturl(), period=0)
time.sleep(0.1) # let server register registration
new_servers = client.find_servers()
self.assertEqual(len(new_servers) - len(servers) , 2)
self.assertFalse(new_app_uri1 in [s.ApplicationUri for s in servers])
self.assertFalse(new_app_uri2 in [s.ApplicationUri for s in servers])
self.assertTrue(new_app_uri1 in [s.ApplicationUri for s in new_servers])
self.assertTrue(new_app_uri2 in [s.ApplicationUri for s in new_servers])
# now do a query with filer
new_servers = client.find_servers(["urn:freeopcua:python:server"])
self.assertEqual(len(new_servers) - len(servers) , 0)
self.assertTrue(new_app_uri1 in [s.ApplicationUri for s in new_servers])
self.assertFalse(new_app_uri2 in [s.ApplicationUri for s in new_servers])
# now do a query with filer
new_servers = client.find_servers(["urn:freeopcua:python"])
self.assertEqual(len(new_servers) - len(servers) , 2)
self.assertTrue(new_app_uri1 in [s.ApplicationUri for s in new_servers])
self.assertTrue(new_app_uri2 in [s.ApplicationUri for s in new_servers])
finally:
client.disconnect()
"""
# not sure if this test is necessary, and there is a lot repetition with previous test
def test_discovery_server_side(self):
servers = self.discovery.find_servers()
self.assertEqual(len(servers), 1)
self.srv.register_to_discovery(self.discovery.endpoint.geturl(), 1)
time.sleep(1) # let server register registration
servers = self.discovery.find_servers()
print("SERVERS 2", servers)
self.assertEqual(len(servers), 2)
"""
#def test_register_server2(self):
#servers = self.opc.register_server()
def test_register_namespace(self):
uri = 'http://mycustom.Namespace.com'
idx1 = self.opc.register_namespace(uri)
idx2 = self.opc.get_namespace_index(uri)
self.assertEqual(idx1, idx2)
def test_register_use_namespace(self):
uri = 'http://my_very_custom.Namespace.com'
idx = self.opc.register_namespace(uri)
root = self.opc.get_root_node()
myvar = root.add_variable(idx, 'var_in_custom_namespace', [5])
myid = myvar.nodeid
self.assertEqual(idx, myid.NamespaceIndex)
def test_server_method(self):
def func(parent, variant):
variant.Value *= 2
return [variant]
o = self.opc.get_objects_node()
v = o.add_method(3, 'Method1', func, [ua.VariantType.Int64], [ua.VariantType.Int64])
result = o.call_method(v, ua.Variant(2.1))
self.assertEqual(result, 4.2)
def test_xml_import(self):
self.srv.import_xml("tests/custom_nodes.xml")
o = self.opc.get_objects_node()
v = o.get_child(["MyXMLFolder", "MyXMLObject", "MyXMLVariable"])
val = v.get_value()
self.assertEqual(val, "StringValue")
def test_historize_variable(self):
o = self.opc.get_objects_node()
var = o.add_variable(3, "test_hist", 1.0)
self.srv.iserver.enable_history_data_change(var, timedelta(days=1))
time.sleep(1)
var.set_value(2.0)
var.set_value(3.0)
self.srv.iserver.disable_history_data_change(var)
def test_historize_events(self):
srv_node = self.srv.get_node(ua.ObjectIds.Server)
srvevgen = self.srv.get_event_generator()
self.srv.iserver.enable_history_event(srv_node, period=None)
srvevgen.trigger(message="Message")
self.srv.iserver.disable_history_event(srv_node)
def test_references_for_added_nodes_method(self):
objects = self.opc.get_objects_node()
o = objects.add_object(3, 'MyObject')
nodes = objects.get_referenced_nodes(refs=ua.ObjectIds.Organizes, direction=ua.BrowseDirection.Forward, includesubtypes=False)
self.assertTrue(o in nodes)
nodes = o.get_referenced_nodes(refs=ua.ObjectIds.Organizes, direction=ua.BrowseDirection.Inverse, includesubtypes=False)
self.assertTrue(objects in nodes)
self.assertEqual(o.get_parent(), objects)
self.assertEqual(o.get_type_definition(), ua.ObjectIds.BaseObjectType)
@uamethod
def callback(parent):
return
m = o.add_method(3, 'MyMethod', callback)
nodes = o.get_referenced_nodes(refs=ua.ObjectIds.HasComponent, direction=ua.BrowseDirection.Forward, includesubtypes=False)
self.assertTrue(m in nodes)
nodes = m.get_referenced_nodes(refs=ua.ObjectIds.HasComponent, direction=ua.BrowseDirection.Inverse, includesubtypes=False)
self.assertTrue(o in nodes)
self.assertEqual(m.get_parent(), o)
# This should work for following BaseEvent tests to work (maybe to write it a bit differentlly since they are not independent)
def test_get_event_from_type_node_BaseEvent(self):
ev = opcua.common.events.get_event_obj_from_type_node(opcua.Node(self.opc.iserver.isession, ua.NodeId(ua.ObjectIds.BaseEventType)))
check_base_event(self, ev)
def test_get_event_from_type_node_Inhereted_AuditEvent(self):
ev = opcua.common.events.get_event_obj_from_type_node(opcua.Node(self.opc.iserver.isession, ua.NodeId(ua.ObjectIds.AuditEventType)))
self.assertIsNot(ev, None) # we did not receive event
self.assertIsInstance(ev, BaseEvent)
self.assertIsInstance(ev, AuditEvent)
self.assertEqual(ev.EventType, ua.NodeId(ua.ObjectIds.AuditEventType))
self.assertEqual(ev.Severity, 1)
self.assertEqual(ev.ActionTimeStamp, None)
self.assertEqual(ev.Status, False)
self.assertEqual(ev.ServerId, None)
self.assertEqual(ev.ClientAuditEntryId, None)
self.assertEqual(ev.ClientUserId, None)
def test_eventgenerator_default(self):
evgen = self.opc.get_event_generator()
check_eventgenerator_BaseEvent(self, evgen)
check_eventgenerator_SourceServer(self, evgen)
def test_eventgenerator_BaseEvent_object(self):
evgen = self.opc.get_event_generator(BaseEvent())
check_eventgenerator_BaseEvent(self, evgen)
check_eventgenerator_SourceServer(self, evgen)
def test_eventgenerator_BaseEvent_Node(self):
evgen = self.opc.get_event_generator(opcua.Node(self.opc.iserver.isession, ua.NodeId(ua.ObjectIds.BaseEventType)))
check_eventgenerator_BaseEvent(self, evgen)
check_eventgenerator_SourceServer(self, evgen)
def test_eventgenerator_BaseEvent_NodeId(self):
evgen = self.opc.get_event_generator(ua.NodeId(ua.ObjectIds.BaseEventType))
check_eventgenerator_BaseEvent(self, evgen)
check_eventgenerator_SourceServer(self, evgen)
def test_eventgenerator_BaseEvent_ObjectIds(self):
evgen = self.opc.get_event_generator(ua.ObjectIds.BaseEventType)
check_eventgenerator_BaseEvent(self, evgen)
check_eventgenerator_SourceServer(self, evgen)
def test_eventgenerator_BaseEvent_Identifier(self):
evgen = self.opc.get_event_generator(2041)
check_eventgenerator_BaseEvent(self, evgen)
check_eventgenerator_SourceServer(self, evgen)
def test_eventgenerator_sourceServer_Node(self):
evgen = self.opc.get_event_generator(source=opcua.Node(self.opc.iserver.isession, ua.NodeId(ua.ObjectIds.Server)))
check_eventgenerator_BaseEvent(self, evgen)
check_eventgenerator_SourceServer(self, evgen)
def test_eventgenerator_sourceServer_NodeId(self):
evgen = self.opc.get_event_generator(source=ua.NodeId(ua.ObjectIds.Server))
check_eventgenerator_BaseEvent(self, evgen)
check_eventgenerator_SourceServer(self, evgen)
def test_eventgenerator_sourceServer_ObjectIds(self):
evgen = self.opc.get_event_generator(source=ua.ObjectIds.Server)
check_eventgenerator_BaseEvent(self, evgen)
check_eventgenerator_SourceServer(self, evgen)
def test_eventgenerator_sourceMyObject(self):
objects = self.opc.get_objects_node()
o = objects.add_object(3, 'MyObject')
evgen = self.opc.get_event_generator(source=o)
check_eventgenerator_BaseEvent(self, evgen)
check_event_generator_object(self, evgen, o)
def test_eventgenerator_source_collision(self):
objects = self.opc.get_objects_node()
o = objects.add_object(3, 'MyObject')
event = BaseEvent(sourcenode=o.nodeid)
evgen = self.opc.get_event_generator(event, ua.ObjectIds.Server)
check_eventgenerator_BaseEvent(self, evgen)
check_event_generator_object(self, evgen, o)
def test_eventgenerator_InheritedEvent(self):
evgen = self.opc.get_event_generator(ua.ObjectIds.AuditEventType)
check_eventgenerator_SourceServer(self, evgen)
ev = evgen.event
self.assertIsNot(ev, None) # we did not receive event
self.assertIsInstance(ev, BaseEvent)
self.assertIsInstance(ev, AuditEvent)
self.assertEqual(ev.EventType, ua.NodeId(ua.ObjectIds.AuditEventType))
self.assertEqual(ev.Severity, 1)
self.assertEqual(ev.ActionTimeStamp, None)
self.assertEqual(ev.Status, False)
self.assertEqual(ev.ServerId, None)
self.assertEqual(ev.ClientAuditEntryId, None)
self.assertEqual(ev.ClientUserId, None)
def test_create_custom_event_type_ObjectId(self):
etype = self.opc.create_custom_event_type(2, 'MyEvent', ua.ObjectIds.BaseEventType, [('PropertyNum', ua.VariantType.Float), ('PropertyString', ua.VariantType.String)])
check_custom_event_type(self, etype)
def test_create_custom_event_type_NodeId(self):
etype = self.opc.create_custom_event_type(2, 'MyEvent', ua.NodeId(ua.ObjectIds.BaseEventType), [('PropertyNum', ua.VariantType.Float), ('PropertyString', ua.VariantType.String)])
check_custom_event_type(self, etype)
def test_create_custom_event_type_Node(self):
etype = self.opc.create_custom_event_type(2, 'MyEvent', opcua.Node(self.opc.iserver.isession, ua.NodeId(ua.ObjectIds.BaseEventType)), [('PropertyNum', ua.VariantType.Float), ('PropertyString', ua.VariantType.String)])
check_custom_event_type(self, etype)
def test_get_event_from_type_node_CustomEvent(self):
etype = self.opc.create_custom_event_type(2, 'MyEvent', ua.ObjectIds.BaseEventType, [('PropertyNum', ua.VariantType.Float), ('PropertyString', ua.VariantType.String)])
ev = opcua.common.events.get_event_obj_from_type_node(etype)
check_custom_event(self, ev, etype)
self.assertEqual(ev.PropertyNum, None)
self.assertEqual(ev.PropertyString, None)
def test_eventgenerator_customEvent(self):
etype = self.opc.create_custom_event_type(2, 'MyEvent', ua.ObjectIds.BaseEventType, [('PropertyNum', ua.VariantType.Float), ('PropertyString', ua.VariantType.String)])
evgen = self.opc.get_event_generator(etype, ua.ObjectIds.Server)
check_eventgenerator_CustomEvent(self, evgen, etype)
check_eventgenerator_SourceServer(self, evgen)
self.assertEqual(evgen.event.PropertyNum, None)
self.assertEqual(evgen.event.PropertyString, None)
def test_eventgenerator_double_customEvent(self):
event1 = self.opc.create_custom_event_type(3, 'MyEvent1', ua.ObjectIds.BaseEventType, [('PropertyNum', ua.VariantType.Float), ('PropertyString', ua.VariantType.String)])
event2 = self.opc.create_custom_event_type(4, 'MyEvent2', event1, [('PropertyBool', ua.VariantType.Boolean), ('PropertyInt', ua.VariantType.Int32)])
evgen = self.opc.get_event_generator(event2, ua.ObjectIds.Server)
check_eventgenerator_CustomEvent(self, evgen, event2)
check_eventgenerator_SourceServer(self, evgen)
# Properties from MyEvent1
self.assertEqual(evgen.event.PropertyNum, None)
self.assertEqual(evgen.event.PropertyString, None)
# Properties from MyEvent2
self.assertEqual(evgen.event.PropertyBool, None)
self.assertEqual(evgen.event.PropertyInt, None)
def test_eventgenerator_customEvent_MyObject(self):
objects = self.opc.get_objects_node()
o = objects.add_object(3, 'MyObject')
etype = self.opc.create_custom_event_type(2, 'MyEvent', ua.ObjectIds.BaseEventType, [('PropertyNum', ua.VariantType.Float), ('PropertyString', ua.VariantType.String)])
evgen = self.opc.get_event_generator(etype, o)
check_eventgenerator_CustomEvent(self, evgen, etype)
check_event_generator_object(self, evgen, o)
self.assertEqual(evgen.event.PropertyNum, None)
self.assertEqual(evgen.event.PropertyString, None)
if __name__ == "__main__":
# optional: setup logging
logging.basicConfig(level=logging.WARN)
#logger = logging.getLogger("opcua.address_space")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.internal_server")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.binary_server_asyncio")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.uaprocessor")
# logger.setLevel(logging.DEBUG)
# now setup our server
server = Server()
#server.disable_clock()
#server.set_endpoint("opc.tcp://localhost:4840/freeopcua/server/")
server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
server.set_server_name("FreeOpcUa Example Server")
# setup our own namespace
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
# create a new node type we can instantiate in our address space
dev = server.nodes.base_object_type.add_object_type(0, "MyDevice")
dev.add_variable(0, "sensor1", 1.0)
dev.add_property(0, "device_id", "0340")
ctrl = dev.add_object(0, "controller")
ctrl.add_property(0, "state", "Idle")
class TestCryptoConnect(unittest.TestCase):
'''
Test connectino with a server supporting crypto
'''
@classmethod
def setUpClass(self):
# start our own server
self.srv_crypto = Server()
self.uri_crypto = 'opc.tcp://localhost:%d' % port_num1
self.srv_crypto.set_endpoint(self.uri_crypto)
# load server certificate and private key. This enables endpoints
# with signing and encryption.
self.srv_crypto.load_certificate("examples/certificate-example.der")
self.srv_crypto.load_private_key("examples/private-key-example.pem")
self.srv_crypto.start()
# start a server without crypto
self.srv_no_crypto = Server()
self.uri_no_crypto = 'opc.tcp://localhost:%d' % port_num2
self.srv_no_crypto.set_endpoint(self.uri_no_crypto)
self.srv_no_crypto.start()
@classmethod
def tearDownClass(self):
# stop the server
self.srv_no_crypto.stop()
self.srv_crypto.stop()
def test_nocrypto(self):
clt = Client(self.uri_no_crypto)
clt.connect()
try:
clt.get_objects_node().get_children()
finally:
clt.disconnect()
def test_nocrypto_feil(self):
clt = Client(self.uri_no_crypto)
with self.assertRaises(ua.UaError):
clt.set_security_string("Basic256,Sign,examples/certificate-example.der,examples/private-key-example.pem")
def test_basic256(self):
clt = Client(self.uri_crypto)
try:
clt.set_security_string("Basic256,Sign,examples/certificate-example.der,examples/private-key-example.pem")
clt.connect()
self.assertTrue(clt.get_objects_node().get_children())
finally:
clt.disconnect()
def test_basic256_encrypt(self):
clt = Client(self.uri_crypto)
try:
clt.set_security_string("Basic256,SignAndEncrypt,examples/certificate-example.der,examples/private-key-example.pem")
clt.connect()
self.assertTrue(clt.get_objects_node().get_children())
finally:
clt.disconnect()
def test_basic128Rsa15(self):
clt = Client(self.uri_crypto)
try:
clt.set_security_string("Basic128Rsa15,Sign,examples/certificate-example.der,examples/private-key-example.pem")
clt.connect()
self.assertTrue(clt.get_objects_node().get_children())
finally:
clt.disconnect()
def test_basic128Rsa15_encrypt(self):
clt = Client(self.uri_crypto)
try:
clt.set_security_string("Basic128Rsa15,SignAndEncrypt,examples/certificate-example.der,examples/private-key-example.pem")
clt.connect()
self.assertTrue(clt.get_objects_node().get_children())
finally:
clt.disconnect()
def test_basic256_encrypt_success(self):
clt = Client(self.uri_crypto)
try:
clt.set_security(security_policies.SecurityPolicyBasic256,
'examples/certificate-example.der',
'examples/private-key-example.pem',
None,
ua.MessageSecurityMode.SignAndEncrypt
)
clt.connect()
self.assertTrue(clt.get_objects_node().get_children())
finally:
clt.disconnect()
def test_basic256_encrypt_feil(self):
# FIXME: how to make it feil???
clt = Client(self.uri_crypto)
with self.assertRaises(ua.UaError):
clt.set_security(security_policies.SecurityPolicyBasic256,
'examples/certificate-example.der',
'examples/private-key-example.pem',
None,
ua.MessageSecurityMode.None_
)