def __init__(self):
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")
myvar1 = myobj.add_variable(idx, "MyVariable1", 1)
myvar2 = myobj.add_variable(idx, "MyVariable2", 2)
myvar3 = myobj.add_variable(idx, "MyVariable3", 3)
myvar4 = myobj.add_variable(idx, "MyVariable4", 4)
myvar5 = myobj.add_variable(idx, "MyVariable5", 5)
myvar1.set_writable() # Set MyVariable to be writable by clients
myvar2.set_writable() # Set MyVariable to be writable by clients
myvar3.set_writable() # Set MyVariable to be writable by clients
myvar4.set_writable() # Set MyVariable to be writable by clients
myvar5.set_writable() # Set MyVariable to be writable by clients
self.server = server
class HelloServer:
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])
def __enter__(self):
self.server.start()
return self.server
def __exit__(self, exc_type, exc_val, exc_tb):
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 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 createOPCUA():
global server
server = Server()
url = "opc.tcp://10.148.6.70:4840"
server.set_endpoint(url)
name = "MOTOR_SIMULATION"
addspace = server.register_namespace(name)
node = server.get_objects_node()
Param = node.add_object(addspace, "Parameters")
Temp = Param.add_variable(addspace, "Temperature", 0)
Vibr = Param.add_variable(addspace, "Vibration", 0)
Curr = Param.add_variable(addspace, "Current", 0)
Rpm = Param.add_variable(addspace, "Rate Per Minute", 0)
Temp.set_writable()
Vibr.set_writable()
Curr.set_writable()
Rpm.set_writable()
server.start()
print("Server started at {}".format(url))
return [Temp, Vibr, Curr, Rpm]
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)
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 __init__(self, port=Opcx.DEFAULT_PORT, name='OpcxServer'):
from opcua import Server
server = Server()
server.set_server_name(name)
server.set_endpoint("opc.tcp://0.0.0.0:%d/freeopcua/server/" % port)
self.objix = server.register_namespace(Opcx.DEFAULT_URI)
self.server = 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 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")
## Two different methods definitions
# First
method_1_node = my_first_object.add_method(address_space,
"method_1_description",
odd_or_even,
[ua.VariantType.Int32],
[ua.VariantType.Boolean])
# Second
inarg_1 = ua.Argument()
inarg_1.Name = "Argument_1"
inarg_1.DataType = ua.NodeId(ua.ObjectIds.Float32)
inarg_1.ValueRank = -1
inarg_1.ArrayDimensions = []
inarg_1.Description = ua.LocalizedText("Method argument 1 description")
inarg_2 = ua.Argument()
inarg_2.Name = "Argument_2"
inarg_2.DataType = ua.NodeId(ua.ObjectIds.Float32)
inarg_2.ValueRank = -1
inarg_2.ArrayDimensions = []
inarg_2.Description = ua.LocalizedText("Method argument 2 description")
outarg = ua.Argument()
outarg.Name = "Result"
outarg.DataType = ua.NodeId(ua.ObjectIds.Float32)
outarg.ValueRank = -1
outarg.ArrayDimensions = []
outarg.Description = ua.LocalizedText("Output argument description")
method_2_node = my_first_object.add_method(address_space,
"method_2_description",
multiply, [inarg_1, inarg_2],
[outarg])
# starting!
server.start()
print("Server starting ...")
while True:
time.sleep(1)
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)
def run_OPCUA_server_start():
print("Starting OPC UA SERVER %s:%s" % (OPCUA_HOST, OPCUA_PORT))
# setup our server
server = Server()
server.set_endpoint("opc.tcp://%s:%s/freeopcua/server/" % (OPCUA_HOST, OPCUA_PORT))
# 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
imms = objects.add_object(idx, "IMMS")
imms_date = imms.add_variable(idx, "DATE", 0, varianttype=ua.VariantType.Double)
imms_date.set_writable()
imms_time = imms.add_variable(idx, "TIME", "", varianttype=ua.VariantType.String)
imms_time.set_writable()
imms_ActSimPara1 = imms.add_variable(idx, "ActSimPara1", 0, varianttype=ua.VariantType.Double)
imms_ActSimPara1.set_writable()
imms_ActSimPara2 = imms.add_variable(idx, "ActSimPara2", 0, varianttype=ua.VariantType.Double)
imms_ActSimPara2.set_writable()
imms_ActCntCyc = imms.add_variable(idx, "ActCntCyc", 0, varianttype=ua.VariantType.Double)
imms_ActCntCyc.set_writable()
imms_ActCntPrt = imms.add_variable(idx, "ActCntPrt", 0, varianttype=ua.VariantType.Double)
imms_ActCntPrt.set_writable()
imms_ActStsMach = imms.add_variable(idx, "ActStsMach", "", varianttype=ua.VariantType.String)
imms_ActStsMach.set_writable()
imms_ActTimCyc = imms.add_variable(idx, "ActTimCyc", 5, varianttype=ua.VariantType.Double)
imms_ActTimCyc.set_writable()
imms_SetCntMld = imms.add_variable(idx, "SetCntMld", 0, varianttype=ua.VariantType.Double)
imms_SetCntMld.set_writable()
imms_SetCntPrt = imms.add_variable(idx, "SetCntPrt", 0, varianttype=ua.VariantType.Double)
imms_SetCntPrt.set_writable()
imms_SetTimCyc = imms.add_variable(idx, "SetTimCyc", 0, varianttype=ua.VariantType.Double)
imms_SetTimCyc.set_writable()
# starting!
server.start()
def test_port_in_use(self):
server1 = Server()
server1.set_endpoint('opc.tcp://localhost:{0:d}'.format(port_num + 1))
server1.start()
server2 = Server()
server2.set_endpoint('opc.tcp://localhost:{0:d}'.format(port_num + 1))
try:
server2.start()
except Exception:
pass
server1.stop()
server2.stop()
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")
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()
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)
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()
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)
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 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
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()
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(), 1)
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])
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")
class AdminTestClient(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)
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(Exception):
self.clt.bclient._send_request(request)
def test_objects_anonymous(self):
objects = self.ro_clt.get_objects_node()
with self.assertRaises(Exception):
objects.set_attribute(ua.AttributeIds.WriteMask, ua.DataValue(999))
with self.assertRaises(Exception):
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(Exception):
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(Exception):
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(Exception):
v_ro.set_value(9)
self.assertEqual(v_ro.get_value(), 2)
# 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_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, "myfolder")
myobj = objects.add_object(idx, "NewObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myarrayvar = myobj.add_variable(idx, "myarrayvar", [6.7, 7.9])
myprop = myobj.add_property(idx, "myproperty", "I am a property")
def run(nodejson, endpoint, namespace, description):
# now setup our server
server = Server()
#server.set_endpoint("opc.tcp://localhost:4840/freeopcua/server/")
server.set_endpoint(endpoint)
server.set_server_name(description)
# setup our own namespace
uri = namespace
idx = server.register_namespace(uri)
# get Objects node, this is where we should put our custom stuff
objects = server.get_objects_node()
variables = {}
nodeId = 5
def add_variable(f, vals, nodeId):
for x in vals:
k = x if isinstance(x, str) or isinstance(x, unicode) else x.keys()[0]
#v = f.add_variable("ns=6;i=600%d" % nodeId, k, ua.Variant([], ua.VariantType.Float))
v = f.add_variable("ns=6;i=600%d" % nodeId, x, ua.Variant([], ua.VariantType.Float))
# nodeid, browsename, value, [variant type]
#v = f.add_variable("ns=6;s=%s" % x, x, ua.Variant([], ua.VariantType.Float))
v.set_writable()
variables[k] = v
nodeId = nodeId+1
return nodeId
def add_folder(p, pid, val, nodeId):
for n, v in val.items():
mf = p.add_folder("ns=%d;i=%d00%d" % (pid, pid, nodeId), n)
#mf = p.add_folder("ns=%d;s=%s" % (pid, n), n)
if isinstance(v, list) or isinstance(v, tuple):
nodeId = add_variable(mf, v, nodeId+1)
else:
nodeId = add_folder(mf, pid+1, v, nodeId+1)
return nodeId
# populating our address space
add_folder(objects, 5, nodejson, nodeId)
'''
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myvar.set_writable() # Set MyVariable to be writable by clients
myarrayvar = myobj.add_variable(idx, "myarrayvar", [6.7, 7.9])
myarrayvar = myobj.add_variable(idx, "myStronglytTypedVariable", ua.Variant([], ua.VariantType.UInt32))
myprop = myobj.add_property(idx, "myproperty", "I am a property")
mymethod = myobj.add_method(idx, "mymethod", func, [ua.VariantType.Int64], [ua.VariantType.Boolean])
inargx = ua.Argument()
inargx.Name = "x"
inargx.DataType = ua.NodeId(ua.ObjectIds.Int64)
inargx.ValueRank = -1
inargx.ArrayDimensions = []
inargx.Description = ua.LocalizedText("First number x")
inargy = ua.Argument()
inargy.Name = "y"
inargy.DataType = ua.NodeId(ua.ObjectIds.Int64)
inargy.ValueRank = -1
inargy.ArrayDimensions = []
inargy.Description = ua.LocalizedText("Second number y")
outarg = ua.Argument()
outarg.Name = "Result"
outarg.DataType = ua.NodeId(ua.ObjectIds.Int64)
outarg.ValueRank = -1
outarg.ArrayDimensions = []
outarg.Description = ua.LocalizedText("Multiplication result")
multiply_node = myobj.add_method(idx, "multiply", multiply, [inargx, inargy], [outarg])
'''
# starting!
server.start()
#print("Available loggers are: ", logging.Logger.manager.loggerDict.keys())
return server, variables
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)
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)
class OPCServer(object):
def __init__(self, settings):
super(OPCServer, self).__init__()
server_settings = settings.get("server")
objects = settings.get("objects")
self._endpoint = server_settings["endpoint"]
self._name = server_settings["name"]
self._namespace = server_settings["namespace"]
self._init_server()
for o in objects:
self._add_object(o["name"])
for variable, value in o["ro_variables"].items():
self._add_variable(o["name"], variable, value)
for variable, value in o["rw_variables"].items():
self._add_variable(o["name"], variable, value, True)
def start(self):
if self._server:
self._server.start()
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 stop(self):
self._server.stop()
def _add_object(self, object_name):
self._objects[object_name] = { 'object': self._objects_node.add_object(self._index, object_name), 'variables' : {}}
def _add_variable(self, object_name, variable_name, value, writable=False):
obj = self._objects.get(object_name, None)
if obj.get('object', None):
var = self._objects_node.add_variable(self._index, variable_name, str(value))
obj['variables'][variable_name] = var
if writable:
var.set_writable()
return True
return False
def _get_variable(self, object_name, variable_name):
obj = self._objects.get(object_name)
if obj.get('object', None):
var = obj['variables'].get(variable_name, None)
return var
return None
def set_value(self, object_name, variable_name, value):
var = self._get_variable(object_name, variable_name)
if var:
var.set_value(str(value))
return True
return False
def get_value(self, object_name, variable_name):
var = self._get_variable(object_name, variable_name)
if var:
return var.get_value()
return None
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_
)
class TestAttrsWidget(unittest.TestCase):
def setUp(self):
self.server = Server()
self.server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
self.server.start()
self.widget = AttrsWidget(QTreeView())
def tearDown(self):
self.server.stop()
def find_item(self, text):
idxlist = self.widget.model.match(self.widget.model.index(0, 0), Qt.DisplayRole, text, 1, Qt.MatchExactly | Qt.MatchRecursive)
idx = idxlist[0]
return idx
def modify_item(self, text, val, match_to_use=0):
"""
modify the current item and set its displayed value to 'val'
"""
idxlist = self.widget.model.match(self.widget.model.index(0, 0), Qt.DisplayRole, text, match_to_use + 1, Qt.MatchExactly | Qt.MatchRecursive)
if not idxlist:
raise RuntimeError("Item with text '{}' not found".format(text))
idx = idxlist[match_to_use]
self.widget.view.setCurrentIndex(idx)
idx = idx.sibling(idx.row(), 1)
self.widget.view.edit(idx)
editor = self.widget.view.focusWidget()
if not editor:
print(app.focusWidget())
print("NO EDITOR WIDGET")
#QTest.keyClick(self.widget.view, Qt.Key_Return)
from IPython import embed
embed()
raise RuntimeError("Could not get editor widget!, it does not have the focus")
if hasattr(editor, "_current_node"):
editor._current_node = val
elif hasattr(editor, "setCurrentText"):
editor.setCurrentText(val)
else:
editor.setText(val)
self.widget.view.commitData(editor)
self.widget.view.closeEditor(editor, QAbstractItemDelegate.NoHint)
self.widget.view.reset()
def modify_value(self, val):
self.modify_item("Value", val, 1)
def test_display_objects_node(self):
objects = self.server.nodes.objects
self.widget.show_attrs(objects)
self.modify_item("BrowseName", "5:titi")
self.assertEqual(objects.get_browse_name().to_string(), "5:titi")
self.modify_item("BrowseName", "0:Objects") # restore states for other tests
def test_display_var_double(self):
objects = self.server.nodes.objects
myvar = objects.add_variable(1, "myvar1", 9.99, ua.VariantType.Double)
self.widget.show_attrs(myvar)
self.modify_value("8.45")
self.assertEqual(myvar.get_value(), 8.45)
def test_display_var_bytes(self):
objects = self.server.nodes.objects
myvar = objects.add_variable(1, "myvar_bytes", b"jkl", ua.VariantType.ByteString)
self.widget.show_attrs(myvar)
self.modify_value("titi")
self.assertEqual(myvar.get_value(), b"titi")
def test_change_data_type(self):
objects = self.server.nodes.objects
myvar = objects.add_variable(1, "myvar1", 9.99, ua.VariantType.Double)
self.widget.show_attrs(myvar)
dtype = myvar.get_data_type()
self.assertEqual(dtype, ua.NodeId(ua.ObjectIds.Double))
new_dtype = ua.NodeId(ua.ObjectIds.String)
self.modify_item("DataType", self.server.get_node(new_dtype))
self.assertEqual(myvar.get_data_type(), new_dtype)
# now try to write a value which is a string
self.modify_value("mystring")
self.assertEqual(myvar.get_value(), "mystring")
def test_change_value_rank(self): # need to find a way to modify combo box with QTest
objects = self.server.nodes.objects
myvar = objects.add_variable(1, "myvar1", 9.99, ua.VariantType.Double)
self.widget.show_attrs(myvar)
rank = myvar.get_value_rank()
self.modify_item("ValueRank", "ThreeDimensions")
self.assertEqual(myvar.get_value_rank(), ua.ValueRank.ThreeDimensions)
# 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")
# populating our address space
handler.setFormatter(formatter)
logger.addHandler(handler)
sys.stdout = MyLogger(logger, logging.INFO)
if __name__ == "__main__":
#Creamos una instancia del servidor OPC UA
server = Server()
# Establecemos la comunicación de nuestro servidor opc ua
# load server certificate and private key. This enables endpoints
#Cargamos el certificado del servidor y la clave privada
#esto activa la comunicación con firma y cifrado.
if len(sys.argv) == 2:
server.set_endpoint("opc.tcp://%s" % sys.argv[1] )
server.load_certificate("certificate-example.der")
server.load_private_key("private-key-example.pem")
elif len(sys.argv) == 3:
server.set_endpoint("opc.tcp://%s" % sys.argv[1] )
server.load_certificate("%s/certificate-example.der" % sys.argv[2])
server.load_private_key("%s/private-key-example.pem" % sys.argv[2])
else:
a = len(sys.argv)
print ("Numero de argumentos inexperado: %s" %a)
print "opcua_server.py ip:puerto (rutacertificado)"
sys.exit(1)
# Declaración del espacio de nombres (no necesario)
uri = "SERVIDOR OPC-UA - ARDUINO:FreeOpcUa:python-opcua"
idx = server.register_namespace(uri)
