def uals():
parser = argparse.ArgumentParser(description="Browse OPC-UA node and print result")
add_common_args(parser)
parser.add_argument("-l",
dest="long_format",
const=3,
nargs="?",
type=int,
help="use a long listing format")
parser.add_argument("-d",
"--depth",
default=1,
type=int,
help="Browse depth")
args = parse_args(parser)
if args.long_format is None:
args.long_format = 1
client = Client(args.url, timeout=args.timeout)
_configure_client_with_args(client, args)
client.connect()
try:
node = get_node(client, args)
print("Browsing node {0} at {1}\n".format(node, args.url))
if args.long_format == 0:
_lsprint_0(node, args.depth - 1)
elif args.long_format == 1:
_lsprint_1(node, args.depth - 1)
else:
_lsprint_long(node, args.depth - 1)
finally:
client.disconnect()
sys.exit(0)
print(args)
def uaread():
parser = argparse.ArgumentParser(description="Read attribute of a node, per default reads value of a node")
add_common_args(parser)
parser.add_argument("-a",
"--attribute",
dest="attribute",
type=int,
default=ua.AttributeIds.Value,
help="Set attribute to read")
parser.add_argument("-t",
"--datatype",
dest="datatype",
default="python",
choices=['python', 'variant', 'datavalue'],
help="Data type to return")
args = parse_args(parser, requirenodeid=True)
client = Client(args.url, timeout=args.timeout)
client.connect()
try:
node = get_node(client, args)
attr = node.get_attribute(args.attribute)
if args.datatype == "python":
print(attr.Value.Value)
elif args.datatype == "variant":
print(attr.Value)
else:
print(attr)
finally:
client.disconnect()
sys.exit(0)
print(args)
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 wrapper(self):
try:
client = Client(URL)
client.connect()
func(self, client)
finally:
client.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_
)
def get_endpoints(uri):
client = Client(uri, timeout=2)
client.connect_and_get_server_endpoints()
edps = client.connect_and_get_server_endpoints()
for i, ep in enumerate(edps, start=1):
logger.info('Endpoint %s:', i)
for (n, v) in endpoint_to_strings(ep):
logger.info(' %s: %s', n, v)
logger.info('')
return edps
def opcua_init(request):
client = Client(
request.get('url', 'opc.tcp://localhost:4841'),
timeout=request.get('timeout', 10)
)
client.set_security_string(request.get('security', ''))
client.connect()
return client
class HelloClient:
def __init__(self, endpoint):
self.client = Client(endpoint)
def __enter__(self):
self.client.connect()
return self.client
def __exit__(self, exc_type, exc_val, exc_tb):
self.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()
def test_find_servers2(self):
client = Client(self.discovery.endpoint.geturl())
client.connect()
try:
servers = client.find_servers()
# Use 2 different RegistrationServices, as it does not allow duplicate registrations.
with RegistrationService() as regService1, RegistrationService() as regService2:
# Register to server with uri1
new_app_uri1 = "urn:freeopcua:python:server:test_discovery1"
self.srv.application_uri = new_app_uri1
regService1.register_to_discovery(self.srv, self.discovery.endpoint.geturl(), period=0)
# Register to server with uri2
new_app_uri2 = "urn:freeopcua:python:test_discovery2"
self.srv.application_uri = new_app_uri2
regService2.register_to_discovery(self.srv, self.discovery.endpoint.geturl(), period=0)
# Check for 2 registrations
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 filter
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 filter
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()
def uasubscribe():
parser = argparse.ArgumentParser(description="Subscribe to a node and print results")
add_common_args(parser)
parser.add_argument("-t",
"--eventtype",
dest="eventtype",
default="datachange",
choices=['datachange', 'event'],
help="Event type to subscribe to")
args = parse_args(parser, requirenodeid=False)
if args.eventtype == "datachange":
_require_nodeid(parser, args)
else:
# FIXME: this is broken, someone may have written i=84 on purpose
if args.nodeid == "i=84" and args.path == "":
args.nodeid = "i=2253"
client = Client(args.url, timeout=args.timeout)
client.set_security_string(args.security)
client.connect()
try:
node = get_node(client, args)
handler = SubHandler()
sub = client.create_subscription(500, handler)
if args.eventtype == "datachange":
sub.subscribe_data_change(node)
else:
sub.subscribe_events(node)
embed()
finally:
client.disconnect()
sys.exit(0)
print(args)
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(self):
clt = Client(self.uri_crypto)
try:
clt.set_security_string("Basic256,Sign,examples/example-certificate.der,examples/example-private-key.pem")
clt.connect()
self.assertTrue(clt.get_objects_node().get_children())
finally:
clt.disconnect()
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 import_nodes(self, server_url="opc.tcp://localhost:16664"):
from opcua.crypto import security_policies
import types
from opcua.ua.uaprotocol_hand import CryptographyNone
self.client = Client(server_url)
# Fix symmetric_key_size (not 0) of securityPolicy
sec_policy = security_policies.SecurityPolicy()
sec_policy.symmetric_key_size = 8
self.client.security_policy = sec_policy
# Fix signature method of CryptographyNone
def signature(self, data):
return None
fixed_signature = types.MethodType(signature, CryptographyNone)
self.client.security_policy.asymmetric_cryptography.signature = fixed_signature
try:
self.client.connect()
except Exception as e:
self.logger.error("No connection established", e)
self.logger.error(e)
self.logger.error("Exiting ...")
sys.exit()
self.logger.info("Client connected to %s" % server_url)
for ns in self.client.get_namespace_array():
self.namespaces[self.client.get_namespace_index(ns)] = ns
root = self.client.get_root_node()
self.logger.info("Starting to collect nodes. This may take some time ...")
self.iterater_over_child_nodes(root)
self.logger.info("All nodes collected")
def opc_snd_plc():
url = "opc.tcp://192.168.10.1:4840"
rev_nodeid = 'ns=3;s="OPCUA_REV"."srm_mqtt_sub"'
rev_flg_nodeid = 'ns=3;s="OPCUA_REV"."srm_mqtt_sub_flg"'
with Client(url=url) as client:
# 发送到PLC节点ID
rev_srm_mqtt_sub = client.get_node(rev_nodeid)
rev_srm_mqtt_sub_flg = client.get_node(rev_flg_nodeid)
# 初始化同步PLC的数据
# 发送给PLC
rev_srm_mqtt_sub_flg_value = rev_srm_mqtt_sub_flg.get_value()
while True:
# 发送PLC消息
rev_srm_mqtt_sub_value = q_opc.get()
rev_srm_mqtt_sub.set_value(
ua.DataValue(
ua.Variant(rev_srm_mqtt_sub_value, ua.VariantType.String)))
if rev_srm_mqtt_sub_flg_value >= 32767:
rev_srm_mqtt_sub_flg_value = -32768
else:
rev_srm_mqtt_sub_flg_value = rev_srm_mqtt_sub_flg_value + 1
rev_srm_mqtt_sub_flg.set_value(
ua.DataValue(
ua.Variant(rev_srm_mqtt_sub_flg_value,
ua.VariantType.Int16)))
q_opc.task_done()
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()
def __init__(self,
name,
endPointAddress,
nameSpaceUri=None,
browseRootNodeIdentifier=None):
# ---------- Setup -----------
self.name = name
self.logger = logging.getLogger(self.name)
self.endPointAddress = endPointAddress
self.nameSpaceUri = nameSpaceUri
self.nameSpaceIndex = None
self.browseRootNodeIdentifier = browseRootNodeIdentifier
self.rootNodeId = None
self.client = Client(self.endPointAddress, timeout=2)
self.sub = None
self.subscriptions = {}
def main():
config = configparser.ConfigParser()
config.read(os.path.join(os.path.dirname(__file__), 'wtc.cfg'))
opcnodes = []
with Client("opc.tcp://10.0.146.94:40843/freeopcua/server/") as client:
client.connect()
wtc = client.get_objects_node().get_child("0:WTC")
wtc_items = wtc.get_children()
qual = 0
for item in wtc_items:
opcnodes.append(
wtc.get_child(
item.get_browse_name().to_string()).get_child("0:state"))
if item.get_browse_name().to_string() == "0:CPU27/AS_EGRESS_REP":
val = item.get_child("0:sample_quality")
opcnodes.append(val)
qual = val
data = json.dumps(qual.get_value())
print("HTTP/1.1 200 Ok")
print("Content-type: application/json")
print("Content-length: " + str(len(data)))
print()
print(data)
exit(0)
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()
def connect(self, opc_name, init_status): self.client = Client(self.url) CRED = '\33[31m' CGREEN = '\33[32m' CEND = '\033[0m' try: self.client.connect() except socket.error: connect_status = False print(opc_name + CRED + " disconnected" + CEND) time.sleep(1) else: if init_status: print(opc_name + CGREEN + " connected" + CEND) connect_status = True return connect_status
def start_server_and_client(cls):
cls.srv = Server()
cls.srv.set_endpoint('opc.tcp://localhost:{0:d}'.format(port_num1))
cls.srv.start()
cls.clt = Client('opc.tcp://localhost:{0:d}'.format(port_num1))
cls.clt.connect()
def connect(self) -> bool:
""" Connect driver.
: returns: True if connection stablished False if not
"""
try:
self._connection = Client(self.url)
self._connection.connect()
except Exception as e:
self.sendDebugInfo(f'Error connecting to server at {self.url}.')
return False
self.handler = SubHandler()
self.subscription = self._connection.create_subscription(self.rpi, self.handler)
return True
def opc_rev_plc():
url = "opc.tcp://192.168.10.1:4840"
snd_nodeid = 'ns=3;s="OPCUA_SND"."srm_mqtt_pub"'
snd_flg_nodeid = 'ns=3;s="OPCUA_SND"."srm_mqtt_pub_flg"'
with Client(url=url) as client:
# 接收自PLC节点ID
snd_srm_mqtt_pub = client.get_node(snd_nodeid)
snd_srm_mqtt_pub_flg = client.get_node(snd_flg_nodeid)
# 初始化同步PLC的数据
# 接收自PLC
# snd_srm_mqtt_pub_value = snd_srm_mqtt_pub.get_value()
snd_srm_mqtt_pub_flg_value = snd_srm_mqtt_pub_flg.get_value()
snd_srm_mqtt_pub_flg_value_old = snd_srm_mqtt_pub_flg_value
while True:
time.sleep(0.1)
# 接收PLC消息
snd_srm_mqtt_pub_value = snd_srm_mqtt_pub.get_value()
snd_srm_mqtt_pub_flg_value = snd_srm_mqtt_pub_flg.get_value()
if snd_srm_mqtt_pub_value == '':
pass
elif snd_srm_mqtt_pub_flg_value != snd_srm_mqtt_pub_flg_value_old:
print("PLC: " + snd_srm_mqtt_pub_value)
if q_speak.empty():
q_speak.put(snd_srm_mqtt_pub_value)
else:
pass
snd_srm_mqtt_pub_flg_value_old = snd_srm_mqtt_pub_flg_value
def test_find_servers2(self):
client = Client(self.discovery.endpoint.geturl())
client.connect()
try:
servers = client.find_servers()
# Use 2 different RegistrationServices, as it does not allow duplicate registrations.
with RegistrationService() as regService1, RegistrationService(
) as regService2:
# Register to server with uri1
new_app_uri1 = "urn:freeopcua:python:server:test_discovery1"
self.srv.set_application_uri(new_app_uri1)
regService1.register_to_discovery(
self.srv, self.discovery.endpoint.geturl(), period=0)
# Register to server with uri2
new_app_uri2 = "urn:freeopcua:python:test_discovery2"
self.srv.set_application_uri(new_app_uri2)
regService2.register_to_discovery(
self.srv, self.discovery.endpoint.geturl(), period=0)
# Check for 2 registrations
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 filter
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 filter
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()
def test_basic256sha56_encrypt_success(self):
clt = Client(self.uri_crypto)
try:
clt.set_security(security_policies.SecurityPolicyBasic256Sha256,
'../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()
class OPCClient:
def __init__(self, url="opc.tcp://127.0.0.1:48402/freeopcua/server/"):
self.url = url
self.client = Client(self.url)
def get_value(self, count):
num = 2
list_value = list()
while num < count + 2:
list_value.append(
self.client.get_node(f'ns=2; i={num}').get_value())
num += 1
return list_value
def run(self):
self.client.connect()
print(f'Client connected to {self.url}')
def connect(self, uri):
self.disconnect()
print("Connecting to ", uri)
self.client = Client(uri)
self.client.connect()
self._connected = True
print("Connected, root is: ", self.client.get_root_node())
print(self.get_root_attrs())
def login(self):
# Init local registers
for key, val in self.variables.items():
self.registers[key] = {}
self.registers[key]["min"] = None
self.registers[key]["max"] = None
self.registers[key]["register_timestamp"] = None
# Create session
try:
self.client = Client(self.opc_url)
self.client.connect()
except Exception as e:
raise Exception(
"OPC/UA server is not available. Please check connectivity by cmd tools"
)
logging.info("Client connected to a OPC/UA server" + str(self.opc_url))
def connect(self, uri):
self.disconnect()
logger.info("Connecting to %s with parameters %s, %s, %s, %s", uri,
self.security_mode, self.security_policy,
self.certificate_path, self.private_key_path)
self.client = Client(uri)
if self.security_mode is not None and self.security_policy is not None:
self.client.set_security(getattr(
crypto.security_policies,
'SecurityPolicy' + self.security_policy),
self.certificate_path,
self.private_key_path,
mode=getattr(ua.MessageSecurityMode,
self.security_mode))
self.client.connect()
self._connected = True
self.save_security_settings(uri)
def uadiscover():
parser = argparse.ArgumentParser(
description=
"Performs OPC UA discovery and prints information on servers and endpoints."
)
add_minimum_args(parser)
parser.add_argument(
"-n",
"--network",
action="store_true",
help="Also send a FindServersOnNetwork request to server")
#parser.add_argument("-s",
#"--servers",
#action="store_false",
#help="send a FindServers request to server")
#parser.add_argument("-e",
#"--endpoints",
#action="store_false",
#help="send a GetEndpoints request to server")
args = parse_args(parser)
client = Client(args.url, timeout=args.timeout)
if args.network:
print("Performing discovery at {0}\n".format(args.url))
for i, server in enumerate(
client.connect_and_find_servers_on_network(), start=1):
print('Server {0}:'.format(i))
#for (n, v) in application_to_strings(server):
#print(' {}: {}'.format(n, v))
print('')
print("Performing discovery at {0}\n".format(args.url))
for i, server in enumerate(client.connect_and_find_servers(), start=1):
print('Server {0}:'.format(i))
for (n, v) in application_to_strings(server):
print(' {0}: {1}'.format(n, v))
print('')
for i, ep in enumerate(client.connect_and_get_server_endpoints(), start=1):
print('Endpoint {0}:'.format(i))
for (n, v) in endpoint_to_strings(ep):
print(' {0}: {1}'.format(n, v))
print('')
sys.exit(0)
def start_server(self, endpoint):
self._server = UAServer()
self._server.endpoint = 48400 # enpoint not supported yet
#self._server.endpoint = endpoint
self._server.start()
#self._server.set_server_name("OpcUa Modeler Server")
time.sleep(0.2)
self._client = Client(endpoint)
self._client.connect()
self.nodes = self._client.nodes
self.get_node = self._client.get_node
self.get_namespace_array = self._client.get_namespace_array
# now remove freeopcua namespace, not necessary when modeling and
# ensures correct idx for exported nodesets
ns_node = self._client.get_node(ua.NodeId(ua.ObjectIds.Server_NamespaceArray))
nss = ns_node.get_value()
def setUpClass(cls):
# start our own server
cls.srv = Server()
cls.srv.set_endpoint('opc.tcp://127.0.0.1:{0:d}'.format(port_num1))
add_server_methods(cls.srv)
add_server_custom_enum_struct(cls.srv)
cls.srv.start()
# start admin client
# long timeout since travis (automated testing) can be really slow
cls.clt = Client('opc.tcp://[email protected]:{0:d}'.format(port_num1), timeout=10)
cls.clt.connect()
cls.opc = cls.clt
# start anonymous client
cls.ro_clt = Client('opc.tcp://127.0.0.1:{0:d}'.format(port_num1))
cls.ro_clt.connect()
def uageneratestructs():
parser = argparse.ArgumentParser(
description=
"Generate a Python module from the xml structure definition (.bsd)")
add_common_args(parser, require_node=True)
parser.add_argument(
"-o",
"--output",
dest="output_path",
required=True,
type=str,
default=None,
help="The python file to be generated.",
)
args = parse_args(parser, requirenodeid=True)
client = Client(args.url, timeout=args.timeout)
_configure_client_with_args(client, args)
client.connect()
try:
node = get_node(client, args)
generators, _ = client.load_type_definitions([node])
generators[0].save_to_file(args.output_path, True)
finally:
client.disconnect()
sys.exit(0)
def uahistoryread():
parser = argparse.ArgumentParser(description="Read history of a node")
add_common_args(parser)
parser.add_argument(
"--starttime", default="", help="Start time, formatted as YYYY-MM-DD [HH:MM[:SS]]. Default: current time"
)
parser.add_argument(
"--endtime", default="", help="End time, formatted as YYYY-MM-DD [HH:MM[:SS]]. Default: current time"
)
args = parse_args(parser, requirenodeid=True)
client = Client(args.url, timeout=args.timeout)
client.set_security_string(args.security)
client.connect()
try:
node = get_node(client, args)
starttime = str_to_datetime(args.starttime)
endtime = str_to_datetime(args.endtime)
print(
"Reading raw history of node {} at {}; start at {}, end at {}\n".format(node, args.url, starttime, endtime)
)
print_history(node.read_raw_history(starttime, endtime))
finally:
client.disconnect()
sys.exit(0)
def getSubModel(endpointStr, subModel_NodeId):
client = Client(endpointStr)
try:
client.connect()
# nsarray = client.get_node(ua.NodeId(2255, 0))
# nsList = nsarray.get_value()
# i=-1
# for entry in nsList:
# i = i + 1
# if entry == "http://acplt.org/openaas/":
# nsopenaas_subModelType = i
#
# break
# if i!= -1:
# print("Looking for AAS at entry point %s,%s" % (subModel_NodeId))
path = client.get_node(subModel_NodeId)
print("path is %s" % path)
subModelInst = subModel.fromOPCUANodes(node=path)
for pvsContainer in subModelInst.PropertyValueStatementContainers:
print(pvsContainer.Name)
finally:
client.disconnect()
return subModel
def run():
configs = get_configs()
patterns = configs["measures"].split(":")
tout = configs["connection_timeout"].strip()
timeout = 1 if len(tout) <= 0 else int(tout)
client = Client(configs["connection"], timeout=timeout)
try:
client.connect()
measures = []
root = client.get_root_node()
collect_measures(measures, patterns, root)
for x in root.get_children():
print x.get_browse_name().Name
for m in measures:
print m
time.sleep(30)
except Exception as ex:
print ex
finally:
client.disconnect()
def start_loop(self):
interrupted = False
while not interrupted:
client_pixtend_server = None
try:
client_pixtend_server = Client(CLIENT_PIXTEND_SERVER)
client_pixtend_server.connect()
self.root_pixtend = client_pixtend_server.get_root_node()
logger.info("Started PiXtend loop")
while True:
# upsert_panda_state()
self.fetch_conbelt_state()
self.fetch_conbelt_dist()
# self.fetch_light_state() #TODO doesn't work right now
# self.fetch_belt_state() #TODO what is that metric?
time.sleep(INTERVAL)
except KeyboardInterrupt:
logger.info("KeyboardInterrupt, gracefully closing")
if client_pixtend_server:
client_pixtend_server.disconnect()
pr_client.disconnect()
interrupted = True
except Exception as e:
logger.warning(
"Exception PiXtend loop, Reconnecting in 60 seconds: {}".
format(e))
time.sleep(60)
def main_c():
# url = "opc.tcp://127.0.0.1:12345/"
# # url = "opc.tcp://127.0.0.1:12346/test"
# c = Client(url)
# try:
# c.connect()
# root = c.get_root_node()
# print("\r\nBrower:")
# brower_child2(root.get_child(["0:Objects"]), -1, ["Server"])
# except Exception as e:
# print("Client Exception:", e)
# finally:
# c.disconnect()
url = "opc.tcp://127.0.0.1:12345/"
# url = "opc.tcp://127.0.0.1:12346/test"
c = Client(url)
try:
c.connect()
root = c.get_root_node()
print("\r\nBrower:")
brower_child2(root.get_child(["0:Objects"]), -1, ["Server"])
except Exception as e:
print("Client Exception:", e)
finally:
c.disconnect()
def test_nocrypto(self):
clt = Client(self.uri_no_crypto)
clt.connect()
try:
clt.get_objects_node().get_children()
finally:
clt.disconnect()
def __init__(self, config_file='./start.cfg'):
""" Constructor for create object
"""
# ---------------------------------------------------------------------
# File parameters:
# ---------------------------------------------------------------------
# Open config file:
self._config_file = config_file
config = ConfigParser.ConfigParser()
config.read([self._config_file])
# A. Telegram:
self._telegram_token = config.get(u'Telegram', u'token')
self._telegram_group = config.get(u'Telegram', u'group')
# B. Command
self._node_command = {
'alarm_mask': config.get(u'command', u'alarm_mask'),
'version_check': config.get(u'command', u'version_check'),
}
# C. Alarms
self._alarms_file = config.get(u'alarm', u'file')
self._load_alarms()
# D. Robot:
self._robot_name = config.get(u'robot', u'name')
self._robot_address = config.get(u'robot', u'address')
print(u'Read config file %s for Robot: %s' % (
self._robot_name, self._config_file))
try:
self._robot_port = config.get(u'robot', u'port')
except:
self._robot_port = 4840
self._uri = u'opc.tcp://%s:%s' % (
self._robot_address, self._robot_port)
# Create and connect as client:
self._client = Client(self._uri)
try:
self._client.connect()
except:
raise self.RobotConnectionError(self)
def test_get_endpointr(self):
client = Client("opc.tcp://" + os.environ['TEST_IP'] + ":" +
os.environ['TEST_PORT'])
client.connect()
endpoints = client.get_endpoints()
print(endpoints)
client.disconnect()
def uasubscribe():
parser = argparse.ArgumentParser(description="Subscribe to a node and print results")
add_common_args(parser)
parser.add_argument("-t",
"--eventtype",
dest="eventtype",
default="datachange",
choices=['datachange', 'event'],
help="Event type to subscribe to")
args = parse_args(parser, requirenodeid=False)
if args.eventtype == "datachange":
_require_nodeid(parser, args)
else:
# FIXME: this is broken, someone may have written i=84 on purpose
if args.nodeid == "i=84" and args.path == "":
args.nodeid = "i=2253"
client = Client(args.url, timeout=args.timeout, security_policy=args.security)
client.connect()
try:
node = get_node(client, args)
handler = SubHandler()
sub = client.create_subscription(500, handler)
if args.eventtype == "datachange":
sub.subscribe_data_change(node)
else:
sub.subscribe_events(node)
embed()
finally:
client.disconnect()
sys.exit(0)
print(args)
def cambiar_valor(server,nodo,tiemp,TFD,TFRS,RGTFD,RGTFRS,RGRS,RT,SP,EC,EE,logger):
client = Client(server)
try:
client.connect()#conecta el servidor
var=client.get_node("ns=1;s="+nodo)#se obtiene el primer nodo
variable2=var.get_children()
tamano=np.size(variable2)
datetime_object = datetime.strptime(tiemp, '%d/%m/%Y %H:%M:%S')
if tamano>0:
variable2[0].set_value(datetime_object)
variable2[1].set_value(TFD)
variable2[2].set_value(TFRS)
variable2[3].set_value(RGTFD)
variable2[4].set_value(RGTFRS)
variable2[5].set_value(RGRS)
variable2[6].set_value(RT)
variable2[7].set_value(SP)
variable2[8].set_value(EC)
variable2[9].set_value(EE)
else:
logger.warning("No se encuentra el nodo en el servidor opc")
client.disconnect()
except:
logger.error("No se puede conectar con el servidor opc")
def cambiar_valor2(server,nodo,avg_fv,median_fv,std_fv,moda_fv,perc50_fv,mom2_fv,mom3_fv,mom4_fv,skew1_fv,skew2_fv,skew3_fv,kurt_fv,logger):
client = Client(server)
try:
client.connect()#conecta el servidor
var=client.get_node("ns=1;s="+nodo)#se obtiene el primer nodo
variable2=var.get_children()
tamano=np.size(variable2)
#datetime_object = datetime.strptime(tiemp, '%d/%m/%Y %H:%M:%S')
if tamano>0:
variable2[10].set_value(avg_fv)
variable2[11].set_value(median_fv)
variable2[12].set_value(std_fv)
variable2[13].set_value(moda_fv)
variable2[14].set_value(perc50_fv)
variable2[15].set_value(mom2_fv)
variable2[16].set_value(mom3_fv)
variable2[17].set_value(mom4_fv)
variable2[18].set_value(skew1_fv)
variable2[19].set_value(skew2_fv)
variable2[20].set_value(skew3_fv)
variable2[21].set_value(kurt_fv)
else:
logger.warning("No se encuentra el nodo en el servidor opc")
client.disconnect()
except:
logger.error("No se puede conectar con el servidor opc")
def getSubModel(endpointStr, subModel_NodeId):
client = Client(endpointStr)
subModel = None
try:
client.connect()
# nsarray = client.get_node(ua.NodeId(2255, 0))
# nsList = nsarray.get_value()
# i=-1
# for entry in nsList:
# i = i + 1
# if entry == "http://acplt.org/openaas/":
# nsopenaas_subModelType = i
#
# break
# if i!= -1:
# print("Looking for AAS at entry point %s,%s" % (subModel_NodeId))
path = client.get_node(subModel_NodeId)
print("path is %s" % path)
print("1")
subModelInst = subModel.fromOPCUANodes(
path) #in line 259, classmethod of 'subModel' exists
print("2") #no print out of "2" during tests
for statement in subModelInst.statements:
print(statement.Name)
finally:
client.disconnect()
return subModel
def uasubscribe():
parser = argparse.ArgumentParser(description="Subscribe to a node and print results")
add_common_args(parser)
parser.add_argument("-t",
"--eventtype",
dest="eventtype",
default="datachange",
choices=['datachange', 'event'],
help="Event type to subscribe to")
args = parser.parse_args()
if args.nodeid == "i=84" and args.path == "":
parser.print_usage()
print("uaread: error: The NodeId or BrowsePath of a variable is required")
sys.exit(1)
logging.basicConfig(format="%(levelname)s: %(message)s", level=getattr(logging, args.loglevel))
client = Client(args.url, timeout=args.timeout)
client.connect()
try:
node = client.get_node(args.nodeid)
if args.path:
node = node.get_child(args.path.split(","))
handler = SubHandler()
sub = client.create_subscription(500, handler)
if args.eventtype == "datachange":
sub.subscribe_data_change(node)
else:
sub.subscribe_events(node)
embed()
finally:
client.disconnect()
sys.exit(0)
print(args)
def start_loop(self):
interrupted = False
while not interrupted:
client_sigvib_server = None
try:
client_sigvib_server = Client(CLIENT_SIGVIB_SERVER)
client_sigvib_server.connect()
self.root_sig_vib = client_sigvib_server.get_root_node()
logger.info("Started Sigmatek Vibration loop")
while True:
# Send vibration if timeout is reached or difference exceeds 0.005m/s
self.fetch_vibration_x()
self.fetch_vibration_y()
time.sleep(INTERVAL)
except KeyboardInterrupt:
logger.info("KeyboardInterrupt, gracefully closing")
if client_sigvib_server:
client_sigvib_server.disconnect()
pr_client.disconnect()
interrupted = True
except Exception as e:
logger.warning(
"Exception Sigmatek Vibration loop, Reconnecting in 60 seconds: {}"
.format(e))
time.sleep(60)
def start_loop(self):
interrupted = False
while not interrupted:
client_sigshelf_server = None
try:
client_sigshelf_server = Client(CLIENT_SIGSHELF_SERVER)
client_sigshelf_server.connect()
self.root_sig_shelf = client_sigshelf_server.get_root_node()
logger.info("Started Sigmatek Shelf loop")
while True:
self.fetch_shelf_data()
time.sleep(INTERVAL)
except KeyboardInterrupt:
logger.info("KeyboardInterrupt, gracefully closing")
if client_sigshelf_server:
client_sigshelf_server.disconnect()
pr_client.disconnect()
interrupted = True
except Exception as e:
logger.warning(
"Exception Sigmatek Shelf loop, Reconnecting in 60 seconds: {}"
.format(e))
time.sleep(60)
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)
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)
def register_to_discovery(self, url, period=60):
"""
Register to a OPC-UA Discovery server. Registering must be renewed at
least every 10 minutes, so this method will use our asyncio thread to
re-register every period seconds
"""
self._discovery_period = period
self._discovery_client = Client(url)
self._discovery_client.connect()
self.iserver.loop.call_soon(self._renew_registration)
def uadiscover():
parser = argparse.ArgumentParser(
description="Performs OPC UA discovery and prints information on servers and endpoints."
)
add_minimum_args(parser)
parser.add_argument(
"-n", "--network", action="store_true", help="Also send a FindServersOnNetwork request to server"
)
# parser.add_argument("-s",
# "--servers",
# action="store_false",
# help="send a FindServers request to server")
# parser.add_argument("-e",
# "--endpoints",
# action="store_false",
# help="send a GetEndpoints request to server")
args = parse_args(parser)
client = Client(args.url, timeout=args.timeout)
if args.network:
print("Performing discovery at {}\n".format(args.url))
for i, server in enumerate(client.connect_and_find_servers_on_network(), start=1):
print("Server {}:".format(i))
# for (n, v) in application_to_strings(server):
# print(' {}: {}'.format(n, v))
print("")
print("Performing discovery at {}\n".format(args.url))
for i, server in enumerate(client.connect_and_find_servers(), start=1):
print("Server {}:".format(i))
for (n, v) in application_to_strings(server):
print(" {}: {}".format(n, v))
print("")
for i, ep in enumerate(client.connect_and_get_server_endpoints(), start=1):
print("Endpoint {}:".format(i))
for (n, v) in endpoint_to_strings(ep):
print(" {}: {}".format(n, v))
print("")
sys.exit(0)
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 __init__(self, address:str, port:int=502, interval:float=3):
super().__init__()
self.address=address
self.port=port
self.interval=interval
self.handler=OPCPLC.Handler(self)
self.subscription=None
self.objects=None
self.tagbynodeid={}
self.client = Client("opc.tcp://"+self.address+":"+str(self.port)+"/")
self.create("")
def uadiscover():
parser = argparse.ArgumentParser(description="Performs OPC UA discovery and prints information on servers and endpoints.")
add_minimum_args(parser)
args = parser.parse_args()
logging.basicConfig(format="%(levelname)s: %(message)s", level=getattr(logging, args.loglevel))
client = Client(args.url, timeout=args.timeout)
for i, server in enumerate(client.find_all_servers(), start=1):
print('Server {}:'.format(i))
for (n, v) in application_to_strings(server):
print(' {}: {}'.format(n, v))
print('')
client = Client(args.url, timeout=args.timeout)
for i, ep in enumerate(client.get_server_endpoints()):
print('Endpoint {}:'.format(i))
for (n, v) in endpoint_to_strings(ep):
print(' {}: {}'.format(n, v))
print('')
sys.exit(0)
def uahistoryread():
parser = argparse.ArgumentParser(description="Read history of a node")
add_common_args(parser)
parser.add_argument("--starttime",
default="",
help="Start time, formatted as YYYY-MM-DD [HH:MM[:SS]]. Default: current time")
parser.add_argument("--endtime",
default="",
help="End time, formatted as YYYY-MM-DD [HH:MM[:SS]]. Default: current time")
args = parser.parse_args()
if args.nodeid == "i=84" and args.path == "":
parser.print_usage()
print("uahistoryread: error: A NodeId or BrowsePath is required")
sys.exit(1)
logging.basicConfig(format="%(levelname)s: %(message)s", level=getattr(logging, args.loglevel))
client = Client(args.url, timeout=args.timeout)
client.connect()
try:
node = client.get_node(args.nodeid)
if args.path:
node = node.get_child(args.path.split(","))
starttime = str_to_datetime(args.starttime)
endtime = str_to_datetime(args.endtime)
print("Reading raw history of node {} at {}; start at {}, end at {}\n".format(node, args.url, starttime, endtime))
print_history(node.read_raw_history(starttime, endtime))
finally:
client.disconnect()
sys.exit(0)
def uals():
parser = argparse.ArgumentParser(description="Browse OPC-UA node and print result")
add_common_args(parser)
#parser.add_argument("-l",
#dest="long_format",
#default=ua.AttributeIds.Value,
#help="use a long listing format")
parser.add_argument("-d",
"--depth",
default=1,
type=int,
help="Browse depth")
args = parser.parse_args()
logging.basicConfig(format="%(levelname)s: %(message)s", level=getattr(logging, args.loglevel))
client = Client(args.url, timeout=args.timeout)
client.connect()
try:
node = client.get_node(args.nodeid)
if args.path:
node = node.get_child(args.path.split(","))
print("Browsing node {} at {}\n".format(node, args.url))
_lsprint(client, node.nodeid, args.depth - 1)
finally:
client.disconnect()
sys.exit(0)
print(args)
def uasubscribe():
parser = argparse.ArgumentParser(description="Subscribe to a node and print results")
add_common_args(parser)
parser.add_argument("-t",
"--eventtype",
dest="eventtype",
default="datachange",
choices=['datachange', 'event'],
help="Event type to subscribe to")
args = parse_args(parser, requirenodeid=True)
client = Client(args.url, timeout=args.timeout)
client.connect()
try:
node = get_node(client, args)
handler = SubHandler()
sub = client.create_subscription(500, handler)
if args.eventtype == "datachange":
sub.subscribe_data_change(node)
else:
sub.subscribe_events(node)
embed()
finally:
client.disconnect()
sys.exit(0)
print(args)