def __init__(self, url, timeout=4):
"""
used url argument to connect to server.
if you are unsure of url, write at least hostname and port
and call get_endpoints
timeout is the timeout to get an answer for requests to server
public member of this call are available to be set by API users
"""
self.logger = logging.getLogger(__name__)
self.server_url = urlparse(url)
self.name = "Pure Python Client"
self.description = self.name
self.application_uri = "urn:freeopcua:client"
self.product_uri = "urn:freeopcua.github.no:client"
self.security_policy = ua.SecurityPolicy()
self.secure_channel_id = None
self.default_timeout = 3600000
self.secure_channel_timeout = self.default_timeout
self.session_timeout = self.default_timeout
self._policy_ids = []
self.uaclient = UaClient(timeout)
self.user_certificate = None
self.user_private_key = None
self._session_counter = 1
self.keepalive = None
def __init__(self, url, timeout=4):
"""
:param url: url of the server.
if you are unsure of url, write at least hostname
and port and call get_endpoints
:param timeout:
Each request sent to the server expects an answer within this
time. The timeout is specified in seconds.
"""
self.logger = logging.getLogger(__name__)
self.server_url = urlparse(url)
# take initial username and password from the url
self._username = self.server_url.username
self._password = self.server_url.password
self.name = "Pure Python Client"
self.description = self.name
self.application_uri = "urn:freeopcua:client"
self.product_uri = "urn:freeopcua.github.io:client"
self.security_policy = ua.SecurityPolicy()
self.secure_channel_id = None
self.secure_channel_timeout = 3600000 # 1 hour
self.session_timeout = 3600000 # 1 hour
self._policy_ids = []
self.uaclient = UaClient(timeout)
self.user_certificate = None
self.user_private_key = None
self._server_nonce = None
self._session_counter = 1
self.keepalive = None
self.nodes = Shortcuts(self.uaclient)
self.max_messagesize = 0 # No limits
self.max_chunkcount = 0 # No limits
def __init__(self, endpoint):
self.server_url = urlparse(endpoint.url)
self._username = self.server_url.username
self._password = self.server_url.password
self.name = "BioPy OPCUA Client"
self.description = self.name
self.application_uri = "urn:biopy:client"
self.product_uri = "urn:biopy.com:client"
self.secure_channel_id = None
self.secure_channel_timeout = 3600000
self.session_timeout = 3600000
self._policy_ids = []
self.user_certificate = None
self.user_private_key = None
self._server_nonce = None
self._session_counter = 1
self.keepalive = None
self.max_messagesize = 0
self.max_chunkcount = 0
if endpoint.policy:
self.set_security(
getattr(security_policies, "SecurityPolicy" + endpoint.policy),
endpoint.certificate.path,
endpoint.private_key.path,
server_certificate_path=endpoint.server_certificate.path,
mode=getattr(MessageSecurityMode, endpoint.mode))
else:
self.security_policy = SecurityPolicy()
self.uaclient = UaClient(endpoint.timeout)
self.nodes = Shortcuts(self.uaclient)
self.connect()
