Connect to prosys opc ua simulation server failed

[unregistered33]

Hi! Im try to connect to prosys opc ua server with example:
[(https://github.com/FreeOpcUa/opcua-asyncio/blob/master/examples/client_to_prosys.py)]
but have error:
"
................
File "C:\Users\unreg\AppData\Local\Programs\Python\Python311\Lib\enum.py", line 695, in call
return cls.new(cls, value)
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\unreg\AppData\Local\Programs\Python\Python311\Lib\enum.py", line 1111, in new
raise ve_exc
ValueError: 36 is not a valid NodeIdType"

Prosys Server version 5.5.2-362
SDK version 5.2.8-159

This is very strange, because about six months ago the connection was fine (to the old version of the server).
The client UAexpert 1.6.3 448 work fine
How i can fix it? Thanks!

[unregistered33]

I'm trying to mark code enum.py with "print" like this:

def __new__(cls, value):
        # all enum instances are actually created during class construction
        # without calling this method; this method is called by the metaclass'
        # __call__ (i.e. Color(3) ), and by pickle
        if type(value) is cls:
            # For lookups like Color(Color.RED)
            return value
        # by-value search for a matching enum member
        # see if it's in the reverse mapping (for hashable values)
        print(f'VALUE: {value}')
        try:
            return cls._value2member_map_[value]
        except KeyError:
            print(f'key error {value}')
            # Not found, no need to do long O(n) search
            pass
        except TypeError:
            print(f'type error {value}')
            # not there, now do long search -- O(n) behavior
            for member in cls._member_map_.values():
                if member._value_ == value:
                    print(f'Member: {member}')
                    return member
        # still not found -- try _missing_ hook
        try:
            exc = None
            print('is value missing?')
            result = cls._missing_(value)
        except Exception as e:
            print(f'Yes its missing! {str(e)}')
            exc = e
            result = None
        try:
            print('Now what?!')
            if isinstance(result, cls):
                print(f'Instance:{result}')
                return result
            elif (
                    Flag is not None and issubclass(cls, Flag)
                    and cls._boundary_ is EJECT and isinstance(result, int)
                ):
                print(f'Result {result}')
                return result
            else:
                ve_exc = ValueError("%r is not a valid %s" % (value, cls.__qualname__))
                if result is None and exc is None:
                    print(f'Exception raise! {ve_exc}')
                    raise ve_exc
                elif exc is None:
                    exc = TypeError(
                            'error in %s._missing_: returned %r instead of None or a valid member'
                            % (cls.__name__, result)
                            )
                if not isinstance(exc, ValueError):
                    exc.__context__ = ve_exc

                raise exc
        finally:
            # ensure all variables that could hold an exception are destroyed
            exc = None
            ve_exc = None```
and got this log:

VALUE: 0
VALUE: 0
------------removed similar lines-----------------
VALUE: 66
key error 66
is value missing?
Now what?!
VALUE: 64
Instance:re.IGNORECASE|re.VERBOSE
VALUE: 0
------------removed similar lines-----------------
VALUE: 72
key error 72
is value missing?
Now what?!
VALUE: 64
Instance:re.MULTILINE|re.VERBOSE
VALUE: 0
------------removed similar lines-----------------
VALUE: 67
key error 67
is value missing?
Now what?!
Instance:CertificateValidatorOptions.TIME_RANGE|URI|PEER_CLIENT
VALUE: 0
VALUE: 0
VALUE: 2
VALUE: 1
VALUE:
key error
is value missing?
Now what?!
Exception raise! is not a valid Handlers
VALUE:
key error
is value missing?
Now what?!
Exception raise! is not a valid Handlers
VALUE: 0
VALUE: 0
VALUE: 23
VALUE: 1
VALUE: 2
VALUE: 1
VALUE: 1
VALUE: 23
VALUE: 23
VALUE: 1
VALUE: 1
VALUE: 0
VALUE: 1
VALUE: 36
key error 36
is value missing?
Now what?!
Exception raise! 36 is not a valid NodeIdType
VALUE: functools.partial(<bound method Runner._on_sigint of <asyncio.runners.Runner object at 0x0000024F83B7B790>>, main_task=<Task finished name='Task-1' coro=<main() done, defined at C:\Workspace\Python\asyncua_prosys\main.py:19> exception=ValueError('36 is not a valid NodeIdType')>)
key error functools.partial(<bound method Runner._on_sigint of <asyncio.runners.Runner object at 0x0000024F83B7B790>>, main_task=<Task finished name='Task-1' coro=<main() done, defined at C:\Workspace\Python\asyncua_prosys\main.py:19> exception=ValueError('36 is not a valid NodeIdType')>)
is value missing?
Now what?!
Exception raise! functools.partial(<bound method Runner._on_sigint of <asyncio.runners.Runner object at 0x0000024F83B7B790>>, main_task=<Task finished name='Task-1' coro=<main() done, defined at C:\Workspace\Python\asyncua_prosys\main.py:19> exception=ValueError('36 is not a valid NodeIdType')>) is not a valid Handlers
VALUE: functools.partial(<bound method Runner._on_sigint of <asyncio.runners.Runner object at 0x0000024F83B7B790>>, main_task=<Task finished name='Task-1' coro=<main() done, defined at C:\Workspace\Python\asyncua_prosys\main.py:19> exception=ValueError('36 is not a valid NodeIdType')>)
key error functools.partial(<bound method Runner._on_sigint of <asyncio.runners.Runner object at 0x0000024F83B7B790>>, main_task=<Task finished name='Task-1' coro=<main() done, defined at C:\Workspace\Python\asyncua_prosys\main.py:19> exception=ValueError('36 is not a valid NodeIdType')>)
is value missing?
Now what?!
Exception raise! functools.partial(<bound method Runner._on_sigint of <asyncio.runners.Runner object at 0x0000024F83B7B790>>, main_task=<Task finished name='Task-1' coro=<main() done, defined at C:\Workspace\Python\asyncua_prosys\main.py:19> exception=ValueError('36 is not a valid NodeIdType')>) is not a valid Handlers
Traceback (most recent call last):
File "C:\Workspace\Python\asyncua_prosys\main.py", line 32, in
asyncio.run(main())
File "C:\Users\unreg\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 190, in run
return runner.run(main)
^^^^^^^^^^^^^^^^
File "C:\Users\unreg\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 118, in run
return self._loop.run_until_complete(task)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\unreg\AppData\Local\Programs\Python\Python311\Lib\asyncio\base_events.py", line 650, in run_until_complete
return future.result()
^^^^^^^^^^^^^^^
File "C:\Workspace\Python\asyncua_prosys\main.py", line 24, in main
await client.connect()
File "C:\Workspace\Python\asyncua_prosys\venv\Lib\site-packages\asyncua\client\client.py", line 321, in connect
await self.create_session()
File "C:\Workspace\Python\asyncua_prosys\venv\Lib\site-packages\asyncua\client\client.py", line 510, in create_session
response = await self.uaclient.create_session(params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Workspace\Python\asyncua_prosys\venv\Lib\site-packages\asyncua\client\ua_client.py", line 364, in create_session
data = await self.protocol.send_request(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Workspace\Python\asyncua_prosys\venv\Lib\site-packages\asyncua\client\ua_client.py", line 189, in send_request
self.check_answer(data, f" in response to {request.class.name}")
File "C:\Workspace\Python\asyncua_prosys\venv\Lib\site-packages\asyncua\client\ua_client.py", line 196, in check_answer
hdr = struct_from_binary(ua.ResponseHeader, data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Workspace\Python\asyncua_prosys\venv\Lib\site-packages\asyncua\ua\ua_binary.py", line 719, in struct_from_binary
return _create_dataclass_deserializer(objtype)(data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Workspace\Python\asyncua_prosys\venv\Lib\site-packages\asyncua\ua\ua_binary.py", line 709, in decode
kwargs[field.name] = deserialize_field(data)
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Workspace\Python\asyncua_prosys\venv\Lib\site-packages\asyncua\ua\ua_binary.py", line 709, in decode
kwargs[field.name] = deserialize_field(data)
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Workspace\Python\asyncua_prosys\venv\Lib\site-packages\asyncua\ua\ua_binary.py", line 542, in extensionobject_from_binary
typeid = nodeid_from_binary(data)
^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Workspace\Python\asyncua_prosys\venv\Lib\site-packages\asyncua\ua\ua_binary.py", line 457, in nodeid_from_binary
nidtype = ua.NodeIdType(encoding & 0b00111111)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\unreg\AppData\Local\Programs\Python\Python311\Lib\enum.py", line 695, in call
return cls.new(cls, value)
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\unreg\AppData\Local\Programs\Python\Python311\Lib\enum.py", line 1121, in new
raise ve_exc
ValueError: 36 is not a valid NodeIdType```

Is this a bug or am I doing something wrong?

[oroulet]

that was not easy but I finally found out the new prosys server now requires a certificate even without any encryption... and we did not support that...
fixed in #1827

[MarkSSH]

Hi, I'm also try to connect to prosys opc ua server with the fixed example, also got an error:
ValueError: 36 is not a valid NodeIdType

Is this error really be fixed?

[oroulet]

supposed to be fixed in master yes

[MarkSSH]

if i dev in my own computer, and also run a prosys opc ua server, should i generation an own "my_cert.der" file?
Can i just use "my_cert.der" file in master without change anything?

[MarkSSH]

when i downgrade asyncua to 1.1.5, it can be resolved!

but i want to know how it work?