Server set User with Password

[EricWeinz]

Hello everyone,

I am currently trying to create a user on my server with username and password. Unfortunately I always get the error message: "NoneType" object has no attribute "set_user_manager" at the line server.user_manager.set_user_manager(user_manager).
Does anyone know what the problem could be?

My Code:

import asyncio
from asyncua.server.user_managers import UserManager
import logging
import os
import sys
sys.path.insert(0,"..")
from asyncua import Server, ua
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

users_db =  {
                "user1": "pw1"
            }

def user_manager(isession, username, password):
    isession.user = UserManager.User
    return username in users_db and password == users_db[username]

async def main():
    _logger = logging.getLogger(__name__)
    # setup our server
    server = Server()
    await server.init()
    server.set_endpoint("opc.tcp://x.x.x.x:4840/freeopcua/server/")
    uri = "http://examples.freeopcua.github.io"
    idx = await server.register_namespace(uri)

    # Setting up security: using Basic256Sha256 and Sign & Encrypt
    await server.load_private_key(os.path.join(BASE_DIR,"Keys", "private-key.pem"),"xxx")
    await server.load_certificate(os.path.join(BASE_DIR,"Keys","certificate.pem"))
    server.set_security_policy([
        "Basic256Sha256_SignAndEncrypt"
    ])
    # Setting username and password for authentication
    server.set_security_IDs(["Username"])
    server.user_manager.set_user_manager(user_manager)

    _logger.info("Starting server!")
    async with server:
        while True:
            await asyncio.sleep(1)

if __name__ == "__main__":
    logging.basicConfig(level=logging.DEBUG)
    asyncio.run(main(), debug=True)

[schroeder-]

I don't no where you get that code from, but this is how it should look like:

from asyncua.server.users import UserRole, User

class UserManager:
    def get_user(self, iserver, username=None, password=None, certificate=None):
         if username in users_db and password == users_db[username]:
             return User(role=UserRole.User)
        return None

async def main():
        .....
        server = Server(user_manager=UserManager())
        .....

[EricWeinz]

Thank you it works! :)

I know it is the deprecated Version but I got the code from here:
FreeOpcUa/python-opcua#1153