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{"@context":"https://schema.org","@type":"QAPage","mainEntity":{"@type":"Question","name":"Register a new secret agent","text":"
Hi,
\nI want to create a small python script that does the same thing as 'nmcli -t agent secret', i.e. register itself as the NetworkManager's secret agent and forward all password requests to the terminal input, replacing the systems dialog. I'm new to D-Bus and couldn't figure out how to do that using python-sdbus-networkmanager. Would it be possible to add a small example for that?
","upvoteCount":1,"answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"
After reading NetworkManager documentation I realized that the agent is not required to obtain any D-Bus names.
\n
So I fixed your code and added example of overriding the agent methods:
\n
from __future__ import annotations\n\nfrom asyncio import new_event_loop\nfrom typing import Any\n\nimport sdbus\nfrom sdbus_async.networkmanager import (\n    NetworkManagerSecretAgentInterfaceAsync,\n    NetworkManagerAgentManager,\n    NetworkManagerConnectionProperties,\n)\n\nsdbus.set_default_bus(sdbus.sd_bus_open_system())\n\n\nclass MySecretAgent(NetworkManagerSecretAgentInterfaceAsync):\n    @sdbus.dbus_method_async_override()\n    async def get_secrets(\n        self,\n        connection: NetworkManagerConnectionProperties,\n        connection_path: str,\n        setting_name: str,\n        hints: list[str],\n        flags: int,\n    ) -> dict[str, dict[str, tuple[str, Any]]]:\n        \"\"\"Retrieve stored secrets\"\"\"\n        print(\"get_secrets called\")\n        print(\"Connection:\", connection)\n        print(\"Connection path:\", connection_path)\n        print(\"Setting name:\", setting_name)\n        print(\"Hints:\", hints)\n        print(\"Flags:\", flags)\n        raise NotImplementedError\n\n    @sdbus.dbus_method_async_override()\n    async def save_secrets(\n        self,\n        connection: NetworkManagerConnectionProperties,\n        connection_path: str,\n    ) -> None:\n        \"\"\"Save given secrets\"\"\"\n        print(\"save_secrets called\")\n        print(\"Connection:\", connection)\n        print(\"Connection path:\", connection_path)\n        raise NotImplementedError\n\n\nsecret_agent = MySecretAgent()\n\n\nasync def start() -> None:\n    # Start serving at /org/freedesktop/NetworkManager/SecretAgent path\n    secret_agent.export_to_dbus('/org/freedesktop/NetworkManager/SecretAgent')\n    # Register the agent\n    agent_manager = NetworkManagerAgentManager()\n    await agent_manager.register('org.example.test')\n    print(\"Registered\")\n\n\nloop = new_event_loop()\nloop.run_until_complete(start())\nloop.run_forever()
\n
After running it and editing some Wifi passwords with nm-connection-editor it seems to be working:
\n
Registered\nsave_secrets called\nConnection: {'connection': {'id': ('s', 'Access Point'), .....................\nConnection path: /org/freedesktop/NetworkManager/Settings/8\n
","upvoteCount":0,"url":"https://github.com/python-sdbus/python-sdbus-networkmanager/discussions/73#discussioncomment-13122191"}}}