policy kit for backend in python

To integrate PolicyKit with a backend (such as a Python application), you will first need to define the necessary PolicyKit policy files. These files should be added to /usr/share/polkit-1/actions/, with a .policy extension.

Here's an example of a PolicyKit policy file that allows members of the admin group to perform a certain action:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE policyconfig PUBLIC
 "-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN"
 "http://www.freedesktop.org/software/polkit/policyconfig-1.dtd">
<policyconfig>

  <action id="org.example.policykitbackend.someaction">
    <description>Perform Some Action</description>
    <message>Authentication is required to perform some action</message>
    <defaults>
      <allow_any>no</allow_any>
      <allow_inactive>no</allow_inactive>
      <allow_active>auth_admin_keep</allow_active>
    </defaults>
    <annotate key="org.freedesktop.policykit.imply">auth_admin</annotate>
  </action>

</policyconfig>

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In your Python application, you can check the authorization with PolicyKit using polkit library. Here is a simple example:

main.py
import polkit

authorization_result = polkit.check_authorization_sync(
    None, 'org.example.policykitbackend.someaction', None, polkit.CheckAuthorizationFlags.ALLOW_USER_INTERACTION, None
)

if authorization_result.get_is_authorized():
    print("Action authorized")
else:
    print("Action not authorized")

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Remember to replace 'org.example.policykitbackend.someaction' with the actual action ID defined in your PolicyKit policy file.

Make sure your Python application has the necessary permissions to communicate with PolicyKit.

This setup allows you to enforce the defined policies for your backend application using PolicyKit.

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related categories

python
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