Polkit: Difference between revisions

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Show how to do authorization request debugging
 
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On NixOS, Polkit uses [https://duktape.org/ Duktape] as its JavaScript runtime. Keep that in mind when you try to write newfangled code.
On NixOS, Polkit uses [https://duktape.org/ Duktape] as its JavaScript runtime. Keep that in mind when you try to write newfangled code.
The rules you write, together with any rule generated by <code>security.polkit</code>, is stored at <code>/etc/polkit-1/rules.d/10-nixos.rules</code> for the current running generation.


=== Reboot/poweroff for unprivileged users ===
=== Reboot/poweroff for unprivileged users ===
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(This does ''not'' take into account the <code>security.polkit.adminIdentities</code> setting.)
(This does ''not'' take into account the <code>security.polkit.adminIdentities</code> setting.)
=== Debugging requested rules ===
To have Polkit print debug information for every incoming authorization, it is possible to create a debugging rule and enable Polkit debug printing:
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
  security.polkit = {
    debug = true;  // Enables `polkit.log` function
    extraConfig = ''
      polkit.addRule(function(action, subject) {
        polkit.log("");
        polkit.log("action=" + action);
        polkit.log("subject=" + subject);
      });
    '';
  };
</nowiki>}}


== Authentication agents ==
== Authentication agents ==
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Alternatively, you can start it on login by creating a systemd user service:
Alternatively, you can start it on login by creating a systemd user service:


=== Using NixOS ===
<syntaxhighlight lang="nix">
<syntaxhighlight lang="nix">
systemd = {
systemd.user.services.polkit-gnome-authentication-agent-1 = {
  user.services.polkit-gnome-authentication-agent-1 = {
  description = "polkit-gnome-authentication-agent-1";
    description = "polkit-gnome-authentication-agent-1";
  wantedBy = [ "graphical-session.target" ];
    wantedBy = [ "graphical-session.target" ];
  wants = [ "graphical-session.target" ];
    wants = [ "graphical-session.target" ];
  after = [ "graphical-session.target" ];
    after = [ "graphical-session.target" ];
  serviceConfig = {
    serviceConfig = {
    Type = "simple";
        Type = "simple";
    ExecStart = "${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1";
        ExecStart = "${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1";
    Restart = "on-failure";
        Restart = "on-failure";
    RestartSec = 1;
        RestartSec = 1;
    TimeoutStopSec = 10;
        TimeoutStopSec = 10;
      };
   };
   };
};
};
</syntaxhighlight>
</syntaxhighlight>


Another option is <code>lxqt.lxqt-policykit</code>, which can be launched on login through the command <code>lxqt-policykit-agent</code> on e.g. Hyprland.
=== Using Home Manager ===
<syntaxhighlight lang="nix">
systemd.user.services.polkit-gnome-authentication-agent-1 = {
  Unit = {
    Description = "polkit-gnome-authentication-agent-1";
    Wants = [ "graphical-session.target" ];
    After = [ "graphical-session.target" ];
  };
  Install = {
    WantedBy = [ "graphical-session.target" ];
  };
  Service = {
    Type = "simple";
    ExecStart = "${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1";
    Restart = "on-failure";
    RestartSec = 1;
    TimeoutStopSec = 10;
  };
};
</syntaxhighlight>Another option is <code>lxqt.lxqt-policykit</code>, which can be launched on login through the command <code>lxqt-policykit-agent</code> on e.g. Hyprland.


== Start the authentication agent in dwm ==
== Start the authentication agent in dwm ==
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</syntaxhighlight>
</syntaxhighlight>


Use this method, you won't need to change the codes even <code>mate.mate-polkit</code> gets an update.
Use this method, you won't need to change the codes even if <code>mate.mate-polkit</code> gets an update.


<syntaxhighlight lang=bash>
<syntaxhighlight lang=bash>
#!/bin/sh
#!/bin/sh
...
...
/nix/store/$(ls -la /nix/store | grep polkit-kde-agent | grep '^d' | awk '{print $9}')/libexec/polkit-kde-authentication-agent-1 &  
/nix/store/$(ls -la /nix/store | grep 'polkit-kde-agent' | grep '^d' | awk '{print $9}')/libexec/polkit-kde-authentication-agent-1 &  
...
...
</syntaxhighlight>
</syntaxhighlight>


The same but for <code>polkit-kde-agent</code>
The same but for <code>polkit-kde-agent</code>.