UI in WSL2

[dorinclisu]

I tried running opensnitch-ui in WSL2 but the main control panel window is not appearing. However, the popup windows (for deciding on new connections) do appear and seem to work fine.

So the question is, can the UI ever work in WSL2, and what would be necessary for that?

This is the output:

$ opensnitch-ui
Themes not available. Install qt-material if you want to change GUI's appearance: pip3 install qt-material.
Loaded network aliases from /usr/lib/python3/dist-packages/opensnitch/utils/network_aliases/network_aliases.json
         ~ OpenSnitch GUI - 1.7.2 ~
        protobuf: 3.20.0 - grpc: 1.41.0
--------------------------------------------------

QT_AUTO_SCREEN_SCALE_FACTOR: True
gRPC Max Message Length: None
                  Bytes: 4194304
is new file, or IN MEMORY, setting initial schema version
setting schema version to: 3
setting schema version to: 3
Setting journal_mode:  OFF
Setting DB memory optimizations
schema version: 3
db schema is up to date
actions.__init__ exception: [Errno 17] File exists: '/home/dorin/.config//opensnitch/actions/'
actions.__init__ exception: [Errno 17] File exists: '/home/dorin/.config//opensnitch/actions/'
Loading translations: /usr/lib/python3/dist-packages/opensnitch/utils/../i18n locale: en_US
DesktopNotifications not available (install python3-notify2): org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Notifications was not provided by any .service files
using IPASN DB: /usr/lib/python3/dist-packages/data/ipasn_20140513_v12.dat.gz
actions.__init__ exception: [Errno 17] File exists: '/home/dorin/.config//opensnitch/actions/'
Qt standardIcon exception: security-medium , 'security-medium'
Qt standardIcon exception: security-low , 'security-low'
DesktopNotifications not available (install python3-notify2): org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Notifications was not provided by any .service files
Qt standardIcon exception: address-book-new , type object 'QStyle' has no attribute ''
Qt standardIcon exception: system-run , type object 'QStyle' has no attribute ''
Using server address: unix:///tmp/osui.sock auth type: simple

WARNING: system tray not available. On GNOME you need the extension gnome-shell-extension-appindicator.
        Read more: https://github.com/evilsocket/opensnitch/wiki/GUI-known-problems#gui-does-not-show-up
        If you want to start OpenSnitch GUI in background even if tray not available, use --background argument.

[notifications] show() exception: You must call notify2.init() before using the notification features.
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/opensnitch/notifications.py", line 107, in show
    ntf.show()
  File "/usr/lib/python3/dist-packages/notify2.py", line 181, in show
    nid = dbus_iface.Notify(appname,       # app_name       (spec names)
  File "/usr/lib/python3/dist-packages/notify2.py", line 60, in __getattr__
    raise UninittedError("You must call notify2.init() before using the "
notify2.UninittedError: You must call notify2.init() before using the notification features.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/opensnitch/service.py", line 266, in __show_gui
    self._show_systray_msg_error()
  File "/usr/lib/python3/dist-packages/opensnitch/service.py", line 281, in _show_systray_msg_error
    self._desktop_notifications.show(
  File "/usr/lib/python3/dist-packages/opensnitch/notifications.py", line 110, in show
    raise Exception("[notifications] show() exception:", e)
Exception: ('[notifications] show() exception:', UninittedError('You must call notify2.init() before using the notification features.'))

[gustavo-iniguez-goya]

Hi @dorinclisu !

It should work I guess, it's just a Linux running in a VM. What distro and version are you using? Ubuntu?
Did you use the deb packages from github?

In Gnome you need to install the package gnome-shell-extension-appindicator in order to have the icon or the app in the systray.

But that exception should not occur. When the appindicator extension is not installed, the main window is launched. But in your case it's failing:

DesktopNotifications not available (install python3-notify2): org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Notifications was not provided by any .service files

See if installing the package python3-notify2 solves this issue. On my side I'll fix this exception.

[gustavo-iniguez-goya]

@dorinclisu , download latest release and try it again please: https://github.com/evilsocket/opensnitch/releases/tag/v1.8.0

I've just tested it on wsl2 with Ubuntu.24.04 and at least it doesn't crash.

The Qt theme doesn't seem to work, and there's no systray icon, maybe we need to install some package.
In any case, the qt-material works, so you can use it for a better user experience (pip3 install qt-material).