[Bug] System DBus not available by default on Flatpak install

[ppom0]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

When I run the app via Flatpak, there is this error in the logs:

$ flatpak run com.github.KRTirtho.Spotube
[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: SocketException: Connection failed (OS Error: No such file or directory, errno = 2), address = /var/run/dbus/system_bus_socket, port = 0
#0      _NativeSocket.startConnect (dart:io-patch/socket_patch.dart:682)
#1      _NativeSocket.connect (dart:io-patch/socket_patch.dart:948)
#2      _RawSocket.connect (dart:io-patch/socket_patch.dart:1815)
#3      RawSocket.connect (dart:io-patch/socket_patch.dart:21)
#4      DBusClient._openSocket (package:dbus/src/dbus_client.dart:767)
#5      DBusClient._connect (package:dbus/src/dbus_client.dart:787)
#6      DBusClient.callMethod (package:dbus/src/dbus_client.dart:607)
#7      DBusClient.getNameOwner (package:dbus/src/dbus_client.dart:448)
#8      DBusClient._findUniqueName (package:dbus/src/dbus_client.dart:624)
#9      DBusSignalStream._onListen (package:dbus/src/dbus_client.dart:131)
[...]

flutter: RangeError (byteOffset): Invalid value: Valid value range is empty: 0

Expected Behavior

I don't know why the system DBus is needed, but it should be made accessible in the Flatpak sandbox.

Steps To Reproduce

1. With flatpak
2. flatpak run com.github.KRTirtho.Spotube
3. See error up here ↑

Spotube Version

v2.6.0

Operating System

Linux

Linux Distribution (if applicable)

NixOS

Operating System Version

NixOS 22.11

Installation Source

Flathub (Flatpak)

Additional information

I could make rid of this error by adding --socket=system-bus to the flatpak command:
flatpak run --socket=system-bus com.github.KRTirtho.Spotube

So I believe this socket should be added to the permissions in the flatpak packaging.

But maybe accessing the system DBus socket is useless, as I don't see which functionnalities are broken without --socket=system-bus. In which case you may remove this session opening in the code? (again, I don't know what it's for)

[KRTirtho]

This has been fixed already. Please check the latest version & close the issue

[KRTirtho]

Fixed in v3.1.1