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Editing File: /etc/apparmor.d/abstractions/exo-open

# vim:syntax=apparmor

# This abstraction is designed to be used in a child profile to limit what
# confined application can invoke via exo-open helper.
#
# NOTE: most likely you want to use xdg-open abstraction instead for better
# portability across desktop environments, unless you are sure that confined
# application only uses /usr/bin/exo-open directly.
#
# Usage example:
#
# ```
# profile foo /usr/bin/foo {
# ...
# /usr/bin/exo-open rPx -> foo//exo-open,
# ...
# } # end of main profile
#
# # out-of-line child profile
# profile foo//exo-open {
#   #include <abstractions/exo-open>
#
#   # needed for ubuntu-* abstractions
#   #include <abstractions/ubuntu-helpers>
#
#   # Only allow to handle http[s]: and mailto: links
#   #include <abstractions/ubuntu-browsers>
#   #include <abstractions/ubuntu-email>
#
#   # Add if accesibility access is considered as required
#   # (for message boxe in case exo-open fails)
#   #include <abstractions/dbus-accessibility>
#
#   # < add additional allowed applications here >
# }

#include <abstractions/X>
  #include <abstractions/audio> # for alert messages
  #include <abstractions/base>
  #include <abstractions/dbus-session-strict>
  #include <abstractions/gnome>

# Main executables

/usr/bin/exo-open rix,
  /usr/lib{32,64,/@{multiarch}}/xfce4/exo-[0-9]/exo-helper-[0-9] ix,

# Other executables

/{,usr/}bin/which rix,

# Deny DBus

# for GTK error message dialog, not required exo-open to work.
  deny dbus send
    bus=session
    path=/org/gtk/vfs/mounttracker,

# System files

/etc/xdg/{,xdg-*/}xfce4/helpers.rc r,
  /etc/xfce4/defaults.list r, # TODO: move into xfce4 abstraction?
  /usr/share/sounds/freedesktop/** r, # for message box alert sound
  /usr/share/xfce4/helpers/*.desktop r,
  /usr/share/{xfce{,4},xubuntu}/applications/{,*.list} r,

# User files

owner @{PROC}/@{pid}/fd/ r,
  owner @{HOME}/.config/xfce4/helpers.rc r,
  owner @{HOME}/.local/share/xfce4/helpers/*.desktop r,

# Include additions to the abstraction
  #include if exists <abstractions/exo-open.d>

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