/usr/share/epoptes-client/endsession is in epoptes-client 0.5.10-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 | #!/bin/sh
###########################################################################
# Requests a logout, reboot or shutdown.
# Currently it supports Gnome, KDE, XFCE and LXDE.
# Usage: endsession --logout|--reboot|--shutdown
#
# Copyright (C) 2011 Alkis Georgopoulos <alkisg@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# On Debian GNU/Linux systems, the complete text of the GNU General
# Public License can be found in `/usr/share/common-licenses/GPL'.
###########################################################################
die() {
    echo "$@" >&2
    exit 1
}
is_root() {
    test $(id -u) -eq 0
}
is_ltsp() {
    test -n "$LTSP_CLIENT"
}
do_logout() {
    # Reset the xprop in case the user asks for a reboot, cancels it
    # (e.g. unsaved work), and then he asks for a logout instead.
    if [ $action = "logout" ] && is_ltsp; then
        # LTSP_LOGOUT_ACTION might not exist, but we don't care
        xprop -root -remove LTSP_LOGOUT_ACTION 2>/dev/null
    fi
    # Gnome
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.gnome.SessionManager /org/gnome/SessionManager \
      org.gnome.SessionManager.Logout uint32:1 2>&1 && return
    # KDE
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.kde.ksmserver /KSMServer org.kde.KSMServerInterface.logout \
      int32:0 int32:0 int32:0 2>&1 && return
    # Mate
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.mate.SessionManager /org/mate/SessionManager \
      org.mate.SessionManager.Logout uint32:1 2>&1 && return
    # XFCE
    xfce4-session-logout --logout 2>&1 && return
    # LXDE
    test -n "$_LXSESSION_PID" && kill "$_LXSESSION_PID" && return
    
    # systemd
    test -n "$XDG_SESSION_ID" && \
    dbus-send --system --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.freedesktop.login1 /org/freedesktop/login1 \
      org.freedesktop.login1.Manager.TerminateSession string:"$XDG_SESSION_ID" \
      2>&1 && return
    die "I don't know how to logout in this environment"
}
do_reboot() {
    if is_root; then
        reboot && return
    elif is_ltsp; then
        # Notify ldm that we want to reboot after logoff
        xprop -root -f LTSP_LOGOUT_ACTION 8s -set LTSP_LOGOUT_ACTION REBOOT
        do_logout && return
    fi
    # Gnome
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.gnome.SessionManager /org/gnome/SessionManager \
      org.gnome.SessionManager.RequestReboot 2>&1 && return
    # KDE
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.kde.ksmserver /KSMServer org.kde.KSMServerInterface.logout \
      int32:0 int32:1 int32:0 2>&1 && return
    
    # Mate
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.mate.SessionManager /org/mate/SessionManager \
      org.mate.SessionManager.RequestReboot 2>&1 && return
    
    # XFCE and LXDE 
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.freedesktop.PowerManagement /org/freedesktop/PowerManagement \
      org.freedesktop.PowerManagement.Reboot 2>&1 && return
    
    # systemd
    dbus-send --system --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.freedesktop.login1 /org/freedesktop/login1 \
      org.freedesktop.login1.Manager.Reboot boolean:true 2>&1 && return
    
    # ConsoleKit is the last resort since it doesn't allow inhibiting
    dbus-send --system --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.freedesktop.ConsoleKit /org/freedesktop/ConsoleKit/Manager \
      org.freedesktop.ConsoleKit.Manager.Restart 2>&1 && return
    die "I don't know how to reboot in this environment"
}
do_shutdown() {
    if is_root; then
        poweroff && return
    elif is_ltsp; then
        # Notify ldm that we want to poweroff after logoff
        xprop -root -f LTSP_LOGOUT_ACTION 8s -set LTSP_LOGOUT_ACTION HALT
        do_logout && return
    fi
    # Gnome
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.gnome.SessionManager /org/gnome/SessionManager \
      org.gnome.SessionManager.RequestShutdown 2>&1 && return
    # KDE
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.kde.ksmserver /KSMServer org.kde.KSMServerInterface.logout \
      int32:0 int32:2 int32:0 2>&1 && return
    
    # Mate
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.mate.SessionManager /org/mate/SessionManager \
      org.mate.SessionManager.RequestShutdown 2>&1 && return
    # XFCE and LXDE 
    dbus-send --session --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.freedesktop.PowerManagement /org/freedesktop/PowerManagement \
      org.freedesktop.PowerManagement.Shutdown && return
    
    # systemd
    dbus-send --system --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.freedesktop.login1 /org/freedesktop/login1 \
      org.freedesktop.login1.Manager.PowerOff boolean:true 2>&1 && return
    
    # ConsoleKit is the last resort since it doesn't allow inhibiting
    dbus-send --system --type=method_call --print-reply --reply-timeout=2000 \
      --dest=org.freedesktop.ConsoleKit /org/freedesktop/ConsoleKit/Manager \
      org.freedesktop.ConsoleKit.Manager.Stop 2>&1 && return
    die "I don't know how to shutdown in this environment"
}
# main
# Hide all dbus output unless DEBUG is set.
test -z "$DEBUG" && exec >/dev/null
case "$1" in
    -l|--logout)
        action=logout
        ;;
    -r|--reboot)
        action=reboot
        ;;
    -s|--shutdown)
        action=shutdown
        ;;
    *)
        die "Usage: endsession --logout|--reboot|--shutdown"
        ;;
esac
do_$action
 |