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#!/bin/ash
. /opt/openslx/config || exit 1
# If existent, no session is open. Will contain timestamp of last activity.
# If not existent, at least one user is logged in
CRONFILE="/etc/cron.d/idleaction-shutdown_schedule"
IDLEHINT="/dev/shm/idlehint"
NOW=$(date +%s)
#
# 1) Check for idle timeout
#
if [ -n "${SLX_LOGOUT_TIMEOUT}" ] && [ "${SLX_LOGOUT_TIMEOUT}" -gt 0 ]; then
# Logout timeout is set, see which users we should kick
IS_IDLE=yes
# get all sessions
SESSIONS=$(loginctl | awk '{print $1}')
if [ -n "$SESSIONS" ]; then
TMP="/dev/shm/idlecheck.tmp"
# Iterate over sessions
for ses in $SESSIONS; do
# Get information
loginctl show-session "$ses" > "$TMP"
NAME=$(grep '^Name=' "$TMP" | cut -c 6-)
[ -z "$NAME" ] && continue # No name - should not happen
export DISPLAY=$(grep '^Display=' "$TMP" | cut -c 9-)
# X11
if [ -n "$DISPLAY" ]; then
# Seems to be x11
IDLE=
export XAUTHORITY=$(ps a | grep " $DISPLAY " | grep -o -- '-auth.*$' | grep -m1 -v grep | awk '{print $2}')
[ -n "$XAUTHORITY" ] && [ -f "$XAUTHORITY" ] && IDLE=$(xprintidle)
# Now that we have DISPLAY and XAUTHORITY set, xprintidle should work
if [ -z "$IDLE" ]; then
# Try user's xauth
USRHOME=$(/usr/bin/getent passwd "$NAME" | awk -F ':' '{print $6}')
export XAUTHORITY="$USRHOME/.Xauthority"
[ -f "$XAUTHORITY" ] && IDLE=$(xprintidle)
fi
if [ -n "$IDLE" ]; then
IDLE=$(( $IDLE / 1000 ))
if [ -z "$IDLE" ] || [ "$IDLE" -lt "$SLX_LOGOUT_TIMEOUT" ]; then
IS_IDLE=no
else
loginctl terminate-session "$ses"
fi
else # xprintidle did not work
IS_IDLE=no
fi
continue # Done with this session, skip normal tty/ssh checks
fi
# end X11
# other sessions
IDLE=$(grep '^IdleSinceHint=' "$TMP" | cut -c 15-)
if [ "${#IDLE}" -lt 7 ]; then # wah wah waaaah
IS_IDLE=no
continue
fi
# divide by 1000000 by chopping of last 6 chars - number might be too large for $(( ))
IDLE=$(echo "$IDLE" | cut -c "-$(( ${#IDLE} - 6 ))")
[ "$IDLE" -gt "$NOW" ] && IDLE="$NOW"
IDLE=$(( $NOW - $IDLE ))
if [ "$IDLE" -lt "$SLX_LOGOUT_TIMEOUT" ]; then
IS_IDLE=no
else
loginctl terminate-session "$ses"
fi
# end other sessions
done
rm -f -- "$TMP"
fi
if [ "$IS_IDLE" = "yes" ]; then
[ ! -e "$IDLEHINT" ] && echo "$NOW" > "$IDLEHINT"
else
rm -f -- "$IDLEHINT"
fi
else
# No logout timeout is set, take shortcut for shutdown timeout (if set)
if [ -n "$SLX_SHUTDOWN_TIMEOUT" ]; then
SESSIONS=$(loginctl | wc -l)
if [ "$SESSIONS" = "0" ]; then
[ ! -e "$IDLEHINT" ] && echo "$NOW" > "$IDLEHINT"
else
rm -f -- "$IDLEHINT"
fi
fi
fi
#
# 2) Check for no-session-shutdown timeout
#
if [ -n "${SLX_SHUTDOWN_TIMEOUT}" ] && [ "${SLX_SHUTDOWN_TIMEOUT}" -gt 0 ] && [ -e "$IDLEHINT" ]; then
IDLE=$(cat "$IDLEHINT")
[ "$IDLE" -gt "$NOW" ] && IDLE="$NOW"
IDLE=$(( $NOW - $IDLE ))
if [ "$IDLE" -gt "$SLX_SHUTDOWN_TIMEOUT" ]; then
poweroff
fi
fi
#
# 3) Check for hard scheduled shutdown
#
# A cron file is created dynamically here so there's everything
# in one module and you don't need to repack config.tgz
invalid_time ()
{
slxlog "idleaction-schedule" "Invalid shutdown time: '$time'. Expected HH:MM format."
return 0
}
if [ -n "$SLX_SHUTDOWN_SCHEDULE" -o -n "$SLX_REBOOT_SCHEDULE" ] && [ ! -e "$CRONFILE" ]; then
echo "# OpenSLX: Trigger poweroff at certain time of day" > "$CRONFILE"
echo "SHELL=/bin/ash" >> "$CRONFILE"
echo "PATH=/usr/sbin:/usr/bin:/sbin:/bin:/opt/openslx/sbin:/opt/openslx/bin" >> "$CRONFILE"
echo "" >> "$CRONFILE"
for time in $SLX_SHUTDOWN_SCHEDULE; do
HOUR=${time%%:*}
MINUTE=${time##*:}
[ -z "$HOUR$MINUTE" ] && invalid_time && continue
[ "$HOUR" -lt 0 -o "$HOUR" -gt 23 ] && invalid_time && continue
[ "$MINUTE" -lt 0 -o "$MINUTE" -gt 59 ] && invalid_time && continue
echo "$MINUTE $HOUR * * * root /opt/openslx/scripts/idleaction-scheduled_action poweroff" >> "$CRONFILE"
done
# do it again for SLX_REBOOT_SCHEDULE
for time in $SLX_REBOOT_SCHEDULE; do
HOUR=${time%%:*}
MINUTE=${time##*:}
[ -z "$HOUR$MINUTE" ] && invalid_time && continue
[ "$HOUR" -lt 0 -o "$HOUR" -gt 23 ] && invalid_time && continue
[ "$MINUTE" -lt 0 -o "$MINUTE" -gt 59 ] && invalid_time && continue
echo "$MINUTE $HOUR * * * root /opt/openslx/scripts/idleaction-scheduled_action reboot" >> "$CRONFILE"
done
touch "/etc/cron.d" # Aufs bug where it won't update dir mtime when creating the file within
fi
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