#! /bin/sh
#
# usage: logged-shutdown <comment/reason> <args_to_pass_to_shutdown>
#
# common examples
# /opt/sbin/logged-shutdown "green it shutdown" -h now
# /opt/sbin/logged-shutdown "reboot triggerd security update reboot" -r now
# /opt/sbin/logged-shutdown "reboot triggerd security update forced reboot" -r <time> "msg"
# note in this last case what is logged is the state when the delayed shutdown 
# command is run not the final state when shutdown actually is forced through 
# (ideally the forced shutdown of course does not actually happen so there 
# should be a subsequent log file for a graceful shutdown when the user has 
# responded to the warnings and logged out before forced time ever occurs)

#read in comment/reason
REASON=$1
shift

#remaining options to pass to shutdown
SHUTDOWN_OPTS=$*

#get a suitable date string
DATE=`date +%F-%T`

#check for log directory and create if not present
LOGDIR=/var/log/logged-shutdown
if [ ! -d  "$LOGDIR" ]; then
   /bin/mkdir -p $LOGDIR
fi

#start log file
LOG=$LOGDIR/shutdown-$DATE
echo -e "Managed Shutdown Log\nDate   = $DATE\nReason = $REASON\nOptions to pass to shutdown = $SHUTDOWN_OPTS" > $LOG

#clean up the logs if needed, say keep ones newer than 60 days
echo -e "\n* Removing any log files older than 60 days" >> $LOG
find $LOGDIR -maxdepth 1 -type f -ctime +60 -exec /bin/rm -rf -- {} \;

#output check logins results
echo -e "\n* Check Logins user list:" >> $LOG
/opt/sbin/check-logins >> $LOG

#output current process list
echo -e "\n* List of Running Process:" >> $LOG
/bin/ps auwwwwx >> $LOG

#cancelled any scheduled shutdown
echo -e "\n* Cancelling any running shutdown, e.g. forced delayed security reboot" >> $LOG
/sbin/shutdown -c >> $LOG 2>&1

WAKEON=`/usr/sbin/ethtool eth0 | grep Wake-on | grep -v Supports | sed 's/^\s*Wake-on: \(.\)/\1/'`

if [ "$WAKEON" != "g" ]; then
    echo -e "\n* eth0 wake on not set, setting it now!" >> $LOG
    /usr/sbin/ethtool -s eth0 wol g
else
    echo -e "\n* eth0 wake on set" >> $LOG
fi

#run the shutdown
echo -e "\n* Running Shutdown with options = $SHUTDOWN_OPTS" >> $LOG
if [ "$SHUTDOWN_OPTS" != "" ]; then
   /sbin/shutdown $SHUTDOWN_OPTS >> $LOG 2>&1
else
   echo "No shutdown options given, no shutdown run" >> $LOG
fi