#!/bin/bash

VERSION='Xymon smartmon script: version 1.2'
# clientlaunch.d/smartmon.cfg
#[smart]
#    ENVFILE $XYMONCLIENTHOME/etc/xymonclient.cfg
#    CMD $XYMONCLIENTHOME/ext/smartmon.bash
#    LOGFILE $XYMONCLIENTHOME/logs/smartmon.log
#    INTERVAL 5m

# IMPORTANT::
# yum install smartmontools
# Add the following to sudoers file (visudo):
#  * Defaults:xymon !requiretty
#  * xymon  ALL=NOPASSWD:/usr/sbin/smartctl

#DEBUG# echo "bb=[$BB]"
#DEBUG# echo "bbdisp=[$BBDISP]"
NL="

"
DASHES="<hr>"
DASH="<hr width='25%' align='left'>"

COLOR="clear"
COLUMN="smart"
MSG="No S.M.A.R.T. device detected."
RAID=""
SMARTCTL="/usr/sbin/smartctl"
SUDO="/usr/bin/sudo"
DATE=$(date)

# build a list of devices smartmon might be monitoring
((cnt=0))
devices=$(/usr/sbin/smartctl --scan | tr "\n" "|")
while (( 0 < ${#devices} ))
 do
    loc=$(expr index "${devices}" "#")
    ((cnt = cnt + 1))
    device[${cnt}]=${devices:0:${loc}-1}
    loc=$(expr index "${devices}" "|")
    devices=${devices:loc}
 done
# process through each device
((d=1))
while ((d <= cnt))
 do
    dt=$(date)
    fullResult=$(${SUDO} ${SMARTCTL} -H ${device[$d]})
#DEBUG#    echo "${dt} $d ${device[$d]} ${fullResult}"
# Cd/DVD devices are Unavailable -- so skip them
    skip=$(echo ${fullResult} | grep 'SMART support is: Unavailable')
    if [[ 'X' == "X${skip}" ]]
     then
#       this grabs reult or status line (scsi reports status: Ok and converts ok to passed)
        result=$(${SUDO} ${SMARTCTL} -H ${device[$d]} | egrep 'result:|Status:' | awk -F':' '{print $2}' | sed 's/ //g'| sed 's/OK/PASSED/')
        info=$(${SUDO} ${SMARTCTL} -i ${device[$d]})
        if [[ 'clear' == "${COLOR}" ]]
         then
            MSG="${NL}<br>${device[$d]}<br>${DASHES}${fullResult}${DASH}${info}"
         else
            MSG="${MSG}<br><br>${device[$d]}<br>${DASHES}${fullResult}${DASH}${info}"
         fi
        if [[ 'XPASSED' == "X${result}" ]]
         then
            if [[ 'clear' == "${COLOR}" ]]
             then
                COLOR='green'
             fi
         else
            COLOR='red'
         fi
     fi
    ((d = d + 1))
 done

#DEBUG# echo "$BB $BBDISP \"status $MACHINE.$COLUMN $COLOR ${DATE} $MSG\""
$BB $BBDISP "status $MACHINE.$COLUMN $COLOR ${DATE} $MSG ${DASHES}${VERSION}"
#DEBUG# tmp="$?"
#DEBUG# echo "error code: $tmp"